mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 13:14:27 +00:00
cd93d625fd
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <memalign.h>
|
|
#include <nand.h>
|
|
#include <linux/bitops.h>
|
|
#include <linux/err.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/io.h>
|
|
#include <linux/ioport.h>
|
|
#include <dm.h>
|
|
|
|
#include "brcmnand.h"
|
|
|
|
struct bcm63158_nand_soc {
|
|
struct brcmnand_soc soc;
|
|
void __iomem *base;
|
|
};
|
|
|
|
#define BCM63158_NAND_INT 0x00
|
|
#define BCM63158_NAND_STATUS_SHIFT 0
|
|
#define BCM63158_NAND_STATUS_MASK (0xfff << BCM63158_NAND_STATUS_SHIFT)
|
|
|
|
#define BCM63158_NAND_INT_EN 0x04
|
|
#define BCM63158_NAND_ENABLE_SHIFT 0
|
|
#define BCM63158_NAND_ENABLE_MASK (0xffff << BCM63158_NAND_ENABLE_SHIFT)
|
|
|
|
enum {
|
|
BCM63158_NP_READ = BIT(0),
|
|
BCM63158_BLOCK_ERASE = BIT(1),
|
|
BCM63158_COPY_BACK = BIT(2),
|
|
BCM63158_PAGE_PGM = BIT(3),
|
|
BCM63158_CTRL_READY = BIT(4),
|
|
BCM63158_DEV_RBPIN = BIT(5),
|
|
BCM63158_ECC_ERR_UNC = BIT(6),
|
|
BCM63158_ECC_ERR_CORR = BIT(7),
|
|
};
|
|
|
|
static bool bcm63158_nand_intc_ack(struct brcmnand_soc *soc)
|
|
{
|
|
struct bcm63158_nand_soc *priv =
|
|
container_of(soc, struct bcm63158_nand_soc, soc);
|
|
void __iomem *mmio = priv->base + BCM63158_NAND_INT;
|
|
u32 val = brcmnand_readl(mmio);
|
|
|
|
if (val & (BCM63158_CTRL_READY << BCM63158_NAND_STATUS_SHIFT)) {
|
|
/* Ack interrupt */
|
|
val &= ~BCM63158_NAND_STATUS_MASK;
|
|
val |= BCM63158_CTRL_READY << BCM63158_NAND_STATUS_SHIFT;
|
|
brcmnand_writel(val, mmio);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void bcm63158_nand_intc_set(struct brcmnand_soc *soc, bool en)
|
|
{
|
|
struct bcm63158_nand_soc *priv =
|
|
container_of(soc, struct bcm63158_nand_soc, soc);
|
|
void __iomem *mmio = priv->base + BCM63158_NAND_INT_EN;
|
|
u32 val = brcmnand_readl(mmio);
|
|
|
|
/* Don't ack any interrupts */
|
|
val &= ~BCM63158_NAND_STATUS_MASK;
|
|
|
|
if (en)
|
|
val |= BCM63158_CTRL_READY << BCM63158_NAND_ENABLE_SHIFT;
|
|
else
|
|
val &= ~(BCM63158_CTRL_READY << BCM63158_NAND_ENABLE_SHIFT);
|
|
|
|
brcmnand_writel(val, mmio);
|
|
}
|
|
|
|
static int bcm63158_nand_probe(struct udevice *dev)
|
|
{
|
|
struct udevice *pdev = dev;
|
|
struct bcm63158_nand_soc *priv = dev_get_priv(dev);
|
|
struct brcmnand_soc *soc;
|
|
struct resource res;
|
|
|
|
soc = &priv->soc;
|
|
|
|
dev_read_resource_byname(pdev, "nand-int-base", &res);
|
|
priv->base = devm_ioremap(dev, res.start, resource_size(&res));
|
|
if (IS_ERR(priv->base))
|
|
return PTR_ERR(priv->base);
|
|
|
|
soc->ctlrdy_ack = bcm63158_nand_intc_ack;
|
|
soc->ctlrdy_set_enabled = bcm63158_nand_intc_set;
|
|
|
|
/* Disable and ack all interrupts */
|
|
brcmnand_writel(0, priv->base + BCM63158_NAND_INT_EN);
|
|
brcmnand_writel(0, priv->base + BCM63158_NAND_INT);
|
|
|
|
return brcmnand_probe(pdev, soc);
|
|
}
|
|
|
|
static const struct udevice_id bcm63158_nand_dt_ids[] = {
|
|
{
|
|
.compatible = "brcm,nand-bcm63158",
|
|
},
|
|
{ /* sentinel */ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(bcm63158_nand) = {
|
|
.name = "bcm63158-nand",
|
|
.id = UCLASS_MTD,
|
|
.of_match = bcm63158_nand_dt_ids,
|
|
.probe = bcm63158_nand_probe,
|
|
.priv_auto_alloc_size = sizeof(struct bcm63158_nand_soc),
|
|
};
|
|
|
|
void board_nand_init(void)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
ret = uclass_get_device_by_driver(UCLASS_MTD,
|
|
DM_GET_DRIVER(bcm63158_nand), &dev);
|
|
if (ret && ret != -ENODEV)
|
|
pr_err("Failed to initialize %s. (error %d)\n", dev->name,
|
|
ret);
|
|
}
|