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AMD Northbridge LX: simplify get_top_of_ram() 

Get rid of not needed dependency to gliu0table. This change is
needed to move get_top_of_ram() to raminit.c - as needed for
EARLY_CBMEM_INIT.

Boot tested on a Bachmann OT200.

Change-Id: I0bfe40c366a3537775d5c1ff8e0b1f5ac94320b7
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-on: http://review.coreboot.org/3380
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
This commit is contained in:
Christian Gmeiner 2013-06-06 14:37:49 +02:00 committed by Marc Jones
parent b82a74c7ff
commit bd7e8d8d2b
1 changed files with 4 additions and 16 deletions
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20
src/northbridge/amd/lx/northbridgeinit.c
View File

@ -716,25 +716,13 @@ static void setup_lx_cache(void)
unsigned long get_top_of_ram(void) unsigned long get_top_of_ram(void)
{ {
struct gliutable *gl = 0;
uint32_t systop; uint32_t systop;
msr_t msr; msr_t msr;
int i;
for (i = 0; gliu0table[i].desc_name != GL_END; i++) { msr = rdmsr(MSR_GLIU0_SYSMEM);
if (gliu0table[i].desc_type == R_SYSMEM) { systop = ((msr.hi & 0xFF) << 24) | ((msr.lo & 0xFFF00000) >> 8);
gl = &gliu0table[i]; systop += 0x1000; /* 4K */
break;
}
}
if (gl) {
msr = rdmsr(gl->desc_name);
systop = ((msr.hi & 0xFF) << 24) | ((msr.lo & 0xFFF00000) >> 8);
systop += 0x1000; /* 4K */
} else {
systop =
((sizeram() - CONFIG_VIDEO_MB) * 1024) - SMM_SIZE - 1024;
}
return systop; return systop;
} }