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board: AM335x-ICEv2: Add DDR data

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AM335x ICEv2 contains a 2Gbit(128Mx16) of DDR3 SDRAM(MT41J128M16JT-125),
capable of running at 400MHz. Adding this specific DDR configuration
details running at 400MHz.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Lokesh Vutla 2016-05-16 11:47:24 +05:30 committed by Tom Rini
parent 866b178bd1
commit d8ff4fdb10
2 changed files with 55 additions and 1 deletions
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15
arch/arm/include/asm/arch-am33xx/ddr_defs.h
View File

@ -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

41
board/ti/am335x/board.c
View File

@ -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);