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: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

6 files changed, 72 insertions, 80 deletions

diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi
index 34da11aa6795..b2d41b7502bd 100644
--- a/arch/arm/boot/dts/spear1340.dtsi
+++ b/arch/arm/boot/dts/spear1340.dtsi
@@ -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>;
diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi
index b4ca60f4eb42..585f64157ea4 100644
--- a/arch/arm/boot/dts/spear13xx.dtsi
+++ b/arch/arm/boot/dts/spear13xx.dtsi
@@ -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 {
diff --git a/arch/arm/mach-spear13xx/include/mach/spear.h b/arch/arm/mach-spear13xx/include/mach/spear.h
index 7cfa6818865a..972a151df34c 100644
--- a/arch/arm/mach-spear13xx/include/mach/spear.h
+++ b/arch/arm/mach-spear13xx/include/mach/spear.h
@@ -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 */
diff --git a/arch/arm/mach-spear13xx/spear1310.c b/arch/arm/mach-spear13xx/spear1310.c
index 02f4724bb0d4..ec72c47c0e08 100644
--- a/arch/arm/mach-spear13xx/spear1310.c
+++ b/arch/arm/mach-spear13xx/spear1310.c
@@ -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),
         {}
 };
diff --git a/arch/arm/mach-spear13xx/spear1340.c b/arch/arm/mach-spear13xx/spear1340.c
index 081014fb314a..69c8f72a9ca2 100644
--- a/arch/arm/mach-spear13xx/spear1340.c
+++ b/arch/arm/mach-spear13xx/spear1340.c
@@ -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),
diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c
index c4af775a8451..b074db8b109c 100644
--- a/arch/arm/mach-spear13xx/spear13xx.c
+++ b/arch/arm/mach-spear13xx/spear13xx.c
@@ -22,63 +22,16 @@
 #include <asm/hardware/gic.h>
 #include <asm/mach/map.h>
 #include <asm/smp_twd.h>
-#include <mach/dma.h>
 #include <mach/generic.h>
 #include <mach/spear.h>
 
-/* common dw_dma filter routine to be used by peripherals */
-bool dw_dma_filter(struct dma_chan *chan, void *slave)
-{
-        struct dw_dma_slave *dws = (struct dw_dma_slave *)slave;
-
-        if (chan->device->dev == dws->dma_dev) {
-                chan->private = slave;
-                return true;
-        } else {
-                return false;
-        }
-}
-
 /* ssp device registration */
-static struct dw_dma_slave ssp_dma_param[] = {
-        {
-                /* Tx */
-                .cfg_hi = DWC_CFGH_DST_PER(DMA_REQ_SSP0_TX),
-                .cfg_lo = 0,
-                .src_master = DMA_MASTER_MEMORY,
-                .dst_master = DMA_MASTER_SSP0,
-        }, {
-                /* Rx */
-                .cfg_hi = DWC_CFGH_SRC_PER(DMA_REQ_SSP0_RX),
-                .cfg_lo = 0,
-                .src_master = DMA_MASTER_SSP0,
-                .dst_master = DMA_MASTER_MEMORY,
-        }
-};
-
 struct pl022_ssp_controller pl022_plat_data = {
         .enable_dma = 1,
-        .dma_filter = dw_dma_filter,
-        .dma_rx_param = &ssp_dma_param[1],
-        .dma_tx_param = &ssp_dma_param[0],
-};
-
-/* CF device registration */
-struct dw_dma_slave cf_dma_priv = {
-        .cfg_hi = 0,
-        .cfg_lo = 0,
-        .src_master = 0,
-        .dst_master = 0,
-};
-
-/* dmac device registeration */
-struct dw_dma_platform_data dmac_plat_data = {
-        .nr_channels = 8,
-        .chan_allocation_order = CHAN_ALLOCATION_DESCENDING,
-        .chan_priority = CHAN_PRIORITY_DESCENDING,
-        .block_size = 4095U,
-        .nr_masters = 2,
-        .data_width = { 3, 3, 0, 0 },
+        .dma_filter = dw_dma_generic_filter,
+        .dma_rx_param = "ssp0_rx",
+        .dma_tx_param = "ssp0_tx",
+        .num_chipselect = 3,
 };
 
 void __init spear13xx_l2x0_init(void)