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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 commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2019 Intel Corporation <www.intel.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <log.h>
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#include <ns16550.h>
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#include <serial.h>
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#include <asm/arch/slimbootloader.h>
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#include <asm/global_data.h>
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/**
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* The serial port info hob is generated by Slim Bootloader, so eligible for
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* Slim Bootloader based boards only.
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*/
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static int slimbootloader_serial_of_to_plat(struct udevice *dev)
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{
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const efi_guid_t guid = SBL_SERIAL_PORT_INFO_GUID;
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struct sbl_serial_port_info *data;
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struct ns16550_plat *plat = dev_get_plat(dev);
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if (!gd->arch.hob_list)
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panic("hob list not found!");
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data = hob_get_guid_hob_data(gd->arch.hob_list, NULL, &guid);
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if (!data) {
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debug("failed to get serial port information\n");
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return -ENOENT;
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}
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debug("type:%d base=0x%08x baudrate=%d stride=%d clk=%d\n",
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data->type,
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data->base,
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data->baud,
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data->stride,
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data->clk);
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plat->base = data->base;
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/* ns16550 uses reg_shift, then covert stride to shift */
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plat->reg_shift = data->stride >> 1;
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plat->reg_width = data->stride;
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plat->clock = data->clk;
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plat->fcr = UART_FCR_DEFVAL;
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plat->flags = 0;
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if (data->type == 1)
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plat->flags |= NS16550_FLAG_IO;
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return 0;
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}
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static const struct udevice_id slimbootloader_serial_ids[] = {
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{ .compatible = "intel,slimbootloader-uart" },
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{}
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};
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U_BOOT_DRIVER(serial_slimbootloader) = {
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.name = "serial_slimbootloader",
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.id = UCLASS_SERIAL,
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.of_match = slimbootloader_serial_ids,
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.of_to_plat = slimbootloader_serial_of_to_plat,
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.plat_auto = sizeof(struct ns16550_plat),
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.priv_auto = sizeof(struct ns16550),
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.probe = ns16550_serial_probe,
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.ops = &ns16550_serial_ops,
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};
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