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devices.c

/*
* Freescale STMP37XX/STMP378X platform devices
*
* Embedded Alley Solutions, Inc <source@embeddedalley.com>
*
* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
*/

/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>

#include <mach/dma.h>
#include <mach/platform.h>
#include <mach/stmp3xxx.h>
#include <mach/regs-lcdif.h>
#include <mach/regs-uartapp.h>
#include <mach/regs-gpmi.h>
#include <mach/regs-usbctrl.h>
#include <mach/regs-ssp.h>
#include <mach/regs-rtc.h>

static u64 common_dmamask = DMA_BIT_MASK(32);

static struct resource appuart_resources[] = {
      {
            .start = IRQ_UARTAPP_INTERNAL,
            .end = IRQ_UARTAPP_INTERNAL,
            .flags = IORESOURCE_IRQ,
      }, {
            .start = IRQ_UARTAPP_RX_DMA,
            .end = IRQ_UARTAPP_RX_DMA,
            .flags = IORESOURCE_IRQ,
      }, {
            .start = IRQ_UARTAPP_TX_DMA,
            .end = IRQ_UARTAPP_TX_DMA,
            .flags = IORESOURCE_IRQ,
      }, {
            .start = REGS_UARTAPP1_PHYS,
            .end = REGS_UARTAPP1_PHYS + REGS_UARTAPP_SIZE,
            .flags = IORESOURCE_MEM,
      }, {
            /* Rx DMA channel */
            .start = STMP3XXX_DMA(6, STMP3XXX_BUS_APBX),
            .end = STMP3XXX_DMA(6, STMP3XXX_BUS_APBX),
            .flags = IORESOURCE_DMA,
      }, {
            /* Tx DMA channel */
            .start = STMP3XXX_DMA(7, STMP3XXX_BUS_APBX),
            .end = STMP3XXX_DMA(7, STMP3XXX_BUS_APBX),
            .flags = IORESOURCE_DMA,
      },
};

struct platform_device stmp3xxx_appuart = {
      .name = "stmp3xxx-appuart",
      .id = 0,
      .resource = appuart_resources,
      .num_resources = ARRAY_SIZE(appuart_resources),
      .dev = {
            .dma_mask   = &common_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
};

struct platform_device stmp3xxx_watchdog = {
      .name   = "stmp3xxx_wdt",
      .id     = -1,
};

static struct resource ts_resource[] = {
      {
            .flags  = IORESOURCE_IRQ,
            .start  = IRQ_TOUCH_DETECT,
            .end    = IRQ_TOUCH_DETECT,
      }, {
            .flags  = IORESOURCE_IRQ,
            .start  = IRQ_LRADC_CH5,
            .end    = IRQ_LRADC_CH5,
      },
};

struct platform_device stmp3xxx_touchscreen = {
      .name       = "stmp3xxx_ts",
      .id         = -1,
      .resource   = ts_resource,
      .num_resources    = ARRAY_SIZE(ts_resource),
};

/*
* Keypad device
*/
struct platform_device stmp3xxx_keyboard = {
      .name       = "stmp3xxx-keyboard",
      .id         = -1,
};

static struct resource gpmi_resources[] = {
      {
            .flags = IORESOURCE_MEM,
            .start = REGS_GPMI_PHYS,
            .end = REGS_GPMI_PHYS + REGS_GPMI_SIZE,
      }, {
            .flags = IORESOURCE_IRQ,
            .start = IRQ_GPMI_DMA,
            .end = IRQ_GPMI_DMA,
      }, {
            .flags = IORESOURCE_DMA,
            .start = STMP3XXX_DMA(4, STMP3XXX_BUS_APBH),
            .end = STMP3XXX_DMA(8, STMP3XXX_BUS_APBH),
      },
};

struct platform_device stmp3xxx_gpmi = {
      .name = "gpmi",
      .id = -1,
      .dev  = {
            .dma_mask   = &common_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
      .resource = gpmi_resources,
      .num_resources = ARRAY_SIZE(gpmi_resources),
};

static struct resource mmc1_resource[] = {
      {
            .flags      = IORESOURCE_MEM,
            .start      = REGS_SSP1_PHYS,
            .end  = REGS_SSP1_PHYS + REGS_SSP_SIZE,
      }, {
            .flags      = IORESOURCE_DMA,
            .start      = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH),
            .end  = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH),
      }, {
            .flags      = IORESOURCE_IRQ,
            .start      = IRQ_SSP1_DMA,
            .end  = IRQ_SSP1_DMA,
      }, {
            .flags      = IORESOURCE_IRQ,
            .start      = IRQ_SSP_ERROR,
            .end  = IRQ_SSP_ERROR,
      },
};

struct platform_device stmp3xxx_mmc = {
      .name = "stmp3xxx-mmc",
      .id   = 1,
      .dev  = {
            .dma_mask   = &common_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
      .resource = mmc1_resource,
      .num_resources = ARRAY_SIZE(mmc1_resource),
};

static struct resource usb_resources[] = {
      {
            .start      = REGS_USBCTRL_PHYS,
            .end  = REGS_USBCTRL_PHYS + SZ_4K,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_USB_CTRL,
            .end  = IRQ_USB_CTRL,
            .flags      = IORESOURCE_IRQ,
      },
};

struct platform_device stmp3xxx_udc = {
      .name       = "fsl-usb2-udc",
      .id         = -1,
      .dev        = {
            .dma_mask         = &common_dmamask,
            .coherent_dma_mask      = DMA_BIT_MASK(32),
      },
      .resource = usb_resources,
      .num_resources = ARRAY_SIZE(usb_resources),
};

struct platform_device stmp3xxx_ehci = {
      .name       = "fsl-ehci",
      .id         = -1,
      .dev        = {
            .dma_mask         = &common_dmamask,
            .coherent_dma_mask      = DMA_BIT_MASK(32),
      },
      .resource   = usb_resources,
      .num_resources    = ARRAY_SIZE(usb_resources),
};

static struct resource rtc_resources[] = {
      {
            .start      = REGS_RTC_PHYS,
            .end  = REGS_RTC_PHYS + REGS_RTC_SIZE,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_RTC_ALARM,
            .end  = IRQ_RTC_ALARM,
            .flags      = IORESOURCE_IRQ,
      }, {
            .start      = IRQ_RTC_1MSEC,
            .end  = IRQ_RTC_1MSEC,
            .flags      = IORESOURCE_IRQ,
      },
};

struct platform_device stmp3xxx_rtc = {
      .name       = "stmp3xxx-rtc",
      .id         = -1,
      .resource   = rtc_resources,
      .num_resources    = ARRAY_SIZE(rtc_resources),
};

static struct resource ssp1_resources[] = {
      {
            .start      = REGS_SSP1_PHYS,
            .end  = REGS_SSP1_PHYS + REGS_SSP_SIZE,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_SSP1_DMA,
            .end  = IRQ_SSP1_DMA,
            .flags      = IORESOURCE_IRQ,
      }, {
            .start      = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH),
            .end  = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH),
            .flags      = IORESOURCE_DMA,
      },
};

static struct resource ssp2_resources[] = {
      {
            .start      = REGS_SSP2_PHYS,
            .end  = REGS_SSP2_PHYS + REGS_SSP_SIZE,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_SSP2_DMA,
            .end  = IRQ_SSP2_DMA,
            .flags      = IORESOURCE_IRQ,
      }, {
            .start      = STMP3XXX_DMA(2, STMP3XXX_BUS_APBH),
            .end  = STMP3XXX_DMA(2, STMP3XXX_BUS_APBH),
            .flags      = IORESOURCE_DMA,
      },
};

struct platform_device stmp3xxx_spi1 = {
      .name = "stmp3xxx_ssp",
      .id   = 1,
      .dev  = {
            .dma_mask   = &common_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
      .resource = ssp1_resources,
      .num_resources = ARRAY_SIZE(ssp1_resources),
};

struct platform_device stmp3xxx_spi2 = {
      .name = "stmp3xxx_ssp",
      .id   = 2,
      .dev  = {
            .dma_mask   = &common_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
      .resource = ssp2_resources,
      .num_resources = ARRAY_SIZE(ssp2_resources),
};

static struct resource fb_resource[] = {
      {
            .flags      = IORESOURCE_IRQ,
            .start      = IRQ_LCDIF_DMA,
            .end  = IRQ_LCDIF_DMA,
      }, {
            .flags      = IORESOURCE_IRQ,
            .start      = IRQ_LCDIF_ERROR,
            .end  = IRQ_LCDIF_ERROR,
      }, {
            .flags      = IORESOURCE_MEM,
            .start      = REGS_LCDIF_PHYS,
            .end  = REGS_LCDIF_PHYS + REGS_LCDIF_SIZE,
      },
};

struct platform_device stmp3xxx_framebuffer = {
      .name       = "stmp3xxx-fb",
      .id         = -1,
      .dev        = {
            .dma_mask         = &common_dmamask,
            .coherent_dma_mask      = DMA_BIT_MASK(32),
      },
      .num_resources    = ARRAY_SIZE(fb_resource),
      .resource   = fb_resource,
};

#define CMDLINE_DEVICE_CHOOSE(name, dev1, dev2)             \
      static char *cmdline_device_##name;             \
      static int cmdline_device_##name##_setup(char *dev)   \
      {                                         \
            cmdline_device_##name = dev + 1;          \
            return 0;                           \
      }                                         \
      __setup(#name, cmdline_device_##name##_setup);        \
      int stmp3xxx_##name##_device_register(void)           \
      {                                         \
            struct platform_device *d = NULL;         \
            if (!cmdline_device_##name ||             \
                  !strcmp(cmdline_device_##name, #dev1))    \
                        d = &stmp3xxx_##dev1;         \
            else if (!strcmp(cmdline_device_##name, #dev2)) \
                        d = &stmp3xxx_##dev2;         \
            else                                \
                  printk(KERN_ERR"Unknown %s assignment '%s'.\n", \
                        #name, cmdline_device_##name);      \
            return d ? platform_device_register(d) : -ENOENT;     \
      }

CMDLINE_DEVICE_CHOOSE(ssp1, mmc, spi1)
CMDLINE_DEVICE_CHOOSE(ssp2, gpmi, spi2)

struct platform_device stmp3xxx_backlight = {
      .name       = "stmp3xxx-bl",
      .id         = -1,
};

struct platform_device stmp3xxx_rotdec = {
      .name = "stmp3xxx-rotdec",
      .id   = -1,
};

struct platform_device stmp3xxx_persistent = {
      .name             = "stmp3xxx-persistent",
      .id               = -1,
};

struct platform_device stmp3xxx_dcp_bootstream = {
      .name             = "stmp3xxx-dcpboot",
      .id               = -1,
      .dev  = {
            .dma_mask   = &common_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
};

static struct resource dcp_resources[] = {
      {
            .start = IRQ_DCP_VMI,
            .end = IRQ_DCP_VMI,
            .flags = IORESOURCE_IRQ,
      }, {
            .start = IRQ_DCP,
            .end = IRQ_DCP,
            .flags = IORESOURCE_IRQ,
      },
};

struct platform_device stmp3xxx_dcp = {
      .name             = "stmp3xxx-dcp",
      .id               = -1,
      .resource         = dcp_resources,
      .num_resources          = ARRAY_SIZE(dcp_resources),
      .dev  = {
            .dma_mask   = &common_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
};

static struct resource battery_resource[] = {
      {
            .flags  = IORESOURCE_IRQ,
            .start  = IRQ_VDD5V,
            .end    = IRQ_VDD5V,
      },
};

struct platform_device stmp3xxx_battery = {
      .name   = "stmp3xxx-battery",
      .resource = battery_resource,
      .num_resources = ARRAY_SIZE(battery_resource),
};

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