mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +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>
145 lines
3.2 KiB
C
145 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011 OMICRON electronics GmbH
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*
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* Based on da850evm.c. Original Copyrights follow:
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*
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* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
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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 <watchdog.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/gpio.h>
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#include <asm/ti-common/davinci_nand.h>
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#include <asm/arch/emac_defs.h>
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#include <asm/arch/pinmux_defs.h>
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#include <asm/arch/davinci_misc.h>
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#include <asm/arch/timer_defs.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define CALIMAIN_HWVERSION_MASK 0x7f000000
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#define CALIMAIN_HWVERSION_SHIFT 24
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/* Hardware version pinmux settings */
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const struct pinmux_config hwversion_pins[] = {
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{ pinmux(16), 8, 2 }, /* GP7[15] */
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{ pinmux(16), 8, 3 }, /* GP7[14] */
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{ pinmux(16), 8, 4 }, /* GP7[13] */
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{ pinmux(16), 8, 5 }, /* GP7[12] */
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{ pinmux(16), 8, 6 }, /* GP7[11] */
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{ pinmux(16), 8, 7 }, /* GP7[10] */
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{ pinmux(17), 8, 0 }, /* GP7[9] */
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{ pinmux(17), 8, 1 } /* GP7[8] */
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};
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const struct pinmux_resource pinmuxes[] = {
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PINMUX_ITEM(uart2_pins_txrx),
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PINMUX_ITEM(emac_pins_mii),
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PINMUX_ITEM(emac_pins_mdio),
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PINMUX_ITEM(emifa_pins_nor),
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PINMUX_ITEM(emifa_pins_cs2),
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PINMUX_ITEM(emifa_pins_cs3),
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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_AEMIF }, /* NAND, NOR */
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{ DAVINCI_LPSC_EMAC }, /* image download */
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{ DAVINCI_LPSC_UART2 }, /* console */
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{ DAVINCI_LPSC_GPIO },
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};
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const int lpsc_size = ARRAY_SIZE(lpsc);
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/* read board revision from GPIO7[8..14] */
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u32 get_board_rev(void)
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{
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lpsc_on(DAVINCI_LPSC_GPIO);
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if (davinci_configure_pin_mux(hwversion_pins,
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ARRAY_SIZE(hwversion_pins)) != 0)
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return 0xffffffff;
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return (davinci_gpio_bank67->in_data & CALIMAIN_HWVERSION_MASK)
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>> CALIMAIN_HWVERSION_SHIFT;
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}
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/*
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* determine the oscillator frequency depending on the board revision
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*
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* rev 0x00 ... 25 MHz oscillator
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* rev 0x01 ... 24 MHz oscillator
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*/
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int calimain_get_osc_freq(void)
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{
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u32 rev;
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int freq;
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rev = get_board_rev();
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switch (rev) {
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case 0x00:
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freq = 25000000;
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break;
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default:
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freq = 24000000;
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break;
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}
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return freq;
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}
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int board_init(void)
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{
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int val;
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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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#ifdef CONFIG_DRIVER_TI_EMAC
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/* select emac MII mode */
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val = readl(&davinci_syscfg_regs->cfgchip3);
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val &= ~(1 << 8);
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writel(val, &davinci_syscfg_regs->cfgchip3);
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#endif /* CONFIG_DRIVER_TI_EMAC */
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#ifdef CONFIG_HW_WATCHDOG
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davinci_hw_watchdog_enable();
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#endif
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printf("Input clock frequency: %d Hz\n", calimain_get_osc_freq());
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printf("Board revision: %d\n", get_board_rev());
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return 0;
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}
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#ifdef CONFIG_DRIVER_TI_EMAC
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/*
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* Initializes on-board ethernet controllers.
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*/
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int board_eth_init(bd_t *bis)
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{
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if (!davinci_emac_initialize()) {
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printf("Error: Ethernet init failed!\n");
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return -1;
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}
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return 0;
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}
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#endif /* CONFIG_DRIVER_TI_EMAC */
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#ifdef CONFIG_HW_WATCHDOG
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void hw_watchdog_reset(void)
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{
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davinci_hw_watchdog_reset();
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}
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#endif
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