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Commit cb76eb81 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Rafael J. Wysocki
Browse files

ARM: shmobile: r8a7740: add DMAEngine support for SDHI 



Current shdmac can support SDHI DMAC on r8a7740.
This support reduce CPU duty when SDHI access.

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
parent 643c3307

arch/arm/mach-shmobile/include/mach/r8a7740.h

+6 −0
Original line number Diff line number Diff line
@@ -591,6 +591,12 @@ enum { 
/* DMA slave IDs */

enum {

	SHDMA_SLAVE_INVALID,

	SHDMA_SLAVE_SDHI0_RX,

	SHDMA_SLAVE_SDHI0_TX,

	SHDMA_SLAVE_SDHI1_RX,

	SHDMA_SLAVE_SDHI1_TX,

	SHDMA_SLAVE_SDHI2_RX,

	SHDMA_SLAVE_SDHI2_TX,

	SHDMA_SLAVE_FSIA_RX,

	SHDMA_SLAVE_FSIA_TX,

	SHDMA_SLAVE_FSIB_TX,

arch/arm/mach-shmobile/setup-r8a7740.c

+30 −0
Original line number Diff line number Diff line
@@ -306,6 +306,36 @@ enum { 


static const struct sh_dmae_slave_config r8a7740_dmae_slaves[] = {

	{

		.slave_id	= SHDMA_SLAVE_SDHI0_TX,

		.addr		= 0xe6850030,

		.chcr		= CHCR_TX(XMIT_SZ_16BIT),

		.mid_rid	= 0xc1,

	}, {

		.slave_id	= SHDMA_SLAVE_SDHI0_RX,

		.addr		= 0xe6850030,

		.chcr		= CHCR_RX(XMIT_SZ_16BIT),

		.mid_rid	= 0xc2,

	}, {

		.slave_id	= SHDMA_SLAVE_SDHI1_TX,

		.addr		= 0xe6860030,

		.chcr		= CHCR_TX(XMIT_SZ_16BIT),

		.mid_rid	= 0xc9,

	}, {

		.slave_id	= SHDMA_SLAVE_SDHI1_RX,

		.addr		= 0xe6860030,

		.chcr		= CHCR_RX(XMIT_SZ_16BIT),

		.mid_rid	= 0xca,

	}, {

		.slave_id	= SHDMA_SLAVE_SDHI2_TX,

		.addr		= 0xe6870030,

		.chcr		= CHCR_TX(XMIT_SZ_16BIT),

		.mid_rid	= 0xcd,

	}, {

		.slave_id	= SHDMA_SLAVE_SDHI2_RX,

		.addr		= 0xe6870030,

		.chcr		= CHCR_RX(XMIT_SZ_16BIT),

		.mid_rid	= 0xce,

	}, {

		.slave_id	= SHDMA_SLAVE_FSIA_TX,

		.addr		= 0xfe1f0024,

		.chcr		= CHCR_TX(XMIT_SZ_32BIT),