From: Florian Fainelli Date: Mon, 7 Apr 2008 21:49:05 +0000 (+0000) Subject: GPIO code updates, make the cf-mips driver compile against this gpio version X-Git-Tag: reboot~26810 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d835b0e42e2b9bac775c4f30502f522ab9a26f5f;p=openwrt%2Fopenwrt.git GPIO code updates, make the cf-mips driver compile against this gpio version SVN-Revision: 10768 --- diff --git a/target/linux/rb532/files/arch/mips/rb500/gpio.c b/target/linux/rb532/files/arch/mips/rb500/gpio.c index 9e19a63363..f7c417355a 100644 --- a/target/linux/rb532/files/arch/mips/rb500/gpio.c +++ b/target/linux/rb532/files/arch/mips/rb500/gpio.c @@ -39,11 +39,11 @@ #include -#define GPIO_BADDR 0xb8050000 +#define GPIO_BADDR 0x18050000 static volatile unsigned char *devCtl3Base; static unsigned char latchU5State; -static spinlock_t clu5Lock = SPIN_LOCK_UNLOCKED; +static spinlock_t clu5Lock; struct rb500_gpio_reg __iomem *rb500_gpio_reg0; EXPORT_SYMBOL(rb500_gpio_reg0); @@ -73,7 +73,6 @@ void set434Reg(unsigned regOffs, unsigned bit, unsigned len, unsigned val) *(volatile unsigned *) (IDT434_REG_BASE + regOffs) = data; spin_unlock_irqrestore(&clu5Lock, flags); } - EXPORT_SYMBOL(set434Reg); void changeLatchU5(unsigned char orMask, unsigned char nandMask) @@ -89,66 +88,105 @@ void changeLatchU5(unsigned char orMask, unsigned char nandMask) *devCtl3Base = latchU5State; spin_unlock_irqrestore(&clu5Lock, flags); } - EXPORT_SYMBOL(changeLatchU5); unsigned char getLatchU5State(void) { return latchU5State; } - EXPORT_SYMBOL(getLatchU5State); int rb500_gpio_get_value(unsigned gpio) { - u32 reg; - - reg = readl(&rb500_gpio_reg0->gpiod); - return (reg & (1 << gpio)); + return readl(&rb500_gpio_reg0->gpiod) & (1 << gpio); } - EXPORT_SYMBOL(rb500_gpio_get_value); void rb500_gpio_set_value(unsigned gpio, int value) { - u32 reg; + unsigned tmp; - reg = (u32)&rb500_gpio_reg0->gpiod; + tmp = readl(&rb500_gpio_reg0->gpiod) & ~(1 << gpio); + if (value) + tmp |= 1 << gpio; - writel(value, (void *)(reg & (1 << gpio))); + writel(tmp, (void *)&rb500_gpio_reg0->gpiod); } - EXPORT_SYMBOL(rb500_gpio_set_value); int rb500_gpio_direction_input(unsigned gpio) { - u32 reg; - - reg = (u32)&rb500_gpio_reg0->gpiocfg; - writel(0, (void *)(reg & (1 << gpio))); + writel(readl(&rb500_gpio_reg0->gpiocfg) | (1 << gpio), (void *)&rb500_gpio_reg0->gpiocfg); return 0; } - EXPORT_SYMBOL(rb500_gpio_direction_input); int rb500_gpio_direction_output(unsigned gpio, int value) { - u32 reg; + gpio_set_value(gpio, value); + writel(readl(&rb500_gpio_reg0->gpiocfg) & ~(1 << gpio), (void *)&rb500_gpio_reg0->gpiocfg); - reg = (u32)&rb500_gpio_reg0->gpiocfg; + return 0; +} +EXPORT_SYMBOL(rb500_gpio_direction_output); + +void rb500_gpio_set_int_level(unsigned gpio, int value) +{ + unsigned tmp; + + tmp = readl(&rb500_gpio_reg0->gpioilevel) & ~(1 << gpio); if (value) - writel(1, (void *)(reg & (1 << gpio))); + tmp |= 1 << gpio; + writel(tmp, (void *)&rb500_gpio_reg0->gpioilevel); +} +EXPORT_SYMBOL(rb500_gpio_set_int_level); - return 0; +int rb500_gpio_get_int_level(unsigned gpio) +{ + return readl(&rb500_gpio_reg0->gpioilevel) & (1 << gpio); } +EXPORT_SYMBOL(rb500_gpio_get_int_level); -EXPORT_SYMBOL(rb500_gpio_direction_output); +void rb500_gpio_set_int_status(unsigned gpio, int value) +{ + unsigned tmp; + + tmp = readl(&rb500_gpio_reg0->gpioistat); + if (value) + tmp |= 1 << gpio; + writel(tmp, (void *)&rb500_gpio_reg0->gpioistat); +} +EXPORT_SYMBOL(rb500_gpio_set_int_status); + +int rb500_gpio_get_int_status(unsigned gpio) +{ + return readl(&rb500_gpio_reg0->gpioistat) & (1 << gpio); +} +EXPORT_SYMBOL(rb500_gpio_get_int_status); + +void rb500_gpio_set_func(unsigned gpio, int value) +{ + unsigned tmp; + + tmp = readl(&rb500_gpio_reg0->gpiofunc); + if (value) + tmp |= 1 << gpio; + writel(tmp, (void *)&rb500_gpio_reg0->gpiofunc); +} +EXPORT_SYMBOL(rb500_gpio_set_func); + +int rb500_gpio_get_func(unsigned gpio) +{ + return readl(&rb500_gpio_reg0->gpiofunc) & (1 << gpio); +} +EXPORT_SYMBOL(rb500_gpio_get_func); int __init rb500_gpio_init(void) { rb500_gpio_reg0 = ioremap_nocache(rb500_gpio_reg0_res[0].start, - rb500_gpio_reg0_res[0].end - rb500_gpio_reg0_res[0].start); + rb500_gpio_reg0_res[0].end - + rb500_gpio_reg0_res[0].start); if (!rb500_gpio_reg0) { printk(KERN_ERR "rb500: cannot remap GPIO register 0\n"); @@ -157,3 +195,4 @@ int __init rb500_gpio_init(void) return 0; } +arch_initcall(rb500_gpio_init); diff --git a/target/linux/rb532/files/drivers/block/rb500/ata.c b/target/linux/rb532/files/drivers/block/rb500/ata.c index fc5f97b6c8..e4085c27ad 100644 --- a/target/linux/rb532/files/drivers/block/rb500/ata.c +++ b/target/linux/rb532/files/drivers/block/rb500/ata.c @@ -15,6 +15,8 @@ #include #include #include /* request_mem_region() */ + +#include #include /* ioremap() */ #include /* ioremap() */ #include @@ -55,25 +57,15 @@ static inline u8 rareg(unsigned reg, struct cf_mips_dev* dev) return readb(dev->baddr + ATA_REG_OFFSET + reg); } -static inline int get_gpio_bit(gpio_func ofs, struct cf_mips_dev *dev) -{ - return (gpio_get(ofs) >> dev->pin) & 1; -} - -static inline void set_gpio_bit(int bit, gpio_func ofs, struct cf_mips_dev *dev) -{ - gpio_set(ofs, (1 << dev->pin), ((bit & 1) << dev->pin)); -} - static inline int cfrdy(struct cf_mips_dev *dev) { - return get_gpio_bit(DATA, dev); + return gpio_get_value(dev->pin); } static inline void prepare_cf_irq(struct cf_mips_dev *dev) { - set_gpio_bit(1, ILEVEL, dev); /* interrupt on cf ready (not busy) */ - set_gpio_bit(0, ISTAT, dev); /* clear interrupt status */ + rb500_gpio_set_int_level(1, dev->pin); /* interrupt on cf ready (not busy) */ + rb500_gpio_set_int_status(0, dev->pin); /* clear interrupt status */ } static inline int cf_present(struct cf_mips_dev* dev) @@ -85,8 +77,8 @@ static inline int cf_present(struct cf_mips_dev* dev) int i; /* setup CFRDY GPIO as input */ - set_gpio_bit(0, FUNC, dev); - set_gpio_bit(0, CFG, dev); + rb500_gpio_set_func(dev->pin, 0); + gpio_direction_input(dev->pin); for (i = 0; i < 0x10; ++i) { if (rareg(i,dev) != 0xff) @@ -151,9 +143,9 @@ static irqreturn_t cf_irq_handler(int irq, void *dev_id) * To avoid this, we change ILEVEL to 0. */ struct cf_mips_dev *dev=dev_id; - - set_gpio_bit(0, ILEVEL, dev); - set_gpio_bit(0, ISTAT, dev); + + rb500_gpio_set_int_level(0, dev->pin); + rb500_gpio_set_int_status(0, dev->pin); del_timer(&dev->to_timer); tasklet_schedule(&dev->tasklet); @@ -393,7 +385,7 @@ static int do_identify(struct cf_mips_dev *dev) tstr[16]=0; printk(KERN_INFO "cf-mips: %s detected, C/H/S=%d/%d/%d sectors=%u (%uMB) Serial=%s\n", (sbuf[0] == 0x848A ? "CF card" : "ATA drive"), dev->cyl, dev->head, - dev->spt, dev->sectors, dev->sectors >> 11,tstr); + dev->spt, dev->sectors, dev->sectors >> 11, tstr); return 1; } diff --git a/target/linux/rb532/files/drivers/block/rb500/bdev.c b/target/linux/rb532/files/drivers/block/rb500/bdev.c index e4532739b9..f8a9b02d70 100644 --- a/target/linux/rb532/files/drivers/block/rb500/bdev.c +++ b/target/linux/rb532/files/drivers/block/rb500/bdev.c @@ -23,6 +23,7 @@ #include #include +#include #include @@ -242,7 +243,7 @@ static int cf_open(struct inode *inode, struct file *filp) /* dirty workaround to set CFRDY GPIO as an input when some other program sets it as an output */ - gpio_set(CFG, (1 << dev->pin), 0); + gpio_set_value(dev->pin, 0); return 0; /* success */ } diff --git a/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h b/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h index 393259342d..859b9c9219 100644 --- a/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h +++ b/target/linux/rb532/files/include/asm-mips/rc32434/gpio.h @@ -37,132 +37,40 @@ struct rb500_gpio_reg { u32 gpionmien; /* GPIO Non-maskable Interrupt Enable Register */ }; -enum gpio_regs -{ - GPIO_gpio_v = 0, // gpiofunc use pin as GPIO. - GPIO_alt_v = 1, // gpiofunc use pin as alt. - GPIO_input_v = 0, // gpiocfg use pin as input. - GPIO_output_v = 1, // gpiocfg use pin as output. - GPIO_pin0_b = 0, - GPIO_pin0_m = 0x00000001, - GPIO_pin1_b = 1, - GPIO_pin1_m = 0x00000002, - GPIO_pin2_b = 2, - GPIO_pin2_m = 0x00000004, - GPIO_pin3_b = 3, - GPIO_pin3_m = 0x00000008, - GPIO_pin4_b = 4, - GPIO_pin4_m = 0x00000010, - GPIO_pin5_b = 5, - GPIO_pin5_m = 0x00000020, - GPIO_pin6_b = 6, - GPIO_pin6_m = 0x00000040, - GPIO_pin7_b = 7, - GPIO_pin7_m = 0x00000080, - GPIO_pin8_b = 8, - GPIO_pin8_m = 0x00000100, - GPIO_pin9_b = 9, - GPIO_pin9_m = 0x00000200, - GPIO_pin10_b = 10, - GPIO_pin10_m = 0x00000400, - GPIO_pin11_b = 11, - GPIO_pin11_m = 0x00000800, - GPIO_pin12_b = 12, - GPIO_pin12_m = 0x00001000, - GPIO_pin13_b = 13, - GPIO_pin13_m = 0x00002000, - GPIO_pin14_b = 14, - GPIO_pin14_m = 0x00004000, - GPIO_pin15_b = 15, - GPIO_pin15_m = 0x00008000, - GPIO_pin16_b = 16, - GPIO_pin16_m = 0x00010000, - GPIO_pin17_b = 17, - GPIO_pin17_m = 0x00020000, - GPIO_pin18_b = 18, - GPIO_pin18_m = 0x00040000, - GPIO_pin19_b = 19, - GPIO_pin19_m = 0x00080000, - GPIO_pin20_b = 20, - GPIO_pin20_m = 0x00100000, - GPIO_pin21_b = 21, - GPIO_pin21_m = 0x00200000, - GPIO_pin22_b = 22, - GPIO_pin22_m = 0x00400000, - GPIO_pin23_b = 23, - GPIO_pin23_m = 0x00800000, - GPIO_pin24_b = 24, - GPIO_pin24_m = 0x01000000, - GPIO_pin25_b = 25, - GPIO_pin25_m = 0x02000000, - GPIO_pin26_b = 26, - GPIO_pin26_m = 0x04000000, - GPIO_pin27_b = 27, - GPIO_pin27_m = 0x08000000, - GPIO_pin28_b = 28, - GPIO_pin28_m = 0x10000000, - GPIO_pin29_b = 29, - GPIO_pin29_m = 0x20000000, - GPIO_pin30_b = 30, - GPIO_pin30_m = 0x40000000, - GPIO_pin31_b = 31, - GPIO_pin31_m = 0x80000000, - -// Alternate function pins. Corrsponding gpiofunc bit set to GPIO_alt_v. - - GPIO_u0sout_b = GPIO_pin0_b, // UART 0 serial out. - GPIO_u0sout_m = GPIO_pin0_m, - GPIO_u0sout_cfg_v = GPIO_output_v, - GPIO_u0sinp_b = GPIO_pin1_b, // UART 0 serial in. - GPIO_u0sinp_m = GPIO_pin1_m, - GPIO_u0sinp_cfg_v = GPIO_input_v, - GPIO_u0rtsn_b = GPIO_pin2_b, // UART 0 req. to send. - GPIO_u0rtsn_m = GPIO_pin2_m, - GPIO_u0rtsn_cfg_v = GPIO_output_v, - GPIO_u0ctsn_b = GPIO_pin3_b, // UART 0 clear to send. - GPIO_u0ctsn_m = GPIO_pin3_m, - GPIO_u0ctsn_cfg_v = GPIO_input_v, - GPIO_maddr22_b = GPIO_pin4_b, // M&P bus bit 22. - GPIO_maddr22_m = GPIO_pin4_m, - GPIO_maddr22_cfg_v = GPIO_output_v, - - GPIO_maddr23_b = GPIO_pin5_b, // M&P bus bit 23. - GPIO_maddr23_m = GPIO_pin5_m, - GPIO_maddr23_cfg_v = GPIO_output_v, - - GPIO_maddr24_b = GPIO_pin6_b, // M&P bus bit 24. - GPIO_maddr24_m = GPIO_pin6_m, - GPIO_maddr24_cfg_v = GPIO_output_v, - - GPIO_maddr25_b = GPIO_pin7_b, // M&P bus bit 25. - GPIO_maddr25_m = GPIO_pin7_m, - GPIO_maddr25_cfg_v = GPIO_output_v, - - GPIO_cpu_b = GPIO_pin8_b, // M&P bus bit 25. - GPIO_cpu_m = GPIO_pin8_m, - GPIO_cpu_cfg_v = GPIO_output_v, - GPIO_afspare6_b = GPIO_pin9_b, // reserved. - GPIO_afspare6_m = GPIO_pin9_m, - GPIO_afspare6_cfg_v = GPIO_input_v, - GPIO_afspare4_b = GPIO_pin10_b, // reserved. - GPIO_afspare4_m = GPIO_pin10_m, - GPIO_afspare4_cfg_v = GPIO_input_v, - GPIO_afspare3_b = GPIO_pin11_b, // reserved. - GPIO_afspare3_m = GPIO_pin11_m, - GPIO_afspare3_cfg_v = GPIO_input_v, - GPIO_afspare2_b = GPIO_pin12_b, // reserved. - GPIO_afspare2_m = GPIO_pin12_m, - GPIO_afspare2_cfg_v = GPIO_input_v, - GPIO_pcimuintn_b = GPIO_pin13_b, // PCI messaging int. - GPIO_pcimuintn_m = GPIO_pin13_m, - GPIO_pcimuintn_cfg_v = GPIO_output_v, - -}; +/* UART GPIO signals */ +#define RC32434_UART0_SOUT (1 << 0) +#define RC32434_UART0_SIN (1 << 1) +#define RC32434_UART0_RTS (1 << 2) +#define RC32434_UART0_CTS (1 << 3) + +/* M & P bus GPIO signals */ +#define RC32434_MP_BIT_22 (1 << 4) +#define RC32434_MP_BIT_23 (1 << 5) +#define RC32434_MP_BIT_24 (1 << 6) +#define RC32434_MP_BIT_25 (1 << 7) + +/* CPU GPIO signals */ +#define RC32434_CPU_GPIO (1 << 8) + +/* Reserved GPIO signals */ +#define RC32434_AF_SPARE_6 (1 << 9) +#define RC32434_AF_SPARE_4 (1 << 10) +#define RC32434_AF_SPARE_3 (1 << 11) +#define RC32434_AF_SPARE_2 (1 << 12) + +/* PCI messaging unit */ +#define RC32434_PCI_MSU_GPIO (1 << 13) extern int rb500_gpio_get_value(unsigned gpio); extern void rb500_gpio_set_value(unsigned gpio, int value); extern int rb500_gpio_direction_input(unsigned gpio); extern int rb500_gpio_direction_output(unsigned gpio, int value); +extern void rb500_gpio_set_int_level(unsigned gpio, int value); +extern int rb500_gpio_get_int_level(unsigned gpio); +extern void rb500_gpio_set_int_status(unsigned gpio, int value); +extern int rb500_gpio_get_int_status(unsigned gpio); +extern void rb500_gpio_set_func(unsigned gpio, int value); +extern int rb500_gpio_get_func(unsigned gpio); /* Wrappers for the arch-neutral GPIO API */