1 files changed, 104 insertions, 31 deletions

diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 021d51217184..1617048c86c5 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -7,10 +7,12 @@
  */
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/dw_dmac.h>
 #include <linux/fb.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/usb/atmel_usba_udc.h>
 
@@ -594,6 +596,17 @@ static void __init genclk_init_parent(struct clk *clk)
         clk->parent = parent;
 }
 
+static struct dw_dma_platform_data dw_dmac0_data = {
+        .nr_channels    = 3,
+};
+
+static struct resource dw_dmac0_resource[] = {
+        PBMEM(0xff200000),
+        IRQ(2),
+};
+DEFINE_DEV_DATA(dw_dmac, 0);
+DEV_CLK(hclk, dw_dmac0, hsb, 10);
+
 /* --------------------------------------------------------------------
  *  System peripherals
  * -------------------------------------------------------------------- */
@@ -708,17 +721,6 @@ static struct clk pico_clk = {
         .users          = 1,
 };
 
-static struct resource dmaca0_resource[] = {
-        {
-                .start  = 0xff200000,
-                .end    = 0xff20ffff,
-                .flags  = IORESOURCE_MEM,
-        },
-        IRQ(2),
-};
-DEFINE_DEV(dmaca, 0);
-DEV_CLK(hclk, dmaca0, hsb, 10);
-
 /* --------------------------------------------------------------------
  * HMATRIX
  * -------------------------------------------------------------------- */
@@ -831,7 +833,7 @@ void __init at32_add_system_devices(void)
         platform_device_register(&at32_eic0_device);
         platform_device_register(&smc0_device);
         platform_device_register(&pdc_device);
-        platform_device_register(&dmaca0_device);
+        platform_device_register(&dw_dmac0_device);
 
         platform_device_register(&at32_tcb0_device);
         platform_device_register(&at32_tcb1_device);
@@ -1284,7 +1286,6 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
 {
         struct mci_platform_data        _data;
         struct platform_device          *pdev;
-        struct dw_dma_slave             *dws;
 
         if (id != 0)
                 return NULL;
@@ -1299,7 +1300,9 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
 
         if (!data) {
                 data = &_data;
-                memset(data, 0, sizeof(struct mci_platform_data));
+                memset(data, -1, sizeof(struct mci_platform_data));
+                data->detect_pin = GPIO_PIN_NONE;
+                data->wp_pin = GPIO_PIN_NONE;
         }
 
         if (platform_device_add_data(pdev, data,
@@ -1313,12 +1316,10 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
         select_peripheral(PA(14), PERIPH_A, 0); /* DATA2 */
         select_peripheral(PA(15), PERIPH_A, 0); /* DATA3 */
 
-        if (data) {
-                if (data->detect_pin != GPIO_PIN_NONE)
-                        at32_select_gpio(data->detect_pin, 0);
-                if (data->wp_pin != GPIO_PIN_NONE)
-                        at32_select_gpio(data->wp_pin, 0);
-        }
+        if (gpio_is_valid(data->detect_pin))
+                at32_select_gpio(data->detect_pin, 0);
+        if (gpio_is_valid(data->wp_pin))
+                at32_select_gpio(data->wp_pin, 0);
 
         atmel_mci0_pclk.dev = &pdev->dev;
 
@@ -1852,11 +1853,11 @@ at32_add_device_cf(unsigned int id, unsigned int extint,
         if (at32_init_ide_or_cf(pdev, data->cs, extint))
                 goto fail;
 
-        if (data->detect_pin != GPIO_PIN_NONE)
+        if (gpio_is_valid(data->detect_pin))
                 at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
-        if (data->reset_pin != GPIO_PIN_NONE)
+        if (gpio_is_valid(data->reset_pin))
                 at32_select_gpio(data->reset_pin, 0);
-        if (data->vcc_pin != GPIO_PIN_NONE)
+        if (gpio_is_valid(data->vcc_pin))
                 at32_select_gpio(data->vcc_pin, 0);
         /* READY is used as extint, so we can't select it as gpio */
 
@@ -1870,6 +1871,58 @@ fail:
 #endif
 
 /* --------------------------------------------------------------------
+ * NAND Flash / SmartMedia
+ * -------------------------------------------------------------------- */
+static struct resource smc_cs3_resource[] __initdata = {
+        {
+                .start  = 0x0c000000,
+                .end    = 0x0fffffff,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .start  = 0xfff03c00,
+                .end    = 0xfff03fff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+struct platform_device *__init
+at32_add_device_nand(unsigned int id, struct atmel_nand_data *data)
+{
+        struct platform_device *pdev;
+
+        if (id != 0 || !data)
+                return NULL;
+
+        pdev = platform_device_alloc("atmel_nand", id);
+        if (!pdev)
+                goto fail;
+
+        if (platform_device_add_resources(pdev, smc_cs3_resource,
+                                ARRAY_SIZE(smc_cs3_resource)))
+                goto fail;
+
+        if (platform_device_add_data(pdev, data,
+                                sizeof(struct atmel_nand_data)))
+                goto fail;
+
+        set_ebi_sfr_bits(HMATRIX_BIT(CS3A));
+        if (data->enable_pin)
+                at32_select_gpio(data->enable_pin,
+                                AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
+        if (data->rdy_pin)
+                at32_select_gpio(data->rdy_pin, 0);
+        if (data->det_pin)
+                at32_select_gpio(data->det_pin, 0);
+
+        platform_device_add(pdev);
+        return pdev;
+
+fail:
+        platform_device_put(pdev);
+        return NULL;
+}
+
+/* --------------------------------------------------------------------
  * AC97C
  * -------------------------------------------------------------------- */
 static struct resource atmel_ac97c0_resource[] __initdata = {
@@ -1884,9 +1937,11 @@ static struct clk atmel_ac97c0_pclk = {
         .index          = 10,
 };
 
-struct platform_device *__init at32_add_device_ac97c(unsigned int id)
+struct platform_device *__init
+at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
 {
         struct platform_device *pdev;
+        struct ac97c_platform_data _data;
 
         if (id != 0)
                 return NULL;
@@ -1897,19 +1952,37 @@ struct platform_device *__init at32_add_device_ac97c(unsigned int id)
 
         if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
                                 ARRAY_SIZE(atmel_ac97c0_resource)))
-                goto err_add_resources;
+                goto fail;
+
+        if (!data) {
+                data = &_data;
+                memset(data, 0, sizeof(struct ac97c_platform_data));
+                data->reset_pin = GPIO_PIN_NONE;
+        }
 
-        select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */
-        select_peripheral(PB(21), PERIPH_B, 0); /* SDO  */
-        select_peripheral(PB(22), PERIPH_B, 0); /* SDI  */
-        select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */
+        data->dma_rx_periph_id = 3;
+        data->dma_tx_periph_id = 4;
+        data->dma_controller_id = 0;
+
+        if (platform_device_add_data(pdev, data,
+                                sizeof(struct ac97c_platform_data)))
+                goto fail;
+
+        select_peripheral(PB(20), PERIPH_B, 0); /* SDO  */
+        select_peripheral(PB(21), PERIPH_B, 0); /* SYNC */
+        select_peripheral(PB(22), PERIPH_B, 0); /* SCLK */
+        select_peripheral(PB(23), PERIPH_B, 0); /* SDI  */
+
+        /* TODO: gpio_is_valid(data->reset_pin) with kernel 2.6.26. */
+        if (data->reset_pin != GPIO_PIN_NONE)
+                at32_select_gpio(data->reset_pin, 0);
 
         atmel_ac97c0_pclk.dev = &pdev->dev;
 
         platform_device_add(pdev);
         return pdev;
 
-err_add_resources:
+fail:
         platform_device_put(pdev);
         return NULL;
 }
@@ -2032,7 +2105,7 @@ struct clk *at32_clock_list[] = {
         &smc0_mck,
         &pdc_hclk,
         &pdc_pclk,
-        &dmaca0_hclk,
+        &dw_dmac0_hclk,
         &pico_clk,
         &pio0_mck,
         &pio1_mck,