blob: fdaf1e40bce6a45b7935c1bec9e5c91db15d3e20 [file] [log] [blame]
Peter Griffin447da582015-07-30 18:55:22 +01001/*
2 * (C) Copyright 2015 Linaro
3 * peter.griffin <peter.griffin@linaro.org>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#include <common.h>
9#include <dwmmc.h>
10#include <malloc.h>
Masahiro Yamada5d97dff2016-09-21 11:28:57 +090011#include <linux/errno.h>
Peter Griffin447da582015-07-30 18:55:22 +010012
13#define DWMMC_MAX_CH_NUM 4
14
15#define DWMMC_MAX_FREQ 50000000
16#define DWMMC_MIN_FREQ 400000
17
18/* Source clock is configured to 100MHz by ATF bl1*/
19#define MMC0_DEFAULT_FREQ 100000000
20
21static int hi6220_dwmci_core_init(struct dwmci_host *host, int index)
22{
23 host->name = "HiKey DWMMC";
24
25 host->dev_index = index;
26
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);
30 return -1;
31 }
32 return 0;
33}
34
35/*
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'.
40 */
41int hi6220_dwmci_add_port(int index, u32 regbase, int bus_width)
42{
43 struct dwmci_host *host = NULL;
44
45 host = calloc(1, sizeof(struct dwmci_host));
46 if (!host) {
47 error("dwmci_host calloc failed!\n");
48 return -ENOMEM;
49 }
50
Prabhakar Kushwaha41f7be32015-10-25 13:18:25 +053051 host->ioaddr = (void *)(ulong)regbase;
Peter Griffin447da582015-07-30 18:55:22 +010052 host->buswidth = bus_width;
53 host->bus_hz = MMC0_DEFAULT_FREQ;
54
55 return hi6220_dwmci_core_init(host, index);
56}