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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2015-03-12 08:06:28 (GMT)
committerSekhar Nori <nsekhar@ti.com>2015-03-18 10:22:05 (GMT)
commit3775c31376329830b547fa5e11f966bec2a92cbe (patch)
tree8e3f0cd875ab855adaec49b58cf27c8e0d831ddc
parentc96aacb1329d5632980ad8b91be197b509a2e778 (diff)
downloadlinux-3775c31376329830b547fa5e11f966bec2a92cbe.tar.xz
ARM: davinci: devices-da8xx: Add support for McASP2 on da830
da830 has three McASP blocks. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
-rw-r--r--arch/arm/mach-davinci/asp.h7
-rw-r--r--arch/arm/mach-davinci/devices-da8xx.c41
2 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/asp.h b/arch/arm/mach-davinci/asp.h
index d9b2acd..1128e1d 100644
--- a/arch/arm/mach-davinci/asp.h
+++ b/arch/arm/mach-davinci/asp.h
@@ -21,6 +21,9 @@
/* Bases of da830 McASP1 register banks */
#define DAVINCI_DA830_MCASP1_REG_BASE 0x01D04000
+/* Bases of da830 McASP2 register banks */
+#define DAVINCI_DA830_MCASP2_REG_BASE 0x01D08000
+
/* EDMA channels of dm644x and dm355 */
#define DAVINCI_DMA_ASP0_TX 2
#define DAVINCI_DMA_ASP0_RX 3
@@ -40,6 +43,10 @@
#define DAVINCI_DA830_DMA_MCASP1_AREVT 2
#define DAVINCI_DA830_DMA_MCASP1_AXEVT 3
+/* EDMA channels of da830 McASP2 */
+#define DAVINCI_DA830_DMA_MCASP2_AREVT 4
+#define DAVINCI_DA830_DMA_MCASP2_AXEVT 5
+
/* Interrupts */
#define DAVINCI_ASP0_RX_INT IRQ_MBRINT
#define DAVINCI_ASP0_TX_INT IRQ_MBXINT
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index fdc3219..ddfdd82 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -489,6 +489,41 @@ static struct platform_device da830_mcasp1_device = {
.resource = da830_mcasp1_resources,
};
+static struct resource da830_mcasp2_resources[] = {
+ {
+ .name = "mpu",
+ .start = DAVINCI_DA830_MCASP2_REG_BASE,
+ .end = DAVINCI_DA830_MCASP2_REG_BASE + (SZ_1K * 12) - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ /* TX event */
+ {
+ .name = "tx",
+ .start = DAVINCI_DA830_DMA_MCASP2_AXEVT,
+ .end = DAVINCI_DA830_DMA_MCASP2_AXEVT,
+ .flags = IORESOURCE_DMA,
+ },
+ /* RX event */
+ {
+ .name = "rx",
+ .start = DAVINCI_DA830_DMA_MCASP2_AREVT,
+ .end = DAVINCI_DA830_DMA_MCASP2_AREVT,
+ .flags = IORESOURCE_DMA,
+ },
+ {
+ .name = "common",
+ .start = IRQ_DA8XX_MCASPINT,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device da830_mcasp2_device = {
+ .name = "davinci-mcasp",
+ .id = 2,
+ .num_resources = ARRAY_SIZE(da830_mcasp2_resources),
+ .resource = da830_mcasp2_resources,
+};
+
static struct resource da850_mcasp_resources[] = {
{
.name = "mpu",
@@ -539,6 +574,12 @@ void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
return;
pdev = &da830_mcasp1_device;
break;
+ case 2:
+ /* Valid for DA830/OMAP-L137 only */
+ if (!cpu_is_davinci_da830())
+ return;
+ pdev = &da830_mcasp2_device;
+ break;
default:
return;
}