system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-21 18:59:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge remote-tracking branch 'roger/for-v3.17/gpmc-omap' into omap-for-v3.17/fixes-not-urgent

Browse source
This commit is contained in:
Tony Lindgren 2014-07-15 00:24:39 -07:00
parent e6f990a883 97a288ba2c
commit 00e4e5b5b0
1 changed files with 37 additions and 42 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

79
arch/arm/mach-omap2/gpmc-nand.c
View file

@ -24,25 +24,6 @@
/* minimum size for IO mapping */
#define NAND_IO_SIZE 4
static struct resource gpmc_nand_resource[] = {
{
.flags = IORESOURCE_MEM,
},
{
.flags = IORESOURCE_IRQ,
},
{
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device gpmc_nand_device = {
.name = "omap2-nand",
.id = 0,
.num_resources = ARRAY_SIZE(gpmc_nand_resource),
.resource = gpmc_nand_resource,
};
static bool gpmc_hwecc_bch_capable(enum omap_ecc ecc_opt)
{
/* platforms which support all ECC schemes */
@ -93,43 +74,41 @@ int gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data,
{
int err = 0;
struct gpmc_settings s;
struct device *dev = &gpmc_nand_device.dev;
struct platform_device *pdev;
struct resource gpmc_nand_res[] = {
{ .flags = IORESOURCE_MEM, },
{ .flags = IORESOURCE_IRQ, },
{ .flags = IORESOURCE_IRQ, },
};
memset(&s, 0, sizeof(struct gpmc_settings));
gpmc_nand_device.dev.platform_data = gpmc_nand_data;
BUG_ON(gpmc_nand_data->cs >= GPMC_CS_NUM);
err = gpmc_cs_request(gpmc_nand_data->cs, NAND_IO_SIZE,
(unsigned long *)&gpmc_nand_resource[0].start);
(unsigned long *)&gpmc_nand_res[0].start);
if (err < 0) {
dev_err(dev, "Cannot request GPMC CS %d, error %d\n",
gpmc_nand_data->cs, err);
pr_err("omap2-gpmc: Cannot request GPMC CS %d, error %d\n",
gpmc_nand_data->cs, err);
return err;
}
gpmc_nand_resource[0].end = gpmc_nand_resource[0].start +
NAND_IO_SIZE - 1;
gpmc_nand_resource[1].start =
gpmc_get_client_irq(GPMC_IRQ_FIFOEVENTENABLE);
gpmc_nand_resource[2].start =
gpmc_get_client_irq(GPMC_IRQ_COUNT_EVENT);
gpmc_nand_res[0].end = gpmc_nand_res[0].start + NAND_IO_SIZE - 1;
gpmc_nand_res[1].start = gpmc_get_client_irq(GPMC_IRQ_FIFOEVENTENABLE);
gpmc_nand_res[2].start = gpmc_get_client_irq(GPMC_IRQ_COUNT_EVENT);
if (gpmc_t) {
err = gpmc_cs_set_timings(gpmc_nand_data->cs, gpmc_t);
if (err < 0) {
dev_err(dev, "Unable to set gpmc timings: %d\n", err);
pr_err("omap2-gpmc: Unable to set gpmc timings: %d\n", err);
return err;
}
}
memset(&s, 0, sizeof(struct gpmc_settings));
if (gpmc_nand_data->of_node)
gpmc_read_settings_dt(gpmc_nand_data->of_node, &s);
else
gpmc_set_legacy(gpmc_nand_data, &s);
s.device_nand = true;
err = gpmc_cs_program_settings(gpmc_nand_data->cs, &s);
if (err < 0)
goto out_free_cs;
@ -141,18 +120,34 @@ int gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data,
gpmc_update_nand_reg(&gpmc_nand_data->reg, gpmc_nand_data->cs);
if (!gpmc_hwecc_bch_capable(gpmc_nand_data->ecc_opt)) {
dev_err(dev, "Unsupported NAND ECC scheme selected\n");
return -EINVAL;
pr_err("omap2-nand: Unsupported NAND ECC scheme selected\n");
err = -EINVAL;
goto out_free_cs;
}
err = platform_device_register(&gpmc_nand_device);
if (err < 0) {
dev_err(dev, "Unable to register NAND device\n");
goto out_free_cs;
pdev = platform_device_alloc("omap2-nand", gpmc_nand_data->cs);
if (pdev) {
err = platform_device_add_resources(pdev, gpmc_nand_res,
ARRAY_SIZE(gpmc_nand_res));
if (!err)
pdev->dev.platform_data = gpmc_nand_data;
} else {
err = -ENOMEM;
}
if (err)
goto out_free_pdev;
err = platform_device_add(pdev);
if (err) {
dev_err(&pdev->dev, "Unable to register NAND device\n");
goto out_free_pdev;
}
return 0;
out_free_pdev:
platform_device_put(pdev);
out_free_cs:
gpmc_cs_free(gpmc_nand_data->cs);