[U-Boot] [PATCH v5] nios2: add altera cf reset

[Scott McNutt <smcnutt@psyent.com>]

Applied. Thanks.
--Scott

Thomas Chou wrote:
> This patch toggles power to reset the cf card.
> 
> Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
> ---
> more checkpatch.pl fixes
> 
>  board/altera/common/cfide.c |   33 +++++++++++++++++++++++++++++++++
>  1 files changed, 33 insertions(+), 0 deletions(-)
>  create mode 100644 board/altera/common/cfide.c
> 
> diff --git a/board/altera/common/cfide.c b/board/altera/common/cfide.c
> new file mode 100644
> index 0000000..40d6a12
> --- /dev/null
> +++ b/board/altera/common/cfide.c
> @@ -0,0 +1,33 @@
> +/*
> + * Altera CF drvier
> + *
> + * (C) Copyright 2010, Thomas Chou <thomas@wytron.com.tw>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +#include <common.h>
> +#include <asm/io.h>
> +
> +#if defined(CONFIG_IDE_RESET) && defined(CONFIG_SYS_CF_CTL_BASE)
> +/* ide_set_reset for Altera CF interface */
> +#define ALTERA_CF_CTL_STATUS			0
> +#define ALTERA_CF_IDE_CTL			4
> +#define ALTERA_CF_CTL_STATUS_PRESENT_MSK	(0x1)
> +#define ALTERA_CF_CTL_STATUS_POWER_MSK		(0x2)
> +#define ALTERA_CF_CTL_STATUS_RESET_MSK		(0x4)
> +#define ALTERA_CF_CTL_STATUS_IRQ_EN_MSK	(0x8)
> +#define ALTERA_CF_IDE_CTL_IRQ_EN_MSK		(0x1)
> +
> +void ide_set_reset(int idereset)
> +{
> +	int i;
> +	writel(idereset ? ALTERA_CF_CTL_STATUS_RESET_MSK :
> +	       ALTERA_CF_CTL_STATUS_POWER_MSK,
> +	       CONFIG_SYS_CF_CTL_BASE + ALTERA_CF_CTL_STATUS);
> +	/* wait 500 ms for power to stabilize */
> +	for (i = 0; i < 500; i++)
> +		udelay(1000);
> +}
> +#endif