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Commit f9965aa2 authored by Viresh Kumar's avatar Viresh Kumar Committed by Vinod Koul
Browse files

ARM: SPEAr13xx: Pass DW DMAC platform data from DT 



This patch adds dw_dmac's platform data to DT node. It also creates slave info
node for SPEAr13xx, for the devices which were using dw_dmac.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@linux.intel.com>
parent a9ddb575

arch/arm/boot/dts/spear1340.dtsi

+19 −0
Original line number Diff line number Diff line
@@ -88,6 +88,25 @@ 
			status = "disabled";

		};



		dma@ea800000 {

			slave_info {

				uart1_tx {

					bus_id = "uart1_tx";

					cfg_hi = <0x6000>;	/* 0xC << 11 */

					cfg_lo = <0>;

					src_master = <0>;

					dst_master = <1>;

				};

				uart1_tx {

					bus_id = "uart1_tx";

					cfg_hi = <0x680>;	/* 0xD << 7 */

					cfg_lo = <0>;

					src_master = <1>;

					dst_master = <0>;

				};

			};

		};



		spi1: spi@5d400000 {

			compatible = "arm,pl022", "arm,primecell";

			reg = <0x5d400000 0x1000>;

arch/arm/boot/dts/spear13xx.dtsi

+38 −0
Original line number Diff line number Diff line
@@ -105,6 +105,37 @@ 
			reg = <0xea800000 0x1000>;

			interrupts = <0 19 0x4>;

			status = "disabled";



			nr_channels = <8>;

			chan_allocation_order = <1>;

			chan_priority = <1>;

			block_size = <0xfff>;

			nr_masters = <2>;

			data_width = <3 3 0 0>;



			slave_info {

				ssp0_tx {

					bus_id = "ssp0_tx";

					cfg_hi = <0x2000>;	/* 0x4 << 11 */

					cfg_lo = <0>;

					src_master = <0>;

					dst_master = <0>;

				};

				ssp0_rx {

					bus_id = "ssp0_rx";

					cfg_hi = <0x280>;	/* 0x5 << 7 */

					cfg_lo = <0>;

					src_master = <0>;

					dst_master = <0>;

				};

				cf {

					bus_id = "cf";

					cfg_hi = <0>;

					cfg_lo = <0>;

					src_master = <0>;

					dst_master = <0>;

				};

			};

		};



		dma@eb000000 {
@@ -112,6 +143,13 @@ 
			reg = <0xeb000000 0x1000>;

			interrupts = <0 59 0x4>;

			status = "disabled";



			nr_channels = <8>;

			chan_allocation_order = <1>;

			chan_priority = <1>;

			block_size = <0xfff>;

			nr_masters = <2>;

			data_width = <3 3 0 0>;

		};



		fsmc: flash@b0000000 {

arch/arm/mach-spear13xx/include/mach/spear.h

+0 −2
Original line number Diff line number Diff line
@@ -43,8 +43,6 @@ 
#define VA_L2CC_BASE				IOMEM(UL(0xFB000000))



/* others */

#define DMAC0_BASE				UL(0xEA800000)

#define DMAC1_BASE				UL(0xEB000000)

#define MCIF_CF_BASE				UL(0xB2800000)



/* Debug uart for linux, will be used for debug and uncompress messages */

arch/arm/mach-spear13xx/spear1310.c

+1 −4
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ 
static struct arasan_cf_pdata cf_pdata = {

	.cf_if_clk = CF_IF_CLK_166M,

	.quirk = CF_BROKEN_UDMA,

	.dma_priv = &cf_dma_priv,

	.dma_priv = "cf",

};



/* ssp device registration */
@@ -47,10 +47,7 @@ static struct pl022_ssp_controller ssp1_plat_data = { 
/* Add SPEAr1310 auxdata to pass platform data */

static struct of_dev_auxdata spear1310_auxdata_lookup[] __initdata = {

	OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_pdata),

	OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data),

	OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data),

	OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data),



	OF_DEV_AUXDATA("arm,pl022", SPEAR1310_SSP1_BASE, NULL, &ssp1_plat_data),

	{}

};

arch/arm/mach-spear13xx/spear1340.c

+10 −23
Original line number Diff line number Diff line
@@ -18,9 +18,9 @@ 
#include <linux/delay.h>

#include <linux/dw_dmac.h>

#include <linux/of_platform.h>

#include <linux/pata_arasan_cf_data.h>

#include <asm/hardware/gic.h>

#include <asm/mach/arch.h>

#include <mach/dma.h>

#include <mach/generic.h>

#include <mach/spear.h>
@@ -78,26 +78,16 @@ 
			(SPEAR1340_MIPHY_OSC_BYPASS_EXT | \

			SPEAR1340_MIPHY_PLL_RATIO_TOP(25))



static struct dw_dma_slave uart1_dma_param[] = {

	{

		/* Tx */

		.cfg_hi = DWC_CFGH_DST_PER(SPEAR1340_DMA_REQ_UART1_TX),

		.cfg_lo = 0,

		.src_master = DMA_MASTER_MEMORY,

		.dst_master = SPEAR1340_DMA_MASTER_UART1,

	}, {

		/* Rx */

		.cfg_hi = DWC_CFGH_SRC_PER(SPEAR1340_DMA_REQ_UART1_RX),

		.cfg_lo = 0,

		.src_master = SPEAR1340_DMA_MASTER_UART1,

		.dst_master = DMA_MASTER_MEMORY,

	}

static struct amba_pl011_data uart1_data = {

	.dma_filter = dw_dma_generic_filter,

	.dma_tx_param = "uart1_tx",

	.dma_rx_param = "uart1_rx",

};



static struct amba_pl011_data uart1_data = {

	.dma_filter = dw_dma_filter,

	.dma_tx_param = &uart1_dma_param[0],

	.dma_rx_param = &uart1_dma_param[1],

static struct arasan_cf_pdata cf_pdata = {

	.cf_if_clk = CF_IF_CLK_166M,

	.quirk = CF_BROKEN_UDMA,

	.dma_priv = "cf",

};



/* SATA device registration */
@@ -158,11 +148,8 @@ static struct ahci_platform_data sata_pdata = { 


/* Add SPEAr1340 auxdata to pass platform data */

static struct of_dev_auxdata spear1340_auxdata_lookup[] __initdata = {

	OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_dma_priv),

	OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data),

	OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data),

	OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_pdata),

	OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data),



	OF_DEV_AUXDATA("snps,spear-ahci", SPEAR1340_SATA_BASE, NULL,

			&sata_pdata),

	OF_DEV_AUXDATA("arm,pl011", SPEAR1340_UART1_BASE, NULL, &uart1_data),