[U-Boot] [PATCH 5/6] mmc: hi6220_dw_mmc: Add hi6220 glue code for dw_mmc controller.

[Marek Vasut <marex@denx.de>]

On Tuesday, May 12, 2015 at 03:38:31 PM, Peter Griffin wrote:
> This patch adds the glue code for hi6220 SoC which has 2x synopsis
> dw_mmc controllers. This will be used by the hikey board support
> in subsequent patches.
> 
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>

[...]

> diff --git a/drivers/mmc/hi6220_dw_mmc.c b/drivers/mmc/hi6220_dw_mmc.c
> new file mode 100644
> index 0000000..a3880a3
> --- /dev/null
> +++ b/drivers/mmc/hi6220_dw_mmc.c
> @@ -0,0 +1,63 @@
> +/*
> + * (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			52000000
> +#define	DWMMC_MIN_FREQ			400000
> +*/

Please zap these dead macros.

> +/*TODO we should probably use the frequencies above, but ATF uses
> +  the ones below so stick with that for the moment */
> +#define	DWMMC_MAX_FREQ			50000000
> +#define	DWMMC_MIN_FREQ			378000
> +
> +/* Source clock is configured to 100Mhz by ATF bl1*/
> +#define MMC0_DEFAULT_FREQ		100000000

[...]

> +int hi6220_dwmci_add_port(int index, u32 regbase, int bus_width)
> +{
> +	struct dwmci_host *host = NULL;
> +
> +	host = malloc(sizeof(struct dwmci_host));

calloc(1, sizeof(...)) so the data are inited/zero'd out please.
[...]