[ARM] 5282/1: pxa: add CM-X255 support

Signed-off-by: Russ Dill <russ.dill@gmail.com>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

6 files changed, 199 insertions, 9 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 92a298bb13c4..40d1d21b9e29 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -207,9 +207,11 @@ config MACH_SAAR
 	select PXA930
 
 config MACH_ARMCORE
-	bool "CompuLab CM-X270 modules"
+	bool "CompuLab CM-X255/CM-X270 modules"
 	select PXA27x
 	select IWMMXT
+	select PXA25x
+	select PXA_SSP
 
 config MACH_CM_X300
 	bool "CompuLab CM-X300 modules"
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index d2d179ecfc50..f0dfc9689ed4 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -53,7 +53,7 @@ obj-$(CONFIG_MACH_LITTLETON)	+= littleton.o
 obj-$(CONFIG_MACH_TAVOREVB)	+= tavorevb.o
 obj-$(CONFIG_MACH_SAAR)		+= saar.o
 
-obj-$(CONFIG_MACH_ARMCORE)      += cm-x2xx.o cm-x270.o
+obj-$(CONFIG_MACH_ARMCORE)      += cm-x2xx.o cm-x255.o cm-x270.o
 obj-$(CONFIG_MACH_CM_X300)      += cm-x300.o
 obj-$(CONFIG_PXA_EZX)           += ezx.o
 
diff --git a/arch/arm/mach-pxa/cm-x255.c b/arch/arm/mach-pxa/cm-x255.c
new file mode 100644
index 000000000000..15c5b9dc6383
--- /dev/null
+++ b/arch/arm/mach-pxa/cm-x255.c
@@ -0,0 +1,142 @@
+/*
+ * linux/arch/arm/mach-pxa/cm-x255.c
+ *
+ * Copyright (C) 2007, 2008 CompuLab, Ltd.
+ * Mike Rapoport <mike@compulab.co.il>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+#include <linux/spi/spi.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+#include <asm/mach/map.h>
+
+#include <mach/pxa2xx-regs.h>
+#include <mach/mfp-pxa25x.h>
+#include <mach/pxa2xx_spi.h>
+#include <mach/bitfield.h>
+
+#include "generic.h"
+
+static unsigned long cmx255_pin_config[] = {
+	/* AC'97 */
+	GPIO28_AC97_BITCLK,
+	GPIO29_AC97_SDATA_IN_0,
+	GPIO30_AC97_SDATA_OUT,
+	GPIO31_AC97_SYNC,
+
+	/* BTUART */
+	GPIO42_BTUART_RXD,
+	GPIO43_BTUART_TXD,
+	GPIO44_BTUART_CTS,
+	GPIO45_BTUART_RTS,
+
+	/* STUART */
+	GPIO46_STUART_RXD,
+	GPIO47_STUART_TXD,
+
+	/* LCD */
+	GPIO58_LCD_LDD_0,
+	GPIO59_LCD_LDD_1,
+	GPIO60_LCD_LDD_2,
+	GPIO61_LCD_LDD_3,
+	GPIO62_LCD_LDD_4,
+	GPIO63_LCD_LDD_5,
+	GPIO64_LCD_LDD_6,
+	GPIO65_LCD_LDD_7,
+	GPIO66_LCD_LDD_8,
+	GPIO67_LCD_LDD_9,
+	GPIO68_LCD_LDD_10,
+	GPIO69_LCD_LDD_11,
+	GPIO70_LCD_LDD_12,
+	GPIO71_LCD_LDD_13,
+	GPIO72_LCD_LDD_14,
+	GPIO73_LCD_LDD_15,
+	GPIO74_LCD_FCLK,
+	GPIO75_LCD_LCLK,
+	GPIO76_LCD_PCLK,
+	GPIO77_LCD_BIAS,
+
+	/* SSP1 */
+	GPIO23_SSP1_SCLK,
+	GPIO24_SSP1_SFRM,
+	GPIO25_SSP1_TXD,
+	GPIO26_SSP1_RXD,
+
+	/* SSP2 */
+	GPIO81_SSP2_CLK_OUT,
+	GPIO82_SSP2_FRM_OUT,
+	GPIO83_SSP2_TXD,
+	GPIO84_SSP2_RXD,
+
+	/* PC Card */
+	GPIO48_nPOE,
+	GPIO49_nPWE,
+	GPIO50_nPIOR,
+	GPIO51_nPIOW,
+	GPIO52_nPCE_1,
+	GPIO53_nPCE_2,
+	GPIO54_nPSKTSEL,
+	GPIO55_nPREG,
+	GPIO56_nPWAIT,
+	GPIO57_nIOIS16,
+
+	/* SDRAM and local bus */
+	GPIO15_nCS_1,
+	GPIO78_nCS_2,
+	GPIO79_nCS_3,
+	GPIO80_nCS_4,
+	GPIO33_nCS_5,
+	GPIO18_RDY,
+
+	/* GPIO */
+	GPIO0_GPIO	| WAKEUP_ON_EDGE_BOTH,
+	GPIO9_GPIO,				/* PC card reset */
+
+	/* NAND controls */
+	GPIO5_GPIO	| MFP_LPM_DRIVE_HIGH,	/* NAND CE# */
+	GPIO4_GPIO	| MFP_LPM_DRIVE_LOW,	/* NAND ALE */
+	GPIO3_GPIO	| MFP_LPM_DRIVE_LOW,	/* NAND CLE */
+	GPIO10_GPIO,				/* NAND Ready/Busy */
+
+	/* interrupts */
+	GPIO22_GPIO,	/* DM9000 interrupt */
+};
+
+#if defined(CONFIG_SPI_PXA2XX)
+static struct pxa2xx_spi_master pxa_ssp_master_info = {
+	.num_chipselect	= 1,
+};
+
+static struct spi_board_info spi_board_info[] __initdata = {
+	[0] = {
+		.modalias	= "rtc-max6902",
+		.max_speed_hz	= 1000000,
+		.bus_num	= 1,
+		.chip_select	= 0,
+	},
+};
+
+static void __init cmx255_init_rtc(void)
+{
+	pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
+	spi_register_board_info(ARRAY_AND_SIZE(spi_board_info));
+}
+#else
+static inline void cmx255_init_rtc(void) {}
+#endif
+
+void __init cmx255_init(void)
+{
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx255_pin_config));
+
+	cmx255_init_rtc();
+}
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c
index b6e93ecbf9da..3156b25f6e9d 100644
--- a/arch/arm/mach-pxa/cm-x2xx-pci.c
+++ b/arch/arm/mach-pxa/cm-x2xx-pci.c
@@ -131,7 +131,11 @@ static int __init cmx2xx_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 	if (slot == 9)
 		return IT8152_PCI_INTA;
 
-	/* SB-x270 Ethernet */
+	/* CM-x255 Onboard Ethernet */
+	if (slot == 15)
+		return IT8152_PCI_INTC;
+
+	/* SB-x2xx Ethernet */
 	if (slot == 16)
 		return IT8152_PCI_INTA;
 
diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
index cb16eb5bac8f..0b3ce3b6d896 100644
--- a/arch/arm/mach-pxa/cm-x2xx.c
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -32,6 +32,7 @@
 #include "generic.h"
 #include "cm-x2xx-pci.h"
 
+extern void cmx255_init(void);
 extern void cmx270_init(void);
 
 /* virtual addresses for statically mapped regions */
@@ -39,19 +40,43 @@ extern void cmx270_init(void);
 #define CMX2XX_IT8152_VIRT	(CMX2XX_VIRT_BASE)
 
 /* physical address if local-bus attached devices */
+#define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
 #define CMX270_DM9000_PHYS_BASE	(PXA_CS1_PHYS + (6 << 22))
 
 /* leds */
+#define CMX255_GPIO_RED		(27)
+#define CMX255_GPIO_GREEN	(32)
 #define CMX270_GPIO_RED		(93)
 #define CMX270_GPIO_GREEN	(94)
 
 /* GPIO IRQ usage */
+#define GPIO22_ETHIRQ		(22)
 #define GPIO10_ETHIRQ		(10)
+#define CMX255_GPIO_IT8152_IRQ	(0)
 #define CMX270_GPIO_IT8152_IRQ	(22)
 
+#define CMX255_ETHIRQ		IRQ_GPIO(GPIO22_ETHIRQ)
 #define CMX270_ETHIRQ		IRQ_GPIO(GPIO10_ETHIRQ)
 
 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+static struct resource cmx255_dm9000_resource[] = {
+	[0] = {
+		.start = CMX255_DM9000_PHYS_BASE,
+		.end   = CMX255_DM9000_PHYS_BASE + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = CMX255_DM9000_PHYS_BASE + 4,
+		.end   = CMX255_DM9000_PHYS_BASE + 4 + 500,
+		.flags = IORESOURCE_MEM,
+	},
+	[2] = {
+		.start = CMX255_ETHIRQ,
+		.end   = CMX255_ETHIRQ,
+		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	}
+};
+
 static struct resource cmx270_dm9000_resource[] = {
 	[0] = {
 		.start = CMX270_DM9000_PHYS_BASE,
@@ -85,7 +110,10 @@ static struct platform_device cmx2xx_dm9000_device = {
 
 static void __init cmx2xx_init_dm9000(void)
 {
-	cmx2xx_dm9000_device.resource = cmx270_dm9000_resource,
+	if (cpu_is_pxa25x())
+		cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
+	else
+		cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
 	platform_device_register(&cmx2xx_dm9000_device);
 }
 #else
@@ -137,8 +165,13 @@ static struct platform_device cmx2xx_led_device = {
 
 static void __init cmx2xx_init_leds(void)
 {
-	cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
-	cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
+	if (cpu_is_pxa25x()) {
+		cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
+		cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
+	} else {
+		cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
+		cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
+	}
 	platform_device_register(&cmx2xx_led_device);
 }
 #else
@@ -437,7 +470,10 @@ static void __init cmx2xx_init(void)
 {
 	cmx2xx_pm_init();
 
-	cmx270_init();
+	if (cpu_is_pxa25x())
+		cmx255_init();
+	else
+		cmx270_init();
 
 	cmx2xx_init_dm9000();
 	cmx2xx_init_display();
@@ -450,7 +486,13 @@ static void __init cmx2xx_init_irq(void)
 {
 	pxa27x_init_irq();
 
-	cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
+	if (cpu_is_pxa25x()) {
+		pxa25x_init_irq();
+		cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
+	} else {
+		pxa27x_init_irq();
+		cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
+	}
 }
 
 #ifdef CONFIG_PCI
diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c
index 9eba3f04783a..fa129c09bca8 100644
--- a/drivers/mtd/nand/cmx270_nand.c
+++ b/drivers/mtd/nand/cmx270_nand.c
@@ -156,7 +156,7 @@ static int cmx270_init(void)
 	int mtd_parts_nb = 0;
 	int ret;
 
-	if (!machine_is_armcore())
+	if (!(machine_is_armcore() && cpu_is_pxa27x()))
 		return -ENODEV;
 
 	ret = gpio_request(GPIO_NAND_CS, "NAND CS");