[ARM] 5103/2: CM-X270: update core platform support
Convert CM-X270 pin configuration to use MFP tables.
Make device initialization dependent on respective driver CONFIG_ value (like
in zylonite).
Cleanup includes
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c
index b3c3fd7..402e807 100644
--- a/arch/arm/mach-pxa/cm-x270.c
+++ b/arch/arm/mach-pxa/cm-x270.c
@@ -1,7 +1,7 @@
/*
* linux/arch/arm/mach-pxa/cm-x270.c
*
- * Copyright (C) 2007 CompuLab, Ltd.
+ * Copyright (C) 2007, 2008 CompuLab, Ltd.
* Mike Rapoport <mike@compulab.co.il>
*
* This program is free software; you can redistribute it and/or modify
@@ -9,44 +9,156 @@
* published by the Free Software Foundation.
*/
-#include <linux/types.h>
-#include <linux/pm.h>
-#include <linux/fb.h>
#include <linux/platform_device.h>
-#include <linux/irq.h>
#include <linux/sysdev.h>
-#include <linux/io.h>
-#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
#include <linux/dm9000.h>
#include <linux/rtc-v3020.h>
-#include <linux/serial_8250.h>
-
#include <video/mbxfb.h>
+#include <linux/leds.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <asm/mach/map.h>
-#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-regs.h>
-#include <asm/arch/pxa2xx-gpio.h>
+#include <asm/arch/mfp-pxa27x.h>
+#include <asm/arch/pxa-regs.h>
#include <asm/arch/audio.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/ohci.h>
#include <asm/arch/mmc.h>
#include <asm/arch/bitfield.h>
-#include <asm/arch/cm-x270.h>
#include <asm/hardware/it8152.h>
#include "generic.h"
#include "cm-x270-pci.h"
+/* virtual addresses for statically mapped regions */
+#define CMX270_VIRT_BASE (0xe8000000)
+#define CMX270_IT8152_VIRT (CMX270_VIRT_BASE)
+
#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
#define DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
-static struct resource cmx270_dm9k_resource[] = {
+/* GPIO IRQ usage */
+#define GPIO10_ETHIRQ (10)
+#define GPIO22_IT8152_IRQ (22)
+#define GPIO83_MMC_IRQ (83)
+#define GPIO95_GFXIRQ (95)
+
+#define CMX270_ETHIRQ IRQ_GPIO(GPIO10_ETHIRQ)
+#define CMX270_IT8152_IRQ IRQ_GPIO(GPIO22_IT8152_IRQ)
+#define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ)
+#define CMX270_GFXIRQ IRQ_GPIO(GPIO95_GFXIRQ)
+
+/* MMC power enable */
+#define GPIO105_MMC_POWER (105)
+
+static unsigned long cmx270_pin_config[] = {
+ /* AC'97 */
+ GPIO28_AC97_BITCLK,
+ GPIO29_AC97_SDATA_IN_0,
+ GPIO30_AC97_SDATA_OUT,
+ GPIO31_AC97_SYNC,
+ GPIO98_AC97_SYSCLK,
+ GPIO113_AC97_nRESET,
+
+ /* BTUART */
+ GPIO42_BTUART_RXD,
+ GPIO43_BTUART_TXD,
+ GPIO44_BTUART_CTS,
+ GPIO45_BTUART_RTS,
+
+ /* STUART */
+ GPIO46_STUART_RXD,
+ GPIO47_STUART_TXD,
+
+ /* MCI controller */
+ GPIO32_MMC_CLK,
+ GPIO112_MMC_CMD,
+ GPIO92_MMC_DAT_0,
+ GPIO109_MMC_DAT_1,
+ GPIO110_MMC_DAT_2,
+ GPIO111_MMC_DAT_3,
+
+ /* 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,
+
+ /* I2C */
+ GPIO117_I2C_SCL,
+ GPIO118_I2C_SDA,
+
+ /* SSP1 */
+ GPIO23_SSP1_SCLK,
+ GPIO24_SSP1_SFRM,
+ GPIO25_SSP1_TXD,
+ GPIO26_SSP1_RXD,
+
+ /* SSP2 */
+ GPIO19_SSP2_SCLK,
+ GPIO14_SSP2_SFRM,
+ GPIO87_SSP2_TXD,
+ GPIO88_SSP2_RXD,
+
+ /* PC Card */
+ GPIO48_nPOE,
+ GPIO49_nPWE,
+ GPIO50_nPIOR,
+ GPIO51_nPIOW,
+ GPIO85_nPCE_1,
+ GPIO54_nPCE_2,
+ 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,
+ GPIO49_nPWE,
+ GPIO18_RDY,
+
+ /* GPIO */
+ GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
+ GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */
+ GPIO53_GPIO, /* PC card reset */
+
+ /* NAND controls */
+ GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
+ GPIO89_GPIO, /* NAND Ready/Busy */
+
+ /* interrupts */
+ GPIO10_GPIO, /* DM9000 interrupt */
+ GPIO83_GPIO, /* MMC card detect */
+};
+
+#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+static struct resource cmx270_dm9000_resource[] = {
[0] = {
.start = DM9000_PHYS_BASE,
.end = DM9000_PHYS_BASE + 4,
@@ -60,35 +172,49 @@
[2] = {
.start = CMX270_ETHIRQ,
.end = CMX270_ETHIRQ,
- .flags = IORESOURCE_IRQ,
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
}
};
-/* for the moment we limit ourselves to 32bit IO until some
- * better IO routines can be written and tested
- */
-static struct dm9000_plat_data cmx270_dm9k_platdata = {
+static struct dm9000_plat_data cmx270_dm9000_platdata = {
.flags = DM9000_PLATF_32BITONLY,
};
-/* Ethernet device */
-static struct platform_device cmx270_device_dm9k = {
+static struct platform_device cmx270_dm9000_device = {
.name = "dm9000",
.id = 0,
- .num_resources = ARRAY_SIZE(cmx270_dm9k_resource),
- .resource = cmx270_dm9k_resource,
+ .num_resources = ARRAY_SIZE(cmx270_dm9000_resource),
+ .resource = cmx270_dm9000_resource,
.dev = {
- .platform_data = &cmx270_dm9k_platdata,
+ .platform_data = &cmx270_dm9000_platdata,
}
};
-/* touchscreen controller */
+static void __init cmx270_init_dm9000(void)
+{
+ platform_device_register(&cmx270_dm9000_device);
+}
+#else
+static inline void cmx270_init_dm9000(void) {}
+#endif
+
+/* UCB1400 touchscreen controller */
+#if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
static struct platform_device cmx270_ts_device = {
.name = "ucb1400_ts",
.id = -1,
};
-/* RTC */
+static void __init cmx270_init_touchscreen(void)
+{
+ platform_device_register(&cmx270_ts_device);
+}
+#else
+static inline void cmx270_init_touchscreen(void) {}
+#endif
+
+/* V3020 RTC */
+#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
static struct resource cmx270_v3020_resource[] = {
[0] = {
.start = RTC_PHYS_BASE,
@@ -111,28 +237,67 @@
}
};
-/*
- * CM-X270 LEDs
- */
-static struct platform_device cmx270_led_device = {
- .name = "cm-x270-led",
- .id = -1,
+static void __init cmx270_init_rtc(void)
+{
+ platform_device_register(&cmx270_rtc_device);
+}
+#else
+static inline void cmx270_init_rtc(void) {}
+#endif
+
+/* CM-X270 LEDs */
+#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
+static struct gpio_led cmx270_leds[] = {
+ [0] = {
+ .name = "cm-x270:red",
+ .default_trigger = "nand-disk",
+ .gpio = 93,
+ .active_low = 1,
+ },
+ [1] = {
+ .name = "cm-x270:green",
+ .default_trigger = "heartbeat",
+ .gpio = 94,
+ .active_low = 1,
+ },
};
+static struct gpio_led_platform_data cmx270_gpio_led_pdata = {
+ .num_leds = ARRAY_SIZE(cmx270_leds),
+ .leds = cmx270_leds,
+};
+
+static struct platform_device cmx270_led_device = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &cmx270_gpio_led_pdata,
+ },
+};
+
+static void __init cmx270_init_leds(void)
+{
+ platform_device_register(&cmx270_led_device);
+}
+#else
+static inline void cmx270_init_leds(void) {}
+#endif
+
/* 2700G graphics */
+#if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
static u64 fb_dma_mask = ~(u64)0;
static struct resource cmx270_2700G_resource[] = {
/* frame buffer memory including ODFB and External SDRAM */
[0] = {
- .start = MARATHON_PHYS,
- .end = MARATHON_PHYS + 0x02000000,
+ .start = PXA_CS2_PHYS,
+ .end = PXA_CS2_PHYS + 0x01ffffff,
.flags = IORESOURCE_MEM,
},
/* Marathon registers */
[1] = {
- .start = MARATHON_PHYS + 0x03fe0000,
- .end = MARATHON_PHYS + 0x03ffffff,
+ .start = PXA_CS2_PHYS + 0x03fe0000,
+ .end = PXA_CS2_PHYS + 0x03ffffff,
.flags = IORESOURCE_MEM,
},
};
@@ -200,43 +365,15 @@
.id = -1,
};
-static u64 ata_dma_mask = ~(u64)0;
+static void __init cmx270_init_2700G(void)
+{
+ platform_device_register(&cmx270_2700G);
+}
+#else
+static inline void cmx270_init_2700G(void) {}
+#endif
-static struct platform_device cmx270_ata = {
- .name = "pata_cm_x270",
- .id = -1,
- .dev = {
- .dma_mask = &ata_dma_mask,
- .coherent_dma_mask = 0xffffffff,
- },
-};
-
-/* platform devices */
-static struct platform_device *platform_devices[] __initdata = {
- &cmx270_device_dm9k,
- &cmx270_rtc_device,
- &cmx270_2700G,
- &cmx270_led_device,
- &cmx270_ts_device,
- &cmx270_ata,
-};
-
-/* Map PCI companion and IDE/General Purpose CS statically */
-static struct map_desc cmx270_io_desc[] __initdata = {
- [0] = { /* IDE/general purpose space */
- .virtual = CMX270_IDE104_VIRT,
- .pfn = __phys_to_pfn(CMX270_IDE104_PHYS),
- .length = SZ_64M - SZ_8M,
- .type = MT_DEVICE
- },
- [1] = { /* PCI bridge */
- .virtual = CMX270_IT8152_VIRT,
- .pfn = __phys_to_pfn(CMX270_IT8152_PHYS),
- .length = SZ_64M,
- .type = MT_DEVICE
- },
-};
-
+#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
/*
Display definitions
keep these for backwards compatibility, although symbolic names (as
@@ -446,7 +583,16 @@
*/
__setup("monitor=", cmx270_set_display);
+static void __init cmx270_init_display(void)
+{
+ set_pxa_fb_info(cmx270_display);
+}
+#else
+static inline void cmx270_init_display(void) {}
+#endif
+
/* PXA27x OHCI controller setup */
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static int cmx270_ohci_init(struct device *dev)
{
/* Set the Power Control Polarity Low */
@@ -461,35 +607,37 @@
.init = cmx270_ohci_init,
};
+static void __init cmx270_init_ohci(void)
+{
+ pxa_set_ohci_info(&cmx270_ohci_platform_data);
+}
+#else
+static inline void cmx270_init_ohci(void) {}
+#endif
+#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
static int cmx270_mci_init(struct device *dev,
irq_handler_t cmx270_detect_int,
void *data)
{
int err;
- /*
- * setup GPIO for PXA27x MMC controller
- */
- pxa_gpio_mode(GPIO32_MMCCLK_MD);
- pxa_gpio_mode(GPIO112_MMCCMD_MD);
- pxa_gpio_mode(GPIO92_MMCDAT0_MD);
- pxa_gpio_mode(GPIO109_MMCDAT1_MD);
- pxa_gpio_mode(GPIO110_MMCDAT2_MD);
- pxa_gpio_mode(GPIO111_MMCDAT3_MD);
+ err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power");
+ if (err) {
+ dev_warn(dev, "power gpio unavailable\n");
+ return err;
+ }
- /* SB-X270 uses GPIO105 as SD power enable */
- pxa_gpio_mode(105 | GPIO_OUT);
-
- /* card detect IRQ on GPIO 83 */
- pxa_gpio_mode(IRQ_TO_GPIO(CMX270_MMC_IRQ));
+ gpio_direction_output(GPIO105_MMC_POWER, 0);
err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int,
IRQF_DISABLED | IRQF_TRIGGER_FALLING,
"MMC card detect", data);
- if (err)
- printk(KERN_ERR "cmx270_mci_init: MMC/SD: can't"
- " request MMC card detect IRQ\n");
+ if (err) {
+ gpio_free(GPIO105_MMC_POWER);
+ dev_err(dev, "cmx270_mci_init: MMC/SD: can't"
+ " request MMC card detect IRQ\n");
+ }
return err;
}
@@ -499,17 +647,18 @@
struct pxamci_platform_data *p_d = dev->platform_data;
if ((1 << vdd) & p_d->ocr_mask) {
- printk(KERN_DEBUG "%s: on\n", __func__);
- GPCR(105) = GPIO_bit(105);
+ dev_dbg(dev, "power on\n");
+ gpio_set_value(GPIO105_MMC_POWER, 0);
} else {
- GPSR(105) = GPIO_bit(105);
- printk(KERN_DEBUG "%s: off\n", __func__);
+ gpio_set_value(GPIO105_MMC_POWER, 1);
+ dev_dbg(dev, "power off\n");
}
}
static void cmx270_mci_exit(struct device *dev, void *data)
{
free_irq(CMX270_MMC_IRQ, data);
+ gpio_free(GPIO105_MMC_POWER);
}
static struct pxamci_platform_data cmx270_mci_platform_data = {
@@ -519,6 +668,14 @@
.exit = cmx270_mci_exit,
};
+static void __init cmx270_init_mmc(void)
+{
+ pxa_set_mci_info(&cmx270_mci_platform_data);
+}
+#else
+static inline void cmx270_init_mmc(void) {}
+#endif
+
#ifdef CONFIG_PM
static unsigned long sleep_save_msc[10];
@@ -580,53 +737,63 @@
static int __init cmx270_pm_init(void) { return 0; }
#endif
+#if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
+static void __init cmx270_init_ac97(void)
+{
+ pxa_set_ac97_info(NULL);
+}
+#else
+static inline void cmx270_init_ac97(void) {}
+#endif
+
static void __init cmx270_init(void)
{
cmx270_pm_init();
- set_pxa_fb_info(cmx270_display);
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
- /* register CM-X270 platform devices */
- platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
- pxa_set_ac97_info(NULL);
-
- /* set MCI and OHCI platform parameters */
- pxa_set_mci_info(&cmx270_mci_platform_data);
- pxa_set_ohci_info(&cmx270_ohci_platform_data);
-
- /* This enables the STUART */
- pxa_gpio_mode(GPIO46_STRXD_MD);
- pxa_gpio_mode(GPIO47_STTXD_MD);
-
- /* This enables the BTUART */
- pxa_gpio_mode(GPIO42_BTRXD_MD);
- pxa_gpio_mode(GPIO43_BTTXD_MD);
- pxa_gpio_mode(GPIO44_BTCTS_MD);
- pxa_gpio_mode(GPIO45_BTRTS_MD);
+ cmx270_init_dm9000();
+ cmx270_init_rtc();
+ cmx270_init_display();
+ cmx270_init_mmc();
+ cmx270_init_ohci();
+ cmx270_init_ac97();
+ cmx270_init_touchscreen();
+ cmx270_init_leds();
+ cmx270_init_2700G();
}
static void __init cmx270_init_irq(void)
{
pxa27x_init_irq();
-
- cmx270_pci_init_irq();
-
- /* Setup interrupt for dm9000 */
- pxa_gpio_mode(IRQ_TO_GPIO(CMX270_ETHIRQ));
- set_irq_type(CMX270_ETHIRQ, IRQT_RISING);
-
- /* Setup interrupt for 2700G */
- pxa_gpio_mode(IRQ_TO_GPIO(CMX270_GFXIRQ));
- set_irq_type(CMX270_GFXIRQ, IRQT_FALLING);
+ cmx270_pci_init_irq(GPIO22_IT8152_IRQ);
}
+#ifdef CONFIG_PCI
+/* Map PCI companion statically */
+static struct map_desc cmx270_io_desc[] __initdata = {
+ [0] = { /* PCI bridge */
+ .virtual = CMX270_IT8152_VIRT,
+ .pfn = __phys_to_pfn(PXA_CS4_PHYS),
+ .length = SZ_64M,
+ .type = MT_DEVICE
+ },
+};
+
static void __init cmx270_map_io(void)
{
pxa_map_io();
iotable_init(cmx270_io_desc, ARRAY_SIZE(cmx270_io_desc));
-}
+ it8152_base_address = CMX270_IT8152_VIRT;
+}
+#else
+static void __init cmx270_map_io(void)
+{
+ pxa_map_io();
+}
+#endif
MACHINE_START(ARMCORE, "Compulab CM-x270")
.boot_params = 0xa0000100,