diff options
Diffstat (limited to 'arch/arm/mach-uniphier/ph1-pro4/umc_init.c')
| -rw-r--r-- | arch/arm/mach-uniphier/ph1-pro4/umc_init.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/ph1-pro4/umc_init.c b/arch/arm/mach-uniphier/ph1-pro4/umc_init.c new file mode 100644 index 0000000..6cbb6b2 --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-pro4/umc_init.c @@ -0,0 +1,157 @@ +/* + * Copyright (C) 2011-2014 Panasonic Corporation + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <mach/umc-regs.h> +#include <mach/ddrphy-regs.h> + +static void umc_start_ssif(void __iomem *ssif_base) +{ + writel(0x00000001, ssif_base + 0x0000b004); + writel(0xffffffff, ssif_base + 0x0000c004); + writel(0x07ffffff, ssif_base + 0x0000c008); + writel(0x00000001, ssif_base + 0x0000b000); + writel(0x00000001, ssif_base + 0x0000c000); + + writel(0x03010100, ssif_base + UMC_HDMCHSEL); + writel(0x03010101, ssif_base + UMC_MDMCHSEL); + writel(0x03010100, ssif_base + UMC_DVCCHSEL); + writel(0x03010100, ssif_base + UMC_DMDCHSEL); + + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_FETCH); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMQUE0); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMWC0); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMRC0); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMQUE1); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMWC1); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMRC1); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_WC); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_RC); + writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_DST); + writel(0x00000000, ssif_base + 0x0000c044); /* DCGIV_SSIF_REG */ + + writel(0x00000001, ssif_base + UMC_CPURST); + writel(0x00000001, ssif_base + UMC_IDSRST); + writel(0x00000001, ssif_base + UMC_IXMRST); + writel(0x00000001, ssif_base + UMC_HDMRST); + writel(0x00000001, ssif_base + UMC_MDMRST); + writel(0x00000001, ssif_base + UMC_HDDRST); + writel(0x00000001, ssif_base + UMC_MDDRST); + writel(0x00000001, ssif_base + UMC_SIORST); + writel(0x00000001, ssif_base + UMC_GIORST); + writel(0x00000001, ssif_base + UMC_HD2RST); + writel(0x00000001, ssif_base + UMC_VIORST); + writel(0x00000001, ssif_base + UMC_DVCRST); + writel(0x00000001, ssif_base + UMC_RGLRST); + writel(0x00000001, ssif_base + UMC_VPERST); + writel(0x00000001, ssif_base + UMC_AIORST); + writel(0x00000001, ssif_base + UMC_DMDRST); +} + +static void umc_dramcont_init(void __iomem *dramcont, void __iomem *ca_base, + int size, int freq) +{ + writel(0x66bb0f17, dramcont + UMC_CMDCTLA); + writel(0x18c6aa44, dramcont + UMC_CMDCTLB); + writel(0x5101387f, dramcont + UMC_INITCTLA); + writel(0x43030d3f, 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(0x00ff0008, dramcont + UMC_SPCCTLB); + writel(0x000c00ae, dramcont + UMC_RDATACTL_D0); + writel(0x000c00ae, dramcont + UMC_RDATACTL_D1); + writel(0x04060802, dramcont + UMC_WDATACTL_D0); + writel(0x04060802, dramcont + UMC_WDATACTL_D1); + writel(0x04a02000, dramcont + UMC_DATASET); + writel(0x00000000, ca_base + 0x2300); + writel(0x00400020, dramcont + UMC_DCCGCTL); + writel(0x0000000f, dramcont + 0x7000); + writel(0x0000000f, dramcont + 0x8000); + writel(0x000000c3, dramcont + 0x8004); + writel(0x00000071, dramcont + 0x8008); + writel(0x00000004, dramcont + UMC_FLOWCTLG); + writel(0x00000000, dramcont + 0x0060); + writel(0x80000201, ca_base + 0xc20); + writel(0x0801e01e, dramcont + UMC_FLOWCTLA); + writel(0x00200000, dramcont + UMC_FLOWCTLB); + writel(0x00004444, dramcont + UMC_FLOWCTLC); + writel(0x200a0a00, dramcont + UMC_SPCSETB); + writel(0x00010000, dramcont + UMC_SPCSETD); + writel(0x80000020, dramcont + UMC_DFICUPDCTLA); +} + +static int umc_init_sub(int freq, int size_ch0, int size_ch1) +{ + void __iomem *ssif_base = (void __iomem *)UMC_SSIF_BASE; + void __iomem *ca_base0 = (void __iomem *)UMC_CA_BASE(0); + void __iomem *ca_base1 = (void __iomem *)UMC_CA_BASE(1); + void __iomem *dramcont0 = (void __iomem *)UMC_DRAMCONT_BASE(0); + void __iomem *dramcont1 = (void __iomem *)UMC_DRAMCONT_BASE(1); + void __iomem *phy0_0 = (void __iomem *)DDRPHY_BASE(0, 0); + 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); + + umc_dram_init_start(dramcont0); + umc_dram_init_start(dramcont1); + umc_dram_init_poll(dramcont0); + umc_dram_init_poll(dramcont1); + + writel(0x00000101, dramcont0 + UMC_DIOCTLA); + + ddrphy_init(phy0_0, freq, size_ch0); + + ddrphy_prepare_training(phy0_0, 0); + ddrphy_training(phy0_0); + + writel(0x00000103, dramcont0 + UMC_DIOCTLA); + + ddrphy_init(phy0_1, freq, size_ch0); + + ddrphy_prepare_training(phy0_1, 1); + ddrphy_training(phy0_1); + + writel(0x00000101, dramcont1 + UMC_DIOCTLA); + + ddrphy_init(phy1_0, freq, size_ch1); + + ddrphy_prepare_training(phy1_0, 0); + ddrphy_training(phy1_0); + + writel(0x00000103, dramcont1 + UMC_DIOCTLA); + + ddrphy_init(phy1_1, freq, size_ch1); + + 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); + + umc_start_ssif(ssif_base); + + return 0; +} + +int umc_init(void) +{ + return umc_init_sub(CONFIG_DDR_FREQ, CONFIG_SDRAM0_SIZE / 0x08000000, + CONFIG_SDRAM1_SIZE / 0x08000000); +} + +#if ((CONFIG_SDRAM0_SIZE == 0x20000000 && CONFIG_DDR_NUM_CH0 == 2) || \ + (CONFIG_SDRAM0_SIZE == 0x10000000 && CONFIG_DDR_NUM_CH0 == 1)) && \ + ((CONFIG_SDRAM1_SIZE == 0x20000000 && CONFIG_DDR_NUM_CH1 == 2) || \ + (CONFIG_SDRAM1_SIZE == 0x10000000 && CONFIG_DDR_NUM_CH1 == 1)) +/* OK */ +#else + #error Unsupported DDR configuration. +#endif |