diff options
| author | Stefan Agner <stefan.agner@toradex.com> | 2016-10-05 15:27:11 -0700 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-10-07 12:26:15 +0200 |
| commit | 02ad90eca5d156914ec7aeadf1bac6160dc05f41 (patch) | |
| tree | 18bc9a31a39722400cd11dfc0081caffa75bd6c7 /board/toradex/colibri_imx7/colibri_imx7.c | |
| parent | cced7e5bb57311e894f06eb7c04ba62833e66939 (diff) | |
colibri_imx7: use Ricoh RN5T567 to reboot the board
Use the external PMIC Ricoh RN5T567 to reliably restart the system.
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Diffstat (limited to 'board/toradex/colibri_imx7/colibri_imx7.c')
| -rw-r--r-- | board/toradex/colibri_imx7/colibri_imx7.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/board/toradex/colibri_imx7/colibri_imx7.c b/board/toradex/colibri_imx7/colibri_imx7.c index bd7d5bc858..c64e31eaa4 100644 --- a/board/toradex/colibri_imx7/colibri_imx7.c +++ b/board/toradex/colibri_imx7/colibri_imx7.c @@ -21,6 +21,8 @@ #include <mmc.h> #include <miiphy.h> #include <netdev.h> +#include <power/pmic.h> +#include <power/rn5t567_pmic.h> #include <usb/ehci-ci.h> DECLARE_GLOBAL_DATA_PTR; @@ -337,6 +339,46 @@ int board_late_init(void) return 0; } +#ifdef CONFIG_DM_PMIC +int power_init_board(void) +{ + struct udevice *dev; + int reg, ver; + int ret; + + + ret = pmic_get("rn5t567", &dev); + if (ret) + return ret; + ver = pmic_reg_read(dev, RN5T567_LSIVER); + reg = pmic_reg_read(dev, RN5T567_OTPVER); + + printf("PMIC: RN5T567 LSIVER=0x%02x OTPVER=0x%02x\n", ver, reg); + + /* set judge and press timer of N_OE to minimal values */ + pmic_clrsetbits(dev, RN5T567_NOETIMSETCNT, 0x7, 0); + + return 0; +} + +void reset_cpu(ulong addr) +{ + struct udevice *dev; + + pmic_get("rn5t567", &dev); + + /* Use PMIC to reset, set REPWRTIM to 0 and REPWRON to 1 */ + pmic_reg_write(dev, RN5T567_REPCNT, 0x1); + pmic_reg_write(dev, RN5T567_SLPCNT, 0x1); + + /* + * Re-power factor detection on PMIC side is not instant. 1ms + * proved to be enough time until reset takes effect. + */ + mdelay(1); +} +#endif + int checkboard(void) { printf("Model: Toradex Colibri iMX7%c\n", |