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author | Mike Rapoport <mike@compulab.co.il> | 2008-10-05 10:26:10 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-07 12:05:06 +0100 |
commit | 4adc5fb6733213ab68750f722630d1b9d5655bc1 (patch) | |
tree | beca3086542b44526f3430376a85e588944d9595 /arch/arm/mach-pxa/cm-x270.c | |
parent | da591937ba8c3a98ced845247859693a27543863 (diff) | |
download | kernel_samsung_smdk4412-4adc5fb6733213ab68750f722630d1b9d5655bc1.zip kernel_samsung_smdk4412-4adc5fb6733213ab68750f722630d1b9d5655bc1.tar.gz kernel_samsung_smdk4412-4adc5fb6733213ab68750f722630d1b9d5655bc1.tar.bz2 |
[ARM] 5281/1: pxa: split cm-x2xx.c to cm-x2xx.c and cm-x270.c
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>
Diffstat (limited to 'arch/arm/mach-pxa/cm-x270.c')
-rw-r--r-- | arch/arm/mach-pxa/cm-x270.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c new file mode 100644 index 0000000..102a431 --- /dev/null +++ b/arch/arm/mach-pxa/cm-x270.c @@ -0,0 +1,351 @@ +/* + * linux/arch/arm/mach-pxa/cm-x270.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/sysdev.h> +#include <linux/irq.h> +#include <linux/gpio.h> + +#include <linux/rtc-v3020.h> +#include <video/mbxfb.h> + +#include <mach/mfp-pxa27x.h> +#include <mach/ohci.h> +#include <mach/mmc.h> + +#include "generic.h" + +/* physical address if local-bus attached devices */ +#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22)) + +/* GPIO IRQ usage */ +#define GPIO83_MMC_IRQ (83) + +#define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ) + +/* 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 */ +}; + +/* 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, + .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, + } +}; + +static void __init cmx270_init_rtc(void) +{ + platform_device_register(&cmx270_rtc_device); +} +#else +static inline void cmx2xx_init_rtc(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 = PXA_CS2_PHYS, + .end = PXA_CS2_PHYS + 0x01ffffff, + .flags = IORESOURCE_MEM, + }, + /* Marathon registers */ + [1] = { + .start = PXA_CS2_PHYS + 0x03fe0000, + .end = PXA_CS2_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 void __init cmx270_init_2700G(void) +{ + platform_device_register(&cmx270_2700G); +} +#else +static inline void cmx270_init_2700G(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 */ + 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 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; + + err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power"); + if (err) { + dev_warn(dev, "power gpio unavailable\n"); + return err; + } + + 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) { + gpio_free(GPIO105_MMC_POWER); + dev_err(dev, "cmx270_mci_init: MMC/SD: can't" + " request MMC card detect IRQ\n"); + } + + return err; +} + +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) { + dev_dbg(dev, "power on\n"); + gpio_set_value(GPIO105_MMC_POWER, 0); + } else { + 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 = { + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, + .init = cmx270_mci_init, + .setpower = cmx270_mci_setpower, + .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 + +void __init cmx270_init(void) +{ + pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config)); + + cmx270_init_rtc(); + cmx270_init_mmc(); + cmx270_init_ohci(); + cmx270_init_2700G(); +} |