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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Synopsys, Inc. All rights reserved.
*/
#include <common.h>
#include <dwmmc.h>
#include <malloc.h>
DECLARE_GLOBAL_DATA_PTR;
#define ARC_PERIPHERAL_BASE 0xF0000000
#define SDIO_BASE (ARC_PERIPHERAL_BASE + 0x10000)
int board_mmc_init(bd_t *bis)
{
struct dwmci_host *host = NULL;
host = malloc(sizeof(struct dwmci_host));
if (!host) {
printf("dwmci_host malloc fail!\n");
return 1;
}
memset(host, 0, sizeof(struct dwmci_host));
host->name = "Synopsys Mobile storage";
host->ioaddr = (void *)SDIO_BASE;
host->buswidth = 4;
host->dev_index = 0;
host->bus_hz = 50000000;
add_dwmci(host, host->bus_hz / 2, 400000);
return 0;
}
int board_mmc_getcd(struct mmc *mmc)
{
struct dwmci_host *host = mmc->priv;
return !(dwmci_readl(host, DWMCI_CDETECT) & 1);
}
#define CREG_BASE 0xF0001000
#define CREG_BOOT_OFFSET 0
#define CREG_BOOT_WP_OFFSET 8
#define CGU_BASE 0xF0000000
#define CGU_IP_SW_RESET 0x0FF0
void reset_cpu(ulong addr)
{
writel(1, (u32 *)(CGU_BASE + CGU_IP_SW_RESET));
while (1)
; /* loop forever till reset */
}
static int do_emdk_rom(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
u32 creg_boot = readl((u32 *)(CREG_BASE + CREG_BOOT_OFFSET));
if (!strcmp(argv[1], "unlock"))
creg_boot &= ~BIT(CREG_BOOT_WP_OFFSET);
else if (!strcmp(argv[1], "lock"))
creg_boot |= BIT(CREG_BOOT_WP_OFFSET);
else
return CMD_RET_USAGE;
writel(creg_boot, (u32 *)(CREG_BASE + CREG_BOOT_OFFSET));
return CMD_RET_SUCCESS;
}
cmd_tbl_t cmd_emdk[] = {
U_BOOT_CMD_MKENT(rom, 2, 0, do_emdk_rom, "", ""),
};
static int do_emdk(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
cmd_tbl_t *c;
c = find_cmd_tbl(argv[1], cmd_emdk, ARRAY_SIZE(cmd_emdk));
/* Strip off leading 'emdk' command */
argc--;
argv++;
if (c == NULL || argc > c->maxargs)
return CMD_RET_USAGE;
return c->cmd(cmdtp, flag, argc, argv);
}
U_BOOT_CMD(
emdk, CONFIG_SYS_MAXARGS, 0, do_emdk,
"Synopsys EMDK specific commands",
"rom unlock - Unlock non-volatile memory for writing\n"
"emdk rom lock - Lock non-volatile memory to prevent writing\n"
);
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