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Commit 5f72f380 authored by Victor Rodriguez's avatar Victor Rodriguez Committed by Kevin Hilman
Browse files

davinci: EDMA support for Omapl138-Hawkboard 



This patch adds EDMA support for the Hawkboard-L138 system

Signed-off-by: default avatarVictor Rodriguez <vm.rod25@gmail.com>
Tested-by: default avatarRene Gonzalez <renegs.2378@gmail.com>
Acked-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent bb59b7fd

arch/arm/mach-davinci/board-omapl138-hawk.c

+54 −0
Original line number Diff line number Diff line
@@ -60,6 +60,55 @@ static __init void omapl138_hawk_config_emac(void) 
			__func__, ret);

}



/*

 * The following EDMA channels/slots are not being used by drivers (for

 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,

 * hence they are being reserved for codecs on the DSP side.

 */

static const s16 da850_dma0_rsv_chans[][2] = {

	/* (offset, number) */

	{ 8,  6},

	{24,  4},

	{30,  2},

	{-1, -1}

};



static const s16 da850_dma0_rsv_slots[][2] = {

	/* (offset, number) */

	{ 8,  6},

	{24,  4},

	{30, 50},

	{-1, -1}

};



static const s16 da850_dma1_rsv_chans[][2] = {

	/* (offset, number) */

	{ 0, 28},

	{30,  2},

	{-1, -1}

};



static const s16 da850_dma1_rsv_slots[][2] = {

	/* (offset, number) */

	{ 0, 28},

	{30, 90},

	{-1, -1}

};



static struct edma_rsv_info da850_edma_cc0_rsv = {

	.rsv_chans	= da850_dma0_rsv_chans,

	.rsv_slots	= da850_dma0_rsv_slots,

};



static struct edma_rsv_info da850_edma_cc1_rsv = {

	.rsv_chans	= da850_dma1_rsv_chans,

	.rsv_slots	= da850_dma1_rsv_slots,

};



static struct edma_rsv_info *da850_edma_rsv[2] = {

	&da850_edma_cc0_rsv,

	&da850_edma_cc1_rsv,

};



static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {

	.enabled_uarts = 0x7,
@@ -73,6 +122,11 @@ static __init void omapl138_hawk_init(void) 


	omapl138_hawk_config_emac();



	ret = da850_register_edma(da850_edma_rsv);

	if (ret)

		pr_warning("%s: EDMA registration failed: %d\n",

			__func__, ret);



	ret = da8xx_register_watchdog();

	if (ret)

		pr_warning("omapl138_hawk_init: "