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powerpc/amigaone: Bootwrapper and serial console support for AmigaOne
This adds the bootwrapper for the cuImage target and a compatible property check for "pnpPNP,501" to the generic serial console support code. The default link address for the cuImage target is set to 0x800000. This allows to boot the kernel with AmigaOS4's second level bootloader, which always loads a uImage at 0x500000. Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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@ -70,7 +70,7 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c
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cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
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cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
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virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \
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cuboot-acadia.c
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cuboot-acadia.c cuboot-amigaone.c
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src-boot := $(src-wlib) $(src-plat) empty.c
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src-boot := $(addprefix $(obj)/, $(src-boot))
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@ -276,6 +276,9 @@ image-$(CONFIG_STORCENTER) += cuImage.storcenter
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image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
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image-$(CONFIG_PPC_C2K) += cuImage.c2k
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# Board port in arch/powerpc/platform/amigaone/Kconfig
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image-$(CONFIG_AMIGAONE) += cuImage.amigaone
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# For 32-bit powermacs, build the COFF and miboot images
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# as well as the ELF images.
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ifeq ($(CONFIG_PPC32),y)
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35
arch/powerpc/boot/cuboot-amigaone.c
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35
arch/powerpc/boot/cuboot-amigaone.c
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@ -0,0 +1,35 @@
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/*
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* Old U-boot compatibility for AmigaOne
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*
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* Author: Gerhard Pircher (gerhard_pircher@gmx.net)
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*
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* Based on cuboot-83xx.c
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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 "ppcboot.h"
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static bd_t bd;
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static void platform_fixups(void)
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{
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dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
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dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
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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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fdt_init(_dtb_start);
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serial_console_init();
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platform_ops.fixups = platform_fixups;
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}
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@ -117,7 +117,8 @@ int serial_console_init(void)
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if (devp == NULL)
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goto err_out;
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if (dt_is_compatible(devp, "ns16550"))
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if (dt_is_compatible(devp, "ns16550") ||
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dt_is_compatible(devp, "pnpPNP,501"))
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rc = ns16550_console_init(devp, &serial_cd);
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else if (dt_is_compatible(devp, "marvell,mv64360-mpsc"))
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rc = mpsc_console_init(devp, &serial_cd);
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@ -186,6 +186,9 @@ cuboot*)
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*-mpc85*|*-tqm85*|*-sbc85*)
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platformo=$object/cuboot-85xx.o
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;;
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*-amigaone)
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link_address='0x800000'
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;;
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esac
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;;
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ps3)
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