2 * (C) Copyright 2015 Linaro
3 * peter.griffin <peter.griffin@linaro.org>
5 * SPDX-License-Identifier: GPL-2.0+
11 #include <asm-generic/errno.h>
13 #define DWMMC_MAX_CH_NUM 4
15 #define DWMMC_MAX_FREQ 50000000
16 #define DWMMC_MIN_FREQ 400000
18 /* Source clock is configured to 100MHz by ATF bl1*/
19 #define MMC0_DEFAULT_FREQ 100000000
21 static int hi6220_dwmci_core_init(struct dwmci_host *host, int index)
23 host->name = "HiKey DWMMC";
25 host->dev_index = index;
27 /* Add the mmc channel to be registered with mmc core */
28 if (add_dwmci(host, DWMMC_MAX_FREQ, DWMMC_MIN_FREQ)) {
29 printf("DWMMC%d registration failed\n", index);
36 * This function adds the mmc channel to be registered with mmc core.
37 * index - mmc channel number.
38 * regbase - register base address of mmc channel specified in 'index'.
39 * bus_width - operating bus width of mmc channel specified in 'index'.
41 int hi6220_dwmci_add_port(int index, u32 regbase, int bus_width)
43 struct dwmci_host *host = NULL;
45 host = calloc(1, sizeof(struct dwmci_host));
47 error("dwmci_host calloc failed!\n");
51 host->ioaddr = (void *)(ulong)regbase;
52 host->buswidth = bus_width;
53 host->bus_hz = MMC0_DEFAULT_FREQ;
55 return hi6220_dwmci_core_init(host, index);