| /* |
| * (C) Copyright 2015 Linaro |
| * peter.griffin <peter.griffin@linaro.org> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <dwmmc.h> |
| #include <malloc.h> |
| #include <asm-generic/errno.h> |
| |
| #define DWMMC_MAX_CH_NUM 4 |
| |
| #define DWMMC_MAX_FREQ 50000000 |
| #define DWMMC_MIN_FREQ 400000 |
| |
| /* Source clock is configured to 100MHz by ATF bl1*/ |
| #define MMC0_DEFAULT_FREQ 100000000 |
| |
| static int hi6220_dwmci_core_init(struct dwmci_host *host, int index) |
| { |
| host->name = "HiKey DWMMC"; |
| |
| host->dev_index = index; |
| |
| /* Add the mmc channel to be registered with mmc core */ |
| if (add_dwmci(host, DWMMC_MAX_FREQ, DWMMC_MIN_FREQ)) { |
| printf("DWMMC%d registration failed\n", index); |
| return -1; |
| } |
| return 0; |
| } |
| |
| /* |
| * This function adds the mmc channel to be registered with mmc core. |
| * index - mmc channel number. |
| * regbase - register base address of mmc channel specified in 'index'. |
| * bus_width - operating bus width of mmc channel specified in 'index'. |
| */ |
| int hi6220_dwmci_add_port(int index, u32 regbase, int bus_width) |
| { |
| struct dwmci_host *host = NULL; |
| |
| host = calloc(1, sizeof(struct dwmci_host)); |
| if (!host) { |
| error("dwmci_host calloc failed!\n"); |
| return -ENOMEM; |
| } |
| |
| host->ioaddr = (void *)(ulong)regbase; |
| host->buswidth = bus_width; |
| host->bus_hz = MMC0_DEFAULT_FREQ; |
| |
| return hi6220_dwmci_core_init(host, index); |
| } |