* [U-Boot] [PATCH 1/3] iMX28: Add USB and USB PHY register definitions
2011-10-24 11:21 [U-Boot] [PATCH 0/3] M28 USB Support Marek Vasut
@ 2011-10-24 11:21 ` Marek Vasut
2011-10-24 11:21 ` [U-Boot] [PATCH 2/3] iMX28: Add USB HOST driver Marek Vasut
2011-10-24 11:21 ` [U-Boot] [PATCH 3/3] M28EVK: Enable USB HOST support Marek Vasut
2 siblings, 0 replies; 4+ messages in thread
From: Marek Vasut @ 2011-10-24 11:21 UTC (permalink / raw)
To: u-boot
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Remy Bohmer <linux@bohmer.net>
---
arch/arm/include/asm/arch-mx28/regs-usb.h | 178 ++++++++++++++++++++++++++
arch/arm/include/asm/arch-mx28/regs-usbphy.h | 151 ++++++++++++++++++++++
2 files changed, 329 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/include/asm/arch-mx28/regs-usb.h
create mode 100644 arch/arm/include/asm/arch-mx28/regs-usbphy.h
diff --git a/arch/arm/include/asm/arch-mx28/regs-usb.h b/arch/arm/include/asm/arch-mx28/regs-usb.h
new file mode 100644
index 0000000..ea61de8
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-usb.h
@@ -0,0 +1,178 @@
+/*
+ * Freescale i.MX28 USB OTG Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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 __REGS_USB_H__
+#define __REGS_USB_H__
+
+struct mx28_usb_regs {
+ uint32_t hw_usbctrl_id; /* 0x000 */
+ uint32_t hw_usbctrl_hwgeneral; /* 0x004 */
+ uint32_t hw_usbctrl_hwhost; /* 0x008 */
+ uint32_t hw_usbctrl_hwdevice; /* 0x00c */
+ uint32_t hw_usbctrl_hwtxbuf; /* 0x010 */
+ uint32_t hw_usbctrl_hwrxbuf; /* 0x014 */
+
+ uint32_t reserved1[26];
+
+ uint32_t hw_usbctrl_gptimer0ld; /* 0x080 */
+ uint32_t hw_usbctrl_gptimer0ctrl; /* 0x084 */
+ uint32_t hw_usbctrl_gptimer1ld; /* 0x088 */
+ uint32_t hw_usbctrl_gptimer1ctrl; /* 0x08c */
+ uint32_t hw_usbctrl_sbuscfg; /* 0x090 */
+
+ uint32_t reserved2[27];
+
+ uint32_t hw_usbctrl_caplength; /* 0x100 */
+ uint32_t hw_usbctrl_hcsparams; /* 0x104 */
+ uint32_t hw_usbctrl_hccparams; /* 0x108 */
+
+ uint32_t reserved3[5];
+
+ uint32_t hw_usbctrl_dciversion; /* 0x120 */
+ uint32_t hw_usbctrl_dccparams; /* 0x124 */
+
+ uint32_t reserved4[6];
+
+ uint32_t hw_usbctrl_usbcmd; /* 0x140 */
+ uint32_t hw_usbctrl_usbsts; /* 0x144 */
+ uint32_t hw_usbctrl_usbintr; /* 0x148 */
+ uint32_t hw_usbctrl_frindex; /* 0x14c */
+
+ uint32_t reserved5;
+
+ union {
+ uint32_t hw_usbctrl_periodiclistbase; /* 0x154 */
+ uint32_t hw_usbctrl_deviceaddr; /* 0x154 */
+ };
+ union {
+ uint32_t hw_usbctrl_asynclistaddr; /* 0x158 */
+ uint32_t hw_usbctrl_endpointlistaddr; /* 0x158 */
+ };
+
+ uint32_t hw_usbctrl_ttctrl; /* 0x15c */
+ uint32_t hw_usbctrl_burstsize; /* 0x160 */
+ uint32_t hw_usbctrl_txfilltuning; /* 0x164 */
+
+ uint32_t reserved6;
+
+ uint32_t hw_usbctrl_ic_usb; /* 0x16c */
+ uint32_t hw_usbctrl_ulpi; /* 0x170 */
+
+ uint32_t reserved7;
+
+ uint32_t hw_usbctrl_endptnak; /* 0x178 */
+ uint32_t hw_usbctrl_endptnaken; /* 0x17c */
+
+ uint32_t reserved8;
+
+ uint32_t hw_usbctrl_portsc1; /* 0x184 */
+
+ uint32_t reserved9[7];
+
+ uint32_t hw_usbctrl_otgsc; /* 0x1a4 */
+ uint32_t hw_usbctrl_usbmode; /* 0x1a8 */
+ uint32_t hw_usbctrl_endptsetupstat; /* 0x1ac */
+ uint32_t hw_usbctrl_endptprime; /* 0x1b0 */
+ uint32_t hw_usbctrl_endptflush; /* 0x1b4 */
+ uint32_t hw_usbctrl_endptstat; /* 0x1b8 */
+ uint32_t hw_usbctrl_endptcomplete; /* 0x1bc */
+ uint32_t hw_usbctrl_endptctrl0; /* 0x1c0 */
+ uint32_t hw_usbctrl_endptctrl1; /* 0x1c4 */
+ uint32_t hw_usbctrl_endptctrl2; /* 0x1c8 */
+ uint32_t hw_usbctrl_endptctrl3; /* 0x1cc */
+ uint32_t hw_usbctrl_endptctrl4; /* 0x1d0 */
+ uint32_t hw_usbctrl_endptctrl5; /* 0x1d4 */
+ uint32_t hw_usbctrl_endptctrl6; /* 0x1d8 */
+ uint32_t hw_usbctrl_endptctrl7; /* 0x1dc */
+};
+
+#define CLKCTRL_PLL0CTRL0_LFR_SEL_MASK (0x3 << 28)
+
+#define HW_USBCTRL_ID_CIVERSION_OFFSET 29
+#define HW_USBCTRL_ID_CIVERSION_MASK (0x7 << 29)
+#define HW_USBCTRL_ID_VERSION_OFFSET 25
+#define HW_USBCTRL_ID_VERSION_MASK (0xf << 25)
+#define HW_USBCTRL_ID_REVISION_OFFSET 21
+#define HW_USBCTRL_ID_REVISION_MASK (0xf << 21)
+#define HW_USBCTRL_ID_TAG_OFFSET 16
+#define HW_USBCTRL_ID_TAG_MASK (0x1f << 16)
+#define HW_USBCTRL_ID_NID_OFFSET 8
+#define HW_USBCTRL_ID_NID_MASK (0x3f << 8)
+#define HW_USBCTRL_ID_ID_OFFSET 0
+#define HW_USBCTRL_ID_ID_MASK (0x3f << 0)
+
+#define HW_USBCTRL_HWGENERAL_SM_OFFSET 9
+#define HW_USBCTRL_HWGENERAL_SM_MASK (0x3 << 9)
+#define HW_USBCTRL_HWGENERAL_PHYM_OFFSET 6
+#define HW_USBCTRL_HWGENERAL_PHYM_MASK (0x7 << 6)
+#define HW_USBCTRL_HWGENERAL_PHYW_OFFSET 4
+#define HW_USBCTRL_HWGENERAL_PHYW_MASK (0x3 << 4)
+#define HW_USBCTRL_HWGENERAL_BWT (1 << 3)
+#define HW_USBCTRL_HWGENERAL_CLKC_OFFSET 1
+#define HW_USBCTRL_HWGENERAL_CLKC_MASK (0x3 << 1)
+#define HW_USBCTRL_HWGENERAL_RT (1 << 0)
+
+#define HW_USBCTRL_HWHOST_TTPER_OFFSET 24
+#define HW_USBCTRL_HWHOST_TTPER_MASK (0xff << 24)
+#define HW_USBCTRL_HWHOST_TTASY_OFFSET 16
+#define HW_USBCTRL_HWHOST_TTASY_MASK (0xff << 19)
+#define HW_USBCTRL_HWHOST_NPORT_OFFSET 1
+#define HW_USBCTRL_HWHOST_NPORT_MASK (0x7 << 1)
+#define HW_USBCTRL_HWHOST_HC (1 << 0)
+
+#define HW_USBCTRL_HWDEVICE_DEVEP_OFFSET 1
+#define HW_USBCTRL_HWDEVICE_DEVEP_MASK (0x1f << 1)
+#define HW_USBCTRL_HWDEVICE_DC (1 << 0)
+
+#define HW_USBCTRL_HWTXBUF_TXLCR (1 << 31)
+#define HW_USBCTRL_HWTXBUF_TXCHANADD_OFFSET 16
+#define HW_USBCTRL_HWTXBUF_TXCHANADD_MASK (0xff << 16)
+#define HW_USBCTRL_HWTXBUF_TXADD_OFFSET 8
+#define HW_USBCTRL_HWTXBUF_TXADD_MASK (0xff << 8)
+#define HW_USBCTRL_HWTXBUF_TXBURST_OFFSET 0
+#define HW_USBCTRL_HWTXBUF_TXBURST_MASK 0xff
+
+#define HW_USBCTRL_HWRXBUF_RXADD_OFFSET 8
+#define HW_USBCTRL_HWRXBUF_RXADD_MASK (0xff << 8)
+#define HW_USBCTRL_HWRXBUF_RXBURST_OFFSET 0
+#define HW_USBCTRL_HWRXBUF_RXBURST_MASK 0xff
+
+#define HW_USBCTRL_GPTIMERLD_GPTLD_OFFSET 0
+#define HW_USBCTRL_GPTIMERLD_GPTLD_MASK 0xffffff
+
+#define HW_USBCTRL_GPTIMERCTRL_GPTRUN (1 << 31)
+#define HW_USBCTRL_GPTIMERCTRL_GPTRST (1 << 30)
+#define HW_USBCTRL_GPTIMERCTRL_GPTMODE (1 << 24)
+#define HW_USBCTRL_GPTIMERCTRL_GPTCNT_OFFSET 0
+#define HW_USBCTRL_GPTIMERCTRL_GPTCNT_MASK 0xffffff
+
+#define HW_USBCTRL_SBUSCFG_AHBBURST_OFFSET 0
+#define HW_USBCTRL_SBUSCFG_AHBBURST_MASK 0x7
+#define HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR 0x0
+#define HW_USBCTRL_SBUSCFG_AHBBURST_S_INCR4 0x1
+#define HW_USBCTRL_SBUSCFG_AHBBURST_S_INCR8 0x2
+#define HW_USBCTRL_SBUSCFG_AHBBURST_S_INCR16 0x3
+#define HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR4 0x5
+#define HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR8 0x6
+#define HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR16 0x7
+
+#endif /* __REGS_USB_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-usbphy.h b/arch/arm/include/asm/arch-mx28/regs-usbphy.h
new file mode 100644
index 0000000..e823e19
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-usbphy.h
@@ -0,0 +1,151 @@
+/*
+ * Freescale i.MX28 USB PHY Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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 __REGS_USBPHY_H__
+#define __REGS_USBPHY_H__
+
+struct mx28_usbphy_regs {
+ mx28_reg(hw_usbphy_pwd)
+ mx28_reg(hw_usbphy_tx)
+ mx28_reg(hw_usbphy_rx)
+ mx28_reg(hw_usbphy_ctrl)
+ mx28_reg(hw_usbphy_status)
+ mx28_reg(hw_usbphy_debug)
+ mx28_reg(hw_usbphy_debug0_status)
+ mx28_reg(hw_usbphy_debug1)
+ mx28_reg(hw_usbphy_version)
+ mx28_reg(hw_usbphy_ip)
+};
+
+#define USBPHY_PWD_RXPWDRX (1 << 20)
+#define USBPHY_PWD_RXPWDDIFF (1 << 19)
+#define USBPHY_PWD_RXPWD1PT1 (1 << 18)
+#define USBPHY_PWD_RXPWDENV (1 << 17)
+#define USBPHY_PWD_TXPWDV2I (1 << 12)
+#define USBPHY_PWD_TXPWDIBIAS (1 << 11)
+#define USBPHY_PWD_TXPWDFS (1 << 10)
+
+#define USBPHY_TX_USBPHY_TX_EDGECTRL_OFFSET 26
+#define USBPHY_TX_USBPHY_TX_EDGECTRL_MASK (0x7 << 26)
+#define USBPHY_TX_USBPHY_TX_SYNC_INVERT (1 << 25)
+#define USBPHY_TX_USBPHY_TX_SYNC_MUX (1 << 24)
+#define USBPHY_TX_TXENCAL45DP (1 << 21)
+#define USBPHY_TX_TXCAL45DP_OFFSET 16
+#define USBPHY_TX_TXCAL45DP_MASK (0xf << 16)
+#define USBPHY_TX_TXENCAL45DM (1 << 13)
+#define USBPHY_TX_TXCAL45DM_OFFSET 8
+#define USBPHY_TX_TXCAL45DM_MASK (0xf << 8)
+#define USBPHY_TX_D_CAL_OFFSET 0
+#define USBPHY_TX_D_CAL_MASK 0xf
+
+#define USBPHY_RX_RXDBYPASS (1 << 22)
+#define USBPHY_RX_DISCONADJ_OFFSET 4
+#define USBPHY_RX_DISCONADJ_MASK (0x7 << 4)
+#define USBPHY_RX_ENVADJ_OFFSET 0
+#define USBPHY_RX_ENVADJ_MASK 0x7
+
+#define USBPHY_CTRL_SFTRST (1 << 31)
+#define USBPHY_CTRL_CLKGATE (1 << 30)
+#define USBPHY_CTRL_UTMI_SUSPENDM (1 << 29)
+#define USBPHY_CTRL_HOST_FORCE_LS_SE0 (1 << 28)
+#define USBPHY_CTRL_ENAUTOSET_USBCLKS (1 << 26)
+#define USBPHY_CTRL_ENAUTOCLR_USBCLKGATE (1 << 25)
+#define USBPHY_CTRL_FSDLL_RST_EN (1 << 24)
+#define USBPHY_CTRL_ENVBUSCHG_WKUP (1 << 23)
+#define USBPHY_CTRL_ENIDCHG_WKUP (1 << 22)
+#define USBPHY_CTRL_ENDPDMCHG_WKUP (1 << 21)
+#define USBPHY_CTRL_ENAUTOCLR_PHY_PWD (1 << 20)
+#define USBPHY_CTRL_ENAUTOCLR_CLKGATE (1 << 19)
+#define USBPHY_CTRL_ENAUTO_PWRON_PLL (1 << 18)
+#define USBPHY_CTRL_WAKEUP_IRQ (1 << 17)
+#define USBPHY_CTRL_ENIRQWAKEUP (1 << 16)
+#define USBPHY_CTRL_ENUTMILEVEL3 (1 << 15)
+#define USBPHY_CTRL_ENUTMILEVEL2 (1 << 14)
+#define USBPHY_CTRL_DATA_ON_LRADC (1 << 13)
+#define USBPHY_CTRL_DEVPLUGIN_IRQ (1 << 12)
+#define USBPHY_CTRL_ENIRQDEVPLUGIN (1 << 11)
+#define USBPHY_CTRL_RESUME_IRQ (1 << 10)
+#define USBPHY_CTRL_ENIRQRESUMEDETECT (1 << 9)
+#define USBPHY_CTRL_RESUMEIRQSTICKY (1 << 8)
+#define USBPHY_CTRL_ENOTGIDDETECT (1 << 7)
+#define USBPHY_CTRL_DEVPLUGIN_POLARITY (1 << 5)
+#define USBPHY_CTRL_ENDEVPLUGINDETECT (1 << 4)
+#define USBPHY_CTRL_HOSTDISCONDETECT_IRQ (1 << 3)
+#define USBPHY_CTRL_ENIRQHOSTDISCON (1 << 2)
+#define USBPHY_CTRL_ENHOSTDISCONDETECT (1 << 1)
+
+#define USBPHY_STATUS_RESUME_STATUS (1 << 10)
+#define USBPHY_STATUS_OTGID_STATUS (1 << 8)
+#define USBPHY_STATUS_DEVPLUGIN_STATUS (1 << 6)
+#define USBPHY_STATUS_HOSTDISCONDETECT_STATUS (1 << 3)
+
+#define USBPHY_DEBUG_CLKGATE (1 << 30)
+#define USBPHY_DEBUG_HOST_RESUME_DEBUG (1 << 29)
+#define USBPHY_DEBUG_SQUELCHRESETLENGTH_OFFSET 25
+#define USBPHY_DEBUG_SQUELCHRESETLENGTH_MASK (0xf << 25)
+#define USBPHY_DEBUG_ENSQUELCHRESET (1 << 24)
+#define USBPHY_DEBUG_SQUELCHRESETCOUNT_OFFSET 16
+#define USBPHY_DEBUG_SQUELCHRESETCOUNT_MASK (0x1f << 16)
+#define USBPHY_DEBUG_ENTX2RXCOUNT (1 << 12)
+#define USBPHY_DEBUG_TX2RXCOUNT_OFFSET 8
+#define USBPHY_DEBUG_TX2RXCOUNT_MASK (0xf << 8)
+#define USBPHY_DEBUG_ENHSTPULLDOWN_OFFSET 4
+#define USBPHY_DEBUG_ENHSTPULLDOWN_MASK (0x3 << 4)
+#define USBPHY_DEBUG_HSTPULLDOWN_OFFSET 2
+#define USBPHY_DEBUG_HSTPULLDOWN_MASK (0x3 << 2)
+#define USBPHY_DEBUG_DEBUG_INTERFACE_HOLD (1 << 1)
+#define USBPHY_DEBUG_OTGIDPIDLOCK (1 << 0)
+
+#define USBPHY_DEBUG0_STATUS_SQUELCH_COUNT_OFFSET 26
+#define USBPHY_DEBUG0_STATUS_SQUELCH_COUNT_MASK (0x3f << 26)
+#define USBPHY_DEBUG0_STATUS_UTMI_RXERROR_OFFSET 16
+#define USBPHY_DEBUG0_STATUS_UTMI_RXERROR_MASK (0x3ff << 16)
+#define USBPHY_DEBUG0_STATUS_LOOP_BACK_OFFSET 0
+#define USBPHY_DEBUG0_STATUS_LOOP_BACK_MASK 0xffff
+
+#define USBPHY_DEBUG1_ENTAILADJVD_OFFSET 13
+#define USBPHY_DEBUG1_ENTAILADJVD_MASK (0x3 << 13)
+#define USBPHY_DEBUG1_ENTX2TX (1 << 12)
+#define USBPHY_DEBUG1_DBG_ADDRESS_OFFSET 0
+#define USBPHY_DEBUG1_DBG_ADDRESS_MASK 0xf
+
+#define USBPHY_VERSION_MAJOR_MASK (0xff << 24)
+#define USBPHY_VERSION_MAJOR_OFFSET 24
+#define USBPHY_VERSION_MINOR_MASK (0xff << 16)
+#define USBPHY_VERSION_MINOR_OFFSET 16
+#define USBPHY_VERSION_STEP_MASK 0xffff
+#define USBPHY_VERSION_STEP_OFFSET 0
+
+#define USBPHY_IP_DIV_SEL_OFFSET 23
+#define USBPHY_IP_DIV_SEL_MASK (0x3 << 23)
+#define USBPHY_IP_LFR_SEL_OFFSET 21
+#define USBPHY_IP_LFR_SEL_MASK (0x3 << 21)
+#define USBPHY_IP_CP_SEL_OFFSET 19
+#define USBPHY_IP_CP_SEL_MASK (0x3 << 19)
+#define USBPHY_IP_TSTI_TX_DP (1 << 18)
+#define USBPHY_IP_TSTI_TX_DM (1 << 17)
+#define USBPHY_IP_ANALOG_TESTMODE (1 << 16)
+#define USBPHY_IP_EN_USB_CLKS (1 << 2)
+#define USBPHY_IP_PLL_LOCKED (1 << 1)
+#define USBPHY_IP_PLL_POWER (1 << 0)
+
+#endif /* __REGS_USBPHY_H__ */
--
1.7.6.3
^ permalink raw reply related [flat|nested] 4+ messages in thread* [U-Boot] [PATCH 2/3] iMX28: Add USB HOST driver
2011-10-24 11:21 [U-Boot] [PATCH 0/3] M28 USB Support Marek Vasut
2011-10-24 11:21 ` [U-Boot] [PATCH 1/3] iMX28: Add USB and USB PHY register definitions Marek Vasut
@ 2011-10-24 11:21 ` Marek Vasut
2011-10-24 11:21 ` [U-Boot] [PATCH 3/3] M28EVK: Enable USB HOST support Marek Vasut
2 siblings, 0 replies; 4+ messages in thread
From: Marek Vasut @ 2011-10-24 11:21 UTC (permalink / raw)
To: u-boot
This driver supports both EHCI ports on the i.MX28 CPU.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Remy Bohmer <linux@bohmer.net>
---
drivers/usb/host/Makefile | 1 +
drivers/usb/host/ehci-mxs.c | 154 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 155 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/ehci-mxs.c
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 51b2494..09abb75 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -41,6 +41,7 @@ else
COBJS-$(CONFIG_USB_EHCI_FSL) += ehci-fsl.o
endif
COBJS-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o
+COBJS-$(CONFIG_USB_EHCI_MXS) += ehci-mxs.o
COBJS-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o
COBJS-$(CONFIG_USB_EHCI_IXP4XX) += ehci-ixp.o
COBJS-$(CONFIG_USB_EHCI_KIRKWOOD) += ehci-kirkwood.o
diff --git a/drivers/usb/host/ehci-mxs.c b/drivers/usb/host/ehci-mxs.c
new file mode 100644
index 0000000..c795f23
--- /dev/null
+++ b/drivers/usb/host/ehci-mxs.c
@@ -0,0 +1,154 @@
+/*
+ * Freescale i.MX28 USB Host driver
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/regs-common.h>
+#include <asm/arch/regs-base.h>
+#include <asm/arch/regs-clkctrl.h>
+#include <asm/arch/regs-usb.h>
+#include <asm/arch/regs-usbphy.h>
+
+#include "ehci-core.h"
+#include "ehci.h"
+
+#if (CONFIG_EHCI_MXS_PORT != 0) && (CONFIG_EHCI_MXS_PORT != 1)
+#error "MXS EHCI: Invalid port selected!"
+#endif
+
+#ifndef CONFIG_EHCI_MXS_PORT
+#error "MXS EHCI: Please define correct port using CONFIG_EHCI_MXS_PORT!"
+#endif
+
+static struct ehci_mxs {
+ struct mx28_usb_regs *usb_regs;
+ struct mx28_usbphy_regs *phy_regs;
+} ehci_mxs;
+
+int mxs_ehci_get_port(struct ehci_mxs *mxs_usb, int port)
+{
+ uint32_t usb_base, phy_base;
+ switch (port) {
+ case 0:
+ usb_base = MXS_USBCTRL0_BASE;
+ phy_base = MXS_USBPHY0_BASE;
+ break;
+ case 1:
+ usb_base = MXS_USBCTRL1_BASE;
+ phy_base = MXS_USBPHY1_BASE;
+ break;
+ default:
+ printf("CONFIG_EHCI_MXS_PORT (port = %d)\n", port);
+ return -1;
+ }
+
+ mxs_usb->usb_regs = (struct mx28_usb_regs *)usb_base;
+ mxs_usb->phy_regs = (struct mx28_usbphy_regs *)phy_base;
+ return 0;
+}
+
+/* This DIGCTL register ungates clock to USB */
+#define HW_DIGCTL_CTRL 0x8001c000
+#define HW_DIGCTL_CTRL_USB0_CLKGATE (1 << 2)
+#define HW_DIGCTL_CTRL_USB1_CLKGATE (1 << 16)
+
+int ehci_hcd_init(void)
+{
+
+ int ret;
+ uint32_t usb_base, cap_base;
+ struct mx28_register *digctl_ctrl =
+ (struct mx28_register *)HW_DIGCTL_CTRL;
+ struct mx28_clkctrl_regs *clkctrl_regs =
+ (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+
+ ret = mxs_ehci_get_port(&ehci_mxs, CONFIG_EHCI_MXS_PORT);
+ if (ret)
+ return ret;
+
+ /* Reset the PHY block */
+ writel(USBPHY_CTRL_SFTRST, &ehci_mxs.phy_regs->hw_usbphy_ctrl_set);
+ udelay(10);
+ writel(USBPHY_CTRL_SFTRST | USBPHY_CTRL_CLKGATE,
+ &ehci_mxs.phy_regs->hw_usbphy_ctrl_clr);
+
+ /* Enable USB clock */
+ writel(CLKCTRL_PLL0CTRL0_EN_USB_CLKS | CLKCTRL_PLL0CTRL0_POWER,
+ &clkctrl_regs->hw_clkctrl_pll0ctrl0_set);
+ writel(CLKCTRL_PLL1CTRL0_EN_USB_CLKS | CLKCTRL_PLL1CTRL0_POWER,
+ &clkctrl_regs->hw_clkctrl_pll1ctrl0_set);
+
+ writel(HW_DIGCTL_CTRL_USB0_CLKGATE | HW_DIGCTL_CTRL_USB1_CLKGATE,
+ &digctl_ctrl->reg_clr);
+
+ /* Start USB PHY */
+ writel(0, &ehci_mxs.phy_regs->hw_usbphy_pwd);
+
+ /* Enable UTMI+ Level 2 and Level 3 compatibility */
+ writel(USBPHY_CTRL_ENUTMILEVEL3 | USBPHY_CTRL_ENUTMILEVEL2 | 1,
+ &ehci_mxs.phy_regs->hw_usbphy_ctrl_set);
+
+ usb_base = ((uint32_t)ehci_mxs.usb_regs) + 0x100;
+ hccr = (struct ehci_hccr *)usb_base;
+
+ cap_base = ehci_readl(&hccr->cr_capbase);
+ hcor = (struct ehci_hcor *)(usb_base + HC_LENGTH(cap_base));
+
+ return 0;
+}
+
+int ehci_hcd_stop(void)
+{
+ int ret;
+ uint32_t tmp;
+ struct mx28_register *digctl_ctrl =
+ (struct mx28_register *)HW_DIGCTL_CTRL;
+ struct mx28_clkctrl_regs *clkctrl_regs =
+ (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+
+ ret = mxs_ehci_get_port(&ehci_mxs, CONFIG_EHCI_MXS_PORT);
+ if (ret)
+ return ret;
+
+ /* Stop the USB port */
+ tmp = ehci_readl(&hcor->or_usbcmd);
+ tmp &= ~CMD_RUN;
+ ehci_writel(tmp, &hcor->or_usbcmd);
+
+ /* Disable the PHY */
+ tmp = USBPHY_PWD_RXPWDRX | USBPHY_PWD_RXPWDDIFF |
+ USBPHY_PWD_RXPWD1PT1 | USBPHY_PWD_RXPWDENV |
+ USBPHY_PWD_TXPWDV2I | USBPHY_PWD_TXPWDIBIAS |
+ USBPHY_PWD_TXPWDFS;
+ writel(tmp, &ehci_mxs.phy_regs->hw_usbphy_pwd);
+
+ /* Disable USB clock */
+ writel(CLKCTRL_PLL0CTRL0_EN_USB_CLKS,
+ &clkctrl_regs->hw_clkctrl_pll0ctrl0_clr);
+ writel(CLKCTRL_PLL1CTRL0_EN_USB_CLKS,
+ &clkctrl_regs->hw_clkctrl_pll1ctrl0_clr);
+
+ /* Gate off the USB clock */
+ writel(HW_DIGCTL_CTRL_USB0_CLKGATE | HW_DIGCTL_CTRL_USB1_CLKGATE,
+ &digctl_ctrl->reg_set);
+
+ return 0;
+}
--
1.7.6.3
^ permalink raw reply related [flat|nested] 4+ messages in thread* [U-Boot] [PATCH 3/3] M28EVK: Enable USB HOST support
2011-10-24 11:21 [U-Boot] [PATCH 0/3] M28 USB Support Marek Vasut
2011-10-24 11:21 ` [U-Boot] [PATCH 1/3] iMX28: Add USB and USB PHY register definitions Marek Vasut
2011-10-24 11:21 ` [U-Boot] [PATCH 2/3] iMX28: Add USB HOST driver Marek Vasut
@ 2011-10-24 11:21 ` Marek Vasut
2 siblings, 0 replies; 4+ messages in thread
From: Marek Vasut @ 2011-10-24 11:21 UTC (permalink / raw)
To: u-boot
This enables the second port, aka. the port with the USB connector on the
M28EVK.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Remy Bohmer <linux@bohmer.net>
---
board/denx/m28evk/m28evk.c | 7 +++++++
include/configs/m28evk.h | 12 ++++++++++++
2 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/board/denx/m28evk/m28evk.c b/board/denx/m28evk/m28evk.c
index 168ceeb..8cf3dc9 100644
--- a/board/denx/m28evk/m28evk.c
+++ b/board/denx/m28evk/m28evk.c
@@ -52,6 +52,13 @@ int board_early_init_f(void)
/* SSP2 clock at 96MHz */
mx28_set_sspclk(MXC_SSPCLK2, 96000, 0);
+#ifdef CONFIG_CMD_USB
+ mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT);
+ mxs_iomux_setup_pad(MX28_PAD_AUART3_TX__GPIO_3_13 |
+ MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP);
+ gpio_direction_output(MX28_PAD_AUART3_TX__GPIO_3_13, 0);
+#endif
+
return 0;
}
diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
index c8b0cf5..52dcd4a 100644
--- a/include/configs/m28evk.h
+++ b/include/configs/m28evk.h
@@ -75,6 +75,7 @@
#define CONFIG_CMD_SETEXPR
#define CONFIG_CMD_SF
#define CONFIG_CMD_SPI
+#define CONFIG_CMD_USB
/*
* Memory configurations
@@ -218,6 +219,17 @@
#endif
/*
+ * USB
+ */
+#ifdef CONFIG_CMD_USB
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_MXS
+#define CONFIG_EHCI_MXS_PORT 1
+#define CONFIG_EHCI_IS_TDI
+#define CONFIG_USB_STORAGE
+#endif
+
+/*
* SPI
*/
#ifdef CONFIG_CMD_SPI
--
1.7.6.3
^ permalink raw reply related [flat|nested] 4+ messages in thread