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authorGerhard Pircher <gerhard_pircher@gmx.net>2009-02-10 12:26:11 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-02-11 16:00:09 +1100
commit8f23735d8f8cfd4d46e3aa336690f52b8b5d3c75 (patch)
tree7e8644dc5661cfe80ee8685914589de1b1ab3faa
parent50408b7defa513a9ea1107b42674167e53ba7a4a (diff)
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>
-rw-r--r--arch/powerpc/boot/Makefile5
-rw-r--r--arch/powerpc/boot/cuboot-amigaone.c35
-rw-r--r--arch/powerpc/boot/serial.c3
-rwxr-xr-xarch/powerpc/boot/wrapper3
4 files changed, 44 insertions, 2 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 8244813bc5a..4458abb67c5 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -70,7 +70,7 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c
cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \
- cuboot-acadia.c
+ cuboot-acadia.c cuboot-amigaone.c
src-boot := $(src-wlib) $(src-plat) empty.c
src-boot := $(addprefix $(obj)/, $(src-boot))
@@ -276,6 +276,9 @@ image-$(CONFIG_STORCENTER) += cuImage.storcenter
image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
image-$(CONFIG_PPC_C2K) += cuImage.c2k
+# Board port in arch/powerpc/platform/amigaone/Kconfig
+image-$(CONFIG_AMIGAONE) += cuImage.amigaone
+
# For 32-bit powermacs, build the COFF and miboot images
# as well as the ELF images.
ifeq ($(CONFIG_PPC32),y)
diff --git a/arch/powerpc/boot/cuboot-amigaone.c b/arch/powerpc/boot/cuboot-amigaone.c
new file mode 100644
index 00000000000..d5029674030
--- /dev/null
+++ b/arch/powerpc/boot/cuboot-amigaone.c
@@ -0,0 +1,35 @@
+/*
+ * Old U-boot compatibility for AmigaOne
+ *
+ * Author: Gerhard Pircher (gerhard_pircher@gmx.net)
+ *
+ * Based on cuboot-83xx.c
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "ops.h"
+#include "stdio.h"
+#include "cuboot.h"
+
+#include "ppcboot.h"
+
+static bd_t bd;
+
+static void platform_fixups(void)
+{
+ dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
+ dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ CUBOOT_INIT();
+ fdt_init(_dtb_start);
+ serial_console_init();
+ platform_ops.fixups = platform_fixups;
+}
diff --git a/arch/powerpc/boot/serial.c b/arch/powerpc/boot/serial.c
index 8b3607cb53f..f2156f07571 100644
--- a/arch/powerpc/boot/serial.c
+++ b/arch/powerpc/boot/serial.c
@@ -117,7 +117,8 @@ int serial_console_init(void)
if (devp == NULL)
goto err_out;
- if (dt_is_compatible(devp, "ns16550"))
+ if (dt_is_compatible(devp, "ns16550") ||
+ dt_is_compatible(devp, "pnpPNP,501"))
rc = ns16550_console_init(devp, &serial_cd);
else if (dt_is_compatible(devp, "marvell,mv64360-mpsc"))
rc = mpsc_console_init(devp, &serial_cd);
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 965c237c122..6170bbf339a 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -186,6 +186,9 @@ cuboot*)
*-mpc85*|*-tqm85*|*-sbc85*)
platformo=$object/cuboot-85xx.o
;;
+ *-amigaone)
+ link_address='0x800000'
+ ;;
esac
;;
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