From cf37c5d98bb2e23fbcbca8a0328ca7dd43d6af8c Mon Sep 17 00:00:00 2001 From: Holger Brunck Date: Fri, 20 Jul 2012 02:34:24 +0000 Subject: kirkwood: use c-struct for access to SDRAM addr decode registers Remove the defines and do this with a C-struct. Signed-off-by: Holger Brunck cc: Prafulla Wadaskar cc: Valentin Longchamp cc: Gerlando Falauto cc: Marek Vasut Acked-By: Prafulla Wadaskar --- arch/arm/cpu/arm926ejs/kirkwood/dram.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/arm/cpu/arm926ejs/kirkwood/dram.c b/arch/arm/cpu/arm926ejs/kirkwood/dram.c index 181b3e7..1c5faab 100644 --- a/arch/arm/cpu/arm926ejs/kirkwood/dram.c +++ b/arch/arm/cpu/arm926ejs/kirkwood/dram.c @@ -30,20 +30,29 @@ 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)) +struct kw_sdram_bank { + u32 win_bar; + u32 win_sz; +}; + +struct kw_sdram_addr_dec { + struct kw_sdram_bank sdram_bank[4]; +}; + /* * kw_sdram_bar - reads SDRAM Base Address Register */ u32 kw_sdram_bar(enum memory_bank bank) { + struct kw_sdram_addr_dec *base = + (struct kw_sdram_addr_dec *)KW_REGISTER(0x1500); u32 result = 0; - u32 enable = 0x01 & readl(KW_REG_CPUCS_WIN_SZ(bank)); + u32 enable = 0x01 & readl(&base->sdram_bank[bank].win_sz); if ((!enable) || (bank > BANK3)) return 0; - result = readl(KW_REG_CPUCS_WIN_BAR(bank)); + result = readl(&base->sdram_bank[bank].win_bar); return result; } @@ -52,12 +61,14 @@ u32 kw_sdram_bar(enum memory_bank bank) */ u32 kw_sdram_bs(enum memory_bank bank) { + struct kw_sdram_addr_dec *base = + (struct kw_sdram_addr_dec *)KW_REGISTER(0x1500); u32 result = 0; - u32 enable = 0x01 & readl(KW_REG_CPUCS_WIN_SZ(bank)); + u32 enable = 0x01 & readl(&base->sdram_bank[bank].win_sz); if ((!enable) || (bank > BANK3)) return 0; - result = 0xff000000 & readl(KW_REG_CPUCS_WIN_SZ(bank)); + result = 0xff000000 & readl(&base->sdram_bank[bank].win_sz); result += 0x01000000; return result; } -- cgit v1.1