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From 4dede601a2017d8a9696f8f2013a9b2b97d5169e Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineeringinc.com>
Date: Thu, 3 Sep 2015 17:43:52 -0500
Subject: [PATCH 132/139] cpu/amd/family_10h-family_15h: Apply missing Family
15h errata fixes
Change-Id: I132874fe5b5a8b9a87422e2f07bff03bc5863ca4
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
---
src/cpu/amd/family_10h-family_15h/defaults.h | 12 ++++++++++++
src/northbridge/amd/amdfam10/misc_control.c | 6 ++++++
2 files changed, 18 insertions(+)
diff --git a/src/cpu/amd/family_10h-family_15h/defaults.h b/src/cpu/amd/family_10h-family_15h/defaults.h
index af59120..7a84fcb 100644
--- a/src/cpu/amd/family_10h-family_15h/defaults.h
+++ b/src/cpu/amd/family_10h-family_15h/defaults.h
@@ -166,6 +166,14 @@ static const struct {
0x0000000C, 0x00000000,
0x0000000C, 0x00000000}, /* Cx and Dx multiple-link processor */
+ { OSVW_ID_Length, AMD_FAM15_ALL, AMD_PTYPE_ALL,
+ 0x00000005, 0x00000000,
+ 0x00000005, 0x00000000}, /* OSVW_ID_Length = 0x5 */
+
+ { OSVW_Status, AMD_FAM15_ALL, AMD_PTYPE_ALL,
+ 0x00000010, 0x00000000,
+ 0x00000010, 0x00000000}, /* OsvwId4 = 0x1 */
+
{ BU_CFG2, AMD_DR_Dx, AMD_PTYPE_ALL,
0x00000000, 1 << (50-32),
0x00000000, 1 << (50-32)}, /* D0 or Above, RdMmExtCfgQwEn*/
@@ -638,6 +646,10 @@ static const struct {
{ 3, 0x1b8, (AMD_FAM10_ALL | AMD_FAM15_ALL), AMD_PTYPE_ALL,
0x00001000, 0x00001000 }, /* [12] = L3PrivReplEn */
+ /* Errata 504 workaround */
+ { 3, 0x1b8, AMD_FAM15_ALL, AMD_PTYPE_ALL,
+ 0x00040000, 0x00040000 }, /* [18] = 1b */
+
/* IBS Control Register */
{ 3, 0x1cc, (AMD_FAM10_ALL | AMD_FAM15_ALL), AMD_PTYPE_ALL,
0x00000100, 0x00000100 }, /* [8] = LvtOffsetVal */
diff --git a/src/northbridge/amd/amdfam10/misc_control.c b/src/northbridge/amd/amdfam10/misc_control.c
index 4b62c69..a3d6b19 100644
--- a/src/northbridge/amd/amdfam10/misc_control.c
+++ b/src/northbridge/amd/amdfam10/misc_control.c
@@ -79,6 +79,7 @@ static void mcf3_read_resources(device_t dev)
static void set_agp_aperture(device_t dev, uint32_t pci_id)
{
+ uint32_t dword;
struct resource *resource;
resource = probe_resource(dev, 0x94);
@@ -109,6 +110,11 @@ static void set_agp_aperture(device_t dev, uint32_t pci_id)
/* Report the resource has been stored... */
report_resource_stored(pdev, resource, " <gart>");
+
+ /* Errata 540 workaround */
+ dword = pci_read_config32(pdev, 0x90);
+ dword |= 0x1 << 6; /* DisGartTblWlkPrb = 0x1 */
+ pci_write_config32(pdev, 0x90, dword);
}
}
}
--
1.9.1
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