Commit fdb902b6 authored by Petr Cvek's avatar Petr Cvek Committed by Robert Jarzmik
Browse files

ARM: pxa: magician: Fix support for Intel Strata NOR Flash 



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: default avatarPetr Cvek <petr.cvek@tul.cz>
Signed-off-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
parent 0f073e3e

arch/arm/mach-pxa/magician.c

+45 −0
Original line number Diff line number Diff line
@@ -710,20 +710,65 @@ 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 = {

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