#include <asm/io.h>
#include <common.h>
+#include <asm/arch/msmc.h>
#include <asm/arch/ddr3.h>
+#include <asm/arch/psc_defs.h>
+
+#include <asm/ti-common/ti-edma3.h>
+
+#define DDR3_EDMA_BLK_SIZE_SHIFT 10
+#define DDR3_EDMA_BLK_SIZE (1 << DDR3_EDMA_BLK_SIZE_SHIFT)
+#define DDR3_EDMA_BCNT 0x8000
+#define DDR3_EDMA_CCNT 1
+#define DDR3_EDMA_XF_SIZE (DDR3_EDMA_BLK_SIZE * DDR3_EDMA_BCNT)
+#define DDR3_EDMA_SLOT_NUM 1
void ddr3_init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg)
{
__raw_writel(emif_cfg->sdrfc, base + KS2_DDR3_SDRFC_OFFSET);
}
+int ddr3_ecc_support_rmw(u32 base)
+{
+ u32 value = __raw_readl(base + KS2_DDR3_MIDR_OFFSET);
+
+ /* Check the DDR3 controller ID reg if the controllers
+ supports ECC RMW or not */
+ if (value == 0x40461C02)
+ return 1;
+
+ return 0;
+}
+
+static void ddr3_ecc_config(u32 base, u32 value)
+{
+ u32 data;
+
+ __raw_writel(value, base + KS2_DDR3_ECC_CTRL_OFFSET);
+ udelay(100000); /* delay required to synchronize across clock domains */
+
+ if (value & KS2_DDR3_ECC_EN) {
+ /* Clear the 1-bit error count */
+ data = __raw_readl(base + KS2_DDR3_ONE_BIT_ECC_ERR_CNT_OFFSET);
+ __raw_writel(data, base + KS2_DDR3_ONE_BIT_ECC_ERR_CNT_OFFSET);
+
+ /* enable the ECC interrupt */
+ __raw_writel(KS2_DDR3_1B_ECC_ERR_SYS | KS2_DDR3_2B_ECC_ERR_SYS |
+ KS2_DDR3_WR_ECC_ERR_SYS,
+ base + KS2_DDR3_ECC_INT_ENABLE_SET_SYS_OFFSET);
+
+ /* Clear the ECC error interrupt status */
+ __raw_writel(KS2_DDR3_1B_ECC_ERR_SYS | KS2_DDR3_2B_ECC_ERR_SYS |
+ KS2_DDR3_WR_ECC_ERR_SYS,
+ base + KS2_DDR3_ECC_INT_STATUS_OFFSET);
+ }
+}
+
+static void ddr3_reset_data(u32 base, u32 ddr3_size)
+{
+ u32 mpax[2];
+ u32 seg_num;
+ u32 seg, blks, dst, edma_blks;
+ struct edma3_slot_config slot;
+ struct edma3_channel_config edma_channel;
+ u32 edma_src[DDR3_EDMA_BLK_SIZE/4] __aligned(16) = {0, };
+
+ /* Setup an edma to copy the 1k block to the entire DDR */
+ puts("\nClear entire DDR3 memory to enable ECC\n");
+
+ /* save the SES MPAX regs */
+ msmc_get_ses_mpax(8, 0, mpax);
+
+ /* setup edma slot 1 configuration */
+ slot.opt = EDMA3_SLOPT_TRANS_COMP_INT_ENB |
+ EDMA3_SLOPT_COMP_CODE(0) |
+ EDMA3_SLOPT_STATIC | EDMA3_SLOPT_AB_SYNC;
+ slot.bcnt = DDR3_EDMA_BCNT;
+ slot.acnt = DDR3_EDMA_BLK_SIZE;
+ slot.ccnt = DDR3_EDMA_CCNT;
+ slot.src_bidx = 0;
+ slot.dst_bidx = DDR3_EDMA_BLK_SIZE;
+ slot.src_cidx = 0;
+ slot.dst_cidx = 0;
+ slot.link = EDMA3_PARSET_NULL_LINK;
+ slot.bcntrld = 0;
+ edma3_slot_configure(KS2_EDMA0_BASE, DDR3_EDMA_SLOT_NUM, &slot);
+
+ /* configure quik edma channel */
+ edma_channel.slot = DDR3_EDMA_SLOT_NUM;
+ edma_channel.chnum = 0;
+ edma_channel.complete_code = 0;
+ /* event trigger after dst update */
+ edma_channel.trigger_slot_word = EDMA3_TWORD(dst);
+ qedma3_start(KS2_EDMA0_BASE, &edma_channel);
+
+ /* DDR3 size in segments (4KB seg size) */
+ seg_num = ddr3_size << (30 - KS2_MSMC_SEG_SIZE_SHIFT);
+
+ for (seg = 0; seg < seg_num; seg += KS2_MSMC_MAP_SEG_NUM) {
+ /* map 2GB 36-bit DDR address to 32-bit DDR address in EMIF
+ access slave interface so that edma driver can access */
+ msmc_map_ses_segment(8, 0, base >> KS2_MSMC_SEG_SIZE_SHIFT,
+ KS2_MSMC_DST_SEG_BASE + seg, MPAX_SEG_2G);
+
+ if ((seg_num - seg) > KS2_MSMC_MAP_SEG_NUM)
+ edma_blks = KS2_MSMC_MAP_SEG_NUM <<
+ (KS2_MSMC_SEG_SIZE_SHIFT
+ - DDR3_EDMA_BLK_SIZE_SHIFT);
+ else
+ edma_blks = (seg_num - seg) << (KS2_MSMC_SEG_SIZE_SHIFT
+ - DDR3_EDMA_BLK_SIZE_SHIFT);
+
+ /* Use edma driver to scrub 2GB DDR memory */
+ for (dst = base, blks = 0; blks < edma_blks;
+ blks += DDR3_EDMA_BCNT, dst += DDR3_EDMA_XF_SIZE) {
+ edma3_set_src_addr(KS2_EDMA0_BASE,
+ edma_channel.slot, (u32)edma_src);
+ edma3_set_dest_addr(KS2_EDMA0_BASE,
+ edma_channel.slot, (u32)dst);
+
+ while (edma3_check_for_transfer(KS2_EDMA0_BASE,
+ &edma_channel))
+ udelay(10);
+ }
+ }
+
+ qedma3_stop(KS2_EDMA0_BASE, &edma_channel);
+
+ /* restore the SES MPAX regs */
+ msmc_set_ses_mpax(8, 0, mpax);
+}
+
+static void ddr3_ecc_init_range(u32 base)
+{
+ u32 ecc_val = KS2_DDR3_ECC_EN;
+ u32 rmw = ddr3_ecc_support_rmw(base);
+
+ if (rmw)
+ ecc_val |= KS2_DDR3_ECC_RMW_EN;
+
+ __raw_writel(0, base + KS2_DDR3_ECC_ADDR_RANGE1_OFFSET);
+
+ ddr3_ecc_config(base, ecc_val);
+}
+
+void ddr3_enable_ecc(u32 base, int test)
+{
+ u32 ecc_val = KS2_DDR3_ECC_ENABLE;
+ u32 rmw = ddr3_ecc_support_rmw(base);
+
+ if (test)
+ ecc_val |= KS2_DDR3_ECC_ADDR_RNG_1_EN;
+
+ if (!rmw) {
+ if (!test)
+ /* by default, disable ecc when rmw = 0 and no
+ ecc test */
+ ecc_val = 0;
+ } else {
+ ecc_val |= KS2_DDR3_ECC_RMW_EN;
+ }
+
+ ddr3_ecc_config(base, ecc_val);
+}
+
+void ddr3_disable_ecc(u32 base)
+{
+ ddr3_ecc_config(base, 0);
+}
+
+#if defined(CONFIG_SOC_K2HK) || defined(CONFIG_SOC_K2L)
+static void cic_init(u32 base)
+{
+ /* Disable CIC global interrupts */
+ __raw_writel(0, base + KS2_CIC_GLOBAL_ENABLE);
+
+ /* Set to normal mode, no nesting, no priority hold */
+ __raw_writel(0, base + KS2_CIC_CTRL);
+ __raw_writel(0, base + KS2_CIC_HOST_CTRL);
+
+ /* Enable CIC global interrupts */
+ __raw_writel(1, base + KS2_CIC_GLOBAL_ENABLE);
+}
+
+static void cic_map_cic_to_gic(u32 base, u32 chan_num, u32 irq_num)
+{
+ /* Map the system interrupt to a CIC channel */
+ __raw_writeb(chan_num, base + KS2_CIC_CHAN_MAP(0) + irq_num);
+
+ /* Enable CIC system interrupt */
+ __raw_writel(irq_num, base + KS2_CIC_SYS_ENABLE_IDX_SET);
+
+ /* Enable CIC Host interrupt */
+ __raw_writel(chan_num, base + KS2_CIC_HOST_ENABLE_IDX_SET);
+}
+
+static void ddr3_map_ecc_cic2_irq(u32 base)
+{
+ cic_init(base);
+ cic_map_cic_to_gic(base, KS2_CIC2_DDR3_ECC_CHAN_NUM,
+ KS2_CIC2_DDR3_ECC_IRQ_NUM);
+}
+#endif
+
+void ddr3_init_ecc(u32 base)
+{
+ u32 ddr3_size;
+
+ if (!ddr3_ecc_support_rmw(base)) {
+ ddr3_disable_ecc(base);
+ return;
+ }
+
+ ddr3_ecc_init_range(base);
+ ddr3_size = ddr3_get_size();
+ ddr3_reset_data(CONFIG_SYS_SDRAM_BASE, ddr3_size);
+
+ /* mapping DDR3 ECC system interrupt from CIC2 to GIC */
+#if defined(CONFIG_SOC_K2HK) || defined(CONFIG_SOC_K2L)
+ ddr3_map_ecc_cic2_irq(KS2_CIC2_BASE);
+#endif
+ ddr3_enable_ecc(base, 0);
+}
+
+void ddr3_check_ecc_int(u32 base)
+{
+ char *env;
+ int ecc_test = 0;
+ u32 value = __raw_readl(base + KS2_DDR3_ECC_INT_STATUS_OFFSET);
+
+ env = getenv("ecc_test");
+ if (env)
+ ecc_test = simple_strtol(env, NULL, 0);
+
+ if (value & KS2_DDR3_WR_ECC_ERR_SYS)
+ puts("DDR3 ECC write error interrupted\n");
+
+ if (value & KS2_DDR3_2B_ECC_ERR_SYS) {
+ puts("DDR3 ECC 2-bit error interrupted\n");
+
+ if (!ecc_test) {
+ puts("Reseting the device ...\n");
+ reset_cpu(0);
+ }
+ }
+
+ value = __raw_readl(base + KS2_DDR3_ONE_BIT_ECC_ERR_CNT_OFFSET);
+ if (value) {
+ printf("1-bit ECC err count: 0x%x\n", value);
+ value = __raw_readl(base +
+ KS2_DDR3_ONE_BIT_ECC_ERR_ADDR_LOG_OFFSET);
+ printf("1-bit ECC err address log: 0x%x\n", value);
+ }
+}
+
void ddr3_reset_ddrphy(void)
{
u32 tmp;
tmp &= ~KS2_DDR3_PLLCTRL_PHY_RESET;
__raw_writel(tmp, KS2_DDR3APLLCTL1);
}
+
+#ifdef CONFIG_SOC_K2HK
+/**
+ * ddr3_reset_workaround - reset workaround in case if leveling error
+ * detected for PG 1.0 and 1.1 k2hk SoCs
+ */
+void ddr3_err_reset_workaround(void)
+{
+ unsigned int tmp;
+ unsigned int tmp_a;
+ unsigned int tmp_b;
+
+ /*
+ * Check for PGSR0 error bits of DDR3 PHY.
+ * Check for WLERR, QSGERR, WLAERR,
+ * RDERR, WDERR, REERR, WEERR error to see if they are set or not
+ */
+ tmp_a = __raw_readl(KS2_DDR3A_DDRPHYC + KS2_DDRPHY_PGSR0_OFFSET);
+ tmp_b = __raw_readl(KS2_DDR3B_DDRPHYC + KS2_DDRPHY_PGSR0_OFFSET);
+
+ if (((tmp_a & 0x0FE00000) != 0) || ((tmp_b & 0x0FE00000) != 0)) {
+ printf("DDR Leveling Error Detected!\n");
+ printf("DDR3A PGSR0 = 0x%x\n", tmp_a);
+ printf("DDR3B PGSR0 = 0x%x\n", tmp_b);
+
+ /*
+ * Write Keys to KICK registers to enable writes to registers
+ * in boot config space
+ */
+ __raw_writel(KS2_KICK0_MAGIC, KS2_KICK0);
+ __raw_writel(KS2_KICK1_MAGIC, KS2_KICK1);
+
+ /*
+ * Move DDR3A Module out of reset isolation by setting
+ * MDCTL23[12] = 0
+ */
+ tmp_a = __raw_readl(KS2_PSC_BASE +
+ PSC_REG_MDCTL(KS2_LPSC_EMIF4F_DDR3A));
+
+ tmp_a = PSC_REG_MDCTL_SET_RESET_ISO(tmp_a, 0);
+ __raw_writel(tmp_a, KS2_PSC_BASE +
+ PSC_REG_MDCTL(KS2_LPSC_EMIF4F_DDR3A));
+
+ /*
+ * Move DDR3B Module out of reset isolation by setting
+ * MDCTL24[12] = 0
+ */
+ tmp_b = __raw_readl(KS2_PSC_BASE +
+ PSC_REG_MDCTL(KS2_LPSC_EMIF4F_DDR3B));
+ tmp_b = PSC_REG_MDCTL_SET_RESET_ISO(tmp_b, 0);
+ __raw_writel(tmp_b, KS2_PSC_BASE +
+ PSC_REG_MDCTL(KS2_LPSC_EMIF4F_DDR3B));
+
+ /*
+ * Write 0x5A69 Key to RSTCTRL[15:0] to unlock writes
+ * to RSTCTRL and RSTCFG
+ */
+ tmp = __raw_readl(KS2_RSTCTRL);
+ tmp &= KS2_RSTCTRL_MASK;
+ tmp |= KS2_RSTCTRL_KEY;
+ __raw_writel(tmp, KS2_RSTCTRL);
+
+ /*
+ * Set PLL Controller to drive hard reset on SW trigger by
+ * setting RSTCFG[13] = 0
+ */
+ tmp = __raw_readl(KS2_RSTCTRL_RSCFG);
+ tmp &= ~KS2_RSTYPE_PLL_SOFT;
+ __raw_writel(tmp, KS2_RSTCTRL_RSCFG);
+
+ reset_cpu(0);
+ }
+}
+#endif
projects / karo-tx-uboot.git / blobdiff