[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 0ce38dfa6ebe3cdc1e3140a9cc030b99707feb24..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>
@@ -44,22 +46,11 @@
 
 #include <asm/arch/board.h>
 #include <asm/arch/gpio.h>
-#include <asm/arch/at91sam926x_mc.h>
+#include <asm/arch/at91sam9_smc.h>
 
 #include "generic.h"
 
 
-/*
- * Serial port configuration.
- *    0 .. 2 = USART0 .. USART2
- *    3      = DBGU
- */
-static struct at91_uart_config __initdata ek_uart_config = {
-       .console_tty    = 0,                            /* ttyS0 */
-       .nr_tty         = 1,
-       .tty_map        = { 3, -1, -1, -1 }             /* ttyS0, ..., ttyS3 */
-};
-
 static void __init ek_map_io(void)
 {
        /* Initialize processor: 18.432 MHz crystal */
@@ -68,8 +59,11 @@ static void __init ek_map_io(void)
        /* Setup the LEDs */
        at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
 
-       /* Setup the serial ports and console */
-       at91_init_serial(&ek_uart_config);
+       /* DGBU on ttyS0. (Rx & Tx only) */
+       at91_register_uart(0, 0, 0);
+
+       /* set serial console to ttyS0 (ie, DBGU) */
+       at91_set_serial_console(0);
 }
 
 static void __init ek_init_irq(void)
@@ -238,6 +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
  */
@@ -256,6 +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)
@@ -271,6 +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
 };
@@ -481,6 +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);