mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 12:46:17 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
176 lines
4.0 KiB
C
176 lines
4.0 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 - http://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 <i2c.h>
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#include <net.h>
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#include <netdev.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/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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#ifdef CONFIG_MMC_DAVINCI
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#include <mmc.h>
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#include <asm/arch/sdmmc_defs.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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u8 board_rev;
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#define EEPROM_I2C_ADDR 0x50
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#define EEPROM_REV_OFFSET 0x3F00
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#define EEPROM_MAC_OFFSET 0x3F06
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#ifdef CONFIG_MMC_DAVINCI
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static struct davinci_mmc mmc_sd0 = {
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.reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
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.host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */
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.voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
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.version = MMC_CTLR_VERSION_2,
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};
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int board_mmc_init(bd_t *bis)
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{
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mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID);
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/* Add slot-0 to mmc subsystem */
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return davinci_mmc_init(bis, &mmc_sd0);
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}
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#endif
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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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u32 get_board_rev(void)
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{
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u8 buf[2];
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if (!board_rev) {
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if (i2c_read(EEPROM_I2C_ADDR, EEPROM_REV_OFFSET, 2, buf, 2)) {
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printf("\nBoard revision read failed!\n");
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} else {
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/*
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* Board rev 3 has MAC 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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board_rev = buf[0];
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else
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board_rev = 3;
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}
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}
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return board_rev;
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}
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/*
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* The Bluetooth MAC address serves as the board serial number.
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*/
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void get_board_serial(struct tag_serialnr *serialnr)
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{
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u32 offset;
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u8 buf[6];
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if (!board_rev)
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board_rev = get_board_rev();
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/* Board rev 3 has MAC address where rev should be */
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offset = (board_rev == 3) ? EEPROM_REV_OFFSET : EEPROM_MAC_OFFSET;
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if (i2c_read(EEPROM_I2C_ADDR, offset, 2, buf, 6)) {
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printf("\nBoard serial read failed!\n");
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} else {
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u8 *nr;
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nr = (u8 *)&serialnr->low;
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nr[0] = buf[5];
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nr[1] = buf[4];
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nr[2] = buf[3];
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nr[3] = buf[2];
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nr = (u8 *)&serialnr->high;
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nr[0] = buf[1];
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nr[1] = buf[0];
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nr[2] = 0;
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nr[3] = 0;
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}
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}
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int board_early_init_f(void)
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{
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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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/* arch number of the board */
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/* LEGO didn't register for a unique number and uses da850evm */
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gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;
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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_EMAC | 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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/* 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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return 0;
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}
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