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authorPavankumar Kondeti <pkondeti@codeaurora.org>2010-12-08 11:07:07 +0300
committerDavid Brown <davidb@codeaurora.org>2010-12-17 00:53:39 +0300
commit7032d512cff979319f308e02223d0cf39b6e9a91 (patch)
tree871c5da649467110403a97f2a873449d72e74b91 /arch/arm/mach-msm
parent50bc0ef42c76879f5d68a88c7063603dc0c9789b (diff)
downloadlinux-7032d512cff979319f308e02223d0cf39b6e9a91.tar.xz
MSM: Add USB suport for QSD8x50
OTG driver takes care of putting hardware into low power mode. Hence make peripheral and host devices as children of OTG device and let runtime PM takes care of notifying peripheral and host state to OTG device. VBUS power up and shutdown routines are implemented by modem processor. As RPC infrastructure is not available, configure USB in peripheral only mode. Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
Diffstat (limited to 'arch/arm/mach-msm')
-rw-r--r--arch/arm/mach-msm/board-qsd8x50.c19
-rw-r--r--arch/arm/mach-msm/devices-qsd8x50.c71
-rw-r--r--arch/arm/mach-msm/devices.h2
3 files changed, 92 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index ed2af4ad97ed..2e8391307f55 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -20,6 +20,7 @@
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
+#include <linux/usb/msm_hsusb.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -74,9 +75,24 @@ static int __init msm_init_smc91x(void)
}
module_init(msm_init_smc91x);
+static int hsusb_phy_init_seq[] = {
+ 0x08, 0x31, /* Increase HS Driver Amplitude */
+ 0x20, 0x32, /* Enable and set Pre-Emphasis Depth to 10% */
+ -1
+};
+
+static struct msm_otg_platform_data msm_otg_pdata = {
+ .phy_init_seq = hsusb_phy_init_seq,
+ .mode = USB_PERIPHERAL,
+ .otg_control = OTG_PHY_CONTROL,
+};
+
static struct platform_device *devices[] __initdata = {
&msm_device_uart3,
&msm_device_smd,
+ &msm_device_otg,
+ &msm_device_hsusb,
+ &msm_device_hsusb_host,
};
static void __init qsd8x50_map_io(void)
@@ -93,6 +109,9 @@ static void __init qsd8x50_init_irq(void)
static void __init qsd8x50_init(void)
{
+ msm_device_otg.dev.platform_data = &msm_otg_pdata;
+ msm_device_hsusb.dev.parent = &msm_device_otg.dev;
+ msm_device_hsusb_host.dev.parent = &msm_device_otg.dev;
platform_add_devices(devices, ARRAY_SIZE(devices));
}
diff --git a/arch/arm/mach-msm/devices-qsd8x50.c b/arch/arm/mach-msm/devices-qsd8x50.c
index 6fe67c5d1ae0..a4b798f20ccb 100644
--- a/arch/arm/mach-msm/devices-qsd8x50.c
+++ b/arch/arm/mach-msm/devices-qsd8x50.c
@@ -53,6 +53,77 @@ struct platform_device msm_device_smd = {
.id = -1,
};
+static struct resource resources_otg[] = {
+ {
+ .start = MSM_HSUSB_PHYS,
+ .end = MSM_HSUSB_PHYS + MSM_HSUSB_SIZE,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_USB_HS,
+ .end = INT_USB_HS,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device msm_device_otg = {
+ .name = "msm_otg",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(resources_otg),
+ .resource = resources_otg,
+ .dev = {
+ .coherent_dma_mask = 0xffffffff,
+ },
+};
+
+static struct resource resources_hsusb[] = {
+ {
+ .start = MSM_HSUSB_PHYS,
+ .end = MSM_HSUSB_PHYS + MSM_HSUSB_SIZE,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_USB_HS,
+ .end = INT_USB_HS,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device msm_device_hsusb = {
+ .name = "msm_hsusb",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(resources_hsusb),
+ .resource = resources_hsusb,
+ .dev = {
+ .coherent_dma_mask = 0xffffffff,
+ },
+};
+
+static u64 dma_mask = 0xffffffffULL;
+static struct resource resources_hsusb_host[] = {
+ {
+ .start = MSM_HSUSB_PHYS,
+ .end = MSM_HSUSB_PHYS + MSM_HSUSB_SIZE,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_USB_HS,
+ .end = INT_USB_HS,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device msm_device_hsusb_host = {
+ .name = "msm_hsusb_host",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(resources_hsusb_host),
+ .resource = resources_hsusb_host,
+ .dev = {
+ .dma_mask = &dma_mask,
+ .coherent_dma_mask = 0xffffffffULL,
+ },
+};
+
struct clk msm_clocks_8x50[] = {
CLK_PCOM("adm_clk", ADM_CLK, NULL, 0),
CLK_PCOM("ebi1_clk", EBI1_CLK, NULL, CLK_MIN),
diff --git a/arch/arm/mach-msm/devices.h b/arch/arm/mach-msm/devices.h
index 68b8075f8ca4..87c70bfce2bd 100644
--- a/arch/arm/mach-msm/devices.h
+++ b/arch/arm/mach-msm/devices.h
@@ -28,6 +28,8 @@ extern struct platform_device msm_device_sdc3;
extern struct platform_device msm_device_sdc4;
extern struct platform_device msm_device_hsusb;
+extern struct platform_device msm_device_otg;
+extern struct platform_device msm_device_hsusb_host;
extern struct platform_device msm_device_i2c;