From 491214e1f8129844289869bb6c231dc4542b11e3 Mon Sep 17 00:00:00 2001
From: Chaithrika U S <chaithrika@ti.com>
Date: Tue, 11 Aug 2009 17:03:25 -0400
Subject: [PATCH] davinci: Audio support for DA850/OMAP-L138 EVM
Define resources for McASP used on DA850/OMAP-L138 EVM, add platform
device defintion and Pin Mux configurations.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
---
arch/arm/mach-davinci/board-da850-evm.c | 29 ++++++++++++++++++
arch/arm/mach-davinci/da850.c | 39 ++++++++++++++++++++++++
arch/arm/mach-davinci/devices-da8xx.c | 34 ++++++++++++++++++++-
arch/arm/mach-davinci/include/mach/asp.h | 7 +++++
arch/arm/mach-davinci/include/mach/mux.h | 25 +++++++++++++++
5 files changed, 133 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index d98934629604..52bfe4cba25c 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -38,6 +38,28 @@ static struct davinci_uart_config da850_evm_uart_config __initdata = {
.enabled_uarts = 0x7,
};
+/* davinci da850 evm audio machine driver */
+static u8 da850_iis_serializer_direction[] = {
+ INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
+ INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
+ INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, TX_MODE,
+ RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
+};
+
+static struct snd_platform_data da850_evm_snd_data = {
+ .tx_dma_offset = 0x2000,
+ .rx_dma_offset = 0x2000,
+ .op_mode = DAVINCI_MCASP_IIS_MODE,
+ .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
+ .tdm_slots = 2,
+ .serial_dir = da850_iis_serializer_direction,
+ .eventq_no = EVENTQ_1,
+ .version = MCASP_VERSION_2,
+ .txnumevt = 1,
+ .rxnumevt = 1,
+};
+
+
static __init void da850_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
@@ -86,6 +108,13 @@ static __init void da850_evm_init(void)
*/
__raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
__raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
+
+ ret = da8xx_pinmux_setup(da850_mcasp_pins);
+ if (ret)
+ pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
+ ret);
+
+ da8xx_init_mcasp(0, &da850_evm_snd_data);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index c5efc515df4f..e440c09c5576 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -290,6 +290,13 @@ static struct clk emac_clk = {
.psc_ctlr = 1,
};
+static struct clk mcasp_clk = {
+ .name = "mcasp",
+ .parent = &pll0_sysclk2,
+ .lpsc = DA8XX_LPSC1_McASP0,
+ .psc_ctlr = 1,
+};
+
static struct davinci_clk da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@@ -327,6 +334,7 @@ static struct davinci_clk da850_clks[] = {
CLK(NULL, "arm", &arm_clk),
CLK(NULL, "rmii", &rmii_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
+ CLK("davinci-mcasp.0", NULL, &mcasp_clk),
CLK(NULL, NULL, NULL),
};
@@ -373,6 +381,30 @@ static const struct mux_config da850_pins[] = {
MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false)
MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false)
MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false)
+ /* McASP function */
+ MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false)
+ MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false)
+ MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false)
+ MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false)
+ MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false)
+ MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false)
+ MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false)
+ MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false)
+ MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false)
+ MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false)
+ MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false)
+ MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false)
+ MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false)
+ MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false)
+ MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false)
+ MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false)
+ MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false)
+ MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false)
+ MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false)
+ MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false)
+ MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
+ MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
+ MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
#endif
};
@@ -410,6 +442,13 @@ const short da850_cpgmac_pins[] __initdata = {
-1
};
+const short da850_mcasp_pins[] __initdata = {
+ DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
+ DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE,
+ DA850_AXR_11, DA850_AXR_12,
+ -1
+};
+
/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
[IRQ_DA8XX_COMMTX] = 7,
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index fe0baafcf610..1882eef3aead 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -309,6 +309,34 @@ static struct platform_device da830_mcasp1_device = {
.resource = da830_mcasp1_resources,
};
+static struct resource da850_mcasp_resources[] = {
+ {
+ .name = "mcasp",
+ .start = DAVINCI_DA8XX_MCASP0_REG_BASE,
+ .end = DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ /* TX event */
+ {
+ .start = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
+ .end = DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
+ .flags = IORESOURCE_DMA,
+ },
+ /* RX event */
+ {
+ .start = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
+ .end = DAVINCI_DA8XX_DMA_MCASP0_AREVT,
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+static struct platform_device da850_mcasp_device = {
+ .name = "davinci-mcasp",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(da850_mcasp_resources),
+ .resource = da850_mcasp_resources,
+};
+
int __init da8xx_register_emac(void)
{
return platform_device_register(&da8xx_emac_device);
@@ -316,8 +344,12 @@ int __init da8xx_register_emac(void)
void __init da8xx_init_mcasp(int id, struct snd_platform_data *pdata)
{
- if (id == 1) { /* DA830/OMAP-L137 has 3 instances of McASP */
+ /* DA830/OMAP-L137 has 3 instances of McASP */
+ if (cpu_is_davinci_da830() && id == 1) {
da830_mcasp1_device.dev.platform_data = pdata;
platform_device_register(&da830_mcasp1_device);
+ } else if (cpu_is_davinci_da850()) {
+ da850_mcasp_device.dev.platform_data = pdata;
+ platform_device_register(&da850_mcasp_device);
}
}
diff --git a/arch/arm/mach-davinci/include/mach/asp.h b/arch/arm/mach-davinci/include/mach/asp.h
index f3c97ac3425c..18e4ce34ece6 100644
--- a/arch/arm/mach-davinci/include/mach/asp.h
+++ b/arch/arm/mach-davinci/include/mach/asp.h
@@ -15,6 +15,9 @@
#define DAVINCI_DM646X_MCASP0_REG_BASE 0x01D01000
#define DAVINCI_DM646X_MCASP1_REG_BASE 0x01D01800
+/* Bases of da850/da830 McASP0 register banks */
+#define DAVINCI_DA8XX_MCASP0_REG_BASE 0x01D00000
+
/* Bases of da830 McASP1 register banks */
#define DAVINCI_DA830_MCASP1_REG_BASE 0x01D04000
@@ -29,6 +32,10 @@
#define DAVINCI_DM646X_DMA_MCASP0_AREVT0 9
#define DAVINCI_DM646X_DMA_MCASP1_AXEVT1 12
+/* EDMA channels of da850/da830 McASP0 */
+#define DAVINCI_DA8XX_DMA_MCASP0_AREVT 0
+#define DAVINCI_DA8XX_DMA_MCASP0_AXEVT 1
+
/* EDMA channels of da830 McASP1 */
#define DAVINCI_DA830_DMA_MCASP1_AREVT 2
#define DAVINCI_DA830_DMA_MCASP1_AXEVT 3
diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h
index 8676680fc5b6..82d751461856 100644
--- a/arch/arm/mach-davinci/include/mach/mux.h
+++ b/arch/arm/mach-davinci/include/mach/mux.h
@@ -750,6 +750,31 @@ enum davinci_da850_index {
DA850_MII_RXD_0,
DA850_MDIO_CLK,
DA850_MDIO_D,
+
+ /* McASP function */
+ DA850_ACLKR,
+ DA850_ACLKX,
+ DA850_AFSR,
+ DA850_AFSX,
+ DA850_AHCLKR,
+ DA850_AHCLKX,
+ DA850_AMUTE,
+ DA850_AXR_15,
+ DA850_AXR_14,
+ DA850_AXR_13,
+ DA850_AXR_12,
+ DA850_AXR_11,
+ DA850_AXR_10,
+ DA850_AXR_9,
+ DA850_AXR_8,
+ DA850_AXR_7,
+ DA850_AXR_6,
+ DA850_AXR_5,
+ DA850_AXR_4,
+ DA850_AXR_3,
+ DA850_AXR_2,
+ DA850_AXR_1,
+ DA850_AXR_0,
};
#ifdef CONFIG_DAVINCI_MUX
--
2.34.1