[U-Boot] [RFC] [UBOOT] [PATCH v3 5/7] omap5: usb: Add usb otg clocks and enable

Dan Murphy
2013-07-02T15:15:11Z

Add and enable the USB OTG clocks.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
arch/arm/cpu/armv7/omap5/hw_data.c | 14 ++++++++++++++
arch/arm/cpu/armv7/omap5/prcm-regs.c | 1 +
arch/arm/include/asm/arch-omap5/clock.h | 4 ++++
arch/arm/include/asm/omap_common.h | 1 +
common/cmd_usb.c | 6 +++++-
include/configs/omap5_common.h | 9 +++++++++
6 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 56cf1f8..7b88338 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -456,6 +456,20 @@ void enable_basic_clocks(void)
OPTFCLKEN_SCRM_PER_MASK);
setbits_le32((*prcm)->cm_wkupaon_scrm_clkctrl,
OPTFCLKEN_SCRM_CORE_MASK);
+
+/* TODO wrap this with USB defines */
+ /* Setting OCP2SCP1 register */
+ setbits_le32((*prcm)->cm_l3init_ocp2scp1_clkctrl,
+ MODULE_CLKCTRL_MODULEMODE_HW_AUTO);
+
+ /* Select USB OTG SS clock */
+ setbits_le32((*prcm)->cm_l3init_usb_otg_ss_clkctrl,
+ (MODULE_CLKCTRL_MODULEMODE_HW_AUTO |
+ OPTFCLKEN_USB_OTG_SS_FCLK_MASK));
+
+ /* Setting l3init register */
+ setbits_le32((*prcm)->cm_l3init_clkstctrl, OPTFCLKEN_USB_OTG_SS_FCLK_MASK);
+
}

void enable_basic_uboot_clocks(void)
diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
index e839ff5..f90da58 100644
--- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
+++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
@@ -718,6 +718,7 @@ struct prcm_regs const omap5_es2_prcm = {
.cm_l3init_p1500_clkctrl = 0x4a009678,
.cm_l3init_fsusb_clkctrl = 0x4a0096d0,
.cm_l3init_ocp2scp1_clkctrl = 0x4a0096e0,
+ .cm_l3init_usb_otg_ss_clkctrl = 0x4a0096f0,

/* prm irqstatus regs */
.prm_irqstatus_mpu_2 = 0x4ae06014,
diff --git a/arch/arm/include/asm/arch-omap5/clock.h b/arch/arm/include/asm/arch-omap5/clock.h
index 4d2765d..24ef2bc 100644
--- a/arch/arm/include/asm/arch-omap5/clock.h
+++ b/arch/arm/include/asm/arch-omap5/clock.h
@@ -165,6 +165,10 @@
/* CM_L3INIT_USBPHY_CLKCTRL */
#define USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK 8

+/* CM_L3INIT_USB_OTG_SS_CLKCTRL */
+#define OPTFCLKEN_USB_OTG_SS_FCLK_SHIFT 8
+#define OPTFCLKEN_USB_OTG_SS_FCLK_MASK (1 << 8)
+
/* CM_MPU_MPU_CLKCTRL */
#define MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_SHIFT 24
#define MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_MASK (3 << 24)
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 0dbe81b..11cc870 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -241,6 +241,7 @@ struct prcm_regs {
u32 cm_l3init_p1500_clkctrl;
u32 cm_l3init_fsusb_clkctrl;
u32 cm_l3init_ocp2scp1_clkctrl;
+ u32 cm_l3init_usb_otg_ss_clkctrl;

u32 prm_irqstatus_mpu_2;

diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index 70e803b..816fb23 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -31,6 +31,7 @@
#include <asm/unaligned.h>
#include <part.h>
#include <usb.h>
+#include <linux/usb/usb-compat.h>

#ifdef CONFIG_USB_STORAGE
static int usb_stor_curr_dev = -1; /* current device */
@@ -160,6 +161,7 @@ static void usb_display_string(struct usb_device *dev, int index)

static void usb_display_desc(struct usb_device *dev)
{
+#if 0
if (dev->descriptor.bDescriptorType == USB_DT_DEVICE) {
printf("%d: %s, USB Revision %x.%x\n", dev->devnum,
usb_get_class_desc(dev->config.if_desc[0].desc.bInterfaceClass),
@@ -189,7 +191,7 @@ static void usb_display_desc(struct usb_device *dev)
(dev->descriptor.bcdDevice>>8) & 0xff,
dev->descriptor.bcdDevice & 0xff);
}
-
+#endif
}

static void usb_display_conf_desc(struct usb_config_descriptor *config,
@@ -350,10 +352,12 @@ static void usb_show_tree_graph(struct usb_device *dev, char *pre)
pre[index++] = ' ';
pre[index++] = has_child ? '|' : ' ';
pre[index] = 0;
+#if 0
printf(" %s (%s, %dmA)\n", usb_get_class_desc(
dev->config.if_desc[0].desc.bInterfaceClass),
portspeed(dev->speed),
dev->config.desc.bMaxPower * 2);
+#endif
if (strlen(dev->mf) || strlen(dev->prod) || strlen(dev->serial))
printf(" %s %s %s %s\n", pre, dev->mf, dev->prod, dev->serial);
printf(" %s\n", pre);
diff --git a/include/configs/omap5_common.h b/include/configs/omap5_common.h
index b87ee42..1df553e 100644
--- a/include/configs/omap5_common.h
+++ b/include/configs/omap5_common.h
@@ -96,6 +96,15 @@

#define CONFIG_SYS_CONSOLE_IS_IN_ENV

+/* USB */
+#define CONFIG_CMD_USB
+#define CONFIG_USB_STORAGE
+#define CONFIG_USB_DWC3
+#define CONFIG_USB_DWC3_GADGET
+#define CONFIG_USB_DWC3_DUAL_ROLE
+#define CONFIG_USB_DWC3_OMAP
+#define CONFIG_USB_DWC3_HOST
+
/* Flash */
#define CONFIG_SYS_NO_FLASH

--
1.7.9.5