Merge branch 'next' into for-linus-3.0
[linux-2.6.git] / arch / arm / mach-ep93xx / core.c
index 16b92c3..dd87a82 100644 (file)
  * your option) any later version.
  */
 
+#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
 #include <linux/timex.h>
+#include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
 #include <linux/termios.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/serial.h>
+#include <linux/mtd/physmap.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
+#include <linux/spi/spi.h>
 
 #include <mach/hardware.h>
+#include <mach/fb.h>
+#include <mach/ep93xx_keypad.h>
+#include <mach/ep93xx_spi.h>
 
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
-#include <asm/mach/irq.h>
 
 #include <asm/hardware/vic.h>
 
@@ -80,13 +87,40 @@ void __init ep93xx_map_io(void)
  * to use this timer for something else.  We also use timer 4 for keeping
  * track of lost jiffies.
  */
-static unsigned int last_jiffy_time;
-
+#define EP93XX_TIMER_REG(x)            (EP93XX_TIMER_BASE + (x))
+#define EP93XX_TIMER1_LOAD             EP93XX_TIMER_REG(0x00)
+#define EP93XX_TIMER1_VALUE            EP93XX_TIMER_REG(0x04)
+#define EP93XX_TIMER1_CONTROL          EP93XX_TIMER_REG(0x08)
+#define EP93XX_TIMER123_CONTROL_ENABLE (1 << 7)
+#define EP93XX_TIMER123_CONTROL_MODE   (1 << 6)
+#define EP93XX_TIMER123_CONTROL_CLKSEL (1 << 3)
+#define EP93XX_TIMER1_CLEAR            EP93XX_TIMER_REG(0x0c)
+#define EP93XX_TIMER2_LOAD             EP93XX_TIMER_REG(0x20)
+#define EP93XX_TIMER2_VALUE            EP93XX_TIMER_REG(0x24)
+#define EP93XX_TIMER2_CONTROL          EP93XX_TIMER_REG(0x28)
+#define EP93XX_TIMER2_CLEAR            EP93XX_TIMER_REG(0x2c)
+#define EP93XX_TIMER4_VALUE_LOW                EP93XX_TIMER_REG(0x60)
+#define EP93XX_TIMER4_VALUE_HIGH       EP93XX_TIMER_REG(0x64)
+#define EP93XX_TIMER4_VALUE_HIGH_ENABLE        (1 << 8)
+#define EP93XX_TIMER3_LOAD             EP93XX_TIMER_REG(0x80)
+#define EP93XX_TIMER3_VALUE            EP93XX_TIMER_REG(0x84)
+#define EP93XX_TIMER3_CONTROL          EP93XX_TIMER_REG(0x88)
+#define EP93XX_TIMER3_CLEAR            EP93XX_TIMER_REG(0x8c)
+
+#define EP93XX_TIMER123_CLOCK          508469
+#define EP93XX_TIMER4_CLOCK            983040
+
+#define TIMER1_RELOAD                  ((EP93XX_TIMER123_CLOCK / HZ) - 1)
 #define TIMER4_TICKS_PER_JIFFY         DIV_ROUND_CLOSEST(CLOCK_TICK_RATE, HZ)
 
+static unsigned int last_jiffy_time;
+
 static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
 {
+       /* Writing any value clears the timer interrupt */
        __raw_writel(1, EP93XX_TIMER1_CLEAR);
+
+       /* Recover lost jiffies */
        while ((signed long)
                (__raw_readl(EP93XX_TIMER4_VALUE_LOW) - last_jiffy_time)
                                                >= TIMER4_TICKS_PER_JIFFY) {
@@ -105,13 +139,18 @@ static struct irqaction ep93xx_timer_irq = {
 
 static void __init ep93xx_timer_init(void)
 {
+       u32 tmode = EP93XX_TIMER123_CONTROL_MODE |
+                   EP93XX_TIMER123_CONTROL_CLKSEL;
+
        /* Enable periodic HZ timer.  */
-       __raw_writel(0x48, EP93XX_TIMER1_CONTROL);
-       __raw_writel((508469 / HZ) - 1, EP93XX_TIMER1_LOAD);
-       __raw_writel(0xc8, EP93XX_TIMER1_CONTROL);
+       __raw_writel(tmode, EP93XX_TIMER1_CONTROL);
+       __raw_writel(TIMER1_RELOAD, EP93XX_TIMER1_LOAD);
+       __raw_writel(tmode | EP93XX_TIMER123_CONTROL_ENABLE,
+                       EP93XX_TIMER1_CONTROL);
 
        /* Enable lost jiffy timer.  */
-       __raw_writel(0x100, EP93XX_TIMER4_VALUE_HIGH);
+       __raw_writel(EP93XX_TIMER4_VALUE_HIGH_ENABLE,
+                       EP93XX_TIMER4_VALUE_HIGH);
 
        setup_irq(IRQ_EP93XX_TIMER1, &ep93xx_timer_irq);
 }
@@ -133,238 +172,16 @@ struct sys_timer ep93xx_timer = {
 
 
 /*************************************************************************
- * GPIO handling for EP93xx
- *************************************************************************/
-static unsigned char gpio_int_unmasked[3];
-static unsigned char gpio_int_enabled[3];
-static unsigned char gpio_int_type1[3];
-static unsigned char gpio_int_type2[3];
-static unsigned char gpio_int_debounce[3];
-
-/* Port ordering is: A B F */
-static const u8 int_type1_register_offset[3]   = { 0x90, 0xac, 0x4c };
-static const u8 int_type2_register_offset[3]   = { 0x94, 0xb0, 0x50 };
-static const u8 eoi_register_offset[3]         = { 0x98, 0xb4, 0x54 };
-static const u8 int_en_register_offset[3]      = { 0x9c, 0xb8, 0x58 };
-static const u8 int_debounce_register_offset[3]        = { 0xa8, 0xc4, 0x64 };
-
-void ep93xx_gpio_update_int_params(unsigned port)
-{
-       BUG_ON(port > 2);
-
-       __raw_writeb(0, EP93XX_GPIO_REG(int_en_register_offset[port]));
-
-       __raw_writeb(gpio_int_type2[port],
-               EP93XX_GPIO_REG(int_type2_register_offset[port]));
-
-       __raw_writeb(gpio_int_type1[port],
-               EP93XX_GPIO_REG(int_type1_register_offset[port]));
-
-       __raw_writeb(gpio_int_unmasked[port] & gpio_int_enabled[port],
-               EP93XX_GPIO_REG(int_en_register_offset[port]));
-}
-
-void ep93xx_gpio_int_mask(unsigned line)
-{
-       gpio_int_unmasked[line >> 3] &= ~(1 << (line & 7));
-}
-
-void ep93xx_gpio_int_debounce(unsigned int irq, int enable)
-{
-       int line = irq_to_gpio(irq);
-       int port = line >> 3;
-       int port_mask = 1 << (line & 7);
-
-       if (enable)
-               gpio_int_debounce[port] |= port_mask;
-       else
-               gpio_int_debounce[port] &= ~port_mask;
-
-       __raw_writeb(gpio_int_debounce[port],
-               EP93XX_GPIO_REG(int_debounce_register_offset[port]));
-}
-EXPORT_SYMBOL(ep93xx_gpio_int_debounce);
-
-/*************************************************************************
  * EP93xx IRQ handling
  *************************************************************************/
-static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-       unsigned char status;
-       int i;
-
-       status = __raw_readb(EP93XX_GPIO_A_INT_STATUS);
-       for (i = 0; i < 8; i++) {
-               if (status & (1 << i)) {
-                       int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i;
-                       generic_handle_irq(gpio_irq);
-               }
-       }
-
-       status = __raw_readb(EP93XX_GPIO_B_INT_STATUS);
-       for (i = 0; i < 8; i++) {
-               if (status & (1 << i)) {
-                       int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i;
-                       desc = irq_desc + gpio_irq;
-                       generic_handle_irq(gpio_irq);
-               }
-       }
-}
-
-static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-       /*
-        * map discontiguous hw irq range to continous sw irq range:
-        *
-        *  IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
-        */
-       int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */
-       int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx;
-
-       generic_handle_irq(gpio_irq);
-}
-
-static void ep93xx_gpio_irq_ack(unsigned int irq)
-{
-       int line = irq_to_gpio(irq);
-       int port = line >> 3;
-       int port_mask = 1 << (line & 7);
-
-       if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
-               gpio_int_type2[port] ^= port_mask; /* switch edge direction */
-               ep93xx_gpio_update_int_params(port);
-       }
-
-       __raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
-}
-
-static void ep93xx_gpio_irq_mask_ack(unsigned int irq)
-{
-       int line = irq_to_gpio(irq);
-       int port = line >> 3;
-       int port_mask = 1 << (line & 7);
-
-       if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
-               gpio_int_type2[port] ^= port_mask; /* switch edge direction */
-
-       gpio_int_unmasked[port] &= ~port_mask;
-       ep93xx_gpio_update_int_params(port);
-
-       __raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
-}
-
-static void ep93xx_gpio_irq_mask(unsigned int irq)
-{
-       int line = irq_to_gpio(irq);
-       int port = line >> 3;
-
-       gpio_int_unmasked[port] &= ~(1 << (line & 7));
-       ep93xx_gpio_update_int_params(port);
-}
-
-static void ep93xx_gpio_irq_unmask(unsigned int irq)
-{
-       int line = irq_to_gpio(irq);
-       int port = line >> 3;
-
-       gpio_int_unmasked[port] |= 1 << (line & 7);
-       ep93xx_gpio_update_int_params(port);
-}
-
-
-/*
- * gpio_int_type1 controls whether the interrupt is level (0) or
- * edge (1) triggered, while gpio_int_type2 controls whether it
- * triggers on low/falling (0) or high/rising (1).
- */
-static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type)
-{
-       struct irq_desc *desc = irq_desc + irq;
-       const int gpio = irq_to_gpio(irq);
-       const int port = gpio >> 3;
-       const int port_mask = 1 << (gpio & 7);
-
-       gpio_direction_input(gpio);
-
-       switch (type) {
-       case IRQ_TYPE_EDGE_RISING:
-               gpio_int_type1[port] |= port_mask;
-               gpio_int_type2[port] |= port_mask;
-               desc->handle_irq = handle_edge_irq;
-               break;
-       case IRQ_TYPE_EDGE_FALLING:
-               gpio_int_type1[port] |= port_mask;
-               gpio_int_type2[port] &= ~port_mask;
-               desc->handle_irq = handle_edge_irq;
-               break;
-       case IRQ_TYPE_LEVEL_HIGH:
-               gpio_int_type1[port] &= ~port_mask;
-               gpio_int_type2[port] |= port_mask;
-               desc->handle_irq = handle_level_irq;
-               break;
-       case IRQ_TYPE_LEVEL_LOW:
-               gpio_int_type1[port] &= ~port_mask;
-               gpio_int_type2[port] &= ~port_mask;
-               desc->handle_irq = handle_level_irq;
-               break;
-       case IRQ_TYPE_EDGE_BOTH:
-               gpio_int_type1[port] |= port_mask;
-               /* set initial polarity based on current input level */
-               if (gpio_get_value(gpio))
-                       gpio_int_type2[port] &= ~port_mask; /* falling */
-               else
-                       gpio_int_type2[port] |= port_mask; /* rising */
-               desc->handle_irq = handle_edge_irq;
-               break;
-       default:
-               pr_err("ep93xx: failed to set irq type %d for gpio %d\n",
-                      type, gpio);
-               return -EINVAL;
-       }
-
-       gpio_int_enabled[port] |= port_mask;
-
-       desc->status &= ~IRQ_TYPE_SENSE_MASK;
-       desc->status |= type & IRQ_TYPE_SENSE_MASK;
-
-       ep93xx_gpio_update_int_params(port);
-
-       return 0;
-}
-
-static struct irq_chip ep93xx_gpio_irq_chip = {
-       .name           = "GPIO",
-       .ack            = ep93xx_gpio_irq_ack,
-       .mask_ack       = ep93xx_gpio_irq_mask_ack,
-       .mask           = ep93xx_gpio_irq_mask,
-       .unmask         = ep93xx_gpio_irq_unmask,
-       .set_type       = ep93xx_gpio_irq_type,
-};
-
+extern void ep93xx_gpio_init_irq(void);
 
 void __init ep93xx_init_irq(void)
 {
-       int gpio_irq;
-
        vic_init(EP93XX_VIC1_BASE, 0, EP93XX_VIC1_VALID_IRQ_MASK, 0);
        vic_init(EP93XX_VIC2_BASE, 32, EP93XX_VIC2_VALID_IRQ_MASK, 0);
 
-       for (gpio_irq = gpio_to_irq(0);
-            gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) {
-               set_irq_chip(gpio_irq, &ep93xx_gpio_irq_chip);
-               set_irq_handler(gpio_irq, handle_level_irq);
-               set_irq_flags(gpio_irq, IRQF_VALID);
-       }
-
-       set_irq_chained_handler(IRQ_EP93XX_GPIO_AB, ep93xx_gpio_ab_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO0MUX, ep93xx_gpio_f_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO1MUX, ep93xx_gpio_f_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO2MUX, ep93xx_gpio_f_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO3MUX, ep93xx_gpio_f_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO4MUX, ep93xx_gpio_f_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO5MUX, ep93xx_gpio_f_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO6MUX, ep93xx_gpio_f_irq_handler);
-       set_irq_chained_handler(IRQ_EP93XX_GPIO7MUX, ep93xx_gpio_f_irq_handler);
+       ep93xx_gpio_init_irq();
 }
 
 
@@ -399,8 +216,8 @@ void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits)
        spin_lock_irqsave(&syscon_swlock, flags);
 
        val = __raw_readl(EP93XX_SYSCON_DEVCFG);
-       val |= set_bits;
        val &= ~clear_bits;
+       val |= set_bits;
        __raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
        __raw_writel(val, EP93XX_SYSCON_DEVCFG);
 
@@ -408,6 +225,20 @@ void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits)
 }
 EXPORT_SYMBOL(ep93xx_devcfg_set_clear);
 
+/**
+ * ep93xx_chip_revision() - returns the EP93xx chip revision
+ *
+ * See <mach/platform.h> for more information.
+ */
+unsigned int ep93xx_chip_revision(void)
+{
+       unsigned int v;
+
+       v = __raw_readl(EP93XX_SYSCON_SYSCFG);
+       v &= EP93XX_SYSCON_SYSCFG_REV_MASK;
+       v >>= EP93XX_SYSCON_SYSCFG_REV_SHIFT;
+       return v;
+}
 
 /*************************************************************************
  * EP93xx peripheral handling
@@ -420,9 +251,9 @@ static void ep93xx_uart_set_mctrl(struct amba_device *dev,
        unsigned int mcr;
 
        mcr = 0;
-       if (!(mctrl & TIOCM_RTS))
+       if (mctrl & TIOCM_RTS)
                mcr |= 2;
-       if (!(mctrl & TIOCM_DTR))
+       if (mctrl & TIOCM_DTR)
                mcr |= 1;
 
        __raw_writel(mcr, base + EP93XX_UART_MCR_OFFSET);
@@ -516,6 +347,47 @@ static struct platform_device ep93xx_ohci_device = {
        .resource       = ep93xx_ohci_resources,
 };
 
+
+/*************************************************************************
+ * EP93xx physmap'ed flash
+ *************************************************************************/
+static struct physmap_flash_data ep93xx_flash_data;
+
+static struct resource ep93xx_flash_resource = {
+       .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device ep93xx_flash = {
+       .name           = "physmap-flash",
+       .id             = 0,
+       .dev            = {
+               .platform_data  = &ep93xx_flash_data,
+       },
+       .num_resources  = 1,
+       .resource       = &ep93xx_flash_resource,
+};
+
+/**
+ * ep93xx_register_flash() - Register the external flash device.
+ * @width:     bank width in octets
+ * @start:     resource start address
+ * @size:      resource size
+ */
+void __init ep93xx_register_flash(unsigned int width,
+                                 resource_size_t start, resource_size_t size)
+{
+       ep93xx_flash_data.width         = width;
+
+       ep93xx_flash_resource.start     = start;
+       ep93xx_flash_resource.end       = start + size - 1;
+
+       platform_device_register(&ep93xx_flash);
+}
+
+
+/*************************************************************************
+ * EP93xx ethernet peripheral handling
+ *************************************************************************/
 static struct ep93xx_eth_data ep93xx_eth_data;
 
 static struct resource ep93xx_eth_resource[] = {
@@ -530,16 +402,26 @@ static struct resource ep93xx_eth_resource[] = {
        }
 };
 
+static u64 ep93xx_eth_dma_mask = DMA_BIT_MASK(32);
+
 static struct platform_device ep93xx_eth_device = {
        .name           = "ep93xx-eth",
        .id             = -1,
        .dev            = {
-               .platform_data  = &ep93xx_eth_data,
+               .platform_data          = &ep93xx_eth_data,
+               .coherent_dma_mask      = DMA_BIT_MASK(32),
+               .dma_mask               = &ep93xx_eth_dma_mask,
        },
        .num_resources  = ARRAY_SIZE(ep93xx_eth_resource),
        .resource       = ep93xx_eth_resource,
 };
 
+/**
+ * ep93xx_register_eth - Register the built-in ethernet platform device.
+ * @data:      platform specific ethernet configuration (__initdata)
+ * @copy_addr: flag indicating that the MAC address should be copied
+ *             from the IndAd registers (as programmed by the bootloader)
+ */
 void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr)
 {
        if (copy_addr)
@@ -549,37 +431,114 @@ void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr)
        platform_device_register(&ep93xx_eth_device);
 }
 
-static struct i2c_gpio_platform_data ep93xx_i2c_data = {
-       .sda_pin                = EP93XX_GPIO_LINE_EEDAT,
-       .sda_is_open_drain      = 0,
-       .scl_pin                = EP93XX_GPIO_LINE_EECLK,
-       .scl_is_open_drain      = 0,
-       .udelay                 = 2,
-};
+
+/*************************************************************************
+ * EP93xx i2c peripheral handling
+ *************************************************************************/
+static struct i2c_gpio_platform_data ep93xx_i2c_data;
 
 static struct platform_device ep93xx_i2c_device = {
-       .name                   = "i2c-gpio",
-       .id                     = 0,
-       .dev.platform_data      = &ep93xx_i2c_data,
+       .name           = "i2c-gpio",
+       .id             = 0,
+       .dev            = {
+               .platform_data  = &ep93xx_i2c_data,
+       },
 };
 
-void __init ep93xx_register_i2c(struct i2c_board_info *devices, int num)
+/**
+ * ep93xx_register_i2c - Register the i2c platform device.
+ * @data:      platform specific i2c-gpio configuration (__initdata)
+ * @devices:   platform specific i2c bus device information (__initdata)
+ * @num:       the number of devices on the i2c bus
+ */
+void __init ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
+                               struct i2c_board_info *devices, int num)
 {
+       /*
+        * Set the EEPROM interface pin drive type control.
+        * Defines the driver type for the EECLK and EEDAT pins as either
+        * open drain, which will require an external pull-up, or a normal
+        * CMOS driver.
+        */
+       if (data->sda_is_open_drain && data->sda_pin != EP93XX_GPIO_LINE_EEDAT)
+               pr_warning("sda != EEDAT, open drain has no effect\n");
+       if (data->scl_is_open_drain && data->scl_pin != EP93XX_GPIO_LINE_EECLK)
+               pr_warning("scl != EECLK, open drain has no effect\n");
+
+       __raw_writel((data->sda_is_open_drain << 1) |
+                    (data->scl_is_open_drain << 0),
+                    EP93XX_GPIO_EEDRIVE);
+
+       ep93xx_i2c_data = *data;
        i2c_register_board_info(0, devices, num);
        platform_device_register(&ep93xx_i2c_device);
 }
 
+/*************************************************************************
+ * EP93xx SPI peripheral handling
+ *************************************************************************/
+static struct ep93xx_spi_info ep93xx_spi_master_data;
+
+static struct resource ep93xx_spi_resources[] = {
+       {
+               .start  = EP93XX_SPI_PHYS_BASE,
+               .end    = EP93XX_SPI_PHYS_BASE + 0x18 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               .start  = IRQ_EP93XX_SSP,
+               .end    = IRQ_EP93XX_SSP,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static u64 ep93xx_spi_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device ep93xx_spi_device = {
+       .name           = "ep93xx-spi",
+       .id             = 0,
+       .dev            = {
+               .platform_data          = &ep93xx_spi_master_data,
+               .coherent_dma_mask      = DMA_BIT_MASK(32),
+               .dma_mask               = &ep93xx_spi_dma_mask,
+       },
+       .num_resources  = ARRAY_SIZE(ep93xx_spi_resources),
+       .resource       = ep93xx_spi_resources,
+};
+
+/**
+ * ep93xx_register_spi() - registers spi platform device
+ * @info: ep93xx board specific spi master info (__initdata)
+ * @devices: SPI devices to register (__initdata)
+ * @num: number of SPI devices to register
+ *
+ * This function registers platform device for the EP93xx SPI controller and
+ * also makes sure that SPI pins are muxed so that I2S is not using those pins.
+ */
+void __init ep93xx_register_spi(struct ep93xx_spi_info *info,
+                               struct spi_board_info *devices, int num)
+{
+       /*
+        * When SPI is used, we need to make sure that I2S is muxed off from
+        * SPI pins.
+        */
+       ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2SONSSP);
+
+       ep93xx_spi_master_data = *info;
+       spi_register_board_info(devices, num);
+       platform_device_register(&ep93xx_spi_device);
+}
 
 /*************************************************************************
  * EP93xx LEDs
  *************************************************************************/
 static struct gpio_led ep93xx_led_pins[] = {
        {
-               .name                   = "platform:grled",
-               .gpio                   = EP93XX_GPIO_LINE_GRLED,
+               .name   = "platform:grled",
+               .gpio   = EP93XX_GPIO_LINE_GRLED,
        }, {
-               .name                   = "platform:rdled",
-               .gpio                   = EP93XX_GPIO_LINE_RDLED,
+               .name   = "platform:rdled",
+               .gpio   = EP93XX_GPIO_LINE_RDLED,
        },
 };
 
@@ -682,6 +641,239 @@ void ep93xx_pwm_release_gpio(struct platform_device *pdev)
 EXPORT_SYMBOL(ep93xx_pwm_release_gpio);
 
 
+/*************************************************************************
+ * EP93xx video peripheral handling
+ *************************************************************************/
+static struct ep93xxfb_mach_info ep93xxfb_data;
+
+static struct resource ep93xx_fb_resource[] = {
+       {
+               .start          = EP93XX_RASTER_PHYS_BASE,
+               .end            = EP93XX_RASTER_PHYS_BASE + 0x800 - 1,
+               .flags          = IORESOURCE_MEM,
+       },
+};
+
+static struct platform_device ep93xx_fb_device = {
+       .name                   = "ep93xx-fb",
+       .id                     = -1,
+       .dev                    = {
+               .platform_data          = &ep93xxfb_data,
+               .coherent_dma_mask      = DMA_BIT_MASK(32),
+               .dma_mask               = &ep93xx_fb_device.dev.coherent_dma_mask,
+       },
+       .num_resources          = ARRAY_SIZE(ep93xx_fb_resource),
+       .resource               = ep93xx_fb_resource,
+};
+
+static struct platform_device ep93xx_bl_device = {
+       .name           = "ep93xx-bl",
+       .id             = -1,
+};
+
+/**
+ * ep93xx_register_fb - Register the framebuffer platform device.
+ * @data:      platform specific framebuffer configuration (__initdata)
+ */
+void __init ep93xx_register_fb(struct ep93xxfb_mach_info *data)
+{
+       ep93xxfb_data = *data;
+       platform_device_register(&ep93xx_fb_device);
+       platform_device_register(&ep93xx_bl_device);
+}
+
+
+/*************************************************************************
+ * EP93xx matrix keypad peripheral handling
+ *************************************************************************/
+static struct ep93xx_keypad_platform_data ep93xx_keypad_data;
+
+static struct resource ep93xx_keypad_resource[] = {
+       {
+               .start  = EP93XX_KEY_MATRIX_PHYS_BASE,
+               .end    = EP93XX_KEY_MATRIX_PHYS_BASE + 0x0c - 1,
+               .flags  = IORESOURCE_MEM,
+       }, {
+               .start  = IRQ_EP93XX_KEY,
+               .end    = IRQ_EP93XX_KEY,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device ep93xx_keypad_device = {
+       .name           = "ep93xx-keypad",
+       .id             = -1,
+       .dev            = {
+               .platform_data  = &ep93xx_keypad_data,
+       },
+       .num_resources  = ARRAY_SIZE(ep93xx_keypad_resource),
+       .resource       = ep93xx_keypad_resource,
+};
+
+/**
+ * ep93xx_register_keypad - Register the keypad platform device.
+ * @data:      platform specific keypad configuration (__initdata)
+ */
+void __init ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data)
+{
+       ep93xx_keypad_data = *data;
+       platform_device_register(&ep93xx_keypad_device);
+}
+
+int ep93xx_keypad_acquire_gpio(struct platform_device *pdev)
+{
+       int err;
+       int i;
+
+       for (i = 0; i < 8; i++) {
+               err = gpio_request(EP93XX_GPIO_LINE_C(i), dev_name(&pdev->dev));
+               if (err)
+                       goto fail_gpio_c;
+               err = gpio_request(EP93XX_GPIO_LINE_D(i), dev_name(&pdev->dev));
+               if (err)
+                       goto fail_gpio_d;
+       }
+
+       /* Enable the keypad controller; GPIO ports C and D used for keypad */
+       ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_KEYS |
+                                EP93XX_SYSCON_DEVCFG_GONK);
+
+       return 0;
+
+fail_gpio_d:
+       gpio_free(EP93XX_GPIO_LINE_C(i));
+fail_gpio_c:
+       for ( ; i >= 0; --i) {
+               gpio_free(EP93XX_GPIO_LINE_C(i));
+               gpio_free(EP93XX_GPIO_LINE_D(i));
+       }
+       return err;
+}
+EXPORT_SYMBOL(ep93xx_keypad_acquire_gpio);
+
+void ep93xx_keypad_release_gpio(struct platform_device *pdev)
+{
+       int i;
+
+       for (i = 0; i < 8; i++) {
+               gpio_free(EP93XX_GPIO_LINE_C(i));
+               gpio_free(EP93XX_GPIO_LINE_D(i));
+       }
+
+       /* Disable the keypad controller; GPIO ports C and D used for GPIO */
+       ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_KEYS |
+                              EP93XX_SYSCON_DEVCFG_GONK);
+}
+EXPORT_SYMBOL(ep93xx_keypad_release_gpio);
+
+/*************************************************************************
+ * EP93xx I2S audio peripheral handling
+ *************************************************************************/
+static struct resource ep93xx_i2s_resource[] = {
+       {
+               .start  = EP93XX_I2S_PHYS_BASE,
+               .end    = EP93XX_I2S_PHYS_BASE + 0x100 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+};
+
+static struct platform_device ep93xx_i2s_device = {
+       .name           = "ep93xx-i2s",
+       .id             = -1,
+       .num_resources  = ARRAY_SIZE(ep93xx_i2s_resource),
+       .resource       = ep93xx_i2s_resource,
+};
+
+static struct platform_device ep93xx_pcm_device = {
+       .name           = "ep93xx-pcm-audio",
+       .id             = -1,
+};
+
+void __init ep93xx_register_i2s(void)
+{
+       platform_device_register(&ep93xx_i2s_device);
+       platform_device_register(&ep93xx_pcm_device);
+}
+
+#define EP93XX_SYSCON_DEVCFG_I2S_MASK  (EP93XX_SYSCON_DEVCFG_I2SONSSP | \
+                                        EP93XX_SYSCON_DEVCFG_I2SONAC97)
+
+#define EP93XX_I2SCLKDIV_MASK          (EP93XX_SYSCON_I2SCLKDIV_ORIDE | \
+                                        EP93XX_SYSCON_I2SCLKDIV_SPOL)
+
+int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config)
+{
+       unsigned val;
+
+       /* Sanity check */
+       if (i2s_pins & ~EP93XX_SYSCON_DEVCFG_I2S_MASK)
+               return -EINVAL;
+       if (i2s_config & ~EP93XX_I2SCLKDIV_MASK)
+               return -EINVAL;
+
+       /* Must have only one of I2SONSSP/I2SONAC97 set */
+       if ((i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONSSP) ==
+           (i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONAC97))
+               return -EINVAL;
+
+       ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2S_MASK);
+       ep93xx_devcfg_set_bits(i2s_pins);
+
+       /*
+        * This is potentially racy with the clock api for i2s_mclk, sclk and 
+        * lrclk. Since the i2s driver is the only user of those clocks we
+        * rely on it to prevent parallel use of this function and the 
+        * clock api for the i2s clocks.
+        */
+       val = __raw_readl(EP93XX_SYSCON_I2SCLKDIV);
+       val &= ~EP93XX_I2SCLKDIV_MASK;
+       val |= i2s_config;
+       ep93xx_syscon_swlocked_write(val, EP93XX_SYSCON_I2SCLKDIV);
+
+       return 0;
+}
+EXPORT_SYMBOL(ep93xx_i2s_acquire);
+
+void ep93xx_i2s_release(void)
+{
+       ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2S_MASK);
+}
+EXPORT_SYMBOL(ep93xx_i2s_release);
+
+/*************************************************************************
+ * EP93xx AC97 audio peripheral handling
+ *************************************************************************/
+static struct resource ep93xx_ac97_resources[] = {
+       {
+               .start  = EP93XX_AAC_PHYS_BASE,
+               .end    = EP93XX_AAC_PHYS_BASE + 0xac - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               .start  = IRQ_EP93XX_AACINTR,
+               .end    = IRQ_EP93XX_AACINTR,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device ep93xx_ac97_device = {
+       .name           = "ep93xx-ac97",
+       .id             = -1,
+       .num_resources  = ARRAY_SIZE(ep93xx_ac97_resources),
+       .resource       = ep93xx_ac97_resources,
+};
+
+void __init ep93xx_register_ac97(void)
+{
+       /*
+        * Make sure that the AC97 pins are not used by I2S.
+        */
+       ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97);
+
+       platform_device_register(&ep93xx_ac97_device);
+       platform_device_register(&ep93xx_pcm_device);
+}
+
 extern void ep93xx_gpio_init(void);
 
 void __init ep93xx_init_devices(void)