[ARM] 4576/1: CM-X270 machine support
This patch provides core support for CM-X270 platform.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
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
new file mode 100644
index 0000000..177664c
--- /dev/null
+++ b/arch/arm/mach-pxa/cm-x270.c
@@ -0,0 +1,645 @@
+/*
+ * linux/arch/arm/mach-pxa/cm-x270.c
+ *
+ * Copyright (C) 2007 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/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/dm9000.h>
+#include <linux/rtc-v3020.h>
+#include <linux/serial_8250.h>
+
+#include <video/mbxfb.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/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"
+
+#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
+#define DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
+
+static struct resource cmx270_dm9k_resource[] = {
+ [0] = {
+ .start = DM9000_PHYS_BASE,
+ .end = DM9000_PHYS_BASE + 4,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = DM9000_PHYS_BASE + 8,
+ .end = DM9000_PHYS_BASE + 8 + 500,
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
+ .start = CMX270_ETHIRQ,
+ .end = CMX270_ETHIRQ,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+/* 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 = {
+ .flags = DM9000_PLATF_32BITONLY,
+};
+
+/* Ethernet device */
+static struct platform_device cmx270_device_dm9k = {
+ .name = "dm9000",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(cmx270_dm9k_resource),
+ .resource = cmx270_dm9k_resource,
+ .dev = {
+ .platform_data = &cmx270_dm9k_platdata,
+ }
+};
+
+/* audio device */
+static struct platform_device cmx270_audio_device = {
+ .name = "pxa2xx-ac97",
+ .id = -1,
+};
+
+/* touchscreen controller */
+static struct platform_device cmx270_ts_device = {
+ .name = "ucb1400_ts",
+ .id = -1,
+};
+
+/* RTC */
+static struct resource cmx270_v3020_resource[] = {
+ [0] = {
+ .start = RTC_PHYS_BASE,
+ .end = RTC_PHYS_BASE + 4,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+struct v3020_platform_data cmx270_v3020_pdata = {
+ .leftshift = 16,
+};
+
+static struct platform_device cmx270_rtc_device = {
+ .name = "v3020",
+ .num_resources = ARRAY_SIZE(cmx270_v3020_resource),
+ .resource = cmx270_v3020_resource,
+ .id = -1,
+ .dev = {
+ .platform_data = &cmx270_v3020_pdata,
+ }
+};
+
+/*
+ * CM-X270 LEDs
+ */
+static struct platform_device cmx270_led_device = {
+ .name = "cm-x270-led",
+ .id = -1,
+};
+
+/* 2700G graphics */
+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,
+ .flags = IORESOURCE_MEM,
+ },
+ /* Marathon registers */
+ [1] = {
+ .start = MARATHON_PHYS + 0x03fe0000,
+ .end = MARATHON_PHYS + 0x03ffffff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static unsigned long save_lcd_regs[10];
+
+static int cmx270_marathon_probe(struct fb_info *fb)
+{
+ /* save PXA-270 pin settings before enabling 2700G */
+ save_lcd_regs[0] = GPDR1;
+ save_lcd_regs[1] = GPDR2;
+ save_lcd_regs[2] = GAFR1_U;
+ save_lcd_regs[3] = GAFR2_L;
+ save_lcd_regs[4] = GAFR2_U;
+
+ /* Disable PXA-270 on-chip controller driving pins */
+ GPDR1 &= ~(0xfc000000);
+ GPDR2 &= ~(0x00c03fff);
+ GAFR1_U &= ~(0xfff00000);
+ GAFR2_L &= ~(0x0fffffff);
+ GAFR2_U &= ~(0x0000f000);
+ return 0;
+}
+
+static int cmx270_marathon_remove(struct fb_info *fb)
+{
+ GPDR1 = save_lcd_regs[0];
+ GPDR2 = save_lcd_regs[1];
+ GAFR1_U = save_lcd_regs[2];
+ GAFR2_L = save_lcd_regs[3];
+ GAFR2_U = save_lcd_regs[4];
+ return 0;
+}
+
+static struct mbxfb_platform_data cmx270_2700G_data = {
+ .xres = {
+ .min = 240,
+ .max = 1200,
+ .defval = 640,
+ },
+ .yres = {
+ .min = 240,
+ .max = 1200,
+ .defval = 480,
+ },
+ .bpp = {
+ .min = 16,
+ .max = 32,
+ .defval = 16,
+ },
+ .memsize = 8*1024*1024,
+ .probe = cmx270_marathon_probe,
+ .remove = cmx270_marathon_remove,
+};
+
+static struct platform_device cmx270_2700G = {
+ .name = "mbx-fb",
+ .dev = {
+ .platform_data = &cmx270_2700G_data,
+ .dma_mask = &fb_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .num_resources = ARRAY_SIZE(cmx270_2700G_resource),
+ .resource = cmx270_2700G_resource,
+ .id = -1,
+};
+
+static u64 ata_dma_mask = ~(u64)0;
+
+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_audio_device,
+ &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
+ },
+};
+
+/*
+ Display definitions
+ keep these for backwards compatibility, although symbolic names (as
+ e.g. in lpd270.c) looks better
+*/
+#define MTYPE_STN320x240 0
+#define MTYPE_TFT640x480 1
+#define MTYPE_CRT640x480 2
+#define MTYPE_CRT800x600 3
+#define MTYPE_TFT320x240 6
+#define MTYPE_STN640x480 7
+
+static struct pxafb_mode_info generic_stn_320x240_mode = {
+ .pixclock = 76923,
+ .bpp = 8,
+ .xres = 320,
+ .yres = 240,
+ .hsync_len = 3,
+ .vsync_len = 2,
+ .left_margin = 3,
+ .upper_margin = 0,
+ .right_margin = 3,
+ .lower_margin = 0,
+ .sync = (FB_SYNC_HOR_HIGH_ACT |
+ FB_SYNC_VERT_HIGH_ACT),
+ .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_stn_320x240 = {
+ .modes = &generic_stn_320x240_mode,
+ .num_modes = 1,
+ .lccr0 = 0,
+ .lccr3 = (LCCR3_PixClkDiv(0x03) |
+ LCCR3_Acb(0xff) |
+ LCCR3_PCP),
+ .cmap_inverse = 0,
+ .cmap_static = 0,
+};
+
+static struct pxafb_mode_info generic_tft_640x480_mode = {
+ .pixclock = 38461,
+ .bpp = 8,
+ .xres = 640,
+ .yres = 480,
+ .hsync_len = 60,
+ .vsync_len = 2,
+ .left_margin = 70,
+ .upper_margin = 10,
+ .right_margin = 70,
+ .lower_margin = 5,
+ .sync = 0,
+ .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_tft_640x480 = {
+ .modes = &generic_tft_640x480_mode,
+ .num_modes = 1,
+ .lccr0 = (LCCR0_PAS),
+ .lccr3 = (LCCR3_PixClkDiv(0x01) |
+ LCCR3_Acb(0xff) |
+ LCCR3_PCP),
+ .cmap_inverse = 0,
+ .cmap_static = 0,
+};
+
+static struct pxafb_mode_info generic_crt_640x480_mode = {
+ .pixclock = 38461,
+ .bpp = 8,
+ .xres = 640,
+ .yres = 480,
+ .hsync_len = 63,
+ .vsync_len = 2,
+ .left_margin = 81,
+ .upper_margin = 33,
+ .right_margin = 16,
+ .lower_margin = 10,
+ .sync = (FB_SYNC_HOR_HIGH_ACT |
+ FB_SYNC_VERT_HIGH_ACT),
+ .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_crt_640x480 = {
+ .modes = &generic_crt_640x480_mode,
+ .num_modes = 1,
+ .lccr0 = (LCCR0_PAS),
+ .lccr3 = (LCCR3_PixClkDiv(0x01) |
+ LCCR3_Acb(0xff)),
+ .cmap_inverse = 0,
+ .cmap_static = 0,
+};
+
+static struct pxafb_mode_info generic_crt_800x600_mode = {
+ .pixclock = 28846,
+ .bpp = 8,
+ .xres = 800,
+ .yres = 600,
+ .hsync_len = 63,
+ .vsync_len = 2,
+ .left_margin = 26,
+ .upper_margin = 21,
+ .right_margin = 26,
+ .lower_margin = 11,
+ .sync = (FB_SYNC_HOR_HIGH_ACT |
+ FB_SYNC_VERT_HIGH_ACT),
+ .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_crt_800x600 = {
+ .modes = &generic_crt_800x600_mode,
+ .num_modes = 1,
+ .lccr0 = (LCCR0_PAS),
+ .lccr3 = (LCCR3_PixClkDiv(0x02) |
+ LCCR3_Acb(0xff)),
+ .cmap_inverse = 0,
+ .cmap_static = 0,
+};
+
+static struct pxafb_mode_info generic_tft_320x240_mode = {
+ .pixclock = 134615,
+ .bpp = 16,
+ .xres = 320,
+ .yres = 240,
+ .hsync_len = 63,
+ .vsync_len = 7,
+ .left_margin = 75,
+ .upper_margin = 0,
+ .right_margin = 15,
+ .lower_margin = 15,
+ .sync = 0,
+ .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_tft_320x240 = {
+ .modes = &generic_tft_320x240_mode,
+ .num_modes = 1,
+ .lccr0 = (LCCR0_PAS),
+ .lccr3 = (LCCR3_PixClkDiv(0x06) |
+ LCCR3_Acb(0xff) |
+ LCCR3_PCP),
+ .cmap_inverse = 0,
+ .cmap_static = 0,
+};
+
+static struct pxafb_mode_info generic_stn_640x480_mode = {
+ .pixclock = 57692,
+ .bpp = 8,
+ .xres = 640,
+ .yres = 480,
+ .hsync_len = 4,
+ .vsync_len = 2,
+ .left_margin = 10,
+ .upper_margin = 5,
+ .right_margin = 10,
+ .lower_margin = 5,
+ .sync = (FB_SYNC_HOR_HIGH_ACT |
+ FB_SYNC_VERT_HIGH_ACT),
+ .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_stn_640x480 = {
+ .modes = &generic_stn_640x480_mode,
+ .num_modes = 1,
+ .lccr0 = 0,
+ .lccr3 = (LCCR3_PixClkDiv(0x02) |
+ LCCR3_Acb(0xff)),
+ .cmap_inverse = 0,
+ .cmap_static = 0,
+};
+
+static struct pxafb_mach_info *cmx270_display = &generic_crt_640x480;
+
+static int __init cmx270_set_display(char *str)
+{
+ int disp_type = simple_strtol(str, NULL, 0);
+ switch (disp_type) {
+ case MTYPE_STN320x240:
+ cmx270_display = &generic_stn_320x240;
+ break;
+ case MTYPE_TFT640x480:
+ cmx270_display = &generic_tft_640x480;
+ break;
+ case MTYPE_CRT640x480:
+ cmx270_display = &generic_crt_640x480;
+ break;
+ case MTYPE_CRT800x600:
+ cmx270_display = &generic_crt_800x600;
+ break;
+ case MTYPE_TFT320x240:
+ cmx270_display = &generic_tft_320x240;
+ break;
+ case MTYPE_STN640x480:
+ cmx270_display = &generic_stn_640x480;
+ break;
+ default: /* fallback to CRT 640x480 */
+ cmx270_display = &generic_crt_640x480;
+ break;
+ }
+ return 1;
+}
+
+/*
+ This should be done really early to get proper configuration for
+ frame buffer.
+ Indeed, pxafb parameters can be used istead, but CM-X270 bootloader
+ has limitied line length for kernel command line, and also it will
+ break compatibitlty with proprietary releases already in field.
+*/
+__setup("monitor=", cmx270_set_display);
+
+/* PXA27x OHCI controller setup */
+static int cmx270_ohci_init(struct device *dev)
+{
+ /* Set the Power Control Polarity Low */
+ UHCHR = (UHCHR | UHCHR_PCPL) &
+ ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE);
+
+ return 0;
+}
+
+static struct pxaohci_platform_data cmx270_ohci_platform_data = {
+ .port_mode = PMM_PERPORT_MODE,
+ .init = cmx270_ohci_init,
+};
+
+
+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);
+
+ /* 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));
+ set_irq_type(CMX270_MMC_IRQ, IRQT_FALLING);
+
+ 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");
+ return -1;
+ }
+
+ return 0;
+}
+
+static void cmx270_mci_setpower(struct device *dev, unsigned int vdd)
+{
+ struct pxamci_platform_data *p_d = dev->platform_data;
+
+ if ((1 << vdd) & p_d->ocr_mask) {
+ printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
+ GPCR(105) = GPIO_bit(105);
+ } else {
+ GPSR(105) = GPIO_bit(105);
+ printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
+ }
+}
+
+static void cmx270_mci_exit(struct device *dev, void *data)
+{
+ free_irq(CMX270_MMC_IRQ, data);
+}
+
+static struct pxamci_platform_data cmx270_mci_platform_data = {
+ .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
+ .init = cmx270_mci_init,
+ .setpower = cmx270_mci_setpower,
+ .exit = cmx270_mci_exit,
+};
+
+#ifdef CONFIG_PM
+static unsigned long sleep_save_msc[10];
+
+static int cmx270_suspend(struct sys_device *dev, pm_message_t state)
+{
+ cmx270_pci_suspend();
+
+ /* save MSC registers */
+ sleep_save_msc[0] = MSC0;
+ sleep_save_msc[1] = MSC1;
+ sleep_save_msc[2] = MSC2;
+
+ /* setup power saving mode registers */
+ PCFR = 0x0;
+ PSLR = 0xff400000;
+ PMCR = 0x00000005;
+ PWER = 0x80000000;
+ PFER = 0x00000000;
+ PRER = 0x00000000;
+ PGSR0 = 0xC0018800;
+ PGSR1 = 0x004F0002;
+ PGSR2 = 0x6021C000;
+ PGSR3 = 0x00020000;
+
+ return 0;
+}
+
+static int cmx270_resume(struct sys_device *dev)
+{
+ cmx270_pci_resume();
+
+ /* restore MSC registers */
+ MSC0 = sleep_save_msc[0];
+ MSC1 = sleep_save_msc[1];
+ MSC2 = sleep_save_msc[2];
+
+ return 0;
+}
+
+static struct sysdev_class cmx270_pm_sysclass = {
+ set_kset_name("pm"),
+ .resume = cmx270_resume,
+ .suspend = cmx270_suspend,
+};
+
+static struct sys_device cmx270_pm_device = {
+ .cls = &cmx270_pm_sysclass,
+};
+
+static int __init cmx270_pm_init(void)
+{
+ int error;
+ error = sysdev_class_register(&cmx270_pm_sysclass);
+ if (error == 0)
+ error = sysdev_register(&cmx270_pm_device);
+ return error;
+}
+#else
+static int __init cmx270_pm_init(void) { return 0; }
+#endif
+
+static void __init cmx270_init(void)
+{
+ cmx270_pm_init();
+
+ set_pxa_fb_info(cmx270_display);
+
+ /* register CM-X270 platform devices */
+ platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+
+ /* 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);
+}
+
+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);
+}
+
+static void __init cmx270_map_io(void)
+{
+ pxa_map_io();
+ iotable_init(cmx270_io_desc, ARRAY_SIZE(cmx270_io_desc));
+}
+
+
+MACHINE_START(ARMCORE, "Compulab CM-x270")
+ .boot_params = 0xa0000100,
+ .phys_io = 0x40000000,
+ .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
+ .map_io = cmx270_map_io,
+ .init_irq = cmx270_init_irq,
+ .timer = &pxa_timer,
+ .init_machine = cmx270_init,
+MACHINE_END