Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk

1 files changed, 173 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp4xx/include/mach/platform.h b/arch/arm/mach-ixp4xx/include/mach/platform.h
new file mode 100644
index 000000000000..e824c02c825a
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -0,0 +1,173 @@
+/*
+ * arch/arm/mach-ixp4xx/include/mach/platform.h
+ *
+ * Constants and functions that are useful to IXP4xx platform-specific code
+ * and device drivers.
+ *
+ * Copyright (C) 2004 MontaVista Software, Inc.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H__
+#error "Do not include this directly, instead #include <mach/hardware.h>"
+#endif
+
+#ifndef __ASSEMBLY__
+
+#include <asm/types.h>
+
+#ifndef	__ARMEB__
+#define	REG_OFFSET	0
+#else
+#define	REG_OFFSET	3
+#endif
+
+/*
+ * Expansion bus memory regions
+ */
+#define IXP4XX_EXP_BUS_BASE_PHYS	(0x50000000)
+
+/*
+ * The expansion bus on the IXP4xx can be configured for either 16 or
+ * 32MB windows and the CS offset for each region changes based on the
+ * current configuration. This means that we cannot simply hardcode
+ * each offset. ixp4xx_sys_init() looks at the expansion bus configuration
+ * as setup by the bootloader to determine our window size.
+ */
+extern unsigned long ixp4xx_exp_bus_size;
+
+#define	IXP4XX_EXP_BUS_BASE(region)\
+		(IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size))
+
+#define IXP4XX_EXP_BUS_END(region)\
+		(IXP4XX_EXP_BUS_BASE(region) + ixp4xx_exp_bus_size - 1)
+
+/* Those macros can be used to adjust timing and configure
+ * other features for each region.
+ */
+
+#define IXP4XX_EXP_BUS_RECOVERY_T(x)	(((x) & 0x0f) << 16)
+#define IXP4XX_EXP_BUS_HOLD_T(x)	(((x) & 0x03) << 20)
+#define IXP4XX_EXP_BUS_STROBE_T(x)	(((x) & 0x0f) << 22)
+#define IXP4XX_EXP_BUS_SETUP_T(x)	(((x) & 0x03) << 26)
+#define IXP4XX_EXP_BUS_ADDR_T(x)	(((x) & 0x03) << 28)
+#define IXP4XX_EXP_BUS_SIZE(x)		(((x) & 0x0f) << 10)
+#define IXP4XX_EXP_BUS_CYCLES(x)	(((x) & 0x03) << 14)
+
+#define IXP4XX_EXP_BUS_CS_EN		(1L << 31)
+#define IXP4XX_EXP_BUS_BYTE_RD16	(1L << 6)
+#define IXP4XX_EXP_BUS_HRDY_POL		(1L << 5)
+#define IXP4XX_EXP_BUS_MUX_EN		(1L << 4)
+#define IXP4XX_EXP_BUS_SPLT_EN		(1L << 3)
+#define IXP4XX_EXP_BUS_WR_EN		(1L << 1)
+#define IXP4XX_EXP_BUS_BYTE_EN		(1L << 0)
+
+#define IXP4XX_EXP_BUS_CYCLES_INTEL	0x00
+#define IXP4XX_EXP_BUS_CYCLES_MOTOROLA	0x01
+#define IXP4XX_EXP_BUS_CYCLES_HPI	0x02
+
+#define IXP4XX_FLASH_WRITABLE	(0x2)
+#define IXP4XX_FLASH_DEFAULT	(0xbcd23c40)
+#define IXP4XX_FLASH_WRITE	(0xbcd23c42)
+
+/*
+ * Clock Speed Definitions.
+ */
+#define IXP4XX_PERIPHERAL_BUS_CLOCK 	(66) /* 66Mhzi APB BUS   */ 
+#define IXP4XX_UART_XTAL        	14745600
+
+/*
+ * This structure provide a means for the board setup code
+ * to give information to th pata_ixp4xx driver. It is
+ * passed as platform_data.
+ */
+struct ixp4xx_pata_data {
+	volatile u32	*cs0_cfg;
+	volatile u32	*cs1_cfg;
+	unsigned long	cs0_bits;
+	unsigned long	cs1_bits;
+	void __iomem	*cs0;
+	void __iomem	*cs1;
+};
+
+struct sys_timer;
+
+#define IXP4XX_ETH_NPEA		0x00
+#define IXP4XX_ETH_NPEB		0x10
+#define IXP4XX_ETH_NPEC		0x20
+
+/* Information about built-in Ethernet MAC interfaces */
+struct eth_plat_info {
+	u8 phy;		/* MII PHY ID, 0 - 31 */
+	u8 rxq;		/* configurable, currently 0 - 31 only */
+	u8 txreadyq;
+	u8 hwaddr[6];
+};
+
+/* Information about built-in HSS (synchronous serial) interfaces */
+struct hss_plat_info {
+	int (*set_clock)(int port, unsigned int clock_type);
+	int (*open)(int port, void *pdev,
+		    void (*set_carrier_cb)(void *pdev, int carrier));
+	void (*close)(int port, void *pdev);
+	u8 txreadyq;
+};
+
+/*
+ * Frequency of clock used for primary clocksource
+ */
+extern unsigned long ixp4xx_timer_freq;
+
+/*
+ * Functions used by platform-level setup code
+ */
+extern void ixp4xx_map_io(void);
+extern void ixp4xx_init_irq(void);
+extern void ixp4xx_sys_init(void);
+extern void ixp4xx_timer_init(void);
+extern struct sys_timer ixp4xx_timer;
+extern void ixp4xx_pci_preinit(void);
+struct pci_sys_data;
+extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
+extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
+
+/*
+ * GPIO-functions
+ */
+/*
+ * The following converted to the real HW bits the gpio_line_config
+ */
+/* GPIO pin types */
+#define IXP4XX_GPIO_OUT 		0x1
+#define IXP4XX_GPIO_IN  		0x2
+
+/* GPIO signal types */
+#define IXP4XX_GPIO_LOW			0
+#define IXP4XX_GPIO_HIGH		1
+
+/* GPIO Clocks */
+#define IXP4XX_GPIO_CLK_0		14
+#define IXP4XX_GPIO_CLK_1		15
+
+static inline void gpio_line_config(u8 line, u32 direction)
+{
+	if (direction == IXP4XX_GPIO_IN)
+		*IXP4XX_GPIO_GPOER |= (1 << line);
+	else
+		*IXP4XX_GPIO_GPOER &= ~(1 << line);
+}
+
+static inline void gpio_line_get(u8 line, int *value)
+{
+	*value = (*IXP4XX_GPIO_GPINR >> line) & 0x1;
+}
+
+static inline void gpio_line_set(u8 line, int value)
+{
+	if (value == IXP4XX_GPIO_HIGH)
+	    *IXP4XX_GPIO_GPOUTR |= (1 << line);
+	else if (value == IXP4XX_GPIO_LOW)
+	    *IXP4XX_GPIO_GPOUTR &= ~(1 << line);
+}
+
+#endif // __ASSEMBLY__
+