Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2024 Allied Telesis
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*/
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#include <linux/errno.h>
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#include <linux/libfdt.h>
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#include <linux/printk.h>
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#include <linux/types.h>
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#include <asm/fw/fw.h>
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#include <asm/machine.h>
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static __init int realtek_add_initrd(void *fdt)
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{
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int node, err;
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u32 start, size;
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node = fdt_path_offset(fdt, "/chosen");
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if (node < 0) {
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pr_err("/chosen node not found\n");
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return -ENOENT;
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}
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start = fw_getenvl("initrd_start");
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size = fw_getenvl("initrd_size");
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if (start == 0 && size == 0)
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return 0;
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pr_info("Adding initrd info from environment\n");
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err = fdt_setprop_u32(fdt, node, "linux,initrd-start", start);
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if (err) {
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pr_err("unable to set initrd-start: %d\n", err);
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return err;
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}
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err = fdt_setprop_u32(fdt, node, "linux,initrd-end", start + size);
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if (err) {
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pr_err("unable to set initrd-end: %d\n", err);
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return err;
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}
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return 0;
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}
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static const struct mips_fdt_fixup realtek_fdt_fixups[] __initconst = {
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{ realtek_add_initrd, "add initrd" },
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{},
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};
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static __init const void *realtek_fixup_fdt(const void *fdt, const void *match_data)
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{
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static unsigned char fdt_buf[16 << 10] __initdata;
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int err;
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if (fdt_check_header(fdt))
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panic("Corrupt DT");
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fw_init_cmdline();
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err = apply_mips_fdt_fixups(fdt_buf, sizeof(fdt_buf), fdt, realtek_fdt_fixups);
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if (err)
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panic("Unable to fixup FDT: %d", err);
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return fdt_buf;
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}
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static const struct of_device_id realtek_of_match[] __initconst = {
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{ .compatible = "realtek,rtl9302-soc" },
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{}
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};
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MIPS_MACHINE(realtek) = {
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.matches = realtek_of_match,
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.fixup_fdt = realtek_fixup_fdt,
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};
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