diff options
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/cpu/Makefile | 2 | ||||
| -rw-r--r-- | arch/blackfin/cpu/gpio.c | 145 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/gpio.h | 62 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/portmux.h | 5 |
4 files changed, 31 insertions, 183 deletions
diff --git a/arch/blackfin/cpu/Makefile b/arch/blackfin/cpu/Makefile index 929fc8b..1421cb2 100644 --- a/arch/blackfin/cpu/Makefile +++ b/arch/blackfin/cpu/Makefile @@ -18,7 +18,7 @@ CEXTRA := initcode.o SEXTRA := start.o SOBJS := interrupt.o cache.o COBJS-y += cpu.o -COBJS-y += gpio.o +COBJS-$(CONFIG_ADI_GPIO1) += gpio.o COBJS-y += interrupts.o COBJS-$(CONFIG_JTAG_CONSOLE) += jtag-console.o COBJS-y += os_log.o diff --git a/arch/blackfin/cpu/gpio.c b/arch/blackfin/cpu/gpio.c index f684be5..f74a0b7 100644 --- a/arch/blackfin/cpu/gpio.c +++ b/arch/blackfin/cpu/gpio.c @@ -1,5 +1,6 @@ /* - * GPIO Abstraction Layer + * ADI GPIO1 Abstraction Layer + * Support BF50x, BF51x, BF52x, BF53x and BF561 only. * * Copyright 2006-2010 Analog Devices Inc. * @@ -55,25 +56,6 @@ static struct gpio_port_t * const gpio_array[] = { (struct gpio_port_t *) FIO0_FLAG_D, (struct gpio_port_t *) FIO1_FLAG_D, (struct gpio_port_t *) FIO2_FLAG_D, -#elif defined(CONFIG_BF54x) - (struct gpio_port_t *)PORTA_FER, - (struct gpio_port_t *)PORTB_FER, - (struct gpio_port_t *)PORTC_FER, - (struct gpio_port_t *)PORTD_FER, - (struct gpio_port_t *)PORTE_FER, - (struct gpio_port_t *)PORTF_FER, - (struct gpio_port_t *)PORTG_FER, - (struct gpio_port_t *)PORTH_FER, - (struct gpio_port_t *)PORTI_FER, - (struct gpio_port_t *)PORTJ_FER, -#elif defined(CONFIG_BF60x) - (struct gpio_port_t *)PORTA_FER, - (struct gpio_port_t *)PORTB_FER, - (struct gpio_port_t *)PORTC_FER, - (struct gpio_port_t *)PORTD_FER, - (struct gpio_port_t *)PORTE_FER, - (struct gpio_port_t *)PORTF_FER, - (struct gpio_port_t *)PORTG_FER, #else # error no gpio arrays defined #endif @@ -174,12 +156,6 @@ DECLARE_RESERVED_MAP(peri, gpio_bank(MAX_RESOURCES)); inline int check_gpio(unsigned gpio) { -#if defined(CONFIG_BF54x) - if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15 - || gpio == GPIO_PH14 || gpio == GPIO_PH15 - || gpio == GPIO_PJ14 || gpio == GPIO_PJ15) - return -EINVAL; -#endif if (gpio >= MAX_BLACKFIN_GPIOS) return -EINVAL; return 0; @@ -218,18 +194,6 @@ static void port_setup(unsigned gpio, unsigned short usage) else *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio); SSYNC(); -#elif defined(CONFIG_BF54x) - if (usage == GPIO_USAGE) - gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio); - else - gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio); - SSYNC(); -#elif defined(CONFIG_BF60x) - if (usage == GPIO_USAGE) - gpio_array[gpio_bank(gpio)]->port_fer_clear = gpio_bit(gpio); - else - gpio_array[gpio_bank(gpio)]->port_fer_set = gpio_bit(gpio); - SSYNC(); #endif } @@ -304,30 +268,6 @@ static void portmux_setup(unsigned short per) } } } -#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x) -inline void portmux_setup(unsigned short per) -{ - u32 pmux; - u16 ident = P_IDENT(per); - u16 function = P_FUNCT2MUX(per); - - pmux = gpio_array[gpio_bank(ident)]->port_mux; - - pmux &= ~(0x3 << (2 * gpio_sub_n(ident))); - pmux |= (function & 0x3) << (2 * gpio_sub_n(ident)); - - gpio_array[gpio_bank(ident)]->port_mux = pmux; -} - -inline u16 get_portmux(unsigned short per) -{ - u32 pmux; - u16 ident = P_IDENT(per); - - pmux = gpio_array[gpio_bank(ident)]->port_mux; - - return (pmux >> (2 * gpio_sub_n(ident)) & 0x3); -} #elif defined(CONFIG_BF52x) || defined(CONFIG_BF51x) inline void portmux_setup(unsigned short per) { @@ -344,7 +284,6 @@ inline void portmux_setup(unsigned short per) # define portmux_setup(...) do { } while (0) #endif -#if !defined(CONFIG_BF54x) && !defined(CONFIG_BF60x) /*********************************************************** * * FUNCTIONS: Blackfin General Purpose Ports Access Functions @@ -491,15 +430,6 @@ GET_GPIO_P(both) GET_GPIO_P(maska) GET_GPIO_P(maskb) -#else /* CONFIG_BF54x */ - -unsigned short get_gpio_dir(unsigned gpio) -{ - return (0x01 & (gpio_array[gpio_bank(gpio)]->dir_clear >> gpio_sub_n(gpio))); -} - -#endif /* CONFIG_BF54x */ - /*********************************************************** * * FUNCTIONS: Blackfin Peripheral Resource Allocation @@ -548,11 +478,7 @@ int peripheral_request(unsigned short per, const char *label) * be requested and used by several drivers */ -#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x) - if (!((per & P_MAYSHARE) && get_portmux(per) == P_FUNCT2MUX(per))) { -#else if (!(per & P_MAYSHARE)) { -#endif /* * Allow that the identical pin function can * be requested from the same driver twice @@ -641,7 +567,7 @@ void peripheral_free_list(const unsigned short per[]) * MODIFICATION HISTORY : **************************************************************/ -int bfin_gpio_request(unsigned gpio, const char *label) +int gpio_request(unsigned gpio, const char *label) { if (check_gpio(gpio) < 0) return -EINVAL; @@ -665,11 +591,9 @@ int bfin_gpio_request(unsigned gpio, const char *label) gpio, get_label(gpio)); return -EBUSY; } -#if !defined(CONFIG_BF54x) && !defined(CONFIG_BF60x) else { /* Reset POLAR setting when acquiring a gpio for the first time */ set_gpio_polar(gpio, 0); } -#endif reserve(gpio, gpio); set_label(gpio, label); @@ -679,27 +603,27 @@ int bfin_gpio_request(unsigned gpio, const char *label) return 0; } -#ifdef CONFIG_BFIN_GPIO_TRACK -void bfin_gpio_free(unsigned gpio) +int gpio_free(unsigned gpio) { if (check_gpio(gpio) < 0) - return; + return -1; if (unlikely(!is_reserved(gpio, gpio, 0))) { gpio_error(gpio); - return; + return -1; } unreserve(gpio, gpio); set_label(gpio, "free"); + + return 0; } -#endif -#ifdef BFIN_SPECIAL_GPIO_BANKS +#ifdef ADI_SPECIAL_GPIO_BANKS DECLARE_RESERVED_MAP(special_gpio, gpio_bank(MAX_RESOURCES)); -int bfin_special_gpio_request(unsigned gpio, const char *label) +int special_gpio_request(unsigned gpio, const char *label) { /* * Allow that the identical GPIO can @@ -731,7 +655,7 @@ int bfin_special_gpio_request(unsigned gpio, const char *label) return 0; } -void bfin_special_gpio_free(unsigned gpio) +void special_gpio_free(unsigned gpio) { if (unlikely(!is_reserved(special_gpio, gpio, 0))) { gpio_error(gpio); @@ -744,21 +668,13 @@ void bfin_special_gpio_free(unsigned gpio) } #endif -static inline void __bfin_gpio_direction_input(unsigned gpio) +static inline void __gpio_direction_input(unsigned gpio) { -#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x) - gpio_array[gpio_bank(gpio)]->dir_clear = gpio_bit(gpio); -#else gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio); -#endif -#if defined(CONFIG_BF60x) - gpio_array[gpio_bank(gpio)]->inen_set = gpio_bit(gpio); -#else gpio_array[gpio_bank(gpio)]->inen |= gpio_bit(gpio); -#endif } -int bfin_gpio_direction_input(unsigned gpio) +int gpio_direction_input(unsigned gpio) { unsigned long flags; @@ -768,31 +684,24 @@ int bfin_gpio_direction_input(unsigned gpio) } local_irq_save(flags); - __bfin_gpio_direction_input(gpio); + __gpio_direction_input(gpio); AWA_DUMMY_READ(inen); local_irq_restore(flags); return 0; } -void bfin_gpio_toggle_value(unsigned gpio) -{ -#ifdef CONFIG_BF54x - gpio_set_value(gpio, !gpio_get_value(gpio)); -#else - gpio_array[gpio_bank(gpio)]->toggle = gpio_bit(gpio); -#endif -} - -void bfin_gpio_set_value(unsigned gpio, int arg) +int gpio_set_value(unsigned gpio, int arg) { if (arg) gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio); else gpio_array[gpio_bank(gpio)]->data_clear = gpio_bit(gpio); + + return 0; } -int bfin_gpio_direction_output(unsigned gpio, int value) +int gpio_direction_output(unsigned gpio, int value) { unsigned long flags; @@ -803,17 +712,9 @@ int bfin_gpio_direction_output(unsigned gpio, int value) local_irq_save(flags); -#if defined(CONFIG_BF60x) - gpio_array[gpio_bank(gpio)]->inen_clear = gpio_bit(gpio); -#else gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio); -#endif gpio_set_value(gpio, value); -#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x) - gpio_array[gpio_bank(gpio)]->dir_set = gpio_bit(gpio); -#else gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio); -#endif AWA_DUMMY_READ(dir); local_irq_restore(flags); @@ -821,11 +722,8 @@ int bfin_gpio_direction_output(unsigned gpio, int value) return 0; } -int bfin_gpio_get_value(unsigned gpio) +int gpio_get_value(unsigned gpio) { -#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x) - return (1 & (gpio_array[gpio_bank(gpio)]->data >> gpio_sub_n(gpio))); -#else unsigned long flags; if (unlikely(get_gpio_edge(gpio))) { @@ -838,7 +736,6 @@ int bfin_gpio_get_value(unsigned gpio) return ret; } else return get_gpio_data(gpio); -#endif } /* If we are booting from SPI and our board lacks a strong enough pull up, @@ -860,8 +757,7 @@ void bfin_reset_boot_spi_cs(unsigned short pin) udelay(1); } -#ifdef CONFIG_BFIN_GPIO_TRACK -void bfin_gpio_labels(void) +void gpio_labels(void) { int c, gpio; @@ -877,4 +773,3 @@ void bfin_gpio_labels(void) continue; } } -#endif diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h index 05131b5..58a6191 100644 --- a/arch/blackfin/include/asm/gpio.h +++ b/arch/blackfin/include/asm/gpio.h @@ -7,6 +7,8 @@ #ifndef __ARCH_BLACKFIN_GPIO_H__ #define __ARCH_BLACKFIN_GPIO_H__ +#include <asm-generic/gpio.h> + #define gpio_bank(x) ((x) >> 4) #define gpio_bit(x) (1<<((x) & 0xF)) #define gpio_sub_n(x) ((x) & 0xF) @@ -65,10 +67,11 @@ #define PERIPHERAL_USAGE 1 #define GPIO_USAGE 0 +#define MAX_GPIOS MAX_BLACKFIN_GPIOS #ifndef __ASSEMBLY__ -#if !defined(CONFIG_BF54x) && !defined(CONFIG_BF60x) +#ifdef CONFIG_ADI_GPIO1 void set_gpio_dir(unsigned, unsigned short); void set_gpio_inen(unsigned, unsigned short); void set_gpio_polar(unsigned, unsigned short); @@ -140,61 +143,16 @@ struct gpio_port_t { }; #endif -#ifdef CONFIG_BFIN_GPIO_TRACK -void bfin_gpio_labels(void); -void bfin_gpio_free(unsigned gpio); -#else -#define bfin_gpio_labels() -#define bfin_gpio_free(gpio) -#define bfin_gpio_request(gpio, label) bfin_gpio_request(gpio) -#define bfin_special_gpio_request(gpio, label) bfin_special_gpio_request(gpio) -#endif - -#ifdef BFIN_SPECIAL_GPIO_BANKS -void bfin_special_gpio_free(unsigned gpio); -int bfin_special_gpio_request(unsigned gpio, const char *label); +#ifdef ADI_SPECIAL_GPIO_BANKS +void special_gpio_free(unsigned gpio); +int special_gpio_request(unsigned gpio, const char *label); #endif -int bfin_gpio_request(unsigned gpio, const char *label); -int bfin_gpio_direction_input(unsigned gpio); -int bfin_gpio_direction_output(unsigned gpio, int value); -int bfin_gpio_get_value(unsigned gpio); -void bfin_gpio_set_value(unsigned gpio, int value); -void bfin_gpio_toggle_value(unsigned gpio); - -static inline int gpio_request(unsigned gpio, const char *label) -{ - return bfin_gpio_request(gpio, label); -} - -static inline void gpio_free(unsigned gpio) -{ - return bfin_gpio_free(gpio); -} - -static inline int gpio_direction_input(unsigned gpio) -{ - return bfin_gpio_direction_input(gpio); -} - -static inline int gpio_direction_output(unsigned gpio, int value) -{ - return bfin_gpio_direction_output(gpio, value); -} - -static inline int gpio_get_value(unsigned gpio) -{ - return bfin_gpio_get_value(gpio); -} - -static inline void gpio_set_value(unsigned gpio, int value) -{ - return bfin_gpio_set_value(gpio, value); -} +void gpio_labels(void); static inline int gpio_is_valid(int number) { - return number >= 0 && number < MAX_BLACKFIN_GPIOS; + return number >= 0 && number < MAX_GPIOS; } #include <linux/ctype.h> @@ -248,7 +206,7 @@ static inline int name_to_gpio(const char *name) } #define name_to_gpio(n) name_to_gpio(n) -#define gpio_status() bfin_gpio_labels() +#define gpio_status() gpio_labels() #endif /* __ASSEMBLY__ */ diff --git a/arch/blackfin/include/asm/portmux.h b/arch/blackfin/include/asm/portmux.h index 300ef44..003694b 100644 --- a/arch/blackfin/include/asm/portmux.h +++ b/arch/blackfin/include/asm/portmux.h @@ -17,11 +17,6 @@ #define P_MAYSHARE 0x2000 #define P_DONTCARE 0x1000 -#ifndef CONFIG_BFIN_GPIO_TRACK -#define peripheral_request(per, label) peripheral_request(per) -#define peripheral_request_list(per, label) peripheral_request_list(per) -#endif - #ifndef __ASSEMBLY__ int peripheral_request(unsigned short per, const char *label); 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