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| author | Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> | 2015-06-01 18:37:16 +0530 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-06-08 08:41:54 +0200 |
| commit | d348a943e77ed72dd809cecf03365552545382b2 (patch) | |
| tree | bae29b560def8ca251f63b3ef9b914af830b0a4f /arch/arm/imx-common | |
| parent | ae89bb0d363eba33074106309c81c02f84b91ef8 (diff) | |
| download | u-boot-imx-d348a943e77ed72dd809cecf03365552545382b2.zip u-boot-imx-d348a943e77ed72dd809cecf03365552545382b2.tar.gz u-boot-imx-d348a943e77ed72dd809cecf03365552545382b2.tar.bz2 | |
dm: gpio: vf610: Add GPIO driver support
Add GPIO driver support to Freescale VF610
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Diffstat (limited to 'arch/arm/imx-common')
| -rw-r--r-- | arch/arm/imx-common/iomux-v3.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/imx-common/iomux-v3.c b/arch/arm/imx-common/iomux-v3.c index e88e6e2..7fb23dd 100644 --- a/arch/arm/imx-common/iomux-v3.c +++ b/arch/arm/imx-common/iomux-v3.c @@ -92,3 +92,29 @@ void imx_iomux_set_gpr_register(int group, int start_bit, reg |= (value << start_bit); writel(reg, base + group * 4); } + +#ifdef CONFIG_IOMUX_SHARE_CONF_REG +void imx_iomux_gpio_set_direction(unsigned int gpio, + unsigned int direction) +{ + u32 reg; + /* + * Only on Vybrid the input/output buffer enable flags + * are part of the shared mux/conf register. + */ + reg = readl(base + (gpio << 2)); + + if (direction) + reg |= 0x2; + else + reg &= ~0x2; + + writel(reg, base + (gpio << 2)); +} + +void imx_iomux_gpio_get_function(unsigned int gpio, u32 *gpio_state) +{ + *gpio_state = readl(base + (gpio << 2)) & + ((0X07 << PAD_MUX_MODE_SHIFT) | PAD_CTL_OBE_IBE_ENABLE); +} +#endif |