diff options
author | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
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committer | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
commit | b21a207141d83a06abc5f492b80204602e02ca44 (patch) | |
tree | f0152cde543008c72d7eb5c12c18095ad92785e6 /arch/arm/mach-orion5x | |
parent | 3af373021fa32f8f787bfbdcc1a9277a287bde4e (diff) | |
parent | b58602a4bac012b5f4fc12fe6b46ab237b610d5d (diff) | |
download | linux-b21a207141d83a06abc5f492b80204602e02ca44.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Conflicts:
drivers/uwb/wlp/eda.c
Diffstat (limited to 'arch/arm/mach-orion5x')
-rw-r--r-- | arch/arm/mach-orion5x/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/common.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/common.h | 7 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/dns323-setup.c | 174 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/gpio.c | 231 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/include/mach/dma.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/include/mach/gpio.h | 29 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/include/mach/io.h | 7 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/include/mach/irqs.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/include/mach/memory.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/include/mach/orion5x.h | 9 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/irq.c | 183 | ||||
-rw-r--r-- | arch/arm/mach-orion5x/mpp.c | 6 |
13 files changed, 197 insertions, 461 deletions
diff --git a/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile index 3d4a1bc12355..edc38e2c856f 100644 --- a/arch/arm/mach-orion5x/Makefile +++ b/arch/arm/mach-orion5x/Makefile @@ -1,4 +1,4 @@ -obj-y += common.o addr-map.o pci.o gpio.o irq.o mpp.o +obj-y += common.o addr-map.o pci.o irq.o mpp.o obj-$(CONFIG_MACH_DB88F5281) += db88f5281-setup.o obj-$(CONFIG_MACH_RD88F5182) += rd88f5182-setup.o obj-$(CONFIG_MACH_KUROBOX_PRO) += kurobox_pro-setup.o diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index 437065c25c9c..0a623379789f 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -72,6 +72,7 @@ void __init orion5x_map_io(void) ****************************************************************************/ static struct orion_ehci_data orion5x_ehci_data = { .dram = &orion5x_mbus_dram_info, + .phy_version = EHCI_PHY_ORION, }; static u64 ehci_dmamask = 0xffffffffUL; diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h index a000c7c6ee96..798b9a5e3da9 100644 --- a/arch/arm/mach-orion5x/common.h +++ b/arch/arm/mach-orion5x/common.h @@ -51,13 +51,6 @@ int orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys); struct pci_bus *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys); int orion5x_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin); -/* - * Valid GPIO pins according to MPP setup, used by machine-setup. - * (/mach-orion/gpio.c). - */ -void orion5x_gpio_set_valid(unsigned pin, int valid); -void gpio_display(void); /* debug */ - struct machine_desc; struct meminfo; struct tag; diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c index 3e66098340a5..0722d6510df1 100644 --- a/arch/arm/mach-orion5x/dns323-setup.c +++ b/arch/arm/mach-orion5x/dns323-setup.c @@ -21,6 +21,7 @@ #include <linux/gpio_keys.h> #include <linux/input.h> #include <linux/i2c.h> +#include <linux/ata_platform.h> #include <asm/mach-types.h> #include <asm/gpio.h> #include <asm/mach/arch.h> @@ -64,9 +65,21 @@ static struct hw_pci dns323_pci __initdata = { .map_irq = dns323_pci_map_irq, }; +static int __init dns323_dev_id(void) +{ + u32 dev, rev; + + orion5x_pcie_id(&dev, &rev); + + return dev; +} + static int __init dns323_pci_init(void) { - if (machine_is_dns323()) + /* The 5182 doesn't really use it's PCI bus, and initialising PCI + * gets in the way of initialising the SATA controller. + */ + if (machine_is_dns323() && dns323_dev_id() != MV88F5182_DEV_ID) pci_common_init(&dns323_pci); return 0; @@ -75,14 +88,6 @@ static int __init dns323_pci_init(void) subsys_initcall(dns323_pci_init); /**************************************************************************** - * Ethernet - */ - -static struct mv643xx_eth_platform_data dns323_eth_data = { - .phy_addr = MV643XX_ETH_PHY_ADDR(8), -}; - -/**************************************************************************** * 8MiB NOR flash (Spansion S29GL064M90TFIR4) * * Layout as used by D-Link: @@ -143,6 +148,90 @@ static struct platform_device dns323_nor_flash = { }; /**************************************************************************** + * Ethernet + */ + +static struct mv643xx_eth_platform_data dns323_eth_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(8), +}; + +/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these + * functions be kept somewhere? + */ +static int __init dns323_parse_hex_nibble(char n) +{ + if (n >= '0' && n <= '9') + return n - '0'; + + if (n >= 'A' && n <= 'F') + return n - 'A' + 10; + + if (n >= 'a' && n <= 'f') + return n - 'a' + 10; + + return -1; +} + +static int __init dns323_parse_hex_byte(const char *b) +{ + int hi; + int lo; + + hi = dns323_parse_hex_nibble(b[0]); + lo = dns323_parse_hex_nibble(b[1]); + + if (hi < 0 || lo < 0) + return -1; + + return (hi << 4) | lo; +} + +static int __init dns323_read_mac_addr(void) +{ + u_int8_t addr[6]; + int i; + char *mac_page; + + /* MAC address is stored as a regular ol' string in /dev/mtdblock4 + * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80). + */ + mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024); + if (!mac_page) + return -ENOMEM; + + /* Sanity check the string we're looking at */ + for (i = 0; i < 5; i++) { + if (*(mac_page + (i * 3) + 2) != ':') { + goto error_fail; + } + } + + for (i = 0; i < 6; i++) { + int byte; + + byte = dns323_parse_hex_byte(mac_page + (i * 3)); + if (byte < 0) { + goto error_fail; + } + + addr[i] = byte; + } + + iounmap(mac_page); + printk("DNS323: Found ethernet MAC address: "); + for (i = 0; i < 6; i++) + printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n"); + + memcpy(dns323_eth_data.mac_addr, addr, 6); + + return 0; + +error_fail: + iounmap(mac_page); + return -EINVAL; +} + +/**************************************************************************** * GPIO LEDs (simple - doesn't use hardware blinking support) */ @@ -207,10 +296,17 @@ static struct platform_device dns323_button_device = { }, }; +/***************************************************************************** + * SATA + */ +static struct mv_sata_platform_data dns323_sata_data = { + .n_ports = 2, +}; + /**************************************************************************** * General Setup */ -static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = { +static struct orion5x_mpp_mode dns323_mv88f5181_mpp_modes[] __initdata = { { 0, MPP_PCIE_RST_OUTn }, { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ @@ -234,6 +330,30 @@ static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = { { -1 }, }; +static struct orion5x_mpp_mode dns323_mv88f5182_mpp_modes[] __initdata = { + { 0, MPP_UNUSED }, + { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ + { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ + { 3, MPP_UNUSED }, + { 4, MPP_GPIO }, /* power button LED */ + { 5, MPP_GPIO }, /* power button LED */ + { 6, MPP_GPIO }, /* GMT G751-2f overtemp */ + { 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */ + { 8, MPP_GPIO }, /* triggers power off */ + { 9, MPP_GPIO }, /* power button switch */ + { 10, MPP_GPIO }, /* reset button switch */ + { 11, MPP_UNUSED }, + { 12, MPP_SATA_LED }, + { 13, MPP_SATA_LED }, + { 14, MPP_SATA_LED }, + { 15, MPP_SATA_LED }, + { 16, MPP_UNUSED }, + { 17, MPP_UNUSED }, + { 18, MPP_UNUSED }, + { 19, MPP_UNUSED }, + { -1 }, +}; + /* * On the DNS-323 the following devices are attached via I2C: * @@ -264,16 +384,15 @@ static void __init dns323_init(void) /* Setup basic Orion functions. Need to be called early. */ orion5x_init(); - orion5x_mpp_conf(dns323_mpp_modes); - writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */ - - /* - * Configure peripherals. + /* Just to be tricky, the 5182 has a completely different + * set of MPP modes to the 5181. */ - orion5x_ehci0_init(); - orion5x_eth_init(&dns323_eth_data); - orion5x_i2c_init(); - orion5x_uart0_init(); + if (dns323_dev_id() == MV88F5182_DEV_ID) + orion5x_mpp_conf(dns323_mv88f5182_mpp_modes); + else { + orion5x_mpp_conf(dns323_mv88f5181_mpp_modes); + writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */ + } /* setup flash mapping * CS3 holds a 8 MB Spansion S29GL064M90TFIR4 @@ -288,6 +407,23 @@ static void __init dns323_init(void) i2c_register_board_info(0, dns323_i2c_devices, ARRAY_SIZE(dns323_i2c_devices)); + /* + * Configure peripherals. + */ + if (dns323_read_mac_addr() < 0) + printk("DNS323: Failed to read MAC address\n"); + + orion5x_ehci0_init(); + orion5x_eth_init(&dns323_eth_data); + orion5x_i2c_init(); + orion5x_uart0_init(); + + /* The 5182 has it's SATA controller on-chip, and needs it's own little + * init routine. + */ + if (dns323_dev_id() == MV88F5182_DEV_ID) + orion5x_sata_init(&dns323_sata_data); + /* register dns323 specific power-off method */ if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) diff --git a/arch/arm/mach-orion5x/gpio.c b/arch/arm/mach-orion5x/gpio.c deleted file mode 100644 index f99d08811e5a..000000000000 --- a/arch/arm/mach-orion5x/gpio.c +++ /dev/null @@ -1,231 +0,0 @@ -/* - * arch/arm/mach-orion5x/gpio.c - * - * GPIO functions for Marvell Orion System On Chip - * - * Maintainer: Tzachi Perelstein <tzachi@marvell.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/spinlock.h> -#include <linux/bitops.h> -#include <linux/io.h> -#include <asm/gpio.h> -#include <mach/orion5x.h> -#include "common.h" - -static DEFINE_SPINLOCK(gpio_lock); -static unsigned long gpio_valid[BITS_TO_LONGS(GPIO_MAX)]; -static const char *gpio_label[GPIO_MAX]; /* non null for allocated GPIOs */ - -void __init orion5x_gpio_set_valid(unsigned pin, int valid) -{ - if (valid) - __set_bit(pin, gpio_valid); - else - __clear_bit(pin, gpio_valid); -} - -/* - * GENERIC_GPIO primitives - */ -int gpio_direction_input(unsigned pin) -{ - unsigned long flags; - - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __func__, pin); - return -EINVAL; - } - - spin_lock_irqsave(&gpio_lock, flags); - - /* - * Some callers might have not used the gpio_request(), - * so flag this pin as requested now. - */ - if (!gpio_label[pin]) - gpio_label[pin] = "?"; - - orion5x_setbits(GPIO_IO_CONF, 1 << pin); - - spin_unlock_irqrestore(&gpio_lock, flags); - return 0; -} -EXPORT_SYMBOL(gpio_direction_input); - -int gpio_direction_output(unsigned pin, int value) -{ - unsigned long flags; - int mask; - - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __func__, pin); - return -EINVAL; - } - - spin_lock_irqsave(&gpio_lock, flags); - - /* - * Some callers might have not used the gpio_request(), - * so flag this pin as requested now. - */ - if (!gpio_label[pin]) - gpio_label[pin] = "?"; - - mask = 1 << pin; - orion5x_clrbits(GPIO_BLINK_EN, mask); - if (value) - orion5x_setbits(GPIO_OUT, mask); - else - orion5x_clrbits(GPIO_OUT, mask); - orion5x_clrbits(GPIO_IO_CONF, mask); - - spin_unlock_irqrestore(&gpio_lock, flags); - return 0; -} -EXPORT_SYMBOL(gpio_direction_output); - -int gpio_get_value(unsigned pin) -{ - int val, mask = 1 << pin; - - if (readl(GPIO_IO_CONF) & mask) - val = readl(GPIO_DATA_IN) ^ readl(GPIO_IN_POL); - else - val = readl(GPIO_OUT); - - return val & mask; -} -EXPORT_SYMBOL(gpio_get_value); - -void gpio_set_value(unsigned pin, int value) -{ - unsigned long flags; - int mask = 1 << pin; - - spin_lock_irqsave(&gpio_lock, flags); - - orion5x_clrbits(GPIO_BLINK_EN, mask); - if (value) - orion5x_setbits(GPIO_OUT, mask); - else - orion5x_clrbits(GPIO_OUT, mask); - - spin_unlock_irqrestore(&gpio_lock, flags); -} -EXPORT_SYMBOL(gpio_set_value); - -void orion5x_gpio_set_blink(unsigned pin, int blink) -{ - unsigned long flags; - int mask = 1 << pin; - - spin_lock_irqsave(&gpio_lock, flags); - - orion5x_clrbits(GPIO_OUT, mask); - if (blink) - orion5x_setbits(GPIO_BLINK_EN, mask); - else - orion5x_clrbits(GPIO_BLINK_EN, mask); - - spin_unlock_irqrestore(&gpio_lock, flags); -} -EXPORT_SYMBOL(orion5x_gpio_set_blink); - -int gpio_request(unsigned pin, const char *label) -{ - int ret = 0; - unsigned long flags; - - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __func__, pin); - return -EINVAL; - } - - spin_lock_irqsave(&gpio_lock, flags); - - if (gpio_label[pin]) { - pr_debug("%s: GPIO %d already used as %s\n", - __func__, pin, gpio_label[pin]); - ret = -EBUSY; - } else - gpio_label[pin] = label ? label : "?"; - - spin_unlock_irqrestore(&gpio_lock, flags); - return ret; -} -EXPORT_SYMBOL(gpio_request); - -void gpio_free(unsigned pin) -{ - might_sleep(); - - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __func__, pin); - return; - } - - if (!gpio_label[pin]) - pr_warning("%s: GPIO %d already freed\n", __func__, pin); - else - gpio_label[pin] = NULL; -} -EXPORT_SYMBOL(gpio_free); - -/* Debug helper */ -void gpio_display(void) -{ - int i; - - for (i = 0; i < GPIO_MAX; i++) { - printk(KERN_DEBUG "Pin-%d: ", i); - - if (!test_bit(i, gpio_valid)) { - printk("non-GPIO\n"); - } else if (!gpio_label[i]) { - printk("GPIO, free\n"); - } else { - printk("GPIO, used by %s, ", gpio_label[i]); - if (readl(GPIO_IO_CONF) & (1 << i)) { - printk("input, active %s, level %s, edge %s\n", - ((readl(GPIO_IN_POL) >> i) & 1) ? "low" : "high", - ((readl(GPIO_LEVEL_MASK) >> i) & 1) ? "enabled" : "masked", - ((readl(GPIO_EDGE_MASK) >> i) & 1) ? "enabled" : "masked"); - } else { - printk("output, val=%d\n", (readl(GPIO_OUT) >> i) & 1); - } - } - } - - printk(KERN_DEBUG "MPP_0_7_CTRL (0x%08x) = 0x%08x\n", - MPP_0_7_CTRL, readl(MPP_0_7_CTRL)); - printk(KERN_DEBUG "MPP_8_15_CTRL (0x%08x) = 0x%08x\n", - MPP_8_15_CTRL, readl(MPP_8_15_CTRL)); - printk(KERN_DEBUG "MPP_16_19_CTRL (0x%08x) = 0x%08x\n", - MPP_16_19_CTRL, readl(MPP_16_19_CTRL)); - printk(KERN_DEBUG "MPP_DEV_CTRL (0x%08x) = 0x%08x\n", - MPP_DEV_CTRL, readl(MPP_DEV_CTRL)); - printk(KERN_DEBUG "GPIO_OUT (0x%08x) = 0x%08x\n", - GPIO_OUT, readl(GPIO_OUT)); - printk(KERN_DEBUG "GPIO_IO_CONF (0x%08x) = 0x%08x\n", - GPIO_IO_CONF, readl(GPIO_IO_CONF)); - printk(KERN_DEBUG "GPIO_BLINK_EN (0x%08x) = 0x%08x\n", - GPIO_BLINK_EN, readl(GPIO_BLINK_EN)); - printk(KERN_DEBUG "GPIO_IN_POL (0x%08x) = 0x%08x\n", - GPIO_IN_POL, readl(GPIO_IN_POL)); - printk(KERN_DEBUG "GPIO_DATA_IN (0x%08x) = 0x%08x\n", - GPIO_DATA_IN, readl(GPIO_DATA_IN)); - printk(KERN_DEBUG "GPIO_LEVEL_MASK (0x%08x) = 0x%08x\n", - GPIO_LEVEL_MASK, readl(GPIO_LEVEL_MASK)); - printk(KERN_DEBUG "GPIO_EDGE_CAUSE (0x%08x) = 0x%08x\n", - GPIO_EDGE_CAUSE, readl(GPIO_EDGE_CAUSE)); - printk(KERN_DEBUG "GPIO_EDGE_MASK (0x%08x) = 0x%08x\n", - GPIO_EDGE_MASK, readl(GPIO_EDGE_MASK)); -} diff --git a/arch/arm/mach-orion5x/include/mach/dma.h b/arch/arm/mach-orion5x/include/mach/dma.h deleted file mode 100644 index 40a8c178f10d..000000000000 --- a/arch/arm/mach-orion5x/include/mach/dma.h +++ /dev/null @@ -1 +0,0 @@ -/* empty */ diff --git a/arch/arm/mach-orion5x/include/mach/gpio.h b/arch/arm/mach-orion5x/include/mach/gpio.h index 65dc136a86f7..d8182e87ac16 100644 --- a/arch/arm/mach-orion5x/include/mach/gpio.h +++ b/arch/arm/mach-orion5x/include/mach/gpio.h @@ -2,18 +2,26 @@ * arch/arm/mach-orion5x/include/mach/gpio.h * * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any + * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ -extern int gpio_request(unsigned pin, const char *label); -extern void gpio_free(unsigned pin); -extern int gpio_direction_input(unsigned pin); -extern int gpio_direction_output(unsigned pin, int value); -extern int gpio_get_value(unsigned pin); -extern void gpio_set_value(unsigned pin, int value); -extern void orion5x_gpio_set_blink(unsigned pin, int blink); -extern void gpio_display(void); /* debug */ +#ifndef __ASM_ARCH_GPIO_H +#define __ASM_ARCH_GPIO_H + +#include <mach/irqs.h> +#include <plat/gpio.h> +#include <asm-generic/gpio.h> /* cansleep wrappers */ + +#define GPIO_MAX 32 +#define GPIO_OUT(pin) ORION5X_DEV_BUS_REG(0x100) +#define GPIO_IO_CONF(pin) ORION5X_DEV_BUS_REG(0x104) +#define GPIO_BLINK_EN(pin) ORION5X_DEV_BUS_REG(0x108) +#define GPIO_IN_POL(pin) ORION5X_DEV_BUS_REG(0x10c) +#define GPIO_DATA_IN(pin) ORION5X_DEV_BUS_REG(0x110) +#define GPIO_EDGE_CAUSE(pin) ORION5X_DEV_BUS_REG(0x114) +#define GPIO_EDGE_MASK(pin) ORION5X_DEV_BUS_REG(0x118) +#define GPIO_LEVEL_MASK(pin) ORION5X_DEV_BUS_REG(0x11c) static inline int gpio_to_irq(int pin) { @@ -25,4 +33,5 @@ static inline int irq_to_gpio(int irq) return irq - IRQ_ORION5X_GPIO_START; } -#include <asm-generic/gpio.h> /* cansleep wrappers */ + +#endif diff --git a/arch/arm/mach-orion5x/include/mach/io.h b/arch/arm/mach-orion5x/include/mach/io.h index f24b2513f7f3..c47b033bd999 100644 --- a/arch/arm/mach-orion5x/include/mach/io.h +++ b/arch/arm/mach-orion5x/include/mach/io.h @@ -38,14 +38,9 @@ __arch_iounmap(void __iomem *addr) __iounmap(addr); } -static inline void __iomem *__io(unsigned long addr) -{ - return (void __iomem *)addr; -} - #define __arch_ioremap(p, s, m) __arch_ioremap(p, s, m) #define __arch_iounmap(a) __arch_iounmap(a) -#define __io(a) __io(a) +#define __io(a) __typesafe_io(a) #define __mem_pci(a) (a) diff --git a/arch/arm/mach-orion5x/include/mach/irqs.h b/arch/arm/mach-orion5x/include/mach/irqs.h index d5b0fbf6b965..a6fa9d8f12d8 100644 --- a/arch/arm/mach-orion5x/include/mach/irqs.h +++ b/arch/arm/mach-orion5x/include/mach/irqs.h @@ -13,8 +13,6 @@ #ifndef __ASM_ARCH_IRQS_H #define __ASM_ARCH_IRQS_H -#include "orion5x.h" /* need GPIO_MAX */ - /* * Orion Main Interrupt Controller */ @@ -54,7 +52,7 @@ * Orion General Purpose Pins */ #define IRQ_ORION5X_GPIO_START 32 -#define NR_GPIO_IRQS GPIO_MAX +#define NR_GPIO_IRQS 32 #define NR_IRQS (IRQ_ORION5X_GPIO_START + NR_GPIO_IRQS) diff --git a/arch/arm/mach-orion5x/include/mach/memory.h b/arch/arm/mach-orion5x/include/mach/memory.h index 54dd76b013f2..52a2955d0f87 100644 --- a/arch/arm/mach-orion5x/include/mach/memory.h +++ b/arch/arm/mach-orion5x/include/mach/memory.h @@ -9,8 +9,4 @@ #define PHYS_OFFSET UL(0x00000000) -#define __virt_to_bus(x) __virt_to_phys(x) -#define __bus_to_virt(x) __phys_to_virt(x) - - #endif diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h index 9f5ce1ce5840..67bda31406dd 100644 --- a/arch/arm/mach-orion5x/include/mach/orion5x.h +++ b/arch/arm/mach-orion5x/include/mach/orion5x.h @@ -134,14 +134,6 @@ #define MPP_16_19_CTRL ORION5X_DEV_BUS_REG(0x050) #define MPP_DEV_CTRL ORION5X_DEV_BUS_REG(0x008) #define MPP_RESET_SAMPLE ORION5X_DEV_BUS_REG(0x010) -#define GPIO_OUT ORION5X_DEV_BUS_REG(0x100) -#define GPIO_IO_CONF ORION5X_DEV_BUS_REG(0x104) -#define GPIO_BLINK_EN ORION5X_DEV_BUS_REG(0x108) -#define GPIO_IN_POL ORION5X_DEV_BUS_REG(0x10c) -#define GPIO_DATA_IN ORION5X_DEV_BUS_REG(0x110) -#define GPIO_EDGE_CAUSE ORION5X_DEV_BUS_REG(0x114) -#define GPIO_EDGE_MASK ORION5X_DEV_BUS_REG(0x118) -#define GPIO_LEVEL_MASK ORION5X_DEV_BUS_REG(0x11c) #define DEV_BANK_0_PARAM ORION5X_DEV_BUS_REG(0x45c) #define DEV_BANK_1_PARAM ORION5X_DEV_BUS_REG(0x460) #define DEV_BANK_2_PARAM ORION5X_DEV_BUS_REG(0x464) @@ -149,7 +141,6 @@ #define DEV_BUS_CTRL ORION5X_DEV_BUS_REG(0x4c0) #define DEV_BUS_INT_CAUSE ORION5X_DEV_BUS_REG(0x4d0) #define DEV_BUS_INT_MASK ORION5X_DEV_BUS_REG(0x4d4) -#define GPIO_MAX 32 /*************************************************************************** * Orion CPU Bridge Registers diff --git a/arch/arm/mach-orion5x/irq.c b/arch/arm/mach-orion5x/irq.c index 632a36f5cf14..0caae43301e5 100644 --- a/arch/arm/mach-orion5x/irq.c +++ b/arch/arm/mach-orion5x/irq.c @@ -19,193 +19,38 @@ #include <plat/irq.h> #include "common.h" -/***************************************************************************** - * Orion GPIO IRQ - * - * GPIO_IN_POL register controlls whether GPIO_DATA_IN will hold the same - * value of the line or the opposite value. - * - * Level IRQ handlers: DATA_IN is used directly as cause register. - * Interrupt are masked by LEVEL_MASK registers. - * Edge IRQ handlers: Change in DATA_IN are latched in EDGE_CAUSE. - * Interrupt are masked by EDGE_MASK registers. - * Both-edge handlers: Similar to regular Edge handlers, but also swaps - * the polarity to catch the next line transaction. - * This is a race condition that might not perfectly - * work on some use cases. - * - * Every eight GPIO lines are grouped (OR'ed) before going up to main - * cause register. - * - * EDGE cause mask - * data-in /--------| |-----| |----\ - * -----| |----- ---- to main cause reg - * X \----------------| |----/ - * polarity LEVEL mask - * - ****************************************************************************/ -static void orion5x_gpio_irq_ack(u32 irq) -{ - int pin = irq_to_gpio(irq); - if (irq_desc[irq].status & IRQ_LEVEL) - /* - * Mask bit for level interrupt - */ - orion5x_clrbits(GPIO_LEVEL_MASK, 1 << pin); - else - /* - * Clear casue bit for egde interrupt - */ - orion5x_clrbits(GPIO_EDGE_CAUSE, 1 << pin); -} - -static void orion5x_gpio_irq_mask(u32 irq) -{ - int pin = irq_to_gpio(irq); - if (irq_desc[irq].status & IRQ_LEVEL) - orion5x_clrbits(GPIO_LEVEL_MASK, 1 << pin); - else - orion5x_clrbits(GPIO_EDGE_MASK, 1 << pin); -} - -static void orion5x_gpio_irq_unmask(u32 irq) +static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) { - int pin = irq_to_gpio(irq); - if (irq_desc[irq].status & IRQ_LEVEL) - orion5x_setbits(GPIO_LEVEL_MASK, 1 << pin); - else - orion5x_setbits(GPIO_EDGE_MASK, 1 << pin); -} - -static int orion5x_gpio_set_irq_type(u32 irq, u32 type) -{ - int pin = irq_to_gpio(irq); - struct irq_desc *desc; - - if ((readl(GPIO_IO_CONF) & (1 << pin)) == 0) { - printk(KERN_ERR "orion5x_gpio_set_irq_type failed " - "(irq %d, pin %d).\n", irq, pin); - return -EINVAL; - } - - desc = irq_desc + irq; - - switch (type) { - case IRQ_TYPE_LEVEL_HIGH: - desc->handle_irq = handle_level_irq; - desc->status |= IRQ_LEVEL; - orion5x_clrbits(GPIO_IN_POL, (1 << pin)); - break; - case IRQ_TYPE_LEVEL_LOW: - desc->handle_irq = handle_level_irq; - desc->status |= IRQ_LEVEL; - orion5x_setbits(GPIO_IN_POL, (1 << pin)); - break; - case IRQ_TYPE_EDGE_RISING: - desc->handle_irq = handle_edge_irq; - desc->status &= ~IRQ_LEVEL; - orion5x_clrbits(GPIO_IN_POL, (1 << pin)); - break; - case IRQ_TYPE_EDGE_FALLING: - desc->handle_irq = handle_edge_irq; - desc->status &= ~IRQ_LEVEL; - orion5x_setbits(GPIO_IN_POL, (1 << pin)); - break; - case IRQ_TYPE_EDGE_BOTH: - desc->handle_irq = handle_edge_irq; - desc->status &= ~IRQ_LEVEL; - /* - * set initial polarity based on current input level - */ - if ((readl(GPIO_IN_POL) ^ readl(GPIO_DATA_IN)) - & (1 << pin)) - orion5x_setbits(GPIO_IN_POL, (1 << pin)); /* falling */ - else - orion5x_clrbits(GPIO_IN_POL, (1 << pin)); /* rising */ - - break; - default: - printk(KERN_ERR "failed to set irq=%d (type=%d)\n", irq, type); - return -EINVAL; - } - - desc->status &= ~IRQ_TYPE_SENSE_MASK; - desc->status |= type & IRQ_TYPE_SENSE_MASK; - - return 0; -} - -static struct irq_chip orion5x_gpio_irq_chip = { - .name = "Orion-IRQ-GPIO", - .ack = orion5x_gpio_irq_ack, - .mask = orion5x_gpio_irq_mask, - .unmask = orion5x_gpio_irq_unmask, - .set_type = orion5x_gpio_set_irq_type, -}; - -static void orion5x_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - u32 cause, offs, pin; - BUG_ON(irq < IRQ_ORION5X_GPIO_0_7 || irq > IRQ_ORION5X_GPIO_24_31); - offs = (irq - IRQ_ORION5X_GPIO_0_7) * 8; - cause = (readl(GPIO_DATA_IN) & readl(GPIO_LEVEL_MASK)) | - (readl(GPIO_EDGE_CAUSE) & readl(GPIO_EDGE_MASK)); - for (pin = offs; pin < offs + 8; pin++) { - if (cause & (1 << pin)) { - irq = gpio_to_irq(pin); - desc = irq_desc + irq; - if ((desc->status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) { - /* Swap polarity (race with GPIO line) */ - u32 polarity = readl(GPIO_IN_POL); - polarity ^= 1 << pin; - writel(polarity, GPIO_IN_POL); - } - generic_handle_irq(irq); - } - } + orion_gpio_irq_handler((irq - IRQ_ORION5X_GPIO_0_7) << 3); } -static void __init orion5x_init_gpio_irq(void) +void __init orion5x_init_irq(void) { int i; - struct irq_desc *desc; + + orion_irq_init(0, (void __iomem *)MAIN_IRQ_MASK); /* * Mask and clear GPIO IRQ interrupts */ - writel(0x0, GPIO_LEVEL_MASK); - writel(0x0, GPIO_EDGE_MASK); - writel(0x0, GPIO_EDGE_CAUSE); + writel(0x0, GPIO_LEVEL_MASK(0)); + writel(0x0, GPIO_EDGE_MASK(0)); + writel(0x0, GPIO_EDGE_CAUSE(0)); /* * Register chained level handlers for GPIO IRQs by default. * User can use set_type() if he wants to use edge types handlers. */ for (i = IRQ_ORION5X_GPIO_START; i < NR_IRQS; i++) { - set_irq_chip(i, &orion5x_gpio_irq_chip); + set_irq_chip(i, &orion_gpio_irq_level_chip); set_irq_handler(i, handle_level_irq); - desc = irq_desc + i; - desc->status |= IRQ_LEVEL; + irq_desc[i].status |= IRQ_LEVEL; set_irq_flags(i, IRQF_VALID); } - set_irq_chained_handler(IRQ_ORION5X_GPIO_0_7, orion5x_gpio_irq_handler); - set_irq_chained_handler(IRQ_ORION5X_GPIO_8_15, orion5x_gpio_irq_handler); - set_irq_chained_handler(IRQ_ORION5X_GPIO_16_23, orion5x_gpio_irq_handler); - set_irq_chained_handler(IRQ_ORION5X_GPIO_24_31, orion5x_gpio_irq_handler); -} - -/***************************************************************************** - * Orion Main IRQ - ****************************************************************************/ -static void __init orion5x_init_main_irq(void) -{ - orion_irq_init(0, (void __iomem *)MAIN_IRQ_MASK); -} - -void __init orion5x_init_irq(void) -{ - orion5x_init_main_irq(); - orion5x_init_gpio_irq(); + set_irq_chained_handler(IRQ_ORION5X_GPIO_0_7, gpio_irq_handler); + set_irq_chained_handler(IRQ_ORION5X_GPIO_8_15, gpio_irq_handler); + set_irq_chained_handler(IRQ_ORION5X_GPIO_16_23, gpio_irq_handler); + set_irq_chained_handler(IRQ_ORION5X_GPIO_24_31, gpio_irq_handler); } diff --git a/arch/arm/mach-orion5x/mpp.c b/arch/arm/mach-orion5x/mpp.c index 640ea2a3fc6c..e23a3f91d6c6 100644 --- a/arch/arm/mach-orion5x/mpp.c +++ b/arch/arm/mach-orion5x/mpp.c @@ -12,6 +12,7 @@ #include <linux/init.h> #include <linux/mbus.h> #include <linux/io.h> +#include <asm/gpio.h> #include <mach/hardware.h> #include "common.h" #include "mpp.h" @@ -152,7 +153,10 @@ void __init orion5x_mpp_conf(struct orion5x_mpp_mode *mode) *reg &= ~(0xf << shift); *reg |= (num_type & 0xf) << shift; - orion5x_gpio_set_valid(mode->mpp, !!(mode->type == MPP_GPIO)); + if (mode->type == MPP_UNUSED && (mode->mpp < 16 || is_5182())) + orion_gpio_set_unused(mode->mpp); + + orion_gpio_set_valid(mode->mpp, !!(mode->type == MPP_GPIO)); mode++; } |