diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/kirkwood')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/kirkwood/cpu.c | 34 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/kirkwood/dram.c | 38 |
2 files changed, 61 insertions, 11 deletions
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/cpu.c b/arch/arm/cpu/arm926ejs/kirkwood/cpu.c index 82c978bd93..b4a4c0428f 100644 --- a/arch/arm/cpu/arm926ejs/kirkwood/cpu.c +++ b/arch/arm/cpu/arm926ejs/kirkwood/cpu.c @@ -54,10 +54,11 @@ unsigned char get_random_hex(void) u8 outbuf[BUFLEN]; /* - * in case of 88F6281/88F6192 A0, + * in case of 88F6281/88F6282/88F6192 A0, * Bit7 need to reset to generate random values in KW_REG_UNDOC_0x1470 - * Soc reg offsets KW_REG_UNDOC_0x1470 and KW_REG_UNDOC_0x1478 are reserved regs and - * Does not have names at this moment (no errata available) + * Soc reg offsets KW_REG_UNDOC_0x1470 and KW_REG_UNDOC_0x1478 are + * reserved regs and does not have names at this moment + * (no errata available) */ writel(readl(KW_REG_UNDOC_0x1478) & ~(1 << 7), KW_REG_UNDOC_0x1478); for (i = 0; i < BUFLEN; i++) { @@ -271,20 +272,31 @@ static void kw_sysrst_check(void) #if defined(CONFIG_DISPLAY_CPUINFO) int print_cpuinfo(void) { - char *name = "Unknown"; + char *rev; + u16 devid = (readl(KW_REG_PCIE_DEVID) >> 16) & 0xffff; + u8 revid = readl(KW_REG_PCIE_REVID) & 0xff; - switch (readl(KW_REG_DEVICE_ID) & 0x03) { - case 1: - name = "88F6192_A0"; + if ((readl(KW_REG_DEVICE_ID) & 0x03) > 2) { + printf("Error.. %s:Unsupported Kirkwood SoC 88F%04x\n", __FUNCTION__, devid); + return -1; + } + + switch (revid) { + case 0: + rev = "Z0"; break; case 2: - name = "88F6281_A0"; + rev = "A0"; + break; + case 3: + rev = "A1"; break; default: - printf("SoC: Unsupported Kirkwood\n"); - return -1; + rev = "??"; + break; } - printf("SoC: Kirkwood %s\n", name); + + printf("SoC: Kirkwood 88F%04x_%s\n", devid, rev); return 0; } #endif /* CONFIG_DISPLAY_CPUINFO */ diff --git a/arch/arm/cpu/arm926ejs/kirkwood/dram.c b/arch/arm/cpu/arm926ejs/kirkwood/dram.c index 8f2a18af6b..7439c87f68 100644 --- a/arch/arm/cpu/arm926ejs/kirkwood/dram.c +++ b/arch/arm/cpu/arm926ejs/kirkwood/dram.c @@ -23,8 +23,11 @@ */ #include <config.h> +#include <common.h> #include <asm/arch/kirkwood.h> +DECLARE_GLOBAL_DATA_PTR; + #define KW_REG_CPUCS_WIN_BAR(x) (KW_REGISTER(0x1500) + (x * 0x08)) #define KW_REG_CPUCS_WIN_SZ(x) (KW_REGISTER(0x1504) + (x * 0x08)) /* @@ -56,3 +59,38 @@ u32 kw_sdram_bs(enum memory_bank bank) result += 0x01000000; return result; } + +#ifndef CONFIG_SYS_BOARD_DRAM_INIT +int dram_init(void) +{ + int i; + + gd->ram_size = 0; + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + gd->bd->bi_dram[i].start = kw_sdram_bar(i); + gd->bd->bi_dram[i].size = kw_sdram_bs(i); + /* + * It is assumed that all memory banks are consecutive + * and without gaps. + * If the gap is found, ram_size will be reported for + * consecutive memory only + */ + if (gd->bd->bi_dram[i].start != gd->ram_size) + break; + + gd->ram_size += gd->bd->bi_dram[i].size; + + } + return 0; +} + +/* + * If this function is not defined here, + * board.c alters dram bank zero configuration defined above. + */ +void dram_init_banksize(void) +{ + dram_init(); +} +#endif /* CONFIG_SYS_BOARD_DRAM_INIT */ + |