diff options
Diffstat (limited to 'src/soc/amd/common/block/lpc')
| -rw-r--r-- | src/soc/amd/common/block/lpc/lpc_util.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/soc/amd/common/block/lpc/lpc_util.c b/src/soc/amd/common/block/lpc/lpc_util.c index 97ef17c612..c9786e7aa2 100644 --- a/src/soc/amd/common/block/lpc/lpc_util.c +++ b/src/soc/amd/common/block/lpc/lpc_util.c @@ -322,19 +322,29 @@ uintptr_t lpc_get_spibase(void) return (uintptr_t)base; } -void lpc_set_spibase(u32 base, u32 enable) +void lpc_set_spibase(uint32_t base) { - u32 reg32; + uint32_t reg32; + + reg32 = pci_read_config32(_LPCB_DEV, SPIROM_BASE_ADDRESS_REGISTER); + + reg32 &= SPI_BASE_ALIGNMENT - 1; /* preserve only reserved, enables */ + reg32 |= ALIGN_DOWN(base, SPI_BASE_ALIGNMENT); + + pci_write_config32(_LPCB_DEV, SPIROM_BASE_ADDRESS_REGISTER, reg32); +} + +void lpc_enable_spi_rom(uint32_t enable) +{ + uint32_t reg32; /* only two types of CS# enables are allowed */ enable &= SPI_ROM_ENABLE | SPI_ROM_ALT_ENABLE; reg32 = pci_read_config32(_LPCB_DEV, SPIROM_BASE_ADDRESS_REGISTER); - reg32 &= SPI_BASE_ALIGNMENT - 1; /* preserve only reserved, enables */ reg32 &= ~(SPI_ROM_ENABLE | SPI_ROM_ALT_ENABLE); reg32 |= enable; - reg32 |= ALIGN_DOWN(base, SPI_BASE_ALIGNMENT); pci_write_config32(_LPCB_DEV, SPIROM_BASE_ADDRESS_REGISTER, reg32); } |