diff options
Diffstat (limited to 'src/soc/intel/baytrail/xhci.c')
| -rw-r--r-- | src/soc/intel/baytrail/xhci.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/xhci.c b/src/soc/intel/baytrail/xhci.c index 19339e4b62..21a0c5fcd9 100644 --- a/src/soc/intel/baytrail/xhci.c +++ b/src/soc/intel/baytrail/xhci.c @@ -27,6 +27,8 @@ #include <baytrail/iomap.h> #include <baytrail/iosf.h> +#include <baytrail/lpc.h> +#include <baytrail/pattrs.h> #include <baytrail/pci_devs.h> #include <baytrail/pmc.h> #include <baytrail/ramstage.h> @@ -227,6 +229,13 @@ static void xhci_init(device_t dev) else reg_script_run_on_dev(dev, xhci_init_boot_script); + /* C0 steppings change iCLK/USB PLL VCO settings from 5 to 7 */ + if (pattrs_get()->stepping == STEP_C0) { + uint32_t reg = iosf_ushphy_read(USHPHY_CDN_PLL_CONTROL); + reg |= 0x00700000; + iosf_ushphy_write(USHPHY_CDN_PLL_CONTROL, reg); + } + /* Finalize Initialization */ reg_script_run_on_dev(dev, xhci_hc_init); |