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nand: vybrid: Extend the vf610 NFC NAND driver to support device tree (and DM)

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This commit adds support for device tree and enumeration via device model
for the Vybrid's NFC NAND driver.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2018-12-03 10:24:51 +01:00 committed by Stefano Babic
parent 8a12d127d7
commit acdf10e179
1 changed files with 47 additions and 0 deletions
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47
drivers/mtd/nand/raw/vf610_nfc.c
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@ -31,6 +31,11 @@
#include <nand.h>
#include <errno.h>
#include <asm/io.h>
#if CONFIG_NAND_VF610_NFC_DT
#include <dm.h>
#include <linux/io.h>
#include <linux/ioport.h>
#endif
/* Register Offsets */
#define NFC_FLASH_CMD1 0x3F00
@ -760,9 +765,51 @@ error:
return err;
}
#if CONFIG_NAND_VF610_NFC_DT
static const struct udevice_id vf610_nfc_dt_ids[] = {
{
.compatible = "fsl,vf610-nfc",
},
{ /* sentinel */ }
};
static int vf610_nfc_dt_probe(struct udevice *dev)
{
struct resource res;
int ret;
ret = dev_read_resource(dev, 0, &res);
if (ret)
return ret;
return vf610_nfc_nand_init(0, devm_ioremap(dev, res.start,
resource_size(&res)));
}
U_BOOT_DRIVER(vf610_nfc_dt) = {
.name = "vf610-nfc-dt",
.id = UCLASS_MTD,
.of_match = vf610_nfc_dt_ids,
.probe = vf610_nfc_dt_probe,
};
void board_nand_init(void)
{
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_MTD,
DM_GET_DRIVER(vf610_nfc_dt),
&dev);
if (ret && ret != -ENODEV)
pr_err("Failed to initialize NAND controller. (error %d)\n",
ret);
}
#else
void board_nand_init(void)
{
int err = vf610_nfc_nand_init(0, (void __iomem *)CONFIG_SYS_NAND_BASE);
if (err)
printf("VF610 NAND init failed (err %d)\n", err);
}
#endif /* CONFIG_NAND_VF610_NFC_DT */