diff options
Diffstat (limited to 'src/southbridge/amd/cimx/sb800/early.c')
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/early.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/southbridge/amd/cimx/sb800/early.c b/src/southbridge/amd/cimx/sb800/early.c index 40a18ccd4c..9d49a52d54 100644 --- a/src/southbridge/amd/cimx/sb800/early.c +++ b/src/southbridge/amd/cimx/sb800/early.c @@ -24,10 +24,11 @@ #include <arch/io.h> /* inl, outl */ #include <arch/romcc_io.h> /* device_t */ #include "SBPLATFORM.h" -#include "SbEarly.h" +#include "sb_cimx.h" #include "cfg.h" /*sb800_cimx_config*/ +#if CONFIG_RAMINIT_SYSINFO == 1 /** * @brief Get SouthBridge device number * @param[in] bus target bus number @@ -37,20 +38,23 @@ u32 get_sbdn(u32 bus) { device_t dev; + printk(BIOS_DEBUG, "SB800 - %s - %s - Start.\n", __FILE__, __func__); //dev = PCI_DEV(bus, 0x14, 0); dev = pci_locate_device_on_bus( PCI_ID(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SB800_SM), bus); + printk(BIOS_DEBUG, "SB800 - %s - %s - End.\n", __FILE__, __func__); return (dev >> 15) & 0x1f; } +#endif /** * @brief South Bridge CIMx romstage entry, * wrapper of sbPowerOnInit entry point. */ -void sb_poweron_init(void) +void sb_Poweron_Init(void) { AMDSBCFG sb_early_cfg; @@ -62,3 +66,17 @@ void sb_poweron_init(void) // VerifyImage() will fail, LocateImage() take minitues to find the image. sbPowerOnInit(&sb_early_cfg); } + +/** + * CIMX not set the clock to 48Mhz until sbBeforePciInit, + * coreboot may need to set this even more earlier + */ +void sb800_clk_output_48Mhz(void) +{ + /* AcpiMMioDecodeEn */ + RWPMIO(SB_PMIOA_REG24, AccWidthUint8, ~(BIT0 + BIT1), BIT0); + + *(volatile u32 *)(ACPI_MMIO_BASE + MISC_BASE + 0x40) &= ~((1 << 0) | (1 << 2)); /* 48Mhz */ + *(volatile u32 *)(ACPI_MMIO_BASE + MISC_BASE + 0x40) |= 1 << 1; /* 48Mhz */ +} + |