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| author | Kristoffer Nyborg Gregertsen <kngregertsen@norway.atmel.com> | 2007-08-16 13:45:00 +0200 |
|---|---|---|
| committer | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2007-10-23 11:19:05 +0200 |
| commit | 48021bd93ca339fcafe9b043d05f5d3a58be7c0a (patch) | |
| tree | 25a4f0a3880a62b948295ad73c5f81ec8cacddf4 | |
| parent | 55b70a0300b873c0ec7ea6e33752af56f41250ce (diff) | |
| download | lwn-48021bd93ca339fcafe9b043d05f5d3a58be7c0a.tar.gz lwn-48021bd93ca339fcafe9b043d05f5d3a58be7c0a.zip | |
[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>
| -rw-r--r-- | arch/avr32/mach-at32ap/at32ap7000.c | 65 | ||||
| -rw-r--r-- | include/asm-avr32/arch-at32ap/board.h | 7 |
2 files changed, 72 insertions, 0 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index f6d154ca4d24..30aedc9473f7 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c @@ -1228,6 +1228,71 @@ out_free_pdev: } /* -------------------------------------------------------------------- + * 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 7dbd603c38cc..c18160f29cbd 100644 --- a/include/asm-avr32/arch-at32ap/board.h +++ b/include/asm-avr32/arch-at32ap/board.h @@ -44,6 +44,13 @@ struct usba_platform_data { 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 |