diff options
Diffstat (limited to 'arch/arm/mach-s3c/include/plat')
20 files changed, 1418 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/include/plat/adc-core.h b/arch/arm/mach-s3c/include/plat/adc-core.h new file mode 100644 index 000000000000..039f6862b6a7 --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/adc-core.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Samsung ADC Controller core functions + */ + +#ifndef __ASM_PLAT_ADC_CORE_H +#define __ASM_PLAT_ADC_CORE_H __FILE__ + +/* These functions are only for use with the core support code, such as + * the cpu specific initialisation code + */ + +/* re-define device name depending on support. */ +static inline void s3c_adc_setname(char *name) +{ +#if defined(CONFIG_SAMSUNG_DEV_ADC) || defined(CONFIG_PLAT_S3C24XX) + s3c_device_adc.name = name; +#endif +} + +#endif /* __ASM_PLAT_ADC_CORE_H */ diff --git a/arch/arm/mach-s3c/include/plat/cpu.h b/arch/arm/mach-s3c/include/plat/cpu.h new file mode 100644 index 000000000000..20ff98d05c53 --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/cpu.h @@ -0,0 +1,128 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Copyright (c) 2004-2005 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Header file for Samsung CPU support + */ + +/* todo - fix when rmk changes iodescs to use `void __iomem *` */ + +#ifndef __SAMSUNG_PLAT_CPU_H +#define __SAMSUNG_PLAT_CPU_H + +extern unsigned long samsung_cpu_id; + +#define S3C2410_CPU_ID 0x32410000 +#define S3C2410_CPU_MASK 0xFFFFFFFF + +#define S3C24XX_CPU_ID 0x32400000 +#define S3C24XX_CPU_MASK 0xFFF00000 + +#define S3C2412_CPU_ID 0x32412000 +#define S3C2412_CPU_MASK 0xFFFFF000 + +#define S3C6400_CPU_ID 0x36400000 +#define S3C6410_CPU_ID 0x36410000 +#define S3C64XX_CPU_MASK 0xFFFFF000 + +#define S5PV210_CPU_ID 0x43110000 +#define S5PV210_CPU_MASK 0xFFFFF000 + +#define IS_SAMSUNG_CPU(name, id, mask) \ +static inline int is_samsung_##name(void) \ +{ \ + return ((samsung_cpu_id & mask) == (id & mask)); \ +} + +IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK) +IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK) +IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK) +IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK) +IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK) + +#if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \ + defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \ + defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \ + defined(CONFIG_CPU_S3C2443) +# define soc_is_s3c24xx() is_samsung_s3c24xx() +# define soc_is_s3c2410() is_samsung_s3c2410() +#else +# define soc_is_s3c24xx() 0 +# define soc_is_s3c2410() 0 +#endif + +#if defined(CONFIG_CPU_S3C2412) +# define soc_is_s3c2412() is_samsung_s3c2412() +#else +# define soc_is_s3c2412() 0 +#endif + +#if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410) +# define soc_is_s3c6400() is_samsung_s3c6400() +# define soc_is_s3c6410() is_samsung_s3c6410() +# define soc_is_s3c64xx() (is_samsung_s3c6400() || is_samsung_s3c6410()) +#else +# define soc_is_s3c6400() 0 +# define soc_is_s3c6410() 0 +# define soc_is_s3c64xx() 0 +#endif + +#define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE } + +#ifndef KHZ +#define KHZ (1000) +#endif + +#ifndef MHZ +#define MHZ (1000*1000) +#endif + +#define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000) + +/* forward declaration */ +struct s3c24xx_uart_resources; +struct platform_device; +struct s3c2410_uartcfg; +struct map_desc; + +/* per-cpu initialisation function table. */ + +struct cpu_table { + unsigned long idcode; + unsigned long idmask; + void (*map_io)(void); + void (*init_uarts)(struct s3c2410_uartcfg *cfg, int no); + void (*init_clocks)(int xtal); + int (*init)(void); + const char *name; +}; + +extern void s3c_init_cpu(unsigned long idcode, + struct cpu_table *cpus, unsigned int cputab_size); + +/* core initialisation functions */ + +extern void s3c24xx_init_io(struct map_desc *mach_desc, int size); + +extern void s3c64xx_init_cpu(void); + +extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); + +extern void s3c24xx_init_clocks(int xtal); + +extern void s3c24xx_init_uartdevs(char *name, + struct s3c24xx_uart_resources *res, + struct s3c2410_uartcfg *cfg, int no); + +extern struct syscore_ops s3c2410_pm_syscore_ops; +extern struct syscore_ops s3c2412_pm_syscore_ops; +extern struct syscore_ops s3c2416_pm_syscore_ops; +extern struct syscore_ops s3c244x_pm_syscore_ops; + +extern struct bus_type s3c6410_subsys; + +#endif diff --git a/arch/arm/mach-s3c/include/plat/devs.h b/arch/arm/mach-s3c/include/plat/devs.h new file mode 100644 index 000000000000..02b0c5750572 --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/devs.h @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Copyright (c) 2004 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Header file for s3c2410 standard platform devices + */ + +#ifndef __PLAT_DEVS_H +#define __PLAT_DEVS_H __FILE__ + +#include <linux/platform_device.h> + +struct s3c24xx_uart_resources { + struct resource *resources; + unsigned long nr_resources; +}; + +extern struct s3c24xx_uart_resources s3c2410_uart_resources[]; +extern struct s3c24xx_uart_resources s3c64xx_uart_resources[]; + +extern struct platform_device *s3c24xx_uart_devs[]; +extern struct platform_device *s3c24xx_uart_src[]; + +extern struct platform_device s3c64xx_device_ac97; +extern struct platform_device s3c64xx_device_iis0; +extern struct platform_device s3c64xx_device_iis1; +extern struct platform_device s3c64xx_device_iisv4; +extern struct platform_device s3c64xx_device_onenand1; +extern struct platform_device s3c64xx_device_pcm0; +extern struct platform_device s3c64xx_device_pcm1; +extern struct platform_device s3c64xx_device_spi0; +extern struct platform_device s3c64xx_device_spi1; +extern struct platform_device s3c64xx_device_spi2; + +extern struct platform_device s3c_device_adc; +extern struct platform_device s3c_device_cfcon; +extern struct platform_device s3c_device_fb; +extern struct platform_device s3c_device_hwmon; +extern struct platform_device s3c_device_hsmmc0; +extern struct platform_device s3c_device_hsmmc1; +extern struct platform_device s3c_device_hsmmc2; +extern struct platform_device s3c_device_hsmmc3; +extern struct platform_device s3c_device_i2c0; +extern struct platform_device s3c_device_i2c1; +extern struct platform_device s3c_device_i2c2; +extern struct platform_device s3c_device_i2c3; +extern struct platform_device s3c_device_i2c4; +extern struct platform_device s3c_device_i2c5; +extern struct platform_device s3c_device_i2c6; +extern struct platform_device s3c_device_i2c7; +extern struct platform_device s3c_device_iis; +extern struct platform_device s3c_device_lcd; +extern struct platform_device s3c_device_nand; +extern struct platform_device s3c_device_ohci; +extern struct platform_device s3c_device_onenand; +extern struct platform_device s3c_device_rtc; +extern struct platform_device s3c_device_sdi; +extern struct platform_device s3c_device_spi0; +extern struct platform_device s3c_device_spi1; +extern struct platform_device s3c_device_ts; +extern struct platform_device s3c_device_timer[]; +extern struct platform_device s3c_device_usbgadget; +extern struct platform_device s3c_device_usb_hsotg; +extern struct platform_device s3c_device_usb_hsudc; +extern struct platform_device s3c_device_wdt; + +extern struct platform_device samsung_asoc_idma; +extern struct platform_device samsung_device_keypad; +extern struct platform_device samsung_device_pwm; + +/* s3c2440 specific devices */ + +#ifdef CONFIG_CPU_S3C2440 + +extern struct platform_device s3c_device_camif; +extern struct platform_device s3c_device_ac97; + +#endif + +/** + * s3c_set_platdata() - helper for setting platform data + * @pd: The default platform data for this device. + * @pdsize: The size of the platform data. + * @pdev: Pointer to the device to fill in. + * + * This helper replaces a number of calls that copy and then set the + * platform data of the device. + */ +extern void *s3c_set_platdata(void *pd, size_t pdsize, + struct platform_device *pdev); + +#endif /* __PLAT_DEVS_H */ diff --git a/arch/arm/mach-s3c/include/plat/fb.h b/arch/arm/mach-s3c/include/plat/fb.h new file mode 100644 index 000000000000..615d381ae32e --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/fb.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C - FB platform data definitions + */ + +#ifndef __PLAT_S3C_FB_H +#define __PLAT_S3C_FB_H __FILE__ + +#include <linux/platform_data/video_s3c.h> + +/** + * s3c_fb_set_platdata() - Setup the FB device with platform data. + * @pd: The platform data to set. The data is copied from the passed structure + * so the machine data can mark the data __initdata so that any unused + * machines will end up dumping their data at runtime. + */ +extern void s3c_fb_set_platdata(struct s3c_fb_platdata *pd); + +/** + * s3c64xx_fb_gpio_setup_24bpp() - S3C64XX setup function for 24bpp LCD + * + * Initialise the GPIO for an 24bpp LCD display on the RGB interface. + */ +extern void s3c64xx_fb_gpio_setup_24bpp(void); + +#endif /* __PLAT_S3C_FB_H */ diff --git a/arch/arm/mach-s3c/include/plat/gpio-cfg-helpers.h b/arch/arm/mach-s3c/include/plat/gpio-cfg-helpers.h new file mode 100644 index 000000000000..db0c56f5ca15 --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/gpio-cfg-helpers.h @@ -0,0 +1,159 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * Samsung Platform - GPIO pin configuration helper definitions + */ + +/* This is meant for core cpu support, machine or other driver files + * should not be including this header. + */ + +#ifndef __PLAT_GPIO_CFG_HELPERS_H +#define __PLAT_GPIO_CFG_HELPERS_H __FILE__ + +/* As a note, all gpio configuration functions are entered exclusively, either + * with the relevant lock held or the system prevented from doing anything else + * by disabling interrupts. +*/ + +static inline int samsung_gpio_do_setcfg(struct samsung_gpio_chip *chip, + unsigned int off, unsigned int config) +{ + return (chip->config->set_config)(chip, off, config); +} + +static inline unsigned samsung_gpio_do_getcfg(struct samsung_gpio_chip *chip, + unsigned int off) +{ + return (chip->config->get_config)(chip, off); +} + +static inline int samsung_gpio_do_setpull(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull) +{ + return (chip->config->set_pull)(chip, off, pull); +} + +static inline samsung_gpio_pull_t samsung_gpio_do_getpull(struct samsung_gpio_chip *chip, + unsigned int off) +{ + return chip->config->get_pull(chip, off); +} + +/* Pull-{up,down} resistor controls. + * + * S3C2410,S3C2440 = Pull-UP, + * S3C2412,S3C2413 = Pull-Down + * S3C6400,S3C6410 = Pull-Both [None,Down,Up,Undef] + * S3C2443 = Pull-Both [not same as S3C6400] + */ + +/** + * s3c24xx_gpio_setpull_1up() - Pull configuration for choice of up or none. + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * @param: pull: The pull mode being requested. + * + * This is a helper function for the case where we have GPIOs with one + * bit configuring the presence of a pull-up resistor. + */ +extern int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); + +/** + * s3c24xx_gpio_setpull_1down() - Pull configuration for choice of down or none + * @chip: The gpio chip that is being configured + * @off: The offset for the GPIO being configured + * @param: pull: The pull mode being requested + * + * This is a helper function for the case where we have GPIOs with one + * bit configuring the presence of a pull-down resistor. + */ +extern int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); + +/** + * samsung_gpio_setpull_upown() - Pull configuration for choice of up, + * down or none + * + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * @param: pull: The pull mode being requested. + * + * This is a helper function for the case where we have GPIOs with two + * bits configuring the presence of a pull resistor, in the following + * order: + * 00 = No pull resistor connected + * 01 = Pull-up resistor connected + * 10 = Pull-down resistor connected + */ +extern int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); + +/** + * samsung_gpio_getpull_updown() - Get configuration for choice of up, + * down or none + * + * @chip: The gpio chip that the GPIO pin belongs to + * @off: The offset to the pin to get the configuration of. + * + * This helper function reads the state of the pull-{up,down} resistor + * for the given GPIO in the same case as samsung_gpio_setpull_upown. +*/ +extern samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip, + unsigned int off); + +/** + * s3c24xx_gpio_getpull_1up() - Get configuration for choice of up or none + * @chip: The gpio chip that the GPIO pin belongs to + * @off: The offset to the pin to get the configuration of. + * + * This helper function reads the state of the pull-up resistor for the + * given GPIO in the same case as s3c24xx_gpio_setpull_1up. +*/ +extern samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip, + unsigned int off); + +/** + * s3c24xx_gpio_getpull_1down() - Get configuration for choice of down or none + * @chip: The gpio chip that the GPIO pin belongs to + * @off: The offset to the pin to get the configuration of. + * + * This helper function reads the state of the pull-down resistor for the + * given GPIO in the same case as s3c24xx_gpio_setpull_1down. +*/ +extern samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip, + unsigned int off); + +/** + * s3c2443_gpio_setpull() - Pull configuration for s3c2443. + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * @param: pull: The pull mode being requested. + * + * This is a helper function for the case where we have GPIOs with two + * bits configuring the presence of a pull resistor, in the following + * order: + * 00 = Pull-up resistor connected + * 10 = Pull-down resistor connected + * x1 = No pull up resistor + */ +extern int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); + +/** + * s3c2443_gpio_getpull() - Get configuration for s3c2443 pull resistors + * @chip: The gpio chip that the GPIO pin belongs to. + * @off: The offset to the pin to get the configuration of. + * + * This helper function reads the state of the pull-{up,down} resistor for the + * given GPIO in the same case as samsung_gpio_setpull_upown. +*/ +extern samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip, + unsigned int off); + +#endif /* __PLAT_GPIO_CFG_HELPERS_H */ diff --git a/arch/arm/mach-s3c/include/plat/gpio-cfg.h b/arch/arm/mach-s3c/include/plat/gpio-cfg.h new file mode 100644 index 000000000000..469c220e092b --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/gpio-cfg.h @@ -0,0 +1,178 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C Platform - GPIO pin configuration + */ + +/* This file contains the necessary definitions to get the basic gpio + * pin configuration done such as setting a pin to input or output or + * changing the pull-{up,down} configurations. + */ + +/* Note, this interface is being added to the s3c64xx arch first and will + * be added to the s3c24xx systems later. + */ + +#ifndef __PLAT_GPIO_CFG_H +#define __PLAT_GPIO_CFG_H __FILE__ + +#include <linux/types.h> + +typedef unsigned int __bitwise samsung_gpio_pull_t; + +/* forward declaration if gpio-core.h hasn't been included */ +struct samsung_gpio_chip; + +/** + * struct samsung_gpio_cfg GPIO configuration + * @cfg_eint: Configuration setting when used for external interrupt source + * @get_pull: Read the current pull configuration for the GPIO + * @set_pull: Set the current pull configuration for the GPIO + * @set_config: Set the current configuration for the GPIO + * @get_config: Read the current configuration for the GPIO + * + * Each chip can have more than one type of GPIO bank available and some + * have different capabilites even when they have the same control register + * layouts. Provide an point to vector control routine and provide any + * per-bank configuration information that other systems such as the + * external interrupt code will need. + * + * @sa samsung_gpio_cfgpin + * @sa s3c_gpio_getcfg + * @sa s3c_gpio_setpull + * @sa s3c_gpio_getpull + */ +struct samsung_gpio_cfg { + unsigned int cfg_eint; + + samsung_gpio_pull_t (*get_pull)(struct samsung_gpio_chip *chip, unsigned offs); + int (*set_pull)(struct samsung_gpio_chip *chip, unsigned offs, + samsung_gpio_pull_t pull); + + unsigned (*get_config)(struct samsung_gpio_chip *chip, unsigned offs); + int (*set_config)(struct samsung_gpio_chip *chip, unsigned offs, + unsigned config); +}; + +#define S3C_GPIO_SPECIAL_MARK (0xfffffff0) +#define S3C_GPIO_SPECIAL(x) (S3C_GPIO_SPECIAL_MARK | (x)) + +/* Defines for generic pin configurations */ +#define S3C_GPIO_INPUT (S3C_GPIO_SPECIAL(0)) +#define S3C_GPIO_OUTPUT (S3C_GPIO_SPECIAL(1)) +#define S3C_GPIO_SFN(x) (S3C_GPIO_SPECIAL(x)) + +#define samsung_gpio_is_cfg_special(_cfg) \ + (((_cfg) & S3C_GPIO_SPECIAL_MARK) == S3C_GPIO_SPECIAL_MARK) + +/** + * s3c_gpio_cfgpin() - Change the GPIO function of a pin. + * @pin pin The pin number to configure. + * @to to The configuration for the pin's function. + * + * Configure which function is actually connected to the external + * pin, such as an gpio input, output or some form of special function + * connected to an internal peripheral block. + * + * The @to parameter can be one of the generic S3C_GPIO_INPUT, S3C_GPIO_OUTPUT + * or S3C_GPIO_SFN() to indicate one of the possible values that the helper + * will then generate the correct bit mask and shift for the configuration. + * + * If a bank of GPIOs all needs to be set to special-function 2, then + * the following code will work: + * + * for (gpio = start; gpio < end; gpio++) + * s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + * + * The @to parameter can also be a specific value already shifted to the + * correct position in the control register, although these are discouraged + * in newer kernels and are only being kept for compatibility. + */ +extern int s3c_gpio_cfgpin(unsigned int pin, unsigned int to); + +/** + * s3c_gpio_getcfg - Read the current function for a GPIO pin + * @pin: The pin to read the configuration value for. + * + * Read the configuration state of the given @pin, returning a value that + * could be passed back to s3c_gpio_cfgpin(). + * + * @sa s3c_gpio_cfgpin + */ +extern unsigned s3c_gpio_getcfg(unsigned int pin); + +/** + * s3c_gpio_cfgpin_range() - Change the GPIO function for configuring pin range + * @start: The pin number to start at + * @nr: The number of pins to configure from @start. + * @cfg: The configuration for the pin's function + * + * Call s3c_gpio_cfgpin() for the @nr pins starting at @start. + * + * @sa s3c_gpio_cfgpin. + */ +extern int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr, + unsigned int cfg); + +/* Define values for the pull-{up,down} available for each gpio pin. + * + * These values control the state of the weak pull-{up,down} resistors + * available on most pins on the S3C series. Not all chips support both + * up or down settings, and it may be dependent on the chip that is being + * used to whether the particular mode is available. + */ +#define S3C_GPIO_PULL_NONE ((__force samsung_gpio_pull_t)0x00) +#define S3C_GPIO_PULL_DOWN ((__force samsung_gpio_pull_t)0x01) +#define S3C_GPIO_PULL_UP ((__force samsung_gpio_pull_t)0x02) + +/** + * s3c_gpio_setpull() - set the state of a gpio pin pull resistor + * @pin: The pin number to configure the pull resistor. + * @pull: The configuration for the pull resistor. + * + * This function sets the state of the pull-{up,down} resistor for the + * specified pin. It will return 0 if successful, or a negative error + * code if the pin cannot support the requested pull setting. + * + * @pull is one of S3C_GPIO_PULL_NONE, S3C_GPIO_PULL_DOWN or S3C_GPIO_PULL_UP. +*/ +extern int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull); + +/** + * s3c_gpio_getpull() - get the pull resistor state of a gpio pin + * @pin: The pin number to get the settings for + * + * Read the pull resistor value for the specified pin. +*/ +extern samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin); + +/* configure `all` aspects of an gpio */ + +/** + * s3c_gpio_cfgall_range() - configure range of gpio functtion and pull. + * @start: The gpio number to start at. + * @nr: The number of gpio to configure from @start. + * @cfg: The configuration to use + * @pull: The pull setting to use. + * + * Run s3c_gpio_cfgpin() and s3c_gpio_setpull() over the gpio range starting + * @gpio and running for @size. + * + * @sa s3c_gpio_cfgpin + * @sa s3c_gpio_setpull + * @sa s3c_gpio_cfgpin_range + */ +extern int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr, + unsigned int cfg, samsung_gpio_pull_t pull); + +static inline int s3c_gpio_cfgrange_nopull(unsigned int pin, unsigned int size, + unsigned int cfg) +{ + return s3c_gpio_cfgall_range(pin, size, cfg, S3C_GPIO_PULL_NONE); +} + +#endif /* __PLAT_GPIO_CFG_H */ diff --git a/arch/arm/mach-s3c/include/plat/gpio-core.h b/arch/arm/mach-s3c/include/plat/gpio-core.h new file mode 100644 index 000000000000..c0bfceb88340 --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/gpio-core.h @@ -0,0 +1,142 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C Platform - GPIO core + */ + +#ifndef __PLAT_SAMSUNG_GPIO_CORE_H +#define __PLAT_SAMSUNG_GPIO_CORE_H + +/* Bring in machine-local definitions, especially S3C_GPIO_END */ +#include <mach/gpio-samsung.h> +#include <linux/gpio/driver.h> + +#define GPIOCON_OFF (0x00) +#define GPIODAT_OFF (0x04) + +#define con_4bit_shift(__off) ((__off) * 4) + +/* Define the core gpiolib support functions that the s3c platforms may + * need to extend or change depending on the hardware and the s3c chip + * selected at build or found at run time. + * + * These definitions are not intended for driver inclusion, there is + * nothing here that should not live outside the platform and core + * specific code. +*/ + +struct samsung_gpio_chip; + +/** + * struct samsung_gpio_pm - power management (suspend/resume) information + * @save: Routine to save the state of the GPIO block + * @resume: Routine to resume the GPIO block. + */ +struct samsung_gpio_pm { + void (*save)(struct samsung_gpio_chip *chip); + void (*resume)(struct samsung_gpio_chip *chip); +}; + +struct samsung_gpio_cfg; + +/** + * struct samsung_gpio_chip - wrapper for specific implementation of gpio + * @chip: The chip structure to be exported via gpiolib. + * @base: The base pointer to the gpio configuration registers. + * @group: The group register number for gpio interrupt support. + * @irq_base: The base irq number. + * @config: special function and pull-resistor control information. + * @lock: Lock for exclusive access to this gpio bank. + * @pm_save: Save information for suspend/resume support. + * @bitmap_gpio_int: Bitmap for representing GPIO interrupt or not. + * + * This wrapper provides the necessary information for the Samsung + * specific gpios being registered with gpiolib. + * + * The lock protects each gpio bank from multiple access of the shared + * configuration registers, or from reading of data whilst another thread + * is writing to the register set. + * + * Each chip has its own lock to avoid any contention between different + * CPU cores trying to get one lock for different GPIO banks, where each + * bank of GPIO has its own register space and configuration registers. + */ +struct samsung_gpio_chip { + struct gpio_chip chip; + struct samsung_gpio_cfg *config; + struct samsung_gpio_pm *pm; + void __iomem *base; + int irq_base; + int group; + spinlock_t lock; +#ifdef CONFIG_PM + u32 pm_save[4]; +#endif + u32 bitmap_gpio_int; +}; + +static inline struct samsung_gpio_chip *to_samsung_gpio(struct gpio_chip *gpc) +{ + return container_of(gpc, struct samsung_gpio_chip, chip); +} + +/** + * samsung_gpiolib_to_irq - convert gpio pin to irq number + * @chip: The gpio chip that the pin belongs to. + * @offset: The offset of the pin in the chip. + * + * This helper returns the irq number calculated from the chip->irq_base and + * the provided offset. + */ +extern int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset); + +/* exported for core SoC support to change */ +extern struct samsung_gpio_cfg s3c24xx_gpiocfg_default; + +#ifdef CONFIG_S3C_GPIO_TRACK +extern struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END]; + +static inline struct samsung_gpio_chip *samsung_gpiolib_getchip(unsigned int chip) +{ + return (chip < S3C_GPIO_END) ? s3c_gpios[chip] : NULL; +} +#else +/* machine specific code should provide samsung_gpiolib_getchip */ + +extern struct samsung_gpio_chip s3c24xx_gpios[]; + +static inline struct samsung_gpio_chip *samsung_gpiolib_getchip(unsigned int pin) +{ + struct samsung_gpio_chip *chip; + + if (pin > S3C_GPIO_END) + return NULL; + + chip = &s3c24xx_gpios[pin/32]; + return ((pin - chip->chip.base) < chip->chip.ngpio) ? chip : NULL; +} + +static inline void s3c_gpiolib_track(struct samsung_gpio_chip *chip) { } +#endif + +#ifdef CONFIG_PM +extern struct samsung_gpio_pm samsung_gpio_pm_1bit; +extern struct samsung_gpio_pm samsung_gpio_pm_2bit; +extern struct samsung_gpio_pm samsung_gpio_pm_4bit; +#define __gpio_pm(x) x +#else +#define samsung_gpio_pm_1bit NULL +#define samsung_gpio_pm_2bit NULL +#define samsung_gpio_pm_4bit NULL +#define __gpio_pm(x) NULL + +#endif /* CONFIG_PM */ + +/* locking wrappers to deal with multiple access to the same gpio bank */ +#define samsung_gpio_lock(_oc, _fl) spin_lock_irqsave(&(_oc)->lock, _fl) +#define samsung_gpio_unlock(_oc, _fl) spin_unlock_irqrestore(&(_oc)->lock, _fl) + +#endif /* __PLAT_SAMSUNG_GPIO_CORE_H */ diff --git a/arch/arm/mach-s3c/include/plat/iic-core.h b/arch/arm/mach-s3c/include/plat/iic-core.h new file mode 100644 index 000000000000..c5cfd5af3874 --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/iic-core.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * S3C - I2C Controller core functions + */ + +#ifndef __ASM_ARCH_IIC_CORE_H +#define __ASM_ARCH_IIC_CORE_H __FILE__ + +/* These functions are only for use with the core support code, such as + * the cpu specific initialisation code + */ + +/* re-define device name depending on support. */ +static inline void s3c_i2c0_setname(char *name) +{ + /* currently this device is always compiled in */ + s3c_device_i2c0.name = name; +} + +static inline void s3c_i2c1_setname(char *name) +{ +#ifdef CONFIG_S3C_DEV_I2C1 + s3c_device_i2c1.name = name; +#endif +} + +static inline void s3c_i2c2_setname(char *name) +{ +#ifdef CONFIG_S3C_DEV_I2C2 + s3c_device_i2c2.name = name; +#endif +} + +#endif /* __ASM_ARCH_IIC_H */ diff --git a/arch/arm/mach-s3c/include/plat/keypad.h b/arch/arm/mach-s3c/include/plat/keypad.h new file mode 100644 index 000000000000..9754b9a29945 --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/keypad.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Samsung Platform - Keypad platform data definitions + * + * Copyright (C) 2010 Samsung Electronics Co.Ltd + * Author: Joonyoung Shim <jy0922.shim@samsung.com> + */ + +#ifndef __PLAT_SAMSUNG_KEYPAD_H +#define __PLAT_SAMSUNG_KEYPAD_H + +#include <linux/input/samsung-keypad.h> + +/** + * samsung_keypad_set_platdata - Set platform data for Samsung Keypad device. + * @pd: Platform data to register to device. + * + * Register the given platform data for use with Samsung Keypad device. + * The call will copy the platform data, so the board definitions can + * make the structure itself __initdata. + */ +extern void samsung_keypad_set_platdata(struct samsung_keypad_platdata *pd); + +/* defined by architecture to configure gpio. */ +extern void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols); + +#endif /* __PLAT_SAMSUNG_KEYPAD_H */ diff --git a/arch/arm/mach-s3c/include/plat/map-base.h b/arch/arm/mach-s3c/include/plat/map-base.h new file mode 100644 index 000000000000..34b39ded0e2e --- /dev/null +++ b/arch/arm/mach-s3c/include/plat/map-base.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2003, 2007 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C - Memory map definitions (virtual addresses) + */ + +#ifndef __ASM_PLAT_MAP_H +#define __ASM_PLAT_MAP_H __FILE__ + +/* Fit all our registers in at 0xF6000000 upwards, trying to use as + * little of the VA space as possible so vmalloc and friends have a + * better chance of getting memory. + * + * we try to ensure stuff like the IRQ registers are available for + * an single MOVS instruction (ie, only 8 bits of set data) + */ + +#define S3C_ADDR_BASE 0xF6000000 + +#ifndef __ASSEMBLY__ +#define S3C_ADDR(x) ((void __iomem __force *)S3C_ADDR_BASE + (x)) +#else +#define S3C_ADDR(x) (S3C_ADDR_BASE + (x)) +#endif + +#define S3C_VA_IRQ S3C_ADDR(0x00000000) /* irq controller(s) */ +#define S3C_VA_SYS S3C_ADDR(0x00100000) /* system control */ +#define S3C_VA_MEM S3C_ADDR(0x00200000) /* memory control */ +#define S3C_VA_TIMER S3C_ADDR(0x00300000) /* timer block */ +#define S3C_VA_WATCHDOG S3C_ADDR(0x00400000) /* watchdog */ +#define S3C_VA_UART S3C_ADDR(0x01000000) /* UART */ + +/* This is used for the CPU specific mappings that may be needed, so that + * they do not need to directly used S3C_ADDR() and thus make it easier to + * |