[U-Boot] [Patch v2 1/7] powerpc/mpc8xxx: Fix DDR code for empty first DIMM slot and enable DQS_en
Check second DIMM slot in case the first one is empty. Honor DQS enable option for SDRAM mode register.
Signed-off-by: York Sun yorksun@freescale.com --- arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c | 19 ++++++++++--------- arch/powerpc/include/asm/fsl_ddr_sdram.h | 4 ++++ 2 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c index 3824aad..eb8d8e3 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -146,7 +146,7 @@ static void set_csn_config(int dimm_number, int i, fsl_ddr_cfg_regs_t *ddr, break; case 2: if ((dimm_number == 0 && dimm_params[0].n_ranks > 2) || \ - (dimm_number > 1 && dimm_params[dimm_number].n_ranks > 0)) + (dimm_number >= 1 && dimm_params[dimm_number].n_ranks > 0)) go_config = 1; break; case 3: @@ -617,7 +617,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, unsigned int sr_ie = 0; /* Self-refresh interrupt enable */ unsigned int dll_rst_dis; /* DLL reset disable */ unsigned int dqs_cfg; /* DQS configuration */ - unsigned int odt_cfg; /* ODT configuration */ + unsigned int odt_cfg = 0; /* ODT configuration */ unsigned int num_pr; /* Number of posted refreshes */ unsigned int obc_cfg; /* On-The-Fly Burst Chop Cfg */ unsigned int ap_en; /* Address Parity Enable */ @@ -625,15 +625,16 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, unsigned int rcw_en = 0; /* Register Control Word Enable */ unsigned int md_en = 0; /* Mirrored DIMM Enable */ unsigned int qd_en = 0; /* quad-rank DIMM Enable */ + int i;
dll_rst_dis = 1; /* Make this configurable */ dqs_cfg = popts->DQS_config; - if (popts->cs_local_opts[0].odt_rd_cfg - || popts->cs_local_opts[0].odt_wr_cfg) { - /* FIXME */ - odt_cfg = 2; - } else { - odt_cfg = 0; + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + if (popts->cs_local_opts[i].odt_rd_cfg + || popts->cs_local_opts[i].odt_wr_cfg) { + odt_cfg = SDRAM_CFG2_ODT_ONLY_READ; + break; + } }
num_pr = 1; /* Make this configurable */ @@ -1018,7 +1019,7 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr, #if defined(CONFIG_FSL_DDR2) const unsigned int mclk_ps = get_memory_clk_period_ps(); #endif - + dqs_en = !popts->DQS_config; rtt = fsl_ddr_get_rtt();
al = additive_latency; diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h index bc063ea..5b6e8d9 100644 --- a/arch/powerpc/include/asm/fsl_ddr_sdram.h +++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h @@ -92,6 +92,10 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
#define SDRAM_CFG2_D_INIT 0x00000010 #define SDRAM_CFG2_ODT_CFG_MASK 0x00600000 +#define SDRAM_CFG2_ODT_NEVER 0 +#define SDRAM_CFG2_ODT_ONLY_WRITE 1 +#define SDRAM_CFG2_ODT_ONLY_READ 2 +#define SDRAM_CFG2_ODT_ALWAYS 3
#define TIMING_CFG_2_CPO_MASK 0x0F800000
The two slots on the same controller have different addresses.
Signed-off-by: York Sun yorksun@freescale.com --- arch/powerpc/cpu/mpc8xxx/ddr/main.c | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c index 249fd7d..5699b0c 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c @@ -34,14 +34,17 @@ extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, u8 spd_i2c_addr[CONFIG_NUM_DDR_CONTROLLERS][CONFIG_DIMM_SLOTS_PER_CTLR] = { [0][0] = SPD_EEPROM_ADDRESS, }; -#endif -#if (CONFIG_NUM_DDR_CONTROLLERS == 2) && (CONFIG_DIMM_SLOTS_PER_CTLR == 1) +#elif (CONFIG_NUM_DDR_CONTROLLERS == 1) && (CONFIG_DIMM_SLOTS_PER_CTLR == 2) +u8 spd_i2c_addr[CONFIG_NUM_DDR_CONTROLLERS][CONFIG_DIMM_SLOTS_PER_CTLR] = { + [0][0] = SPD_EEPROM_ADDRESS1, /* controller 1 */ + [0][1] = SPD_EEPROM_ADDRESS2, /* controller 1 */ +}; +#elif (CONFIG_NUM_DDR_CONTROLLERS == 2) && (CONFIG_DIMM_SLOTS_PER_CTLR == 1) u8 spd_i2c_addr[CONFIG_NUM_DDR_CONTROLLERS][CONFIG_DIMM_SLOTS_PER_CTLR] = { [0][0] = SPD_EEPROM_ADDRESS1, /* controller 1 */ [1][0] = SPD_EEPROM_ADDRESS2, /* controller 2 */ }; -#endif -#if (CONFIG_NUM_DDR_CONTROLLERS == 2) && (CONFIG_DIMM_SLOTS_PER_CTLR == 2) +#elif (CONFIG_NUM_DDR_CONTROLLERS == 2) && (CONFIG_DIMM_SLOTS_PER_CTLR == 2) u8 spd_i2c_addr[CONFIG_NUM_DDR_CONTROLLERS][CONFIG_DIMM_SLOTS_PER_CTLR] = { [0][0] = SPD_EEPROM_ADDRESS1, /* controller 1 */ [0][1] = SPD_EEPROM_ADDRESS2, /* controller 1 */
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
The two slots on the same controller have different addresses.
Signed-off-by: York Sun yorksun@freescale.com
arch/powerpc/cpu/mpc8xxx/ddr/main.c | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-)
applied to 85xx 'next'
- k
Reduce the calculation error to 1ps.
Signed-off-by: York Sun yorksun@freescale.com --- arch/powerpc/cpu/mpc8xxx/ddr/util.c | 26 +++++++++++--------------- 1 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/util.c b/arch/powerpc/cpu/mpc8xxx/ddr/util.c index 104d360..c644131 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/util.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/util.c @@ -20,7 +20,8 @@ #define ULL_8FS 0xFFFFFFFFULL
/* - * Round mclk_ps to nearest 10 ps in memory controller code. + * Round up mclk_ps to nearest 1 ps in memory controller code + * if the error is 0.5ps or more. * * If an imprecise data rate is too high due to rounding error * propagation, compute a suitably rounded mclk_ps to compute @@ -32,42 +33,37 @@ unsigned int get_memory_clk_period_ps(void) unsigned int result;
/* Round to nearest 10ps, being careful about 64-bit multiply/divide */ - unsigned long long mclk_ps = ULL_2E12; - - /* Add 5*data_rate, for rounding */ - mclk_ps += 5*(unsigned long long)data_rate; + unsigned long long rem, mclk_ps = ULL_2E12;
/* Now perform the big divide, the result fits in 32-bits */ - do_div(mclk_ps, data_rate); - result = mclk_ps; + rem = do_div(mclk_ps, data_rate); + result = (rem >= (data_rate >> 1)) ? mclk_ps + 1 : mclk_ps;
- /* We still need to round to 10ps */ - return 10 * (result/10); + return result; }
/* Convert picoseconds into DRAM clock cycles (rounding up if needed). */ unsigned int picos_to_mclk(unsigned int picos) { unsigned long long clks, clks_rem; + unsigned long data_rate = get_ddr_freq(0);
/* Short circuit for zero picos */ if (!picos) return 0;
/* First multiply the time by the data rate (32x32 => 64) */ - clks = picos * (unsigned long long)get_ddr_freq(0); - + clks = picos * (unsigned long long)data_rate; /* * Now divide by 5^12 and track the 32-bit remainder, then divide * by 2*(2^12) using shifts (and updating the remainder). */ clks_rem = do_div(clks, UL_5POW12); - clks_rem <<= 13; - clks_rem |= clks & (UL_2POW13-1); + clks_rem += (clks & (UL_2POW13-1)) * UL_5POW12; clks >>= 13;
- /* If we had a remainder, then round up */ - if (clks_rem) + /* If we had a remainder greater than the 1ps error, then round up */ + if (clks_rem > data_rate) clks++;
/* Clamp to the maximum representable value */
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Reduce the calculation error to 1ps.
Signed-off-by: York Sun yorksun@freescale.com
arch/powerpc/cpu/mpc8xxx/ddr/util.c | 26 +++++++++++--------------- 1 files changed, 11 insertions(+), 15 deletions(-)
applied to 85xx 'next'
- k
DDR2 has different ODT table and values. Adding table according to Samsung application note.
Fix additive latency calculation to avoid interger underflow.
Signed-off-by: York Sun yorksun@freescale.com --- .../cpu/mpc8xxx/ddr/lc_common_dimm_params.c | 3 +- arch/powerpc/cpu/mpc8xxx/ddr/options.c | 214 +++++++++++++++++++- arch/powerpc/include/asm/fsl_ddr_sdram.h | 7 + doc/README.fsl-ddr | 52 +++++ 4 files changed, 274 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c index 8132e68..20c7db0 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c @@ -448,7 +448,8 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
#if defined(CONFIG_FSL_DDR2) if (lowest_good_caslat < 4) { - additive_latency = picos_to_mclk(tRCD_ps) - lowest_good_caslat; + additive_latency = (picos_to_mclk(tRCD_ps) > lowest_good_caslat) + ? picos_to_mclk(tRCD_ps) - lowest_good_caslat : 0; if (mclk_to_picos(additive_latency) > tRCD_ps) { additive_latency = picos_to_mclk(tRCD_ps); debug("setting additive_latency to %u because it was " diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c index bd9c466..7fc5494 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/options.c @@ -33,6 +33,7 @@ typedef struct { unsigned int odt_rtt_wr; } dynamic_odt_t;
+#ifdef CONFIG_FSL_DDR3 static const dynamic_odt_t single_Q[4] = { { /* cs0 */ FSL_DDR_ODT_NEVER, @@ -262,7 +263,218 @@ static const dynamic_odt_t odt_unknown[4] = { DDR3_RTT_OFF } }; +#else /* CONFIG_FSL_DDR3 */ +static const dynamic_odt_t single_Q[4] = { + {0, 0, 0, 0}, + {0, 0, 0, 0}, + {0, 0, 0, 0}, + {0, 0, 0, 0} +};
+static const dynamic_odt_t single_D[4] = { + { /* cs0 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_ALL, + DDR2_RTT_150_OHM, + DDR2_RTT_OFF + }, + { /* cs1 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + }, + {0, 0, 0, 0}, + {0, 0, 0, 0} +}; + +static const dynamic_odt_t single_S[4] = { + { /* cs0 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_ALL, + DDR2_RTT_150_OHM, + DDR2_RTT_OFF + }, + {0, 0, 0, 0}, + {0, 0, 0, 0}, + {0, 0, 0, 0}, +}; + +static const dynamic_odt_t dual_DD[4] = { + { /* cs0 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + { /* cs1 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + }, + { /* cs2 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + { /* cs3 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + } +}; + +static const dynamic_odt_t dual_DS[4] = { + { /* cs0 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + { /* cs1 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + }, + { /* cs2 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + {0, 0, 0, 0} +}; + +static const dynamic_odt_t dual_SD[4] = { + { /* cs0 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + {0, 0, 0, 0}, + { /* cs2 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + { /* cs3 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + } +}; + +static const dynamic_odt_t dual_SS[4] = { + { /* cs0 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + {0, 0, 0, 0}, + { /* cs2 */ + FSL_DDR_ODT_OTHER_DIMM, + FSL_DDR_ODT_OTHER_DIMM, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + {0, 0, 0, 0} +}; + +static const dynamic_odt_t dual_D0[4] = { + { /* cs0 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_ALL, + DDR2_RTT_150_OHM, + DDR2_RTT_OFF + }, + { /* cs1 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + }, + {0, 0, 0, 0}, + {0, 0, 0, 0} +}; + +static const dynamic_odt_t dual_0D[4] = { + {0, 0, 0, 0}, + {0, 0, 0, 0}, + { /* cs2 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_ALL, + DDR2_RTT_150_OHM, + DDR2_RTT_OFF + }, + { /* cs3 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + } +}; + +static const dynamic_odt_t dual_S0[4] = { + { /* cs0 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_CS, + DDR2_RTT_150_OHM, + DDR2_RTT_OFF + }, + {0, 0, 0, 0}, + {0, 0, 0, 0}, + {0, 0, 0, 0} + +}; + +static const dynamic_odt_t dual_0S[4] = { + {0, 0, 0, 0}, + {0, 0, 0, 0}, + { /* cs2 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_CS, + DDR2_RTT_150_OHM, + DDR2_RTT_OFF + }, + {0, 0, 0, 0} + +}; + +static const dynamic_odt_t odt_unknown[4] = { + { /* cs0 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_CS, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + { /* cs1 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + }, + { /* cs2 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_CS, + DDR2_RTT_75_OHM, + DDR2_RTT_OFF + }, + { /* cs3 */ + FSL_DDR_ODT_NEVER, + FSL_DDR_ODT_NEVER, + DDR2_RTT_OFF, + DDR2_RTT_OFF + } +}; +#endif unsigned int populate_memctl_options(int all_DIMMs_registered, memctl_options_t *popts, dimm_params_t *pdimm, @@ -336,7 +548,7 @@ unsigned int populate_memctl_options(int all_DIMMs_registered,
/* Pick chip-select local options. */ for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { -#if defined(CONFIG_FSL_DDR3) +#if defined(CONFIG_FSL_DDR3) || defined(CONFIG_FSL_DDR2) popts->cs_local_opts[i].odt_rd_cfg = pdodt[i].odt_rd_cfg; popts->cs_local_opts[i].odt_wr_cfg = pdodt[i].odt_wr_cfg; popts->cs_local_opts[i].odt_rtt_norm = pdodt[i].odt_rtt_norm; diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h index 5b6e8d9..050c840 100644 --- a/arch/powerpc/include/asm/fsl_ddr_sdram.h +++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h @@ -31,6 +31,11 @@ #define DDR3_RTT_20_OHM 4 /* RTT_Nom = RZQ/12 */ #define DDR3_RTT_30_OHM 5 /* RTT_Nom = RZQ/8 */
+#define DDR2_RTT_OFF 0 +#define DDR2_RTT_75_OHM 1 +#define DDR2_RTT_150_OHM 2 +#define DDR2_RTT_50_OHM 3 + #if defined(CONFIG_FSL_DDR1) #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (1) typedef ddr1_spd_eeprom_t generic_spd_eeprom_t; @@ -49,6 +54,8 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t; #ifndef CONFIG_FSL_SDRAM_TYPE #define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR3 #endif +#else +#error "Not defined DDR type" #endif /* #if defined(CONFIG_FSL_DDR1) */
#define FSL_DDR_ODT_NEVER 0x0 diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr index c1ee0a6..abfb7f1 100644 --- a/doc/README.fsl-ddr +++ b/doc/README.fsl-ddr @@ -170,3 +170,55 @@ Single slot system
Reference http://www.xrosstalkmag.com/mag_issues/xrosstalk_oct08_final.pdf http://download.micron.com/pdf/technotes/ddr3/tn4108_ddr3_design_guide.pdf + + +Table for ODT for DDR2 +====================== +Two slots system ++-----------------------+----------+---------------+-----------------------------+-----------------------------+ +| Configuration | |DRAM controller| Slot 1 | Slot 2 | ++-----------+-----------+----------+-------+-------+--------------+--------------+--------------+--------------+ +| | | | | | Rank 1 | Rank 2 | Rank 1 | Rank 2 | ++ Slot 1 | Slot 2 |Write/Read| Write | Read |-------+------+-------+------+-------+------+-------+------+ +| | | | | | Write | Read | Write | Read | Write | Read | Write | Read | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 1 | off | 150 | off | off | off | off | 75 | 75 | off | off | +| Dual Rank | Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 2 | off | 150 | 75 | 75 | off | off | off | off | off | off | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 1 | off | 150 | off | off | off | off | 75 | 75 | | | +| Dual Rank |Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 2 | off | 150 | 75 | 75 | off | off | off | off | | | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 1 | off | 150 | off | off | | | 75 | 75 | off | off | +|Single Rank| Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 2 | off | 150 | 75 | 75 | | | off | off | off | off | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 1 | off | 150 | off | off | | | 75 | 75 | | | +|Single Rank|Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| | | Slot 2 | off | 150 | 75 | 75 | | | off | off | | | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| Dual Rank | Empty | Slot 1 | off | 75 | 150 | off | off | off | | | | | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| Empty | Dual Rank | Slot 2 | off | 75 | | | | | 150 | off | off | off | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +|Single Rank| Empty | Slot 1 | off | 75 | 150 | off | | | | | | | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ +| Empty |Single Rank| Slot 2 | off | 75 | | | | | 150 | off | | | ++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+ + +Single slot system ++-------------+------------+---------------+-----------------------------+ +| | |DRAM controller| Rank 1 | Rank 2 | +|Configuration| Write/Read |-------+-------+-------+------+-------+------+ +| | | Write | Read | Write | Read | Write | Read | ++-------------+------------+-------+-------+-------+------+-------+------+ +| | R1 | off | 75 | 150 | off | off | off | +| Dual Rank |------------+-------+-------+-------+------+-------+------+ +| | R2 | off | 75 | 150 | off | off | off | ++-------------+------------+-------+-------+-------+------+-------+------+ +| Single Rank | R1 | off | 75 | 150 | off | ++-------------+------------+-------+-------+-------+------+ + +Reference http://www.samsung.com/global/business/semiconductor/products/dram/downloads... +
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
DDR2 has different ODT table and values. Adding table according to Samsung application note.
Fix additive latency calculation to avoid interger underflow.
Signed-off-by: York Sun yorksun@freescale.com
.../cpu/mpc8xxx/ddr/lc_common_dimm_params.c | 3 +- arch/powerpc/cpu/mpc8xxx/ddr/options.c | 214 +++++++++++++++++++- arch/powerpc/include/asm/fsl_ddr_sdram.h | 7 + doc/README.fsl-ddr | 52 +++++ 4 files changed, 274 insertions(+), 2 deletions(-)
applied, converted dynamic_odt_t to struct dynamic_odt
- k
Unified DDR driver is maintained for better performance, robustness and bug fixes. Upgrading to use unified DDR driver for MPC83xx takes advantage of overall improvement. It requires changes for board files to customize platform-dependent parameters.
To utilize the unified DDR driver, a board needs to define CONFIG_FSL_DDRx in the header file. No more boards will be accepted without such definition.
Note: the workaround for erratum DDR6 for the very old MPC834x Rev 1.0/1.1 and MPC8360 Rev 1.1/1.2 parts is not migrated to unified driver.
Signed-off-by: Kim Phillips kim.phillips@freescale.com Signed-off-by: York Sun yorksun@freescale.com --- Makefile | 1 + arch/powerpc/cpu/mpc83xx/Makefile | 20 +++++- arch/powerpc/cpu/mpc83xx/ecc.c | 18 ++++-- arch/powerpc/cpu/mpc83xx/law.c | 61 ++++++++++++++++ arch/powerpc/cpu/mpc83xx/speed.c | 9 +++ arch/powerpc/cpu/mpc85xx/ddr-gen2.c | 8 ++- arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c | 4 +- arch/powerpc/cpu/mpc8xxx/ddr/util.c | 9 ++- arch/powerpc/include/asm/config.h | 5 +- arch/powerpc/include/asm/immap_83xx.h | 117 +++++++++++++++++++++++++++++- common/Makefile | 8 ++- include/common.h | 4 +- 12 files changed, 245 insertions(+), 19 deletions(-) create mode 100644 arch/powerpc/cpu/mpc83xx/law.c
diff --git a/Makefile b/Makefile index 689fddb..16f015e 100644 --- a/Makefile +++ b/Makefile @@ -252,6 +252,7 @@ LIBS += drivers/power/libpower.o LIBS += drivers/spi/libspi.o ifeq ($(CPU),mpc83xx) LIBS += drivers/qe/libqe.o +LIBS += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o LIBS += arch/powerpc/cpu/mpc8xxx/lib8xxx.o endif ifeq ($(CPU),mpc85xx) diff --git a/arch/powerpc/cpu/mpc83xx/Makefile b/arch/powerpc/cpu/mpc83xx/Makefile index 3979b6f..b353036 100644 --- a/arch/powerpc/cpu/mpc83xx/Makefile +++ b/arch/powerpc/cpu/mpc83xx/Makefile @@ -34,7 +34,6 @@ COBJS-y += cpu.o COBJS-y += cpu_init.o COBJS-y += speed.o COBJS-y += interrupts.o -COBJS-y += spd_sdram.o COBJS-y += ecc.o COBJS-$(CONFIG_QE) += qe_io.o COBJS-$(CONFIG_FSL_SERDES) += serdes.o @@ -42,6 +41,13 @@ COBJS-$(CONFIG_PCI) += pci.o COBJS-$(CONFIG_PCIE) += pcie.o COBJS-$(CONFIG_OF_LIBFDT) += fdt.o
+ifdef CONFIG_FSL_DDR2 +COBJS-$(CONFIG_MPC8349) += ddr-gen2.o +else +COBJS-y += spd_sdram.o +endif +COBJS-$(CONFIG_FSL_DDR2) += law.o + COBJS := $(COBJS-y) SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) @@ -52,6 +58,18 @@ all: $(obj).depend $(START) $(LIB) $(LIB): $(OBJS) $(call cmd_link_o_target, $(OBJS))
+$(obj)ddr-gen1.c: + @rm -f $(obj)ddr-gen1.c + ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/ddr-gen1.c $(obj)ddr-gen1.c + +$(obj)ddr-gen2.c: + @rm -f $(obj)ddr-gen2.c + ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/ddr-gen2.c $(obj)ddr-gen2.c + +$(obj)ddr-gen3.c: + @rm -f $(obj)ddr-gen3.c + ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/ddr-gen3.c $(obj)ddr-gen3.c + #########################################################################
# defines $(obj).depend target diff --git a/arch/powerpc/cpu/mpc83xx/ecc.c b/arch/powerpc/cpu/mpc83xx/ecc.c index f8eab96..717365c 100644 --- a/arch/powerpc/cpu/mpc83xx/ecc.c +++ b/arch/powerpc/cpu/mpc83xx/ecc.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2007 Freescale Semiconductor, Inc. + * Copyright (C) 2007-2011 Freescale Semiconductor, Inc. * * Dave Liu daveliu@freescale.com * based on the contribution of Marian Balakowicz m8@semihalf.com @@ -20,8 +20,12 @@ #if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) void ecc_print_status(void) { - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ddr83xx_t *ddr = &immap->ddr; + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; +#ifdef CONFIG_FSL_DDR2 + ccsr_ddr_t *ddr = &immap->ddr; +#else + ddr83xx_t *ddr = &immap->ddr; +#endif
printf("\nECC mode: %s\n\n", (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF"); @@ -100,8 +104,12 @@ void ecc_print_status(void)
int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) { - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ddr83xx_t *ddr = &immap->ddr; + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; +#ifdef CONFIG_FSL_DDR2 + ccsr_ddr_t *ddr = &immap->ddr; +#else + ddr83xx_t *ddr = &immap->ddr; +#endif volatile u32 val; u64 *addr; u32 count; diff --git a/arch/powerpc/cpu/mpc83xx/law.c b/arch/powerpc/cpu/mpc83xx/law.c new file mode 100644 index 0000000..66c88b6 --- /dev/null +++ b/arch/powerpc/cpu/mpc83xx/law.c @@ -0,0 +1,61 @@ +/* + * Copyright 2011 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/fsl_law.h> +#include <asm/mmu.h> + +int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id) +{ + immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + law83xx_t *ecm = &immap->sysconf.ddrlaw[0]; + u64 start_align, law_sz; + int law_sz_enc; + + if (start == 0) + start_align = 1ull << (LAW_SIZE_2G + 1); + else + start_align = 1ull << (ffs64(start) - 1); + law_sz = min(start_align, sz); + law_sz_enc = __ilog2_u64(law_sz) - 1; + + /* + * Set up LAWBAR for all of DDR. + */ + ecm->bar = start & 0xfffff000; + ecm->ar = (LAWAR_EN | (id << 20) | (LAWAR_SIZE & law_sz_enc)); + debug("DDR:bar=0x%08x\n", ecm->bar); + debug("DDR:ar=0x%08x\n", ecm->ar); + + /* recalculate size based on what was actually covered by the law */ + law_sz = 1ull << __ilog2_u64(law_sz); + + /* do we still have anything to map */ + sz = sz - law_sz; + if (sz) { + start += law_sz; + + start_align = 1ull << (ffs64(start) - 1); + law_sz = min(start_align, sz); + law_sz_enc = __ilog2_u64(law_sz) - 1; + ecm = &immap->sysconf.ddrlaw[1]; + ecm->bar = start & 0xfffff000; + ecm->ar = (LAWAR_EN | (id << 20) | (LAWAR_SIZE & law_sz_enc)); + debug("DDR:bar=0x%08x\n", ecm->bar); + debug("DDR:ar=0x%08x\n", ecm->ar); + } else { + return 0; + } + + /* do we still have anything to map */ + sz = sz - law_sz; + if (sz) + return 1; + + return 0; +} diff --git a/arch/powerpc/cpu/mpc83xx/speed.c b/arch/powerpc/cpu/mpc83xx/speed.c index 5e616dd..82d2ae5 100644 --- a/arch/powerpc/cpu/mpc83xx/speed.c +++ b/arch/powerpc/cpu/mpc83xx/speed.c @@ -504,6 +504,15 @@ ulong get_bus_freq(ulong dummy) return gd->csb_clk; }
+/******************************************** + * get_ddr_freq + * return ddr bus freq in Hz + *********************************************/ +ulong get_ddr_freq(ulong dummy) +{ + return gd->mem_clk; +} + int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) { char buf[32]; diff --git a/arch/powerpc/cpu/mpc85xx/ddr-gen2.c b/arch/powerpc/cpu/mpc85xx/ddr-gen2.c index 655f99c..10f3685 100644 --- a/arch/powerpc/cpu/mpc85xx/ddr-gen2.c +++ b/arch/powerpc/cpu/mpc85xx/ddr-gen2.c @@ -1,5 +1,5 @@ /* - * Copyright 2008 Freescale Semiconductor, Inc. + * Copyright 2008-2011 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -18,7 +18,11 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, unsigned int ctrl_num) { unsigned int i; - volatile ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC85xx_DDR_ADDR; +#ifdef CONFIG_MPC83xx + ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC83xx_DDR_ADDR; +#else + ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC85xx_DDR_ADDR; +#endif
if (ctrl_num) { printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num); diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c index eb8d8e3..391eb25 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -18,7 +18,9 @@
#include "ddr.h"
-#ifdef CONFIG_MPC85xx +#ifdef CONFIG_MPC83xx + #define _DDR_ADDR CONFIG_SYS_MPC83xx_DDR_ADDR +#elif defined(CONFIG_MPC85xx) #define _DDR_ADDR CONFIG_SYS_MPC85xx_DDR_ADDR #elif defined(CONFIG_MPC86xx) #define _DDR_ADDR CONFIG_SYS_MPC86xx_DDR_ADDR diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/util.c b/arch/powerpc/cpu/mpc8xxx/ddr/util.c index c644131..eb6a17a 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/util.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/util.c @@ -129,10 +129,13 @@ fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params,
void board_add_ram_info(int use_default) { -#if defined(CONFIG_MPC85xx) - volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR); +#if defined(CONFIG_MPC83xx) + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + ccsr_ddr_t *ddr = (void *)&immap->ddr; +#elif defined(CONFIG_MPC85xx) + ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR); #elif defined(CONFIG_MPC86xx) - volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC86xx_DDR_ADDR); + ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC86xx_DDR_ADDR); #endif #if (CONFIG_NUM_DDR_CONTROLLERS > 1) uint32_t cs0_config = in_be32(&ddr->cs0_config); diff --git a/arch/powerpc/include/asm/config.h b/arch/powerpc/include/asm/config.h index c5e5c9c..d138636 100644 --- a/arch/powerpc/include/asm/config.h +++ b/arch/powerpc/include/asm/config.h @@ -42,7 +42,10 @@ #define CONFIG_SYS_BOOT_GET_KBD
#ifndef CONFIG_MAX_MEM_MAPPED -#if defined(CONFIG_4xx) || defined(CONFIG_E500) || defined(CONFIG_MPC86xx) +#if defined(CONFIG_4xx) || \ + defined(CONFIG_E500) || \ + defined(CONFIG_MPC86xx) || \ + defined(CONFIG_E300) #define CONFIG_MAX_MEM_MAPPED ((phys_size_t)2 << 30) #else #define CONFIG_MAX_MEM_MAPPED (256 << 20) diff --git a/arch/powerpc/include/asm/immap_83xx.h b/arch/powerpc/include/asm/immap_83xx.h index cc0293a..8d4c9cb 100644 --- a/arch/powerpc/include/asm/immap_83xx.h +++ b/arch/powerpc/include/asm/immap_83xx.h @@ -1,5 +1,5 @@ /* - * Copyright 2004-2009 Freescale Semiconductor, Inc. + * Copyright 2004-2011 Freescale Semiconductor, Inc. * * MPC83xx Internal Memory Map * @@ -285,6 +285,105 @@ typedef struct qesba83xx { /* * DDR Memory Controller Memory Map */ +#if defined(CONFIG_FSL_DDR2) || defined(CONFIG_FSL_DDR3) +typedef struct ccsr_ddr { + u32 cs0_bnds; /* Chip Select 0 Memory Bounds */ + u8 res1[4]; + u32 cs1_bnds; /* Chip Select 1 Memory Bounds */ + u8 res2[4]; + u32 cs2_bnds; /* Chip Select 2 Memory Bounds */ + u8 res3[4]; + u32 cs3_bnds; /* Chip Select 3 Memory Bounds */ + u8 res4[100]; + u32 cs0_config; /* Chip Select Configuration */ + u32 cs1_config; /* Chip Select Configuration */ + u32 cs2_config; /* Chip Select Configuration */ + u32 cs3_config; /* Chip Select Configuration */ + u8 res4a[48]; + u32 cs0_config_2; /* Chip Select Configuration 2 */ + u32 cs1_config_2; /* Chip Select Configuration 2 */ + u32 cs2_config_2; /* Chip Select Configuration 2 */ + u32 cs3_config_2; /* Chip Select Configuration 2 */ + u8 res5[48]; + u32 timing_cfg_3; /* SDRAM Timing Configuration 3 */ + u32 timing_cfg_0; /* SDRAM Timing Configuration 0 */ + u32 timing_cfg_1; /* SDRAM Timing Configuration 1 */ + u32 timing_cfg_2; /* SDRAM Timing Configuration 2 */ + u32 sdram_cfg; /* SDRAM Control Configuration */ + u32 sdram_cfg_2; /* SDRAM Control Configuration 2 */ + u32 sdram_mode; /* SDRAM Mode Configuration */ + u32 sdram_mode_2; /* SDRAM Mode Configuration 2 */ + u32 sdram_md_cntl; /* SDRAM Mode Control */ + u32 sdram_interval; /* SDRAM Interval Configuration */ + u32 sdram_data_init; /* SDRAM Data initialization */ + u8 res6[4]; + u32 sdram_clk_cntl; /* SDRAM Clock Control */ + u8 res7[20]; + u32 init_addr; /* training init addr */ + u32 init_ext_addr; /* training init extended addr */ + u8 res8_1[16]; + u32 timing_cfg_4; /* SDRAM Timing Configuration 4 */ + u32 timing_cfg_5; /* SDRAM Timing Configuration 5 */ + u8 reg8_1a[8]; + u32 ddr_zq_cntl; /* ZQ calibration control*/ + u32 ddr_wrlvl_cntl; /* write leveling control*/ + u8 reg8_1aa[4]; + u32 ddr_sr_cntr; /* self refresh counter */ + u32 ddr_sdram_rcw_1; /* Control Words 1 */ + u32 ddr_sdram_rcw_2; /* Control Words 2 */ + u8 reg_1ab[8]; + u32 ddr_wrlvl_cntl_2; /* write leveling control 2 */ + u32 ddr_wrlvl_cntl_3; /* write leveling control 3 */ + u8 res8_1b[104]; + u32 sdram_mode_3; /* SDRAM Mode Configuration 3 */ + u32 sdram_mode_4; /* SDRAM Mode Configuration 4 */ + u32 sdram_mode_5; /* SDRAM Mode Configuration 5 */ + u32 sdram_mode_6; /* SDRAM Mode Configuration 6 */ + u32 sdram_mode_7; /* SDRAM Mode Configuration 7 */ + u32 sdram_mode_8; /* SDRAM Mode Configuration 8 */ + u8 res8_1ba[0x908]; + u32 ddr_dsr1; /* Debug Status 1 */ + u32 ddr_dsr2; /* Debug Status 2 */ + u32 ddr_cdr1; /* Control Driver 1 */ + u32 ddr_cdr2; /* Control Driver 2 */ + u8 res8_1c[200]; + u32 ip_rev1; /* IP Block Revision 1 */ + u32 ip_rev2; /* IP Block Revision 2 */ + u32 eor; /* Enhanced Optimization Register */ + u8 res8_2[252]; + u32 mtcr; /* Memory Test Control Register */ + u8 res8_3[28]; + u32 mtp1; /* Memory Test Pattern 1 */ + u32 mtp2; /* Memory Test Pattern 2 */ + u32 mtp3; /* Memory Test Pattern 3 */ + u32 mtp4; /* Memory Test Pattern 4 */ + u32 mtp5; /* Memory Test Pattern 5 */ + u32 mtp6; /* Memory Test Pattern 6 */ + u32 mtp7; /* Memory Test Pattern 7 */ + u32 mtp8; /* Memory Test Pattern 8 */ + u32 mtp9; /* Memory Test Pattern 9 */ + u32 mtp10; /* Memory Test Pattern 10 */ + u8 res8_4[184]; + u32 data_err_inject_hi; /* Data Path Err Injection Mask High */ + u32 data_err_inject_lo; /* Data Path Err Injection Mask Low */ + u32 ecc_err_inject; /* Data Path Err Injection Mask ECC */ + u8 res9[20]; + u32 capture_data_hi; /* Data Path Read Capture High */ + u32 capture_data_lo; /* Data Path Read Capture Low */ + u32 capture_ecc; /* Data Path Read Capture ECC */ + u8 res10[20]; + u32 err_detect; /* Error Detect */ + u32 err_disable; /* Error Disable */ + u32 err_int_en; + u32 capture_attributes; /* Error Attrs Capture */ + u32 capture_address; /* Error Addr Capture */ + u32 capture_ext_address; /* Error Extended Addr Capture */ + u32 err_sbe; /* Single-Bit ECC Error Management */ + u8 res11[164]; + u32 debug[32]; /* debug_1 to debug_32 */ + u8 res12[128]; +} ccsr_ddr_t; +#else typedef struct ddr_cs_bnds { u32 csbnds; u8 res0[4]; @@ -334,6 +433,7 @@ typedef struct ddr83xx { u32 debug_reg; u8 res9[0xFC]; } ddr83xx_t; +#endif
/* * DUART @@ -641,7 +741,11 @@ typedef struct immap { u8 dll_ddr[0x100]; u8 dll_lbc[0x100]; u8 res1[0xE00]; - ddr83xx_t ddr; /* DDR Memory Controller Memory */ +#if defined(CONFIG_FSL_DDR2) || defined(CONFIG_FSL_DDR3) + ccsr_ddr_t ddr; /* DDR Memory Controller Memory */ +#else + ddr83xx_t ddr; /* DDR Memory Controller Memory */ +#endif fsl_i2c_t i2c[2]; /* I2C Controllers */ u8 res2[0x1300]; duart83xx_t duart[2]; /* DUART */ @@ -869,10 +973,15 @@ typedef struct immap { } immap_t; #endif
+#define CONFIG_SYS_MPC83xx_DDR_OFFSET (0x2000) +#define CONFIG_SYS_MPC83xx_DDR_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_DDR_OFFSET) #define CONFIG_SYS_MPC83xx_DMA_OFFSET (0x8000) -#define CONFIG_SYS_MPC83xx_DMA_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_DMA_OFFSET) +#define CONFIG_SYS_MPC83xx_DMA_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_DMA_OFFSET) #define CONFIG_SYS_MPC83xx_ESDHC_OFFSET (0x2e000) -#define CONFIG_SYS_MPC83xx_ESDHC_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_ESDHC_OFFSET) +#define CONFIG_SYS_MPC83xx_ESDHC_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_ESDHC_OFFSET)
#ifndef CONFIG_SYS_MPC83xx_USB_OFFSET #define CONFIG_SYS_MPC83xx_USB_OFFSET 0x23000 diff --git a/common/Makefile b/common/Makefile index 224b7cc..8452d5d 100644 --- a/common/Makefile +++ b/common/Makefile @@ -162,7 +162,13 @@ COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
# others -COBJS-$(CONFIG_DDR_SPD) += ddr_spd.o +ifdef CONFIG_DDR_SPD +SPD := y +endif +ifdef CONFIG_SPD_EEPROM +SPD := y +endif +COBJS-$(SPD) += ddr_spd.o COBJS-$(CONFIG_HWCONFIG) += hwconfig.o COBJS-$(CONFIG_CONSOLE_MUX) += iomux.o COBJS-y += flash.o diff --git a/include/common.h b/include/common.h index 1e21b7a..c22068a 100644 --- a/include/common.h +++ b/include/common.h @@ -537,10 +537,12 @@ ulong get_PERCLK3(void); ulong get_bus_freq (ulong); int get_serial_clock(void);
+#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) +ulong get_ddr_freq(ulong); +#endif #if defined(CONFIG_MPC85xx) typedef MPC85xx_SYS_INFO sys_info_t; void get_sys_info ( sys_info_t * ); -ulong get_ddr_freq (ulong); #endif #if defined(CONFIG_MPC86xx) typedef MPC86xx_SYS_INFO sys_info_t;
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Unified DDR driver is maintained for better performance, robustness and bug fixes. Upgrading to use unified DDR driver for MPC83xx takes advantage of overall improvement. It requires changes for board files to customize platform-dependent parameters.
To utilize the unified DDR driver, a board needs to define CONFIG_FSL_DDRx in the header file. No more boards will be accepted without such definition.
Note: the workaround for erratum DDR6 for the very old MPC834x Rev 1.0/1.1 and MPC8360 Rev 1.1/1.2 parts is not migrated to unified driver.
Signed-off-by: Kim Phillips kim.phillips@freescale.com Signed-off-by: York Sun yorksun@freescale.com
Makefile | 1 + arch/powerpc/cpu/mpc83xx/Makefile | 20 +++++- arch/powerpc/cpu/mpc83xx/ecc.c | 18 ++++-- arch/powerpc/cpu/mpc83xx/law.c | 61 ++++++++++++++++ arch/powerpc/cpu/mpc83xx/speed.c | 9 +++ arch/powerpc/cpu/mpc85xx/ddr-gen2.c | 8 ++- arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c | 4 +- arch/powerpc/cpu/mpc8xxx/ddr/util.c | 9 ++- arch/powerpc/include/asm/config.h | 5 +- arch/powerpc/include/asm/immap_83xx.h | 117 +++++++++++++++++++++++++++++- common/Makefile | 8 ++- include/common.h | 4 +- 12 files changed, 245 insertions(+), 19 deletions(-) create mode 100644 arch/powerpc/cpu/mpc83xx/law.c
applied to 85xx 'next'
- k
Update MPC8349EMDS to use unified DDR driver instead of spd_sdram.c. The unified driver can initialize data using DDR controller. No need to use DMA if just to initialze for ECC.
Signed-off-by: York Sun yorksun@freescale.com Signed-off-by: Kim Phillips kim.phillips@freescale.com --- board/freescale/mpc8349emds/Makefile | 1 + board/freescale/mpc8349emds/ddr.c | 107 +++++++++++++++++++++++++++++ board/freescale/mpc8349emds/mpc8349emds.c | 26 ++++--- include/configs/MPC8349EMDS.h | 16 ++++ 4 files changed, 139 insertions(+), 11 deletions(-) create mode 100644 board/freescale/mpc8349emds/ddr.c
diff --git a/board/freescale/mpc8349emds/Makefile b/board/freescale/mpc8349emds/Makefile index 4f76eab..601c3bf 100644 --- a/board/freescale/mpc8349emds/Makefile +++ b/board/freescale/mpc8349emds/Makefile @@ -27,6 +27,7 @@ LIB = $(obj)lib$(BOARD).o
COBJS-y += $(BOARD).o COBJS-$(CONFIG_PCI) += pci.o +COBJS-$(CONFIG_FSL_DDR2) += ddr.o
COBJS := $(COBJS-y) SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/board/freescale/mpc8349emds/ddr.c b/board/freescale/mpc8349emds/ddr.c new file mode 100644 index 0000000..0209c1e --- /dev/null +++ b/board/freescale/mpc8349emds/ddr.c @@ -0,0 +1,107 @@ +/* + * Copyright 2011 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#include <asm/fsl_ddr_sdram.h> +#include <asm/fsl_ddr_dimm_params.h> + +struct board_specific_parameters { + u32 datarate_mhz_low; + u32 datarate_mhz_high; + u32 n_ranks; + u32 clk_adjust; + u32 cpo; + u32 write_data_delay; + u32 force_2T; +}; + +const struct board_specific_parameters board_specific_parameters_udimm[][20] = { + { + /* + * memory controller 0 + * lo| hi| num| clk| cpo|wrdata|2T + * mhz| mhz|ranks|adjst| | delay| + */ + { 0, 300, 2, 4, 4, 2, 0}, + {301, 365, 2, 4, 6, 2, 0}, + {366, 450, 2, 4, 7, 2, 0}, + {451, 850, 2, 4, 31, 2, 0}, + { 0, 300, 1, 4, 4, 2, 0}, + {301, 365, 1, 4, 6, 2, 0}, + {366, 450, 1, 4, 7, 2, 0}, + {451, 850, 1, 4, 31, 2, 0} + } +}; + +void fsl_ddr_board_options(memctl_options_t *popts, + dimm_params_t *pdimm, + unsigned int ctrl_num) +{ + const struct board_specific_parameters *pbsp; + u32 num_params; + u32 i, dimm_num; + ulong ddr_freq; + + if (ctrl_num != 0) /* we have only one controller */ + return; + for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) { + if (pdimm[i].n_ranks) + break; + } + if (i >= CONFIG_DIMM_SLOTS_PER_CTLR) /* no DIMM */ + return; + + dimm_num = i; + pbsp = &(board_specific_parameters_udimm[ctrl_num][0]); + num_params = sizeof(board_specific_parameters_udimm[ctrl_num]) / + sizeof(board_specific_parameters_udimm[0][0]); + + /* Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr + * freqency and n_banks specified in board_specific_parameters table. + */ + ddr_freq = get_ddr_freq(0) / 1000000; + for (i = 0; i < num_params; i++) { + if (ddr_freq >= pbsp->datarate_mhz_low && + ddr_freq <= pbsp->datarate_mhz_high && + pdimm[dimm_num].n_ranks == pbsp->n_ranks) { + popts->clk_adjust = pbsp->clk_adjust; + popts->cpo_override = pbsp->cpo; + popts->write_data_delay = pbsp->write_data_delay; + popts->twoT_en = pbsp->force_2T; + break; + } + pbsp++; + } + + if (i == num_params) { + printf("Warning: board specific timing not found " + "for data rate %lu MT/s!\n", ddr_freq); + } + + /* + * Factors to consider for half-strength driver enable: + * - number of DIMMs installed + */ + popts->half_strength_driver_enable = 0; + popts->DQS_config = 0; /* only true DQS signal is used on board */ +} diff --git a/board/freescale/mpc8349emds/mpc8349emds.c b/board/freescale/mpc8349emds/mpc8349emds.c index 365ac37..620540f 100644 --- a/board/freescale/mpc8349emds/mpc8349emds.c +++ b/board/freescale/mpc8349emds/mpc8349emds.c @@ -29,7 +29,11 @@ #include <i2c.h> #include <spi.h> #include <miiphy.h> +#ifdef CONFIG_FSL_DDR2 +#include <asm/fsl_ddr_sdram.h> +#else #include <spd_sdram.h> +#endif
#if defined(CONFIG_OF_LIBFDT) #include <libfdt.h> @@ -62,7 +66,7 @@ int board_early_init_f (void) phys_size_t initdram (int board_type) { volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - u32 msize = 0; + phys_size_t msize = 0;
if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im) return -1; @@ -70,24 +74,24 @@ phys_size_t initdram (int board_type) /* DDR SDRAM - Main SODIMM */ im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR; #if defined(CONFIG_SPD_EEPROM) - msize = spd_sdram(); +#ifndef CONFIG_FSL_DDR2 + msize = spd_sdram() * 1024 * 1024; +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) + ddr_enable_ecc(msize); +#endif +#else + msize = fsl_ddr_sdram(); +#endif #else - msize = fixed_sdram(); + msize = fixed_sdram() * 1024 * 1024; #endif /* * Initialize SDRAM if it is on local bus. */ sdram_init();
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) - /* - * Initialize and enable DDR ECC. - */ - ddr_enable_ecc(msize * 1024 * 1024); -#endif - /* return total bus SDRAM size(bytes) -- DDR */ - return (msize * 1024 * 1024); + return msize; }
#if !defined(CONFIG_SPD_EEPROM) diff --git a/include/configs/MPC8349EMDS.h b/include/configs/MPC8349EMDS.h index 45b6b5f..da2b11d 100644 --- a/include/configs/MPC8349EMDS.h +++ b/include/configs/MPC8349EMDS.h @@ -78,6 +78,22 @@ #define CONFIG_SPD_EEPROM /* use SPD EEPROM for DDR setup*/
/* + * define CONFIG_FSL_DDR2 to use unified DDR driver + * undefine it to use old spd_sdram.c + */ +#define CONFIG_FSL_DDR2 +#ifdef CONFIG_FSL_DDR2 +#define CONFIG_SYS_SPD_BUS_NUM 0 +#define SPD_EEPROM_ADDRESS1 0x52 +#define SPD_EEPROM_ADDRESS2 0x51 +#define CONFIG_NUM_DDR_CONTROLLERS 1 +#define CONFIG_DIMM_SLOTS_PER_CTLR 2 +#define CONFIG_CHIP_SELECTS_PER_CTRL (2 * CONFIG_DIMM_SLOTS_PER_CTLR) +#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER +#define CONFIG_MEM_INIT_VALUE 0xDeadBeef +#endif + +/* * 32-bit data path mode. * * Please note that using this mode for devices with the real density of 64-bit
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Update MPC8349EMDS to use unified DDR driver instead of spd_sdram.c. The unified driver can initialize data using DDR controller. No need to use DMA if just to initialze for ECC.
Signed-off-by: York Sun yorksun@freescale.com Signed-off-by: Kim Phillips kim.phillips@freescale.com
board/freescale/mpc8349emds/Makefile | 1 + board/freescale/mpc8349emds/ddr.c | 107 +++++++++++++++++++++++++++++ board/freescale/mpc8349emds/mpc8349emds.c | 26 ++++--- include/configs/MPC8349EMDS.h | 16 ++++ 4 files changed, 139 insertions(+), 11 deletions(-) create mode 100644 board/freescale/mpc8349emds/ddr.c
applied to 85xx 'next'
- k
Dear Kumar Gala,
In message 2A6300E8-A874-49AC-84CB-BE681AF1BF90@freescale.com you wrote:
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Update MPC8349EMDS to use unified DDR driver instead of spd_sdram.c. The unified driver can initialize data using DDR controller. No need to use DMA if just to initialze for ECC.
Signed-off-by: York Sun yorksun@freescale.com Signed-off-by: Kim Phillips kim.phillips@freescale.com
board/freescale/mpc8349emds/Makefile | 1 + board/freescale/mpc8349emds/ddr.c | 107 +++++++++++++++++++++++++++++ board/freescale/mpc8349emds/mpc8349emds.c | 26 ++++--- include/configs/MPC8349EMDS.h | 16 ++++ 4 files changed, 139 insertions(+), 11 deletions(-) create mode 100644 board/freescale/mpc8349emds/ddr.c
applied to 85xx 'next'
Did you test it???
This patch breaks out-of-tree building of the MPC8349EMDS board:
+ MAKEALL_LOGDIR=/work/wd/tmp-ppc-LOG + BUILD_DIR=/work/wd/tmp-ppc + ./MAKEALL MPC8349EMDS Configuring for MPC8349EMDS board... make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make: *** [depend] Error 2
[Local building works.]
Note also that "make distclean" still leaves a file arch/powerpc/cpu/mpc83xx/ddr-gen2.c
Please fix this, too.
Best regards,
Wolfgang Denk
On Oct 23, 2011, at 4:53 AM, Wolfgang Denk wrote:
Dear Kumar Gala,
In message 2A6300E8-A874-49AC-84CB-BE681AF1BF90@freescale.com you wrote:
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Update MPC8349EMDS to use unified DDR driver instead of spd_sdram.c. The unified driver can initialize data using DDR controller. No need to use DMA if just to initialze for ECC.
Signed-off-by: York Sun yorksun@freescale.com Signed-off-by: Kim Phillips kim.phillips@freescale.com
board/freescale/mpc8349emds/Makefile | 1 + board/freescale/mpc8349emds/ddr.c | 107 +++++++++++++++++++++++++++++ board/freescale/mpc8349emds/mpc8349emds.c | 26 ++++--- include/configs/MPC8349EMDS.h | 16 ++++ 4 files changed, 139 insertions(+), 11 deletions(-) create mode 100644 board/freescale/mpc8349emds/ddr.c
applied to 85xx 'next'
Did you test it???
This patch breaks out-of-tree building of the MPC8349EMDS board:
- MAKEALL_LOGDIR=/work/wd/tmp-ppc-LOG
- BUILD_DIR=/work/wd/tmp-ppc
- ./MAKEALL MPC8349EMDS
Configuring for MPC8349EMDS board... make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make: *** [depend] Error 2
[Local building works.]
Note also that "make distclean" still leaves a file arch/powerpc/cpu/mpc83xx/ddr-gen2.c
Please fix this, too.
Best regards,
Wolfgang Denk
I'll yell at the guys to fix this :)
- k
Dear Kim & Kumar,
many weeks ago in message 20111023095323.2087511F9E79@gemini.denx.de I wrote:
Dear Kumar Gala,
In message 2A6300E8-A874-49AC-84CB-BE681AF1BF90@freescale.com you wrote:
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Update MPC8349EMDS to use unified DDR driver instead of spd_sdram.c. The unified driver can initialize data using DDR controller. No need to use DMA if just to initialze for ECC.
Signed-off-by: York Sun yorksun@freescale.com Signed-off-by: Kim Phillips kim.phillips@freescale.com
board/freescale/mpc8349emds/Makefile | 1 + board/freescale/mpc8349emds/ddr.c | 107 +++++++++++++++++++++++++++++ board/freescale/mpc8349emds/mpc8349emds.c | 26 ++++--- include/configs/MPC8349EMDS.h | 16 ++++ 4 files changed, 139 insertions(+), 11 deletions(-) create mode 100644 board/freescale/mpc8349emds/ddr.c
applied to 85xx 'next'
Did you test it???
This patch breaks out-of-tree building of the MPC8349EMDS board:
- MAKEALL_LOGDIR=/work/wd/tmp-ppc-LOG
- BUILD_DIR=/work/wd/tmp-ppc
- ./MAKEALL MPC8349EMDS
Configuring for MPC8349EMDS board... make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make: *** [depend] Error 2
[Local building works.]
Note also that "make distclean" still leaves a file arch/powerpc/cpu/mpc83xx/ddr-gen2.c
Please fix this, too.
Is anybody going to fix this? Or can I assume the board is dead and we can remove it?
Thanks.
Wolfgang Denk
On Wed, 2011-12-07 at 21:40 +0100, Wolfgang Denk wrote:
Dear Kim & Kumar,
many weeks ago in message 20111023095323.2087511F9E79@gemini.denx.de I wrote:
Dear Kumar Gala,
In message 2A6300E8-A874-49AC-84CB-BE681AF1BF90@freescale.com you wrote:
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Update MPC8349EMDS to use unified DDR driver instead of spd_sdram.c. The unified driver can initialize data using DDR controller. No need to use DMA if just to initialze for ECC.
Signed-off-by: York Sun yorksun@freescale.com Signed-off-by: Kim Phillips kim.phillips@freescale.com
board/freescale/mpc8349emds/Makefile | 1 + board/freescale/mpc8349emds/ddr.c | 107 +++++++++++++++++++++++++++++ board/freescale/mpc8349emds/mpc8349emds.c | 26 ++++--- include/configs/MPC8349EMDS.h | 16 ++++ 4 files changed, 139 insertions(+), 11 deletions(-) create mode 100644 board/freescale/mpc8349emds/ddr.c
applied to 85xx 'next'
Did you test it???
This patch breaks out-of-tree building of the MPC8349EMDS board:
- MAKEALL_LOGDIR=/work/wd/tmp-ppc-LOG
- BUILD_DIR=/work/wd/tmp-ppc
- ./MAKEALL MPC8349EMDS
Configuring for MPC8349EMDS board... make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make[1]: *** No rule to make target `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend.ddr-gen2', needed by `/work/wd/tmp-ppc/arch/powerpc/cpu/mpc83xx/.depend'. Stop. make: *** [depend] Error 2
[Local building works.]
Note also that "make distclean" still leaves a file arch/powerpc/cpu/mpc83xx/ddr-gen2.c
Please fix this, too.
Is anybody going to fix this? Or can I assume the board is dead and we can remove it?
A patch was sent on Oct 25 to fix this
http://patchwork.ozlabs.org/patch/121746/
York
Dear York Sun,
In message 1323290774.27412.25.camel@oslab-l1 you wrote:
Is anybody going to fix this? Or can I assume the board is dead and we can remove it?
A patch was sent on Oct 25 to fix this
Yes, and Kim wrote on Fri, 11 Nov 2011:
this somehow got lost from my inbox, but I grabbed it from patchwork and applied it to 83xx.
But I haven't seen any pull request since.
So I have to assume this is dead code and nobody cares about it any more ?
Best regards,
Wolfgang Denk
Wolfgang,
Please pull:
The following changes since commit 5721385b187b3154c7768e6c182501022f4e2e45:
Merge branch 'master' of git://git.denx.de/u-boot-mpc83xx (2011-11-08 07:44:52 +0100)
are available in the git repository at:
git://git.denx.de/u-boot-mpc83xx.git master
Andreas Huber (1): powerpc/83xx: fix sdram initialization for keymile boards
York Sun (1): powerpc/mpc83xx: cleanup makefile for mpc83xx
Makefile | 1 + arch/powerpc/cpu/mpc83xx/Makefile | 9 +++------ board/keymile/km83xx/km83xx.c | 2 +- 3 files changed, 5 insertions(+), 7 deletions(-)
Thanks,
Kim
Dear Kim,
In message 20111207153622.c114decd4ceaa2da6805f55a@freescale.com you wrote:
Please pull:
The following changes since commit 5721385b187b3154c7768e6c182501022f4e2e45:
Merge branch 'master' of git://git.denx.de/u-boot-mpc83xx (2011-11-08 07:44:52 +0100)
are available in the git repository at:
git://git.denx.de/u-boot-mpc83xx.git master
Andreas Huber (1): powerpc/83xx: fix sdram initialization for keymile boards
York Sun (1): powerpc/mpc83xx: cleanup makefile for mpc83xx
Makefile | 1 + arch/powerpc/cpu/mpc83xx/Makefile | 9 +++------ board/keymile/km83xx/km83xx.c | 2 +- 3 files changed, 5 insertions(+), 7 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk
Interactive DDR debugging provides a user interface to view and modify SPD, DIMM parameters, board options and DDR controller registers before DDR is initialized. With this feature, developers can fine-tune DDR for board bringup and other debugging without frequently having to reprogram the flash.
To enable this feature, define CONFIG_FSL_DDR_INTERACTIVE in board header file and set an environment variable to activate it. Syntax:
setenv ddr_interactive on
After reset, U-boot prompts before initializing DDR controllers FSL DDR>
The available commands are print print SPD and intermediate computed data reset reboot machine recompute reload SPD and options to default and recompute regs edit modify spd, parameter, or option compute recompute registers from current next_step to end next_step shows current next_step help this message go program the memory controller and continue with u-boot
The first command should be "compute", which reads data from DIMM SPDs and board options, performs the calculation then stops before setting DDR controller. A user can use "print" and "edit" commands to view and modify anything. "Go" picks up from current step with any modification and compltes the calculation then enables the DDR controller to continue u-boot. "Recompute" does it over from fresh reading.
Signed-off-by: York Sun yorksun@freescale.com --- arch/powerpc/cpu/mpc8xxx/ddr/Makefile | 3 +- arch/powerpc/cpu/mpc8xxx/ddr/ddr.h | 40 +- arch/powerpc/cpu/mpc8xxx/ddr/interactive.c | 1691 ++++++++++++++++++++++++++++ arch/powerpc/cpu/mpc8xxx/ddr/main.c | 9 +- doc/README.fsl-ddr | 18 + 5 files changed, 1744 insertions(+), 17 deletions(-) create mode 100644 arch/powerpc/cpu/mpc8xxx/ddr/interactive.c
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/Makefile b/arch/powerpc/cpu/mpc8xxx/ddr/Makefile index d1b4c4b..29523aa 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/Makefile +++ b/arch/powerpc/cpu/mpc8xxx/ddr/Makefile @@ -1,5 +1,5 @@ # -# Copyright 2008 Freescale Semiconductor, Inc. +# Copyright 2008-2011 Freescale Semiconductor, Inc. # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License @@ -30,6 +30,7 @@ COBJS-$(CONFIG_FSL_DDR2) += ddr2_dimm_params.o COBJS-$(CONFIG_FSL_DDR3) += ddr3_dimm_params.o endif
+COBJS-$(CONFIG_FSL_DDR_INTERACTIVE) += interactive.o
SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h index f59aa33..c8b0f91 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h @@ -56,32 +56,46 @@ typedef struct { #define STEP_PROGRAM_REGS (1 << 6) #define STEP_ALL 0xFFF
-extern unsigned long long +unsigned long long fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, unsigned int size_only);
-extern const char * step_to_string(unsigned int step); +const char *step_to_string(unsigned int step);
-extern unsigned int -compute_fsl_memctl_config_regs(const memctl_options_t *popts, +unsigned int compute_fsl_memctl_config_regs(const memctl_options_t *popts, fsl_ddr_cfg_regs_t *ddr, const common_timing_params_t *common_dimm, const dimm_params_t *dimm_parameters, unsigned int dbw_capacity_adjust, unsigned int size_only); -extern unsigned int -compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, - common_timing_params_t *outpdimm, - unsigned int number_of_dimms); -extern unsigned int populate_memctl_options(int all_DIMMs_registered, +unsigned int compute_lowest_common_dimm_parameters( + const dimm_params_t *dimm_params, + common_timing_params_t *outpdimm, + unsigned int number_of_dimms); +unsigned int populate_memctl_options(int all_DIMMs_registered, memctl_options_t *popts, dimm_params_t *pdimm, unsigned int ctrl_num); -extern void check_interleaving_options(fsl_ddr_info_t *pinfo); +void check_interleaving_options(fsl_ddr_info_t *pinfo);
-extern unsigned int mclk_to_picos(unsigned int mclk); -extern unsigned int get_memory_clk_period_ps(void); -extern unsigned int picos_to_mclk(unsigned int picos); +unsigned int mclk_to_picos(unsigned int mclk); +unsigned int get_memory_clk_period_ps(void); +unsigned int picos_to_mclk(unsigned int picos); +void fsl_ddr_set_lawbar( + const common_timing_params_t *memctl_common_params, + unsigned int memctl_interleaved, + unsigned int ctrl_num); + +unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo); +void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd, + unsigned int ctrl_num); + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +unsigned int check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr); + +/* processor specific function */ +void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, + unsigned int ctrl_num);
/* board specific function */ int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c new file mode 100644 index 0000000..d7d66ef --- /dev/null +++ b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c @@ -0,0 +1,1691 @@ +/* + * Copyright 2010-2011 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 or any later versionas published by the Free Software Foundation. + */ + +/* + * Generic driver for Freescale DDR/DDR2/DDR3 memory controller. + * Based on code from spd_sdram.c + * Author: James Yang [at freescale.com] + * York Sun [at freescale.com] + */ + +#include <common.h> +#include <linux/ctype.h> +#include <asm/types.h> + +#include <asm/fsl_ddr_sdram.h> +#include "ddr.h" + +/* Option parameter Structures */ +struct options_string { + const char *option_name; + size_t offset; + unsigned int size; + const char printhex; +}; + +static unsigned int picos_to_mhz(unsigned int picos) +{ + return 1000000 / picos; +} + +static void print_option_table(const struct options_string *table, + int table_size, + const void *base) +{ + unsigned int i; + unsigned int *ptr; + unsigned long long *ptr_l; + + for (i = 0; i < table_size; i++) { + switch (table[i].size) { + case 4: + ptr = (unsigned int *) (base + table[i].offset); + if (table[i].printhex) { + printf("%s = 0x%08X\n", + table[i].option_name, *ptr); + } else { + printf("%s = %u\n", + table[i].option_name, *ptr); + } + break; + case 8: + ptr_l = (unsigned long long *) (base + table[i].offset); + printf("%s = %llu\n", + table[i].option_name, *ptr_l); + break; + default: + printf("Unrecognized size!\n"); + break; + } + } +} + +static int handle_option_table(const struct options_string *table, + int table_size, + void *base, + const char *opt, + const char *val) +{ + unsigned int i; + unsigned int value, *ptr; + unsigned long long value_l, *ptr_l; + + for (i = 0; i < table_size; i++) { + if (strcmp(table[i].option_name, opt) != 0) + continue; + switch (table[i].size) { + case 4: + value = simple_strtoul(val, NULL, 0); + ptr = base + table[i].offset; + *ptr = value; + break; + case 8: + value_l = simple_strtoull(val, NULL, 0); + ptr_l = base + table[i].offset; + *ptr_l = value_l; + break; + default: + printf("Unrecognized size!\n"); + break; + } + return 1; + } + + return 0; +} + +static void fsl_ddr_generic_edit(void *pdata, + void *pend, + unsigned int element_size, + unsigned int element_num, + unsigned int value) +{ + char *pcdata = (char *)pdata; /* BIG ENDIAN ONLY */ + + pcdata += element_num * element_size; + if ((pcdata + element_size) > (char *) pend) { + printf("trying to write past end of data\n"); + return; + } + + switch (element_size) { + case 1: + __raw_writeb(value, pcdata); + break; + case 2: + __raw_writew(value, pcdata); + break; + case 4: + __raw_writel(value, pcdata); + break; + default: + printf("unexpected element size %u\n", element_size); + break; + } +} + +static void fsl_ddr_spd_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + unsigned int dimm_num, + unsigned int element_num, + unsigned int value) +{ + generic_spd_eeprom_t *pspd; + + pspd = &(pinfo->spd_installed_dimms[ctrl_num][dimm_num]); + fsl_ddr_generic_edit(pspd, pspd + 1, 1, element_num, value); +} + +#define COMMON_TIMING(x) {#x, offsetof(common_timing_params_t, x), \ + sizeof((common_timing_params_t *)0)->x, 0} + +static void lowest_common_dimm_parameters_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + const char *optname_str, + const char *value_str) +{ + common_timing_params_t *p = &pinfo->common_timing_params[ctrl_num]; + + static const struct options_string options[] = { + COMMON_TIMING(tCKmin_X_ps), + COMMON_TIMING(tCKmax_ps), + COMMON_TIMING(tCKmax_max_ps), + COMMON_TIMING(tRCD_ps), + COMMON_TIMING(tRP_ps), + COMMON_TIMING(tRAS_ps), + COMMON_TIMING(tWR_ps), + COMMON_TIMING(tWTR_ps), + COMMON_TIMING(tRFC_ps), + COMMON_TIMING(tRRD_ps), + COMMON_TIMING(tRC_ps), + COMMON_TIMING(refresh_rate_ps), + COMMON_TIMING(tIS_ps), + COMMON_TIMING(tIH_ps), + COMMON_TIMING(tDS_ps), + COMMON_TIMING(tDH_ps), + COMMON_TIMING(tRTP_ps), + COMMON_TIMING(tDQSQ_max_ps), + COMMON_TIMING(tQHS_ps), + COMMON_TIMING(ndimms_present), + COMMON_TIMING(lowest_common_SPD_caslat), + COMMON_TIMING(highest_common_derated_caslat), + COMMON_TIMING(additive_latency), + COMMON_TIMING(all_DIMMs_burst_lengths_bitmask), + COMMON_TIMING(all_DIMMs_registered), + COMMON_TIMING(all_DIMMs_unbuffered), + COMMON_TIMING(all_DIMMs_ECC_capable), + COMMON_TIMING(total_mem), + COMMON_TIMING(base_address), + }; + static const unsigned int n_opts = ARRAY_SIZE(options); + + if (handle_option_table(options, n_opts, p, optname_str, value_str)) + return; + + printf("Error: couldn't find option string %s\n", optname_str); +} + +#define DIMM_PARM(x) {#x, offsetof(dimm_params_t, x), \ + sizeof((dimm_params_t *)0)->x, 0} + +static void fsl_ddr_dimm_parameters_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + unsigned int dimm_num, + const char *optname_str, + const char *value_str) +{ + dimm_params_t *p = &(pinfo->dimm_params[ctrl_num][dimm_num]); + + static const struct options_string options[] = { + DIMM_PARM(n_ranks), + DIMM_PARM(data_width), + DIMM_PARM(primary_sdram_width), + DIMM_PARM(ec_sdram_width), + DIMM_PARM(registered_dimm), + + DIMM_PARM(n_row_addr), + DIMM_PARM(n_col_addr), + DIMM_PARM(edc_config), + DIMM_PARM(n_banks_per_sdram_device), + DIMM_PARM(burst_lengths_bitmask), + DIMM_PARM(row_density), + + DIMM_PARM(tCKmin_X_ps), + DIMM_PARM(tCKmin_X_minus_1_ps), + DIMM_PARM(tCKmin_X_minus_2_ps), + DIMM_PARM(tCKmax_ps), + + DIMM_PARM(caslat_X), + DIMM_PARM(caslat_X_minus_1), + DIMM_PARM(caslat_X_minus_2), + + DIMM_PARM(caslat_lowest_derated), + + DIMM_PARM(tRCD_ps), + DIMM_PARM(tRP_ps), + DIMM_PARM(tRAS_ps), + DIMM_PARM(tWR_ps), + DIMM_PARM(tWTR_ps), + DIMM_PARM(tRFC_ps), + DIMM_PARM(tRRD_ps), + DIMM_PARM(tRC_ps), + DIMM_PARM(refresh_rate_ps), + + DIMM_PARM(tIS_ps), + DIMM_PARM(tIH_ps), + DIMM_PARM(tDS_ps), + DIMM_PARM(tDH_ps), + DIMM_PARM(tRTP_ps), + DIMM_PARM(tDQSQ_max_ps), + DIMM_PARM(tQHS_ps), + + DIMM_PARM(rank_density), + DIMM_PARM(capacity), + DIMM_PARM(base_address), + }; + + static const unsigned int n_opts = ARRAY_SIZE(options); + + if (handle_option_table(options, n_opts, p, optname_str, value_str)) + return; + + printf("couldn't find option string %s\n", optname_str); +} + +static void print_dimm_parameters(const dimm_params_t *pdimm) +{ + static const struct options_string options[] = { + DIMM_PARM(n_ranks), + DIMM_PARM(data_width), + DIMM_PARM(primary_sdram_width), + DIMM_PARM(ec_sdram_width), + DIMM_PARM(registered_dimm), + + DIMM_PARM(n_row_addr), + DIMM_PARM(n_col_addr), + DIMM_PARM(edc_config), + DIMM_PARM(n_banks_per_sdram_device), + + DIMM_PARM(tCKmin_X_ps), + DIMM_PARM(tCKmin_X_minus_1_ps), + DIMM_PARM(tCKmin_X_minus_2_ps), + DIMM_PARM(tCKmax_ps), + + DIMM_PARM(caslat_X), + DIMM_PARM(tAA_ps), + DIMM_PARM(caslat_X_minus_1), + DIMM_PARM(caslat_X_minus_2), + DIMM_PARM(caslat_lowest_derated), + + DIMM_PARM(tRCD_ps), + DIMM_PARM(tRP_ps), + DIMM_PARM(tRAS_ps), + DIMM_PARM(tWR_ps), + DIMM_PARM(tWTR_ps), + DIMM_PARM(tRFC_ps), + DIMM_PARM(tRRD_ps), + DIMM_PARM(tRC_ps), + DIMM_PARM(refresh_rate_ps), + + DIMM_PARM(tIS_ps), + DIMM_PARM(tIH_ps), + DIMM_PARM(tDS_ps), + DIMM_PARM(tDH_ps), + DIMM_PARM(tRTP_ps), + DIMM_PARM(tDQSQ_max_ps), + DIMM_PARM(tQHS_ps), + }; + static const unsigned int n_opts = ARRAY_SIZE(options); + + if (pdimm->n_ranks == 0) { + printf("DIMM not present\n"); + return; + } + printf("DIMM organization parameters:\n"); + printf("module part name = %s\n", pdimm->mpart); + printf("rank_density = %llu bytes (%llu megabytes)\n", + pdimm->rank_density, pdimm->rank_density / 0x100000); + printf("capacity = %llu bytes (%llu megabytes)\n", + pdimm->capacity, pdimm->capacity / 0x100000); + printf("burst_lengths_bitmask = %02X\n", + pdimm->burst_lengths_bitmask); + printf("base_addresss = %llu (%08llX %08llX)\n", + pdimm->base_address, + (pdimm->base_address >> 32), + pdimm->base_address & 0xFFFFFFFF); + print_option_table(options, n_opts, pdimm); +} + +static void print_lowest_common_dimm_parameters( + const common_timing_params_t *plcd_dimm_params) +{ + static const struct options_string options[] = { + COMMON_TIMING(tCKmax_max_ps), + COMMON_TIMING(tRCD_ps), + COMMON_TIMING(tRP_ps), + COMMON_TIMING(tRAS_ps), + COMMON_TIMING(tWR_ps), + COMMON_TIMING(tWTR_ps), + COMMON_TIMING(tRFC_ps), + COMMON_TIMING(tRRD_ps), + COMMON_TIMING(tRC_ps), + COMMON_TIMING(refresh_rate_ps), + COMMON_TIMING(tIS_ps), + COMMON_TIMING(tDS_ps), + COMMON_TIMING(tDH_ps), + COMMON_TIMING(tRTP_ps), + COMMON_TIMING(tDQSQ_max_ps), + COMMON_TIMING(tQHS_ps), + COMMON_TIMING(lowest_common_SPD_caslat), + COMMON_TIMING(highest_common_derated_caslat), + COMMON_TIMING(additive_latency), + COMMON_TIMING(ndimms_present), + COMMON_TIMING(all_DIMMs_registered), + COMMON_TIMING(all_DIMMs_unbuffered), + COMMON_TIMING(all_DIMMs_ECC_capable), + }; + static const unsigned int n_opts = ARRAY_SIZE(options); + + /* Clock frequencies */ + printf("tCKmin_X_ps = %u (%u MHz)\n", + plcd_dimm_params->tCKmin_X_ps, + picos_to_mhz(plcd_dimm_params->tCKmin_X_ps)); + printf("tCKmax_ps = %u (%u MHz)\n", + plcd_dimm_params->tCKmax_ps, + picos_to_mhz(plcd_dimm_params->tCKmax_ps)); + printf("all_DIMMs_burst_lengths_bitmask = %02X\n", + plcd_dimm_params->all_DIMMs_burst_lengths_bitmask); + + print_option_table(options, n_opts, plcd_dimm_params); + + printf("total_mem = %llu (%llu megabytes)\n", + plcd_dimm_params->total_mem, + plcd_dimm_params->total_mem / 0x100000); + printf("base_address = %llu (%llu megabytes)\n", + plcd_dimm_params->base_address, + plcd_dimm_params->base_address / 0x100000); +} + +#define CTRL_OPTIONS(x) {#x, offsetof(memctl_options_t, x), \ + sizeof((memctl_options_t *)0)->x, 0} +#define CTRL_OPTIONS_CS(x, y) {"cs" #x "_" #y, \ + offsetof(memctl_options_t, cs_local_opts[x].y), \ + sizeof((memctl_options_t *)0)->cs_local_opts[x].y, 0} + +static void fsl_ddr_options_edit(fsl_ddr_info_t *pinfo, + unsigned int ctl_num, + const char *optname_str, + const char *value_str) +{ + memctl_options_t *p = &(pinfo->memctl_opts[ctl_num]); + /* + * This array all on the stack and *computed* each time this + * function is rung. + */ + static const struct options_string options[] = { + CTRL_OPTIONS_CS(0, odt_rd_cfg), + CTRL_OPTIONS_CS(0, odt_wr_cfg), +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1) + CTRL_OPTIONS_CS(1, odt_rd_cfg), + CTRL_OPTIONS_CS(1, odt_wr_cfg), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CTRL_OPTIONS_CS(2, odt_rd_cfg), + CTRL_OPTIONS_CS(2, odt_wr_cfg), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CTRL_OPTIONS_CS(3, odt_rd_cfg), + CTRL_OPTIONS_CS(3, odt_wr_cfg), +#endif +#if defined(CONFIG_FSL_DDR3) + CTRL_OPTIONS_CS(0, odt_rtt_norm), + CTRL_OPTIONS_CS(0, odt_rtt_wr), +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1) + CTRL_OPTIONS_CS(1, odt_rtt_norm), + CTRL_OPTIONS_CS(1, odt_rtt_wr), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CTRL_OPTIONS_CS(2, odt_rtt_norm), + CTRL_OPTIONS_CS(2, odt_rtt_wr), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CTRL_OPTIONS_CS(3, odt_rtt_norm), + CTRL_OPTIONS_CS(3, odt_rtt_wr), +#endif +#endif + CTRL_OPTIONS(memctl_interleaving), + CTRL_OPTIONS(memctl_interleaving_mode), + CTRL_OPTIONS(ba_intlv_ctl), + CTRL_OPTIONS(ECC_mode), + CTRL_OPTIONS(ECC_init_using_memctl), + CTRL_OPTIONS(DQS_config), + CTRL_OPTIONS(self_refresh_in_sleep), + CTRL_OPTIONS(dynamic_power), + CTRL_OPTIONS(data_bus_width), + CTRL_OPTIONS(burst_length), + CTRL_OPTIONS(cas_latency_override), + CTRL_OPTIONS(cas_latency_override_value), + CTRL_OPTIONS(use_derated_caslat), + CTRL_OPTIONS(additive_latency_override), + CTRL_OPTIONS(additive_latency_override_value), + CTRL_OPTIONS(clk_adjust), + CTRL_OPTIONS(cpo_override), + CTRL_OPTIONS(write_data_delay), + CTRL_OPTIONS(half_strength_driver_enable), + + /* + * These can probably be changed to 2T_EN and 3T_EN + * (using a leading numerical character) without problem + */ + CTRL_OPTIONS(twoT_en), + CTRL_OPTIONS(threeT_en), + CTRL_OPTIONS(ap_en), + CTRL_OPTIONS(bstopre), + CTRL_OPTIONS(wrlvl_override), + CTRL_OPTIONS(wrlvl_sample), + CTRL_OPTIONS(wrlvl_start), + CTRL_OPTIONS(rcw_override), + CTRL_OPTIONS(rcw_1), + CTRL_OPTIONS(rcw_2), + CTRL_OPTIONS(tCKE_clock_pulse_width_ps), + CTRL_OPTIONS(tFAW_window_four_activates_ps), + CTRL_OPTIONS(trwt_override), + CTRL_OPTIONS(trwt), + }; + + static const unsigned int n_opts = ARRAY_SIZE(options); + + if (handle_option_table(options, n_opts, p, + optname_str, value_str)) + return; + + printf("couldn't find option string %s\n", optname_str); +} + +#define CFG_REGS(x) {#x, offsetof(fsl_ddr_cfg_regs_t, x), \ + sizeof((fsl_ddr_cfg_regs_t *)0)->x, 1} +#define CFG_REGS_CS(x, y) {"cs" #x "_" #y, \ + offsetof(fsl_ddr_cfg_regs_t, cs[x].y), \ + sizeof((fsl_ddr_cfg_regs_t *)0)->cs[x].y, 1} + +static void print_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int i; + static const struct options_string options[] = { + CFG_REGS_CS(0, bnds), + CFG_REGS_CS(0, config), + CFG_REGS_CS(0, config_2), +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1) + CFG_REGS_CS(1, bnds), + CFG_REGS_CS(1, config), + CFG_REGS_CS(1, config_2), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CFG_REGS_CS(2, bnds), + CFG_REGS_CS(2, config), + CFG_REGS_CS(2, config_2), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CFG_REGS_CS(3, bnds), + CFG_REGS_CS(3, config), + CFG_REGS_CS(3, config_2), +#endif + CFG_REGS(timing_cfg_3), + CFG_REGS(timing_cfg_0), + CFG_REGS(timing_cfg_1), + CFG_REGS(timing_cfg_2), + CFG_REGS(ddr_sdram_cfg), + CFG_REGS(ddr_sdram_cfg_2), + CFG_REGS(ddr_sdram_mode), + CFG_REGS(ddr_sdram_mode_2), + CFG_REGS(ddr_sdram_mode_3), + CFG_REGS(ddr_sdram_mode_4), + CFG_REGS(ddr_sdram_mode_5), + CFG_REGS(ddr_sdram_mode_6), + CFG_REGS(ddr_sdram_mode_7), + CFG_REGS(ddr_sdram_mode_8), + CFG_REGS(ddr_sdram_interval), + CFG_REGS(ddr_data_init), + CFG_REGS(ddr_sdram_clk_cntl), + CFG_REGS(ddr_init_addr), + CFG_REGS(ddr_init_ext_addr), + CFG_REGS(timing_cfg_4), + CFG_REGS(timing_cfg_5), + CFG_REGS(ddr_zq_cntl), + CFG_REGS(ddr_wrlvl_cntl), + CFG_REGS(ddr_sr_cntr), + CFG_REGS(ddr_sdram_rcw_1), + CFG_REGS(ddr_sdram_rcw_2), + CFG_REGS(ddr_cdr1), + CFG_REGS(ddr_cdr2), + CFG_REGS(err_disable), + CFG_REGS(err_int_en), + }; + static const unsigned int n_opts = ARRAY_SIZE(options); + + print_option_table(options, n_opts, ddr); + + for (i = 0; i < 32; i++) + printf("debug_%02d = 0x%08X\n", i+1, ddr->debug[i]); +} + +static void fsl_ddr_regs_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + const char *regname, + const char *value_str) +{ + unsigned int i; + fsl_ddr_cfg_regs_t *ddr; + char buf[20]; + static const struct options_string options[] = { + CFG_REGS_CS(0, bnds), + CFG_REGS_CS(0, config), + CFG_REGS_CS(0, config_2), +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1) + CFG_REGS_CS(1, bnds), + CFG_REGS_CS(1, config), + CFG_REGS_CS(1, config_2), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CFG_REGS_CS(2, bnds), + CFG_REGS_CS(2, config), + CFG_REGS_CS(2, config_2), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 3) + CFG_REGS_CS(3, bnds), + CFG_REGS_CS(3, config), + CFG_REGS_CS(3, config_2), +#endif + CFG_REGS(timing_cfg_3), + CFG_REGS(timing_cfg_0), + CFG_REGS(timing_cfg_1), + CFG_REGS(timing_cfg_2), + CFG_REGS(ddr_sdram_cfg), + CFG_REGS(ddr_sdram_cfg_2), + CFG_REGS(ddr_sdram_mode), + CFG_REGS(ddr_sdram_mode_2), + CFG_REGS(ddr_sdram_mode_3), + CFG_REGS(ddr_sdram_mode_4), + CFG_REGS(ddr_sdram_mode_5), + CFG_REGS(ddr_sdram_mode_6), + CFG_REGS(ddr_sdram_mode_7), + CFG_REGS(ddr_sdram_mode_8), + CFG_REGS(ddr_sdram_interval), + CFG_REGS(ddr_data_init), + CFG_REGS(ddr_sdram_clk_cntl), + CFG_REGS(ddr_init_addr), + CFG_REGS(ddr_init_ext_addr), + CFG_REGS(timing_cfg_4), + CFG_REGS(timing_cfg_5), + CFG_REGS(ddr_zq_cntl), + CFG_REGS(ddr_wrlvl_cntl), + CFG_REGS(ddr_sr_cntr), + CFG_REGS(ddr_sdram_rcw_1), + CFG_REGS(ddr_sdram_rcw_2), + CFG_REGS(ddr_cdr1), + CFG_REGS(ddr_cdr2), + CFG_REGS(err_disable), + CFG_REGS(err_int_en), + CFG_REGS(ddr_sdram_rcw_2), + CFG_REGS(ddr_sdram_rcw_2), + + }; + static const unsigned int n_opts = ARRAY_SIZE(options); + + debug("fsl_ddr_regs_edit: ctrl_num = %u, " + "regname = %s, value = %s\n", + ctrl_num, regname, value_str); + if (ctrl_num > CONFIG_NUM_DDR_CONTROLLERS) + return; + + ddr = &(pinfo->fsl_ddr_config_reg[ctrl_num]); + + if (handle_option_table(options, n_opts, ddr, regname, value_str)) + return; + + for (i = 0; i < 32; i++) { + unsigned int value = simple_strtoul(value_str, NULL, 0); + sprintf(buf, "debug_%u", i + 1); + if (strcmp(buf, regname) == 0) { + ddr->debug[i] = value; + return; + } + } + printf("Error: couldn't find register string %s\n", regname); +} + +#define CTRL_OPTIONS_HEX(x) {#x, offsetof(memctl_options_t, x), \ + sizeof((memctl_options_t *)0)->x, 1} + +static void print_memctl_options(const memctl_options_t *popts) +{ + static const struct options_string options[] = { + CTRL_OPTIONS_CS(0, odt_rd_cfg), + CTRL_OPTIONS_CS(0, odt_wr_cfg), +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1) + CTRL_OPTIONS_CS(1, odt_rd_cfg), + CTRL_OPTIONS_CS(1, odt_wr_cfg), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CTRL_OPTIONS_CS(2, odt_rd_cfg), + CTRL_OPTIONS_CS(2, odt_wr_cfg), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 3) + CTRL_OPTIONS_CS(3, odt_rd_cfg), + CTRL_OPTIONS_CS(3, odt_wr_cfg), +#endif +#if defined(CONFIG_FSL_DDR3) + CTRL_OPTIONS_CS(0, odt_rtt_norm), + CTRL_OPTIONS_CS(0, odt_rtt_wr), +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1) + CTRL_OPTIONS_CS(1, odt_rtt_norm), + CTRL_OPTIONS_CS(1, odt_rtt_wr), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + CTRL_OPTIONS_CS(2, odt_rtt_norm), + CTRL_OPTIONS_CS(2, odt_rtt_wr), +#endif +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 3) + CTRL_OPTIONS_CS(3, odt_rtt_norm), + CTRL_OPTIONS_CS(3, odt_rtt_wr), +#endif +#endif + CTRL_OPTIONS(memctl_interleaving), + CTRL_OPTIONS(memctl_interleaving_mode), + CTRL_OPTIONS_HEX(ba_intlv_ctl), + CTRL_OPTIONS(ECC_mode), + CTRL_OPTIONS(ECC_init_using_memctl), + CTRL_OPTIONS(DQS_config), + CTRL_OPTIONS(self_refresh_in_sleep), + CTRL_OPTIONS(dynamic_power), + CTRL_OPTIONS(data_bus_width), + CTRL_OPTIONS(burst_length), + CTRL_OPTIONS(cas_latency_override), + CTRL_OPTIONS(cas_latency_override_value), + CTRL_OPTIONS(use_derated_caslat), + CTRL_OPTIONS(additive_latency_override), + CTRL_OPTIONS(additive_latency_override_value), + CTRL_OPTIONS(clk_adjust), + CTRL_OPTIONS(cpo_override), + CTRL_OPTIONS(write_data_delay), + CTRL_OPTIONS(half_strength_driver_enable), + /* + * These can probably be changed to 2T_EN and 3T_EN + * (using a leading numerical character) without problem + */ + CTRL_OPTIONS(twoT_en), + CTRL_OPTIONS(threeT_en), + CTRL_OPTIONS(registered_dimm_en), + CTRL_OPTIONS(ap_en), + CTRL_OPTIONS(bstopre), + CTRL_OPTIONS(wrlvl_override), + CTRL_OPTIONS(wrlvl_sample), + CTRL_OPTIONS(wrlvl_start), + CTRL_OPTIONS(rcw_override), + CTRL_OPTIONS(rcw_1), + CTRL_OPTIONS(rcw_2), + CTRL_OPTIONS(tCKE_clock_pulse_width_ps), + CTRL_OPTIONS(tFAW_window_four_activates_ps), + CTRL_OPTIONS(trwt_override), + CTRL_OPTIONS(trwt), + }; + static const unsigned int n_opts = ARRAY_SIZE(options); + + print_option_table(options, n_opts, popts); +} + +#ifdef CONFIG_FSL_DDR1 +void ddr1_spd_dump(const ddr1_spd_eeprom_t *spd) +{ + unsigned int i; + + printf("%-3d : %02x %s\n", 0, spd->info_size, + " spd->info_size, * 0 # bytes written into serial memory *"); + printf("%-3d : %02x %s\n", 1, spd->chip_size, + " spd->chip_size, * 1 Total # bytes of SPD memory device *"); + printf("%-3d : %02x %s\n", 2, spd->mem_type, + " spd->mem_type, * 2 Fundamental memory type *"); + printf("%-3d : %02x %s\n", 3, spd->nrow_addr, + " spd->nrow_addr, * 3 # of Row Addresses on this assembly *"); + printf("%-3d : %02x %s\n", 4, spd->ncol_addr, + " spd->ncol_addr, * 4 # of Column Addrs on this assembly *"); + printf("%-3d : %02x %s\n", 5, spd->nrows, + " spd->nrows * 5 # of DIMM Banks *"); + printf("%-3d : %02x %s\n", 6, spd->dataw_lsb, + " spd->dataw_lsb, * 6 Data Width lsb of this assembly *"); + printf("%-3d : %02x %s\n", 7, spd->dataw_msb, + " spd->dataw_msb, * 7 Data Width msb of this assembly *"); + printf("%-3d : %02x %s\n", 8, spd->voltage, + " spd->voltage, * 8 Voltage intf std of this assembly *"); + printf("%-3d : %02x %s\n", 9, spd->clk_cycle, + " spd->clk_cycle, * 9 SDRAM Cycle time at CL=X *"); + printf("%-3d : %02x %s\n", 10, spd->clk_access, + " spd->clk_access, * 10 SDRAM Access from Clock at CL=X *"); + printf("%-3d : %02x %s\n", 11, spd->config, + " spd->config, * 11 DIMM Configuration type *"); + printf("%-3d : %02x %s\n", 12, spd->refresh, + " spd->refresh, * 12 Refresh Rate/Type *"); + printf("%-3d : %02x %s\n", 13, spd->primw, + " spd->primw, * 13 Primary SDRAM Width *"); + printf("%-3d : %02x %s\n", 14, spd->ecw, + " spd->ecw, * 14 Error Checking SDRAM width *"); + printf("%-3d : %02x %s\n", 15, spd->min_delay, + " spd->min_delay, * 15 Back to Back Random Access *"); + printf("%-3d : %02x %s\n", 16, spd->burstl, + " spd->burstl, * 16 Burst Lengths Supported *"); + printf("%-3d : %02x %s\n", 17, spd->nbanks, + " spd->nbanks, * 17 # of Banks on Each SDRAM Device *"); + printf("%-3d : %02x %s\n", 18, spd->cas_lat, + " spd->cas_lat, * 18 CAS# Latencies Supported *"); + printf("%-3d : %02x %s\n", 19, spd->cs_lat, + " spd->cs_lat, * 19 Chip Select Latency *"); + printf("%-3d : %02x %s\n", 20, spd->write_lat, + " spd->write_lat, * 20 Write Latency/Recovery *"); + printf("%-3d : %02x %s\n", 21, spd->mod_attr, + " spd->mod_attr, * 21 SDRAM Module Attributes *"); + printf("%-3d : %02x %s\n", 22, spd->dev_attr, + " spd->dev_attr, * 22 SDRAM Device Attributes *"); + printf("%-3d : %02x %s\n", 23, spd->clk_cycle2, + " spd->clk_cycle2, * 23 Min SDRAM Cycle time at CL=X-1 *"); + printf("%-3d : %02x %s\n", 24, spd->clk_access2, + " spd->clk_access2, * 24 SDRAM Access from Clock at CL=X-1 *"); + printf("%-3d : %02x %s\n", 25, spd->clk_cycle3, + " spd->clk_cycle3, * 25 Min SDRAM Cycle time at CL=X-2 *"); + printf("%-3d : %02x %s\n", 26, spd->clk_access3, + " spd->clk_access3, * 26 Max Access from Clock at CL=X-2 *"); + printf("%-3d : %02x %s\n", 27, spd->trp, + " spd->trp, * 27 Min Row Precharge Time (tRP)*"); + printf("%-3d : %02x %s\n", 28, spd->trrd, + " spd->trrd, * 28 Min Row Active to Row Active (tRRD) *"); + printf("%-3d : %02x %s\n", 29, spd->trcd, + " spd->trcd, * 29 Min RAS to CAS Delay (tRCD) *"); + printf("%-3d : %02x %s\n", 30, spd->tras, + " spd->tras, * 30 Minimum RAS Pulse Width (tRAS) *"); + printf("%-3d : %02x %s\n", 31, spd->bank_dens, + " spd->bank_dens, * 31 Density of each bank on module *"); + printf("%-3d : %02x %s\n", 32, spd->ca_setup, + " spd->ca_setup, * 32 Cmd + Addr signal input setup time *"); + printf("%-3d : %02x %s\n", 33, spd->ca_hold, + " spd->ca_hold, * 33 Cmd and Addr signal input hold time *"); + printf("%-3d : %02x %s\n", 34, spd->data_setup, + " spd->data_setup, * 34 Data signal input setup time *"); + printf("%-3d : %02x %s\n", 35, spd->data_hold, + " spd->data_hold, * 35 Data signal input hold time *"); + printf("%-3d : %02x %s\n", 36, spd->res_36_40[0], + " spd->res_36_40[0], * 36 Reserved / tWR *"); + printf("%-3d : %02x %s\n", 37, spd->res_36_40[1], + " spd->res_36_40[1], * 37 Reserved / tWTR *"); + printf("%-3d : %02x %s\n", 38, spd->res_36_40[2], + " spd->res_36_40[2], * 38 Reserved / tRTP *"); + printf("%-3d : %02x %s\n", 39, spd->res_36_40[3], + " spd->res_36_40[3], * 39 Reserved / mem_probe *"); + printf("%-3d : %02x %s\n", 40, spd->res_36_40[4], + " spd->res_36_40[4], * 40 Reserved / trc,trfc extensions *"); + printf("%-3d : %02x %s\n", 41, spd->trc, + " spd->trc, * 41 Min Active to Auto refresh time tRC *"); + printf("%-3d : %02x %s\n", 42, spd->trfc, + " spd->trfc, * 42 Min Auto to Active period tRFC *"); + printf("%-3d : %02x %s\n", 43, spd->tckmax, + " spd->tckmax, * 43 Max device cycle time tCKmax *"); + printf("%-3d : %02x %s\n", 44, spd->tdqsq, + " spd->tdqsq, * 44 Max DQS to DQ skew *"); + printf("%-3d : %02x %s\n", 45, spd->tqhs, + " spd->tqhs, * 45 Max Read DataHold skew tQHS *"); + printf("%-3d : %02x %s\n", 46, spd->res_46, + " spd->res_46, * 46 Reserved/ PLL Relock time *"); + printf("%-3d : %02x %s\n", 47, spd->dimm_height, + " spd->dimm_height * 47 SDRAM DIMM Height *"); + + printf("%-3d-%3d: ", 48, 61); + + for (i = 0; i < 14; i++) + printf("%02x", spd->res_48_61[i]); + + printf(" * 48-61 IDD in SPD and Reserved space *\n"); + + printf("%-3d : %02x %s\n", 62, spd->spd_rev, + " spd->spd_rev, * 62 SPD Data Revision Code *"); + printf("%-3d : %02x %s\n", 63, spd->cksum, + " spd->cksum, * 63 Checksum for bytes 0-62 *"); + printf("%-3d-%3d: ", 64, 71); + + for (i = 0; i < 8; i++) + printf("%02x", spd->mid[i]); + + printf("* 64 Mfr's JEDEC ID code per JEP-108E *\n"); + printf("%-3d : %02x %s\n", 72, spd->mloc, + " spd->mloc, * 72 Manufacturing Location *"); + + printf("%-3d-%3d: >>", 73, 90); + + for (i = 0; i < 18; i++) + printf("%c", spd->mpart[i]); + + printf("<<* 73 Manufacturer's Part Number *\n"); + + printf("%-3d-%3d: %02x %02x %s\n", 91, 92, spd->rev[0], spd->rev[1], + "* 91 Revision Code *"); + printf("%-3d-%3d: %02x %02x %s\n", 93, 94, spd->mdate[0], spd->mdate[1], + "* 93 Manufacturing Date *"); + printf("%-3d-%3d: ", 95, 98); + + for (i = 0; i < 4; i++) + printf("%02x", spd->sernum[i]); + + printf("* 95 Assembly Serial Number *\n"); + + printf("%-3d-%3d: ", 99, 127); + + for (i = 0; i < 27; i++) + printf("%02x", spd->mspec[i]); + + printf("* 99 Manufacturer Specific Data *\n"); +} +#endif + +#ifdef CONFIG_FSL_DDR2 +void ddr2_spd_dump(const ddr2_spd_eeprom_t *spd) +{ + unsigned int i; + + printf("%-3d : %02x %s\n", 0, spd->info_size, + " spd->info_size, * 0 # bytes written into serial memory *"); + printf("%-3d : %02x %s\n", 1, spd->chip_size, + " spd->chip_size, * 1 Total # bytes of SPD memory device *"); + printf("%-3d : %02x %s\n", 2, spd->mem_type, + " spd->mem_type, * 2 Fundamental memory type *"); + printf("%-3d : %02x %s\n", 3, spd->nrow_addr, + " spd->nrow_addr, * 3 # of Row Addresses on this assembly *"); + printf("%-3d : %02x %s\n", 4, spd->ncol_addr, + " spd->ncol_addr, * 4 # of Column Addrs on this assembly *"); + printf("%-3d : %02x %s\n", 5, spd->mod_ranks, + " spd->mod_ranks * 5 # of Module Rows on this assembly *"); + printf("%-3d : %02x %s\n", 6, spd->dataw, + " spd->dataw, * 6 Data Width of this assembly *"); + printf("%-3d : %02x %s\n", 7, spd->res_7, + " spd->res_7, * 7 Reserved *"); + printf("%-3d : %02x %s\n", 8, spd->voltage, + " spd->voltage, * 8 Voltage intf std of this assembly *"); + printf("%-3d : %02x %s\n", 9, spd->clk_cycle, + " spd->clk_cycle, * 9 SDRAM Cycle time at CL=X *"); + printf("%-3d : %02x %s\n", 10, spd->clk_access, + " spd->clk_access, * 10 SDRAM Access from Clock at CL=X *"); + printf("%-3d : %02x %s\n", 11, spd->config, + " spd->config, * 11 DIMM Configuration type *"); + printf("%-3d : %02x %s\n", 12, spd->refresh, + " spd->refresh, * 12 Refresh Rate/Type *"); + printf("%-3d : %02x %s\n", 13, spd->primw, + " spd->primw, * 13 Primary SDRAM Width *"); + printf("%-3d : %02x %s\n", 14, spd->ecw, + " spd->ecw, * 14 Error Checking SDRAM width *"); + printf("%-3d : %02x %s\n", 15, spd->res_15, + " spd->res_15, * 15 Reserved *"); + printf("%-3d : %02x %s\n", 16, spd->burstl, + " spd->burstl, * 16 Burst Lengths Supported *"); + printf("%-3d : %02x %s\n", 17, spd->nbanks, + " spd->nbanks, * 17 # of Banks on Each SDRAM Device *"); + printf("%-3d : %02x %s\n", 18, spd->cas_lat, + " spd->cas_lat, * 18 CAS# Latencies Supported *"); + printf("%-3d : %02x %s\n", 19, spd->mech_char, + " spd->mech_char, * 19 Mechanical Characteristics *"); + printf("%-3d : %02x %s\n", 20, spd->dimm_type, + " spd->dimm_type, * 20 DIMM type *"); + printf("%-3d : %02x %s\n", 21, spd->mod_attr, + " spd->mod_attr, * 21 SDRAM Module Attributes *"); + printf("%-3d : %02x %s\n", 22, spd->dev_attr, + " spd->dev_attr, * 22 SDRAM Device Attributes *"); + printf("%-3d : %02x %s\n", 23, spd->clk_cycle2, + " spd->clk_cycle2, * 23 Min SDRAM Cycle time at CL=X-1 *"); + printf("%-3d : %02x %s\n", 24, spd->clk_access2, + " spd->clk_access2, * 24 SDRAM Access from Clock at CL=X-1 *"); + printf("%-3d : %02x %s\n", 25, spd->clk_cycle3, + " spd->clk_cycle3, * 25 Min SDRAM Cycle time at CL=X-2 *"); + printf("%-3d : %02x %s\n", 26, spd->clk_access3, + " spd->clk_access3, * 26 Max Access from Clock at CL=X-2 *"); + printf("%-3d : %02x %s\n", 27, spd->trp, + " spd->trp, * 27 Min Row Precharge Time (tRP)*"); + printf("%-3d : %02x %s\n", 28, spd->trrd, + " spd->trrd, * 28 Min Row Active to Row Active (tRRD) *"); + printf("%-3d : %02x %s\n", 29, spd->trcd, + " spd->trcd, * 29 Min RAS to CAS Delay (tRCD) *"); + printf("%-3d : %02x %s\n", 30, spd->tras, + " spd->tras, * 30 Minimum RAS Pulse Width (tRAS) *"); + printf("%-3d : %02x %s\n", 31, spd->rank_dens, + " spd->rank_dens, * 31 Density of each rank on module *"); + printf("%-3d : %02x %s\n", 32, spd->ca_setup, + " spd->ca_setup, * 32 Cmd + Addr signal input setup time *"); + printf("%-3d : %02x %s\n", 33, spd->ca_hold, + " spd->ca_hold, * 33 Cmd and Addr signal input hold time *"); + printf("%-3d : %02x %s\n", 34, spd->data_setup, + " spd->data_setup, * 34 Data signal input setup time *"); + printf("%-3d : %02x %s\n", 35, spd->data_hold, + " spd->data_hold, * 35 Data signal input hold time *"); + printf("%-3d : %02x %s\n", 36, spd->twr, + " spd->twr, * 36 Write Recovery time tWR *"); + printf("%-3d : %02x %s\n", 37, spd->twtr, + " spd->twtr, * 37 Int write to read delay tWTR *"); + printf("%-3d : %02x %s\n", 38, spd->trtp, + " spd->trtp, * 38 Int read to precharge delay tRTP *"); + printf("%-3d : %02x %s\n", 39, spd->mem_probe, + " spd->mem_probe, * 39 Mem analysis probe characteristics *"); + printf("%-3d : %02x %s\n", 40, spd->trctrfc_ext, + " spd->trctrfc_ext, * 40 Extensions to trc and trfc *"); + printf("%-3d : %02x %s\n", 41, spd->trc, + " spd->trc, * 41 Min Active to Auto refresh time tRC *"); + printf("%-3d : %02x %s\n", 42, spd->trfc, + " spd->trfc, * 42 Min Auto to Active period tRFC *"); + printf("%-3d : %02x %s\n", 43, spd->tckmax, + " spd->tckmax, * 43 Max device cycle time tCKmax *"); + printf("%-3d : %02x %s\n", 44, spd->tdqsq, + " spd->tdqsq, * 44 Max DQS to DQ skew *"); + printf("%-3d : %02x %s\n", 45, spd->tqhs, + " spd->tqhs, * 45 Max Read DataHold skew tQHS *"); + printf("%-3d : %02x %s\n", 46, spd->pll_relock, + " spd->pll_relock, * 46 PLL Relock time *"); + printf("%-3d : %02x %s\n", 47, spd->Tcasemax, + " spd->Tcasemax, * 47 Tcasemax *"); + printf("%-3d : %02x %s\n", 48, spd->psiTAdram, + " spd->psiTAdram, * 48 Thermal Resistance of DRAM Package " + "from Top (Case) to Ambient (Psi T-A DRAM) *"); + printf("%-3d : %02x %s\n", 49, spd->dt0_mode, + " spd->dt0_mode, * 49 DRAM Case Temperature Rise from " + "Ambient due to Activate-Precharge/Mode Bits " + "(DT0/Mode Bits) *)"); + printf("%-3d : %02x %s\n", 50, spd->dt2n_dt2q, + " spd->dt2n_dt2q, * 50 DRAM Case Temperature Rise from " + "Ambient due to Precharge/Quiet Standby " + "(DT2N/DT2Q) *"); + printf("%-3d : %02x %s\n", 51, spd->dt2p, + " spd->dt2p, * 51 DRAM Case Temperature Rise from " + "Ambient due to Precharge Power-Down (DT2P) *"); + printf("%-3d : %02x %s\n", 52, spd->dt3n, + " spd->dt3n, * 52 DRAM Case Temperature Rise from " + "Ambient due to Active Standby (DT3N) *"); + printf("%-3d : %02x %s\n", 53, spd->dt3pfast, + " spd->dt3pfast, * 53 DRAM Case Temperature Rise from " + "Ambient due to Active Power-Down with Fast PDN Exit " + "(DT3Pfast) *"); + printf("%-3d : %02x %s\n", 54, spd->dt3pslow, + " spd->dt3pslow, * 54 DRAM Case Temperature Rise from " + "Ambient due to Active Power-Down with Slow PDN Exit " + "(DT3Pslow) *"); + printf("%-3d : %02x %s\n", 55, spd->dt4r_dt4r4w, + " spd->dt4r_dt4r4w, * 55 DRAM Case Temperature Rise from " + "Ambient due to Page Open Burst Read/DT4R4W Mode Bit " + "(DT4R/DT4R4W Mode Bit) *"); + printf("%-3d : %02x %s\n", 56, spd->dt5b, + " spd->dt5b, * 56 DRAM Case Temperature Rise from " + "Ambient due to Burst Refresh (DT5B) *"); + printf("%-3d : %02x %s\n", 57, spd->dt7, + " spd->dt7, * 57 DRAM Case Temperature Rise from " + "Ambient due to Bank Interleave Reads with " + "Auto-Precharge (DT7) *"); + printf("%-3d : %02x %s\n", 58, spd->psiTApll, + " spd->psiTApll, * 58 Thermal Resistance of PLL Package form" + " Top (Case) to Ambient (Psi T-A PLL) *"); + printf("%-3d : %02x %s\n", 59, spd->psiTAreg, + " spd->psiTAreg, * 59 Thermal Reisitance of Register Package" + " from Top (Case) to Ambient (Psi T-A Register) *"); + printf("%-3d : %02x %s\n", 60, spd->dtpllactive, + " spd->dtpllactive, * 60 PLL Case Temperature Rise from " + "Ambient due to PLL Active (DT PLL Active) *"); + printf("%-3d : %02x %s\n", 61, spd->dtregact, + " spd->dtregact, " + "* 61 Register Case Temperature Rise from Ambient due to " + "Register Active/Mode Bit (DT Register Active/Mode Bit) *"); + printf("%-3d : %02x %s\n", 62, spd->spd_rev, + " spd->spd_rev, * 62 SPD Data Revision Code *"); + printf("%-3d : %02x %s\n", 63, spd->cksum, + " spd->cksum, * 63 Checksum for bytes 0-62 *"); + + printf("%-3d-%3d: ", 64, 71); + + for (i = 0; i < 8; i++) + printf("%02x", spd->mid[i]); + + printf("* 64 Mfr's JEDEC ID code per JEP-108E *\n"); + + printf("%-3d : %02x %s\n", 72, spd->mloc, + " spd->mloc, * 72 Manufacturing Location *"); + + printf("%-3d-%3d: >>", 73, 90); + for (i = 0; i < 18; i++) + printf("%c", spd->mpart[i]); + + + printf("<<* 73 Manufacturer's Part Number *\n"); + + printf("%-3d-%3d: %02x %02x %s\n", 91, 92, spd->rev[0], spd->rev[1], + "* 91 Revision Code *"); + printf("%-3d-%3d: %02x %02x %s\n", 93, 94, spd->mdate[0], spd->mdate[1], + "* 93 Manufacturing Date *"); + printf("%-3d-%3d: ", 95, 98); + + for (i = 0; i < 4; i++) + printf("%02x", spd->sernum[i]); + + printf("* 95 Assembly Serial Number *\n"); + + printf("%-3d-%3d: ", 99, 127); + for (i = 0; i < 27; i++) + printf("%02x", spd->mspec[i]); + + + printf("* 99 Manufacturer Specific Data *\n"); +} +#endif + +#ifdef CONFIG_FSL_DDR3 +void ddr3_spd_dump(const ddr3_spd_eeprom_t *spd) +{ + unsigned int i; + + /* General Section: Bytes 0-59 */ + +#define PRINT_NXS(x, y, z...) printf("%-3d : %02x " z "\n", x, y); +#define PRINT_NNXXS(n0, n1, x0, x1, s) \ + printf("%-3d-%3d: %02x %02x " s "\n", n0, n1, x0, x1); + + PRINT_NXS(0, spd->info_size_crc, + "info_size_crc bytes written into serial memory, " + "CRC coverage"); + PRINT_NXS(1, spd->spd_rev, + "spd_rev SPD Revision"); + PRINT_NXS(2, spd->mem_type, + "mem_type Key Byte / DRAM Device Type"); + PRINT_NXS(3, spd->module_type, + "module_type Key Byte / Module Type"); + PRINT_NXS(4, spd->density_banks, + "density_banks SDRAM Density and Banks"); + PRINT_NXS(5, spd->addressing, + "addressing SDRAM Addressing"); + PRINT_NXS(6, spd->module_vdd, + "module_vdd Module Nominal Voltage, VDD"); + PRINT_NXS(7, spd->organization, + "organization Module Organization"); + PRINT_NXS(8, spd->bus_width, + "bus_width Module Memory Bus Width"); + PRINT_NXS(9, spd->ftb_div, + "ftb_div Fine Timebase (FTB) Dividend / Divisor"); + PRINT_NXS(10, spd->mtb_dividend, + "mtb_dividend Medium Timebase (MTB) Dividend"); + PRINT_NXS(11, spd->mtb_divisor, + "mtb_divisor Medium Timebase (MTB) Divisor"); + PRINT_NXS(12, spd->tCK_min, + "tCK_min SDRAM Minimum Cycle Time"); + PRINT_NXS(13, spd->res_13, + "res_13 Reserved"); + PRINT_NXS(14, spd->caslat_lsb, + "caslat_lsb CAS Latencies Supported, LSB"); + PRINT_NXS(15, spd->caslat_msb, + "caslat_msb CAS Latencies Supported, MSB"); + PRINT_NXS(16, spd->tAA_min, + "tAA_min Min CAS Latency Time"); + PRINT_NXS(17, spd->tWR_min, + "tWR_min Min Write REcovery Time"); + PRINT_NXS(18, spd->tRCD_min, + "tRCD_min Min RAS# to CAS# Delay Time"); + PRINT_NXS(19, spd->tRRD_min, + "tRRD_min Min Row Active to Row Active Delay Time"); + PRINT_NXS(20, spd->tRP_min, + "tRP_min Min Row Precharge Delay Time"); + PRINT_NXS(21, spd->tRAS_tRC_ext, + "tRAS_tRC_ext Upper Nibbles for tRAS and tRC"); + PRINT_NXS(22, spd->tRAS_min_lsb, + "tRAS_min_lsb Min Active to Precharge Delay Time, LSB"); + PRINT_NXS(23, spd->tRC_min_lsb, + "tRC_min_lsb Min Active to Active/Refresh Delay Time, LSB"); + PRINT_NXS(24, spd->tRFC_min_lsb, + "tRFC_min_lsb Min Refresh Recovery Delay Time LSB"); + PRINT_NXS(25, spd->tRFC_min_msb, + "tRFC_min_msb Min Refresh Recovery Delay Time MSB"); + PRINT_NXS(26, spd->tWTR_min, + "tWTR_min Min Internal Write to Read Command Delay Time"); + PRINT_NXS(27, spd->tRTP_min, + "tRTP_min " + "Min Internal Read to Precharge Command Delay Time"); + PRINT_NXS(28, spd->tFAW_msb, + "tFAW_msb Upper Nibble for tFAW"); + PRINT_NXS(29, spd->tFAW_min, + "tFAW_min Min Four Activate Window Delay Time"); + PRINT_NXS(30, spd->opt_features, + "opt_features SDRAM Optional Features"); + PRINT_NXS(31, spd->therm_ref_opt, + "therm_ref_opt SDRAM Thermal and Refresh Opts"); + PRINT_NXS(32, spd->therm_sensor, + "therm_sensor SDRAM Thermal Sensor"); + PRINT_NXS(33, spd->device_type, + "device_type SDRAM Device Type"); + + printf("%-3d-%3d: ", 34, 59); /* Reserved, General Section */ + + for (i = 34; i <= 59; i++) + printf("%02x ", spd->res_34_59[i - 34]); + + puts("\n"); + + switch (spd->module_type) { + case 0x02: /* UDIMM */ + case 0x03: /* SO-DIMM */ + case 0x04: /* Micro-DIMM */ + case 0x06: /* Mini-UDIMM */ + PRINT_NXS(60, spd->mod_section.unbuffered.mod_height, + "mod_height (Unbuffered) Module Nominal Height"); + PRINT_NXS(61, spd->mod_section.unbuffered.mod_thickness, + "mod_thickness (Unbuffered) Module Maximum Thickness"); + PRINT_NXS(62, spd->mod_section.unbuffered.ref_raw_card, + "ref_raw_card (Unbuffered) Reference Raw Card Used"); + PRINT_NXS(63, spd->mod_section.unbuffered.addr_mapping, + "addr_mapping (Unbuffered) Address mapping from " + "Edge Connector to DRAM"); + break; + case 0x01: /* RDIMM */ + case 0x05: /* Mini-RDIMM */ + PRINT_NXS(60, spd->mod_section.registered.mod_height, + "mod_height (Registered) Module Nominal Height"); + PRINT_NXS(61, spd->mod_section.registered.mod_thickness, + "mod_thickness (Registered) Module Maximum Thickness"); + PRINT_NXS(62, spd->mod_section.registered.ref_raw_card, + "ref_raw_card (Registered) Reference Raw Card Used"); + PRINT_NXS(63, spd->mod_section.registered.modu_attr, + "modu_attr (Registered) DIMM Module Attributes"); + PRINT_NXS(64, spd->mod_section.registered.thermal, + "thermal (Registered) Thermal Heat " + "Spreader Solution"); + PRINT_NXS(65, spd->mod_section.registered.reg_id_lo, + "reg_id_lo (Registered) Register Manufacturer ID " + "Code, LSB"); + PRINT_NXS(66, spd->mod_section.registered.reg_id_hi, + "reg_id_hi (Registered) Register Manufacturer ID " + "Code, MSB"); + PRINT_NXS(67, spd->mod_section.registered.reg_rev, + "reg_rev (Registered) Register " + "Revision Number"); + PRINT_NXS(68, spd->mod_section.registered.reg_type, + "reg_type (Registered) Register Type"); + for (i = 69; i <= 76; i++) { + printf("%-3d : %02x rcw[%d]\n", i, + spd->mod_section.registered.rcw[i-69], i-69); + } + break; + default: + /* Module-specific Section, Unsupported Module Type */ + printf("%-3d-%3d: ", 60, 116); + + for (i = 60; i <= 116; i++) + printf("%02x", spd->mod_section.uc[i - 60]); + + break; + } + + /* Unique Module ID: Bytes 117-125 */ + PRINT_NXS(117, spd->mmid_lsb, "Module MfgID Code LSB - JEP-106"); + PRINT_NXS(118, spd->mmid_msb, "Module MfgID Code MSB - JEP-106"); + PRINT_NXS(119, spd->mloc, "Mfg Location"); + PRINT_NNXXS(120, 121, spd->mdate[0], spd->mdate[1], "Mfg Date"); + + printf("%-3d-%3d: ", 122, 125); + + for (i = 122; i <= 125; i++) + printf("%02x ", spd->sernum[i - 122]); + printf(" Module Serial Number\n"); + + /* CRC: Bytes 126-127 */ + PRINT_NNXXS(126, 127, spd->crc[0], spd->crc[1], " SPD CRC"); + + /* Other Manufacturer Fields and User Space: Bytes 128-255 */ + printf("%-3d-%3d: ", 128, 145); + for (i = 128; i <= 145; i++) + printf("%02x ", spd->mpart[i - 128]); + printf(" Mfg's Module Part Number\n"); + + PRINT_NNXXS(146, 147, spd->mrev[0], spd->mrev[1], + "Module Revision code"); + + PRINT_NXS(148, spd->dmid_lsb, "DRAM MfgID Code LSB - JEP-106"); + PRINT_NXS(149, spd->dmid_msb, "DRAM MfgID Code MSB - JEP-106"); + + printf("%-3d-%3d: ", 150, 175); + for (i = 150; i <= 175; i++) + printf("%02x ", spd->msd[i - 150]); + printf(" Mfg's Specific Data\n"); + + printf("%-3d-%3d: ", 176, 255); + for (i = 176; i <= 255; i++) + printf("%02x", spd->cust[i - 176]); + printf(" Mfg's Specific Data\n"); + +} +#endif + +static inline void generic_spd_dump(const generic_spd_eeprom_t *spd) +{ +#if defined(CONFIG_FSL_DDR1) + ddr1_spd_dump(spd); +#elif defined(CONFIG_FSL_DDR2) + ddr2_spd_dump(spd); +#elif defined(CONFIG_FSL_DDR3) + ddr3_spd_dump(spd); +#endif +} + +static void fsl_ddr_printinfo(const fsl_ddr_info_t *pinfo, + unsigned int ctrl_mask, + unsigned int dimm_mask, + unsigned int do_mask) +{ + unsigned int i, j, retval; + + /* STEP 1: DIMM SPD data */ + if (do_mask & STEP_GET_SPD) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + if (!(dimm_mask & (1 << j))) + continue; + + printf("SPD info: Controller=%u " + "DIMM=%u\n", i, j); + generic_spd_dump( + &(pinfo->spd_installed_dimms[i][j])); + printf("\n"); + } + printf("\n"); + } + printf("\n"); + } + + /* STEP 2: DIMM Parameters */ + if (do_mask & STEP_COMPUTE_DIMM_PARMS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + if (!(dimm_mask & (1 << j))) + continue; + printf("DIMM parameters: Controller=%u " + "DIMM=%u\n", i, j); + print_dimm_parameters( + &(pinfo->dimm_params[i][j])); + printf("\n"); + } + printf("\n"); + } + printf("\n"); + } + + /* STEP 3: Common Parameters */ + if (do_mask & STEP_COMPUTE_COMMON_PARMS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + printf(""lowest common" DIMM parameters: " + "Controller=%u\n", i); + print_lowest_common_dimm_parameters( + &pinfo->common_timing_params[i]); + printf("\n"); + } + printf("\n"); + } + + /* STEP 4: User Configuration Options */ + if (do_mask & STEP_GATHER_OPTS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + printf("User Config Options: Controller=%u\n", i); + print_memctl_options(&pinfo->memctl_opts[i]); + printf("\n"); + } + printf("\n"); + } + + /* STEP 5: Address assignment */ + if (do_mask & STEP_ASSIGN_ADDRESSES) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + printf("Address Assignment: Controller=%u " + "DIMM=%u\n", i, j); + printf("Don't have this functionality yet\n"); + } + printf("\n"); + } + printf("\n"); + } + + /* STEP 6: computed controller register values */ + if (do_mask & STEP_COMPUTE_REGS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + printf("Computed Register Values: Controller=%u\n", i); + print_fsl_memctl_config_regs( + &pinfo->fsl_ddr_config_reg[i]); + retval = check_fsl_memctl_config_regs( + &pinfo->fsl_ddr_config_reg[i]); + if (retval) { + printf("check_fsl_memctl_config_regs " + "result = %u\n", retval); + } + printf("\n"); + } + printf("\n"); + } +} + +struct data_strings { + const char *data_name; + unsigned int step_mask; + unsigned int dimm_number_required; +}; + +#define DATA_OPTIONS(name, step, dimm) {#name, step, dimm} + +unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo) +{ + unsigned long long ddrsize; + const char *prompt = "FSL DDR>"; + unsigned int len; + char buffer[CONFIG_SYS_CBSIZE]; + char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ + int argc; + unsigned int next_step = STEP_GET_SPD; + static const struct data_strings options[] = { + DATA_OPTIONS(spd, STEP_GET_SPD, 1), + DATA_OPTIONS(dimmparms, STEP_COMPUTE_DIMM_PARMS, 1), + DATA_OPTIONS(commonparms, STEP_COMPUTE_COMMON_PARMS, 0), + DATA_OPTIONS(opts, STEP_GATHER_OPTS, 0), + DATA_OPTIONS(addresses, STEP_ASSIGN_ADDRESSES, 0), + DATA_OPTIONS(regs, STEP_COMPUTE_REGS, 0), + }; + static const unsigned int n_opts = ARRAY_SIZE(options); + const char *usage = { + "commands:\n" + "print print SPD and intermediate computed data\n" + "reset reboot machine\n" + "recompute reload SPD and options to default and recompute regs\n" + "edit modify spd, parameter, or option\n" + "compute recompute registers from current next_step to end\n" + "next_step shows current next_step\n" + "help this message\n" + "go program the memory controller and continue with u-boot\n" + }; + + /* + * The strategy for next_step is that it points to the next + * step in the computation process that needs to be done. + */ + while (1) { + /* + * No need to worry for buffer overflow here in + * this function; readline() maxes out at CFG_CBSIZE + */ + len = readline_into_buffer(prompt, buffer); + argc = parse_line(buffer, argv); + if (argc == 0) + continue; + + + if (strcmp(argv[0], "help") == 0) { + puts(usage); + continue; + } + + if (strcmp(argv[0], "next_step") == 0) { + printf("next_step = 0x%02X (%s)\n", + next_step, + step_to_string(next_step)); + continue; + } + + if (strcmp(argv[0], "edit") == 0) { + unsigned int i, j; + unsigned int error = 0; + unsigned int step_mask = 0; + unsigned int ctlr_mask = 0; + unsigned int dimm_mask = 0; + char *p_element = NULL; + char *p_value = NULL; + unsigned int dimm_number_required = 0; + unsigned int ctrl_num; + unsigned int dimm_num; + unsigned int matched = 0; + + if (argc == 1) { + /* Only the element and value must be last */ + printf("edit <c#> <d#> " + "<spd|dimmparms|commonparms|opts|" + "addresses|regs> <element> <value>\n"); + printf("for spd, specify byte number for " + "element\n"); + continue; + } + + for (i = 1; i < argc - 2; i++) { + for (j = 0; j < n_opts; j++) { + if (strcmp(options[j].data_name, + argv[i]) != 0) + continue; + step_mask |= options[j].step_mask; + dimm_number_required = + options[j].dimm_number_required; + matched = 1; + break; + } + + if (matched) + continue; + + if (argv[i][0] == 'c') { + char c = argv[i][1]; + if (isdigit(c)) + ctlr_mask |= 1 << (c - '0'); + continue; + } + + if (argv[i][0] == 'd') { + char c = argv[i][1]; + if (isdigit(c)) + dimm_mask |= 1 << (c - '0'); + continue; + } + + printf("unknown arg %s\n", argv[i]); + step_mask = 0; + error = 1; + break; + } + + + if (error) + continue; + + + /* Check arguments */ + + /* ERROR: If no steps were found */ + if (step_mask == 0) { + printf("Error: No valid steps were specified " + "in argument.\n"); + continue; + } + + /* ERROR: If multiple steps were found */ + if (step_mask & (step_mask - 1)) { + printf("Error: Multiple steps specified in " + "argument.\n"); + continue; + } + + /* ERROR: Controller not specified */ + if (ctlr_mask == 0) { + printf("Error: controller number not " + "specified or no element and " + "value specified\n"); + continue; + } + + if (ctlr_mask & (ctlr_mask - 1)) { + printf("Error: multiple controllers " + "specified, %X\n", ctlr_mask); + continue; + } + + /* ERROR: DIMM number not specified */ + if (dimm_number_required && dimm_mask == 0) { + printf("Error: DIMM number number not " + "specified or no element and " + "value specified\n"); + continue; + } + + if (dimm_mask & (dimm_mask - 1)) { + printf("Error: multipled DIMMs specified\n"); + continue; + } + + p_element = argv[argc - 2]; + p_value = argv[argc - 1]; + + ctrl_num = __ilog2(ctlr_mask); + dimm_num = __ilog2(dimm_mask); + + switch (step_mask) { + case STEP_GET_SPD: + { + unsigned int element_num; + unsigned int value; + + element_num = simple_strtoul(p_element, + NULL, 0); + value = simple_strtoul(p_value, + NULL, 0); + fsl_ddr_spd_edit(pinfo, + ctrl_num, + dimm_num, + element_num, + value); + next_step = STEP_COMPUTE_DIMM_PARMS; + } + break; + + case STEP_COMPUTE_DIMM_PARMS: + fsl_ddr_dimm_parameters_edit( + pinfo, ctrl_num, dimm_num, + p_element, p_value); + next_step = STEP_COMPUTE_COMMON_PARMS; + break; + + case STEP_COMPUTE_COMMON_PARMS: + lowest_common_dimm_parameters_edit(pinfo, + ctrl_num, p_element, p_value); + next_step = STEP_GATHER_OPTS; + break; + + case STEP_GATHER_OPTS: + fsl_ddr_options_edit(pinfo, ctrl_num, + p_element, p_value); + next_step = STEP_ASSIGN_ADDRESSES; + break; + + case STEP_ASSIGN_ADDRESSES: + printf("editing of address assignment " + "not yet implemented\n"); + break; + + case STEP_COMPUTE_REGS: + { + fsl_ddr_regs_edit(pinfo, + ctrl_num, + p_element, + p_value); + next_step = STEP_PROGRAM_REGS; + } + break; + + default: + printf("programming error\n"); + while (1) + ; + break; + } + continue; + } + + if (strcmp(argv[0], "reset") == 0) { + /* + * Reboot machine. + * Args don't seem to matter because this + * doesn't return + */ + do_reset(NULL, 0, 0, NULL); + } + + if (strcmp(argv[0], "recompute") == 0) { + /* + * Recalculate everything, starting with + * loading SPD EEPROM from DIMMs + */ + next_step = STEP_GET_SPD; + ddrsize = fsl_ddr_compute(pinfo, next_step, 0); + continue; + } + + if (strcmp(argv[0], "compute") == 0) { + /* + * Compute rest of steps starting at + * the current next_step/ + */ + ddrsize = fsl_ddr_compute(pinfo, next_step, 0); + continue; + } + + if (strcmp(argv[0], "print") == 0) { + unsigned int i, j; + unsigned int error = 0; + unsigned int step_mask = 0; + unsigned int ctlr_mask = 0; + unsigned int dimm_mask = 0; + unsigned int matched = 0; + + if (argc == 1) { + printf("print [c<n>] [d<n>] [spd] [dimmparms] " + "[commonparms] [opts] [addresses] [regs]\n"); + continue; + } + + for (i = 1; i < argc; i++) { + for (j = 0; j < n_opts; j++) { + if (strcmp(options[j].data_name, + argv[i]) != 0) + continue; + step_mask |= options[j].step_mask; + matched = 1; + break; + } + + if (matched) + continue; + + if (argv[i][0] == 'c') { + char c = argv[i][1]; + if (isdigit(c)) + ctlr_mask |= 1 << (c - '0'); + continue; + } + + if (argv[i][0] == 'd') { + char c = argv[i][1]; + if (isdigit(c)) + dimm_mask |= 1 << (c - '0'); + continue; + } + + printf("unknown arg %s\n", argv[i]); + step_mask = 0; + error = 1; + break; + } + + if (error) + continue; + + /* If no particular controller was found, print all */ + if (ctlr_mask == 0) + ctlr_mask = 0xFF; + + /* If no particular dimm was found, print all dimms. */ + if (dimm_mask == 0) + dimm_mask = 0xFF; + + /* If no steps were found, print all steps. */ + if (step_mask == 0) + step_mask = STEP_ALL; + + fsl_ddr_printinfo(pinfo, ctlr_mask, + dimm_mask, step_mask); + continue; + } + + if (strcmp(argv[0], "go") == 0) { + if (next_step) + ddrsize = fsl_ddr_compute(pinfo, next_step, 0); + break; + } + + printf("unknown command %s\n", argv[0]); + } + + debug("end of memory = %llu\n", (u64)ddrsize); + + return ddrsize; +} diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c index 5699b0c..f52ad9f 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c @@ -135,7 +135,6 @@ void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd, * | interleaving */
-#ifdef DEBUG const char *step_string_tbl[] = { "STEP_GET_SPD", "STEP_COMPUTE_DIMM_PARMS", @@ -156,7 +155,6 @@ const char * step_to_string(unsigned int step) {
return step_string_tbl[s]; } -#endif
int step_assign_addresses(fsl_ddr_info_t *pinfo, unsigned int dbw_cap_adj[], @@ -499,7 +497,12 @@ phys_size_t fsl_ddr_sdram(void) memset(&info, 0, sizeof(fsl_ddr_info_t));
/* Compute it once normally. */ - total_memory = fsl_ddr_compute(&info, STEP_GET_SPD, 0); +#ifdef CONFIG_FSL_DDR_INTERACTIVE + if (getenv("ddr_interactive")) + total_memory = fsl_ddr_interactive(&info); + else +#endif + total_memory = fsl_ddr_compute(&info, STEP_GET_SPD, 0);
/* Check for memory controller interleaving. */ memctl_interleaved = 0; diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr index abfb7f1..787c71b 100644 --- a/doc/README.fsl-ddr +++ b/doc/README.fsl-ddr @@ -222,3 +222,21 @@ Single slot system
Reference http://www.samsung.com/global/business/semiconductor/products/dram/downloads...
+ +Interactive DDR debugging +=========================== + +For DDR parameter tuning up and debugging, the interactive DDR debugging can +be activated by saving an environment variable "ddr_interactive". The value +doesn't matter. Once activated, U-boot prompts "FSL DDR>" before enabling DDR +controller. The available commands can be seen by typing "help". + +The example flow of using interactive debugging is +type command "compute" to calculate the parameters from the default +type command "print" with arguments to show SPD, options, registers +type command "edit" with arguments to change any if desired +type command "go" to continue calculation and enable DDR controller + +Note, check "next_step" to show the flow. For example, after editing registers, +DDR controller will be enabled with current setting without further +calculation.
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Interactive DDR debugging provides a user interface to view and modify SPD, DIMM parameters, board options and DDR controller registers before DDR is initialized. With this feature, developers can fine-tune DDR for board bringup and other debugging without frequently having to reprogram the flash.
To enable this feature, define CONFIG_FSL_DDR_INTERACTIVE in board header file and set an environment variable to activate it. Syntax:
setenv ddr_interactive on
After reset, U-boot prompts before initializing DDR controllers FSL DDR>
The available commands are print print SPD and intermediate computed data reset reboot machine recompute reload SPD and options to default and recompute regs edit modify spd, parameter, or option compute recompute registers from current next_step to end next_step shows current next_step help this message go program the memory controller and continue with u-boot
The first command should be "compute", which reads data from DIMM SPDs and board options, performs the calculation then stops before setting DDR controller. A user can use "print" and "edit" commands to view and modify anything. "Go" picks up from current step with any modification and compltes the calculation then enables the DDR controller to continue u-boot. "Recompute" does it over from fresh reading.
Signed-off-by: York Sun yorksun@freescale.com
arch/powerpc/cpu/mpc8xxx/ddr/Makefile | 3 +- arch/powerpc/cpu/mpc8xxx/ddr/ddr.h | 40 +- arch/powerpc/cpu/mpc8xxx/ddr/interactive.c | 1691 ++++++++++++++++++++++++++++ arch/powerpc/cpu/mpc8xxx/ddr/main.c | 9 +- doc/README.fsl-ddr | 18 + 5 files changed, 1744 insertions(+), 17 deletions(-) create mode 100644 arch/powerpc/cpu/mpc8xxx/ddr/interactive.c
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/Makefile b/arch/powe
Add to README the new CONFIG_FSL_DDR_INTERACTIVE define.
- k
On Aug 26, 2011, at 1:32 PM, York Sun wrote:
Check second DIMM slot in case the first one is empty. Honor DQS enable option for SDRAM mode register.
Signed-off-by: York Sun yorksun@freescale.com
arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c | 19 ++++++++++--------- arch/powerpc/include/asm/fsl_ddr_sdram.h | 4 ++++ 2 files changed, 14 insertions(+), 9 deletions(-)
applied to 85xx 'next'
- k
participants (5)
-
Kim Phillips -
Kumar Gala -
Kumar Gala -
Wolfgang Denk -
York Sun