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// SPDX-License-Identifier: GPL-2.0+
/*
*
* Driver interface derived from:
* /cmd/host.c
* Copyright (c) 2012, Google Inc.
*
* Copyright (C) 2023 Johan Jonker <jbx6244@gmail.com>
*/
#include <blk.h>
#include <command.h>
#include <dm.h>
#include <rkmtd.h>
#include <stdio.h>
#include <dm/device-internal.h>
#include <dm/uclass-internal.h>
static int do_rkmtd_bind(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
const char *label;
int ret;
argc--;
argv++;
if (argc < 1)
return CMD_RET_USAGE;
if (argc > 1)
return CMD_RET_USAGE;
label = argv[0];
ret = rkmtd_create_attach_mtd(label, &dev);
if (ret) {
printf("Cannot create device / bind mtd\n");
return CMD_RET_FAILURE;
}
return 0;
}
static struct udevice *parse_rkmtd_label(const char *label)
{
struct udevice *dev;
dev = rkmtd_find_by_label(label);
if (!dev) {
int devnum;
char *ep;
devnum = hextoul(label, &ep);
if (*ep ||
uclass_find_device_by_seq(UCLASS_RKMTD, devnum, &dev)) {
printf("No such device '%s'\n", label);
return NULL;
}
}
return dev;
}
static int do_rkmtd_unbind(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
const char *label;
int ret;
if (argc < 2)
return CMD_RET_USAGE;
label = argv[1];
dev = parse_rkmtd_label(label);
if (!dev)
return CMD_RET_FAILURE;
ret = rkmtd_detach(dev);
if (ret) {
printf("Cannot detach mtd\n");
return CMD_RET_FAILURE;
}
ret = device_unbind(dev);
if (ret) {
printf("Cannot unbind device '%s'\n", dev->name);
return CMD_RET_FAILURE;
}
return 0;
}
static void show_rkmtd_dev(struct udevice *dev)
{
struct rkmtd_dev *plat = dev_get_plat(dev);
struct blk_desc *desc;
struct udevice *blk;
int ret;
printf("%3d ", dev_seq(dev));
ret = blk_get_from_parent(dev, &blk);
if (ret)
return;
desc = dev_get_uclass_plat(blk);
printf("%12lu %-15s\n", (unsigned long)desc->lba, plat->label);
}
static int do_rkmtd_info(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
if (argc < 1)
return CMD_RET_USAGE;
dev = NULL;
if (argc >= 2) {
dev = parse_rkmtd_label(argv[1]);
if (!dev)
return CMD_RET_FAILURE;
}
printf("%3s %12s %-15s\n", "dev", "blocks", "label");
if (dev) {
show_rkmtd_dev(dev);
} else {
struct uclass *uc;
uclass_id_foreach_dev(UCLASS_RKMTD, dev, uc)
show_rkmtd_dev(dev);
}
return 0;
}
static int do_rkmtd_dev(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
const char *label;
if (argc < 1 || argc > 3)
return CMD_RET_USAGE;
if (argc == 1) {
struct rkmtd_dev *plat;
dev = rkmtd_get_cur_dev();
if (!dev) {
printf("No current rkmtd device\n");
return CMD_RET_FAILURE;
}
plat = dev_get_plat(dev);
printf("Current rkmtd device: %d: %s\n", dev_seq(dev),
plat->label);
return 0;
}
label = argv[1];
dev = parse_rkmtd_label(argv[1]);
if (!dev)
return CMD_RET_FAILURE;
rkmtd_set_cur_dev(dev);
return 0;
}
static struct cmd_tbl cmd_rkmtd_sub[] = {
U_BOOT_CMD_MKENT(bind, 4, 0, do_rkmtd_bind, "", ""),
U_BOOT_CMD_MKENT(unbind, 4, 0, do_rkmtd_unbind, "", ""),
U_BOOT_CMD_MKENT(info, 3, 0, do_rkmtd_info, "", ""),
U_BOOT_CMD_MKENT(dev, 0, 1, do_rkmtd_dev, "", ""),
};
static int do_rkmtd(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct cmd_tbl *c;
argc--;
argv++;
c = find_cmd_tbl(argv[0], cmd_rkmtd_sub, ARRAY_SIZE(cmd_rkmtd_sub));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
return CMD_RET_USAGE;
}
U_BOOT_CMD(
rkmtd, 8, 1, do_rkmtd,
"Rockchip MTD sub-system",
"bind <label> - bind RKMTD device\n"
"rkmtd unbind <label> - unbind RKMTD device\n"
"rkmtd info [<label>] - show all available RKMTD devices\n"
"rkmtd dev [<label>] - show or set current RKMTD device\n"
);
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