[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>

5 files changed, 198 insertions, 8 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