diff options
Diffstat (limited to 'src/soc/intel/apollolake/lpc.c')
| -rw-r--r-- | src/soc/intel/apollolake/lpc.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/lpc.c b/src/soc/intel/apollolake/lpc.c index 48dfb1fe3d..cc4de886e3 100644 --- a/src/soc/intel/apollolake/lpc.c +++ b/src/soc/intel/apollolake/lpc.c @@ -15,13 +15,17 @@ * GNU General Public License for more details. */ +#include <cbmem.h> #include <console/console.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> +#include <pc80/mc146818rtc.h> #include <soc/acpi.h> #include <soc/lpc.h> #include <soc/pci_ids.h> +#include <soc/pm.h> +#include <vendorcode/google/chromeos/chromeos.h> #include "chip.h" @@ -43,6 +47,25 @@ * opens up IO and memory windows as needed. */ +static void rtc_init(void) +{ + int rtc_fail; + const struct chipset_power_state *ps = cbmem_find(CBMEM_ID_POWER_STATE); + + if (!ps) { + printk(BIOS_ERR, "Could not find power state in cbmem, RTC init aborted\n"); + return; + } + + rtc_fail = !!(ps->gen_pmcon1 & RPS); + /* Ensure the date is set including century byte. */ + cmos_check_update_date(); + if (IS_ENABLED(CONFIG_CHROMEOS_VBNV_CMOS)) + init_vbnv_cmos(rtc_fail); + else + cmos_init(rtc_fail); +} + static void lpc_init(struct device *dev) { uint8_t scnt; @@ -61,6 +84,9 @@ static void lpc_init(struct device *dev) else if (cfg->serirq_mode == SERIRQ_CONTINUOUS) scnt |= SCNT_EN | SCNT_MODE; pci_write_config8(dev, REG_SERIRQ_CTL, scnt); + + /* Initialize RTC */ + rtc_init(); } static void soc_lpc_add_io_resources(device_t dev) |