Merge branch 'l2x0-pull-rmk' of git://dev.omapzoom.org/pub/scm/santosh/kernel-omap4...

[pandora-kernel.git] / arch / arm / mach-omap2 / devices.c

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 5eb0b58..5a0c148 100644 (file)
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -9,7 +9,6 @@
  * (at your option) any later version.
  */
 
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
@@ -23,9 +22,9 @@
 #include <asm/mach/map.h>
 #include <asm/pmu.h>
 
-#include <plat/control.h>
 #include <plat/tc.h>
 #include <plat/board.h>
+#include <plat/mcbsp.h>
 #include <mach/gpio.h>
 #include <plat/mmc.h>
 #include <plat/dma.h>
@@ -33,6 +32,7 @@
 #include <plat/omap_device.h>
 
 #include "mux.h"
+#include "control.h"
 
 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
 
@@ -238,6 +238,43 @@ static inline void omap_init_mbox(void) { }
 
 static inline void omap_init_sti(void) {}
 
+#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
+
+static struct platform_device omap_pcm = {
+       .name   = "omap-pcm-audio",
+       .id     = -1,
+};
+
+/*
+ * OMAP2420 has 2 McBSP ports
+ * OMAP2430 has 5 McBSP ports
+ * OMAP3 has 5 McBSP ports
+ * OMAP4 has 4 McBSP ports
+ */
+OMAP_MCBSP_PLATFORM_DEVICE(1);
+OMAP_MCBSP_PLATFORM_DEVICE(2);
+OMAP_MCBSP_PLATFORM_DEVICE(3);
+OMAP_MCBSP_PLATFORM_DEVICE(4);
+OMAP_MCBSP_PLATFORM_DEVICE(5);
+
+static void omap_init_audio(void)
+{
+       platform_device_register(&omap_mcbsp1);
+       platform_device_register(&omap_mcbsp2);
+       if (cpu_is_omap243x() || cpu_is_omap34xx() || cpu_is_omap44xx()) {
+               platform_device_register(&omap_mcbsp3);
+               platform_device_register(&omap_mcbsp4);
+       }
+       if (cpu_is_omap243x() || cpu_is_omap34xx())
+               platform_device_register(&omap_mcbsp5);
+
+       platform_device_register(&omap_pcm);
+}
+
+#else
+static inline void omap_init_audio(void) {}
+#endif
+
 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
 
 #include <plat/mcspi.h>
@@ -914,12 +951,74 @@ static inline void omap_init_vout(void) {}
 
 /*-------------------------------------------------------------------------*/
 
+/*
+ * Inorder to avoid any assumptions from bootloader regarding WDT
+ * settings, WDT module is reset during init. This enables the watchdog
+ * timer. Hence it is required to disable the watchdog after the WDT reset
+ * during init. Otherwise the system would reboot as per the default
+ * watchdog timer registers settings.
+ */
+#define OMAP_WDT_WPS   (0x34)
+#define OMAP_WDT_SPR   (0x48)
+
+static int omap2_disable_wdt(struct omap_hwmod *oh, void *unused)
+{
+       void __iomem *base;
+       int ret;
+
+       if (!oh) {
+               pr_err("%s: Could not look up wdtimer_hwmod\n", __func__);
+               return -EINVAL;
+       }
+
+       base = omap_hwmod_get_mpu_rt_va(oh);
+       if (!base) {
+               pr_err("%s: Could not get the base address for %s\n",
+                               oh->name, __func__);
+               return -EINVAL;
+       }
+
+       /* Enable the clocks before accessing the WDT registers */
+       ret = omap_hwmod_enable(oh);
+       if (ret) {
+               pr_err("%s: Could not enable clocks for %s\n",
+                               oh->name, __func__);
+               return ret;
+       }
+
+       /* sequence required to disable watchdog */
+       __raw_writel(0xAAAA, base + OMAP_WDT_SPR);
+       while (__raw_readl(base + OMAP_WDT_WPS) & 0x10)
+               cpu_relax();
+
+       __raw_writel(0x5555, base + OMAP_WDT_SPR);
+       while (__raw_readl(base + OMAP_WDT_WPS) & 0x10)
+               cpu_relax();
+
+       ret = omap_hwmod_idle(oh);
+       if (ret)
+               pr_err("%s: Could not disable clocks for %s\n",
+                               oh->name, __func__);
+
+       return ret;
+}
+
+static void __init omap_disable_wdt(void)
+{
+       if (cpu_class_is_omap2())
+               omap_hwmod_for_each_by_class("wd_timer",
+                                               omap2_disable_wdt, NULL);
+       return;
+}
+
 static int __init omap2_init_devices(void)
 {
        /* please keep these calls, and their implementations above,
         * in alphabetical order so they're easier to sort through.
         */
+       omap_disable_wdt();
        omap_hsmmc_reset();
+       omap_init_audio();
        omap_init_camera();
        omap_init_mbox();
        omap_init_mcspi();