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