diff options
| -rw-r--r-- | arch/arm/include/asm/arch-am33xx/ddr_defs.h | 15 | ||||
| -rw-r--r-- | board/ti/am335x/board.c | 41 |
2 files changed, 55 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h index 97bbfe2..43e122e 100644 --- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h +++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h @@ -54,6 +54,21 @@ #define MT41J128MJT125_PHY_FIFO_WE 0x100 #define MT41J128MJT125_IOCTRL_VALUE 0x18B +/* Micron MT41J128M16JT-125 at 400MHz*/ +#define MT41J128MJT125_EMIF_READ_LATENCY_400MHz 0x100007 +#define MT41J128MJT125_EMIF_TIM1_400MHz 0x0AAAD4DB +#define MT41J128MJT125_EMIF_TIM2_400MHz 0x26437FDA +#define MT41J128MJT125_EMIF_TIM3_400MHz 0x501F83FF +#define MT41J128MJT125_EMIF_SDCFG_400MHz 0x61C052B2 +#define MT41J128MJT125_EMIF_SDREF_400MHz 0x00000C30 +#define MT41J128MJT125_ZQ_CFG_400MHz 0x50074BE4 +#define MT41J128MJT125_RATIO_400MHz 0x80 +#define MT41J128MJT125_INVERT_CLKOUT_400MHz 0x0 +#define MT41J128MJT125_RD_DQS_400MHz 0x3A +#define MT41J128MJT125_WR_DQS_400MHz 0x3B +#define MT41J128MJT125_PHY_WR_DATA_400MHz 0x76 +#define MT41J128MJT125_PHY_FIFO_WE_400MHz 0x96 + /* Micron MT41K128M16JT-187E */ #define MT41K128MJT187E_EMIF_READ_LATENCY 0x06 #define MT41K128MJT187E_EMIF_TIM1 0x0888B3DB diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index 579b4ef..51c4358 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -38,6 +38,7 @@ DECLARE_GLOBAL_DATA_PTR; /* GPIO that controls power to DDR on EVM-SK */ #define GPIO_DDR_VTT_EN 7 +#define ICE_GPIO_DDR_VTT_EN 18 #if defined(CONFIG_SPL_BUILD) || \ (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_DM_ETH)) @@ -97,6 +98,13 @@ static const struct ddr_data ddr3_evm_data = { .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA, }; +static const struct ddr_data ddr3_icev2_data = { + .datardsratio0 = MT41J128MJT125_RD_DQS_400MHz, + .datawdsratio0 = MT41J128MJT125_WR_DQS_400MHz, + .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE_400MHz, + .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA_400MHz, +}; + static const struct cmd_control ddr3_cmd_ctrl_data = { .cmd0csratio = MT41J128MJT125_RATIO, .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT, @@ -130,6 +138,17 @@ static const struct cmd_control ddr3_evm_cmd_ctrl_data = { .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT, }; +static const struct cmd_control ddr3_icev2_cmd_ctrl_data = { + .cmd0csratio = MT41J128MJT125_RATIO_400MHz, + .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT_400MHz, + + .cmd1csratio = MT41J128MJT125_RATIO_400MHz, + .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT_400MHz, + + .cmd2csratio = MT41J128MJT125_RATIO_400MHz, + .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT_400MHz, +}; + static struct emif_regs ddr3_emif_reg_data = { .sdram_config = MT41J128MJT125_EMIF_SDCFG, .ref_ctrl = MT41J128MJT125_EMIF_SDREF, @@ -162,6 +181,17 @@ static struct emif_regs ddr3_evm_emif_reg_data = { PHY_EN_DYN_PWRDN, }; +static struct emif_regs ddr3_icev2_emif_reg_data = { + .sdram_config = MT41J128MJT125_EMIF_SDCFG_400MHz, + .ref_ctrl = MT41J128MJT125_EMIF_SDREF_400MHz, + .sdram_tim1 = MT41J128MJT125_EMIF_TIM1_400MHz, + .sdram_tim2 = MT41J128MJT125_EMIF_TIM2_400MHz, + .sdram_tim3 = MT41J128MJT125_EMIF_TIM3_400MHz, + .zq_config = MT41J128MJT125_ZQ_CFG_400MHz, + .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY_400MHz | + PHY_EN_DYN_PWRDN, +}; + #ifdef CONFIG_SPL_OS_BOOT int spl_start_uboot(void) { @@ -339,7 +369,7 @@ const struct dpll_params *get_dpll_ddr_params(void) if (board_is_evm_sk()) return &dpll_ddr_evm_sk; - else if (board_is_bone_lt()) + else if (board_is_bone_lt() || board_is_icev2()) return &dpll_ddr_bone_black; else if (board_is_evm_15_or_later()) return &dpll_ddr_evm_sk; @@ -418,6 +448,11 @@ void sdram_init(void) gpio_direction_output(GPIO_DDR_VTT_EN, 1); } + if (board_is_icev2()) { + gpio_request(ICE_GPIO_DDR_VTT_EN, "ddr_vtt_en"); + gpio_direction_output(ICE_GPIO_DDR_VTT_EN, 1); + } + if (board_is_evm_sk()) config_ddr(303, &ioregs_evmsk, &ddr3_data, &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0); @@ -429,6 +464,10 @@ void sdram_init(void) else if (board_is_evm_15_or_later()) config_ddr(303, &ioregs_evm15, &ddr3_evm_data, &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0); + else if (board_is_icev2()) + config_ddr(400, &ioregs_evmsk, &ddr3_icev2_data, + &ddr3_icev2_cmd_ctrl_data, &ddr3_icev2_emif_reg_data, + 0); else config_ddr(266, &ioregs, &ddr2_data, &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0); |