From 809f36c6f4a0568178c909ff1096ca83eae33f7d Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Tue, 1 Nov 2011 20:03:30 +0100 Subject: MIPS: Alchemy: Au1300 SoC support Add basic support for the Au1300 variant(s): - New GPIO/Interrupt controller - DBDMA ids - USB setup - MMC support - enable various PSC drivers - detection code. Signed-off-by: Manuel Lauss To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2866/ Signed-off-by: Ralf Baechle --- arch/mips/alchemy/common/gpiolib.c | 42 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'arch/mips/alchemy/common/gpiolib.c') diff --git a/arch/mips/alchemy/common/gpiolib.c b/arch/mips/alchemy/common/gpiolib.c index 91fb4d9e30fd..f1b50f0c01db 100644 --- a/arch/mips/alchemy/common/gpiolib.c +++ b/arch/mips/alchemy/common/gpiolib.c @@ -27,6 +27,7 @@ * CONFIG_ALCHEMY_GPIO_INDIRECT=n, otherwise compilation will fail! * au1000 SoC have only one GPIO block : GPIO1 * Au1100, Au15x0, Au12x0 have a second one : GPIO2 + * Au1300 is totally different: 1 block with up to 128 GPIOs */ #include @@ -35,6 +36,7 @@ #include #include #include +#include static int gpio2_get(struct gpio_chip *chip, unsigned offset) { @@ -115,6 +117,43 @@ struct gpio_chip alchemy_gpio_chip[] = { }, }; +static int alchemy_gpic_get(struct gpio_chip *chip, unsigned int off) +{ + return au1300_gpio_get_value(off + AU1300_GPIO_BASE); +} + +static void alchemy_gpic_set(struct gpio_chip *chip, unsigned int off, int v) +{ + au1300_gpio_set_value(off + AU1300_GPIO_BASE, v); +} + +static int alchemy_gpic_dir_input(struct gpio_chip *chip, unsigned int off) +{ + return au1300_gpio_direction_input(off + AU1300_GPIO_BASE); +} + +static int alchemy_gpic_dir_output(struct gpio_chip *chip, unsigned int off, + int v) +{ + return au1300_gpio_direction_output(off + AU1300_GPIO_BASE, v); +} + +static int alchemy_gpic_gpio_to_irq(struct gpio_chip *chip, unsigned int off) +{ + return au1300_gpio_to_irq(off + AU1300_GPIO_BASE); +} + +static struct gpio_chip au1300_gpiochip = { + .label = "alchemy-gpic", + .direction_input = alchemy_gpic_dir_input, + .direction_output = alchemy_gpic_dir_output, + .get = alchemy_gpic_get, + .set = alchemy_gpic_set, + .to_irq = alchemy_gpic_gpio_to_irq, + .base = AU1300_GPIO_BASE, + .ngpio = AU1300_GPIO_NUM, +}; + static int __init alchemy_gpiochip_init(void) { int ret = 0; @@ -127,6 +166,9 @@ static int __init alchemy_gpiochip_init(void) ret = gpiochip_add(&alchemy_gpio_chip[0]); ret |= gpiochip_add(&alchemy_gpio_chip[1]); break; + case ALCHEMY_CPU_AU1300: + ret = gpiochip_add(&au1300_gpiochip); + break; } return ret; } -- cgit v1.2.3