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https://github.com/edk2-porting/linux-next.git
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ecc6cd73b7
This patch alters the bootwrapper for a number of machines (roubhly all 4xx based cuboot or treeboot platforms) to use aliases instead of the linux,network-index hack to work out which MAC address to attach to which ethernet device node. The now obsolete linux,network-index properties are removed from the corresponding device trees. This won't break backwards compatiblity, because in cases where this fixup code is relevant, the device tree is part of the kernel image. The references to linux,network-index are removed from booting-without-of.txt. Not only is it now deprecated, but as a hack applicable only when the device tree blob and fixup code were in the same image, this property never belonged in booting-without-of.txt which describes the interface between the kernel and firmware or bootloaders which produce a device tree. By the time the device tree reaches the kernel, all the MAC addresses must be fully filled in. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* Old U-boot compatibility for Taishan
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*
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* Author: Hugh Blemings <hugh@au.ibm.com>
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*
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* Copyright 2007 Hugh Blemings, IBM Corporation.
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* Based on cuboot-ebony.c which is:
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* Copyright 2007 David Gibson, IBM Corporation.
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* Based on cuboot-83xx.c, which is:
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* Copyright (c) 2007 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include "ops.h"
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#include "stdio.h"
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#include "cuboot.h"
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#include "reg.h"
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#include "dcr.h"
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#include "4xx.h"
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#define TARGET_4xx
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#define TARGET_44x
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#define TARGET_440GX
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#include "ppcboot.h"
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static bd_t bd;
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BSS_STACK(4096);
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static void taishan_fixups(void)
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{
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/* FIXME: sysclk should be derived by reading the FPGA
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registers */
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unsigned long sysclk = 33000000;
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ibm440gx_fixup_clocks(sysclk, 6 * 1843200, 25000000);
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ibm4xx_sdram_fixup_memsize();
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dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
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dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
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ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
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}
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void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
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unsigned long r6, unsigned long r7)
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{
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CUBOOT_INIT();
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platform_ops.fixups = taishan_fixups;
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fdt_init(_dtb_start);
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serial_console_init();
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}
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