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| author | Gabor Juhos <juhosg@openwrt.org> | 2007-09-10 09:54:35 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2007-09-10 09:54:35 +0000 |
| commit | ac15780234f559c99eced96d1f9f725986c8fb64 (patch) | |
| tree | 3df2fa62d83828651e1cc9dc15ad30c1ec3dbd29 /target | |
| parent | e83d637f65c15533cdcdbd8ec0c31da6bea48a9b (diff) | |
| download | upstream-ac15780234f559c99eced96d1f9f725986c8fb64.tar.gz upstream-ac15780234f559c99eced96d1f9f725986c8fb64.tar.bz2 upstream-ac15780234f559c99eced96d1f9f725986c8fb64.zip | |
fix memory size detection (#2244)
SVN-Revision: 8728
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/adm5120/files/arch/mips/adm5120/memory.c | 8 | ||||
| -rw-r--r-- | target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_mpmc.h | 10 |
2 files changed, 11 insertions, 7 deletions
diff --git a/target/linux/adm5120/files/arch/mips/adm5120/memory.c b/target/linux/adm5120/files/arch/mips/adm5120/memory.c index 3881e9f6ab..605df26016 100644 --- a/target/linux/adm5120/files/arch/mips/adm5120/memory.c +++ b/target/linux/adm5120/files/arch/mips/adm5120/memory.c @@ -50,10 +50,11 @@ static int __init mem_check_pattern(u8 *addr, unsigned long offs) u32 *p1 = (u32 *)addr; u32 *p2 = (u32 *)(addr+offs); u32 t,u,v; + /* save original value */ t = MEM_READL(p1); - u = MEM_READL(p2); + u = MEM_READL(p2); if (t != u) return 0; @@ -64,10 +65,7 @@ static int __init mem_check_pattern(u8 *addr, unsigned long offs) mem_dbg("write 0x%08X to 0x%08lX\n", v, (unsigned long)p1); MEM_WRITEL(p1, v); - - /* flush write buffers */ - MPMC_WRITE_REG(CTRL, MPMC_READ_REG(CTRL) | MPMC_CTRL_DWB); - + adm5120_ndelay(1000); u = MEM_READL(p2); mem_dbg("pattern at 0x%08lX is 0x%08X\n", (unsigned long)p2, u); diff --git a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_mpmc.h b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_mpmc.h index 786f0f8c7e..406d6c563a 100644 --- a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_mpmc.h +++ b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_mpmc.h @@ -52,8 +52,14 @@ #define MPMC_REG_SC3 0x0260 /* Control register bits */ -#define MPMC_CTRL_AM ( 1 << 1 ) -#define MPMC_CTRL_DWB ( 1 << 3 ) +#define MPMC_CTRL_AM ( 1 << 1 ) /* Address Mirror */ +#define MPMC_CTRL_LPM ( 1 << 2 ) /* Low Power Mode */ +#define MPMC_CTRL_DWB ( 1 << 3 ) /* Drain Write Buffers */ + +/* Status register bits */ +#define MPMC_STATUS_BUSY ( 1 << 0 ) /* Busy */ +#define MPMC_STATUS_WBS ( 1 << 1 ) /* Write Buffer Status */ +#define MPMC_STATUS_SRA ( 1 << 2 ) /* Self-Refresh Acknowledge*/ /* Dynamic Control register bits */ #define MPMC_DC_CE ( 1 << 0 ) |