diff options
Diffstat (limited to 'arch/arm/mach-uniphier/dram')
-rw-r--r-- | arch/arm/mach-uniphier/dram/Makefile | 6 | ||||
-rw-r--r-- | arch/arm/mach-uniphier/dram/cmd_ddrmphy.c | 329 | ||||
-rw-r--r-- | arch/arm/mach-uniphier/dram/umc-ph1-pro4.c | 80 | ||||
-rw-r--r-- | arch/arm/mach-uniphier/dram/umc-proxstream2.c | 12 |
4 files changed, 398 insertions, 29 deletions
diff --git a/arch/arm/mach-uniphier/dram/Makefile b/arch/arm/mach-uniphier/dram/Makefile index cab7df1653..a0a6003065 100644 --- a/arch/arm/mach-uniphier/dram/Makefile +++ b/arch/arm/mach-uniphier/dram/Makefile @@ -2,6 +2,8 @@ # SPDX-License-Identifier: GPL-2.0+ # +ifdef CONFIG_SPL_BUILD + obj-$(CONFIG_ARCH_UNIPHIER_PH1_LD4) += umc-ph1-ld4.o \ ddrphy-training.o ddrphy-ph1-ld4.o obj-$(CONFIG_ARCH_UNIPHIER_PH1_PRO4) += umc-ph1-pro4.o \ @@ -11,5 +13,9 @@ obj-$(CONFIG_ARCH_UNIPHIER_PH1_SLD8) += umc-ph1-sld8.o \ obj-$(CONFIG_ARCH_UNIPHIER_PROXSTREAM2) += umc-proxstream2.o obj-$(CONFIG_ARCH_UNIPHIER_PH1_LD6B) += umc-proxstream2.o +else + obj-$(CONFIG_CMD_DDRPHY_DUMP) += cmd_ddrphy.o obj-$(CONFIG_CMD_DDRMPHY_DUMP) += cmd_ddrmphy.o + +endif diff --git a/arch/arm/mach-uniphier/dram/cmd_ddrmphy.c b/arch/arm/mach-uniphier/dram/cmd_ddrmphy.c new file mode 100644 index 0000000000..c18f099f2c --- /dev/null +++ b/arch/arm/mach-uniphier/dram/cmd_ddrmphy.c @@ -0,0 +1,329 @@ +/* + * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <linux/io.h> + +#include "../init.h" +#include "ddrmphy-regs.h" + +/* Select either decimal or hexadecimal */ +#if 1 +#define PRINTF_FORMAT "%2d" +#else +#define PRINTF_FORMAT "%02x" +#endif +/* field separator */ +#define FS " " + +static void __iomem *get_phy_base(int ch) +{ + return (void __iomem *)(0x5b830000 + ch * 0x00200000); +} + +static int get_nr_ch(void) +{ + const struct uniphier_board_data *bd = uniphier_get_board_param(); + + return bd->dram_ch2_width ? 3 : 2; +} + +static int get_nr_datx8(int ch) +{ + unsigned int width; + + const struct uniphier_board_data *bd = uniphier_get_board_param(); + + switch (ch) { + case 0: + width = bd->dram_ch0_width; + break; + case 1: + width = bd->dram_ch1_width; + break; + default: + width = bd->dram_ch2_width; + break; + } + + return width / 8; +} + +static void print_bdl(void __iomem *reg, int n) +{ + u32 val = readl(reg); + int i; + + for (i = 0; i < n; i++) + printf(FS PRINTF_FORMAT, (val >> i * 8) & 0x1f); +} + +static void dump_loop(void (*callback)(void __iomem *)) +{ + int ch, dx, nr_ch, nr_dx; + void __iomem *dx_base; + + nr_ch = get_nr_ch(); + + for (ch = 0; ch < nr_ch; ch++) { + dx_base = get_phy_base(ch) + DMPHY_DX_BASE; + nr_dx = get_nr_datx8(ch); + + for (dx = 0; dx < nr_dx; dx++) { + printf("CH%dDX%d:", ch, dx); + (*callback)(dx_base); + dx_base += DMPHY_DX_STRIDE; + printf("\n"); + } + } +} + +static void zq_dump(void) +{ + int ch, zq, nr_ch, nr_zq, i; + void __iomem *zq_base; + u32 dr, pr; + + printf("\n--- Impedance Data ---\n"); + printf(" ZPD ZPU OPD OPU ZDV ODV\n"); + + nr_ch = get_nr_ch(); + + for (ch = 0; ch < nr_ch; ch++) { + zq_base = get_phy_base(ch) + DMPHY_ZQ_BASE; + nr_zq = 3; + + for (zq = 0; zq < nr_zq; zq++) { + printf("CH%dZQ%d:", ch, zq); + + dr = readl(zq_base + DMPHY_ZQ_DR); + for (i = 0; i < 4; i++) { + printf(FS PRINTF_FORMAT, dr & 0x7f); + dr >>= 7; + } + + pr = readl(zq_base + DMPHY_ZQ_PR); + for (i = 0; i < 2; i++) { + printf(FS PRINTF_FORMAT, pr & 0xf); + pr >>= 4; + } + + zq_base += DMPHY_ZQ_STRIDE; + printf("\n"); + } + } +} + +static void __wbdl_dump(void __iomem *dx_base) +{ + print_bdl(dx_base + DMPHY_DX_BDLR0, 4); + print_bdl(dx_base + DMPHY_DX_BDLR1, 4); + print_bdl(dx_base + DMPHY_DX_BDLR2, 2); + + printf(FS "(+" PRINTF_FORMAT ")", + readl(dx_base + DMPHY_DX_LCDLR1) & 0xff); +} + +static void wbdl_dump(void) +{ + printf("\n--- Write Bit Delay Line ---\n"); + printf(" DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DM DQS (WDQD)\n"); + + dump_loop(&__wbdl_dump); +} + +static void __rbdl_dump(void __iomem *dx_base) +{ + print_bdl(dx_base + DMPHY_DX_BDLR3, 4); + print_bdl(dx_base + DMPHY_DX_BDLR4, 4); + print_bdl(dx_base + DMPHY_DX_BDLR5, 1); + + printf(FS "(+" PRINTF_FORMAT ")", + (readl(dx_base + DMPHY_DX_LCDLR1) >> 8) & 0xff); + + printf(FS "(+" PRINTF_FORMAT ")", + (readl(dx_base + DMPHY_DX_LCDLR1) >> 16) & 0xff); +} + +static void rbdl_dump(void) +{ + printf("\n--- Read Bit Delay Line ---\n"); + printf(" DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DM (RDQSD) (RDQSND)\n"); + + dump_loop(&__rbdl_dump); +} + +static void __wld_dump(void __iomem *dx_base) +{ + int rank; + u32 lcdlr0 = readl(dx_base + DMPHY_DX_LCDLR0); + u32 gtr = readl(dx_base + DMPHY_DX_GTR); + + for (rank = 0; rank < 4; rank++) { + u32 wld = (lcdlr0 >> (8 * rank)) & 0xff; /* Delay */ + u32 wlsl = (gtr >> (12 + 2 * rank)) & 0x3; /* System Latency */ + + printf(FS PRINTF_FORMAT "%sT", wld, + wlsl == 0 ? "-1" : wlsl == 1 ? "+0" : "+1"); + } +} + +static void wld_dump(void) +{ + printf("\n--- Write Leveling Delay ---\n"); + printf(" Rank0 Rank1 Rank2 Rank3\n"); + + dump_loop(&__wld_dump); +} + +static void __dqsgd_dump(void __iomem *dx_base) +{ + int rank; + u32 lcdlr2 = readl(dx_base + DMPHY_DX_LCDLR2); + u32 gtr = readl(dx_base + DMPHY_DX_GTR); + + for (rank = 0; rank < 4; rank++) { + u32 dqsgd = (lcdlr2 >> (8 * rank)) & 0xff; /* Delay */ + u32 dgsl = (gtr >> (3 * rank)) & 0x7; /* System Latency */ + + printf(FS PRINTF_FORMAT "+%dT", dqsgd, dgsl); + } +} + +static void dqsgd_dump(void) +{ + printf("\n--- DQS Gating Delay ---\n"); + printf(" Rank0 Rank1 Rank2 Rank3\n"); + + dump_loop(&__dqsgd_dump); +} + +static void __mdl_dump(void __iomem *dx_base) +{ + int i; + u32 mdl = readl(dx_base + DMPHY_DX_MDLR); + + for (i = 0; i < 3; i++) + printf(FS PRINTF_FORMAT, (mdl >> (8 * i)) & 0xff); +} + +static void mdl_dump(void) +{ + printf("\n--- Master Delay Line ---\n"); + printf(" IPRD TPRD MDLD\n"); + + dump_loop(&__mdl_dump); +} + +#define REG_DUMP(x) \ + { int ofst = DMPHY_ ## x; void __iomem *reg = phy_base + ofst; \ + printf("%3d: %-10s: %p : %08x\n", \ + ofst >> DMPHY_SHIFT, #x, reg, readl(reg)); } + +#define DX_REG_DUMP(dx, x) \ + { int ofst = DMPHY_DX_BASE + DMPHY_DX_STRIDE * (dx) + \ + DMPHY_DX_## x; \ + void __iomem *reg = phy_base + ofst; \ + printf("%3d: DX%d%-7s: %p : %08x\n", \ + ofst >> DMPHY_SHIFT, (dx), #x, reg, readl(reg)); } + +static void reg_dump(void) +{ + int ch, dx, nr_ch, nr_dx; + void __iomem *phy_base; + + printf("\n--- DDR PHY registers ---\n"); + + nr_ch = get_nr_ch(); + + for (ch = 0; ch < nr_ch; ch++) { + phy_base = get_phy_base(ch); + nr_dx = get_nr_datx8(ch); + + printf("== Ch%d ==\n", ch); + printf(" No: Name : Address : Data\n"); + + REG_DUMP(RIDR); + REG_DUMP(PIR); + REG_DUMP(PGCR0); + REG_DUMP(PGCR1); + REG_DUMP(PGCR2); + REG_DUMP(PGCR3); + REG_DUMP(PGSR0); + REG_DUMP(PGSR1); + REG_DUMP(PLLCR); + REG_DUMP(PTR0); + REG_DUMP(PTR1); + REG_DUMP(PTR2); + REG_DUMP(PTR3); + REG_DUMP(PTR4); + REG_DUMP(ACMDLR); + REG_DUMP(ACBDLR0); + REG_DUMP(DXCCR); + REG_DUMP(DSGCR); + REG_DUMP(DCR); + REG_DUMP(DTPR0); + REG_DUMP(DTPR1); + REG_DUMP(DTPR2); + REG_DUMP(DTPR3); + REG_DUMP(MR0); + REG_DUMP(MR1); + REG_DUMP(MR2); + REG_DUMP(MR3); + + for (dx = 0; dx < nr_dx; dx++) { + DX_REG_DUMP(dx, GCR0); + DX_REG_DUMP(dx, GCR1); + DX_REG_DUMP(dx, GCR2); + DX_REG_DUMP(dx, GCR3); + DX_REG_DUMP(dx, GTR); + } + } +} + +static int do_ddrm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + char *cmd = argv[1]; + + if (argc == 1) + cmd = "all"; + + if (!strcmp(cmd, "zq") || !strcmp(cmd, "all")) + zq_dump(); + + if (!strcmp(cmd, "wbdl") || !strcmp(cmd, "all")) + wbdl_dump(); + + if (!strcmp(cmd, "rbdl") || !strcmp(cmd, "all")) + rbdl_dump(); + + if (!strcmp(cmd, "wld") || !strcmp(cmd, "all")) + wld_dump(); + + if (!strcmp(cmd, "dqsgd") || !strcmp(cmd, "all")) + dqsgd_dump(); + + if (!strcmp(cmd, "mdl") || !strcmp(cmd, "all")) + mdl_dump(); + + if (!strcmp(cmd, "reg") || !strcmp(cmd, "all")) + reg_dump(); + + return 0; +} + +U_BOOT_CMD( + ddrm, 2, 1, do_ddrm, + "UniPhier DDR PHY parameters dumper", + "- dump all of the followings\n" + "ddrm zq - dump Impedance Data\n" + "ddrm wbdl - dump Write Bit Delay\n" + "ddrm rbdl - dump Read Bit Delay\n" + "ddrm wld - dump Write Leveling\n" + "ddrm dqsgd - dump DQS Gating Delay\n" + "ddrm mdl - dump Master Delay Line\n" + "ddrm reg - dump registers\n" +); diff --git a/arch/arm/mach-uniphier/dram/umc-ph1-pro4.c b/arch/arm/mach-uniphier/dram/umc-ph1-pro4.c index 4d976e3a97..261f7cfce7 100644 --- a/arch/arm/mach-uniphier/dram/umc-ph1-pro4.c +++ b/arch/arm/mach-uniphier/dram/umc-ph1-pro4.c @@ -13,6 +13,16 @@ #include "ddrphy-regs.h" #include "umc-regs.h" +enum dram_size { + DRAM_SZ_128M, + DRAM_SZ_256M, + DRAM_SZ_512M, + DRAM_SZ_NR, +}; + +static u32 umc_initctlb[DRAM_SZ_NR] = {0x43030d3f, 0x43030d3f, 0x7b030d3f}; +static u32 umc_spcctla[DRAM_SZ_NR] = {0x002b0617, 0x003f0617, 0x00770617}; + static void umc_start_ssif(void __iomem *ssif_base) { writel(0x00000001, ssif_base + 0x0000b004); @@ -56,19 +66,36 @@ static void umc_start_ssif(void __iomem *ssif_base) writel(0x00000001, ssif_base + UMC_DMDRST); } -static void umc_dramcont_init(void __iomem *dramcont, void __iomem *ca_base, - int size, int freq) +static int umc_dramcont_init(void __iomem *dramcont, void __iomem *ca_base, + int size, int width) { + enum dram_size dram_size; + + switch (size / (width / 16)) { + case SZ_128M: + dram_size = DRAM_SZ_128M; + break; + case SZ_256M: + dram_size = DRAM_SZ_256M; + break; + case SZ_512M: + dram_size = DRAM_SZ_512M; + break; + default: + printf("unsupported DRAM size\n"); + return -EINVAL; + } + writel(0x66bb0f17, dramcont + UMC_CMDCTLA); writel(0x18c6aa44, dramcont + UMC_CMDCTLB); writel(0x5101387f, dramcont + UMC_INITCTLA); - writel(0x43030d3f, dramcont + UMC_INITCTLB); + writel(umc_initctlb[dram_size], dramcont + UMC_INITCTLB); writel(0x00ff00ff, dramcont + UMC_INITCTLC); writel(0x00000d71, dramcont + UMC_DRMMR0); writel(0x00000006, dramcont + UMC_DRMMR1); writel(0x00000298, dramcont + UMC_DRMMR2); writel(0x00000000, dramcont + UMC_DRMMR3); - writel(0x003f0617, dramcont + UMC_SPCCTLA); + writel(umc_spcctla[dram_size], dramcont + UMC_SPCCTLA); writel(0x00ff0008, dramcont + UMC_SPCCTLB); writel(0x000c00ae, dramcont + UMC_RDATACTL_D0); writel(0x000c00ae, dramcont + UMC_RDATACTL_D1); @@ -90,9 +117,11 @@ static void umc_dramcont_init(void __iomem *dramcont, void __iomem *ca_base, writel(0x200a0a00, dramcont + UMC_SPCSETB); writel(0x00010000, dramcont + UMC_SPCSETD); writel(0x80000020, dramcont + UMC_DFICUPDCTLA); + + return 0; } -static int umc_init_sub(int freq, int size_ch0, int size_ch1) +int ph1_pro4_umc_init(const struct uniphier_board_data *bd) { void __iomem *ssif_base = (void __iomem *)UMC_SSIF_BASE; void __iomem *ca_base0 = (void __iomem *)UMC_CA_BASE(0); @@ -103,6 +132,12 @@ static int umc_init_sub(int freq, int size_ch0, int size_ch1) void __iomem *phy0_1 = (void __iomem *)DDRPHY_BASE(0, 1); void __iomem *phy1_0 = (void __iomem *)DDRPHY_BASE(1, 0); void __iomem *phy1_1 = (void __iomem *)DDRPHY_BASE(1, 1); + int ret; + + if (bd->dram_freq != 1600) { + pr_err("Unsupported DDR configuration\n"); + return -EINVAL; + } umc_dram_init_start(dramcont0); umc_dram_init_start(dramcont1); @@ -111,52 +146,43 @@ static int umc_init_sub(int freq, int size_ch0, int size_ch1) writel(0x00000101, dramcont0 + UMC_DIOCTLA); - ph1_pro4_ddrphy_init(phy0_0, freq, size_ch0); + ph1_pro4_ddrphy_init(phy0_0, bd->dram_freq, bd->dram_ch0_size); ddrphy_prepare_training(phy0_0, 0); ddrphy_training(phy0_0); writel(0x00000103, dramcont0 + UMC_DIOCTLA); - ph1_pro4_ddrphy_init(phy0_1, freq, size_ch0); + ph1_pro4_ddrphy_init(phy0_1, bd->dram_freq, bd->dram_ch0_size); ddrphy_prepare_training(phy0_1, 1); ddrphy_training(phy0_1); writel(0x00000101, dramcont1 + UMC_DIOCTLA); - ph1_pro4_ddrphy_init(phy1_0, freq, size_ch1); + ph1_pro4_ddrphy_init(phy1_0, bd->dram_freq, bd->dram_ch1_size); ddrphy_prepare_training(phy1_0, 0); ddrphy_training(phy1_0); writel(0x00000103, dramcont1 + UMC_DIOCTLA); - ph1_pro4_ddrphy_init(phy1_1, freq, size_ch1); + ph1_pro4_ddrphy_init(phy1_1, bd->dram_freq, bd->dram_ch1_size); ddrphy_prepare_training(phy1_1, 1); ddrphy_training(phy1_1); - umc_dramcont_init(dramcont0, ca_base0, size_ch0, freq); - umc_dramcont_init(dramcont1, ca_base1, size_ch1, freq); + ret = umc_dramcont_init(dramcont0, ca_base0, bd->dram_ch0_size, + bd->dram_ch0_width); + if (ret) + return ret; + + ret = umc_dramcont_init(dramcont1, ca_base1, bd->dram_ch1_size, + bd->dram_ch1_width); + if (ret) + return ret; umc_start_ssif(ssif_base); return 0; } - -int ph1_pro4_umc_init(const struct uniphier_board_data *bd) -{ - if (((bd->dram_ch0_size == SZ_512M && bd->dram_ch0_width == 32) || - (bd->dram_ch0_size == SZ_256M && bd->dram_ch0_width == 16)) && - ((bd->dram_ch1_size == SZ_512M && bd->dram_ch1_width == 32) || - (bd->dram_ch1_size == SZ_256M && bd->dram_ch1_width == 16)) && - bd->dram_freq == 1600) { - return umc_init_sub(bd->dram_freq, - bd->dram_ch0_size / SZ_128M, - bd->dram_ch1_size / SZ_128M); - } else { - pr_err("Unsupported DDR configuration\n"); - return -EINVAL; - } -} diff --git a/arch/arm/mach-uniphier/dram/umc-proxstream2.c b/arch/arm/mach-uniphier/dram/umc-proxstream2.c index bb7acdee1e..6e7fa885c4 100644 --- a/arch/arm/mach-uniphier/dram/umc-proxstream2.c +++ b/arch/arm/mach-uniphier/dram/umc-proxstream2.c @@ -18,6 +18,8 @@ #include "ddrmphy-regs.h" #include "umc-regs.h" +#define CH_NR 3 + enum dram_freq { FREQ_1866M, FREQ_2133M, @@ -43,6 +45,9 @@ static u32 ddrphy_dtpr3[FREQ_NR] = {0x0010cb49, 0x0010ec89}; static u32 ddrphy_mr0[FREQ_NR] = {0x00000115, 0x00000125}; static u32 ddrphy_mr2[FREQ_NR] = {0x000002a0, 0x000002a8}; +/* dependent on package and board design */ +static u32 ddrphy_acbdlr0[CH_NR] = {0x0000000c, 0x0000000c, 0x00000009}; + static u32 umc_cmdctla[FREQ_NR] = {0x66DD131D, 0x77EE1722}; /* * The ch2 is a different generation UMC core. @@ -150,7 +155,8 @@ static int ddrphy_get_system_latency(void __iomem *phy_base, int width) return dgsl_max; } -static void ddrphy_init(void __iomem *phy_base, enum dram_freq freq, int width) +static void ddrphy_init(void __iomem *phy_base, enum dram_freq freq, int width, + int ch) { u32 tmp; void __iomem *zq_base, *dx_base; @@ -178,6 +184,8 @@ static void ddrphy_init(void __iomem *phy_base, enum dram_freq freq, int width) writel(ddrphy_ptr3[freq], phy_base + DMPHY_PTR3); writel(ddrphy_ptr4[freq], phy_base + DMPHY_PTR4); + writel(ddrphy_acbdlr0[ch], phy_base + DMPHY_ACBDLR0); + writel(0x55555555, phy_base + DMPHY_ACIOCR1); writel(0x00000000, phy_base + DMPHY_ACIOCR2); writel(0x55555555, phy_base + DMPHY_ACIOCR3); @@ -528,7 +536,7 @@ static int umc_init(void __iomem *umc_base, enum dram_freq freq, int ch, writel(UMC_DIOCTLA_CTL_NRST | UMC_DIOCTLA_CFG_NRST, umc_dc_base + UMC_DIOCTLA); - ddrphy_init(phy_base, freq, width); + ddrphy_init(phy_base, freq, width, ch); ret = ddrphy_impedance_calibration(phy_base); if (ret) |