[U-Boot] [PATCH v4 2/7] ARM: OMAP5: USB: Add OMAP5 common USB EHCI information
Dan Murphy
dmurphy at ti.com
Thu Aug 1 21:05:57 CEST 2013
* Enable the OMAP5 EHCI host clocks
* Add OMAP5 EHCI register definitions
* Add OMAP5 ES2 host revision
Signed-off-by: Dan Murphy <dmurphy at ti.com>
---
v3 - Updated per comments - http://patchwork.ozlabs.org/patch/258230/
v4 - Updated per comments added the CONFIG option for PHY3 GPIO - http://patchwork.ozlabs.org/patch/259752/
arch/arm/include/asm/arch-omap5/clock.h | 17 ++++++++++++
arch/arm/include/asm/arch-omap5/ehci.h | 43 +++++++++++++++++++++++++++++++
arch/arm/include/asm/ehci-omap.h | 2 ++
drivers/usb/host/ehci-omap.c | 26 +++++++++++++++++--
4 files changed, 86 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/include/asm/arch-omap5/ehci.h
diff --git a/arch/arm/include/asm/arch-omap5/clock.h b/arch/arm/include/asm/arch-omap5/clock.h
index 3adfc09..9a2166c 100644
--- a/arch/arm/include/asm/arch-omap5/clock.h
+++ b/arch/arm/include/asm/arch-omap5/clock.h
@@ -149,6 +149,23 @@
/* CM_L3INIT_USBPHY_CLKCTRL */
#define USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK 8
+/* CM_L3INIT_USB_HOST_HS_CLKCTRL */
+#define OPTFCLKEN_FUNC48M_CLK (1 << 15)
+#define OPTFCLKEN_HSIC480M_P2_CLK (1 << 14)
+#define OPTFCLKEN_HSIC480M_P1_CLK (1 << 13)
+#define OPTFCLKEN_HSIC60M_P2_CLK (1 << 12)
+#define OPTFCLKEN_HSIC60M_P1_CLK (1 << 11)
+#define OPTFCLKEN_UTMI_P3_CLK (1 << 10)
+#define OPTFCLKEN_UTMI_P2_CLK (1 << 9)
+#define OPTFCLKEN_UTMI_P1_CLK (1 << 8)
+#define OPTFCLKEN_HSIC480M_P3_CLK (1 << 7)
+#define OPTFCLKEN_HSIC60M_P3_CLK (1 << 6)
+
+/* CM_L3INIT_USB_TLL_HS_CLKCTRL */
+#define OPTFCLKEN_USB_CH0_CLK_ENABLE (1 << 8)
+#define OPTFCLKEN_USB_CH1_CLK_ENABLE (1 << 9)
+#define OPTFCLKEN_USB_CH2_CLK_ENABLE (1 << 10)
+
/* 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/arch-omap5/ehci.h b/arch/arm/include/asm/arch-omap5/ehci.h
new file mode 100644
index 0000000..3921e4a
--- /dev/null
+++ b/arch/arm/include/asm/arch-omap5/ehci.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com*
+ * Author: Govindraj R <govindraj.raja at ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _EHCI_H
+#define _EHCI_H
+
+#define OMAP_EHCI_BASE (OMAP54XX_L4_CORE_BASE + 0x64C00)
+#define OMAP_UHH_BASE (OMAP54XX_L4_CORE_BASE + 0x64000)
+#define OMAP_USBTLL_BASE (OMAP54XX_L4_CORE_BASE + 0x62000)
+
+/* TLL Register Set */
+#define OMAP_USBTLL_SYSCONFIG_SIDLEMODE (1 << 3)
+#define OMAP_USBTLL_SYSCONFIG_ENAWAKEUP (1 << 2)
+#define OMAP_USBTLL_SYSCONFIG_SOFTRESET (1 << 1)
+#define OMAP_USBTLL_SYSCONFIG_CACTIVITY (1 << 8)
+#define OMAP_USBTLL_SYSSTATUS_RESETDONE 1
+
+#define OMAP_UHH_SYSCONFIG_SOFTRESET 1
+#define OMAP_UHH_SYSSTATUS_EHCI_RESETDONE (1 << 2)
+#define OMAP_UHH_SYSCONFIG_NOIDLE (1 << 2)
+#define OMAP_UHH_SYSCONFIG_NOSTDBY (1 << 4)
+
+#define OMAP_UHH_SYSCONFIG_VAL (OMAP_UHH_SYSCONFIG_NOIDLE | \
+ OMAP_UHH_SYSCONFIG_NOSTDBY)
+
+#endif /* _EHCI_H */
diff --git a/arch/arm/include/asm/ehci-omap.h b/arch/arm/include/asm/ehci-omap.h
index 77e8170..ac83a53 100644
--- a/arch/arm/include/asm/ehci-omap.h
+++ b/arch/arm/include/asm/ehci-omap.h
@@ -42,6 +42,7 @@ enum usbhs_omap_port_mode {
/* Values of UHH_REVISION - Note: these are not given in the TRM */
#define OMAP_USBHS_REV1 0x00000010 /* OMAP3 */
#define OMAP_USBHS_REV2 0x50700100 /* OMAP4 */
+#define OMAP_USBHS_REV2_1 0x50700101 /* OMAP5 */
/* UHH Register Set */
#define OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN (1 << 2)
@@ -60,6 +61,7 @@ enum usbhs_omap_port_mode {
#define OMAP_P2_MODE_CLEAR (3 << 18)
#define OMAP_P2_MODE_TLL (1 << 18)
#define OMAP_P2_MODE_HSIC (3 << 18)
+#define OMAP_P3_MODE_CLEAR (3 << 20)
#define OMAP_P3_MODE_HSIC (3 << 20)
/* EHCI Register Set */
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index a47e078..1ab8edc 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -93,7 +93,8 @@ inline int __board_usb_init(void)
int board_usb_init(void) __attribute__((weak, alias("__board_usb_init")));
#if defined(CONFIG_OMAP_EHCI_PHY1_RESET_GPIO) || \
- defined(CONFIG_OMAP_EHCI_PHY2_RESET_GPIO)
+ defined(CONFIG_OMAP_EHCI_PHY2_RESET_GPIO) || \
+ defined(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO)
/* controls PHY(s) reset signal(s) */
static inline void omap_ehci_phy_reset(int on, int delay)
{
@@ -112,6 +113,10 @@ static inline void omap_ehci_phy_reset(int on, int delay)
gpio_request(CONFIG_OMAP_EHCI_PHY2_RESET_GPIO, "USB PHY2 reset");
gpio_direction_output(CONFIG_OMAP_EHCI_PHY2_RESET_GPIO, !on);
#endif
+#ifdef CONFIG_OMAP_EHCI_PHY3_RESET_GPIO
+ gpio_request(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, "USB PHY3 reset");
+ gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, !on);
+#endif
/* Hold the PHY in RESET for enough time till DIR is high */
/* Refer: ISSUE1 */
@@ -195,10 +200,27 @@ int omap_ehci_hcd_init(struct omap_usbhs_board_data *usbhs_pdata,
else
setbits_le32(®, OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS);
} else if (rev == OMAP_USBHS_REV2) {
+
clrsetbits_le32(®, (OMAP_P1_MODE_CLEAR | OMAP_P2_MODE_CLEAR),
OMAP4_UHH_HOSTCONFIG_APP_START_CLK);
- /* Clear port mode fields for PHY mode*/
+ /* Clear port mode fields for PHY mode */
+
+ if (is_ehci_hsic_mode(usbhs_pdata->port_mode[0]))
+ setbits_le32(®, OMAP_P1_MODE_HSIC);
+
+ if (is_ehci_hsic_mode(usbhs_pdata->port_mode[1]))
+ setbits_le32(®, OMAP_P2_MODE_HSIC);
+
+ } else if (rev == OMAP_USBHS_REV2_1) {
+
+ clrsetbits_le32(®,
+ (OMAP_P1_MODE_CLEAR |
+ OMAP_P2_MODE_CLEAR |
+ OMAP_P3_MODE_CLEAR),
+ OMAP4_UHH_HOSTCONFIG_APP_START_CLK);
+
+ /* Clear port mode fields for PHY mode */
if (is_ehci_hsic_mode(usbhs_pdata->port_mode[0]))
setbits_le32(®, OMAP_P1_MODE_HSIC);
--
1.7.9.5
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