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| author | Dave Frodin <dave.frodin@se-eng.com> | 2012-11-16 14:16:33 -0700 |
|---|---|---|
| committer | Marc Jones <marcj303@gmail.com> | 2012-11-20 23:59:54 +0100 |
| commit | 73be43a139f15dfa526b0eeefb5539b35cc0902f (patch) | |
| tree | cc2a2d497c9256610d33a80e3b42bb5a96f7518c /src/mainboard/amd | |
| parent | 8ada1526df06cb50a82305e840a5181a3c65575f (diff) | |
| download | coreboot-73be43a139f15dfa526b0eeefb5539b35cc0902f.tar.xz | |
Persimmon: Disable the unused GPP PCIe clocks
Change-Id: I4128af7912bec090bbd48acc1b20d0452e7a4a28
Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/1876
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Zheng Bao <zheng.bao@amd.com>
Reviewed-by: Marc Jones <marcj303@gmail.com>
Diffstat (limited to 'src/mainboard/amd')
| -rw-r--r-- | src/mainboard/amd/persimmon/mainboard.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mainboard/amd/persimmon/mainboard.c b/src/mainboard/amd/persimmon/mainboard.c index 4c52dc3233..5edacd3ab6 100644 --- a/src/mainboard/amd/persimmon/mainboard.c +++ b/src/mainboard/amd/persimmon/mainboard.c @@ -28,6 +28,7 @@ #include "BiosCallOuts.h" #include <cpu/amd/agesa/s3_resume.h> #include <cpu/amd/mtrr.h> +#include "SBPLATFORM.h" void set_pcie_reset(void); void set_pcie_dereset(void); @@ -63,6 +64,15 @@ static void persimmon_enable(device_t dev) #if CONFIG_HAVE_ACPI_RESUME acpi_slp_type = acpi_get_sleep_type(); #endif + + /* enable GPP CLK0 thru CLK1 */ + /* disable GPP CLK2 thru SLT_GFX_CLK */ + u8 *misc_mem_clk_cntrl = (u8 *)(ACPI_MMIO_BASE + MISC_BASE); + *(misc_mem_clk_cntrl + 0) = 0xFF; + *(misc_mem_clk_cntrl + 1) = 0x00; + *(misc_mem_clk_cntrl + 2) = 0x00; + *(misc_mem_clk_cntrl + 3) = 0x00; + *(misc_mem_clk_cntrl + 4) = 0x00; } struct chip_operations mainboard_ops = { |