Merge branch 'master' of git://git.denx.de/u-boot-arm

1 files changed, 69 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/keystone/ddr3.c b/arch/arm/cpu/armv7/keystone/ddr3.c
new file mode 100644
index 0000000..4875db7
--- /dev/null
+++ b/arch/arm/cpu/armv7/keystone/ddr3.c
@@ -0,0 +1,69 @@
+/*
+ * Keystone2: DDR3 initialization
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+
+void init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg)
+{
+	unsigned int tmp;
+
+	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET)
+		 & 0x00000001) != 0x00000001)
+		;
+
+	__raw_writel(phy_cfg->pllcr, base + KS2_DDRPHY_PLLCR_OFFSET);
+
+	tmp = __raw_readl(base + KS2_DDRPHY_PGCR1_OFFSET);
+	tmp &= ~(phy_cfg->pgcr1_mask);
+	tmp |= phy_cfg->pgcr1_val;
+	__raw_writel(tmp, base + KS2_DDRPHY_PGCR1_OFFSET);
+
+	__raw_writel(phy_cfg->ptr0,   base + KS2_DDRPHY_PTR0_OFFSET);
+	__raw_writel(phy_cfg->ptr1,   base + KS2_DDRPHY_PTR1_OFFSET);
+	__raw_writel(phy_cfg->ptr3,  base + KS2_DDRPHY_PTR3_OFFSET);
+	__raw_writel(phy_cfg->ptr4,  base + KS2_DDRPHY_PTR4_OFFSET);
+
+	tmp =  __raw_readl(base + KS2_DDRPHY_DCR_OFFSET);
+	tmp &= ~(phy_cfg->dcr_mask);
+	tmp |= phy_cfg->dcr_val;
+	__raw_writel(tmp, base + KS2_DDRPHY_DCR_OFFSET);
+
+	__raw_writel(phy_cfg->dtpr0, base + KS2_DDRPHY_DTPR0_OFFSET);
+	__raw_writel(phy_cfg->dtpr1, base + KS2_DDRPHY_DTPR1_OFFSET);
+	__raw_writel(phy_cfg->dtpr2, base + KS2_DDRPHY_DTPR2_OFFSET);
+	__raw_writel(phy_cfg->mr0,   base + KS2_DDRPHY_MR0_OFFSET);
+	__raw_writel(phy_cfg->mr1,   base + KS2_DDRPHY_MR1_OFFSET);
+	__raw_writel(phy_cfg->mr2,   base + KS2_DDRPHY_MR2_OFFSET);
+	__raw_writel(phy_cfg->dtcr,  base + KS2_DDRPHY_DTCR_OFFSET);
+	__raw_writel(phy_cfg->pgcr2, base + KS2_DDRPHY_PGCR2_OFFSET);
+
+	__raw_writel(phy_cfg->zq0cr1, base + KS2_DDRPHY_ZQ0CR1_OFFSET);
+	__raw_writel(phy_cfg->zq1cr1, base + KS2_DDRPHY_ZQ1CR1_OFFSET);
+	__raw_writel(phy_cfg->zq2cr1, base + KS2_DDRPHY_ZQ2CR1_OFFSET);
+
+	__raw_writel(phy_cfg->pir_v1, base + KS2_DDRPHY_PIR_OFFSET);
+	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET) & 0x1) != 0x1)
+		;
+
+	__raw_writel(phy_cfg->pir_v2, base + KS2_DDRPHY_PIR_OFFSET);
+	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET) & 0x1) != 0x1)
+		;
+}
+
+void init_ddremif(u32 base, struct ddr3_emif_config *emif_cfg)
+{
+	__raw_writel(emif_cfg->sdcfg,  base + KS2_DDR3_SDCFG_OFFSET);
+	__raw_writel(emif_cfg->sdtim1, base + KS2_DDR3_SDTIM1_OFFSET);
+	__raw_writel(emif_cfg->sdtim2, base + KS2_DDR3_SDTIM2_OFFSET);
+	__raw_writel(emif_cfg->sdtim3, base + KS2_DDR3_SDTIM3_OFFSET);
+	__raw_writel(emif_cfg->sdtim4, base + KS2_DDR3_SDTIM4_OFFSET);
+	__raw_writel(emif_cfg->zqcfg,  base + KS2_DDR3_ZQCFG_OFFSET);
+	__raw_writel(emif_cfg->sdrfc,  base + KS2_DDR3_SDRFC_OFFSET);
+}