diff options
| author | Taniya Das <quic_tdas@quicinc.com> | 2021-11-12 16:36:40 +0530 |
|---|---|---|
| committer | Shelley Chen <shchen@google.com> | 2021-11-16 17:26:21 +0000 |
| commit | d7e7d60e0fd71c53025d8b081b59cd3d8ee8657c (patch) | |
| tree | 93edc6a2617fc1502af5fdb4265c584e8644e523 /src | |
| parent | 88c0faddad9f57fd9dc3856d8ff881f498e18f10 (diff) | |
qualcomm/sc7280: gpio: Support eGPIO scheme
eGPIO is a scheme which allows special power island domain IOs to be
reused as regular chip GPIOs by muxing regular TLMM functions with
Island Domain functions. Allow the eGPIO to be configured via
gpio_configure API to be used as a TLMM gpio.
BUG=b:182963902
TEST=Validated on qualcomm sc7280 development board
Signed-off-by: Taniya Das <quic_tdas@quicinc.com>
Change-Id: Ib2598a41ba3bb8a8a2acff8253b5bb78633f89f9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58580
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/qualcomm/common/gpio.c | 4 | ||||
| -rw-r--r-- | src/soc/qualcomm/common/include/soc/gpio_common.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/src/soc/qualcomm/common/gpio.c b/src/soc/qualcomm/common/gpio.c index 1ed8e8a04b..5053f3ba5f 100644 --- a/src/soc/qualcomm/common/gpio.c +++ b/src/soc/qualcomm/common/gpio.c @@ -16,7 +16,9 @@ void gpio_configure(gpio_t gpio, uint32_t func, uint32_t pull, reg_val = ((enable & GPIO_BMSK) << GPIO_CFG_OE_SHFT) | ((drive_str & GPIO_CFG_DRV_BMSK) << GPIO_CFG_DRV_SHFT) | ((func & GPIO_CFG_FUNC_BMSK) << GPIO_CFG_FUNC_SHFT) | - ((pull & GPIO_CFG_PULL_BMSK) << GPIO_CFG_PULL_SHFT); + ((pull & GPIO_CFG_PULL_BMSK) << GPIO_CFG_PULL_SHFT) | + ((read32(®s->cfg) & GPIO_CFG_EGPIO_BMSK) + << GPIO_CFG_EGPIO_SHFT); write32(®s->cfg, reg_val); } diff --git a/src/soc/qualcomm/common/include/soc/gpio_common.h b/src/soc/qualcomm/common/include/soc/gpio_common.h index 20f947a326..18cd040269 100644 --- a/src/soc/qualcomm/common/include/soc/gpio_common.h +++ b/src/soc/qualcomm/common/include/soc/gpio_common.h @@ -21,6 +21,7 @@ enum gpio_tlmm_bmsk { GPIO_CFG_PULL_BMSK = 0x3, GPIO_CFG_FUNC_BMSK = 0xF, GPIO_CFG_DRV_BMSK = 0x7, + GPIO_CFG_EGPIO_BMSK = 0x800, }; /* GPIO TLMM INTR: Shift */ @@ -35,6 +36,7 @@ enum gpio_tlmm_shft { GPIO_CFG_FUNC_SHFT = 2, GPIO_CFG_DRV_SHFT = 6, GPIO_CFG_OE_SHFT = 9, + GPIO_CFG_EGPIO_SHFT = 1, }; /* GPIO IO: Shift */ |