[U-Boot] [PATCH 1/3] driver/ddr: Change Freescale ARM DDR driver to support both big and little endian
Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian.
Signed-off-by: York Sun yorksun@freescale.com --- README | 6 +++ drivers/ddr/fsl/arm_ddr_gen3.c | 103 ++++++++++++++++++++-------------------- drivers/ddr/fsl/ctrl_regs.c | 4 +- drivers/ddr/fsl/util.c | 12 ++--- include/fsl_ddr.h | 9 ++++ 5 files changed, 75 insertions(+), 59 deletions(-)
diff --git a/README b/README index fe48ccd..b1b760a 100644 --- a/README +++ b/README @@ -487,6 +487,12 @@ The following options need to be configured: PBI commands can be used to configure SoC before it starts the execution. Please refer doc/README.pblimage for more details
+ CONFIG_SYS_FSL_DDR_BE + Defines the DDR controller register space as Big Endian + + CONFIG_SYS_FSL_DDR_LE + Defines the DDR controller register space as Little Endian + - Intel Monahans options: CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
diff --git a/drivers/ddr/fsl/arm_ddr_gen3.c b/drivers/ddr/fsl/arm_ddr_gen3.c index bf11390..d4ed9ae 100644 --- a/drivers/ddr/fsl/arm_ddr_gen3.c +++ b/drivers/ddr/fsl/arm_ddr_gen3.c @@ -11,6 +11,7 @@ #include <fsl_ddr_sdram.h> #include <asm/processor.h> #include <fsl_immap.h> +#include <fsl_ddr.h>
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) #error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL @@ -63,54 +64,54 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, goto step2;
if (regs->ddr_eor) - out_be32(&ddr->eor, regs->ddr_eor); + ddr_out32(&ddr->eor, regs->ddr_eor); for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { if (i == 0) { - out_be32(&ddr->cs0_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs0_config, regs->cs[i].config); - out_be32(&ddr->cs0_config_2, regs->cs[i].config_2); + ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds); + ddr_out32(&ddr->cs0_config, regs->cs[i].config); + ddr_out32(&ddr->cs0_config_2, regs->cs[i].config_2);
} else if (i == 1) { - out_be32(&ddr->cs1_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs1_config, regs->cs[i].config); - out_be32(&ddr->cs1_config_2, regs->cs[i].config_2); + ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds); + ddr_out32(&ddr->cs1_config, regs->cs[i].config); + ddr_out32(&ddr->cs1_config_2, regs->cs[i].config_2);
} else if (i == 2) { - out_be32(&ddr->cs2_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs2_config, regs->cs[i].config); - out_be32(&ddr->cs2_config_2, regs->cs[i].config_2); + ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds); + ddr_out32(&ddr->cs2_config, regs->cs[i].config); + ddr_out32(&ddr->cs2_config_2, regs->cs[i].config_2);
} else if (i == 3) { - out_be32(&ddr->cs3_bnds, regs->cs[i].bnds); - out_be32(&ddr->cs3_config, regs->cs[i].config); - out_be32(&ddr->cs3_config_2, regs->cs[i].config_2); + ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds); + ddr_out32(&ddr->cs3_config, regs->cs[i].config); + ddr_out32(&ddr->cs3_config_2, regs->cs[i].config_2); } }
- out_be32(&ddr->timing_cfg_3, regs->timing_cfg_3); - out_be32(&ddr->timing_cfg_0, regs->timing_cfg_0); - out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1); - out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2); - out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); - out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode); - out_be32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); - out_be32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3); - out_be32(&ddr->sdram_mode_4, regs->ddr_sdram_mode_4); - out_be32(&ddr->sdram_mode_5, regs->ddr_sdram_mode_5); - out_be32(&ddr->sdram_mode_6, regs->ddr_sdram_mode_6); - out_be32(&ddr->sdram_mode_7, regs->ddr_sdram_mode_7); - out_be32(&ddr->sdram_mode_8, regs->ddr_sdram_mode_8); - out_be32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl); - out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval); - out_be32(&ddr->sdram_data_init, regs->ddr_data_init); - out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); - out_be32(&ddr->init_addr, regs->ddr_init_addr); - out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); - - out_be32(&ddr->timing_cfg_4, regs->timing_cfg_4); - out_be32(&ddr->timing_cfg_5, regs->timing_cfg_5); - out_be32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl); - out_be32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl); + ddr_out32(&ddr->timing_cfg_3, regs->timing_cfg_3); + ddr_out32(&ddr->timing_cfg_0, regs->timing_cfg_0); + ddr_out32(&ddr->timing_cfg_1, regs->timing_cfg_1); + ddr_out32(&ddr->timing_cfg_2, regs->timing_cfg_2); + ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); + ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode); + ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); + ddr_out32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3); + ddr_out32(&ddr->sdram_mode_4, regs->ddr_sdram_mode_4); + ddr_out32(&ddr->sdram_mode_5, regs->ddr_sdram_mode_5); + ddr_out32(&ddr->sdram_mode_6, regs->ddr_sdram_mode_6); + ddr_out32(&ddr->sdram_mode_7, regs->ddr_sdram_mode_7); + ddr_out32(&ddr->sdram_mode_8, regs->ddr_sdram_mode_8); + ddr_out32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl); + ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval); + ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init); + ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); + ddr_out32(&ddr->init_addr, regs->ddr_init_addr); + ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); + + ddr_out32(&ddr->timing_cfg_4, regs->timing_cfg_4); + ddr_out32(&ddr->timing_cfg_5, regs->timing_cfg_5); + ddr_out32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl); + ddr_out32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl); #ifndef CONFIG_SYS_FSL_DDR_EMU /* * Skip these two registers if running on emulator @@ -118,23 +119,23 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, */
if (regs->ddr_wrlvl_cntl_2) - out_be32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2); + ddr_out32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2); if (regs->ddr_wrlvl_cntl_3) - out_be32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3); + ddr_out32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3); #endif
- out_be32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr); - out_be32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1); - out_be32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2); - out_be32(&ddr->ddr_cdr1, regs->ddr_cdr1); - out_be32(&ddr->ddr_cdr2, regs->ddr_cdr2); - out_be32(&ddr->err_disable, regs->err_disable); - out_be32(&ddr->err_int_en, regs->err_int_en); + ddr_out32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr); + ddr_out32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1); + ddr_out32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2); + ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1); + ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2); + ddr_out32(&ddr->err_disable, regs->err_disable); + ddr_out32(&ddr->err_int_en, regs->err_int_en); for (i = 0; i < 32; i++) { if (regs->debug[i]) { debug("Write to debug_%d as %08x\n", i + 1, regs->debug[i]); - out_be32(&ddr->debug[i], regs->debug[i]); + ddr_out32(&ddr->debug[i], regs->debug[i]); } }
@@ -155,7 +156,7 @@ step2: /* Set, but do not enable the memory */ temp_sdram_cfg = regs->ddr_sdram_cfg; temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN); - out_be32(&ddr->sdram_cfg, temp_sdram_cfg); + ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg);
/* * 500 painful micro-seconds must elapse between @@ -167,8 +168,8 @@ step2: asm volatile("dsb sy;isb");
/* Let the controller go */ - temp_sdram_cfg = in_be32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI; - out_be32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN); + temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI; + ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN); asm volatile("dsb sy;isb");
total_gb_size_per_controller = 0; @@ -202,7 +203,7 @@ step2: debug("Need to wait up to %d * 10ms\n", timeout);
/* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done. */ - while ((in_be32(&ddr->sdram_cfg_2) & SDRAM_CFG2_D_INIT) && + while ((ddr_in32(&ddr->sdram_cfg_2) & SDRAM_CFG2_D_INIT) && (timeout >= 0)) { udelay(10000); /* throttle polling rate */ timeout--; diff --git a/drivers/ddr/fsl/ctrl_regs.c b/drivers/ddr/fsl/ctrl_regs.c index 6bf22cf..5acbc73 100644 --- a/drivers/ddr/fsl/ctrl_regs.c +++ b/drivers/ddr/fsl/ctrl_regs.c @@ -25,8 +25,8 @@ static u32 fsl_ddr_get_version(void) u32 ver_major_minor_errata;
ddr = (void *)_DDR_ADDR; - ver_major_minor_errata = (in_be32(&ddr->ip_rev1) & 0xFFFF) << 8; - ver_major_minor_errata |= (in_be32(&ddr->ip_rev2) & 0xFF00) >> 8; + ver_major_minor_errata = (ddr_in32(&ddr->ip_rev1) & 0xFFFF) << 8; + ver_major_minor_errata |= (ddr_in32(&ddr->ip_rev2) & 0xFF00) >> 8;
return ver_major_minor_errata; } diff --git a/drivers/ddr/fsl/util.c b/drivers/ddr/fsl/util.c index 0658261..450a488 100644 --- a/drivers/ddr/fsl/util.c +++ b/drivers/ddr/fsl/util.c @@ -146,21 +146,21 @@ void board_add_ram_info(int use_default) u32 *mcintl3r = (void *) (CONFIG_SYS_IMMR + 0x18004); #endif #if (CONFIG_NUM_DDR_CONTROLLERS > 1) - uint32_t cs0_config = in_be32(&ddr->cs0_config); + uint32_t cs0_config = ddr_in32(&ddr->cs0_config); #endif - uint32_t sdram_cfg = in_be32(&ddr->sdram_cfg); + uint32_t sdram_cfg = ddr_in32(&ddr->sdram_cfg); int cas_lat;
#if CONFIG_NUM_DDR_CONTROLLERS >= 2 if (!(sdram_cfg & SDRAM_CFG_MEM_EN)) { ddr = (void __iomem *)CONFIG_SYS_FSL_DDR2_ADDR; - sdram_cfg = in_be32(&ddr->sdram_cfg); + sdram_cfg = ddr_in32(&ddr->sdram_cfg); } #endif #if CONFIG_NUM_DDR_CONTROLLERS >= 3 if (!(sdram_cfg & SDRAM_CFG_MEM_EN)) { ddr = (void __iomem *)CONFIG_SYS_FSL_DDR3_ADDR; - sdram_cfg = in_be32(&ddr->sdram_cfg); + sdram_cfg = ddr_in32(&ddr->sdram_cfg); } #endif puts(" (DDR"); @@ -188,8 +188,8 @@ void board_add_ram_info(int use_default) puts(", 64-bit");
/* Calculate CAS latency based on timing cfg values */ - cas_lat = ((in_be32(&ddr->timing_cfg_1) >> 16) & 0xf) + 1; - if ((in_be32(&ddr->timing_cfg_3) >> 12) & 1) + cas_lat = ((ddr_in32(&ddr->timing_cfg_1) >> 16) & 0xf) + 1; + if ((ddr_in32(&ddr->timing_cfg_3) >> 12) & 1) cas_lat += (8 << 1); printf(", CL=%d", cas_lat >> 1); if (cas_lat & 0x1) diff --git a/include/fsl_ddr.h b/include/fsl_ddr.h index e03f9db..72c0b2e 100644 --- a/include/fsl_ddr.h +++ b/include/fsl_ddr.h @@ -14,6 +14,14 @@
#include <common_timing_params.h>
+#ifdef CONFIG_SYS_FSL_DDR_LE +#define ddr_in32(a) in_le32(a) +#define ddr_out32(a, v) out_le32(a, v) +#else +#define ddr_in32(a) in_be32(a) +#define ddr_out32(a, v) out_be32(a, v) +#endif + #if defined(CONFIG_DDR_SPD) || defined(CONFIG_SPD_EEPROM) /* * Bind the main DDR setup driver's generic names @@ -93,6 +101,7 @@ void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd,
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); +void board_add_ram_info(int use_default);
/* processor specific function */ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
DDR base address has been the same from the view of core and DDR controllers. This has changed for Freescale ARM-based SoCs. Controllers setup DDR memory in a contiguous space and cores view it at separated locations.
Signed-off-by: York Sun yorksun@freescale.com --- README | 5 +++++ drivers/ddr/fsl/main.c | 16 ++++++++++++++-- 2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/README b/README index b1b760a..8526846 100644 --- a/README +++ b/README @@ -493,6 +493,11 @@ The following options need to be configured: CONFIG_SYS_FSL_DDR_LE Defines the DDR controller register space as Little Endian
+ CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY + Physical address from the view of DDR controllers. It is the + same as CONFIG_SYS_DDR_SDRAM_BASE for all Power SoCs. But + it could be different for ARM SoCs. + - Intel Monahans options: CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
diff --git a/drivers/ddr/fsl/main.c b/drivers/ddr/fsl/main.c index d0cd589..dee50a0 100644 --- a/drivers/ddr/fsl/main.c +++ b/drivers/ddr/fsl/main.c @@ -17,6 +17,18 @@ #include <fsl_ddr_sdram.h> #include <fsl_ddr.h>
+/* + * CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY is the physical address from the view + * of DDR controllers. It is the same as CONFIG_SYS_DDR_SDRAM_BASE for + * all Power SoCs. But it could be different for ARM SoCs. For example, + * fsl_lsch3 has a mapping mechanism to map DDR memory to ranges (in order) of + * 0x00_8000_0000 ~ 0x00_ffff_ffff + * 0x80_8000_0000 ~ 0xff_ffff_ffff + */ +#ifndef CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY +#define CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY CONFIG_SYS_DDR_SDRAM_BASE +#endif + #ifdef CONFIG_PPC #include <asm/fsl_law.h>
@@ -255,7 +267,7 @@ static unsigned long long __step_assign_addresses(fsl_ddr_info_t *pinfo, debug("dbw_cap_adj[%d]=%d\n", i, dbw_cap_adj[i]); }
- current_mem_base = CONFIG_SYS_DDR_SDRAM_BASE; + current_mem_base = CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY; total_mem = 0; if (pinfo->memctl_opts[0].memctl_interleaving) { rank_density = pinfo->dimm_params[0][0].rank_density >> @@ -536,7 +548,7 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, }
total_mem = 1 + (((unsigned long long)max_end << 24ULL) | - 0xFFFFFFULL) - CONFIG_SYS_DDR_SDRAM_BASE; + 0xFFFFFFULL) - CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY; }
return total_mem;
On Mon, Feb 10, 2014 at 01:59:43PM -0800, York Sun wrote:
DDR base address has been the same from the view of core and DDR controllers. This has changed for Freescale ARM-based SoCs. Controllers setup DDR memory in a contiguous space and cores view it at separated locations.
Signed-off-by: York Sun yorksun@freescale.com
Applied to u-boot/master, thanks!
Freescale LayerScape SoCs support controller interleaving on 256 byte size. This interleaving is mandoratory.
Signed-off-by: York Sun yorksun@freescale.com --- README | 5 +++++ drivers/ddr/fsl/ctrl_regs.c | 1 + drivers/ddr/fsl/main.c | 1 + drivers/ddr/fsl/options.c | 17 +++++++++++++++-- drivers/ddr/fsl/util.c | 3 +++ include/fsl_ddr_sdram.h | 1 + 6 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/README b/README index 8526846..99c9fb9 100644 --- a/README +++ b/README @@ -498,6 +498,11 @@ The following options need to be configured: same as CONFIG_SYS_DDR_SDRAM_BASE for all Power SoCs. But it could be different for ARM SoCs.
+ CONFIG_SYS_FSL_DDR_INTLV_256B + DDR controller interleaving on 256-byte. This is a special + interleaving mode, handled by Dickens for Freescale layerscape + SoCs with ARM core. + - Intel Monahans options: CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
diff --git a/drivers/ddr/fsl/ctrl_regs.c b/drivers/ddr/fsl/ctrl_regs.c index 5acbc73..0882932 100644 --- a/drivers/ddr/fsl/ctrl_regs.c +++ b/drivers/ddr/fsl/ctrl_regs.c @@ -145,6 +145,7 @@ static void set_csn_config(int dimm_number, int i, fsl_ddr_cfg_regs_t *ddr, if (!popts->memctl_interleaving) break; switch (popts->memctl_interleaving_mode) { + case FSL_DDR_256B_INTERLEAVING: case FSL_DDR_CACHE_LINE_INTERLEAVING: case FSL_DDR_PAGE_INTERLEAVING: case FSL_DDR_BANK_INTERLEAVING: diff --git a/drivers/ddr/fsl/main.c b/drivers/ddr/fsl/main.c index dee50a0..d62ca63 100644 --- a/drivers/ddr/fsl/main.c +++ b/drivers/ddr/fsl/main.c @@ -291,6 +291,7 @@ static unsigned long long __step_assign_addresses(fsl_ddr_info_t *pinfo, for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { if (pinfo->memctl_opts[i].memctl_interleaving) { switch (pinfo->memctl_opts[i].memctl_interleaving_mode) { + case FSL_DDR_256B_INTERLEAVING: case FSL_DDR_CACHE_LINE_INTERLEAVING: case FSL_DDR_PAGE_INTERLEAVING: case FSL_DDR_BANK_INTERLEAVING: diff --git a/drivers/ddr/fsl/options.c b/drivers/ddr/fsl/options.c index 4aafcce..b0cf046 100644 --- a/drivers/ddr/fsl/options.c +++ b/drivers/ddr/fsl/options.c @@ -818,21 +818,33 @@ unsigned int populate_memctl_options(int all_dimms_registered, * If memory controller interleaving is enabled, then the data * bus widths must be programmed identically for all memory controllers. * - * XXX: Attempt to set all controllers to the same chip select + * Attempt to set all controllers to the same chip select * interleaving mode. It will do a best effort to get the * requested ranks interleaved together such that the result * should be a subset of the requested configuration. + * + * if CONFIG_SYS_FSL_DDR_INTLV_256B is defined, mandatory interleaving + * with 256 Byte is enabled. */ #if (CONFIG_NUM_DDR_CONTROLLERS > 1) if (!hwconfig_sub_f("fsl_ddr", "ctlr_intlv", buf)) +#ifdef CONFIG_SYS_FSL_DDR_INTLV_256B + ; +#else goto done; - +#endif if (pdimm[0].n_ranks == 0) { printf("There is no rank on CS0 for controller %d.\n", ctrl_num); popts->memctl_interleaving = 0; goto done; } popts->memctl_interleaving = 1; +#ifdef CONFIG_SYS_FSL_DDR_INTLV_256B + popts->memctl_interleaving_mode = FSL_DDR_256B_INTERLEAVING; + popts->memctl_interleaving = 1; + debug("256 Byte interleaving\n"); + goto done; +#endif /* * test null first. if CONFIG_HWCONFIG is not defined * hwconfig_arg_cmp returns non-zero @@ -1085,6 +1097,7 @@ void check_interleaving_options(fsl_ddr_info_t *pinfo) "Memory controller interleaving disabled.\n"); } else { switch (check_intlv) { + case FSL_DDR_256B_INTERLEAVING: case FSL_DDR_CACHE_LINE_INTERLEAVING: case FSL_DDR_PAGE_INTERLEAVING: case FSL_DDR_BANK_INTERLEAVING: diff --git a/drivers/ddr/fsl/util.c b/drivers/ddr/fsl/util.c index 450a488..ad53658 100644 --- a/drivers/ddr/fsl/util.c +++ b/drivers/ddr/fsl/util.c @@ -228,6 +228,9 @@ void board_add_ram_info(int use_default) puts(" DDR Controller Interleaving Mode: ");
switch ((cs0_config >> 24) & 0xf) { + case FSL_DDR_256B_INTERLEAVING: + puts("256B"); + break; case FSL_DDR_CACHE_LINE_INTERLEAVING: puts("cache line"); break; diff --git a/include/fsl_ddr_sdram.h b/include/fsl_ddr_sdram.h index 16cccc7..2a36431 100644 --- a/include/fsl_ddr_sdram.h +++ b/include/fsl_ddr_sdram.h @@ -76,6 +76,7 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t; #define FSL_DDR_PAGE_INTERLEAVING 0x1 #define FSL_DDR_BANK_INTERLEAVING 0x2 #define FSL_DDR_SUPERBANK_INTERLEAVING 0x3 +#define FSL_DDR_256B_INTERLEAVING 0x8 #define FSL_DDR_3WAY_1KB_INTERLEAVING 0xA #define FSL_DDR_3WAY_4KB_INTERLEAVING 0xC #define FSL_DDR_3WAY_8KB_INTERLEAVING 0xD
On Mon, Feb 10, 2014 at 01:59:44PM -0800, York Sun wrote:
Freescale LayerScape SoCs support controller interleaving on 256 byte size. This interleaving is mandoratory.
Signed-off-by: York Sun yorksun@freescale.com
Applied to u-boot/master, thanks!
On Mon, Feb 10, 2014 at 01:59:42PM -0800, York Sun wrote:
Initially it was believed the DDR controller on Freescale ARM would have big endian. But some platform will have little endian.
Signed-off-by: York Sun yorksun@freescale.com
Applied to u-boot/master, thanks!
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York Sun