mirror of
https://github.com/Fishwaldo/OBLFR.git
synced 2025-03-15 19:31:28 +00:00
USB PHY power up code (#9)
* USB PHY power up code * Quick flag to force host or device configuration. Move to a Kconfig var later * Move usb code to mailbox component * Make USB setup api more consistent with other peripherals * Just update the sdkconfig.default Until USB lands in the buildroot/yocto images, keep this by default disabled. --------- Co-authored-by: Justin Hammond <justin@dynam.ac>
This commit is contained in:
Grant Olson
GitHub
parent
5bdc52f655
commit
92bde04ef7
6 changed files with 219 additions and 3 deletions
|
|
@ -1,3 +1,3 @@
|
|||
CONFIG_COMPONENT_MAILBOX=y
|
||||
CONFIG_COMPONENT_MAILBOX_IRQFWD_SDH=y
|
||||
CONFIG_COMPONENT_MAILBOX_IRQFWD_GPIO=y
|
||||
CONFIG_COMPONENT_MAILBOX_IRQFWD_GPIO=y
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
sdk_generate_library(oblfr_mailbox)
|
||||
sdk_add_include_directories(include)
|
||||
sdk_library_add_sources(${CMAKE_CURRENT_SOURCE_DIR}/src/oblfr_mailbox.c)
|
||||
sdk_library_add_sources(${CMAKE_CURRENT_SOURCE_DIR}/src/oblfr_mailbox.c ${CMAKE_CURRENT_SOURCE_DIR}/src/oblfr_usb_peripheral.c )
|
||||
|
||||
|
|
|
|||
|
|
@ -27,6 +27,14 @@ config COMPONENT_MAILBOX_IRQFWD_USB
|
|||
help
|
||||
Curently disabled as USB is not working
|
||||
|
||||
config COMPONENT_MAILBOX_USB_HOST
|
||||
depends on COMPONENT_MAILBOX_IRQFWD_USB
|
||||
bool "Set USB to HOST mode"
|
||||
default n
|
||||
help
|
||||
By default USB operates in peripheral mode. Set this to use the
|
||||
USB adapter as a host device.
|
||||
|
||||
config COMPONENT_MAILBOX_IRQFWD_GPIO
|
||||
bool "Enable IRQ forwarding for GPIO"
|
||||
default y
|
||||
|
|
|
|||
86
components/mailbox/include/oblfr_usb_peripheral.h
Normal file
86
components/mailbox/include/oblfr_usb_peripheral.h
Normal file
|
|
@ -0,0 +1,86 @@
|
|||
// Portions Copyright () 2023 OpenBuffalo
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file usb_v2_reg.h
|
||||
* @version V1.0
|
||||
* @date 2022-08-15
|
||||
* @brief This file is the description of.IP register
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* <h2><center>© COPYRIGHT(c) 2020 Bouffalo Lab</center></h2>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
* 1. Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of Bouffalo Lab nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
#ifndef __OBLFR_USBPHY_H__
|
||||
|
||||
#include <stdint.h>
|
||||
#include "oblfr_common.h"
|
||||
|
||||
oblfr_err_t setup_usb_peripheral(void);
|
||||
|
||||
// SUBSYSTEMS
|
||||
#define BLFB_USB_BASE ((uint32_t)0x20072000)
|
||||
#define BFLB_PDS_BASE ((uint32_t)0x2000e000)
|
||||
|
||||
// PDS REGISTERS
|
||||
#define PDS_USB_CTL_OFFSET (0x500) /* usb_ctl */
|
||||
#define PDS_USB_PHY_CTRL_OFFSET (0x504) /* usb_phy_ctrl */
|
||||
|
||||
// PDS REGISTER VALUES
|
||||
|
||||
/* 0x500 : usb_ctl */
|
||||
#define PDS_REG_USB_SW_RST_N (1 << 0U)
|
||||
#define PDS_REG_USB_EXT_SUSP_N (1 << 1U)
|
||||
#define PDS_REG_USB_WAKEUP (1 << 2U)
|
||||
#define PDS_REG_USB_L1_WAKEUP (1 << 3U)
|
||||
#define PDS_REG_USB_DRVBUS_POL (1 << 4U)
|
||||
#define PDS_REG_USB_IDDIG (1 << 5U)
|
||||
|
||||
/* 0x504 : usb_phy_ctrl */
|
||||
#define PDS_REG_USB_PHY_PONRST (1 << 0U)
|
||||
#define PDS_REG_USB_PHY_OSCOUTEN (1 << 1U)
|
||||
#define PDS_REG_USB_PHY_XTLSEL_SHIFT (2U)
|
||||
#define PDS_REG_USB_PHY_XTLSEL_MASK (0x3 << PDS_REG_USB_PHY_XTLSEL_SHIFT)
|
||||
#define PDS_REG_USB_PHY_XTLSEL_MASK (0x3 << PDS_REG_USB_PHY_XTLSEL_SHIFT)
|
||||
#define PDS_REG_USB_PHY_OUTCLKSEL (1 << 4U)
|
||||
#define PDS_REG_USB_PHY_PLLALIV (1 << 5U)
|
||||
#define PDS_REG_PU_USB20_PSW (1 << 6U)
|
||||
|
||||
|
||||
// USB REGS
|
||||
|
||||
#define USB_GLB_INT_OFFSET (0xC4) /* GLB_INT */
|
||||
|
||||
|
||||
/* 0xC4 : GLB_INT */
|
||||
#define USB_MDEV_INT (1 << 0U)
|
||||
#define USB_MOTG_INT (1 << 1U)
|
||||
#define USB_MHC_INT (1 << 2U)
|
||||
#define USB_POLARITY (1 << 3U)
|
||||
|
||||
|
||||
#endif
|
||||
|
|
@ -14,6 +14,7 @@
|
|||
#endif
|
||||
|
||||
#include "oblfr_mailbox.h"
|
||||
#include "oblfr_usb_peripheral.h"
|
||||
#define DBG_TAG "MBOX"
|
||||
#include "log.h"
|
||||
|
||||
|
|
@ -415,6 +416,13 @@ oblfr_err_t oblfr_mailbox_init()
|
|||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_COMPONENT_MAILBOX_IRQFWD_USB
|
||||
if (setup_usb_peripheral() != SUCCESS) {
|
||||
LOG_E("Failed to setup USB peripheral\r\n");
|
||||
return OBLFR_ERR_ERROR;
|
||||
}
|
||||
#endif
|
||||
|
||||
return OBLFR_OK;
|
||||
}
|
||||
|
||||
|
|
@ -443,4 +451,3 @@ oblfr_err_t oblfr_mailbox_dump()
|
|||
oblfr_mailbox_signal_unlock(false);
|
||||
return OBLFR_OK;
|
||||
}
|
||||
|
||||
|
|
|
|||
115
components/mailbox/src/oblfr_usb_peripheral.c
Normal file
115
components/mailbox/src/oblfr_usb_peripheral.c
Normal file
|
|
@ -0,0 +1,115 @@
|
|||
//
|
||||
// This is the bare bones code to power up the USB subsystem so that
|
||||
// it can be used once the system is booted.
|
||||
//
|
||||
// All code was taken from the bl_mcu_sdk with adaptations, primarily
|
||||
// from the file:
|
||||
//
|
||||
// drivers/lhal/src/bflb_usb_v2.c
|
||||
//
|
||||
|
||||
// Portions Copyright (c) 2023 OpenBuffalo
|
||||
|
||||
/**
|
||||
* @brief
|
||||
*
|
||||
* Copyright (c) 2021 Bouffalolab team
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <arch/risc-v/riscv_arch.h>
|
||||
#include <hardware/usb_v2_reg.h>
|
||||
#include <board.h>
|
||||
#include <bflb_mtimer.h>
|
||||
#include "oblfr_usb_peripheral.h"
|
||||
#define DBG_TAG "USB"
|
||||
#include "log.h"
|
||||
|
||||
// Enable USB A mode instead of B
|
||||
#define USB_HOST
|
||||
|
||||
oblfr_err_t setup_usb_peripheral(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
/* USB_PHY_CTRL[3:2] reg_usb_phy_xtlsel=0 */
|
||||
/* 2000e504 = 0x40; #100; USB_PHY_CTRL[6] reg_pu_usb20_psw=1 (VCC33A) */
|
||||
/* 2000e504 = 0x41; #500; USB_PHY_CTRL[0] reg_usb_phy_ponrst=1 */
|
||||
/* 2000e500 = 0x20; #100; USB_CTL[0] reg_usb_sw_rst_n=0 */
|
||||
/* 2000e500 = 0x22; #500; USB_CTL[1] reg_usb_ext_susp_n=1 */
|
||||
/* 2000e500 = 0x23; #100; USB_CTL[0] reg_usb_sw_rst_n=1 */
|
||||
/* #1.2ms; wait UCLK */
|
||||
/* wait(soc616_b0.usb_uclk); */
|
||||
|
||||
|
||||
LOG_I("Initializing USB...\r\n");
|
||||
|
||||
regval = getreg32(BFLB_PDS_BASE + PDS_USB_PHY_CTRL_OFFSET);
|
||||
regval &= ~PDS_REG_USB_PHY_XTLSEL_MASK;
|
||||
putreg32(regval, BFLB_PDS_BASE + PDS_USB_PHY_CTRL_OFFSET);
|
||||
|
||||
regval = getreg32(BFLB_PDS_BASE + PDS_USB_PHY_CTRL_OFFSET);
|
||||
regval |= PDS_REG_PU_USB20_PSW;
|
||||
putreg32(regval, BFLB_PDS_BASE + PDS_USB_PHY_CTRL_OFFSET);
|
||||
|
||||
|
||||
regval = getreg32(BFLB_PDS_BASE + PDS_USB_PHY_CTRL_OFFSET);
|
||||
regval |= PDS_REG_USB_PHY_PONRST;
|
||||
putreg32(regval, BFLB_PDS_BASE + PDS_USB_PHY_CTRL_OFFSET);
|
||||
|
||||
/* greater than 5T */
|
||||
bflb_mtimer_delay_us(1);
|
||||
|
||||
|
||||
regval = getreg32(BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
regval &= ~PDS_REG_USB_SW_RST_N;
|
||||
putreg32(regval, BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
|
||||
/* greater than 5T */
|
||||
bflb_mtimer_delay_us(1);
|
||||
|
||||
regval = getreg32(BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
regval |= PDS_REG_USB_EXT_SUSP_N;
|
||||
putreg32(regval, BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
|
||||
/* wait UCLK 1.2ms */
|
||||
bflb_mtimer_delay_ms(3);
|
||||
|
||||
regval = getreg32(BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
regval |= PDS_REG_USB_SW_RST_N;
|
||||
putreg32(regval, BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
|
||||
bflb_mtimer_delay_ms(2);
|
||||
|
||||
regval = getreg32(BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
|
||||
#ifdef CONFIG_COMPONENT_MAILBOX_USB_HOST
|
||||
LOG_I("USB Initialized in HOST mode\r\n");
|
||||
regval &= ~PDS_REG_USB_IDDIG;
|
||||
#else
|
||||
LOG_I("USB Initialized in DEVICE mode\r\n");
|
||||
regval |= PDS_REG_USB_IDDIG;
|
||||
#endif
|
||||
|
||||
putreg32(regval, BFLB_PDS_BASE + PDS_USB_CTL_OFFSET);
|
||||
|
||||
bflb_mtimer_delay_ms(10);
|
||||
|
||||
return OBLFR_OK;
|
||||
}
|
||||
|
||||
Loading…
Add table
Reference in a new issue