diff options
Diffstat (limited to 'arch/arm/mach-uniphier/dram')
| -rw-r--r-- | arch/arm/mach-uniphier/dram/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-uniphier/dram/umc-ld11.c | 124 | ||||
| -rw-r--r-- | arch/arm/mach-uniphier/dram/umc64-regs.h | 12 |
3 files changed, 137 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/dram/Makefile b/arch/arm/mach-uniphier/dram/Makefile index 41aa53b6b5..5b9d892511 100644 --- a/arch/arm/mach-uniphier/dram/Makefile +++ b/arch/arm/mach-uniphier/dram/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_ARCH_UNIPHIER_SLD8) += umc-sld8.o \ ddrphy-training.o ddrphy-ld4.o obj-$(CONFIG_ARCH_UNIPHIER_PXS2) += umc-pxs2.o obj-$(CONFIG_ARCH_UNIPHIER_LD6B) += umc-pxs2.o +obj-$(CONFIG_ARCH_UNIPHIER_LD11) += umc-ld11.o obj-$(CONFIG_ARCH_UNIPHIER_LD20) += umc-ld20.o else diff --git a/arch/arm/mach-uniphier/dram/umc-ld11.c b/arch/arm/mach-uniphier/dram/umc-ld11.c new file mode 100644 index 0000000000..1be18a867c --- /dev/null +++ b/arch/arm/mach-uniphier/dram/umc-ld11.c @@ -0,0 +1,124 @@ +/* + * Copyright (C) 2016 Socionext Inc. + */ + +#include <common.h> +#include <linux/io.h> +#include <linux/sizes.h> +#include <asm/processor.h> + +#include "../init.h" +#include "umc64-regs.h" + +#define CONFIG_DDR_FREQ 1866 + +#define DRAM_CH_NR 2 + +enum dram_freq { + DRAM_FREQ_1600M, + DRAM_FREQ_NR, +}; + +enum dram_size { + DRAM_SZ_256M, + DRAM_SZ_512M, + DRAM_SZ_NR, +}; + +/* umc */ +static u32 umc_cmdctla[DRAM_FREQ_NR] = {0x060D0D20}; +static u32 umc_cmdctlb[DRAM_FREQ_NR] = {0x2D211C08}; +static u32 umc_cmdctlc[DRAM_FREQ_NR] = {0x00150C04}; +static u32 umc_cmdctle[DRAM_FREQ_NR] = {0x0078071D}; +static u32 umc_cmdctlf[DRAM_FREQ_NR] = {0x02000200}; +static u32 umc_cmdctlg[DRAM_FREQ_NR] = {0x08080808}; + +static u32 umc_rdatactl_d0[DRAM_FREQ_NR] = {0x00000810}; +static u32 umc_rdatactl_d1[DRAM_FREQ_NR] = {0x00000810}; +static u32 umc_wdatactl_d0[DRAM_FREQ_NR] = {0x00000004}; +static u32 umc_wdatactl_d1[DRAM_FREQ_NR] = {0x00000004}; +static u32 umc_odtctl_d0[DRAM_FREQ_NR] = {0x02000002}; +static u32 umc_odtctl_d1[DRAM_FREQ_NR] = {0x02000002}; +static u32 umc_acssetb[DRAM_CH_NR] = {0x00000200, 0x00000203}; +static u32 umc_memconfch[DRAM_FREQ_NR] = {0x00023605}; + +static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq, + unsigned long size, int ch) +{ + writel(umc_cmdctla[freq], dc_base + UMC_CMDCTLA); + writel(umc_cmdctlb[freq], dc_base + UMC_CMDCTLB); + writel(umc_cmdctlc[freq], dc_base + UMC_CMDCTLC); + writel(umc_cmdctle[freq], dc_base + UMC_CMDCTLE); + writel(umc_cmdctlf[freq], dc_base + UMC_CMDCTLF); + writel(umc_cmdctlg[freq], dc_base + UMC_CMDCTLG); + + writel(umc_rdatactl_d0[freq], dc_base + UMC_RDATACTL_D0); + writel(umc_rdatactl_d1[freq], dc_base + UMC_RDATACTL_D1); + + writel(umc_wdatactl_d0[freq], dc_base + UMC_WDATACTL_D0); + writel(umc_wdatactl_d1[freq], dc_base + UMC_WDATACTL_D1); + + writel(umc_odtctl_d0[freq], dc_base + UMC_ODTCTL_D0); + writel(umc_odtctl_d1[freq], dc_base + UMC_ODTCTL_D1); + + writel(0x00000003, dc_base + UMC_ACSSETA); + writel(0x00000103, dc_base + UMC_FLOWCTLG); + writel(umc_acssetb[ch], dc_base + UMC_ACSSETB); + writel(0x02020200, dc_base + UMC_SPCSETB); + writel(umc_memconfch[freq], dc_base + UMC_MEMCONFCH); + writel(0x00000002, dc_base + UMC_ACFETCHCTRL); + + return 0; +} + +static int umc_ch_init(void __iomem *umc_ch_base, + enum dram_freq freq, unsigned long size, int ch) +{ + void __iomem *dc_base = umc_ch_base; + + return umc_dc_init(dc_base, freq, size, ch); +} + +static void um_init(void __iomem *um_base) +{ + writel(0x00000001, um_base + UMC_SIORST); + writel(0x00000001, um_base + UMC_VO0RST); + writel(0x00000001, um_base + UMC_VPERST); + writel(0x00000001, um_base + UMC_RGLRST); + writel(0x00000001, um_base + UMC_A2DRST); + writel(0x00000001, um_base + UMC_DMDRST); +} + +int uniphier_ld11_umc_init(const struct uniphier_board_data *bd) +{ + void __iomem *um_base = (void __iomem *)0x5B800000; + void __iomem *umc_ch_base = (void __iomem *)0x5BC00000; + enum dram_freq freq; + int ch, ret; + + switch (bd->dram_freq) { + case 1600: + freq = DRAM_FREQ_1600M; + break; + default: + pr_err("unsupported DRAM frequency %d MHz\n", bd->dram_freq); + return -EINVAL; + } + + for (ch = 0; ch < bd->dram_nr_ch; ch++) { + unsigned long size = bd->dram_ch[ch].size; + unsigned int width = bd->dram_ch[ch].width; + + ret = umc_ch_init(umc_ch_base, freq, size / (width / 16), ch); + if (ret) { + pr_err("failed to initialize UMC ch%d\n", ch); + return ret; + } + + umc_ch_base += 0x00200000; + } + + um_init(um_base); + + return 0; +} diff --git a/arch/arm/mach-uniphier/dram/umc64-regs.h b/arch/arm/mach-uniphier/dram/umc64-regs.h index 1b6a838a4c..860d04e381 100644 --- a/arch/arm/mach-uniphier/dram/umc64-regs.h +++ b/arch/arm/mach-uniphier/dram/umc64-regs.h @@ -18,6 +18,8 @@ #define UMC_INITSET 0x00000040 #define UMC_INITSTAT 0x00000044 #define UMC_CMDCTLE 0x00000050 +#define UMC_CMDCTLF 0x00000054 +#define UMC_CMDCTLG 0x00000058 #define UMC_SPCSETB 0x00000084 #define UMC_SPCSETB_AREFMD_MASK (0x3) /* Auto Refresh Mode */ #define UMC_SPCSETB_AREFMD_ARB (0x0) /* control by arbitor */ @@ -32,6 +34,7 @@ #define UMC_FLOWCTLA 0x00000400 #define UMC_FLOWCTLB 0x00000404 #define UMC_FLOWCTLC 0x00000408 +#define UMC_ACFETCHCTRL 0x00000460 #define UMC_FLOWCTLG 0x00000508 #define UMC_RDATACTL_D0 0x00000600 #define UMC_WDATACTL_D0 0x00000604 @@ -42,6 +45,7 @@ #define UMC_ODTCTL_D1 0x0000061C #define UMC_RESPCTL 0x00000624 #define UMC_DIRECTBUSCTRLA 0x00000680 +#define UMC_DEBUGC 0x00000718 #define UMC_DCCGCTL 0x00000720 #define UMC_DICGCTLA 0x00000724 #define UMC_DICGCTLB 0x00000728 @@ -70,4 +74,12 @@ #define UMC_MBUS9 0x00002478 #define UMC_MBUS10 0x000024F8 +/* UMC1 register */ +#define UMC_SIORST 0x00000728 +#define UMC_VO0RST 0x0000073c +#define UMC_VPERST 0x00000744 +#define UMC_RGLRST 0x00000750 +#define UMC_A2DRST 0x00000764 +#define UMC_DMDRST 0x00000770 + #endif /* UMC_LD20_REGS_H */ |
