18 files changed, 313 insertions, 27 deletions

diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index 212d97084bd7..bc384d3561da 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -208,7 +208,7 @@ static struct snd_platform_data da830_evm_snd_data = {
         .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
         .tdm_slots      = 2,
         .serial_dir     = da830_iis_serializer_direction,
-        .eventq_no      = EVENTQ_0,
+        .asp_chan_q     = EVENTQ_0,
         .version        = MCASP_VERSION_2,
         .txnumevt       = 1,
         .rxnumevt       = 1,
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index b280efb1fa12..e8c819090268 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -343,7 +343,7 @@ static struct snd_platform_data da850_evm_snd_data = {
         .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
         .tdm_slots      = 2,
         .serial_dir     = da850_iis_serializer_direction,
-        .eventq_no      = EVENTQ_1,
+        .asp_chan_q     = EVENTQ_1,
         .version        = MCASP_VERSION_2,
         .txnumevt       = 1,
         .rxnumevt       = 1,
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 6d8889342c9f..87521f2d69c7 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -323,7 +323,7 @@ static struct snd_platform_data dm646x_evm_snd_data[] = {
                 .num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
                 .tdm_slots      = 2,
                 .serial_dir     = dm646x_iis_serializer_direction,
-                .eventq_no      = EVENTQ_0,
+                .asp_chan_q     = EVENTQ_0,
         },
         {
                 .tx_dma_offset  = 0x400,
@@ -332,7 +332,7 @@ static struct snd_platform_data dm646x_evm_snd_data[] = {
                 .num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
                 .tdm_slots      = 32,
                 .serial_dir     = dm646x_dit_serializer_direction,
-                .eventq_no      = EVENTQ_0,
+                .asp_chan_q     = EVENTQ_0,
         },
 };
 
diff --git a/arch/arm/mach-davinci/include/mach/asp.h b/arch/arm/mach-davinci/include/mach/asp.h
index 834725f1e81d..9aa240909a2c 100644
--- a/arch/arm/mach-davinci/include/mach/asp.h
+++ b/arch/arm/mach-davinci/include/mach/asp.h
@@ -52,7 +52,8 @@
 struct snd_platform_data {
         u32 tx_dma_offset;
         u32 rx_dma_offset;
-        enum dma_event_q eventq_no;     /* event queue number */
+        enum dma_event_q asp_chan_q;    /* event queue number for ASP channel */
+        enum dma_event_q ram_chan_q;    /* event queue number for RAM channel */
         unsigned int codec_fmt;
         /*
          * Allowing this is more efficient and eliminates left and right swaps
@@ -63,6 +64,49 @@ struct snd_platform_data {
         unsigned sram_size_playback;
         unsigned sram_size_capture;
 
+        /*
+         * If McBSP peripheral gets the clock from an external pin,
+         * there are three chooses, that are MCBSP_CLKX, MCBSP_CLKR
+         * and MCBSP_CLKS.
+         * Depending on different hardware connections it is possible
+         * to use this setting to change the behaviour of McBSP
+         * driver. The dm365_clk_input_pin enum is available for dm365
+         */
+        int clk_input_pin;
+
+        /*
+         * This flag works when both clock and FS are outputs for the cpu
+         * and makes clock more accurate (FS is not symmetrical and the
+         * clock is very fast.
+         * The clock becoming faster is named
+         * i2s continuous serial clock (I2S_SCK) and it is an externally
+         * visible bit clock.
+         *
+         * first line : WordSelect
+         * second line : ContinuousSerialClock
+         * third line: SerialData
+         *
+         * SYMMETRICAL APPROACH:
+         *   _______________________          LEFT
+         * _|         RIGHT         |______________________|
+         *     _   _         _   _   _   _         _   _
+         *   _| |_| |_ x16 _| |_| |_| |_| |_ x16 _| |_| |_
+         *     _   _         _   _   _   _         _   _
+         *   _/ \_/ \_ ... _/ \_/ \_/ \_/ \_ ... _/ \_/ \_
+         *    \_/ \_/       \_/ \_/ \_/ \_/       \_/ \_/
+         *
+         * ACCURATE CLOCK APPROACH:
+         *   ______________          LEFT
+         * _|     RIGHT    |_______________________________|
+         *     _         _   _         _   _   _   _   _   _
+         *   _| |_ x16 _| |_| |_ x16 _| |_| |_| |_| |_| |_| |
+         *     _         _   _          _      dummy cycles
+         *   _/ \_ ... _/ \_/ \_  ... _/ \__________________
+         *    \_/       \_/ \_/        \_/
+         *
+         */
+        bool i2s_accurate_sck;
+
         /* McASP specific fields */
         int tdm_slots;
         u8 op_mode;
@@ -78,6 +122,11 @@ enum {
         MCASP_VERSION_2,        /* DA8xx/OMAPL1x */
 };
 
+enum dm365_clk_input_pin {
+        MCBSP_CLKR = 0,         /* DM365 */
+        MCBSP_CLKS,
+};
+
 #define INACTIVE_MODE   0
 #define TX_MODE         1
 #define RX_MODE         2
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 7f3039761d91..8bf3cec98cfa 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -43,7 +43,8 @@ static unsigned long get_uart_rate(struct clk *clk);
 
 static int set_keytchclk_rate(struct clk *clk, unsigned long rate);
 static int set_div_rate(struct clk *clk, unsigned long rate);
-
+static int set_i2s_sclk_rate(struct clk *clk, unsigned long rate);
+static int set_i2s_lrclk_rate(struct clk *clk, unsigned long rate);
 
 static struct clk clk_xtali = {
         .rate           = EP93XX_EXT_CLK_RATE,
@@ -112,6 +113,29 @@ static struct clk clk_video = {
         .set_rate       = set_div_rate,
 };
 
+static struct clk clk_i2s_mclk = {
+        .sw_locked      = 1,
+        .enable_reg     = EP93XX_SYSCON_I2SCLKDIV,
+        .enable_mask    = EP93XX_SYSCON_CLKDIV_ENABLE,
+        .set_rate       = set_div_rate,
+};
+
+static struct clk clk_i2s_sclk = {
+        .sw_locked      = 1,
+        .parent         = &clk_i2s_mclk,
+        .enable_reg     = EP93XX_SYSCON_I2SCLKDIV,
+        .enable_mask    = EP93XX_SYSCON_I2SCLKDIV_SENA,
+        .set_rate       = set_i2s_sclk_rate,
+};
+
+static struct clk clk_i2s_lrclk = {
+        .sw_locked      = 1,
+        .parent         = &clk_i2s_sclk,
+        .enable_reg     = EP93XX_SYSCON_I2SCLKDIV,
+        .enable_mask    = EP93XX_SYSCON_I2SCLKDIV_SENA,
+        .set_rate       = set_i2s_lrclk_rate,
+};
+
 /* DMA Clocks */
 static struct clk clk_m2p0 = {
         .parent         = &clk_h,
@@ -191,6 +215,9 @@ static struct clk_lookup clocks[] = {
         INIT_CK("ep93xx-keypad",        NULL,           &clk_keypad),
         INIT_CK("ep93xx-fb",            NULL,           &clk_video),
         INIT_CK("ep93xx-spi.0",         NULL,           &clk_spi),
+        INIT_CK("ep93xx-i2s",           "mclk",         &clk_i2s_mclk),
+        INIT_CK("ep93xx-i2s",           "sclk",         &clk_i2s_sclk),
+        INIT_CK("ep93xx-i2s",           "lrclk",        &clk_i2s_lrclk),
         INIT_CK(NULL,                   "pwm_clk",      &clk_pwm),
         INIT_CK(NULL,                   "m2p0",         &clk_m2p0),
         INIT_CK(NULL,                   "m2p1",         &clk_m2p1),
@@ -401,6 +428,44 @@ static int set_div_rate(struct clk *clk, unsigned long rate)
         return 0;
 }
 
+static int set_i2s_sclk_rate(struct clk *clk, unsigned long rate)
+{
+        unsigned val = __raw_readl(clk->enable_reg);
+
+        if (rate == clk_i2s_mclk.rate / 2)
+                ep93xx_syscon_swlocked_write(val & ~EP93XX_I2SCLKDIV_SDIV, 
+                                             clk->enable_reg);
+        else if (rate == clk_i2s_mclk.rate / 4)
+                ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_SDIV, 
+                                             clk->enable_reg);
+        else
+                return -EINVAL;
+
+        clk_i2s_sclk.rate = rate;
+        return 0;
+}
+
+static int set_i2s_lrclk_rate(struct clk *clk, unsigned long rate)
+{
+        unsigned val = __raw_readl(clk->enable_reg) & 
+                ~EP93XX_I2SCLKDIV_LRDIV_MASK;
+        
+        if (rate == clk_i2s_sclk.rate / 32)
+                ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_LRDIV32,
+                                             clk->enable_reg);
+        else if (rate == clk_i2s_sclk.rate / 64)
+                ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_LRDIV64,
+                                             clk->enable_reg);
+        else if (rate == clk_i2s_sclk.rate / 128)
+                ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_LRDIV128,
+                                             clk->enable_reg);
+        else
+                return -EINVAL;
+
+        clk_i2s_lrclk.rate = rate;
+        return 0;
+}
+
 int clk_set_rate(struct clk *clk, unsigned long rate)
 {
         if (clk->set_rate)
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 8e37a045188c..4cb55d3902ff 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -758,6 +758,73 @@ void ep93xx_keypad_release_gpio(struct platform_device *pdev)
 }
 EXPORT_SYMBOL(ep93xx_keypad_release_gpio);
 
+/*************************************************************************
+ * EP93xx I2S audio peripheral handling
+ *************************************************************************/
+static struct resource ep93xx_i2s_resource[] = {
+        {
+                .start  = EP93XX_I2S_PHYS_BASE,
+                .end    = EP93XX_I2S_PHYS_BASE + 0x100 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device ep93xx_i2s_device = {
+        .name           = "ep93xx-i2s",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(ep93xx_i2s_resource),
+        .resource       = ep93xx_i2s_resource,
+};
+
+void __init ep93xx_register_i2s(void)
+{
+        platform_device_register(&ep93xx_i2s_device);
+}
+
+#define EP93XX_SYSCON_DEVCFG_I2S_MASK   (EP93XX_SYSCON_DEVCFG_I2SONSSP | \
+                                         EP93XX_SYSCON_DEVCFG_I2SONAC97)
+
+#define EP93XX_I2SCLKDIV_MASK           (EP93XX_SYSCON_I2SCLKDIV_ORIDE | \
+                                         EP93XX_SYSCON_I2SCLKDIV_SPOL)
+
+int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config)
+{
+        unsigned val;
+
+        /* Sanity check */
+        if (i2s_pins & ~EP93XX_SYSCON_DEVCFG_I2S_MASK)
+                return -EINVAL;
+        if (i2s_config & ~EP93XX_I2SCLKDIV_MASK)
+                return -EINVAL;
+
+        /* Must have only one of I2SONSSP/I2SONAC97 set */
+        if ((i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONSSP) ==
+            (i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONAC97))
+                return -EINVAL;
+
+        ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2S_MASK);
+        ep93xx_devcfg_set_bits(i2s_pins);
+
+        /*
+         * This is potentially racy with the clock api for i2s_mclk, sclk and 
+         * lrclk. Since the i2s driver is the only user of those clocks we
+         * rely on it to prevent parallel use of this function and the 
+         * clock api for the i2s clocks.
+         */
+        val = __raw_readl(EP93XX_SYSCON_I2SCLKDIV);
+        val &= ~EP93XX_I2SCLKDIV_MASK;
+        val |= i2s_config;
+        ep93xx_syscon_swlocked_write(val, EP93XX_SYSCON_I2SCLKDIV);
+
+        return 0;
+}
+EXPORT_SYMBOL(ep93xx_i2s_acquire);
+
+void ep93xx_i2s_release(void)
+{
+        ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2S_MASK);
+}
+EXPORT_SYMBOL(ep93xx_i2s_release);
 
 extern void ep93xx_gpio_init(void);
 
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index b1e096f0c2d2..c54b3e56ba63 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -93,6 +93,7 @@
 /* APB peripherals */
 #define EP93XX_TIMER_BASE               EP93XX_APB_IOMEM(0x00010000)
 
+#define EP93XX_I2S_PHYS_BASE            EP93XX_APB_PHYS(0x00020000)
 #define EP93XX_I2S_BASE                 EP93XX_APB_IOMEM(0x00020000)
 
 #define EP93XX_SECURITY_BASE            EP93XX_APB_IOMEM(0x00030000)
@@ -194,6 +195,15 @@
 #define EP93XX_SYSCON_CLKDIV_ESEL       (1<<14)
 #define EP93XX_SYSCON_CLKDIV_PSEL       (1<<13)
 #define EP93XX_SYSCON_CLKDIV_PDIV_SHIFT 8
+#define EP93XX_SYSCON_I2SCLKDIV         EP93XX_SYSCON_REG(0x8c)
+#define EP93XX_SYSCON_I2SCLKDIV_SENA    (1<<31)
+#define EP93XX_SYSCON_I2SCLKDIV_ORIDE   (1<<29)
+#define EP93XX_SYSCON_I2SCLKDIV_SPOL    (1<<19)
+#define EP93XX_I2SCLKDIV_SDIV           (1 << 16)
+#define EP93XX_I2SCLKDIV_LRDIV32        (0 << 17)
+#define EP93XX_I2SCLKDIV_LRDIV64        (1 << 17)
+#define EP93XX_I2SCLKDIV_LRDIV128       (2 << 17)
+#define EP93XX_I2SCLKDIV_LRDIV_MASK     (3 << 17)
 #define EP93XX_SYSCON_KEYTCHCLKDIV      EP93XX_SYSCON_REG(0x90)
 #define EP93XX_SYSCON_KEYTCHCLKDIV_TSEN (1<<31)
 #define EP93XX_SYSCON_KEYTCHCLKDIV_ADIV (1<<16)
diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h
index a6c09176334c..3330b36d79e6 100644
--- a/arch/arm/mach-ep93xx/include/mach/platform.h
+++ b/arch/arm/mach-ep93xx/include/mach/platform.h
@@ -58,6 +58,9 @@ void ep93xx_pwm_release_gpio(struct platform_device *pdev);
 void ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data);
 int ep93xx_keypad_acquire_gpio(struct platform_device *pdev);
 void ep93xx_keypad_release_gpio(struct platform_device *pdev);
+void ep93xx_register_i2s(void);
+int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config);
+void ep93xx_i2s_release(void);
 
 void ep93xx_init_devices(void);
 extern struct sys_timer ep93xx_timer;
diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c
index 38deaee40397..a12c89301297 100644
--- a/arch/arm/mach-ep93xx/snappercl15.c
+++ b/arch/arm/mach-ep93xx/snappercl15.c
@@ -157,6 +157,7 @@ static void __init snappercl15_init_machine(void)
         ep93xx_register_i2c(&snappercl15_i2c_gpio_data, snappercl15_i2c_data,
                             ARRAY_SIZE(snappercl15_i2c_data));
         ep93xx_register_fb(&snappercl15_fb_info);
+        ep93xx_register_i2s();
         platform_device_register(&snappercl15_nand_device);
 }
 
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 9dd67c7b4459..1c82d4290dad 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -25,6 +25,7 @@
 #include <asm/mach/time.h>
 #include <mach/kirkwood.h>
 #include <mach/bridge-regs.h>
+#include <plat/audio.h>
 #include <plat/cache-feroceon-l2.h>
 #include <plat/ehci-orion.h>
 #include <plat/mvsdio.h>
@@ -871,6 +872,42 @@ struct sys_timer kirkwood_timer = {
         .init = kirkwood_timer_init,
 };
 
+/*****************************************************************************
+ * Audio
+ ****************************************************************************/
+static struct resource kirkwood_i2s_resources[] = {
+        [0] = {
+                .start  = AUDIO_PHYS_BASE,
+                .end    = AUDIO_PHYS_BASE + SZ_16K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_KIRKWOOD_I2S,
+                .end    = IRQ_KIRKWOOD_I2S,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct kirkwood_asoc_platform_data kirkwood_i2s_data = {
+        .dram        = &kirkwood_mbus_dram_info,
+        .burst       = 128,
+};
+
+static struct platform_device kirkwood_i2s_device = {
+        .name           = "kirkwood-i2s",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(kirkwood_i2s_resources),
+        .resource       = kirkwood_i2s_resources,
+        .dev            = {
+                .platform_data  = &kirkwood_i2s_data,
+        },
+};
+
+void __init kirkwood_audio_init(void)
+{
+        kirkwood_clk_ctrl |= CGC_AUDIO;
+        platform_device_register(&kirkwood_i2s_device);
+}
 
 /*****************************************************************************
  * General
@@ -939,6 +976,7 @@ void __init kirkwood_init(void)
         kirkwood_spi_plat_data.tclk = kirkwood_tclk;
         kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
         kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
+        kirkwood_i2s_data.tclk = kirkwood_tclk;
 
         /*
          * Disable propagation of mbus errors to the CPU local bus,
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 5b2c1c18d641..95bb0a73adfb 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -17,6 +17,7 @@ struct mv_sata_platform_data;
 struct mvsdio_platform_data;
 struct mtd_partition;
 struct mtd_info;
+struct kirkwood_asoc_platform_data;
 
 #define KW_PCIE0        (1 << 0)
 #define KW_PCIE1        (1 << 1)
@@ -46,6 +47,7 @@ void kirkwood_uart0_init(void);
 void kirkwood_uart1_init(void);
 void kirkwood_nand_init(struct mtd_partition *parts, int nr_parts, int delay);
 void kirkwood_nand_init_rnb(struct mtd_partition *parts, int nr_parts, int (*dev_ready)(struct mtd_info *));
+void kirkwood_audio_init(void);
 
 extern int kirkwood_tclk;
 extern struct sys_timer kirkwood_timer;
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index d141af4c2744..93fc2ec95e76 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -111,6 +111,9 @@
 
 #define SDIO_PHYS_BASE          (KIRKWOOD_REGS_PHYS_BASE | 0x90000)
 
+#define AUDIO_PHYS_BASE         (KIRKWOOD_REGS_PHYS_BASE | 0xA0000)
+#define AUDIO_VIRT_BASE         (KIRKWOOD_REGS_VIRT_BASE | 0xA0000)
+
 /*
  * Supported devices and revisions.
  */
diff --git a/arch/arm/mach-kirkwood/openrd-setup.c b/arch/arm/mach-kirkwood/openrd-setup.c
index fd64cd2b4e0a..fd06be618815 100644
--- a/arch/arm/mach-kirkwood/openrd-setup.c
+++ b/arch/arm/mach-kirkwood/openrd-setup.c
@@ -15,6 +15,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/ata_platform.h>
 #include <linux/mv643xx_eth.h>
+#include <linux/i2c.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <mach/kirkwood.h>
@@ -60,6 +61,12 @@ static unsigned int openrd_mpp_config[] __initdata = {
         0
 };
 
+static struct i2c_board_info i2c_board_info[] __initdata = {
+        {
+                I2C_BOARD_INFO("cs42l51", 0x4a),
+        },
+};
+
 static void __init openrd_init(void)
 {
         /*
@@ -86,6 +93,12 @@ static void __init openrd_init(void)
         kirkwood_sdio_init(&openrd_mvsdio_data);
 
         kirkwood_i2c_init();
+
+        if (machine_is_openrd_client()) {
+                i2c_register_board_info(0, i2c_board_info,
+                        ARRAY_SIZE(i2c_board_info));
+                kirkwood_audio_init();
+        }
 }
 
 static int __init openrd_pci_init(void)
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index c29337074ad3..8fb5e5345557 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -133,7 +133,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
                 .rx_irq         = INT_24XX_MCBSP1_IRQ_RX,
                 .tx_irq         = INT_24XX_MCBSP1_IRQ_TX,
                 .ops            = &omap2_mcbsp_ops,
-                .buffer_size    = 0x6F,
+                .buffer_size    = 0x80, /* The FIFO has 128 locations */
         },
         {
                 .phys_base      = OMAP34XX_MCBSP2_BASE,
@@ -143,7 +143,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
                 .rx_irq         = INT_24XX_MCBSP2_IRQ_RX,
                 .tx_irq         = INT_24XX_MCBSP2_IRQ_TX,
                 .ops            = &omap2_mcbsp_ops,
-                .buffer_size    = 0x3FF,
+                .buffer_size    = 0x500, /* The FIFO has 1024 + 256 locations */
         },
         {
                 .phys_base      = OMAP34XX_MCBSP3_BASE,
@@ -153,7 +153,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
                 .rx_irq         = INT_24XX_MCBSP3_IRQ_RX,
                 .tx_irq         = INT_24XX_MCBSP3_IRQ_TX,
                 .ops            = &omap2_mcbsp_ops,
-                .buffer_size    = 0x6F,
+                .buffer_size    = 0x80, /* The FIFO has 128 locations */
         },
         {
                 .phys_base      = OMAP34XX_MCBSP4_BASE,
@@ -162,7 +162,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
                 .rx_irq         = INT_24XX_MCBSP4_IRQ_RX,
                 .tx_irq         = INT_24XX_MCBSP4_IRQ_TX,
                 .ops            = &omap2_mcbsp_ops,
-                .buffer_size    = 0x6F,
+                .buffer_size    = 0x80, /* The FIFO has 128 locations */
         },
         {
                 .phys_base      = OMAP34XX_MCBSP5_BASE,
@@ -171,7 +171,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
                 .rx_irq         = INT_24XX_MCBSP5_IRQ_RX,
                 .tx_irq         = INT_24XX_MCBSP5_IRQ_TX,
                 .ops            = &omap2_mcbsp_ops,
-                .buffer_size    = 0x6F,
+                .buffer_size    = 0x80, /* The FIFO has 128 locations */
         },
 };
 #define OMAP34XX_MCBSP_PDATA_SZ         ARRAY_SIZE(omap34xx_mcbsp_pdata)
diff --git a/arch/arm/plat-mxc/include/mach/ssi.h b/arch/arm/plat-mxc/include/mach/ssi.h
index c34ded523f10..63f3c2804239 100644
--- a/arch/arm/plat-mxc/include/mach/ssi.h
+++ b/arch/arm/plat-mxc/include/mach/ssi.h
@@ -10,6 +10,9 @@ struct imx_ssi_platform_data {
         unsigned int flags;
 #define IMX_SSI_DMA            (1 << 0)
 #define IMX_SSI_USE_AC97       (1 << 1)
+#define IMX_SSI_NET            (1 << 2)
+#define IMX_SSI_SYN            (1 << 3)
+#define IMX_SSI_USE_I2S_SLAVE  (1 << 4)
         void (*ac97_reset) (struct snd_ac97 *ac97);
         void (*ac97_warm_reset)(struct snd_ac97 *ac97);
 };
diff --git a/arch/arm/plat-omap/include/plat/mcbsp.h b/arch/arm/plat-omap/include/plat/mcbsp.h
index 975744f10a58..b4ff6a11a8f2 100644
--- a/arch/arm/plat-omap/include/plat/mcbsp.h
+++ b/arch/arm/plat-omap/include/plat/mcbsp.h
@@ -473,6 +473,7 @@ void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold);
 void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold);
 u16 omap_mcbsp_get_max_tx_threshold(unsigned int id);
 u16 omap_mcbsp_get_max_rx_threshold(unsigned int id);
+u16 omap_mcbsp_get_fifo_size(unsigned int id);
 u16 omap_mcbsp_get_tx_delay(unsigned int id);
 u16 omap_mcbsp_get_rx_delay(unsigned int id);
 int omap_mcbsp_get_dma_op_mode(unsigned int id);
@@ -483,6 +484,7 @@ static inline void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold)
 { }
 static inline u16 omap_mcbsp_get_max_tx_threshold(unsigned int id) { return 0; }
 static inline u16 omap_mcbsp_get_max_rx_threshold(unsigned int id) { return 0; }
+static inline u16 omap_mcbsp_get_fifo_size(unsigned int id) { return 0; }
 static inline u16 omap_mcbsp_get_tx_delay(unsigned int id) { return 0; }
 static inline u16 omap_mcbsp_get_rx_delay(unsigned int id) { return 0; }
 static inline int omap_mcbsp_get_dma_op_mode(unsigned int id) { return 0; }
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 7e669c9744d8..e31496e35b0f 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -481,9 +481,9 @@ int omap_st_is_enabled(unsigned int id)
 EXPORT_SYMBOL(omap_st_is_enabled);
 
 /*
- * omap_mcbsp_set_tx_threshold configures how to deal
- * with transmit threshold. the threshold value and handler can be
- * configure in here.
+ * omap_mcbsp_set_rx_threshold configures the transmit threshold in words.
+ * The threshold parameter is 1 based, and it is converted (threshold - 1)
+ * for the THRSH2 register.
  */
 void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold)
 {
@@ -498,14 +498,15 @@ void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold)
         }
         mcbsp = id_to_mcbsp_ptr(id);
 
-        MCBSP_WRITE(mcbsp, THRSH2, threshold);
+        if (threshold && threshold <= mcbsp->max_tx_thres)
+                MCBSP_WRITE(mcbsp, THRSH2, threshold - 1);
 }
 EXPORT_SYMBOL(omap_mcbsp_set_tx_threshold);
 
 /*
- * omap_mcbsp_set_rx_threshold configures how to deal
- * with receive threshold. the threshold value and handler can be
- * configure in here.
+ * omap_mcbsp_set_rx_threshold configures the receive threshold in words.
+ * The threshold parameter is 1 based, and it is converted (threshold - 1)
+ * for the THRSH1 register.
  */
 void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold)
 {
@@ -520,7 +521,8 @@ void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold)
         }
         mcbsp = id_to_mcbsp_ptr(id);
 
-        MCBSP_WRITE(mcbsp, THRSH1, threshold);
+        if (threshold && threshold <= mcbsp->max_rx_thres)
+                MCBSP_WRITE(mcbsp, THRSH1, threshold - 1);
 }
 EXPORT_SYMBOL(omap_mcbsp_set_rx_threshold);
 
@@ -560,8 +562,20 @@ u16 omap_mcbsp_get_max_rx_threshold(unsigned int id)
 }
 EXPORT_SYMBOL(omap_mcbsp_get_max_rx_threshold);
 
-#define MCBSP2_FIFO_SIZE        0x500 /* 1024 + 256 locations */
-#define MCBSP1345_FIFO_SIZE     0x80  /* 128 locations */
+u16 omap_mcbsp_get_fifo_size(unsigned int id)
+{
+        struct omap_mcbsp *mcbsp;
+
+        if (!omap_mcbsp_check_valid_id(id)) {
+                printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
+                return -ENODEV;
+        }
+        mcbsp = id_to_mcbsp_ptr(id);
+
+        return mcbsp->pdata->buffer_size;
+}
+EXPORT_SYMBOL(omap_mcbsp_get_fifo_size);
+
 /*
  * omap_mcbsp_get_tx_delay returns the number of used slots in the McBSP FIFO
  */
@@ -580,10 +594,7 @@ u16 omap_mcbsp_get_tx_delay(unsigned int id)
         buffstat = MCBSP_READ(mcbsp, XBUFFSTAT);
 
         /* Number of slots are different in McBSP ports */
-        if (mcbsp->id == 2)
-                return MCBSP2_FIFO_SIZE - buffstat;
-        else
-                return MCBSP1345_FIFO_SIZE - buffstat;
+        return mcbsp->pdata->buffer_size - buffstat;
 }
 EXPORT_SYMBOL(omap_mcbsp_get_tx_delay);
 
@@ -1683,8 +1694,16 @@ static inline void __devinit omap34xx_device_init(struct omap_mcbsp *mcbsp)
 {
         mcbsp->dma_op_mode = MCBSP_DMA_MODE_ELEMENT;
         if (cpu_is_omap34xx()) {
-                mcbsp->max_tx_thres = max_thres(mcbsp);
-                mcbsp->max_rx_thres = max_thres(mcbsp);
+                /*
+                 * Initially configure the maximum thresholds to a safe value.
+                 * The McBSP FIFO usage with these values should not go under
+                 * 16 locations.
+                 * If the whole FIFO without safety buffer is used, than there
+                 * is a possibility that the DMA will be not able to push the
+                 * new data on time, causing channel shifts in runtime.
+                 */
+                mcbsp->max_tx_thres = max_thres(mcbsp) - 0x10;
+                mcbsp->max_rx_thres = max_thres(mcbsp) - 0x10;
                 /*
                  * REVISIT: Set dmap_op_mode to THRESHOLD as default
                  * for mcbsp2 instances.
diff --git a/arch/arm/plat-orion/include/plat/audio.h b/arch/arm/plat-orion/include/plat/audio.h
new file mode 100644
index 000000000000..9cf1f781329b
--- /dev/null
+++ b/arch/arm/plat-orion/include/plat/audio.h
@@ -0,0 +1,11 @@
+#ifndef __PLAT_AUDIO_H
+#define __PLAT_AUDIO_H
+
+#include <linux/mbus.h>
+
+struct kirkwood_asoc_platform_data {
+        u32 tclk;
+        struct mbus_dram_target_info *dram;
+        int burst;
+};
+#endif