X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-arm%2Farch-ixp4xx%2Fplatform.h;h=ab194e5f66537cac410c457483282b410d7b6acb;hb=refs%2Fheads%2Fvserver;hp=52c1c445c5360f72a217cff0ff7a56ee354bc44e;hpb=e812ccbe0c915857ebea6a632bfadc631f7504a9;p=linux-2.6.git

diff --git a/include/asm-arm/arch-ixp4xx/platform.h b/include/asm-arm/arch-ixp4xx/platform.h
index 52c1c445c..ab194e5f6 100644
--- a/include/asm-arm/arch-ixp4xx/platform.h
+++ b/include/asm-arm/arch-ixp4xx/platform.h
@@ -15,21 +15,55 @@
 
 #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)
 
-#define	IXP4XX_EXP_BUS_CSX_REGION_SIZE	(0x01000000)
+/*
+ * 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)
 
-#define IXP4XX_EXP_BUS_CS0_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x00000000)
-#define IXP4XX_EXP_BUS_CS1_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x01000000)
-#define IXP4XX_EXP_BUS_CS2_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x02000000)
-#define IXP4XX_EXP_BUS_CS3_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x03000000)
-#define IXP4XX_EXP_BUS_CS4_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x04000000)
-#define IXP4XX_EXP_BUS_CS5_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x05000000)
-#define IXP4XX_EXP_BUS_CS6_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x06000000)
-#define IXP4XX_EXP_BUS_CS7_BASE_PHYS	(IXP4XX_EXP_BUS_BASE_PHYS + 0x07000000)
+/* 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)
@@ -52,12 +86,34 @@ struct ixp4xx_i2c_pins {
 	unsigned long scl_pin;
 };
 
+/*
+ * 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;
+
+/*
+ * 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 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);
@@ -73,17 +129,6 @@ extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
 #define IXP4XX_GPIO_OUT 		0x1
 #define IXP4XX_GPIO_IN  		0x2
 
-#define IXP4XX_GPIO_INTSTYLE_MASK	0x7C  /* Bits [6:2] define interrupt style */
-
-/* 
- * GPIO interrupt types.
- */
-#define IXP4XX_GPIO_ACTIVE_HIGH		0x4 /* Default */
-#define IXP4XX_GPIO_ACTIVE_LOW		0x8
-#define IXP4XX_GPIO_RISING_EDGE		0x10
-#define IXP4XX_GPIO_FALLING_EDGE 	0x20
-#define IXP4XX_GPIO_TRANSITIONAL 	0x40
-
 /* GPIO signal types */
 #define IXP4XX_GPIO_LOW			0
 #define IXP4XX_GPIO_HIGH		1
@@ -92,7 +137,13 @@ extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
 #define IXP4XX_GPIO_CLK_0		14
 #define IXP4XX_GPIO_CLK_1		15
 
-extern void gpio_line_config(u8 line, u32 style);
+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)
 {
@@ -107,10 +158,5 @@ static inline void gpio_line_set(u8 line, int value)
 	    *IXP4XX_GPIO_GPOUTR &= ~(1 << line);
 }
 
-static inline void gpio_line_isr_clear(u8 line)
-{
-	*IXP4XX_GPIO_GPISR = (1 << line);
-}
-
 #endif // __ASSEMBLY__