[U-Boot] [U-boot] [Patch v2 3/6] keystone2: ddr: add DDR3 PHY configs updated for PG 2.0
Ivan Khoronzhuk
ivan.khoronzhuk at ti.com
Wed Jul 9 18:48:41 CEST 2014
From: Hao Zhang <hzhang at ti.com>
Add DDR3 PHY configs updated for PG 2.0
Also add DDR3A PHY reset before init for PG2.0 SoCs.
Acked-by: Murali Karicheri <m-maricheri2 at ti.com>
Signed-off-by: Hao Zhang <hzhang at ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk at ti.com>
---
arch/arm/cpu/armv7/keystone/ddr3.c | 19 +++++++
arch/arm/include/asm/arch-keystone/ddr3.h | 1 +
arch/arm/include/asm/arch-keystone/hardware.h | 2 +
board/ti/k2hk_evm/ddr3.c | 80 ++++++++++++++++++++++++++-
4 files changed, 100 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/armv7/keystone/ddr3.c b/arch/arm/cpu/armv7/keystone/ddr3.c
index bb16551..b711b81 100644
--- a/arch/arm/cpu/armv7/keystone/ddr3.c
+++ b/arch/arm/cpu/armv7/keystone/ddr3.c
@@ -8,6 +8,7 @@
*/
#include <asm/io.h>
+#include <common.h>
#include <asm/arch/ddr3.h>
void ddr3_init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg)
@@ -67,3 +68,21 @@ void ddr3_init_ddremif(u32 base, struct ddr3_emif_config *emif_cfg)
__raw_writel(emif_cfg->zqcfg, base + KS2_DDR3_ZQCFG_OFFSET);
__raw_writel(emif_cfg->sdrfc, base + KS2_DDR3_SDRFC_OFFSET);
}
+
+void ddr3_reset_ddrphy(void)
+{
+ u32 tmp;
+
+ /* Assert DDR3A PHY reset */
+ tmp = readl(K2HK_DDR3APLLCTL1);
+ tmp |= KS2_DDR3_PLLCTRL_PHY_RESET;
+ writel(tmp, K2HK_DDR3APLLCTL1);
+
+ /* wait 10us to catch the reset */
+ udelay(10);
+
+ /* Release DDR3A PHY reset */
+ tmp = readl(K2HK_DDR3APLLCTL1);
+ tmp &= ~KS2_DDR3_PLLCTRL_PHY_RESET;
+ __raw_writel(tmp, K2HK_DDR3APLLCTL1);
+}
diff --git a/arch/arm/include/asm/arch-keystone/ddr3.h b/arch/arm/include/asm/arch-keystone/ddr3.h
index 05b7e29..4d229a2 100644
--- a/arch/arm/include/asm/arch-keystone/ddr3.h
+++ b/arch/arm/include/asm/arch-keystone/ddr3.h
@@ -49,6 +49,7 @@ struct ddr3_emif_config {
};
void ddr3_init(void);
+void ddr3_reset_ddrphy(void);
void ddr3_init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg);
void ddr3_init_ddremif(u32 base, struct ddr3_emif_config *emif_cfg);
diff --git a/arch/arm/include/asm/arch-keystone/hardware.h b/arch/arm/include/asm/arch-keystone/hardware.h
index f8f986c..db2d36b 100644
--- a/arch/arm/include/asm/arch-keystone/hardware.h
+++ b/arch/arm/include/asm/arch-keystone/hardware.h
@@ -80,6 +80,8 @@ typedef volatile unsigned int *dv_reg_p;
#define KS2_DDR3_PMCTL_OFFSET 0x38
#define KS2_DDR3_ZQCFG_OFFSET 0xC8
+#define KS2_DDR3_PLLCTRL_PHY_RESET 0x80000000
+
#define KS2_UART0_BASE 0x02530c00
#define KS2_UART1_BASE 0x02531000
diff --git a/board/ti/k2hk_evm/ddr3.c b/board/ti/k2hk_evm/ddr3.c
index 0085f29..b604266 100644
--- a/board/ti/k2hk_evm/ddr3.c
+++ b/board/ti/k2hk_evm/ddr3.c
@@ -188,6 +188,61 @@ static struct ddr3_phy_config ddr3phy_1333_64 = {
.pir_v2 = 0x0000FF81ul,
};
/******************************************************/
+
+/* DDR PHY Configs Updated for PG 2.0
+ * zq0,1,2cr1 are updated for PG 2.0 specific configs *_pg2 */
+static struct ddr3_phy_config ddr3phy_1600_64A_pg2 = {
+ .pllcr = 0x0001C000ul,
+ .pgcr1_mask = (IODDRM_MASK | ZCKSEL_MASK),
+ .pgcr1_val = ((1 << 2) | (1 << 7) | (1 << 23)),
+ .ptr0 = 0x42C21590ul,
+ .ptr1 = 0xD05612C0ul,
+ .ptr2 = 0, /* not set in gel */
+ .ptr3 = 0x0D861A80ul,
+ .ptr4 = 0x0C827100ul,
+ .dcr_mask = (PDQ_MASK | MPRDQ_MASK | BYTEMASK_MASK),
+ .dcr_val = ((1 << 10)),
+ .dtpr0 = 0xA19DBB66ul,
+ .dtpr1 = 0x32868300ul,
+ .dtpr2 = 0x50035200ul,
+ .mr0 = 0x00001C70ul,
+ .mr1 = 0x00000006ul,
+ .mr2 = 0x00000018ul,
+ .dtcr = 0x730035C7ul,
+ .pgcr2 = 0x00F07A12ul,
+ .zq0cr1 = 0x0001005Dul,
+ .zq1cr1 = 0x0001005Bul,
+ .zq2cr1 = 0x0001005Bul,
+ .pir_v1 = 0x00000033ul,
+ .pir_v2 = 0x0000FF81ul,
+};
+
+static struct ddr3_phy_config ddr3phy_1333_64A_pg2 = {
+ .pllcr = 0x0005C000ul,
+ .pgcr1_mask = (IODDRM_MASK | ZCKSEL_MASK),
+ .pgcr1_val = ((1 << 2) | (1 << 7) | (1 << 23)),
+ .ptr0 = 0x42C21590ul,
+ .ptr1 = 0xD05612C0ul,
+ .ptr2 = 0, /* not set in gel */
+ .ptr3 = 0x0B4515C2ul,
+ .ptr4 = 0x0A6E08B4ul,
+ .dcr_mask = (PDQ_MASK | MPRDQ_MASK | BYTEMASK_MASK),
+ .dcr_val = ((1 << 10)),
+ .dtpr0 = 0x8558AA55ul,
+ .dtpr1 = 0x32857280ul,
+ .dtpr2 = 0x5002C200ul,
+ .mr0 = 0x00001A60ul,
+ .mr1 = 0x00000006ul,
+ .mr2 = 0x00000010ul,
+ .dtcr = 0x710035C7ul,
+ .pgcr2 = 0x00F065B8ul,
+ .zq0cr1 = 0x0001005Dul,
+ .zq1cr1 = 0x0001005Bul,
+ .zq2cr1 = 0x0001005Bul,
+ .pir_v1 = 0x00000033ul,
+ .pir_v2 = 0x0000FF81ul,
+};
+
int get_dimm_params(char *dimm_name)
{
u8 spd_params[256];
@@ -240,7 +295,18 @@ void ddr3_init(void)
if (!strcmp(dimm_name, "18KSF1G72HZ-1G6E2 ")) {
init_pll(&ddr3a_400);
if (cpu_revision() > 0) {
- ddr3_init_ddrphy(K2HK_DDR3A_DDRPHYC, &ddr3phy_1600_64A);
+ if (cpu_revision() > 1) {
+ /* PG 2.0 */
+ /* Reset DDR3A PHY after PLL enabled */
+ ddr3_reset_ddrphy();
+ ddr3_init_ddrphy(K2HK_DDR3A_DDRPHYC,
+ &ddr3phy_1600_64A_pg2);
+ } else {
+ /* PG 1.1 */
+ ddr3_init_ddrphy(K2HK_DDR3A_DDRPHYC,
+ &ddr3phy_1600_64A);
+ }
+
ddr3_init_ddremif(K2HK_DDR3A_EMIF_CTRL_BASE,
&ddr3_1600_64);
printf("DRAM: Capacity 8 GiB (includes reported below)\n");
@@ -253,7 +319,17 @@ void ddr3_init(void)
} else if (!strcmp(dimm_name, "SQR-SD3T-2G1333SED")) {
init_pll(&ddr3a_333);
if (cpu_revision() > 0) {
- ddr3_init_ddrphy(K2HK_DDR3A_DDRPHYC, &ddr3phy_1333_64A);
+ if (cpu_revision() > 1) {
+ /* PG 2.0 */
+ /* Reset DDR3A PHY after PLL enabled */
+ ddr3_reset_ddrphy();
+ ddr3_init_ddrphy(K2HK_DDR3A_DDRPHYC,
+ &ddr3phy_1333_64A_pg2);
+ } else {
+ /* PG 1.1 */
+ ddr3_init_ddrphy(K2HK_DDR3A_DDRPHYC,
+ &ddr3phy_1333_64A);
+ }
ddr3_init_ddremif(K2HK_DDR3A_EMIF_CTRL_BASE,
&ddr3_1333_64);
} else {
--
1.8.3.2
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