From 48021bd93ca339fcafe9b043d05f5d3a58be7c0a Mon Sep 17 00:00:00 2001 From: Kristoffer Nyborg Gregertsen Date: Thu, 16 Aug 2007 13:45:00 +0200 Subject: [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 Signed-off-by: Haavard Skinnemoen --- arch/avr32/mach-at32ap/at32ap7000.c | 65 +++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) (limited to 'arch/avr32') diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index f6d154ca4d2..30aedc9473f 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c @@ -1227,6 +1227,71 @@ out_free_pdev: return NULL; } +/* -------------------------------------------------------------------- + * 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 * -------------------------------------------------------------------- */ -- cgit v1.2.3-70-g09d2