ARM: LPC32xx: Device tree support

This patch does the actual device tree switch for the LPC32xx SoC. Signed-off-by: Roland Stigge <stigge@antcom.de>
git-mirror · Apr 22, 2012 · f5c4227 · f5c4227
1 parent e04920d
commit f5c4227
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diff --git a/Documentation/devicetree/bindings/arm/lpc32xx-mic.txt b/Documentation/devicetree/bindings/arm/lpc32xx-mic.txt
@@ -0,0 +1,38 @@
+* NXP LPC32xx Main Interrupt Controller
+  (MIC, including SIC1 and SIC2 secondary controllers)
+
+Required properties:
+- compatible: Should be "nxp,lpc3220-mic"
+- interrupt-controller: Identifies the node as an interrupt controller.
+- interrupt-parent: Empty for the interrupt controller itself
+- #interrupt-cells: The number of cells to define the interrupts. Should be 2.
+  The first cell is the IRQ number
+  The second cell is used to specify mode:
+      1 = low-to-high edge triggered
+      2 = high-to-low edge triggered
+      4 = active high level-sensitive
+      8 = active low level-sensitive
+      Default for internal sources should be set to 4 (active high).
+- reg: Should contain MIC registers location and length
+
+Examples:
+	/*
+	 * MIC
+	 */
+	mic: interrupt-controller@40008000 {
+		compatible = "nxp,lpc3220-mic";
+		interrupt-controller;
+		interrupt-parent;
+		#interrupt-cells = <2>;
+		reg = <0x40008000 0xC000>;
+	};
+
+	/*
+	 * ADC
+	 */
+	adc@40048000 {
+		compatible = "nxp,lpc3220-adc";
+		reg = <0x40048000 0x1000>;
+		interrupt-parent = <&mic>;
+		interrupts = <39 4>;
+	};
diff --git a/Documentation/devicetree/bindings/arm/lpc32xx.txt b/Documentation/devicetree/bindings/arm/lpc32xx.txt
@@ -0,0 +1,8 @@
+NXP LPC32xx Platforms Device Tree Bindings
+------------------------------------------
+
+Boards with the NXP LPC32xx SoC shall have the following properties:
+
+Required root node property:
+
+compatible: must be "nxp,lpc3220", "nxp,lpc3230", "nxp,lpc3240" or "nxp,lpc3250"
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
@@ -597,6 +597,7 @@ config ARCH_LPC32XX
 	select USB_ARCH_HAS_OHCI
 	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
+	select USE_OF
 	help
 	  Support for the NXP LPC32XX family of processors
 

diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
@@ -31,198 +31,6 @@
 #include <mach/platform.h>
 #include "common.h"
 
-/*
- * Watchdog timer
- */
-static struct resource watchdog_resources[] = {
-	[0] = {
-		.start = LPC32XX_WDTIM_BASE,
-		.end = LPC32XX_WDTIM_BASE + SZ_4K - 1,
-		.flags = IORESOURCE_MEM,
-	},
-};
-
-struct platform_device lpc32xx_watchdog_device = {
-	.name = "pnx4008-watchdog",
-	.id = -1,
-	.num_resources = ARRAY_SIZE(watchdog_resources),
-	.resource = watchdog_resources,
-};
-
-/*
- * I2C busses
- */
-static struct resource i2c0_resources[] = {
-	[0] = {
-		.start = LPC32XX_I2C1_BASE,
-		.end = LPC32XX_I2C1_BASE + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_LPC32XX_I2C_1,
-		.end = IRQ_LPC32XX_I2C_1,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource i2c1_resources[] = {
-	[0] = {
-		.start = LPC32XX_I2C2_BASE,
-		.end = LPC32XX_I2C2_BASE + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_LPC32XX_I2C_2,
-		.end = IRQ_LPC32XX_I2C_2,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource i2c2_resources[] = {
-	[0] = {
-		.start = LPC32XX_OTG_I2C_BASE,
-		.end = LPC32XX_OTG_I2C_BASE + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_LPC32XX_USB_I2C,
-		.end = IRQ_LPC32XX_USB_I2C,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device lpc32xx_i2c0_device = {
-	.name = "pnx-i2c.0",
-	.id = 0,
-	.num_resources = ARRAY_SIZE(i2c0_resources),
-	.resource = i2c0_resources,
-};
-
-struct platform_device lpc32xx_i2c1_device = {
-	.name = "pnx-i2c.1",
-	.id = 1,
-	.num_resources = ARRAY_SIZE(i2c1_resources),
-	.resource = i2c1_resources,
-};
-
-struct platform_device lpc32xx_i2c2_device = {
-	.name = "pnx-i2c.2",
-	.id = 2,
-	.num_resources = ARRAY_SIZE(i2c2_resources),
-	.resource = i2c2_resources,
-};
-
-/* TSC (Touch Screen Controller) */
-
-static struct resource lpc32xx_tsc_resources[] = {
-	{
-		.start = LPC32XX_ADC_BASE,
-		.end = LPC32XX_ADC_BASE + SZ_4K - 1,
-		.flags = IORESOURCE_MEM,
-	}, {
-		.start = IRQ_LPC32XX_TS_IRQ,
-		.end = IRQ_LPC32XX_TS_IRQ,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device lpc32xx_tsc_device = {
-	.name =  "ts-lpc32xx",
-	.id = -1,
-	.num_resources = ARRAY_SIZE(lpc32xx_tsc_resources),
-	.resource = lpc32xx_tsc_resources,
-};
-
-/* RTC */
-
-static struct resource lpc32xx_rtc_resources[] = {
-	{
-		.start = LPC32XX_RTC_BASE,
-		.end = LPC32XX_RTC_BASE + SZ_4K - 1,
-		.flags = IORESOURCE_MEM,
-	},{
-		.start = IRQ_LPC32XX_RTC,
-		.end = IRQ_LPC32XX_RTC,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device lpc32xx_rtc_device = {
-	.name =  "rtc-lpc32xx",
-	.id = -1,
-	.num_resources = ARRAY_SIZE(lpc32xx_rtc_resources),
-	.resource = lpc32xx_rtc_resources,
-};
-
-/*
- * ADC support
- */
-static struct resource adc_resources[] = {
-	{
-		.start = LPC32XX_ADC_BASE,
-		.end = LPC32XX_ADC_BASE + SZ_4K - 1,
-		.flags = IORESOURCE_MEM,
-	}, {
-		.start = IRQ_LPC32XX_TS_IRQ,
-		.end = IRQ_LPC32XX_TS_IRQ,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device lpc32xx_adc_device = {
-	.name =  "lpc32xx-adc",
-	.id = -1,
-	.num_resources = ARRAY_SIZE(adc_resources),
-	.resource = adc_resources,
-};
-
-/*
- * USB support
- */
-/* The dmamask must be set for OHCI to work */
-static u64 ohci_dmamask = ~(u32) 0;
-static struct resource ohci_resources[] = {
-	{
-		.start = IO_ADDRESS(LPC32XX_USB_BASE),
-		.end = IO_ADDRESS(LPC32XX_USB_BASE + 0x100 - 1),
-		.flags = IORESOURCE_MEM,
-	}, {
-		.start = IRQ_LPC32XX_USB_HOST,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-struct platform_device lpc32xx_ohci_device = {
-	.name = "usb-ohci",
-	.id = -1,
-	.dev = {
-		.dma_mask = &ohci_dmamask,
-		.coherent_dma_mask = 0xFFFFFFFF,
-	},
-	.num_resources = ARRAY_SIZE(ohci_resources),
-	.resource = ohci_resources,
-};
-
-/*
- * Network Support
- */
-static struct resource net_resources[] = {
-	[0] = DEFINE_RES_MEM(LPC32XX_ETHERNET_BASE, SZ_4K),
-	[1] = DEFINE_RES_MEM(LPC32XX_IRAM_BASE, SZ_128K),
-	[2] = DEFINE_RES_IRQ(IRQ_LPC32XX_ETHERNET),
-};
-
-static u64 lpc32xx_mac_dma_mask = 0xffffffffUL;
-struct platform_device lpc32xx_net_device = {
-	.name = "lpc-eth",
-	.id = 0,
-	.dev = {
-		.dma_mask = &lpc32xx_mac_dma_mask,
-		.coherent_dma_mask = 0xffffffffUL,
-	},
-	.num_resources = ARRAY_SIZE(net_resources),
-	.resource = net_resources,
-};
-
 /*
  * Returns the unique ID for the device
  */

diff --git a/arch/arm/mach-lpc32xx/common.h b/arch/arm/mach-lpc32xx/common.h
@@ -22,27 +22,13 @@
 #include <mach/board.h>
 #include <linux/platform_device.h>
 
-/*
- * Arch specific platform device structures
- */
-extern struct platform_device lpc32xx_watchdog_device;
-extern struct platform_device lpc32xx_i2c0_device;
-extern struct platform_device lpc32xx_i2c1_device;
-extern struct platform_device lpc32xx_i2c2_device;
-extern struct platform_device lpc32xx_tsc_device;
-extern struct platform_device lpc32xx_adc_device;
-extern struct platform_device lpc32xx_rtc_device;
-extern struct platform_device lpc32xx_ohci_device;
-extern struct platform_device lpc32xx_net_device;
-
 /*
  * Other arch specific structures and functions
  */
 extern struct sys_timer lpc32xx_timer;
 extern void __init lpc32xx_init_irq(void);
 extern void __init lpc32xx_map_io(void);
 extern void __init lpc32xx_serial_init(void);
-extern void __init lpc32xx_gpio_init(void);
 extern void lpc23xx_restart(char, const char *);