diff options
| author | Guodong Liu <guodong.liu@mediatek.corp-partner.google.com> | 2022-06-11 10:37:47 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-07-06 15:32:23 +0000 |
| commit | ccaafdfa5a9834a43134f0b5d0bafd8a0748eec6 (patch) | |
| tree | 03ed43590c4c05afbbca0f59816c3de500e7ffce /src/soc/mediatek/mt8188/gpio.c | |
| parent | b4c5aed0a6b06e49f97d76755b17d292a36cad4c (diff) | |
soc/mediatek/mt8188: Add GPIO drivers
Add GPIO drivers to let other module control GPIOs.
TEST=build pass
BUG=b:233720142
Signed-off-by: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>
Change-Id: I0a2a5178949e9ad3e033ac332e0f1e8565e39b3d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65619
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/mediatek/mt8188/gpio.c')
| -rw-r--r-- | src/soc/mediatek/mt8188/gpio.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8188/gpio.c b/src/soc/mediatek/mt8188/gpio.c new file mode 100644 index 0000000000..4c4ee31edc --- /dev/null +++ b/src/soc/mediatek/mt8188/gpio.c @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* + * This file is created based on MT8188 Functional Specification + * Chapter number: 5.2 + */ + +#include <device/mmio.h> +#include <gpio.h> + +void *gpio_find_reg_addr(gpio_t gpio) +{ + void *reg_addr; + switch (gpio.base & 0x0f) { + case 1: + reg_addr = (void *)IOCFG_RM_BASE; + break; + case 2: + reg_addr = (void *)IOCFG_LT_BASE; + break; + case 3: + reg_addr = (void *)IOCFG_LM_BASE; + break; + case 4: + reg_addr = (void *)IOCFG_RT_BASE; + break; + default: + reg_addr = NULL; + break; + } + + return reg_addr; +} |