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authorNils Jacobs <njacobs8@hetnet.nl>2010-07-26 23:46:25 +0000
committerJoseph Smith <joe@smittys.pointclark.net>2010-07-26 23:46:25 +0000
commite474070bdd3410fef471a7a142453a883a9f7793 (patch)
tree578d9a74c2bcddee89bd7db21ea9fb5bcff00a4e /src/northbridge/amd/gx2
parente3fb1c2531573ca246221167156721e40c3ef47c (diff)
This patch converts the Geode GX2 boards to CAR.
Signed-off-by: Nils Jacobs <njacobs8@hetnet.nl> Acked-by: Joseph Smith <joe@settoplinux.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5669 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge/amd/gx2')
-rw-r--r--src/northbridge/amd/gx2/pll_reset.c2
-rw-r--r--src/northbridge/amd/gx2/raminit.c11
-rw-r--r--src/northbridge/amd/gx2/raminit.h2
3 files changed, 8 insertions, 7 deletions
diff --git a/src/northbridge/amd/gx2/pll_reset.c b/src/northbridge/amd/gx2/pll_reset.c
index c1b22a28a0..a434307035 100644
--- a/src/northbridge/amd/gx2/pll_reset.c
+++ b/src/northbridge/amd/gx2/pll_reset.c
@@ -4,6 +4,7 @@
#define CALIBRATE_INTERVAL ((20*CLOCK_TICK_RATE)/1000) /* 20ms */
#define CALIBRATE_DIVISOR (20*1000) /* 20ms / 20000 == 1usec */
+#if 0
static unsigned int calibrate_tsc(void)
{
/* Set the Gate high, disable speaker */
@@ -64,6 +65,7 @@ bad_ctc:
print_err("bad_ctc\n");
return 0;
}
+#endif
/* spll_raw_clk = SYSREF * FbDIV,
* GLIU Clock = spll_raw_clk / MDIV
diff --git a/src/northbridge/amd/gx2/raminit.c b/src/northbridge/amd/gx2/raminit.c
index 3f99cab8ee..c8f248d55c 100644
--- a/src/northbridge/amd/gx2/raminit.c
+++ b/src/northbridge/amd/gx2/raminit.c
@@ -102,17 +102,14 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
msr.lo = 0x8ea0ad6a;
wrmsr(0x4c00000f, msr);
- /* Fixes from Jordan Crouse of AMD. */
-
- /* make sure there is nothing stale in the cache */
- __asm__("wbinvd\n");
-
- print_debug("RAM DLL lock\n");
/* The RAM dll needs a write to lock on so generate a few dummy writes */
+ /* Note: The descriptor needs to be enabled to point at memory */
volatile unsigned long *ptr;
- for (i=0;i<5;i++) {
+ for (i = 0; i < 5; i++) {
ptr = (void *)i;
*ptr = (unsigned long)i;
}
+ print_info("RAM DLL lock\n");
+
}
diff --git a/src/northbridge/amd/gx2/raminit.h b/src/northbridge/amd/gx2/raminit.h
index f13f53a09f..a49bf20886 100644
--- a/src/northbridge/amd/gx2/raminit.h
+++ b/src/northbridge/amd/gx2/raminit.h
@@ -7,4 +7,6 @@ struct mem_controller {
uint16_t channel0[DIMM_SOCKETS];
};
+void sdram_initialize(int controllers, const struct mem_controller *ctrl);
+
#endif /* RAMINIT_H */