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Commit a919619e authored by Paul Cercueil's avatar Paul Cercueil Committed by Miquel Raynal
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mtd: rawnand: ingenic: Rename jz4780_nand driver to ingenic_nand 

The jz4780_nand driver will be modified to handle all the Ingenic
JZ47xx SoCs that the upstream Linux kernel supports (JZ4740, JZ4725B,
JZ4770, JZ4780), so it makes sense to rename it.
Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 65bba52d
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Showing with 74 additions and 74 deletions
drivers/mtd/nand/raw/ingenic/Makefile
View file @ a919619e
obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o
obj-$(CONFIG_MTD_NAND_JZ4780) += jz4780_nand.o jz4780_bch.o
obj-$(CONFIG_MTD_NAND_JZ4780) += ingenic_nand.o jz4780_bch.o
drivers/mtd/nand/raw/ingenic/jz4780_nand.c → drivers/mtd/nand/raw/ingenic/ingenic_nand.c
View file @ a919619e
// SPDX-License-Identifier: GPL-2.0
/*
* JZ4780 NAND driver
* Ingenic JZ47xx NAND driver
*
* Copyright (c) 2015 Imagination Technologies
* Author: Alex Smith <alex.smith@imgtec.com>
......@@ -24,7 +24,7 @@
#include "jz4780_bch.h"
#define DRV_NAME "jz4780-nand"
#define DRV_NAME "ingenic-nand"
#define OFFSET_DATA 0x00000000
#define OFFSET_CMD 0x00400000
......@@ -33,22 +33,22 @@
/* Command delay when there is no R/B pin. */
#define RB_DELAY_US 100
struct jz4780_nand_cs {
struct ingenic_nand_cs {
unsigned int bank;
void __iomem *base;
};
struct jz4780_nand_controller {
struct ingenic_nfc {
struct device *dev;
struct jz4780_bch *bch;
struct nand_controller controller;
unsigned int num_banks;
struct list_head chips;
int selected;
struct jz4780_nand_cs cs[];
struct ingenic_nand_cs cs[];
};
struct jz4780_nand_chip {
struct ingenic_nand {
struct nand_chip chip;
struct list_head chip_list;
......@@ -57,22 +57,21 @@ struct jz4780_nand_chip {
unsigned int reading: 1;
};
static inline struct jz4780_nand_chip *to_jz4780_nand_chip(struct mtd_info *mtd)
static inline struct ingenic_nand *to_ingenic_nand(struct mtd_info *mtd)
{
return container_of(mtd_to_nand(mtd), struct jz4780_nand_chip, chip);
return container_of(mtd_to_nand(mtd), struct ingenic_nand, chip);
}
static inline struct jz4780_nand_controller
*to_jz4780_nand_controller(struct nand_controller *ctrl)
static inline struct ingenic_nfc *to_ingenic_nfc(struct nand_controller *ctrl)
{
return container_of(ctrl, struct jz4780_nand_controller, controller);
return container_of(ctrl, struct ingenic_nfc, controller);
}
static void jz4780_nand_select_chip(struct nand_chip *chip, int chipnr)
static void ingenic_nand_select_chip(struct nand_chip *chip, int chipnr)
{
struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip));
struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
struct jz4780_nand_cs *cs;
struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip));
struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller);
struct ingenic_nand_cs *cs;
/* Ensure the currently selected chip is deasserted. */
if (chipnr == -1 && nfc->selected >= 0) {
......@@ -83,12 +82,12 @@ static void jz4780_nand_select_chip(struct nand_chip *chip, int chipnr)
nfc->selected = chipnr;
}
static void jz4780_nand_cmd_ctrl(struct nand_chip *chip, int cmd,
unsigned int ctrl)
static void ingenic_nand_cmd_ctrl(struct nand_chip *chip, int cmd,
unsigned int ctrl)
{
struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip));
struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
struct jz4780_nand_cs *cs;
struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip));
struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller);
struct ingenic_nand_cs *cs;
if (WARN_ON(nfc->selected < 0))
return;
......@@ -106,25 +105,25 @@ static void jz4780_nand_cmd_ctrl(struct nand_chip *chip, int cmd,
writeb(cmd, cs->base + OFFSET_CMD);
}
static int jz4780_nand_dev_ready(struct nand_chip *chip)
static int ingenic_nand_dev_ready(struct nand_chip *chip)
{
struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip));
struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip));
return !gpiod_get_value_cansleep(nand->busy_gpio);
}
static void jz4780_nand_ecc_hwctl(struct nand_chip *chip, int mode)
static void ingenic_nand_ecc_hwctl(struct nand_chip *chip, int mode)
{
struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip));
struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip));
nand->reading = (mode == NAND_ECC_READ);
}
static int jz4780_nand_ecc_calculate(struct nand_chip *chip, const u8 *dat,
u8 *ecc_code)
static int ingenic_nand_ecc_calculate(struct nand_chip *chip, const u8 *dat,
u8 *ecc_code)
{
struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip));
struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip));
struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller);
struct jz4780_bch_params params;
/*
......@@ -141,11 +140,11 @@ static int jz4780_nand_ecc_calculate(struct nand_chip *chip, const u8 *dat,
return jz4780_bch_calculate(nfc->bch, &params, dat, ecc_code);
}
static int jz4780_nand_ecc_correct(struct nand_chip *chip, u8 *dat,
u8 *read_ecc, u8 *calc_ecc)
static int ingenic_nand_ecc_correct(struct nand_chip *chip, u8 *dat,
u8 *read_ecc, u8 *calc_ecc)
{
struct jz4780_nand_chip *nand = to_jz4780_nand_chip(nand_to_mtd(chip));
struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
struct ingenic_nand *nand = to_ingenic_nand(nand_to_mtd(chip));
struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller);
struct jz4780_bch_params params;
params.size = nand->chip.ecc.size;
......@@ -155,10 +154,10 @@ static int jz4780_nand_ecc_correct(struct nand_chip *chip, u8 *dat,
return jz4780_bch_correct(nfc->bch, &params, dat, read_ecc);
}
static int jz4780_nand_attach_chip(struct nand_chip *chip)
static int ingenic_nand_attach_chip(struct nand_chip *chip)
{
struct mtd_info *mtd = nand_to_mtd(chip);
struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller);
struct ingenic_nfc *nfc = to_ingenic_nfc(chip->controller);
int eccbytes;
chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) *
......@@ -167,14 +166,13 @@ static int jz4780_nand_attach_chip(struct nand_chip *chip)
switch (chip->ecc.mode) {
case NAND_ECC_HW:
if (!nfc->bch) {
dev_err(nfc->dev,
"HW BCH selected, but BCH controller not found\n");
dev_err(nfc->dev, "HW BCH selected, but BCH controller not found\n");
return -ENODEV;
}
chip->ecc.hwctl = jz4780_nand_ecc_hwctl;
chip->ecc.calculate = jz4780_nand_ecc_calculate;
chip->ecc.correct = jz4780_nand_ecc_correct;
chip->ecc.hwctl = ingenic_nand_ecc_hwctl;
chip->ecc.calculate = ingenic_nand_ecc_calculate;
chip->ecc.correct = ingenic_nand_ecc_correct;
/* fall through */
case NAND_ECC_SOFT:
dev_info(nfc->dev, "using %s (strength %d, size %d, bytes %d)\n",
......@@ -209,18 +207,18 @@ static int jz4780_nand_attach_chip(struct nand_chip *chip)
return 0;
}
static const struct nand_controller_ops jz4780_nand_controller_ops = {
.attach_chip = jz4780_nand_attach_chip,
static const struct nand_controller_ops ingenic_nand_controller_ops = {
.attach_chip = ingenic_nand_attach_chip,
};
static int jz4780_nand_init_chip(struct platform_device *pdev,
struct jz4780_nand_controller *nfc,
struct device_node *np,
unsigned int chipnr)
static int ingenic_nand_init_chip(struct platform_device *pdev,
struct ingenic_nfc *nfc,
struct device_node *np,
unsigned int chipnr)
{
struct device *dev = &pdev->dev;
struct jz4780_nand_chip *nand;
struct jz4780_nand_cs *cs;
struct ingenic_nand *nand;
struct ingenic_nand_cs *cs;
struct resource *res;
struct nand_chip *chip;
struct mtd_info *mtd;
......@@ -253,7 +251,7 @@ static int jz4780_nand_init_chip(struct platform_device *pdev,
dev_err(dev, "failed to request busy GPIO: %d\n", ret);
return ret;
} else if (nand->busy_gpio) {
nand->chip.legacy.dev_ready = jz4780_nand_dev_ready;
nand->chip.legacy.dev_ready = ingenic_nand_dev_ready;
}
nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW);
......@@ -276,13 +274,13 @@ static int jz4780_nand_init_chip(struct platform_device *pdev,
chip->legacy.IO_ADDR_W = cs->base + OFFSET_DATA;
chip->legacy.chip_delay = RB_DELAY_US;
chip->options = NAND_NO_SUBPAGE_WRITE;
chip->legacy.select_chip = jz4780_nand_select_chip;
chip->legacy.cmd_ctrl = jz4780_nand_cmd_ctrl;
chip->legacy.select_chip = ingenic_nand_select_chip;
chip->legacy.cmd_ctrl = ingenic_nand_cmd_ctrl;
chip->ecc.mode = NAND_ECC_HW;
chip->controller = &nfc->controller;
nand_set_flash_node(chip, np);
chip->controller->ops = &jz4780_nand_controller_ops;
chip->controller->ops = &ingenic_nand_controller_ops;
ret = nand_scan(chip, 1);
if (ret)
return ret;
......@@ -298,19 +296,20 @@ static int jz4780_nand_init_chip(struct platform_device *pdev,
return 0;
}
static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc)
static void ingenic_nand_cleanup_chips(struct ingenic_nfc *nfc)
{
struct jz4780_nand_chip *chip;
struct ingenic_nand *chip;
while (!list_empty(&nfc->chips)) {
chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list);
chip = list_first_entry(&nfc->chips,
struct ingenic_nand, chip_list);
nand_release(&chip->chip);
list_del(&chip->chip_list);
}
}
static int jz4780_nand_init_chips(struct jz4780_nand_controller *nfc,
struct platform_device *pdev)
static int ingenic_nand_init_chips(struct ingenic_nfc *nfc,
struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np;
......@@ -319,14 +318,15 @@ static int jz4780_nand_init_chips(struct jz4780_nand_controller *nfc,
int num_chips = of_get_child_count(dev->of_node);
if (num_chips > nfc->num_banks) {
dev_err(dev, "found %d chips but only %d banks\n", num_chips, nfc->num_banks);
dev_err(dev, "found %d chips but only %d banks\n",
num_chips, nfc->num_banks);
return -EINVAL;
}
for_each_child_of_node(dev->of_node, np) {
ret = jz4780_nand_init_chip(pdev, nfc, np, i);
ret = ingenic_nand_init_chip(pdev, nfc, np, i);
if (ret) {
jz4780_nand_cleanup_chips(nfc);
ingenic_nand_cleanup_chips(nfc);
return ret;
}
......@@ -336,11 +336,11 @@ static int jz4780_nand_init_chips(struct jz4780_nand_controller *nfc,
return 0;
}
static int jz4780_nand_probe(struct platform_device *pdev)
static int ingenic_nand_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
unsigned int num_banks;
struct jz4780_nand_controller *nfc;
struct ingenic_nfc *nfc;
int ret;
num_banks = jz4780_nemc_num_banks(dev);
......@@ -367,7 +367,7 @@ static int jz4780_nand_probe(struct platform_device *pdev)
nand_controller_init(&nfc->controller);
INIT_LIST_HEAD(&nfc->chips);
ret = jz4780_nand_init_chips(nfc, pdev);
ret = ingenic_nand_init_chips(nfc, pdev);
if (ret) {
if (nfc->bch)
jz4780_bch_release(nfc->bch);
......@@ -378,35 +378,35 @@ static int jz4780_nand_probe(struct platform_device *pdev)
return 0;
}
static int jz4780_nand_remove(struct platform_device *pdev)
static int ingenic_nand_remove(struct platform_device *pdev)
{
struct jz4780_nand_controller *nfc = platform_get_drvdata(pdev);
struct ingenic_nfc *nfc = platform_get_drvdata(pdev);
if (nfc->bch)
jz4780_bch_release(nfc->bch);
jz4780_nand_cleanup_chips(nfc);
ingenic_nand_cleanup_chips(nfc);
return 0;
}
static const struct of_device_id jz4780_nand_dt_match[] = {
static const struct of_device_id ingenic_nand_dt_match[] = {
{ .compatible = "ingenic,jz4780-nand" },
{},
};
MODULE_DEVICE_TABLE(of, jz4780_nand_dt_match);
MODULE_DEVICE_TABLE(of, ingenic_nand_dt_match);
static struct platform_driver jz4780_nand_driver = {
.probe = jz4780_nand_probe,
.remove = jz4780_nand_remove,
static struct platform_driver ingenic_nand_driver = {
.probe = ingenic_nand_probe,
.remove = ingenic_nand_remove,
.driver = {
.name = DRV_NAME,
.of_match_table = of_match_ptr(jz4780_nand_dt_match),
.of_match_table = of_match_ptr(ingenic_nand_dt_match),
},
};
module_platform_driver(jz4780_nand_driver);
module_platform_driver(ingenic_nand_driver);
MODULE_AUTHOR("Alex Smith <alex@alex-smith.me.uk>");
MODULE_AUTHOR("Harvey Hunt <harveyhuntnexus@gmail.com>");
MODULE_DESCRIPTION("Ingenic JZ4780 NAND driver");
MODULE_DESCRIPTION("Ingenic JZ47xx NAND driver");
MODULE_LICENSE("GPL v2");
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