diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/boot/Makefile | 3 | ||||
| -rw-r--r-- | arch/powerpc/boot/cuboot-85xx.c | 69 |
3 files changed, 72 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9b9c00ee688d..a54a9a2e36f3 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -169,6 +169,7 @@ config PPC_85xx select E500 select FSL_SOC select 85xx + select WANT_DEVICE_TREE config PPC_86xx bool "Freescale 86xx" diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 1269b49481ec..9d7b87778995 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -43,7 +43,7 @@ $(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) \ src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \ ns16550.c serial.c simple_alloc.c div64.S util.S \ gunzip_util.c elf_util.c $(zlib) devtree.c -src-plat := of.c cuboot-83xx.c +src-plat := of.c cuboot-83xx.c cuboot-85xx.c src-boot := $(src-wlib) $(src-plat) empty.c src-boot := $(addprefix $(obj)/, $(src-boot)) @@ -163,6 +163,7 @@ $(obj)/uImage: vmlinux $(wrapperbits) $(call if_changed,wrap,uboot) cuboot-plat-$(CONFIG_83xx) += 83xx +cuboot-plat-$(CONFIG_85xx) += 85xx cuboot-plat-y += unknown-platform dts = $(if $(shell echo $(CONFIG_) | grep '^/'),\ diff --git a/arch/powerpc/boot/cuboot-85xx.c b/arch/powerpc/boot/cuboot-85xx.c new file mode 100644 index 000000000000..f88ba00ac122 --- /dev/null +++ b/arch/powerpc/boot/cuboot-85xx.c @@ -0,0 +1,69 @@ +/* + * Old U-boot compatibility for 85xx + * + * Author: Scott Wood <scottwood@freescale.com> + * + * 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" + +#define TARGET_85xx +#include "ppcboot.h" + +static bd_t bd; +extern char _end[]; +extern char _dtb_start[], _dtb_end[]; + +static void platform_fixups(void) +{ + void *soc; + + dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); + dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr, + bd.bi_enet2addr); + dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq); + + /* Unfortunately, the specific model number is encoded in the + * soc node name in existing dts files -- once that is fixed, + * this can do a simple path lookup. + */ + soc = find_node_by_devtype(NULL, "soc"); + if (soc) { + void *serial = NULL; + + setprop(soc, "bus-frequency", &bd.bi_busfreq, + sizeof(bd.bi_busfreq)); + + while ((serial = find_node_by_devtype(serial, "serial"))) { + if (get_parent(serial) != soc) + continue; + + setprop(serial, "clock-frequency", &bd.bi_busfreq, + sizeof(bd.bi_busfreq)); + } + } +} + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + unsigned long end_of_ram = bd.bi_memstart + bd.bi_memsize; + unsigned long avail_ram = end_of_ram - (unsigned long)_end; + + memcpy(&bd, (bd_t *)r3, sizeof(bd)); + loader_info.initrd_addr = r4; + loader_info.initrd_size = r4 ? r5 : 0; + loader_info.cmdline = (char *)r6; + loader_info.cmdline_len = r7 - r6; + + simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64); + ft_init(_dtb_start, _dtb_end - _dtb_start, 32); + serial_console_init(); + platform_ops.fixups = platform_fixups; +} |