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authorLi-Ta Lo <ollie@lanl.gov>2006-02-28 15:39:25 +0000
committerLi-Ta Lo <ollie@lanl.gov>2006-02-28 15:39:25 +0000
commitbab9446dfd715255d7c8dbefa11a214ffc354cab (patch)
tree224e9ec0007e7d3ca2e677742629642acca1c6fb /src
parenta51e6f1e560a1dc40ec0c9522733d5f8422f041f (diff)
downloadcoreboot-bab9446dfd715255d7c8dbefa11a214ffc354cab.tar.xz
semi working with random 1 bit error
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2186 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/amd/rumba/auto.c34
-rw-r--r--src/northbridge/amd/gx2/raminit.c24
2 files changed, 44 insertions, 14 deletions
diff --git a/src/mainboard/amd/rumba/auto.c b/src/mainboard/amd/rumba/auto.c
index b15937126b..08fe8ed6ca 100644
--- a/src/mainboard/amd/rumba/auto.c
+++ b/src/mainboard/amd/rumba/auto.c
@@ -60,8 +60,36 @@ static void msr_init(void)
}
-static pll_reset(void)
+static void pll_reset(void)
{
+ msr_t msr;
+
+ msr = rdmsr(0x4c000014);
+ print_debug("CGLP_SYS_RSTPLL ");
+ print_debug_hex32(msr.hi);
+ print_debug(":");
+ print_debug_hex32(msr.lo);
+ print_debug("\n\r");
+
+ if ((msr.lo >> 26) & 0x3F) {
+ print_debug("reboot from BIOS reset\n\r");
+ return;
+ }
+ print_debug("prgramming PLL\n\r");
+
+ msr.hi = 0x00000019;
+ msr.lo = 0x06de0378;
+ wrmsr(0x4c000014, msr);
+ msr.lo |= ((0xde << 16) | (1 << 26));
+ wrmsr(0x4c000014, msr);
+
+ print_debug("Reset PLL\n\r");
+
+ msr.lo |= ((1<<14) |(1<<13) | (1<<0));
+ wrmsr(0x4c000014,msr);
+
+ print_debug("should not be here\n\r");
+
}
static void main(unsigned long bist)
@@ -76,7 +104,9 @@ static void main(unsigned long bist)
uart_init();
console_init();
- print_err("hi\n");
+ print_err("hi\n\r");
+
+ pll_reset();
/* Halt if there was a built in self test failure */
//report_bist_failure(bist);
diff --git a/src/northbridge/amd/gx2/raminit.c b/src/northbridge/amd/gx2/raminit.c
index 1b2ad6a6b9..2ad46b6170 100644
--- a/src/northbridge/amd/gx2/raminit.c
+++ b/src/northbridge/amd/gx2/raminit.c
@@ -48,15 +48,6 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
wrmsr(0x2000201d, msr);
print_debug("sdram_enable step 3\r\n");
- /* 4. set and clear REF_TST 16 times, more shouldn't hurt */
- for (i = 0; i < 19; i++) {
- msr = rdmsr(0x20000018);
- msr.lo |= (0x01 << 3);
- wrmsr(0x20000018, msr);
- msr.lo &= !(0x01 << 3);
- wrmsr(0x20000018, msr);
- }
- print_debug("sdram_enable step 4\r\n");
/* 5. set refresh interval */
msr = rdmsr(0x20000018);
@@ -68,7 +59,6 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
msr.lo &= !(0x03 << 6);
wrmsr(0x20000018, msr);
-
/* 6. enable RLL, load Extended Mode Register by set and clear PROG_DRAM */
msr = rdmsr(0x20000018);
msr.lo |= ((0x01 << 28) | 0x01);
@@ -96,14 +86,24 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
wrmsr(0x20000018, msr);
print_debug("sdram_enable step 10\r\n");
+ /* 4. set and clear REF_TST 16 times, more shouldn't hurt */
+ for (i = 0; i < 19; i++) {
+ msr = rdmsr(0x20000018);
+ msr.lo |= (0x01 << 3);
+ wrmsr(0x20000018, msr);
+ msr.lo &= !(0x01 << 3);
+ wrmsr(0x20000018, msr);
+ }
+ print_debug("sdram_enable step 4\r\n");
+
/* wait 200 SDCLKs */
for (i = 0; i < 200; i++)
outb(0xaa, 0x80);
/* load RDSYNC */
- msr = rdmsr(0x2000001a);
+ msr = rdmsr(0x2000001f);
msr.hi = 0x000ff310;
- wrmsr(0x20000018, msr);
+ wrmsr(0x2000001f, msr);
print_debug("sdram_enable step 10\r\n");
/* DRAM working now?? */