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https://github.com/AsahiLinux/u-boot
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765a1b1eb3
Add support for the Rockchip serial device using the ns16550 driver. This uses driver model and device tree for both SPL and U-Boot proper. Signed-off-by: Simon Glass <sjg@chromium.org>
43 lines
970 B
C
43 lines
970 B
C
/*
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* Copyright (c) 2015 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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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/clock.h>
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static const struct udevice_id rockchip_serial_ids[] = {
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{ .compatible = "rockchip,rk3288-uart" },
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{ }
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};
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static int rockchip_serial_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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int ret;
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ret = ns16550_serial_ofdata_to_platdata(dev);
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if (ret)
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return ret;
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/* Do all Rockchip parts use 24MHz? */
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plat->clock = 24 * 1000000;
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return 0;
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}
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U_BOOT_DRIVER(serial_ns16550) = {
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.name = "serial_rockchip",
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.id = UCLASS_SERIAL,
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.of_match = rockchip_serial_ids,
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.ofdata_to_platdata = rockchip_serial_ofdata_to_platdata,
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.platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
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.priv_auto_alloc_size = sizeof(struct NS16550),
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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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