mach-ux500: add MUSB to db8500 devices

- DMA tx and rx maps for usb channels are set to be configured at
  runtime
- GPIO configurations for usb are added
- MUSB is enabled with soc specific base address, irq and dma
  configurations

Signed-off-by: Mian Yousaf Kaukab <mian-yousaf.kaukab@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

4 files changed, 64 insertions, 2 deletions

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index ffe3cf1451a..5babce49741 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -83,6 +83,20 @@ static pin_cfg_t mop500_pins[] = {
 
         /* touch screen */
         GPIO84_GPIO     | PIN_INPUT_PULLUP,
+
+        /* USB OTG */
+        GPIO256_USB_NXT         | PIN_PULL_DOWN,
+        GPIO257_USB_STP         | PIN_PULL_UP,
+        GPIO258_USB_XCLK        | PIN_PULL_DOWN,
+        GPIO259_USB_DIR         | PIN_PULL_DOWN,
+        GPIO260_USB_DAT7        | PIN_PULL_DOWN,
+        GPIO261_USB_DAT6        | PIN_PULL_DOWN,
+        GPIO262_USB_DAT5        | PIN_PULL_DOWN,
+        GPIO263_USB_DAT4        | PIN_PULL_DOWN,
+        GPIO264_USB_DAT3        | PIN_PULL_DOWN,
+        GPIO265_USB_DAT2        | PIN_PULL_DOWN,
+        GPIO266_USB_DAT1        | PIN_PULL_DOWN,
+        GPIO267_USB_DAT0        | PIN_PULL_DOWN,
 };
 
 static struct ab8500_platform_data ab8500_platdata = {
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 5c0fabf5fa0..516126cb357 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -23,8 +23,10 @@
 #include <mach/hardware.h>
 #include <mach/setup.h>
 #include <mach/devices.h>
+#include <mach/usb.h>
 
 #include "devices-db8500.h"
+#include "ste-dma40-db8500.h"
 
 /* minimum static i/o mapping required to boot U8500 platforms */
 static struct map_desc u8500_uart_io_desc[] __initdata = {
@@ -154,6 +156,28 @@ static void __init db8500_add_gpios(void)
                          IRQ_DB8500_GPIO0, &pdata);
 }
 
+static int usb_db8500_rx_dma_cfg[] = {
+        DB8500_DMA_DEV38_USB_OTG_IEP_1_9,
+        DB8500_DMA_DEV37_USB_OTG_IEP_2_10,
+        DB8500_DMA_DEV36_USB_OTG_IEP_3_11,
+        DB8500_DMA_DEV19_USB_OTG_IEP_4_12,
+        DB8500_DMA_DEV18_USB_OTG_IEP_5_13,
+        DB8500_DMA_DEV17_USB_OTG_IEP_6_14,
+        DB8500_DMA_DEV16_USB_OTG_IEP_7_15,
+        DB8500_DMA_DEV39_USB_OTG_IEP_8
+};
+
+static int usb_db8500_tx_dma_cfg[] = {
+        DB8500_DMA_DEV38_USB_OTG_OEP_1_9,
+        DB8500_DMA_DEV37_USB_OTG_OEP_2_10,
+        DB8500_DMA_DEV36_USB_OTG_OEP_3_11,
+        DB8500_DMA_DEV19_USB_OTG_OEP_4_12,
+        DB8500_DMA_DEV18_USB_OTG_OEP_5_13,
+        DB8500_DMA_DEV17_USB_OTG_OEP_6_14,
+        DB8500_DMA_DEV16_USB_OTG_OEP_7_15,
+        DB8500_DMA_DEV39_USB_OTG_OEP_8
+};
+
 /*
  * This function is called from the board init
  */
@@ -164,6 +188,7 @@ void __init u8500_init_devices(void)
 
         db8500_add_rtc();
         db8500_add_gpios();
+        db8500_add_usb(usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
 
         platform_device_register_simple("cpufreq-u8500", -1, NULL, 0);
         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index 23c695d5497..f122d4ee3b2 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -69,10 +69,30 @@ struct stedma40_chan_cfg dma40_memcpy_conf_log = {
  * Mapping between destination event lines and physical device address.
  * The event line is tied to a device and therefor the address is constant.
  */
-static const dma_addr_t dma40_tx_map[DB8500_DMA_NR_DEV];
+static const dma_addr_t dma40_tx_map[DB8500_DMA_NR_DEV] = {
+        /* MUSB - these will be runtime-reconfigured */
+        [DB8500_DMA_DEV39_USB_OTG_OEP_8] = -1,
+        [DB8500_DMA_DEV16_USB_OTG_OEP_7_15] = -1,
+        [DB8500_DMA_DEV17_USB_OTG_OEP_6_14] = -1,
+        [DB8500_DMA_DEV18_USB_OTG_OEP_5_13] = -1,
+        [DB8500_DMA_DEV19_USB_OTG_OEP_4_12] = -1,
+        [DB8500_DMA_DEV36_USB_OTG_OEP_3_11] = -1,
+        [DB8500_DMA_DEV37_USB_OTG_OEP_2_10] = -1,
+        [DB8500_DMA_DEV38_USB_OTG_OEP_1_9] = -1,
+};
 
 /* Mapping between source event lines and physical device address */
-static const dma_addr_t dma40_rx_map[DB8500_DMA_NR_DEV];
+static const dma_addr_t dma40_rx_map[DB8500_DMA_NR_DEV] = {
+        /* MUSB - these will be runtime-reconfigured */
+        [DB8500_DMA_DEV39_USB_OTG_IEP_8] = -1,
+        [DB8500_DMA_DEV16_USB_OTG_IEP_7_15] = -1,
+        [DB8500_DMA_DEV17_USB_OTG_IEP_6_14] = -1,
+        [DB8500_DMA_DEV18_USB_OTG_IEP_5_13] = -1,
+        [DB8500_DMA_DEV19_USB_OTG_IEP_4_12] = -1,
+        [DB8500_DMA_DEV36_USB_OTG_IEP_3_11] = -1,
+        [DB8500_DMA_DEV37_USB_OTG_IEP_2_10] = -1,
+        [DB8500_DMA_DEV38_USB_OTG_IEP_1_9] = -1,
+};
 
 /* Reserved event lines for memcpy only */
 static int dma40_memcpy_event[] = {
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 3a770c75697..d1ea4bd0329 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -61,6 +61,9 @@ db8500_add_ssp(const char *name, resource_size_t base, int irq,
 #define db8500_add_rtc() \
         dbx500_add_rtc(U8500_RTC_BASE, IRQ_DB8500_RTC);
 
+#define db8500_add_usb(rx_cfg, tx_cfg) \
+        ux500_add_usb(U8500_USBOTG_BASE, IRQ_DB8500_USBOTG, rx_cfg, tx_cfg)
+
 #define db8500_add_sdi0(pdata) \
         dbx500_add_sdi("sdi0", U8500_SDI0_BASE, IRQ_DB8500_SDMMC0, pdata)
 #define db8500_add_sdi1(pdata) \