summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorHåvard Skinnemoen <haavard.skinnemoen@atmel.com>2008-06-06 18:04:56 +0200
committerDavid Woodhouse <dwmw2@infradead.org>2008-06-07 08:45:36 +0100
commit62090a08aba579e6c69319fac4d4a1f806f26400 (patch)
tree88af9ba2b768d06d8778018fff9639f95a663627 /arch
parente1677ce4e41a7c1bbc35a0dee27d5c7e7d223a4b (diff)
downloadop-kernel-dev-62090a08aba579e6c69319fac4d4a1f806f26400.zip
op-kernel-dev-62090a08aba579e6c69319fac4d4a1f806f26400.tar.gz
[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')
-rw-r--r--arch/avr32/mach-at32ap/at32ap700x.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 0f24b4f8..b65d3e0 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 = {
OpenPOWER on IntegriCloud