keystone2: ddr: add DDR3 PHY configs updated for PG 2.0

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@ti.com>
Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>

diff --git a/arch/arm/cpu/armv7/keystone/ddr3.c b/arch/arm/cpu/armv7/keystone/ddr3.c
index bb16551eb2c64faaec5fa2a1b993f3299a188dbe..b711b810cbd61d89b7038fc00fe3efd42547ab31 100644 (file)
--- 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 05b7e2920d063c1de7a31cc13f7cb801421d566b..4d229a25fa1bc4bce2eddd9862783cae5e1454c2 100644 (file)
--- 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 f8f986ca603e59ad02cc105b1c30af9f37f65518..db2d36bfb61c553cd2fc36355db019e1a6a730d6 100644 (file)
--- 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 0085f291b5ebdcf5359de2f28672a53a3137dc6a..b604266837b82c0fbf3bc6908026a20a4c92da37 100644 (file)
--- 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 {