mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +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>
68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Stefan Roese <sr@denx.de>
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*/
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#include <common.h>
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#include <i2c.h>
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#include <winbond_w83627.h>
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#include <asm/gpio.h>
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#include <asm/ibmpc.h>
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#include <asm/pnp_def.h>
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int board_early_init_f(void)
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{
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#ifndef CONFIG_INTERNAL_UART
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/*
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* The FSP enables the BayTrail internal legacy UART (again).
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* Disable it again, so that the Winbond one can be used.
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*/
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setup_internal_uart(0);
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/* Enable the legacy UART in the Winbond W83627 Super IO chip */
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winbond_enable_serial(PNP_DEV(WINBOND_IO_PORT, W83627DHG_SP1),
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UART0_BASE, UART0_IRQ);
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#endif
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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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struct udevice *dev;
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u8 buf[8];
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int ret;
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/* Configure SMSC USB2513 USB Hub: 7bit address 0x2c */
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ret = i2c_get_chip_for_busnum(0, 0x2c, 1, &dev);
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if (ret) {
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printf("Cannot find USB2513: %d\n", ret);
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return 0;
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}
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/*
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* The first access to the USB Hub fails sometimes, so lets read
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* a dummy byte to be sure here
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*/
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dm_i2c_read(dev, 0x00, buf, 1);
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/*
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* The SMSC hub is not visible on the I2C bus after the first
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* configuration at power-up. The following code deliberately
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* does not report upon failure of these I2C write calls.
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*/
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buf[0] = 0x93;
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dm_i2c_write(dev, 0x06, buf, 1);
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buf[0] = 0xaa;
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dm_i2c_write(dev, 0xf8, buf, 1);
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buf[0] = 0x0f;
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dm_i2c_write(dev, 0xfa, buf, 1);
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buf[0] = 0x01;
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dm_i2c_write(dev, 0xff, buf, 1);
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return 0;
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}
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