diff options
| -rw-r--r-- | src/soc/amd/stoneyridge/include/soc/southbridge.h | 14 | ||||
| -rw-r--r-- | src/soc/amd/stoneyridge/lpc.c | 7 |
2 files changed, 17 insertions, 4 deletions
diff --git a/src/soc/amd/stoneyridge/include/soc/southbridge.h b/src/soc/amd/stoneyridge/include/soc/southbridge.h index bdcb38fa8d..c0a48b301e 100644 --- a/src/soc/amd/stoneyridge/include/soc/southbridge.h +++ b/src/soc/amd/stoneyridge/include/soc/southbridge.h @@ -107,6 +107,9 @@ #define SPI_PRESERVE_BITS (BIT(0) | BIT(1) | BIT(2) | BIT(3)) #define LPC_PCI_CONTROL 0x40 +#define IMC_PRESENT BIT(7) +#define IMC_TO_HOST_SEMAPHORE BIT(6) +#define HOST_TO_IMC_SEMAPHORE BIT(5) #define LEGACY_DMA_EN BIT(2) #define LPC_IO_PORT_DECODE_ENABLE 0x44 @@ -149,12 +152,17 @@ #define DECODE_IO_PORT_ENABLE6 BIT(23) #define DECODE_IO_PORT_ENABLE5 BIT(22) #define DECODE_IO_PORT_ENABLE4 BIT(21) +#define DECODE_MEM_PORT_ENABLE1 BIT(20) #define DECODE_IO_PORT_ENABLE3 BIT(19) #define DECODE_IO_PORT_ENABLE2 BIT(18) #define DECODE_IO_PORT_ENABLE1 BIT(17) #define DECODE_IO_PORT_ENABLE0 BIT(16) #define LPC_SYNC_TIMEOUT_COUNT_ENABLE BIT(7) +#define LPC_DECODE_RTC_IO_ENABLE BIT(6) +#define DECODE_MEM_PORT_ENABLE0 BIT(5) #define LPC_WIDEIO0_ENABLE BIT(2) +#define DECODE_ALTERNATE_SIO_ENABLE BIT(1) +#define DECODE_SIO_ENABLE BIT(0) /* Assuming word access to higher word (register 0x4a) */ #define LPC_IO_OR_MEM_DEC_EN_HIGH 0x4a #define LPC_WIDEIO2_ENABLE_H BIT(9) @@ -167,6 +175,9 @@ #define DECODE_IO_PORT_ENABLE1_H BIT(1) #define DECODE_IO_PORT_ENABLE0_H BIT(0) +#define LPC_MEM_PORT1 0x4c +#define LPC_MEM_PORT0 0x60 + /* * Register 0x64 is 32-bit, composed by two 16-bit sub-registers. * For ease of access, each sub-register is declared separetely. @@ -200,7 +211,8 @@ #define LPC_ROM_DMA_EC_HOST_CONTROL 0xb8 #define LPC_HOST_CONTROL 0xbb -#define SPI_FROM_HOST_PREFETCH_EN BIT(0) +#define IMC_PAGE_FROM_HOST_EN BIT(0) +#define IMC_PORT_FROM_HOST_EN BIT(3) /* SPI Controller */ #define SPI_CNTRL0 0x00 diff --git a/src/soc/amd/stoneyridge/lpc.c b/src/soc/amd/stoneyridge/lpc.c index 10f4a4b7df..eb512817b6 100644 --- a/src/soc/amd/stoneyridge/lpc.c +++ b/src/soc/amd/stoneyridge/lpc.c @@ -76,11 +76,12 @@ static void lpc_init(device_t dev) pci_write_config8(dev, LPC_MISC_CONTROL_BITS, byte); /* - * bit3: Fix SPI_CS# timing issue when running at 66M. TODO:A12. - * todo: verify against BKDG + * IMC is not used, but some of its registers and ports need to be + * programmed/accessed. So enable CPU access to them. This fixes + * SPI_CS# timing issue when running at 66MHz. */ byte = pci_read_config8(dev, LPC_HOST_CONTROL); - byte |= SPI_FROM_HOST_PREFETCH_EN | 1 << 3; + byte |= IMC_PAGE_FROM_HOST_EN | IMC_PORT_FROM_HOST_EN; pci_write_config8(dev, LPC_HOST_CONTROL, byte); cmos_check_update_date(); |