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| author | Bruce Griffith <Bruce.Griffith@se-eng.com> | 2014-08-31 22:40:57 -0600 |
|---|---|---|
| committer | Bruce Griffith <Bruce.Griffith@se-eng.com> | 2014-09-04 12:28:29 +0200 |
| commit | 230fe0ef2f2e565a1b67ffea946d77c3c24ac0d4 (patch) | |
| tree | 8766b427c1b27b7de1f4011cbdfe01804f78e7d2 /src/cpu | |
| parent | d13e2c4ab769e526e6b2c0ae568bd84b34688c58 (diff) | |
AMD Steppe Eagle: Disable "No Snoop Enable" to stop HDMI audio stutter
Ubuntu's HDMI audio has noise and echo. Disable NoSnoopEnable can
resolve this issue. The posted amd_late_init.c northbridge code
is missing a test for Steppe Eagle northbridges. See coreboot Gerrit
change 3934, commit ID 4ca721399c (AMD Olive Hill: Disable
NoSnoopEnable to fix HDMI audio corruptions with Ubuntu).
Change-Id: I89894d0ce4ad72ea16d61b445edb9e67920bca24
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/6822
Tested-by: build bot (Jenkins)
Reviewed-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/amd/agesa/amd_late_init.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/cpu/amd/agesa/amd_late_init.c b/src/cpu/amd/agesa/amd_late_init.c index faba328eea..c7927dc7c1 100644 --- a/src/cpu/amd/agesa/amd_late_init.c +++ b/src/cpu/amd/agesa/amd_late_init.c @@ -20,8 +20,11 @@ #include <arch/acpi.h> #include <bootstate.h> #include <console/console.h> +#include <device/device.h> +#include <device/pci_def.h> +#include <device/pci_ops.h> -#include "agesawrapper.h" +#include <agesawrapper.h> #include <northbridge/amd/agesa/agesawrapper_call.h> #if IS_ENABLED(CONFIG_HUDSON_IMC_FWM) @@ -31,6 +34,9 @@ #include <sb_cimx.h> #endif +#define NORTHBRIDGE_00700F00 IS_ENABLED(CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY_16KB) +#define NORTHBRIDGE_00730F01 IS_ENABLED(CONFIG_NORTHBRIDGE_AMD_AGESA_00730F01) + static void agesawrapper_post_device(void *unused) { if (acpi_is_wakeup_s3()) @@ -38,7 +44,7 @@ static void agesawrapper_post_device(void *unused) AGESAWRAPPER(amdinitlate); -#if IS_ENABLED(CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY_16KB) +#if (NORTHBRIDGE_00700F00) || (NORTHBRIDGE_00730F01) device_t dev; u32 value; dev = dev_find_slot(0, PCI_DEVFN(0, 0)); /* clear IoapicSbFeatureEn */ |