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authorMike Frysinger <vapier@gentoo.org>2009-06-14 06:29:07 -0400
committerMike Frysinger <vapier@gentoo.org>2009-06-14 20:01:14 -0400
commit9ff67e5e4c719556d57f136a6453f8e4798d85c0 (patch)
treee004a20f45b84b209dfae8cc854bfc4d750be682 /lib_blackfin
parentf52efcae98cbb8a39f1d0535df8d9646a776af9e (diff)
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Blackfin: unify u-boot linker scripts
All the Blackfin linker scripts were duplicated across the board dirs with no difference save from the semi-often used ENV_IS_EMBEDDED option. So unify all of them in the lib_blackfin/ dir and for the few boards that need to embedded the environment directly, add a LDS_BOARD_TEXT define for them to customize via their board config file. This is much simpler than forcing them to duplicate the rest of the linker script. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'lib_blackfin')
-rw-r--r--lib_blackfin/.gitignore1
-rw-r--r--lib_blackfin/Makefile5
-rw-r--r--lib_blackfin/u-boot.lds.S132
3 files changed, 137 insertions, 1 deletions
diff --git a/lib_blackfin/.gitignore b/lib_blackfin/.gitignore
new file mode 100644
index 0000000..09f1be0
--- /dev/null
+++ b/lib_blackfin/.gitignore
@@ -0,0 +1 @@
+u-boot.lds
diff --git a/lib_blackfin/Makefile b/lib_blackfin/Makefile
index 46ef7f3..e32ecc9 100644
--- a/lib_blackfin/Makefile
+++ b/lib_blackfin/Makefile
@@ -47,9 +47,12 @@ COBJS-y += string.o
SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
-$(LIB): $(obj).depend $(OBJS)
+$(LIB): $(obj).depend $(OBJS) $(obj)u-boot.lds
$(AR) $(ARFLAGS) $@ $(OBJS)
+$(obj)u-boot.lds: u-boot.lds.S
+ $(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P $^ > $@
+
#########################################################################
# defines $(obj).depend target
diff --git a/lib_blackfin/u-boot.lds.S b/lib_blackfin/u-boot.lds.S
new file mode 100644
index 0000000..4755153
--- /dev/null
+++ b/lib_blackfin/u-boot.lds.S
@@ -0,0 +1,132 @@
+/*
+ * U-boot - u-boot.lds.S
+ *
+ * Copyright (c) 2005-2008 Analog Device Inc.
+ *
+ * (C) Copyright 2000-2004
+ * 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 <config.h>
+#include <asm/blackfin.h>
+#undef ALIGN
+#undef ENTRY
+#undef bfin
+
+#ifndef LDS_BOARD_TEXT
+# define LDS_BOARD_TEXT
+#endif
+
+/* If we don't actually load anything into L1 data, this will avoid
+ * a syntax error. If we do actually load something into L1 data,
+ * we'll get a linker memory load error (which is what we'd want).
+ * This is here in the first place so we can quickly test building
+ * for different CPU's which may lack non-cache L1 data.
+ */
+#ifndef L1_DATA_B_SRAM
+# define L1_DATA_B_SRAM CONFIG_SYS_MONITOR_BASE
+# define L1_DATA_B_SRAM_SIZE 0
+#endif
+
+OUTPUT_ARCH(bfin)
+
+MEMORY
+{
+ ram : ORIGIN = CONFIG_SYS_MONITOR_BASE, LENGTH = CONFIG_SYS_MONITOR_LEN
+ l1_code : ORIGIN = L1_INST_SRAM, LENGTH = L1_INST_SRAM_SIZE
+ l1_data : ORIGIN = L1_DATA_B_SRAM, LENGTH = L1_DATA_B_SRAM_SIZE
+}
+
+ENTRY(_start)
+SECTIONS
+{
+ .text :
+ {
+ cpu/blackfin/start.o (.text .text.*)
+
+ LDS_BOARD_TEXT
+
+ __initcode_start = .;
+ cpu/blackfin/initcode.o (.text .text.*)
+ __initcode_end = .;
+
+ *(.text .text.*)
+ } >ram
+
+ .rodata :
+ {
+ . = ALIGN(4);
+ *(.rodata .rodata.*)
+ *(.rodata1)
+ *(.eh_frame)
+ . = ALIGN(4);
+ } >ram
+
+ .data :
+ {
+ . = ALIGN(256);
+ *(.data .data.*)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ } >ram
+
+ .u_boot_cmd :
+ {
+ ___u_boot_cmd_start = .;
+ *(.u_boot_cmd)
+ ___u_boot_cmd_end = .;
+ } >ram
+
+ .text_l1 :
+ {
+ . = ALIGN(4);
+ __stext_l1 = .;
+ *(.l1.text)
+ . = ALIGN(4);
+ __etext_l1 = .;
+ } >l1_code AT>ram
+ __stext_l1_lma = LOADADDR(.text_l1);
+
+ .data_l1 :
+ {
+ . = ALIGN(4);
+ __sdata_l1 = .;
+ *(.l1.data)
+ *(.l1.bss)
+ . = ALIGN(4);
+ __edata_l1 = .;
+ } >l1_data AT>ram
+ __sdata_l1_lma = LOADADDR(.data_l1);
+
+ .bss :
+ {
+ . = ALIGN(4);
+ __bss_start = .;
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss .bss.*)
+ *(COMMON)
+ __bss_end = .;
+ } >ram
+}