ARM: gemini: get platform to build again

There is no defconfig file for gemini, which has lead to a lot
of bitrot. This makes the broken board files, the gpio implementation
and the reset logic work again, and fixes the build warnings
that got introduced with the changes to the readl/writel prototypes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/Kconfig

@@ -411,6 +411,7 @@ config ARCH_GEMINI
 	bool "Cortina Systems Gemini"
 	select ARCH_REQUIRE_GPIOLIB
 	select ARCH_USES_GETTIMEOFFSET
+	select NEED_MACH_GPIO_H
 	select CPU_FA526
 	help
 	  Support for the Cortina Systems Gemini family SoCs

arch/arm/mach-gemini/Makefile

@@ -4,7 +4,7 @@
 
 # Object file lists.
 
-obj-y			:= irq.o mm.o time.o devices.o gpio.o idle.o
+obj-y			:= irq.o mm.o time.o devices.o gpio.o idle.o reset.o
 
 # Board-specific support
 obj-$(CONFIG_MACH_NAS4220B)	+= board-nas4220b.o

arch/arm/mach-gemini/board-nas4220b.c

@@ -103,4 +103,5 @@ MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B")
 	.init_irq	= gemini_init_irq,
 	.init_time	= gemini_timer_init,
 	.init_machine	= ib4220b_init,
+	.restart	= gemini_restart,
 MACHINE_END

arch/arm/mach-gemini/board-rut1xx.c

@@ -14,6 +14,7 @@
 #include <linux/leds.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
+#include <linux/sizes.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -87,4 +88,5 @@ MACHINE_START(RUT100, "Teltonika RUT100")
 	.init_irq	= gemini_init_irq,
 	.init_time	= gemini_timer_init,
 	.init_machine	= rut1xx_init,
+	.restart	= gemini_restart,
 MACHINE_END

arch/arm/mach-gemini/board-wbd111.c

@@ -130,4 +130,5 @@ MACHINE_START(WBD111, "Wiliboard WBD-111")
 	.init_irq	= gemini_init_irq,
 	.init_time	= gemini_timer_init,
 	.init_machine	= wbd111_init,
+	.restart	= gemini_restart,
 MACHINE_END

arch/arm/mach-gemini/board-wbd222.c

@@ -130,4 +130,5 @@ MACHINE_START(WBD222, "Wiliboard WBD-222")
 	.init_irq	= gemini_init_irq,
 	.init_time	= gemini_timer_init,
 	.init_machine	= wbd222_init,
+	.restart	= gemini_restart,
 MACHINE_END

arch/arm/mach-gemini/common.h

@@ -26,4 +26,6 @@ extern int platform_register_pflash(unsigned int size,
 				    struct mtd_partition *parts,
 				    unsigned int nr_parts);
 
+extern void gemini_restart(char mode, const char *cmd);
+
 #endif /* __GEMINI_COMMON_H__ */

arch/arm/mach-gemini/gpio.c

@@ -21,6 +21,7 @@
 
 #include <mach/hardware.h>
 #include <mach/irqs.h>
+#include <mach/gpio.h>
 
 #define GPIO_BASE(x)		IO_ADDRESS(GEMINI_GPIO_BASE(x))
 
@@ -44,7 +45,7 @@
 
 #define GPIO_PORT_NUM		3
 
-static void _set_gpio_irqenable(unsigned int base, unsigned int index,
+static void _set_gpio_irqenable(void __iomem *base, unsigned int index,
 				int enable)
 {
 	unsigned int reg;
@@ -57,7 +58,7 @@ static void _set_gpio_irqenable(unsigned int base, unsigned int index,
 static void gpio_ack_irq(struct irq_data *d)
 {
 	unsigned int gpio = irq_to_gpio(d->irq);
-	unsigned int base = GPIO_BASE(gpio / 32);
+	void __iomem *base = GPIO_BASE(gpio / 32);
 
 	__raw_writel(1 << (gpio % 32), base + GPIO_INT_CLR);
 }
@@ -65,7 +66,7 @@ static void gpio_ack_irq(struct irq_data *d)
 static void gpio_mask_irq(struct irq_data *d)
 {
 	unsigned int gpio = irq_to_gpio(d->irq);
-	unsigned int base = GPIO_BASE(gpio / 32);
+	void __iomem *base = GPIO_BASE(gpio / 32);
 
 	_set_gpio_irqenable(base, gpio % 32, 0);
 }
@@ -73,7 +74,7 @@ static void gpio_mask_irq(struct irq_data *d)
 static void gpio_unmask_irq(struct irq_data *d)
 {
 	unsigned int gpio = irq_to_gpio(d->irq);
-	unsigned int base = GPIO_BASE(gpio / 32);
+	void __iomem *base = GPIO_BASE(gpio / 32);
 
 	_set_gpio_irqenable(base, gpio % 32, 1);
 }
@@ -82,7 +83,7 @@ static int gpio_set_irq_type(struct irq_data *d, unsigned int type)
 {
 	unsigned int gpio = irq_to_gpio(d->irq);
 	unsigned int gpio_mask = 1 << (gpio % 32);
-	unsigned int base = GPIO_BASE(gpio / 32);
+	void __iomem *base = GPIO_BASE(gpio / 32);
 	unsigned int reg_both, reg_level, reg_type;
 
 	reg_type = __raw_readl(base + GPIO_INT_TYPE);
@@ -120,7 +121,7 @@ static int gpio_set_irq_type(struct irq_data *d, unsigned int type)
 	__raw_writel(reg_level, base + GPIO_INT_LEVEL);
 	__raw_writel(reg_both, base + GPIO_INT_BOTH_EDGE);
 
-	gpio_ack_irq(d->irq);
+	gpio_ack_irq(d);
 
 	return 0;
 }
@@ -153,7 +154,7 @@ static struct irq_chip gpio_irq_chip = {
 static void _set_gpio_direction(struct gpio_chip *chip, unsigned offset,
 				int dir)
 {
-	unsigned int base = GPIO_BASE(offset / 32);
+	void __iomem *base = GPIO_BASE(offset / 32);
 	unsigned int reg;
 
 	reg = __raw_readl(base + GPIO_DIR);
@@ -166,7 +167,7 @@ static void _set_gpio_direction(struct gpio_chip *chip, unsigned offset,
 
 static void gemini_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	unsigned int base = GPIO_BASE(offset / 32);
+	void __iomem *base = GPIO_BASE(offset / 32);
 
 	if (value)
 		__raw_writel(1 << (offset % 32), base + GPIO_DATA_SET);
@@ -176,7 +177,7 @@ static void gemini_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 static int gemini_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	unsigned int base = GPIO_BASE(offset / 32);
+	void __iomem *base = GPIO_BASE(offset / 32);
 
 	return (__raw_readl(base + GPIO_DATA_IN) >> (offset % 32)) & 1;
 }

arch/arm/mach-gemini/include/mach/hardware.h

@@ -69,6 +69,6 @@
 /*
  * macro to get at IO space when running virtually
  */
-#define IO_ADDRESS(x)	((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
+#define IO_ADDRESS(x)	IOMEM((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
 
 #endif

arch/arm/mach-gemini/irq.c

@@ -65,8 +65,8 @@ static struct irq_chip gemini_irq_chip = {
 
 static struct resource irq_resource = {
 	.name	= "irq_handler",
-	.start	= IO_ADDRESS(GEMINI_INTERRUPT_BASE),
-	.end	= IO_ADDRESS(FIQ_STATUS(GEMINI_INTERRUPT_BASE)) + 4,
+	.start	= GEMINI_INTERRUPT_BASE,
+	.end	= FIQ_STATUS(GEMINI_INTERRUPT_BASE) + 4,
 };
 
 void __init gemini_init_irq(void)

arch/arm/mach-gemini/mm.c

@@ -19,57 +19,57 @@
 /* Page table mapping for I/O region */
 static struct map_desc gemini_io_desc[] __initdata = {
 	{
-		.virtual	= IO_ADDRESS(GEMINI_GLOBAL_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GLOBAL_BASE),
 		.pfn		=__phys_to_pfn(GEMINI_GLOBAL_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_UART_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_UART_BASE),
 		.pfn		= __phys_to_pfn(GEMINI_UART_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_TIMER_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_TIMER_BASE),
 		.pfn		= __phys_to_pfn(GEMINI_TIMER_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_INTERRUPT_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_INTERRUPT_BASE),
 		.pfn		= __phys_to_pfn(GEMINI_INTERRUPT_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_POWER_CTRL_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_POWER_CTRL_BASE),
 		.pfn		= __phys_to_pfn(GEMINI_POWER_CTRL_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_GPIO_BASE(0)),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GPIO_BASE(0)),
 		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(0)),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_GPIO_BASE(1)),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GPIO_BASE(1)),
 		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(1)),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_GPIO_BASE(2)),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GPIO_BASE(2)),
 		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(2)),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
 		.pfn		= __phys_to_pfn(GEMINI_FLASH_CTRL_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_DRAM_CTRL_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_DRAM_CTRL_BASE),
 		.pfn		= __phys_to_pfn(GEMINI_DRAM_CTRL_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,
 	}, {
-		.virtual	= IO_ADDRESS(GEMINI_GENERAL_DMA_BASE),
+		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GENERAL_DMA_BASE),
 		.pfn		= __phys_to_pfn(GEMINI_GENERAL_DMA_BASE),
 		.length		= SZ_512K,
 		.type 		= MT_DEVICE,

arch/arm/mach-gemini/include/mach/system.h → arch/arm/mach-gemini/reset.c

@@ -14,7 +14,7 @@
 #include <mach/hardware.h>
 #include <mach/global_reg.h>
 
-static inline void arch_reset(char mode, const char *cmd)
+void gemini_restart(char mode, const char *cmd)
 {
 	__raw_writel(RESET_GLOBAL | RESET_CPU1,
 		     IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_RESET);