[ARM] 4910/1: [AT91] AT73C213 audio on SAM9260-EK and SAM9261-EK boards

[linux-2.6-omap-h63xx.git] / arch / arm / mach-at91 / board-sam9261ek.c

diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index 3c73825b58dea2fdaf6a4b530d6a7f32f32b164f..ce512d74e6e988cef5ed09615ac0b99478d4c221 100644 (file)
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -26,6 +26,8 @@
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
+#include <linux/spi/at73c213.h>
+#include <linux/clk.h>
 #include <linux/dm9000.h>
 #include <linux/fb.h>
 #include <linux/gpio_keys.h>
@@ -230,6 +232,35 @@ static void __init ek_add_device_ts(void)
 static void __init ek_add_device_ts(void) {}
 #endif
 
+/*
+ * Audio
+ */
+static struct at73c213_board_info at73c213_data = {
+       .ssc_id         = 1,
+       .shortname      = "AT91SAM9261-EK external DAC",
+};
+
+#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
+static void __init at73c213_set_clk(struct at73c213_board_info *info)
+{
+       struct clk *pck2;
+       struct clk *plla;
+
+       pck2 = clk_get(NULL, "pck2");
+       plla = clk_get(NULL, "plla");
+
+       /* AT73C213 MCK Clock */
+       at91_set_B_periph(AT91_PIN_PB31, 0);    /* PCK2 */
+
+       clk_set_parent(pck2, plla);
+       clk_put(plla);
+
+       info->dac_clk = pck2;
+}
+#else
+static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
+#endif
+
 /*
  * SPI devices
  */
@@ -248,6 +279,7 @@ static struct spi_board_info ek_spi_devices[] = {
                .bus_num        = 0,
                .platform_data  = &ads_info,
                .irq            = AT91SAM9261_ID_IRQ0,
+               .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
        },
 #endif
 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
@@ -263,6 +295,9 @@ static struct spi_board_info ek_spi_devices[] = {
                .chip_select    = 3,
                .max_speed_hz   = 10 * 1000 * 1000,
                .bus_num        = 0,
+               .mode           = SPI_MODE_1,
+               .platform_data  = &at73c213_data,
+               .controller_data = (void*) AT91_PIN_PA29,       /* default for CS3 is PA6, but it must be PA29 */
        },
 #endif
 };
@@ -473,6 +508,9 @@ static void __init ek_board_init(void)
        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
        /* Touchscreen */
        ek_add_device_ts();
+       /* SSC (to AT73C213) */
+       at73c213_set_clk(&at73c213_data);
+       at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
 #else
        /* MMC */
        at91_add_device_mmc(0, &ek_mmc_data);