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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 | 2543435367f521a76984110862bc5afc8520c4e3 (patch) | |
| tree | 23ad0d78b7c68bb61c9f57dba1ff49a2f032b0d2 /target/linux/adm5120 | |
| parent | f22594c4341e12f720c551ad7a9198cd4e3ad885 (diff) | |
| download | master-187ad058-2543435367f521a76984110862bc5afc8520c4e3.tar.gz master-187ad058-2543435367f521a76984110862bc5afc8520c4e3.tar.bz2 master-187ad058-2543435367f521a76984110862bc5afc8520c4e3.zip | |
[adm5120] fix memory size detection (#2244)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8728 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/adm5120')
| -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 ) |