Add information about the Exynos4210 pin banks, SoC specific configuration callbacks and driver data which is used by the Samsung pinctrl driver.
Signed-off-by: Thomas Abraham <[email protected]> --- drivers/pinctrl/Kconfig | 7 ++ drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinctrl-exynos4.c | 211 +++++++++++++++++++++++++++++++++++++ 3 files changed, 219 insertions(+), 0 deletions(-) create mode 100644 drivers/pinctrl/pinctrl-exynos4.c diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index a6198c1..5acb90e 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -131,6 +131,13 @@ config PINCTRL_SAMSUNG bool "Samsung pinctrl driver" depends on OF +config PINCTRL_EXYNOS4 + bool "Pinctrl driver data for Exynos4 SoC" + depends on ARCH_EXYNOS4 && OF + depends on PINCTRL_SAMSUNG + select PINMUX + select PINCONF + endmenu endif diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 35986ed..589498e 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -27,3 +27,4 @@ obj-$(CONFIG_PINCTRL_TEGRA30) += pinctrl-tegra30.o obj-$(CONFIG_PINCTRL_U300) += pinctrl-u300.o obj-$(CONFIG_PINCTRL_COH901) += pinctrl-coh901.o obj-$(CONFIG_PINCTRL_SAMSUNG) += pinctrl-samsung.o +obj-$(CONFIG_PINCTRL_EXYNOS4) += pinctrl-exynos4.o diff --git a/drivers/pinctrl/pinctrl-exynos4.c b/drivers/pinctrl/pinctrl-exynos4.c new file mode 100644 index 0000000..ed419b2 --- /dev/null +++ b/drivers/pinctrl/pinctrl-exynos4.c @@ -0,0 +1,211 @@ +/* + * Exynos4 specific driver data for Samsung pinctrl and gpiolib driver. + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2012 Linaro Ltd + * http://www.linaro.org + * + * This file contains the Exynos4 specific driver data for the Samsung + * pinctrl/gpiolib interface drivers. + * + * Author: Thomas Abraham <[email protected]> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/pinctrl/pinconf.h> +#include <linux/gpio.h> + +#include "pinctrl-samsung.h" + +#define EXYNOS4_PIN_BANK(offset, __gpio, id) \ + { \ + .reg_offset = offset, \ + .pin_base = (__gpio##_START), \ + .nr_pins = (__gpio##_NR), \ + .func_width = 4, \ + .pud_width = 2, \ + .drv_width = 2, \ + .name = id \ + } + +/* pin banks of pin-controller 0 */ +static struct samsung_pin_bank exynos4210_pin_banks0[] = { + EXYNOS4_PIN_BANK(0x000, EXYNOS4_GPIO_A0, "gpa0"), + EXYNOS4_PIN_BANK(0x020, EXYNOS4_GPIO_A1, "gpa1"), + EXYNOS4_PIN_BANK(0x040, EXYNOS4_GPIO_B, "gpb"), + EXYNOS4_PIN_BANK(0x060, EXYNOS4_GPIO_C0, "gpc0"), + EXYNOS4_PIN_BANK(0x080, EXYNOS4_GPIO_C1, "gpc1"), + EXYNOS4_PIN_BANK(0x0A0, EXYNOS4_GPIO_D0, "gpd0"), + EXYNOS4_PIN_BANK(0x0C0, EXYNOS4_GPIO_D1, "gpd1"), + EXYNOS4_PIN_BANK(0x0E0, EXYNOS4_GPIO_E0, "gpe0"), + EXYNOS4_PIN_BANK(0x100, EXYNOS4_GPIO_E1, "gpe1"), + EXYNOS4_PIN_BANK(0x120, EXYNOS4_GPIO_E2, "gpe2"), + EXYNOS4_PIN_BANK(0x140, EXYNOS4_GPIO_E3, "gpe3"), + EXYNOS4_PIN_BANK(0x160, EXYNOS4_GPIO_E4, "gpe4"), + EXYNOS4_PIN_BANK(0x180, EXYNOS4_GPIO_F0, "gpf0"), + EXYNOS4_PIN_BANK(0x1A0, EXYNOS4_GPIO_F1, "gpf1"), + EXYNOS4_PIN_BANK(0x1C0, EXYNOS4_GPIO_F2, "gpf2"), + EXYNOS4_PIN_BANK(0x1E0, EXYNOS4_GPIO_F3, "gpf3"), +}; + +#define EXYNOS4_PIN_BANK1(offset, __gpio, id) \ + { \ + .reg_offset = offset, \ + .pin_base = (__gpio##_START) - EXYNOS4_GPIO_J0_START,\ + .nr_pins = (__gpio##_NR), \ + .func_width = 4, \ + .pud_width = 2, \ + .drv_width = 2, \ + .name = id, \ + } + +/* pin banks of pin-controller 1 */ +static struct samsung_pin_bank exynos4210_pin_banks1[] = { + EXYNOS4_PIN_BANK1(0x000, EXYNOS4_GPIO_J0, "gpj0"), + EXYNOS4_PIN_BANK1(0x020, EXYNOS4_GPIO_J1, "gpj1"), + EXYNOS4_PIN_BANK1(0x040, EXYNOS4_GPIO_K0, "gpk0"), + EXYNOS4_PIN_BANK1(0x060, EXYNOS4_GPIO_K1, "gpk1"), + EXYNOS4_PIN_BANK1(0x080, EXYNOS4_GPIO_K2, "gpk2"), + EXYNOS4_PIN_BANK1(0x0A0, EXYNOS4_GPIO_K3, "gpk3"), + EXYNOS4_PIN_BANK1(0x0C0, EXYNOS4_GPIO_L0, "gpl0"), + EXYNOS4_PIN_BANK1(0x0E0, EXYNOS4_GPIO_L1, "gpl1"), + EXYNOS4_PIN_BANK1(0x100, EXYNOS4_GPIO_L2, "gpl2"), + EXYNOS4_PIN_BANK1(0x120, EXYNOS4_GPIO_Y0, "gpy0"), + EXYNOS4_PIN_BANK1(0x140, EXYNOS4_GPIO_Y1, "gpy1"), + EXYNOS4_PIN_BANK1(0x160, EXYNOS4_GPIO_Y2, "gpy2"), + EXYNOS4_PIN_BANK1(0x180, EXYNOS4_GPIO_Y3, "gpy3"), + EXYNOS4_PIN_BANK1(0x1A0, EXYNOS4_GPIO_Y4, "gpy4"), + EXYNOS4_PIN_BANK1(0x1C0, EXYNOS4_GPIO_Y5, "gpy5"), + EXYNOS4_PIN_BANK1(0x1E0, EXYNOS4_GPIO_Y6, "gpy6"), + EXYNOS4_PIN_BANK1(0xC00, EXYNOS4_GPIO_X0, "gpx0"), + EXYNOS4_PIN_BANK1(0xC20, EXYNOS4_GPIO_X1, "gpx1"), + EXYNOS4_PIN_BANK1(0xC40, EXYNOS4_GPIO_X2, "gpx2"), + EXYNOS4_PIN_BANK1(0xC60, EXYNOS4_GPIO_X3, "gpx3"), +}; + +#define EXYNOS4_PIN_BANK2(offset, __gpio, id) \ + { \ + .reg_offset = offset, \ + .pin_base = (__gpio##_START) - EXYNOS4_GPIO_Z_START,\ + .nr_pins = (__gpio##_NR), \ + .func_width = 4, \ + .pud_width = 2, \ + .drv_width = 2, \ + .name = id, \ + } + +/* pin banks of pin-controller 2 */ +static struct samsung_pin_bank exynos4210_pin_banks2[] = { + EXYNOS4_PIN_BANK2(0x000, EXYNOS4_GPIO_Z, "gpz"), +}; + +/* gpio range instance for pinctrl 0 */ +static struct pinctrl_gpio_range exynos4210_pctrl0_gpio_range = { + .name = "exynos4210_gpio_range0", + .id = 0, +}; + +/* gpio range instance for pinctrl 1 */ +static struct pinctrl_gpio_range exynos4210_pctrl1_gpio_range = { + .name = "exynos4210_gpio_range1", + .id = 0, +}; + +/* gpio range instance for pinctrl 2 */ +static struct pinctrl_gpio_range exynos4210_pctrl2_gpio_range = { + .name = "exynos4210_gpio_range2", + .id = 0, +}; + +/* + * Exynos4210 specific callback to translate PUD_xxx values into Exynos4210 + * specific register values. + */ +static int exynos4210_xlate_pud(unsigned int pud) +{ + if (pud == PUD_UP) + return 3; + else + return pud; +} + +/* + * Exynos4210 specific callback to translate DRV_xxx values into Exynos4210 + * specific register values. + */ +static int exynos4210_xlate_drv(unsigned int drv) +{ + switch (drv) { + case DRV_3X: + return 1; + case DRV_2X: + return 2; + default: + return drv; + } +} + +/* + * Samsung pinctrl driver data for Exynos4210 SoC. Exynos4210 SoC includes + * three gpio/pin-mux/pinconfig controllers. + */ +struct samsung_pinctrl_drv_data exynos4210_pinctrl_drv_data[] = { + { + /* pin-controller instance 0 data */ + .ctrl = &(struct samsung_pin_ctrl) { + .grange = &exynos4210_pctrl0_gpio_range, + .pin_banks = exynos4210_pin_banks0, + .nr_banks = ARRAY_SIZE(exynos4210_pin_banks0), + .base = EXYNOS4_GPIO_A0_START, + .nr_pins = EXYNOS4_GPIO_J0_START - 1, + .xlate_pud = exynos4210_xlate_pud, + .xlate_drv = exynos4210_xlate_drv, + .label = "exynos4210-gpio-ctrl0", + }, + .pctl = &(struct pinctrl_desc) { + .name = "exynos4210_pinctrl", + .owner = THIS_MODULE, + }, + }, { + /* pin-controller instance 1 data */ + .ctrl = &(struct samsung_pin_ctrl) { + .grange = &exynos4210_pctrl1_gpio_range, + .pin_banks = exynos4210_pin_banks1, + .nr_banks = ARRAY_SIZE(exynos4210_pin_banks1), + .base = EXYNOS4_GPIO_J0_START, + .nr_pins = EXYNOS4_GPIO_Z_START - + EXYNOS4_GPIO_J0_START, + .xlate_pud = exynos4210_xlate_pud, + .xlate_drv = exynos4210_xlate_drv, + .label = "exynos4210-gpio-ctrl1", + }, + .pctl = &(struct pinctrl_desc) { + .name = "exynos4210_pinctrl", + .owner = THIS_MODULE, + }, + }, { + /* pin-controller instance 2 data */ + .ctrl = &(struct samsung_pin_ctrl) { + .grange = &exynos4210_pctrl2_gpio_range, + .pin_banks = exynos4210_pin_banks2, + .nr_banks = ARRAY_SIZE(exynos4210_pin_banks2), + .base = EXYNOS4_GPIO_Z_START, + .nr_pins = EXYNOS4_GPIO_Z_NR, + .xlate_pud = exynos4210_xlate_pud, + .xlate_drv = exynos4210_xlate_drv, + .label = "exynos4210-gpio-ctrl2", + }, + .pctl = &(struct pinctrl_desc) { + .name = "exynos4210_pinctrl", + .owner = THIS_MODULE, + }, + }, +}; -- 1.6.6.rc2 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
