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https://github.com/brain-hackers/u-boot-brain
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caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* UART support for U-Boot when launched from Coreboot
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*
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* Copyright 2019 Google LLC
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*/
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#include <common.h>
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#include <dm.h>
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#include <ns16550.h>
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#include <serial.h>
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#include <asm/arch/sysinfo.h>
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static int coreboot_ofdata_to_platdata(struct udevice *dev)
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{
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struct ns16550_platdata *plat = dev_get_platdata(dev);
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struct cb_serial *cb_info = lib_sysinfo.serial;
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plat->base = cb_info->baseaddr;
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plat->reg_shift = cb_info->regwidth == 4 ? 2 : 0;
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plat->reg_width = cb_info->regwidth;
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plat->clock = cb_info->input_hertz;
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plat->fcr = UART_FCR_DEFVAL;
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plat->flags = 0;
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if (cb_info->type == CB_SERIAL_TYPE_IO_MAPPED)
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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 coreboot_serial_ids[] = {
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{ .compatible = "coreboot-serial" },
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{ },
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};
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U_BOOT_DRIVER(coreboot_uart) = {
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.name = "coreboot_uart",
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.id = UCLASS_SERIAL,
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.of_match = coreboot_serial_ids,
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.priv_auto = sizeof(struct NS16550),
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.plat_auto = sizeof(struct ns16550_platdata),
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.ofdata_to_platdata = coreboot_ofdata_to_platdata,
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.probe = ns16550_serial_probe,
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.ops = &ns16550_serial_ops,
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.flags = DM_FLAG_PRE_RELOC,
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};
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