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https://github.com/smaeul/u-boot.git
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
154 lines
3.5 KiB
C
154 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 David Lechner <david@lechnology.com>
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*
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* Based on da850evm.c
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*
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* Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/
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*
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* Based on da830evm.c. Original Copyrights follow:
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*
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* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
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* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
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*/
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#include <common.h>
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#include <env.h>
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#include <i2c.h>
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#include <init.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/pinmux_defs.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <asm/arch/davinci_misc.h>
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#include <linux/errno.h>
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#include <hwconfig.h>
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#include <asm/mach-types.h>
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#include <asm/setup.h>
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#include <dm/uclass.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define EEPROM_I2C_ADDR 0x50
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#define EEPROM_REV_OFFSET 0x3F00
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#define EEPROM_BDADDR_OFFSET 0x3F06
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const struct pinmux_resource pinmuxes[] = {
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PINMUX_ITEM(spi0_pins_base),
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PINMUX_ITEM(spi0_pins_scs0),
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PINMUX_ITEM(uart1_pins_txrx),
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PINMUX_ITEM(i2c0_pins),
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PINMUX_ITEM(mmc0_pins),
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};
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const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
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const struct lpsc_resource lpsc[] = {
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{ DAVINCI_LPSC_SPI0 }, /* Serial Flash */
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{ DAVINCI_LPSC_UART1 }, /* console */
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{ DAVINCI_LPSC_MMC_SD },
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};
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const int lpsc_size = ARRAY_SIZE(lpsc);
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/*
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* The Bluetooth address serves as the board serial number.
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*/
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static void setup_serial_number(void)
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{
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struct udevice *idev, *ibus;
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int ret;
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u32 offset;
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char serial_number[13];
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u8 buf[6];
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u8 eeprom_rev;
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if (env_get("serial#"))
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return;
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ret = uclass_get_device_by_seq(UCLASS_I2C, 0, &ibus);
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if (ret)
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return;
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ret = dm_i2c_probe(ibus, EEPROM_I2C_ADDR, 0, &idev);
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if (ret)
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return;
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if (dm_i2c_read(idev, EEPROM_REV_OFFSET, buf, 2)) {
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printf("\nEEPROM revision read failed!\n");
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return;
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}
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/*
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* EEPROM rev 3 has Bluetooth address at EEPROM_REV_OFFSET.
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* Other revisions have checksum at EEPROM_REV_OFFSET+1
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* to detect this.
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*/
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if ((buf[0] ^ buf[1]) == 0xFF)
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eeprom_rev = buf[0];
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else
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eeprom_rev = 3;
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/* EEPROM rev 3 has Bluetooth address where rev should be */
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offset = (eeprom_rev == 3) ? EEPROM_REV_OFFSET : EEPROM_BDADDR_OFFSET;
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if (dm_i2c_read(idev, offset, buf, 6)) {
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printf("\nEEPROM serial read failed!\n");
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return;
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}
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sprintf(serial_number, "%02X%02X%02X%02X%02X%02X",
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buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
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env_set("serial#", serial_number);
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}
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int board_early_init_f(void)
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{
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/* enable the console UART */
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writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
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DAVINCI_UART_PWREMU_MGMT_UTRST),
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&davinci_uart1_ctrl_regs->pwremu_mgmt);
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/*
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* Power on required peripherals
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* ARM does not have access by default to PSC0 and PSC1
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* assuming here that the DSP bootloader has set the IOPU
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* such that PSC access is available to ARM
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*/
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if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
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return 1;
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return 0;
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}
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int board_init(void)
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{
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irq_init();
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/* address of boot parameters */
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gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
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/* setup the SUSPSRC for ARM to control emulation suspend */
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writel(readl(&davinci_syscfg_regs->suspsrc) &
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~(DAVINCI_SYSCFG_SUSPSRC_I2C |
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DAVINCI_SYSCFG_SUSPSRC_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
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DAVINCI_SYSCFG_SUSPSRC_UART1),
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&davinci_syscfg_regs->suspsrc);
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/* configure pinmux settings */
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if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
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return 1;
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return 0;
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}
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int board_late_init(void)
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{
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setup_serial_number();
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return 0;
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}
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