diff options
Diffstat (limited to 'arch/mips/rb532')
| -rw-r--r-- | arch/mips/rb532/devices.c | 22 | ||||
| -rw-r--r-- | arch/mips/rb532/gpio.c | 238 | ||||
| -rw-r--r-- | arch/mips/rb532/irq.c | 2 | ||||
| -rw-r--r-- | arch/mips/rb532/prom.c | 12 | ||||
| -rw-r--r-- | arch/mips/rb532/serial.c | 6 | ||||
| -rw-r--r-- | arch/mips/rb532/setup.c | 4 |
6 files changed, 177 insertions, 107 deletions
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c index 82ab395efa33..31619c601b11 100644 --- a/arch/mips/rb532/devices.c +++ b/arch/mips/rb532/devices.c @@ -34,21 +34,11 @@ #include <asm/mach-rc32434/rb.h> #include <asm/mach-rc32434/integ.h> #include <asm/mach-rc32434/gpio.h> - -#define ETH0_DMA_RX_IRQ (GROUP1_IRQ_BASE + 0) -#define ETH0_DMA_TX_IRQ (GROUP1_IRQ_BASE + 1) -#define ETH0_RX_OVR_IRQ (GROUP3_IRQ_BASE + 9) -#define ETH0_TX_UND_IRQ (GROUP3_IRQ_BASE + 10) +#include <asm/mach-rc32434/irq.h> #define ETH0_RX_DMA_ADDR (DMA0_BASE_ADDR + 0 * DMA_CHAN_OFFSET) #define ETH0_TX_DMA_ADDR (DMA0_BASE_ADDR + 1 * DMA_CHAN_OFFSET) -/* NAND definitions */ -#define GPIO_RDY (1 << 0x08) -#define GPIO_WPX (1 << 0x09) -#define GPIO_ALE (1 << 0x0a) -#define GPIO_CLE (1 << 0x0b) - static struct resource korina_dev0_res[] = { { .name = "korina_regs", @@ -94,15 +84,13 @@ static struct korina_device korina_dev0_data = { }; static struct platform_device korina_dev0 = { - .id = 0, + .id = -1, .name = "korina", .dev.platform_data = &korina_dev0_data, .resource = korina_dev0_res, .num_resources = ARRAY_SIZE(korina_dev0_res), }; -#define CF_GPIO_NUM 13 - static struct resource cf_slot0_res[] = { { .name = "cf_membase", @@ -116,11 +104,11 @@ static struct resource cf_slot0_res[] = { }; static struct cf_device cf_slot0_data = { - .gpio_pin = 13 + .gpio_pin = CF_GPIO_NUM }; static struct platform_device cf_slot0 = { - .id = 0, + .id = -1, .name = "pata-rb532-cf", .dev.platform_data = &cf_slot0_data, .resource = cf_slot0_res, @@ -185,7 +173,7 @@ static struct mtd_partition rb532_partition_info[] = { static struct platform_device rb532_led = { .name = "rb532-led", - .id = 0, + .id = -1, }; static struct gpio_keys_button rb532_gpio_btn[] = { diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c index 00a1c7877bf4..76a7fd96d564 100644 --- a/arch/mips/rb532/gpio.c +++ b/arch/mips/rb532/gpio.c @@ -27,28 +27,31 @@ */ #include <linux/kernel.h> -#include <linux/gpio.h> #include <linux/init.h> #include <linux/types.h> -#include <linux/pci.h> #include <linux/spinlock.h> -#include <linux/io.h> #include <linux/platform_device.h> - -#include <asm/addrspace.h> +#include <linux/gpio.h> #include <asm/mach-rc32434/rb.h> - -struct rb532_gpio_reg __iomem *rb532_gpio_reg0; -EXPORT_SYMBOL(rb532_gpio_reg0); +#include <asm/mach-rc32434/gpio.h> + +struct rb532_gpio_chip { + struct gpio_chip chip; + void __iomem *regbase; + void (*set_int_level)(struct gpio_chip *chip, unsigned offset, int value); + int (*get_int_level)(struct gpio_chip *chip, unsigned offset); + void (*set_int_status)(struct gpio_chip *chip, unsigned offset, int value); + int (*get_int_status)(struct gpio_chip *chip, unsigned offset); +}; struct mpmc_device dev3; static struct resource rb532_gpio_reg0_res[] = { { .name = "gpio_reg0", - .start = (u32)(IDT434_REG_BASE + GPIOBASE), - .end = (u32)(IDT434_REG_BASE + GPIOBASE + sizeof(struct rb532_gpio_reg)), + .start = REGBASE + GPIOBASE, + .end = REGBASE + GPIOBASE + sizeof(struct rb532_gpio_reg) - 1, .flags = IORESOURCE_MEM, } }; @@ -56,8 +59,8 @@ static struct resource rb532_gpio_reg0_res[] = { static struct resource rb532_dev3_ctl_res[] = { { .name = "dev3_ctl", - .start = (u32)(IDT434_REG_BASE + DEV3BASE), - .end = (u32)(IDT434_REG_BASE + DEV3BASE + sizeof(struct dev_reg)), + .start = REGBASE + DEV3BASE, + .end = REGBASE + DEV3BASE + sizeof(struct dev_reg) - 1, .flags = IORESOURCE_MEM, } }; @@ -70,7 +73,7 @@ void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned val) spin_lock_irqsave(&dev3.lock, flags); - data = *(volatile unsigned *) (IDT434_REG_BASE + reg_offs); + data = readl(IDT434_REG_BASE + reg_offs); for (i = 0; i != len; ++i) { if (val & (1 << i)) data |= (1 << (i + bit)); @@ -108,108 +111,199 @@ unsigned char get_latch_u5(void) } EXPORT_SYMBOL(get_latch_u5); -int rb532_gpio_get_value(unsigned gpio) +/* + * Return GPIO level */ +static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset) { - return readl(&rb532_gpio_reg0->gpiod) & (1 << gpio); + u32 mask = 1 << offset; + struct rb532_gpio_chip *gpch; + + gpch = container_of(chip, struct rb532_gpio_chip, chip); + return readl(gpch->regbase + GPIOD) & mask; } -EXPORT_SYMBOL(rb532_gpio_get_value); -void rb532_gpio_set_value(unsigned gpio, int value) +/* + * Set output GPIO level + */ +static void rb532_gpio_set(struct gpio_chip *chip, + unsigned offset, int value) { - unsigned tmp; + unsigned long flags; + u32 mask = 1 << offset; + u32 tmp; + struct rb532_gpio_chip *gpch; + void __iomem *gpvr; - tmp = readl(&rb532_gpio_reg0->gpiod) & ~(1 << gpio); - if (value) - tmp |= 1 << gpio; + gpch = container_of(chip, struct rb532_gpio_chip, chip); + gpvr = gpch->regbase + GPIOD; - writel(tmp, (void *)&rb532_gpio_reg0->gpiod); + local_irq_save(flags); + tmp = readl(gpvr); + if (value) + tmp |= mask; + else + tmp &= ~mask; + writel(tmp, gpvr); + local_irq_restore(flags); } -EXPORT_SYMBOL(rb532_gpio_set_value); -int rb532_gpio_direction_input(unsigned gpio) +/* + * Set GPIO direction to input + */ +static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { - writel(readl(&rb532_gpio_reg0->gpiocfg) & ~(1 << gpio), - (void *)&rb532_gpio_reg0->gpiocfg); + unsigned long flags; + u32 mask = 1 << offset; + u32 value; + struct rb532_gpio_chip *gpch; + void __iomem *gpdr; - return 0; -} -EXPORT_SYMBOL(rb532_gpio_direction_input); + gpch = container_of(chip, struct rb532_gpio_chip, chip); + gpdr = gpch->regbase + GPIOCFG; -int rb532_gpio_direction_output(unsigned gpio, int value) -{ - gpio_set_value(gpio, value); - writel(readl(&rb532_gpio_reg0->gpiocfg) | (1 << gpio), - (void *)&rb532_gpio_reg0->gpiocfg); + local_irq_save(flags); + value = readl(gpdr); + value &= ~mask; + writel(value, gpdr); + local_irq_restore(flags); return 0; } -EXPORT_SYMBOL(rb532_gpio_direction_output); -void rb532_gpio_set_int_level(unsigned gpio, int value) +/* + * Set GPIO direction to output + */ +static int rb532_gpio_direction_output(struct gpio_chip *chip, + unsigned offset, int value) { - unsigned tmp; + unsigned long flags; + u32 mask = 1 << offset; + u32 tmp; + struct rb532_gpio_chip *gpch; + void __iomem *gpdr; + + gpch = container_of(chip, struct rb532_gpio_chip, chip); + writel(mask, gpch->regbase + GPIOD); + gpdr = gpch->regbase + GPIOCFG; + + local_irq_save(flags); + tmp = readl(gpdr); + tmp |= mask; + writel(tmp, gpdr); + local_irq_restore(flags); - tmp = readl(&rb532_gpio_reg0->gpioilevel) & ~(1 << gpio); - if (value) - tmp |= 1 << gpio; - writel(tmp, (void *)&rb532_gpio_reg0->gpioilevel); + return 0; } -EXPORT_SYMBOL(rb532_gpio_set_int_level); -int rb532_gpio_get_int_level(unsigned gpio) +/* + * Set the GPIO interrupt level + */ +static void rb532_gpio_set_int_level(struct gpio_chip *chip, + unsigned offset, int value) { - return readl(&rb532_gpio_reg0->gpioilevel) & (1 << gpio); -} -EXPORT_SYMBOL(rb532_gpio_get_int_level); + unsigned long flags; + u32 mask = 1 << offset; + u32 tmp; + struct rb532_gpio_chip *gpch; + void __iomem *gpil; -void rb532_gpio_set_int_status(unsigned gpio, int value) -{ - unsigned tmp; + gpch = container_of(chip, struct rb532_gpio_chip, chip); + gpil = gpch->regbase + GPIOILEVEL; - tmp = readl(&rb532_gpio_reg0->gpioistat); + local_irq_save(flags); + tmp = readl(gpil); if (value) - tmp |= 1 << gpio; - writel(tmp, (void *)&rb532_gpio_reg0->gpioistat); + tmp |= mask; + else + tmp &= ~mask; + writel(tmp, gpil); + local_irq_restore(flags); } -EXPORT_SYMBOL(rb532_gpio_set_int_status); -int rb532_gpio_get_int_status(unsigned gpio) +/* + * Get the GPIO interrupt level + */ +static int rb532_gpio_get_int_level(struct gpio_chip *chip, unsigned offset) { - return readl(&rb532_gpio_reg0->gpioistat) & (1 << gpio); + u32 mask = 1 << offset; + struct rb532_gpio_chip *gpch; + + gpch = container_of(chip, struct rb532_gpio_chip, chip); + return readl(gpch->regbase + GPIOILEVEL) & mask; } -EXPORT_SYMBOL(rb532_gpio_get_int_status); -void rb532_gpio_set_func(unsigned gpio, int value) +/* + * Set the GPIO interrupt status + */ +static void rb532_gpio_set_int_status(struct gpio_chip *chip, + unsigned offset, int value) { - unsigned tmp; + unsigned long flags; + u32 mask = 1 << offset; + u32 tmp; + struct rb532_gpio_chip *gpch; + void __iomem *gpis; + + gpch = container_of(chip, struct rb532_gpio_chip, chip); + gpis = gpch->regbase + GPIOISTAT; - tmp = readl(&rb532_gpio_reg0->gpiofunc); + local_irq_save(flags); + tmp = readl(gpis); if (value) - tmp |= 1 << gpio; - writel(tmp, (void *)&rb532_gpio_reg0->gpiofunc); + tmp |= mask; + else + tmp &= ~mask; + writel(tmp, gpis); + local_irq_restore(flags); } -EXPORT_SYMBOL(rb532_gpio_set_func); -int rb532_gpio_get_func(unsigned gpio) +/* + * Get the GPIO interrupt status + */ +static int rb532_gpio_get_int_status(struct gpio_chip *chip, unsigned offset) { - return readl(&rb532_gpio_reg0->gpiofunc) & (1 << gpio); + u32 mask = 1 << offset; + struct rb532_gpio_chip *gpch; + + gpch = container_of(chip, struct rb532_gpio_chip, chip); + return readl(gpch->regbase + GPIOISTAT) & mask; } -EXPORT_SYMBOL(rb532_gpio_get_func); + +static struct rb532_gpio_chip rb532_gpio_chip[] = { + [0] = { + .chip = { + .label = "gpio0", + .direction_input = rb532_gpio_direction_input, + .direction_output = rb532_gpio_direction_output, + .get = rb532_gpio_get, + .set = rb532_gpio_set, + .base = 0, + .ngpio = 32, + }, + .get_int_level = rb532_gpio_get_int_level, + .set_int_level = rb532_gpio_set_int_level, + .get_int_status = rb532_gpio_get_int_status, + .set_int_status = rb532_gpio_set_int_status, + }, +}; int __init rb532_gpio_init(void) { - rb532_gpio_reg0 = ioremap_nocache(rb532_gpio_reg0_res[0].start, - rb532_gpio_reg0_res[0].end - - rb532_gpio_reg0_res[0].start); + struct resource *r; - if (!rb532_gpio_reg0) { + r = rb532_gpio_reg0_res; + rb532_gpio_chip->regbase = ioremap_nocache(r->start, r->end - r->start); + + if (!rb532_gpio_chip->regbase) { printk(KERN_ERR "rb532: cannot remap GPIO register 0\n"); return -ENXIO; } - dev3.base = ioremap_nocache(rb532_dev3_ctl_res[0].start, - rb532_dev3_ctl_res[0].end - - rb532_dev3_ctl_res[0].start); + /* Register our GPIO chip */ + gpiochip_add(&rb532_gpio_chip->chip); + + r = rb532_dev3_ctl_res; + dev3.base = ioremap_nocache(r->start, r->end - r->start); if (!dev3.base) { printk(KERN_ERR "rb532: cannot remap device controller 3\n"); diff --git a/arch/mips/rb532/irq.c b/arch/mips/rb532/irq.c index c0d0f950caf2..549b46d2fcee 100644 --- a/arch/mips/rb532/irq.c +++ b/arch/mips/rb532/irq.c @@ -45,7 +45,7 @@ #include <asm/mipsregs.h> #include <asm/system.h> -#include <asm/mach-rc32434/rc32434.h> +#include <asm/mach-rc32434/irq.h> struct intr_group { u32 mask; /* mask of valid bits in pending/mask registers */ diff --git a/arch/mips/rb532/prom.c b/arch/mips/rb532/prom.c index 1bc0af8febf4..46ca24dbcc2d 100644 --- a/arch/mips/rb532/prom.c +++ b/arch/mips/rb532/prom.c @@ -37,12 +37,8 @@ #include <asm/mach-rc32434/ddr.h> #include <asm/mach-rc32434/prom.h> -extern void __init setup_serial_port(void); - unsigned int idt_cpu_freq = 132000000; EXPORT_SYMBOL(idt_cpu_freq); -unsigned int gpio_bootup_state; -EXPORT_SYMBOL(gpio_bootup_state); static struct resource ddr_reg[] = { { @@ -108,9 +104,6 @@ void __init prom_setup_cmdline(void) mips_machtype = MACH_MIKROTIK_RB532; } - if (match_tag(prom_argv[i], GPIO_TAG)) - gpio_bootup_state = tag2ul(prom_argv[i], GPIO_TAG); - strcpy(cp, prom_argv[i]); cp += strlen(prom_argv[i]); } @@ -122,11 +115,6 @@ void __init prom_setup_cmdline(void) strcpy(cp, arcs_cmdline); cp += strlen(arcs_cmdline); } - if (gpio_bootup_state & 0x02) - strcpy(cp, GPIO_INIT_NOBUTTON); - else - strcpy(cp, GPIO_INIT_BUTTON); - cmd_line[CL_SIZE-1] = '\0'; strcpy(arcs_cmdline, cmd_line); diff --git a/arch/mips/rb532/serial.c b/arch/mips/rb532/serial.c index 1a05b5ddee09..3e0d7ec3a579 100644 --- a/arch/mips/rb532/serial.c +++ b/arch/mips/rb532/serial.c @@ -31,16 +31,16 @@ #include <linux/serial_8250.h> #include <asm/serial.h> -#include <asm/mach-rc32434/rc32434.h> +#include <asm/mach-rc32434/rb.h> extern unsigned int idt_cpu_freq; static struct uart_port rb532_uart = { .type = PORT_16550A, .line = 0, - .irq = RC32434_UART0_IRQ, + .irq = UART0_IRQ, .iotype = UPIO_MEM, - .membase = (char *)KSEG1ADDR(RC32434_UART0_BASE), + .membase = (char *)KSEG1ADDR(REGBASE + UART0BASE), .regshift = 2 }; diff --git a/arch/mips/rb532/setup.c b/arch/mips/rb532/setup.c index 7aafa95ac20b..50f530f5b602 100644 --- a/arch/mips/rb532/setup.c +++ b/arch/mips/rb532/setup.c @@ -9,7 +9,7 @@ #include <asm/time.h> #include <linux/ioport.h> -#include <asm/mach-rc32434/rc32434.h> +#include <asm/mach-rc32434/rb.h> #include <asm/mach-rc32434/pci.h> struct pci_reg __iomem *pci_reg; @@ -27,7 +27,7 @@ static struct resource pci0_res[] = { static void rb_machine_restart(char *command) { /* just jump to the reset vector */ - writel(0x80000001, (void *)KSEG1ADDR(RC32434_REG_BASE + RC32434_RST)); + writel(0x80000001, IDT434_REG_BASE + RST); ((void (*)(void)) KSEG1ADDR(0x1FC00000u))(); } |