10 files changed, 238 insertions, 5 deletions

diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index d6ab64ccd496..4ef6dbeccf3c 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -117,6 +117,10 @@ static struct davinci_i2c_platform_data i2c_pdata = {
         .bus_delay      = 0     /* usec */,
 };
 
+static struct snd_platform_data dm355_evm_snd_data = {
+        .clk_name       = "asp1",
+};
+
 static int dm355evm_mmc_gpios = -EINVAL;
 
 static void dm355evm_mmcsd_gpios(unsigned gpio)
@@ -279,6 +283,9 @@ static __init void dm355_evm_init(void)
 
         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
                         ARRAY_SIZE(dm355_evm_spi_info));
+
+        /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
+        dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
 }
 
 static __init void dm355_evm_irq_init(void)
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 56c8cd01de9a..d37f5c204b66 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -225,6 +225,10 @@ static struct platform_device ide_dev = {
         },
 };
 
+static struct snd_platform_data dm644x_evm_snd_data = {
+        .clk_name       = "asp0",
+};
+
 /*----------------------------------------------------------------------*/
 
 /*
@@ -666,6 +670,7 @@ static __init void davinci_evm_init(void)
         davinci_setup_mmc(0, &dm6446evm_mmc_config);
 
         davinci_serial_init(&uart_config);
+        dm644x_init_asp(&dm644x_evm_snd_data);
 
         soc_info->emac_pdata->phy_mask = DM644X_EVM_PHY_MASK;
         soc_info->emac_pdata->mdio_max_freq = DM644X_EVM_MDIO_FREQUENCY;
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 8657e72debc1..0aa18df4110f 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -206,6 +206,37 @@ static struct at24_platform_data eeprom_info = {
         .context        = (void *)0x7f00,
 };
 
+static u8 dm646x_iis_serializer_direction[] = {
+       TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,
+};
+
+static u8 dm646x_dit_serializer_direction[] = {
+       TX_MODE,
+};
+
+static struct snd_platform_data dm646x_evm_snd_data[] = {
+        {
+                .clk_name       = "mcasp0",
+                .tx_dma_offset  = 0x400,
+                .rx_dma_offset  = 0x400,
+                .op_mode        = DAVINCI_MCASP_IIS_MODE,
+                .num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
+                .tdm_slots      = 2,
+                .serial_dir     = dm646x_iis_serializer_direction,
+                .eventq_no      = EVENTQ_0,
+        },
+        {
+                .clk_name       = "mcasp1",
+                .tx_dma_offset  = 0x400,
+                .rx_dma_offset  = 0,
+                .op_mode        = DAVINCI_MCASP_DIT_MODE,
+                .num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
+                .tdm_slots      = 32,
+                .serial_dir     = dm646x_dit_serializer_direction,
+                .eventq_no      = EVENTQ_0,
+        },
+};
+
 static struct i2c_board_info __initdata i2c_info[] =  {
         {
                 I2C_BOARD_INFO("24c256", 0x50),
@@ -239,6 +270,8 @@ static __init void evm_init(void)
 
         evm_init_i2c();
         davinci_serial_init(&uart_config);
+        dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
+        dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
 
         soc_info->emac_pdata->phy_mask = DM646X_EVM_PHY_MASK;
         soc_info->emac_pdata->mdio_max_freq = DM646X_EVM_MDIO_FREQUENCY;
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 48f33e420517..b4d709a8612a 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -30,6 +30,7 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
+#include <mach/asp.h>
 
 #include "clock.h"
 #include "mux.h"
@@ -360,8 +361,8 @@ static struct davinci_clk dm355_clks[] = {
         CLK(NULL, "uart1", &uart1_clk),
         CLK(NULL, "uart2", &uart2_clk),
         CLK("i2c_davinci.1", NULL, &i2c_clk),
-        CLK("soc-audio.0", NULL, &asp0_clk),
-        CLK("soc-audio.1", NULL, &asp1_clk),
+        CLK(NULL, "asp0", &asp0_clk),
+        CLK(NULL, "asp1", &asp1_clk),
         CLK("davinci_mmc.0", NULL, &mmcsd0_clk),
         CLK("davinci_mmc.1", NULL, &mmcsd1_clk),
         CLK(NULL, "spi0", &spi0_clk),
@@ -627,6 +628,31 @@ static struct platform_device dm355_edma_device = {
         .resource               = edma_resources,
 };
 
+static struct resource dm355_asp1_resources[] = {
+        {
+                .start  = DAVINCI_ASP1_BASE,
+                .end    = DAVINCI_ASP1_BASE + SZ_8K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = DAVINCI_DMA_ASP1_TX,
+                .end    = DAVINCI_DMA_ASP1_TX,
+                .flags  = IORESOURCE_DMA,
+        },
+        {
+                .start  = DAVINCI_DMA_ASP1_RX,
+                .end    = DAVINCI_DMA_ASP1_RX,
+                .flags  = IORESOURCE_DMA,
+        },
+};
+
+static struct platform_device dm355_asp1_device = {
+        .name           = "davinci-asp",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(dm355_asp1_resources),
+        .resource       = dm355_asp1_resources,
+};
+
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm355_io_desc[] = {
@@ -735,6 +761,19 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
         .sram_len               = SZ_32K,
 };
 
+void __init dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata)
+{
+        /* we don't use ASP1 IRQs, or we'd need to mux them ... */
+        if (evt_enable & ASP1_TX_EVT_EN)
+                davinci_cfg_reg(DM355_EVT8_ASP1_TX);
+
+        if (evt_enable & ASP1_RX_EVT_EN)
+                davinci_cfg_reg(DM355_EVT9_ASP1_RX);
+
+        dm355_asp1_device.dev.platform_data = pdata;
+        platform_device_register(&dm355_asp1_device);
+}
+
 void __init dm355_init(void)
 {
         davinci_common_init(&davinci_soc_info_dm355);
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index d20e447a8b4f..55317b1cf865 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -27,6 +27,7 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
+#include <mach/asp.h>
 
 #include "clock.h"
 #include "mux.h"
@@ -303,7 +304,7 @@ struct davinci_clk dm644x_clks[] = {
         CLK("davinci_emac.1", NULL, &emac_clk),
         CLK("i2c_davinci.1", NULL, &i2c_clk),
         CLK("palm_bk3710", NULL, &ide_clk),
-        CLK("soc-audio.0", NULL, &asp_clk),
+        CLK(NULL, "asp0", &asp_clk),
         CLK("davinci_mmc.0", NULL, &mmcsd_clk),
         CLK(NULL, "spi", &spi_clk),
         CLK(NULL, "gpio", &gpio_clk),
@@ -553,6 +554,32 @@ static struct platform_device dm644x_edma_device = {
         .resource               = edma_resources,
 };
 
+/* DM6446 EVM uses ASP0; line-out is a pair of RCA jacks */
+static struct resource dm644x_asp_resources[] = {
+        {
+                .start  = DAVINCI_ASP0_BASE,
+                .end    = DAVINCI_ASP0_BASE + SZ_8K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = DAVINCI_DMA_ASP0_TX,
+                .end    = DAVINCI_DMA_ASP0_TX,
+                .flags  = IORESOURCE_DMA,
+        },
+        {
+                .start  = DAVINCI_DMA_ASP0_RX,
+                .end    = DAVINCI_DMA_ASP0_RX,
+                .flags  = IORESOURCE_DMA,
+        },
+};
+
+static struct platform_device dm644x_asp_device = {
+        .name           = "davinci-asp",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(dm644x_asp_resources),
+        .resource       = dm644x_asp_resources,
+};
+
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm644x_io_desc[] = {
@@ -669,6 +696,13 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
         .sram_len               = SZ_16K,
 };
 
+void __init dm644x_init_asp(struct snd_platform_data *pdata)
+{
+        davinci_cfg_reg(DM644X_MCBSP);
+        dm644x_asp_device.dev.platform_data = pdata;
+        platform_device_register(&dm644x_asp_device);
+}
+
 void __init dm644x_init(void)
 {
         davinci_common_init(&davinci_soc_info_dm644x);
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 2c76a4d47bfb..199f288e03c4 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -27,6 +27,7 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
+#include <mach/asp.h>
 
 #include "clock.h"
 #include "mux.h"
@@ -591,6 +592,66 @@ static struct platform_device dm646x_edma_device = {
         .resource               = edma_resources,
 };
 
+static struct resource dm646x_mcasp0_resources[] = {
+        {
+                .name   = "mcasp0",
+                .start  = DAVINCI_DM646X_MCASP0_REG_BASE,
+                .end    = DAVINCI_DM646X_MCASP0_REG_BASE + (SZ_1K << 1) - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        /* first TX, then RX */
+        {
+                .start  = DAVINCI_DM646X_DMA_MCASP0_AXEVT0,
+                .end    = DAVINCI_DM646X_DMA_MCASP0_AXEVT0,
+                .flags  = IORESOURCE_DMA,
+        },
+        {
+                .start  = DAVINCI_DM646X_DMA_MCASP0_AREVT0,
+                .end    = DAVINCI_DM646X_DMA_MCASP0_AREVT0,
+                .flags  = IORESOURCE_DMA,
+        },
+};
+
+static struct resource dm646x_mcasp1_resources[] = {
+        {
+                .name   = "mcasp1",
+                .start  = DAVINCI_DM646X_MCASP1_REG_BASE,
+                .end    = DAVINCI_DM646X_MCASP1_REG_BASE + (SZ_1K << 1) - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        /* DIT mode, only TX event */
+        {
+                .start  = DAVINCI_DM646X_DMA_MCASP1_AXEVT1,
+                .end    = DAVINCI_DM646X_DMA_MCASP1_AXEVT1,
+                .flags  = IORESOURCE_DMA,
+        },
+        /* DIT mode, dummy entry */
+        {
+                .start  = -1,
+                .end    = -1,
+                .flags  = IORESOURCE_DMA,
+        },
+};
+
+static struct platform_device dm646x_mcasp0_device = {
+        .name           = "davinci-mcasp",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(dm646x_mcasp0_resources),
+        .resource       = dm646x_mcasp0_resources,
+};
+
+static struct platform_device dm646x_mcasp1_device = {
+        .name           = "davinci-mcasp",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(dm646x_mcasp1_resources),
+        .resource       = dm646x_mcasp1_resources,
+};
+
+static struct platform_device dm646x_dit_device = {
+        .name   = "spdif-dit",
+        .id     = -1,
+};
+
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm646x_io_desc[] = {
@@ -700,6 +761,19 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
         .sram_len               = SZ_32K,
 };
 
+void __init dm646x_init_mcasp0(struct snd_platform_data *pdata)
+{
+        dm646x_mcasp0_device.dev.platform_data = pdata;
+        platform_device_register(&dm646x_mcasp0_device);
+}
+
+void __init dm646x_init_mcasp1(struct snd_platform_data *pdata)
+{
+        dm646x_mcasp1_device.dev.platform_data = pdata;
+        platform_device_register(&dm646x_mcasp1_device);
+        platform_device_register(&dm646x_dit_device);
+}
+
 void __init dm646x_init(void)
 {
         davinci_common_init(&davinci_soc_info_dm646x);
diff --git a/arch/arm/mach-davinci/include/mach/asp.h b/arch/arm/mach-davinci/include/mach/asp.h
index e0abc437d796..038ecb7c231b 100644
--- a/arch/arm/mach-davinci/include/mach/asp.h
+++ b/arch/arm/mach-davinci/include/mach/asp.h
@@ -5,21 +5,52 @@
 #define __ASM_ARCH_DAVINCI_ASP_H
 
 #include <mach/irqs.h>
+#include <mach/edma.h>
 
-/* Bases of register banks */
+/* Bases of dm644x and dm355 register banks */
 #define DAVINCI_ASP0_BASE       0x01E02000
 #define DAVINCI_ASP1_BASE       0x01E04000
 
-/* EDMA channels */
+/* Bases of dm646x register banks */
+#define DAVINCI_DM646X_MCASP0_REG_BASE          0x01D01000
+#define DAVINCI_DM646X_MCASP1_REG_BASE          0x01D01800
+
+/* EDMA channels of dm644x and dm355 */
 #define DAVINCI_DMA_ASP0_TX     2
 #define DAVINCI_DMA_ASP0_RX     3
 #define DAVINCI_DMA_ASP1_TX     8
 #define DAVINCI_DMA_ASP1_RX     9
 
+/* EDMA channels of dm646x */
+#define DAVINCI_DM646X_DMA_MCASP0_AXEVT0        6
+#define DAVINCI_DM646X_DMA_MCASP0_AREVT0        9
+#define DAVINCI_DM646X_DMA_MCASP1_AXEVT1        12
+
 /* Interrupts */
 #define DAVINCI_ASP0_RX_INT     IRQ_MBRINT
 #define DAVINCI_ASP0_TX_INT     IRQ_MBXINT
 #define DAVINCI_ASP1_RX_INT     IRQ_MBRINT
 #define DAVINCI_ASP1_TX_INT     IRQ_MBXINT
 
+struct snd_platform_data {
+        char *clk_name;
+        u32 tx_dma_offset;
+        u32 rx_dma_offset;
+        enum dma_event_q eventq_no;     /* event queue number */
+        unsigned int codec_fmt;
+
+        /* McASP specific fields */
+        int tdm_slots;
+        u8 op_mode;
+        u8 num_serializer;
+        u8 *serial_dir;
+};
+
+#define INACTIVE_MODE   0
+#define TX_MODE         1
+#define RX_MODE         2
+
+#define DAVINCI_MCASP_IIS_MODE  0
+#define DAVINCI_MCASP_DIT_MODE  1
+
 #endif /* __ASM_ARCH_DAVINCI_ASP_H */
diff --git a/arch/arm/mach-davinci/include/mach/dm355.h b/arch/arm/mach-davinci/include/mach/dm355.h
index 54903b72438e..03faaef95a9a 100644
--- a/arch/arm/mach-davinci/include/mach/dm355.h
+++ b/arch/arm/mach-davinci/include/mach/dm355.h
@@ -12,11 +12,16 @@
 #define __ASM_ARCH_DM355_H
 
 #include <mach/hardware.h>
+#include <mach/asp.h>
+
+#define ASP1_TX_EVT_EN  1
+#define ASP1_RX_EVT_EN  2
 
 struct spi_board_info;
 
 void __init dm355_init(void);
 void dm355_init_spi0(unsigned chipselect_mask,
                 struct spi_board_info *info, unsigned len);
+void __init dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata);
 
 #endif /* __ASM_ARCH_DM355_H */
diff --git a/arch/arm/mach-davinci/include/mach/dm644x.h b/arch/arm/mach-davinci/include/mach/dm644x.h
index 15d42b92a8c9..8b157ceec0ca 100644
--- a/arch/arm/mach-davinci/include/mach/dm644x.h
+++ b/arch/arm/mach-davinci/include/mach/dm644x.h
@@ -25,6 +25,7 @@
 #include <linux/platform_device.h>
 #include <mach/hardware.h>
 #include <mach/emac.h>
+#include <mach/asp.h>
 
 #define DM644X_EMAC_BASE                (0x01C80000)
 #define DM644X_EMAC_CNTRL_OFFSET        (0x0000)
@@ -34,5 +35,6 @@
 #define DM644X_EMAC_CNTRL_RAM_SIZE      (0x2000)
 
 void __init dm644x_init(void);
+void __init dm644x_init_asp(struct snd_platform_data *pdata);
 
 #endif /* __ASM_ARCH_DM644X_H */
diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h
index 1fc764c8646e..05854846242a 100644
--- a/arch/arm/mach-davinci/include/mach/dm646x.h
+++ b/arch/arm/mach-davinci/include/mach/dm646x.h
@@ -13,6 +13,7 @@
 
 #include <mach/hardware.h>
 #include <mach/emac.h>
+#include <mach/asp.h>
 
 #define DM646X_EMAC_BASE                (0x01C80000)
 #define DM646X_EMAC_CNTRL_OFFSET        (0x0000)
@@ -22,5 +23,7 @@
 #define DM646X_EMAC_CNTRL_RAM_SIZE      (0x2000)
 
 void __init dm646x_init(void);
+void __init dm646x_init_mcasp0(struct snd_platform_data *pdata);
+void __init dm646x_init_mcasp1(struct snd_platform_data *pdata);
 
 #endif /* __ASM_ARCH_DM646X_H */