ARM: shmobile: bockw: add USB Function support

Bock-W USB1 (CN29) can be USB Host/Func by SW98/SW99 settings.
USB Func will be enabled if CONFIG_USB_RENESAS_USBHS_UDC[_MODULE]
was selected on this patch

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index 7ad868d0a047f75b9aecef26777ce0448eb3e059..330e84c14f8eed5da35eabcf5b27844d9c9be53c 100644 (file)
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -32,6 +32,7 @@
 #include <linux/smsc911x.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
+#include <linux/usb/renesas_usbhs.h>
 #include <media/soc_camera.h>
 #include <mach/common.h>
 #include <mach/irqs.h>
@@ -99,6 +100,16 @@ static void __iomem *fpga;
  * # amixer set "LINEOUT Mixer DACL" on
  */
 
+/*
+ * USB
+ *
+ * USB1 (CN29) can be Host/Function
+ *
+ *             Host    Func
+ * SW98                1       2
+ * SW99                1       3
+ */
+
 /* Dummy supplies, where voltage doesn't matter */
 static struct regulator_consumer_supply dummy_supplies[] = {
        REGULATOR_SUPPLY("vddvario", "smsc911x"),
@@ -117,13 +128,71 @@ static struct resource smsc911x_resources[] __initdata = {
        DEFINE_RES_IRQ(irq_pin(0)), /* IRQ 0 */
 };
 
+#if IS_ENABLED(CONFIG_USB_RENESAS_USBHS_UDC)
+/*
+ * When USB1 is Func
+ */
+static int usbhsf_get_id(struct platform_device *pdev)
+{
+       return USBHS_GADGET;
+}
+
+#define SUSPMODE       0x102
+static int usbhsf_power_ctrl(struct platform_device *pdev,
+                            void __iomem *base, int enable)
+{
+       enable = !!enable;
+
+       r8a7778_usb_phy_power(enable);
+
+       iowrite16(enable << 14, base + SUSPMODE);
+
+       return 0;
+}
+
+static struct resource usbhsf_resources[] __initdata = {
+       DEFINE_RES_MEM(0xffe60000, 0x110),
+       DEFINE_RES_IRQ(gic_iid(0x4f)),
+};
+
+static struct renesas_usbhs_platform_info usbhs_info __initdata = {
+       .platform_callback = {
+               .get_id         = usbhsf_get_id,
+               .power_ctrl     = usbhsf_power_ctrl,
+       },
+       .driver_param = {
+               .buswait_bwait  = 4,
+       },
+};
+
+#define USB_PHY_SETTING {.port1_func = 1, .ovc_pin[1].active_high = 1,}
+#define USB1_DEVICE    "renesas_usbhs"
+#define ADD_USB_FUNC_DEVICE_IF_POSSIBLE()                      \
+       platform_device_register_resndata(                      \
+               &platform_bus, "renesas_usbhs", -1,             \
+               usbhsf_resources,                               \
+               ARRAY_SIZE(usbhsf_resources),                   \
+               &usbhs_info, sizeof(struct renesas_usbhs_platform_info))
+
+#else
+/*
+ * When USB1 is Host
+ */
+#define USB_PHY_SETTING { }
+#define USB1_DEVICE    "ehci-platform"
+#define ADD_USB_FUNC_DEVICE_IF_POSSIBLE()
+
+#endif
+
 /* USB */
 static struct resource usb_phy_resources[] __initdata = {
        DEFINE_RES_MEM(0xffe70800, 0x100),
        DEFINE_RES_MEM(0xffe76000, 0x100),
 };
 
-static struct rcar_phy_platform_data usb_phy_platform_data __initdata;
+static struct rcar_phy_platform_data usb_phy_platform_data __initdata =
+       USB_PHY_SETTING;
+
 
 /* SDHI */
 static struct sh_mobile_sdhi_info sdhi0_info __initdata = {
@@ -445,7 +514,7 @@ static const struct pinctrl_map bockw_pinctrl_map[] = {
        /* USB */
        PIN_MAP_MUX_GROUP_DEFAULT("ehci-platform", "pfc-r8a7778",
                                  "usb0", "usb0"),
-       PIN_MAP_MUX_GROUP_DEFAULT("ehci-platform", "pfc-r8a7778",
+       PIN_MAP_MUX_GROUP_DEFAULT(USB1_DEVICE, "pfc-r8a7778",
                                  "usb1", "usb1"),
        /* SDHI0 */
        PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7778",
@@ -583,6 +652,12 @@ static void __init bockw_init(void)
        }
 }
 
+static void __init bockw_init_late(void)
+{
+       r8a7778_init_late();
+       ADD_USB_FUNC_DEVICE_IF_POSSIBLE();
+}
+
 static const char *bockw_boards_compat_dt[] __initdata = {
        "renesas,bockw",
        NULL,
@@ -593,5 +668,5 @@ DT_MACHINE_START(BOCKW_DT, "bockw")
        .init_irq       = r8a7778_init_irq_dt,
        .init_machine   = bockw_init,
        .dt_compat      = bockw_boards_compat_dt,
-       .init_late      = r8a7778_init_late,
+       .init_late      = bockw_init_late,
 MACHINE_END