Old definition for the physmap-flash driver is incomplete:
- Use of an EGPIO without previous request
- Missing the MTD partitions
This patch fixes it. Read functionality was tested on the machine with
board_id 0x3a. Writing was not tested.
Signed-off-by: Petr Cvek <petr.c...@tul.cz>
---
arch/arm/mach-pxa/magician.c | 45 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 91b5ed0..8e8b122 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -788,20 +788,65 @@ static struct pxaohci_platform_data magician_ohci_info = {
* StrataFlash
*/
+static int magician_flash_init(struct platform_device *pdev)
+{
+ int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");
+
+ if (ret) {
+ pr_err("Cannot request flash enable GPIO (%i)\n", ret);
+ return ret;
+ }
+
+ ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
+ if (ret) {
+ pr_err("Cannot set direction for flash enable (%i)\n", ret);
+ gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
+ }
+
+ return ret;
+}
+
static void magician_set_vpp(struct platform_device *pdev, int vpp)
{
gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
}
+static void magician_flash_exit(struct platform_device *pdev)
+{
+ gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
+}
+
static struct resource strataflash_resource = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
};
+static struct mtd_partition magician_flash_parts[] = {
+ {
+ .name = "Bootloader",
+ .offset = 0x0,
+ .size = 0x40000,
+ .mask_flags = MTD_WRITEABLE, /* EXPERIMENTAL */
+ },
+ {
+ .name = "Linux Kernel",
+ .offset = 0x40000,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+/*
+ * physmap-flash driver
+ */
+
static struct physmap_flash_data strataflash_data = {
.width = 4,
+ .init = magician_flash_init,
.set_vpp = magician_set_vpp,
+ .exit = magician_flash_exit,
+ .parts = magician_flash_parts,
+ .nr_parts = ARRAY_SIZE(magician_flash_parts),
};
static struct platform_device strataflash = {
--
1.7.12.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
