Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ARM: OMAP2+: gpmc-onenand: provide memory as resource

Browse source 
Currently omap onenand driver invokes gpmc_cs_request, obtains address
space allocated by gpmc to onenand. Remove this, instead use resource
structure; this is now updated with address space for onenand by gpmc
initialization with the help of gpmc_cs_request. And remove usage of
gpmc_cs_request in onenand driver.

This helps in smooth migration of gpmc to driver.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Afzal Mohammed 2012-08-30 12:53:23 -07:00 • committed by Tony Lindgren
parent 9222e3a7bb
commit 681988ba0c
1 changed files with 22 additions and 1 deletions

23
arch/arm/mach-omap2/gpmc-onenand.c
View file

@ -23,11 +23,19 @@
#include <plat/board.h>
#include <plat/gpmc.h>
#define ONENAND_IO_SIZE SZ_128K
static struct omap_onenand_platform_data *gpmc_onenand_data;
static struct resource gpmc_onenand_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device gpmc_onenand_device = {
.name = "omap2-onenand",
.id = -1,
.num_resources = 1,
.resource = &gpmc_onenand_resource,
};
static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base)
@ -390,6 +398,8 @@ static int gpmc_onenand_setup(void __iomem *onenand_base, int *freq_ptr)
void __init gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
{
int err;
gpmc_onenand_data = _onenand_data;
gpmc_onenand_data->onenand_setup = gpmc_onenand_setup;
gpmc_onenand_device.dev.platform_data = gpmc_onenand_data;
@ -401,8 +411,19 @@ void __init gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
gpmc_onenand_data->flags |= ONENAND_SYNC_READ;
}
err = gpmc_cs_request(gpmc_onenand_data->cs, ONENAND_IO_SIZE,
(unsigned long *)&gpmc_onenand_resource.start);
if (err < 0) {
pr_err("%s: Cannot request GPMC CS\n", __func__);
return;
}
gpmc_onenand_resource.end = gpmc_onenand_resource.start +
ONENAND_IO_SIZE - 1;
if (platform_device_register(&gpmc_onenand_device) < 0) {
printk(KERN_ERR "Unable to register OneNAND device\n");
pr_err("%s: Unable to register OneNAND device\n", __func__);
gpmc_cs_free(gpmc_onenand_data->cs);
return;
}
}