soc/amd/stoneyridge: Add IO access functions for PMx

Replace locations in the source that explicitely use the CD6/CD7
index/data pair with utility function calls.

Change-Id: I6e7ba472ef2551e363987d18a79408fcd2074de4
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32648
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/soc/amd/stoneyridge/include/soc/southbridge.h b/src/soc/amd/stoneyridge/include/soc/southbridge.h
index f755c0a0d4..618a5deff7 100644
--- a/src/soc/amd/stoneyridge/include/soc/southbridge.h
+++ b/src/soc/amd/stoneyridge/include/soc/southbridge.h
@@ -491,6 +491,12 @@ void sb_tpm_decode(void);
 void sb_tpm_decode_spi(void);
 void lpc_wideio_512_window(uint16_t base);
 void lpc_wideio_16_window(uint16_t base);
+uint8_t pm_io_read8(uint8_t reg);
+uint16_t pm_io_read16(uint8_t reg);
+uint32_t pm_io_read32(uint8_t reg);
+void pm_io_write8(uint8_t reg, uint8_t value);
+void pm_io_write16(uint8_t reg, uint16_t value);
+void pm_io_write32(uint8_t reg, uint32_t value);
 u8 pm_read8(u8 reg);
 u16 pm_read16(u8 reg);
 u32 pm_read32(u8 reg);