diff options
| author | Håvard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-06-06 18:04:56 +0200 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2008-06-07 08:45:36 +0100 |
| commit | 62090a08aba579e6c69319fac4d4a1f806f26400 (patch) | |
| tree | 88af9ba2b768d06d8778018fff9639f95a663627 /arch/avr32 | |
| parent | e1677ce4e41a7c1bbc35a0dee27d5c7e7d223a4b (diff) | |
| download | linux-62090a08aba579e6c69319fac4d4a1f806f26400.tar.gz linux-62090a08aba579e6c69319fac4d4a1f806f26400.tar.xz | |
[MTD] [NAND] avr32: atmel_nand platform code for AT32AP700x
This function initializes and adds a platform_device for a NAND flash
interface on SMC chip select 3.
Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'arch/avr32')
| -rw-r--r-- | arch/avr32/mach-at32ap/at32ap700x.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c index 0f24b4f85c17..b65d3e0667a8 100644 --- a/arch/avr32/mach-at32ap/at32ap700x.c +++ b/arch/avr32/mach-at32ap/at32ap700x.c @@ -1730,6 +1730,58 @@ 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 = { |