diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2021-05-18 01:25:51 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-05-19 15:37:39 +0000 |
| commit | 224b578420a5d42e16ec6a8285971d34d8cdafac (patch) | |
| tree | eb7a334ae4d2f9599815aaa886d8c2c3cd396327 /src/soc/amd/cezanne/include | |
| parent | 0e099eaf83c732599b47f2d5301871d6076857a8 (diff) | |
soc/amd/cezanne/fch: add PCIe GPP clock generator configuration settings
I'm not 100% sure if this should rather be duplicated from Picasso or
commonized. Checked with the docs and this won't be compatible with
Stoneyridge and one future product's PPR lacked the corresponding
register. Some other chip has a compatible register layout, but a
different number of PCIe GPP clock outputs, so the common code would
need to use some SoC-dependent defines and possibly a SoC-specific
lookup table for the mapping which is also not that great.
TEST=Checked Cezanne PPR
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I6b6d0cb8d7eb0288d8a18fcb975dc377b2c6846a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54685
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/amd/cezanne/include')
| -rw-r--r-- | src/soc/amd/cezanne/include/soc/southbridge.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/include/soc/southbridge.h b/src/soc/amd/cezanne/include/soc/southbridge.h index 157ad4ec3c..e58a8cd2ca 100644 --- a/src/soc/amd/cezanne/include/soc/southbridge.h +++ b/src/soc/amd/cezanne/include/soc/southbridge.h @@ -63,6 +63,21 @@ #define FCH_LEGACY_UART_DECODE (ALINK_AHB_ADDRESS + 0x20) /* 0xfedc0020 */ +/* FCH MISC Registers 0xfed80e00 */ +#define GPP_CLK_CNTRL 0x00 +#define GPP_CLK0_REQ_SHIFT 0 +#define GPP_CLK1_REQ_SHIFT 2 +#define GPP_CLK4_REQ_SHIFT 4 +#define GPP_CLK2_REQ_SHIFT 6 +#define GPP_CLK3_REQ_SHIFT 8 +#define GPP_CLK5_REQ_SHIFT 10 +#define GPP_CLK6_REQ_SHIFT 12 +#define GPP_CLK_OUTPUT_COUNT 7 +#define GPP_CLK_REQ_MASK(clk_shift) (0x3 << (clk_shift)) +#define GPP_CLK_REQ_ON(clk_shift) (0x3 << (clk_shift)) +#define GPP_CLK_REQ_EXT(clk_shift) (0x1 << (clk_shift)) +#define GPP_CLK_REQ_OFF(clk_shift) (0x0 << (clk_shift)) + #define MISC_I2C0_PAD_CTRL 0xd8 #define MISC_I2C1_PAD_CTRL 0xdc #define MISC_I2C2_PAD_CTRL 0xe0 |