diff options
Diffstat (limited to 'src/mainboard/google/nyan/pmic.c')
| -rw-r--r-- | src/mainboard/google/nyan/pmic.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/mainboard/google/nyan/pmic.c b/src/mainboard/google/nyan/pmic.c index a6e881d10f71..dc5f7447a612 100644 --- a/src/mainboard/google/nyan/pmic.c +++ b/src/mainboard/google/nyan/pmic.c @@ -18,6 +18,7 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <console/console.h> #include <delay.h> #include <device/i2c.h> #include <stdint.h> @@ -25,6 +26,7 @@ #include "boardid.h" #include "pmic.h" +#include "reset.h" enum { AS3722_I2C_ADDR = 0x40 @@ -59,9 +61,15 @@ static struct as3722_init_reg init_list[] = { static void pmic_write_reg(unsigned bus, uint8_t reg, uint8_t val, int do_delay) { - i2c_writeb(bus, AS3722_I2C_ADDR, reg, val); - if (do_delay) - udelay(500); + if (i2c_writeb(bus, AS3722_I2C_ADDR, reg, val)) { + printk(BIOS_ERR, "%s: reg = 0x%02X, value = 0x%02X failed!\n", + __func__, reg, val); + /* Reset the SoC on any PMIC write error */ + cpu_reset(); + } else { + if (do_delay) + udelay(500); + } } static void pmic_slam_defaults(unsigned bus) |