[AVR32] Platform code for pata_at32
This patch adds platform code for PATA devices on the AP7000.
[hskinnemoen@atmel.com: board code left out for now since stk1000
doesn't support IDE out of the box]
Signed-off-by: Kristoffer Nyborg Gregertsen <kngregertsen@norway.atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
index f6d154c..30aedc9 100644
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -1228,6 +1228,71 @@
}
/* --------------------------------------------------------------------
+ * IDE
+ * -------------------------------------------------------------------- */
+static struct ide_platform_data at32_ide0_data;
+static struct resource at32_ide0_resource[] = {
+ {
+ .start = 0x04000000,
+ .end = 0x07ffffff,
+ .flags = IORESOURCE_MEM,
+ },
+ IRQ(~0UL), /* Magic IRQ will be overridden */
+};
+DEFINE_DEV_DATA(at32_ide, 0);
+
+struct platform_device *__init
+at32_add_device_ide(unsigned int id, unsigned int extint,
+ struct ide_platform_data *data)
+{
+ struct platform_device *pdev;
+ unsigned int extint_pin;
+
+ switch (extint) {
+ case 0:
+ extint_pin = GPIO_PIN_PB(25);
+ break;
+ case 1:
+ extint_pin = GPIO_PIN_PB(26);
+ break;
+ case 2:
+ extint_pin = GPIO_PIN_PB(27);
+ break;
+ case 3:
+ extint_pin = GPIO_PIN_PB(28);
+ break;
+ default:
+ return NULL;
+ }
+
+ switch (id) {
+ case 0:
+ pdev = &at32_ide0_device;
+ select_peripheral(PE(19), PERIPH_A, 0); /* CFCE1 -> CS0_N */
+ select_peripheral(PE(20), PERIPH_A, 0); /* CFCE2 -> CS1_N */
+ select_peripheral(PE(21), PERIPH_A, 0); /* NCS4 -> OE_N */
+ select_peripheral(PE(23), PERIPH_A, 0); /* CFRNW -> DIR */
+ select_peripheral(PE(24), PERIPH_A, 0); /* NWAIT <- IORDY */
+ set_ebi_sfr_bits(HMATRIX_BIT(CS4A));
+ data->cs = 4;
+ break;
+ default:
+ return NULL;
+ }
+
+ at32_select_periph(extint_pin, GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
+
+ pdev->resource[1].start = EIM_IRQ_BASE + extint;
+ pdev->resource[1].end = pdev->resource[1].start;
+
+ memcpy(pdev->dev.platform_data, data, sizeof(struct ide_platform_data));
+
+ platform_device_register(pdev);
+
+ return pdev;
+}
+
+/* --------------------------------------------------------------------
* GCLK
* -------------------------------------------------------------------- */
static struct clk gclk0 = {
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 7dbd603..c18160f 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -44,6 +44,13 @@
struct platform_device *
at32_add_device_usba(unsigned int id, struct usba_platform_data *data);
+struct ide_platform_data {
+ u8 cs;
+};
+struct platform_device *
+at32_add_device_ide(unsigned int id, unsigned int extint,
+ struct ide_platform_data *data);
+
/* depending on what's hooked up, not all SSC pins will be used */
#define ATMEL_SSC_TK 0x01
#define ATMEL_SSC_TF 0x02