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authorEdwin Beasant <edwin_beasant@virtensys.com>2010-01-27 19:20:29 +0000
committerPatrick Georgi <patrick.georgi@coresystems.de>2010-01-27 19:20:29 +0000
commit4355beb893d4f7c8e9cac0c1e972e05229d63418 (patch)
treea3cb24b00ea2a325097e14251452271e9707b1bb /src/northbridge
parent87d0c542b64c417971e375dc762e80298b8c6dc6 (diff)
Add the MSR writes that are needed to provide VGA legacy routing for the Geode LX
Add appropriate Kconfig defines to provide 8mb of VGA ram allocation Add the Kconfig defines to cover TSC calibration from TIMER2 and UDELAY setup Two small warning removals about excessive prototyping. Signed-off-by: Edwin Beasant <edwin_beasant@virtensys.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5059 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/amd/lx/Kconfig6
-rw-r--r--src/northbridge/amd/lx/grphinit.c43
-rw-r--r--src/northbridge/amd/lx/northbridgeinit.c3
3 files changed, 47 insertions, 5 deletions
diff --git a/src/northbridge/amd/lx/Kconfig b/src/northbridge/amd/lx/Kconfig
index 002cc8a7aa..75a93a148d 100644
--- a/src/northbridge/amd/lx/Kconfig
+++ b/src/northbridge/amd/lx/Kconfig
@@ -1,4 +1,8 @@
config NORTHBRIDGE_AMD_LX
bool
select HAVE_HIGH_TABLES
-
+
+config VIDEO_MB
+ int
+ default 8
+ depends on NORTHBRIDGE_AMD_LX
diff --git a/src/northbridge/amd/lx/grphinit.c b/src/northbridge/amd/lx/grphinit.c
index e505f77580..1312d78f84 100644
--- a/src/northbridge/amd/lx/grphinit.c
+++ b/src/northbridge/amd/lx/grphinit.c
@@ -22,6 +22,45 @@
#include <stdint.h>
#include <cpu/amd/vr.h>
#include <console/console.h>
+#include <cpu/amd/lxdef.h>
+#include <cpu/x86/msr.h>
+#include <stdlib.h>
+
+void geodelx_vga_msr_init(void);
+void graphics_init(void);
+
+struct msrinit {
+ u32 msrnum;
+ msr_t msr;
+};
+
+static const struct msrinit geodelx_vga_msr[] = {
+ /* Enable the GLIU Memory routing to the hardware
+ * PDID1 : Port 4, GLIU0
+ * PBASE : 0x000A0
+ * PMASK : 0xFFFE0
+ */
+ {.msrnum = MSR_GLIU0_BASE4, {.lo = 0x0a0fffe0, .hi = 0x80000000}},
+ /* Enable the GLIU IO Routing
+ * IDID : Port 4, GLIU0
+ * IBASE : 0x003c0
+ * IMASK : 0xffff0
+ */
+ {.msrnum = GLIU0_IOD_BM_0, {.lo = 0x3c0ffff0, .hi = 0x80000000}},
+ /* Enable the GLIU IO Routing
+ * IDID : Port 4, GLIU0
+ * IBASE : 0x003d0
+ * IMASK : 0xffff0
+ */
+ {.msrnum = GLIU0_IOD_BM_1, {.lo = 0x3d0ffff0, .hi = 0x80000000}},
+};
+
+void geodelx_vga_msr_init(void)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(geodelx_vga_msr); i++)
+ wrmsr(geodelx_vga_msr[i].msrnum, geodelx_vga_msr[i].msr);
+}
/*
* This function mirrors the Graphics_Init routine in GeodeROM.
@@ -32,7 +71,9 @@ void graphics_init(void)
/* SoftVG initialization */
printk_debug("Graphics init...\n");
-
+
+ geodelx_vga_msr_init();
+
/* Call SoftVG with the main configuration parameters. */
/* NOTE: SoftVG expects the memory size to be given in 2MB blocks */
diff --git a/src/northbridge/amd/lx/northbridgeinit.c b/src/northbridge/amd/lx/northbridgeinit.c
index 4f00a80891..8c7a7a8af6 100644
--- a/src/northbridge/amd/lx/northbridgeinit.c
+++ b/src/northbridge/amd/lx/northbridgeinit.c
@@ -99,7 +99,6 @@ struct msrinit GeodeLinkPriorityTable[] = {
{0x0FFFFFFFF, {0x0FFFFFFFF, 0x0FFFFFFFF}}, /* END */
};
-extern int sizeram(void);
static void writeglmsr(struct gliutable *gl)
{
@@ -122,7 +121,6 @@ static void ShadowInit(struct gliutable *gl)
}
}
-extern int sizeram(void);
static void SysmemInit(struct gliutable *gl)
{
msr_t msr;
@@ -749,7 +747,6 @@ uint32_t get_systop(void)
/* ***************************************************************************/
void northbridge_init_early(void)
{
- msr_t msr;
int i;
printk_debug("Enter %s\n", __func__);