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author | Stefan Roese <sr@denx.de> | 2014-10-22 10:13:13 (GMT) |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2014-10-23 13:59:21 (GMT) |
commit | 96c5f0816a95c80e993140e34e1b06c016e90f36 (patch) | |
tree | 6d9d49df13dce6e8d4bfda640e552eab3ebda713 /arch/arm/mvebu-common/dram.c | |
parent | 4fd7717e8edfd4235488fd79e33dde48417d9c87 (diff) | |
download | u-boot-96c5f0816a95c80e993140e34e1b06c016e90f36.tar.xz |
arm: kirkwood: Change naming of dram functions from km_foo() to mvebu_foo()
Additionally the SDRAM address decoding register address is not hard coded
in the C code any more. A define is introduced for this base address.
This makes is possible to use those gpio functions from other MVEBU SoC's
as well.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Luka Perkov <luka@openwrt.org>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Diffstat (limited to 'arch/arm/mvebu-common/dram.c')
-rw-r--r-- | arch/arm/mvebu-common/dram.c | 53 |
1 files changed, 27 insertions, 26 deletions
diff --git a/arch/arm/mvebu-common/dram.c b/arch/arm/mvebu-common/dram.c index e468136..db18791 100644 --- a/arch/arm/mvebu-common/dram.c +++ b/arch/arm/mvebu-common/dram.c @@ -14,27 +14,27 @@ DECLARE_GLOBAL_DATA_PTR; -struct kw_sdram_bank { +struct sdram_bank { u32 win_bar; u32 win_sz; }; -struct kw_sdram_addr_dec { - struct kw_sdram_bank sdram_bank[4]; +struct sdram_addr_dec { + struct sdram_bank sdram_bank[4]; }; -#define KW_REG_CPUCS_WIN_ENABLE (1 << 0) -#define KW_REG_CPUCS_WIN_WR_PROTECT (1 << 1) -#define KW_REG_CPUCS_WIN_WIN0_CS(x) (((x) & 0x3) << 2) -#define KW_REG_CPUCS_WIN_SIZE(x) (((x) & 0xff) << 24) +#define REG_CPUCS_WIN_ENABLE (1 << 0) +#define REG_CPUCS_WIN_WR_PROTECT (1 << 1) +#define REG_CPUCS_WIN_WIN0_CS(x) (((x) & 0x3) << 2) +#define REG_CPUCS_WIN_SIZE(x) (((x) & 0xff) << 24) /* - * kw_sdram_bar - reads SDRAM Base Address Register + * mvebu_sdram_bar - reads SDRAM Base Address Register */ -u32 kw_sdram_bar(enum memory_bank bank) +u32 mvebu_sdram_bar(enum memory_bank bank) { - struct kw_sdram_addr_dec *base = - (struct kw_sdram_addr_dec *)KW_REGISTER(0x1500); + struct sdram_addr_dec *base = + (struct sdram_addr_dec *)MVEBU_SDRAM_BASE; u32 result = 0; u32 enable = 0x01 & readl(&base->sdram_bank[bank].win_sz); @@ -46,31 +46,31 @@ u32 kw_sdram_bar(enum memory_bank bank) } /* - * kw_sdram_bs_set - writes SDRAM Bank size + * mvebu_sdram_bs_set - writes SDRAM Bank size */ -static void kw_sdram_bs_set(enum memory_bank bank, u32 size) +static void mvebu_sdram_bs_set(enum memory_bank bank, u32 size) { - struct kw_sdram_addr_dec *base = - (struct kw_sdram_addr_dec *)KW_REGISTER(0x1500); + struct sdram_addr_dec *base = + (struct sdram_addr_dec *)MVEBU_SDRAM_BASE; /* Read current register value */ u32 reg = readl(&base->sdram_bank[bank].win_sz); /* Clear window size */ - reg &= ~KW_REG_CPUCS_WIN_SIZE(0xFF); + reg &= ~REG_CPUCS_WIN_SIZE(0xFF); /* Set new window size */ - reg |= KW_REG_CPUCS_WIN_SIZE((size - 1) >> 24); + reg |= REG_CPUCS_WIN_SIZE((size - 1) >> 24); writel(reg, &base->sdram_bank[bank].win_sz); } /* - * kw_sdram_bs - reads SDRAM Bank size + * mvebu_sdram_bs - reads SDRAM Bank size */ -u32 kw_sdram_bs(enum memory_bank bank) +u32 mvebu_sdram_bs(enum memory_bank bank) { - struct kw_sdram_addr_dec *base = - (struct kw_sdram_addr_dec *)KW_REGISTER(0x1500); + struct sdram_addr_dec *base = + (struct sdram_addr_dec *)MVEBU_SDRAM_BASE; u32 result = 0; u32 enable = 0x01 & readl(&base->sdram_bank[bank].win_sz); @@ -81,15 +81,16 @@ u32 kw_sdram_bs(enum memory_bank bank) return result; } -void kw_sdram_size_adjust(enum memory_bank bank) +void mvebu_sdram_size_adjust(enum memory_bank bank) { u32 size; /* probe currently equipped RAM size */ - size = get_ram_size((void *)kw_sdram_bar(bank), kw_sdram_bs(bank)); + size = get_ram_size((void *)mvebu_sdram_bar(bank), + mvebu_sdram_bs(bank)); /* adjust SDRAM window size accordingly */ - kw_sdram_bs_set(bank, size); + mvebu_sdram_bs_set(bank, size); } #ifndef CONFIG_SYS_BOARD_DRAM_INIT @@ -99,8 +100,8 @@ int dram_init(void) 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); + gd->bd->bi_dram[i].start = mvebu_sdram_bar(i); + gd->bd->bi_dram[i].size = mvebu_sdram_bs(i); /* * It is assumed that all memory banks are consecutive * and without gaps. |