mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 17:41:08 +00:00
41 lines
869 B
C
41 lines
869 B
C
|
/*
|
||
|
|
* Copyright (C) 2015 Atmel Corporation
|
||
|
|
* Wenyou.Yang <wenyou.yang@atmel.com>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <malloc.h>
|
||
|
|
#include <sdhci.h>
|
||
|
|
#include <asm/arch/clk.h>
|
||
|
|
|
||
|
|
#define ATMEL_SDHC_MIN_FREQ 400000
|
||
|
|
|
||
|
|
int atmel_sdhci_init(void *regbase, u32 id)
|
||
|
|
{
|
||
|
|
struct sdhci_host *host;
|
||
|
|
u32 max_clk, min_clk = ATMEL_SDHC_MIN_FREQ;
|
||
|
|
|
||
|
|
host = (struct sdhci_host *)calloc(1, sizeof(struct sdhci_host));
|
||
|
|
if (!host) {
|
||
|
|
printf("%s: sdhci_host calloc failed\n", __func__);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
host->name = "atmel_sdhci";
|
||
|
|
host->ioaddr = regbase;
|
||
|
|
host->quirks = 0;
|
||
|
|
host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
|
||
|
|
max_clk = at91_get_periph_generated_clk(id);
|
||
|
|
if (!max_clk) {
|
||
|
|
printf("%s: Failed to get the proper clock\n", __func__);
|
||
|
|
free(host);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
add_sdhci(host, max_clk, min_clk);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|