The patch adds memory initialization sequence for DDR3 @667Mhz and enables DDR3 memory by default.
Signed-off-by: Hatim Ali hatim.rv@samsung.com
diff --git a/board/samsung/smdk5250/Makefile b/board/samsung/smdk5250/Makefile index 3b4aa06..291fcc6 100644 --- a/board/samsung/smdk5250/Makefile +++ b/board/samsung/smdk5250/Makefile @@ -28,7 +28,13 @@ SOBJS := lowlevel_init.o
COBJS := clock_init.o COBJS += dmc_common.o +ifdef CONFIG_DDR3 +COBJS += dmc_init_ddr3.o +else +ifdef CONFIG_LPDDR2 COBJS += dmc_init_lpddr2.o +endif +endif COBJS += tzpc_init.o
ifndef CONFIG_SPL_BUILD diff --git a/board/samsung/smdk5250/dmc_init_ddr3.c b/board/samsung/smdk5250/dmc_init_ddr3.c new file mode 100644 index 0000000..3e31043 --- /dev/null +++ b/board/samsung/smdk5250/dmc_init_ddr3.c @@ -0,0 +1,276 @@ +/* + * DDR3 mem setup file for SMDK5250 board based on EXYNOS5 + * + * Copyright (C) 2012 Samsung Electronics + * + * 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 <config.h> +#include <asm/io.h> +#include <asm/arch/dmc.h> +#include <asm/arch/clock.h> +#include <asm/arch/cpu.h> +#include "setup.h" + +/* APLL : 1GHz */ +/* MCLK_CDREX: 667Mhz */ +/* Memory Type : DDR3 */ + +static void reset_phy_ctrl(void) +{ + struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE; + writel(LPDDR3PHY_CTRL_PHY_RESET_OFF, &clk->lpddr3phy_ctrl); + sdelay(10000); /* approx 200us */ + writel(LPDDR3PHY_CTRL_PHY_RESET, &clk->lpddr3phy_ctrl); +} + +/* Sending ZQINIT command */ +static void config_zqinit(struct exynos5_dmc *dmc) +{ + unsigned long channel, chip, mask = 0, val; + + for (channel = 0; channel < CONFIG_DMC_CHANNELS; channel++) { + SET_CMD_CHANNEL(mask, channel); + for (chip = 0; chip < CONFIG_CHIPS_PER_CHANNEL; chip++) { + SET_CMD_CHIP(mask, chip); + val = DIRECT_CMD_ZQINIT | mask; + writel(val, &dmc->directcmd); + } + } +} + +static void config_ctrl_dll_on(unsigned int state, + struct exynos5_phy_control *phy0_ctrl, + struct exynos5_phy_control *phy1_ctrl) +{ + unsigned int val, tmp; + val = readl(&phy0_ctrl->phy_con13); + val &= (0x3F << 10); + val >>= 2; + tmp = PHY_CON12_RESET_VAL; + CONFIG_CTRL_DLL_ON(tmp, state); + val += tmp; + writel(val, &phy0_ctrl->phy_con12); + + val = readl(&phy1_ctrl->phy_con13); + val &= (0x3F << 10); + val >>= 2; + tmp = PHY_CON12_RESET_VAL; + CONFIG_CTRL_DLL_ON(tmp, state); + val += tmp; + writel(val, &phy1_ctrl->phy_con12); +} + +void mem_ctrl_init() +{ + struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE; + struct exynos5_phy_control *phy0_ctrl, *phy1_ctrl; + struct exynos5_dmc *dmc; + unsigned int val; + + phy0_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY0_BASE; + phy1_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY1_BASE; + dmc = (struct exynos5_dmc *)EXYNOS5_DMC_CTRL_BASE; + + reset_phy_ctrl(); + + writel(0x0, &clk->src_cdrex); + writel(CLK_DIV_CDREX_VAL, &clk->div_cdrex); + + writel(MPLL_CON1_VAL, &clk->mpll_con1); + writel(MPLL_CON0_VAL, &clk->mpll_con0); + writel(BPLL_CON1_VAL, &clk->bpll_con1); + writel(BPLL_CON0_VAL, &clk->bpll_con0); + + writel(CLK_SRC_CDREX_VAL, &clk->src_cdrex); + + + /* Setting Operation Mode: DDR3 + * Enabling byte_rdlvl + */ + val = PHY_CON0_RESET_VAL; + SET_CTRL_DDR_MODE(val, DDR_MODE_DDR3); + val |= BYTE_RDLVL_EN; + writel(val, &phy0_ctrl->phy_con0); + writel(val, &phy1_ctrl->phy_con0); + + /* Enable Read Leveling */ + writel(SET_RDLVL_RDDATA_ADJ, &phy0_ctrl->phy_con1); + writel(SET_RDLVL_RDDATA_ADJ, &phy1_ctrl->phy_con1); + + /* DQS, DQ: Signal, for LPDDR3: Always Set */ + val = CTRL_PULLD_DQ | CTRL_PULLD_DQS; + writel(val, &phy0_ctrl->phy_con14); + writel(val, &phy1_ctrl->phy_con14); + + /*set Read Latance and Burst Length for PHY0 and PHY1 */ + writel(PHY_CON42_VAL, &phy0_ctrl->phy_con42); + writel(PHY_CON42_VAL, &phy1_ctrl->phy_con42); + + /* ZQ Calibration */ + config_zq(phy0_ctrl, phy1_ctrl); + + /* Set DMC Concontrol + * dfi_init_start = 1 + * rd_fetch = 0x3 + * empty = 0 + */ + val = DMC_CONCONTROL_RESET_VAL; + SET_RD_FETCH(val); + val |= DFI_INIT_START; + val &= ~EMPTY; + writel(val, &dmc->concontrol); + + /* + * Dynamic Clock: Always Running + * Memory Burst length: 8 + * Number of chips: 1 + * Memory Bus width: 32 bit + * Memory Type: DDR3 + * Additional Latancy for PLL: 0 Cycle + */ + writel(DMC_MEMCONTROL_VAL, &dmc->memcontrol); + + config_memory(dmc); + + /* Precharge Configuration */ + writel(DMC_PRECHCONFIG_VAL, &dmc->prechconfig); + + /* Power Down mode Configuration */ + writel(DMC_PWRDNCONFIG_VAL, &dmc->pwrdnconfig); + + /* Periodic Refresh Interval */ + writel(DMC_TIMINGREF_VAL, &dmc->timingref); + + /* + * TimingRow, TimingData, TimingPower Setting: + * Values as per Memory AC Parameters + */ + writel(DMC_TIMINGROW_VAL, &dmc->timingrow); + + writel(DMC_TIMINGDATA_VAL, &dmc->timingdata); + + writel(DMC_TIMINGPOWER_VAL, &dmc->timingpower); + + /* Memory Channel Inteleaving Size: 128 Bytes */ + writel(CONFIG_IV_SIZE, &dmc->ivcontrol); + + /* Set DQS offsets */ + writel(DDR3_PHY0_DQS, &phy0_ctrl->phy_con4); + writel(DDR3_PHY1_DQS, &phy1_ctrl->phy_con4); + + /* Set DQS offsets */ + writel(DDR3_PHY0_DQ, &phy0_ctrl->phy_con6); + writel(DDR3_PHY1_DQ, &phy1_ctrl->phy_con6); + + /* Set Debug offsets */ + writel(RESET_DEBUG_OFFSET_VAL, &phy0_ctrl->phy_con10); + writel(RESET_DEBUG_OFFSET_VAL, &phy1_ctrl->phy_con10); + + config_ctrl_dll_on(RESET, phy0_ctrl, phy1_ctrl); + + sdelay(50); /* approx 10 PCLK cycle */ + + update_reset_dll(dmc); + + config_mrs(dmc); + config_zqinit(dmc); + + sdelay(50); /* approx 10 PCLK cycle */ + + /* Reset DLL Locking */ + val = PHY_CON12_RESET_VAL; + CONFIG_CTRL_START(val, RESET); + writel(val, &phy0_ctrl->phy_con12); + writel(val, &phy1_ctrl->phy_con12); + + /* Reset DLL Locking */ + val = PHY_CON12_RESET_VAL; + CONFIG_CTRL_START(val, SET); + writel(val, &phy0_ctrl->phy_con12); + writel(val, &phy1_ctrl->phy_con12); + + sdelay(50); /* approx 10 PCLK cycle */ + + do { + val = readl(&dmc->phystatus); + val &= (0x3 << 2); + } while (val == 0); + + /* Set DMC Concontrol + * rd_fetch = 0x3 + * empty = 0 + * Basically here we are stopping dfi_init_start done above. + */ + val = DMC_CONCONTROL_RESET_VAL; + SET_RD_FETCH(val); + val &= ~EMPTY; + writel(val, &dmc->concontrol); + + update_reset_dll(dmc); + + writel(SET_RDLVL_RDDATA_ADJ, &phy0_ctrl->phy_con1); + writel(SET_RDLVL_RDDATA_ADJ, &phy1_ctrl->phy_con1); + + /* Enable Read Leveling */ + val = PHY_CON2_RESET_VAL | RDLVL_EN; + writel(val, &phy0_ctrl->phy_con2); + writel(val, &phy1_ctrl->phy_con2); + + /* Enable data eye training*/ + val = RDLVL_CONFIG_RESET_VAL | CTRL_RDLVL_DATA_EN; + writel(val, &dmc->rdlvl_config); + + do { + val = readl(&dmc->phystatus); + val &= (0x3<<14); + } while (val == 0); + + /* Disable data eye training*/ + val = RDLVL_CONFIG_RESET_VAL & ~CTRL_RDLVL_DATA_EN; + writel(val, &dmc->rdlvl_config); + + config_ctrl_dll_on(SET, phy0_ctrl, phy1_ctrl); + + update_reset_dll(dmc); + + config_prech(dmc); + + /* + * Dynamic Clock: Always Running + * Memory Burst length: 8 + * Number of chips: 1 + * Memory Bus width: 32 bit + * Memory Type: DDR3 + * Additional Latancy for PLL: 0 Cycle + */ + writel(DMC_MEMCONTROL_VAL, &dmc->memcontrol); + + /* Set DMC Concontrol + * rd_fetch = 0x3 + * empty = 0 + * Auto refresh counter enable + */ + val = DMC_CONCONTROL_RESET_VAL; + SET_RD_FETCH(val); + val &= ~EMPTY; + val |= AREF_EN; + writel(val, &dmc->concontrol); +} diff --git a/board/samsung/smdk5250/setup.h b/board/samsung/smdk5250/setup.h index c061440..f51acab 100644 --- a/board/samsung/smdk5250/setup.h +++ b/board/samsung/smdk5250/setup.h @@ -1,5 +1,5 @@ /* - * Machine Specific Values for SMDK5250 board based on S5PC520 + * Machine Specific Values for SMDK5250 board based on Exynos5 * * Copyright (C) 2012 Samsung Electronics * @@ -114,8 +114,13 @@ #define VPLL_CON1_VAL 0x00000000 #define VPLL_CON2_VAL 0x00000080
+#ifdef CONFIG_LPDDR2 #define BPLL_MDIV 0x215 #define BPLL_PDIV 0xC +#elif defined CONFIG_DDR3 +#define BPLL_MDIV 0x185 +#define BPLL_PDIV 0x7 +#endif #define BPLL_SDIV 0x1
#define BPLL_CON1_VAL 0x00203800 @@ -155,13 +160,19 @@ #define MCLK_CDREX_RATIO 0x0 #define ACLK_C2C_200_RATIO 0x1 #define C2C_CLK_400_RATIO 0x1 +#ifdef CONFIG_DDR3 +#define PCLK_CDREX_RATIO 0x4 +#else #define PCLK_CDREX_RATIO 0x3 +#endif #define ACLK_CDREX_RATIO 0x1 -#define CLK_DIV_CDREX_VAL ((MCLK_DPHY_RATIO << 20) \ - | (MCLK_CDREX_RATIO << 16) \ +#define CLK_DIV_CDREX_VAL ((MCLK_CDREX2_RATIO << 28) \ + | (ACLK_EFCON_RATIO << 24) \ + | (MCLK_DPHY_RATIO << 20) \ + | (MCLK_CDREX_RATIO << 16) \ | (ACLK_C2C_200_RATIO << 12) \ - | (C2C_CLK_400_RATIO << 8) \ - | (PCLK_CDREX_RATIO << 4) \ + | (C2C_CLK_400_RATIO << 8) \ + | (PCLK_CDREX_RATIO << 4) \ | (ACLK_CDREX_RATIO))
#define MCLK_EFPHY_RATIO 0x4 @@ -360,8 +371,13 @@ /*ZQ Configurations */ #define PHY_CON16_RESET_VAL 0x08000304
+#ifdef CONFIG_LPDDR2 #define ZQ_MODE_DDS_VAL (0x5 << 24) #define ZQ_MODE_TERM_VAL (0x5 << 21) +#elif defined CONFIG_DDR3 +#define ZQ_MODE_DDS_VAL (0x7 << 24) +#define ZQ_MODE_TERM_VAL (0x2 << 21) +#endif #define SET_ZQ_MODE_DDS_VAL(x) (x = (x & ~(0x7 << 24)) | ZQ_MODE_DDS_VAL) #define SET_ZQ_MODE_TERM_VAL(x) (x = (x & ~(0x7 << 21)) | ZQ_MODE_TERM_VAL)
@@ -378,55 +394,181 @@
/* Diret Command */ #define DIRECT_CMD_NOP 0x07000000 +#define DIRECT_CMD_PALL 0x01000000 +#define DIRECT_CMD_ZQINIT 0x0A000000 +#ifdef CONFIG_LPDDR2 #define DIRECT_CMD_MRS1 0x00071C00 #define DIRECT_CMD_MRS2 0x00010BFC #define DIRECT_CMD_MRS3 0x00000708 #define DIRECT_CMD_MRS4 0x00000818 -#define DIRECT_CMD_PALL 0x01000000 +#elif defined CONFIG_DDR3 +#define DIRECT_CMD_MRS1 0x00020010 +#define DIRECT_CMD_MRS2 0x00030000 +#define DIRECT_CMD_MRS3 0x00010042 +#define DIRECT_CMD_MRS4 0x00000B50 +#endif
-/* DLL Resync */ -#define FP_RSYNC (1 << 3) +/* DMC PHY Control0 register */ +#define PHY_CONTROL0_RESET_VAL 0x0 +#define MEM_TERM_EN (1 << 31) /* Termination enable for memory */ +#define PHY_TERM_EN (1 << 30) /* Termination enable for PHY */ +#define CTRL_SHGATE (1 << 29) /* Duration of DQS gating signal */ +#define FP_RSYNC (1 << 3) /* Force DLL resyncronization */
+/* MDLL control */ +#define PHY_CON12_RESET_VAL 0x10100070 #define CONFIG_CTRL_DLL_ON(x, y) (x = (x & ~(1 << 5)) | y << 5) #define CONFIG_CTRL_START(x, y) (x = (x & ~(1 << 6)) | y << 6) #define SET_CTRL_FORCE_VAL(x, y) (x = (x & ~(0x7F << 8)) | y << 8)
-/* RDLVL */ -#define PHY_CON0_RESET_VAL 0x17023240 +/* PHY Control */ +#define PHY_CON0_RESET_VAL 0x17020A40 +#define DDR_MODE_DDR3 0x1 #define DDR_MODE_LPDDR2 0x2 +#define DDR_MODE_LPDDR3 0x3 #define BYTE_RDLVL_EN (1 << 13) #define CTRL_ATGATE (1 << 6) -#define SET_CTRL_DDR_MODE(x, y) (x = (x & ~(0x3 << 11)) | y << 11) +#define SET_CTRL_DDR_MODE(x, y) (x = (x & ~(0x3 << 11)) | y << 11) +#define SET_T_RDDATA_MARGIN(x, y) (x = (x & ~(0x7 << 17)) | y << 17)
#define PHY_CON1_RESET_VAL 0x9210100 +#ifdef CONFIG_DDR3 +#define RDLVL_RDDATA_ADJ 0xFF00 +#elif defined CONFIG_LPDDR2 #define RDLVL_RDDATA_ADJ 0x1 +#endif #define SET_RDLVL_RDDATA_ADJ ((PHY_CON1_RESET_VAL & ~(0xFFFF << 0)) \ | RDLVL_RDDATA_ADJ << 0)
+#define DDR3_ADDR 0x0208 + #define PHY_CON2_RESET_VAL 0x00010004 #define RDLVL_EN (1 << 25) #define RDDSKEW_CLEAR (1 << 13)
+#define RDLVL_CONFIG_RESET_VAL 0x0 #define CTRL_RDLVL_DATA_EN (1 << 1) #define LPDDR2_ADDR 0x00000208
-#define DMC_MEMCONFIG0_VAL 0x00001323 -#define DMC_MEMCONFIG1_VAL 0x00001323 -#define DMC_MEMBASECONFIG0_VAL 0x00400780 -#define DMC_MEMBASECONFIG1_VAL 0x00800780 -#define DMC_MEMCONTROL_VAL 0x00212500 +/* MEMCONTROL register bit fields */ +#define DMC_MEMCONTROL_CLK_STOP_DISABLE (0 << 0) +#define DMC_MEMCONTROL_DPWRDN_DISABLE (0 << 1) +#define DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE (0 << 2) +#define DMC_MEMCONTROL_TP_DISABLE (0 << 4) +#define DMC_MEMCONTROL_DSREF_DISABLE (0 << 5) +#define DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(x) (x << 6) + +#define DMC_MEMCONTROL_MEM_TYPE_LPDDR3 (7 << 8) +#define DMC_MEMCONTROL_MEM_TYPE_DDR3 (6 << 8) +#define DMC_MEMCONTROL_MEM_TYPE_LPDDR2 (5 << 8) + +#define DMC_MEMCONTROL_MEM_WIDTH_32BIT (2 << 12) + +#define DMC_MEMCONTROL_NUM_CHIP_1 (0 << 16) +#define DMC_MEMCONTROL_NUM_CHIP_2 (1 << 16) + +#define DMC_MEMCONTROL_BL_8 (3 << 20) +#define DMC_MEMCONTROL_BL_4 (2 << 20) + +#define DMC_MEMCONTROL_PZQ_DISABLE (0 << 24) + +#define DMC_MEMCONTROL_MRR_BYTE_7_0 (0 << 25) +#define DMC_MEMCONTROL_MRR_BYTE_15_8 (1 << 25) +#define DMC_MEMCONTROL_MRR_BYTE_23_16 (2 << 25) +#define DMC_MEMCONTROL_MRR_BYTE_31_24 (3 << 25) + +/* MEMCONFIG0 register bit fields */ +#define DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED (1 << 12) +#define DMC_MEMCONFIGx_CHIP_COL_10 (3 << 8) +#define DMC_MEMCONFIGx_CHIP_ROW_14 (2 << 4) +#define DMC_MEMCONFIGx_CHIP_ROW_15 (3 << 4) +#define DMC_MEMCONFIGx_CHIP_BANK_8 (3 << 0) + + +#define DMC_MEMBASECONFIGx_CHIP_BASE(x) (x << 16) +#define DMC_MEMBASECONFIGx_CHIP_MASK(x) (x << 0) +#define DMC_MEMBASECONFIG_VAL(x) ( \ + DMC_MEMBASECONFIGx_CHIP_BASE(x) | \ + DMC_MEMBASECONFIGx_CHIP_MASK(0x780) \ +) + +#define DMC_MEMBASECONFIG0_VAL DMC_MEMBASECONFIG_VAL(0x40) +#define DMC_MEMBASECONFIG1_VAL DMC_MEMBASECONFIG_VAL(0x80) + +#ifdef CONFIG_LPDDR2 +#define DMC_MEMCONTROL_VAL ( \ + DMC_MEMCONTROL_CLK_STOP_DISABLE | \ + DMC_MEMCONTROL_DPWRDN_DISABLE | \ + DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE | \ + DMC_MEMCONTROL_TP_DISABLE | \ + DMC_MEMCONTROL_DSREF_DISABLE | \ + DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) | \ + DMC_MEMCONTROL_MEM_TYPE_LPDDR2 | \ + DMC_MEMCONTROL_MEM_WIDTH_32BIT | \ + DMC_MEMCONTROL_NUM_CHIP_2 | \ + DMC_MEMCONTROL_BL_4 | \ + DMC_MEMCONTROL_PZQ_DISABLE | \ + DMC_MEMCONTROL_MRR_BYTE_7_0 \ +) +#define DMC_MEMCONFIG_VAL ( \ + DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED | DMC_MEMCONFIGx_CHIP_COL_10 | \ + DMC_MEMCONFIGx_CHIP_ROW_14 | DMC_MEMCONFIGx_CHIP_BANK_8) +#define DMC_MEMCONFIG1_VAL DMC_MEMCONFIG_VAL +#define DMC_MEMCONFIG0_VAL DMC_MEMCONFIG_VAL + +#elif defined CONFIG_DDR3 +#define DMC_MEMCONTROL_VAL ( \ + DMC_MEMCONTROL_CLK_STOP_DISABLE | \ + DMC_MEMCONTROL_DPWRDN_DISABLE | \ + DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE | \ + DMC_MEMCONTROL_TP_DISABLE | \ + DMC_MEMCONTROL_DSREF_DISABLE | \ + DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) | \ + DMC_MEMCONTROL_MEM_TYPE_DDR3 | \ + DMC_MEMCONTROL_MEM_WIDTH_32BIT | \ + DMC_MEMCONTROL_NUM_CHIP_1 | \ + DMC_MEMCONTROL_BL_8 | \ + DMC_MEMCONTROL_PZQ_DISABLE | \ + DMC_MEMCONTROL_MRR_BYTE_7_0 \ +) +#define DMC_MEMCONFIG_VAL ( \ + DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED | DMC_MEMCONFIGx_CHIP_COL_10 | \ + DMC_MEMCONFIGx_CHIP_ROW_15 | DMC_MEMCONFIGx_CHIP_BANK_8) +#define DMC_MEMCONFIG1_VAL DMC_MEMCONFIG_VAL +#define DMC_MEMCONFIG0_VAL DMC_MEMCONFIG_VAL +#endif + #define DMC_PRECHCONFIG_VAL 0xFF000000 #define DMC_PWRDNCONFIG_VAL 0xFFFF00FF +#ifdef CONFIG_LPDDR2 #define DMC_TIMINGREF_VAL 0x0000005D #define DMC_TIMINGROW_VAL 0x2336544C #define DMC_TIMINGDATA_VAL 0x24202408 #define DMC_TIMINGPOWER_VAL 0x38260235 +#elif defined CONFIG_DDR3 +#define DMC_TIMINGREF_VAL 0x000000BB +#define DMC_TIMINGROW_VAL 0x7645644d +#define DMC_TIMINGDATA_VAL 0x45414709 +#define DMC_TIMINGPOWER_VAL 0x3a000a3c +#endif
+#ifdef CONFIG_LPDDR2 #define CTRL_BSTLEN 0x04 #define CTRL_RDLAT 0x08 +#elif defined CONFIG_DDR3 +#define CTRL_BSTLEN 0x08 +#define CTRL_RDLAT 0x09 +#endif #define PHY_CON42_VAL (CTRL_BSTLEN << 8 | CTRL_RDLAT << 0)
/* DQS, DQ, DEBUG offsets */ +#ifdef CONFIG_DDR3 +#define DDR3_PHY0_DQS 0x08080808 +#define DDR3_PHY1_DQS 0x08080808 +#define DDR3_PHY0_DQ 0x08080808 +#define DDR3_PHY1_DQ 0x00080808 +#endif + #define SET_DQS_OFFSET_VAL 0x7F7F7F7F #define SET_DQ_OFFSET_VAL 0x7F7F7F7F #define SET_DEBUG_OFFSET_VAL 0x7F @@ -438,13 +580,21 @@ #define CTRL_PULLD_DQ (0x0F << 8) #define CTRL_PULLD_DQS (0x0F << 0)
+#define DMC_CONCONTROL_RESET_VAL 0x0FFF1100 +#ifdef CONFIG_LPDDR2 +#define RD_FETCH 0x3 +#elif defined CONFIG_DDR3 +#define RD_FETCH 0x2 +#endif +#define SET_RD_FETCH(x) (x = (x & ~(0x7 << 12)) | RD_FETCH << 12) #define DFI_INIT_START (1 << 28) +#define EMPTY (1 << 8) +#define AREF_EN (1 << 5)
#define CLK_STOP_EN (1 << 0) #define DPWRDN_EN (1 << 1) #define DSREF_EN (1 << 5)
-#define AREF_EN (1 << 5) void sdelay(unsigned long); void mem_ctrl_init(void); void system_clock_init(void); diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h index 9659f9e..cc24be6 100644 --- a/include/configs/smdk5250.h +++ b/include/configs/smdk5250.h @@ -37,6 +37,12 @@ #define CONFIG_DISPLAY_CPUINFO #define CONFIG_DISPLAY_BOARDINFO
+/* Choose DDR Type below: + * Uncomment the type of DDR present on your board + */ +#define CONFIG_DDR3 +/* #define CONFIG_LPDDR2 */ + /* Keep L2 Cache Disabled */ #define CONFIG_SYS_DCACHE_OFF