C6X has subfamilys: C62x C64x C66x C67x C645x C674x. This patch add support of subfamily C674x (C6745/C6746/C6747 CPUs).
Signed-off-by: Dmitry Bondar bond@inmys.ru Cc: Tom Rini trini@ti.com --- arch/c6x/cpu/c674x/Makefile | 30 ++++++++++++++++ arch/c6x/cpu/c674x/cache.c | 17 +++++++++ arch/c6x/cpu/c674x/config.mk | 14 ++++++++ arch/c6x/cpu/c674x/start.S | 22 ++++++++++++ arch/c6x/cpu/u-boot.lds | 76 ++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 159 insertions(+), 0 deletions(-) create mode 100644 arch/c6x/cpu/c674x/Makefile create mode 100644 arch/c6x/cpu/c674x/cache.c create mode 100644 arch/c6x/cpu/c674x/config.mk create mode 100644 arch/c6x/cpu/c674x/start.S create mode 100644 arch/c6x/cpu/u-boot.lds
diff --git a/arch/c6x/cpu/c674x/Makefile b/arch/c6x/cpu/c674x/Makefile new file mode 100644 index 0000000..bfe0db6 --- /dev/null +++ b/arch/c6x/cpu/c674x/Makefile @@ -0,0 +1,30 @@ +# (C) Copyright 2012 Dmitry Bondar bond@inmys.ru +# +# This file is released under the terms of GPL v2 and any later version. +# See the file COPYING in the root directory of the source tree for details. + + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).o + +START = start.o +COBJS = cache.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/c6x/cpu/c674x/cache.c b/arch/c6x/cpu/c674x/cache.c new file mode 100644 index 0000000..e2d6866 --- /dev/null +++ b/arch/c6x/cpu/c674x/cache.c @@ -0,0 +1,17 @@ +/* (C) Copyright 2012 Dmitry Bondar bond@inmys.ru + * + * This file is released under the terms of GPL v2 and any later version. + * See the file COPYING in the root directory of the source tree for details. +*/ + +void flush_cache(unsigned long addr, unsigned long len) +{ +} + +void flush_dcache_range(unsigned long start, unsigned long stop) +{ +} + +void invalidate_dcache_range(unsigned long start, unsigned long stop) +{ +} diff --git a/arch/c6x/cpu/c674x/config.mk b/arch/c6x/cpu/c674x/config.mk new file mode 100644 index 0000000..8ee1325 --- /dev/null +++ b/arch/c6x/cpu/c674x/config.mk @@ -0,0 +1,14 @@ +# (C) Copyright 2012 Dmitry Bondar bond@inmys.ru +# +# This file is released under the terms of GPL v2 and any later version. +# See the file COPYING in the root directory of the source tree for details. + +PLATFORM_RELFLAGS += -fno-common -ffixed-B31 + +PLATFORM_CPPFLAGS += -march=c674x -msdata=none -mno-dsbt -DCONFIG_TMS320C64XPLUS +# ========================================================================= +# +# Supply options according to compiler version +# +# ========================================================================= +PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) diff --git a/arch/c6x/cpu/c674x/start.S b/arch/c6x/cpu/c674x/start.S new file mode 100644 index 0000000..c144978 --- /dev/null +++ b/arch/c6x/cpu/c674x/start.S @@ -0,0 +1,22 @@ +; (C) Copyright 2012 Dmitry Bondar bond@inmys.ru +; +; This file is released under the terms of GPL v2 and any later version. +; See the file COPYING in the root directory of the source tree for details. + +#include <config.h> +#include <asm-offsets.h> + + .global _start +_start: + ;; Jump to u-boot + MVKL .S2 CONFIG_SYS_INIT_SP_ADDR,B15 + MVKH .S2 CONFIG_SYS_INIT_SP_ADDR,B15 + MVKL .S1 board_init_f,A0 + MVKH .S1 board_init_f,A0 + B .S2X A0 + MVKL .S2 L1,B3 + MVKH .S2 L1,B3 + NOP 3 +L1: B .S2 B3 + NOP 5 + diff --git a/arch/c6x/cpu/u-boot.lds b/arch/c6x/cpu/u-boot.lds new file mode 100644 index 0000000..a6d7c82 --- /dev/null +++ b/arch/c6x/cpu/u-boot.lds @@ -0,0 +1,76 @@ +/* + * (C) Copyright 2002-2004 + * Gary Jennejohn, DENX Software Engineering, gj@denx.de + * + * (C) Copyright 2012 Dmitry Bondar bond@inmys.ru + * + * 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 + */ + +/*OUTPUT_FORMAT("elf32-littlec6x", "elf32-littlec6x", "elf32-littlec6x")*/ +/*OUTPUT_ARCH(c6x)*/ +ENTRY(_start) +SECTIONS +{ + . = ALIGN(4); + .text : + { + CPUDIR/start.o (.text) + *(.text) + } + + . = ALIGN(4); + .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } + + . = ALIGN(4); + .data : { + *(.data) + } + . = ALIGN(4); + .fardata : { + *(.data) + } + . = ALIGN(4); + .const : { + *(.const) + } + + . = ALIGN(4); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + + _end = .; + + __bss_start = .; + . = ALIGN(32); + .far : { *(.far) } + . = ALIGN(32); + __bss_end__ = .; + + /DISCARD/ : { *(.dynstr*) } + /DISCARD/ : { *(.dynamic*) } + /DISCARD/ : { *(.plt*) } + /DISCARD/ : { *(.interp*) } + /DISCARD/ : { *(.gnu*) } +}