commit 0e6e4bbe5be1ef7f601abe7eddbe44b56fd5e43a Author: Nikita Youshchenko yoush@cs.msu.su Date: Mon Feb 25 11:27:06 2008 +0000
cpu/mpc8260/: ported new fdt code from cpu/mpc83xx/
This patch splits mpc8260 fdt fixup code into individual file, fdt.c, and updates it up to what is in cpu/mpc83xx/fdt.c.
Also, it adds setting current-speed property for SMC uart, and setting value of 'brg-frequency' property on SOC node, if that property exists. The later is needed to support booting of vendor kernels based on 2.6.18 or near that.
Signed-off-by: Nikita Youshchenko yoush@cs.msu.su
diff --git a/cpu/mpc8260/Makefile b/cpu/mpc8260/Makefile index 80d7852..d2a9f79 100644 --- a/cpu/mpc8260/Makefile +++ b/cpu/mpc8260/Makefile @@ -28,7 +28,7 @@ LIB = $(obj)lib$(CPU).a START = start.o kgdb.o COBJS = traps.o serial_smc.o serial_scc.o cpu.o cpu_init.o speed.o \ interrupts.o ether_scc.o ether_fcc.o i2c.o commproc.o \ - bedbug_603e.o pci.o spi.o + bedbug_603e.o pci.o spi.o fdt.o
SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/mpc8260/cpu.c b/cpu/mpc8260/cpu.c index 55e61a1..f6383c3 100644 --- a/cpu/mpc8260/cpu.c +++ b/cpu/mpc8260/cpu.c @@ -47,12 +47,6 @@ #include <asm/processor.h> #include <asm/cpm_8260.h>
-#if defined(CONFIG_OF_LIBFDT) -#include <libfdt.h> -#include <libfdt_env.h> -#include <fdt_support.h> -#endif - DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_GET_CPU_STR_F) @@ -298,15 +292,3 @@ void watchdog_reset (void) enable_interrupts (); } #endif /* CONFIG_WATCHDOG */ - -/* ------------------------------------------------------------------------- */ -#if defined(CONFIG_OF_LIBFDT) -void ft_cpu_setup (void *blob, bd_t *bd) -{ - char * cpu_path = "/cpus/" OF_CPU; - - do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1); - do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1); - do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1); -} -#endif /* CONFIG_OF_LIBFDT */ diff --git a/cpu/mpc8260/fdt.c b/cpu/mpc8260/fdt.c new file mode 100644 index 0000000..28bfe24 --- /dev/null +++ b/cpu/mpc8260/fdt.c @@ -0,0 +1,73 @@ +/* + * Copyright 2007 Freescale Semiconductor, Inc. + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#if defined(CONFIG_OF_LIBFDT) + +#include <libfdt.h> +#include <fdt_support.h> + +void ft_cpu_setup (void *blob, bd_t *bd) +{ + +#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\ + defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3) + fdt_fixup_ethernet(blob, bd); +#endif + + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "timebase-frequency", (bd->bi_busfreq / 4), 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "clock-frequency", bd->bi_intfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "soc", 4, + "bus-frequency", bd->bi_busfreq, 1); + + /* This is used by obsolete kernels only. + Let's set it in case it exists, but not create it. */ + do_fixup_by_prop_u32(blob, "device_type", "soc", 4, + "brg-frequency", bd->bi_brgfreq, 0); + +#ifdef CFG_NS16550 + do_fixup_by_compat_u32(blob, "ns16550", + "clock-frequency", bd->bi_busfreq, 1); +#endif + +#ifdef CONFIG_CPM2 + do_fixup_by_compat_u32(blob, "fsl,cpm2-smc-uart", + "current-speed", bd->bi_baudrate, 1); + do_fixup_by_compat_u32(blob, "fsl,cpm2-scc-uart", + "current-speed", bd->bi_baudrate, 1); + + do_fixup_by_compat_u32(blob, "fsl,cpm2-brg", + "clock-frequency", bd->bi_brgfreq, 1); +#endif + + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); +} + +#endif /* CONFIG_OF_LIBFDT */