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| author | Edwin Beasant <edwin_beasant@virtensys.com> | 2010-01-27 19:20:29 +0000 |
|---|---|---|
| committer | Patrick Georgi <patrick.georgi@coresystems.de> | 2010-01-27 19:20:29 +0000 |
| commit | 4355beb893d4f7c8e9cac0c1e972e05229d63418 (patch) | |
| tree | a3cb24b00ea2a325097e14251452271e9707b1bb /src/northbridge/amd/lx/grphinit.c | |
| parent | 87d0c542b64c417971e375dc762e80298b8c6dc6 (diff) | |
| download | coreboot-4355beb893d4f7c8e9cac0c1e972e05229d63418.tar.xz | |
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/amd/lx/grphinit.c')
| -rw-r--r-- | src/northbridge/amd/lx/grphinit.c | 43 |
1 files changed, 42 insertions, 1 deletions
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 */ |