diff options
Diffstat (limited to 'board/Marvell/mvebu_db-88f7040/board.c')
| -rw-r--r-- | board/Marvell/mvebu_db-88f7040/board.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/board/Marvell/mvebu_db-88f7040/board.c b/board/Marvell/mvebu_db-88f7040/board.c deleted file mode 100644 index 48bd55c372..0000000000 --- a/board/Marvell/mvebu_db-88f7040/board.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * Copyright (C) 2016 Stefan Roese <sr@denx.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <i2c.h> -#include <asm/io.h> -#include <asm/arch/cpu.h> -#include <asm/arch/soc.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* IO expander I2C device */ -#define I2C_IO_EXP_ADDR 0x21 -#define I2C_IO_CFG_REG_0 0x6 -#define I2C_IO_DATA_OUT_REG_0 0x2 -/* VBus enable */ -#define I2C_IO_REG_0_USB_H0_OFF 0 -#define I2C_IO_REG_0_USB_H1_OFF 1 -#define I2C_IO_REG_VBUS ((1 << I2C_IO_REG_0_USB_H0_OFF) | \ - (1 << I2C_IO_REG_0_USB_H1_OFF)) -/* Current limit */ -#define I2C_IO_REG_0_USB_H0_CL 4 -#define I2C_IO_REG_0_USB_H1_CL 5 -#define I2C_IO_REG_CL ((1 << I2C_IO_REG_0_USB_H0_CL) | \ - (1 << I2C_IO_REG_0_USB_H1_CL)) - -static int usb_enabled = 0; - -/* Board specific xHCI dis-/enable code */ - -/* - * Set USB VBUS signals (via I2C IO expander/GPIO) as output and set - * output value as disabled - * - * Set USB Current Limit signals (via I2C IO expander/GPIO) as output - * and set output value as enabled - */ -int board_xhci_config(void) -{ - struct udevice *dev; - int ret; - u8 buf[8]; - - /* Configure IO exander PCA9555: 7bit address 0x21 */ - ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev); - if (ret) { - printf("Cannot find PCA9555: %d\n", ret); - return 0; - } - - /* - * Read configuration (direction) and set VBUS pin as output - * (reset pin = output) - */ - ret = dm_i2c_read(dev, I2C_IO_CFG_REG_0, buf, 1); - if (ret) { - printf("Failed to read IO expander value via I2C\n"); - return -EIO; - } - buf[0] &= ~I2C_IO_REG_VBUS; - buf[0] &= ~I2C_IO_REG_CL; - ret = dm_i2c_write(dev, I2C_IO_CFG_REG_0, buf, 1); - if (ret) { - printf("Failed to set IO expander via I2C\n"); - return -EIO; - } - - /* Read output value and configure it */ - ret = dm_i2c_read(dev, I2C_IO_DATA_OUT_REG_0, buf, 1); - if (ret) { - printf("Failed to read IO expander value via I2C\n"); - return -EIO; - } - buf[0] &= ~I2C_IO_REG_VBUS; - buf[0] |= I2C_IO_REG_CL; - ret = dm_i2c_write(dev, I2C_IO_DATA_OUT_REG_0, buf, 1); - if (ret) { - printf("Failed to set IO expander via I2C\n"); - return -EIO; - } - - mdelay(500); /* required delay to let output value settle */ - - return 0; -} - -int board_xhci_enable(void) -{ - struct udevice *dev; - int ret; - u8 buf[8]; - - /* - * This function enables all USB ports simultaniously, - * it only needs to get called once - */ - if (usb_enabled) - return 0; - - /* Configure IO exander PCA9555: 7bit address 0x21 */ - ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev); - if (ret) { - printf("Cannot find PCA9555: %d\n", ret); - return 0; - } - - /* Read VBUS output value */ - ret = dm_i2c_read(dev, I2C_IO_DATA_OUT_REG_0, buf, 1); - if (ret) { - printf("Failed to read IO expander value via I2C\n"); - return -EIO; - } - - /* Enable VBUS power: Set output value of VBUS pin as enabled */ - buf[0] |= I2C_IO_REG_VBUS; - ret = dm_i2c_write(dev, I2C_IO_DATA_OUT_REG_0, buf, 1); - if (ret) { - printf("Failed to set IO expander via I2C\n"); - return -EIO; - } - - mdelay(500); /* required delay to let output value settle */ - usb_enabled = 1; - - return 0; -} - -int board_early_init_f(void) -{ - /* Nothing to do (yet), perhaps later some pin-muxing etc */ - - return 0; -} - -int board_init(void) -{ - /* adress of boot parameters */ - gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; - - return 0; -} - -int board_late_init(void) -{ - /* Pre-configure the USB ports (overcurrent, VBus) */ - board_xhci_config(); - - return 0; -} |