diff options
Diffstat (limited to 'roms/u-boot/board/Marvell/mvebu_armada-8k')
| -rw-r--r-- | roms/u-boot/board/Marvell/mvebu_armada-8k/MAINTAINERS | 19 | ||||
| -rw-r--r-- | roms/u-boot/board/Marvell/mvebu_armada-8k/Makefile | 5 | ||||
| -rw-r--r-- | roms/u-boot/board/Marvell/mvebu_armada-8k/board.c | 182 |
3 files changed, 206 insertions, 0 deletions
diff --git a/roms/u-boot/board/Marvell/mvebu_armada-8k/MAINTAINERS b/roms/u-boot/board/Marvell/mvebu_armada-8k/MAINTAINERS new file mode 100644 index 000000000..55e485faa --- /dev/null +++ b/roms/u-boot/board/Marvell/mvebu_armada-8k/MAINTAINERS @@ -0,0 +1,19 @@ +MVEBU_ARMADA_8K BOARD +M: Stefan Roese <sr@denx.de> +S: Maintained +F: board/Marvell/mvebu_armada-8k/ +F: include/configs/mvebu_armada-8k.h +F: configs/mvebu_db_armada8k_defconfig + + +MACCHIATOBin BOARD +M: Konstantin Porotchkin <kostap@marvell.com> +S: Maintained +F: configs/mvebu_mcbin-88f8040_defconfig + +Puzzle-M801 BOARD +M: Luka Kovacic <luka.kovacic@sartura.hr> +M: Luka Perkov <luka.perkov@sartura.hr> +S: Maintained +F: configs/mvebu_puzzle-m801-88f8040_defconfig +F: arch/arm/dts/armada-8040-puzzle-m801.dts diff --git a/roms/u-boot/board/Marvell/mvebu_armada-8k/Makefile b/roms/u-boot/board/Marvell/mvebu_armada-8k/Makefile new file mode 100644 index 000000000..27221557c --- /dev/null +++ b/roms/u-boot/board/Marvell/mvebu_armada-8k/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2016 Stefan Roese <sr@denx.de> + +obj-y := board.o diff --git a/roms/u-boot/board/Marvell/mvebu_armada-8k/board.c b/roms/u-boot/board/Marvell/mvebu_armada-8k/board.c new file mode 100644 index 000000000..7da5d9f96 --- /dev/null +++ b/roms/u-boot/board/Marvell/mvebu_armada-8k/board.c @@ -0,0 +1,182 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2016 Stefan Roese <sr@denx.de> + */ + +#include <common.h> +#include <dm.h> +#include <i2c.h> +#include <init.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/arch/cpu.h> +#include <asm/arch/soc.h> +#include <linux/delay.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Information specific to the DB-88F7040 eval board. We strive to use + * DT for such platform specfic configurations. At some point, this + * might be removed here and implemented via DT. + */ +/* 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)) + +/* + * Information specific to the iEi Puzzle-M801 board. + */ + +/* Internal configuration registers */ +#define CP1_CONF_REG_BASE 0xf4440000 +#define CONF_REG_MPP0 0x0 +#define CONF_REG_MPP1 0x4 +#define CONF_REG_MPP2 0x8 +#define CONF_REG_MPP3 0xC + +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]; + + if (of_machine_is_compatible("marvell,armada7040-db")) { + /* 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(fdt_addr_t base) +{ + struct udevice *dev; + int ret; + u8 buf[8]; + + if (of_machine_is_compatible("marvell,armada7040-db")) { + /* + * 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) +{ + /* Initialize some platform specific memory locations */ + if (of_machine_is_compatible("marvell,armada8040-puzzle-m801")) { + /* MPP setup */ + writel(0x00444444, CP1_CONF_REG_BASE + CONF_REG_MPP0); + writel(0x00000000, CP1_CONF_REG_BASE + CONF_REG_MPP1); + writel(0x00000000, CP1_CONF_REG_BASE + CONF_REG_MPP2); + writel(0x08888000, CP1_CONF_REG_BASE + CONF_REG_MPP3); + } + + 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; +} |