diff options
Diffstat (limited to 'src/mainboard/siemens/mc_apl1/mainboard.c')
| -rw-r--r-- | src/mainboard/siemens/mc_apl1/mainboard.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/mainboard/siemens/mc_apl1/mainboard.c b/src/mainboard/siemens/mc_apl1/mainboard.c index c931e1008a..22d37bfdc2 100644 --- a/src/mainboard/siemens/mc_apl1/mainboard.c +++ b/src/mainboard/siemens/mc_apl1/mainboard.c @@ -83,6 +83,10 @@ #define SPI_REG_OPMENU_L 0xa8 #define SPI_REG_OPMENU_H 0xac +#define SD_CAP_BYP 0x810 +#define SD_CAP_BYP_EN 0x5A +#define SD_CAP_BYP_REG1 0x814 + /** \brief This function can decide if a given MAC address is valid or not. * Currently, addresses filled with 0xff or 0x00 are not valid. * @param mac Buffer to the MAC address to check @@ -265,6 +269,21 @@ static void mainboard_final(void *chip_info) ((SPI_OPTYPE << 16) | SPI_OPPREFIX)); write32((spi_base + SPI_REG_OPMENU_L), SPI_OPMENU_LOWER); write32((spi_base + SPI_REG_OPMENU_H), SPI_OPMENU_UPPER); + + /* Set SD-Card speed to HS mode only. */ + dev = pcidev_path_on_root(PCH_DEVFN_SDCARD); + if (dev) { + uint32_t reg; + struct resource *res = find_resource(dev, PCI_BASE_ADDRESS_0); + if (!res) + return; + + write32(res2mmio(res, SD_CAP_BYP, 0), SD_CAP_BYP_EN); + reg = read32(res2mmio(res, SD_CAP_BYP_REG1, 0)); + /* Disable all UHS-I SD-Card speed modes, keep only HS mode. */ + reg &= ~0x2000f800; + write32(res2mmio(res, SD_CAP_BYP_REG1, 0), reg); + } } /* The following function performs board specific things. */ |