diff options
Diffstat (limited to 'src/soc/amd/common')
| -rw-r--r-- | src/soc/amd/common/block/acpimmio/mmio_util.c | 17 | ||||
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/acpimmio.h | 7 | ||||
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/acpimmio_map.h | 19 |
3 files changed, 31 insertions, 12 deletions
diff --git a/src/soc/amd/common/block/acpimmio/mmio_util.c b/src/soc/amd/common/block/acpimmio/mmio_util.c index 04d5e4af4d..a589ef549a 100644 --- a/src/soc/amd/common/block/acpimmio/mmio_util.c +++ b/src/soc/amd/common/block/acpimmio/mmio_util.c @@ -18,13 +18,22 @@ #include <amdblocks/acpimmio_map.h> #include <amdblocks/acpimmio.h> -void enable_acpimmio_decode(void) +void enable_acpimmio_decode_pm24(void) { uint32_t dw; - dw = pm_io_read32(ACPIMMIO_DECODE_REGISTER); - dw |= ACPIMMIO_DECODE_EN; - pm_io_write32(ACPIMMIO_DECODE_REGISTER, dw); + dw = pm_io_read32(ACPIMMIO_DECODE_REGISTER_24); + dw |= PM_24_ACPIMMIO_DECODE_EN; + pm_io_write32(ACPIMMIO_DECODE_REGISTER_24, dw); +} + +void enable_acpimmio_decode_pm04(void) +{ + uint32_t dw; + + dw = pm_io_read32(ACPIMMIO_DECODE_REGISTER_04); + dw |= PM_04_ACPIMMIO_DECODE_EN; + pm_io_write32(ACPIMMIO_DECODE_REGISTER_04, dw); } /* PM registers are accessed a byte at a time via CD6/CD7 */ diff --git a/src/soc/amd/common/block/include/amdblocks/acpimmio.h b/src/soc/amd/common/block/include/amdblocks/acpimmio.h index 57d24db5b2..c441ab8f63 100644 --- a/src/soc/amd/common/block/include/amdblocks/acpimmio.h +++ b/src/soc/amd/common/block/include/amdblocks/acpimmio.h @@ -101,7 +101,12 @@ */ /* Enable the AcpiMmio range at 0xfed80000 */ -void enable_acpimmio_decode(void); + +/* For older discrete FCHs */ +void enable_acpimmio_decode_pm24(void); + +/* For newer integrated FCHs */ +void enable_acpimmio_decode_pm04(void); /* Access PM registers using IO cycles */ uint8_t pm_io_read8(uint8_t reg); diff --git a/src/soc/amd/common/block/include/amdblocks/acpimmio_map.h b/src/soc/amd/common/block/include/amdblocks/acpimmio_map.h index 755af52d4f..9a1584004b 100644 --- a/src/soc/amd/common/block/include/amdblocks/acpimmio_map.h +++ b/src/soc/amd/common/block/include/amdblocks/acpimmio_map.h @@ -22,16 +22,21 @@ #define PM_INDEX 0xcd6 #define PM_DATA 0xcd7 -/* TODO: In the event this is ported backward far enough, earlier devices - * enable the decode in PMx24 instead. All discrete FCHs and the Kabini - * SoC fall into this category. Kabini's successor, Mullins, uses this - * newer method. +/* Earlier devices enable the decode in PMx24 instead. All discrete FCHs and + * the Kabini SoC fall into this category. Kabini's successor, Mullins, uses + * this newer method. */ -#define ACPIMMIO_DECODE_REGISTER 0x4 -#define ACPIMMIO_DECODE_EN BIT(0) + +#define ACPIMMIO_DECODE_REGISTER_24 0x24 +#define PM_24_ACPIMMIO_DECODE_EN BIT(0) + +#define ACPIMMIO_DECODE_REGISTER_04 0x4 +#define PM_04_BIOSRAM_DECODE_EN BIT(0) +#define PM_04_ACPIMMIO_DECODE_EN BIT(1) + /* MMIO register blocks are at fixed offsets from 0xfed80000 and are enabled - * in PMx24[1] (older implementations) and PMx04[1] (newer implementations). + * in PMx24[0] (older implementations) and PMx04[1] (newer implementations). * PM registers are also accessible via IO CD6/CD7. * * All products do not support all blocks below, however AMD has avoided |