mmc: tmio: name 0xd8 as CTL_DMA_ENABLE

This reflects at least the current usage of this register
and I think it improves the readability of the code ever so slightly.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Simon Horman 2011-06-21 08:00:08 +09:00 committed by Chris Ball
parent 4c2b8f26eb
commit 95c7348d94
2 changed files with 2 additions and 1 deletions

View file

@ -26,7 +26,7 @@ static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
{
#if defined(CONFIG_SUPERH) || defined(CONFIG_ARCH_SHMOBILE)
/* Switch DMA mode on or off - SuperH specific? */
writew(enable ? 2 : 0, host->ctl + (0xd8 << host->bus_shift));
writew(enable ? 2 : 0, host->ctl + (CTL_DMA_ENABLE << host->bus_shift));
#endif
}

View file

@ -30,6 +30,7 @@
#define CTL_TRANSACTION_CTL 0x34
#define CTL_SDIO_STATUS 0x36
#define CTL_SDIO_IRQ_MASK 0x38
#define CTL_DMA_ENABLE 0xd8
#define CTL_RESET_SD 0xe0
#define CTL_SDIO_REGS 0x100
#define CTL_CLK_AND_WAIT_CTL 0x138