mirror of
https://git.yoctoproject.org/poky
synced 2026-03-03 22:09:39 +01:00
70abc059eb
git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3014 311d38ba-8fff-0310-9ca6-ca027cbcb966
230 lines
5.9 KiB
Diff
230 lines
5.9 KiB
Diff
board/neo1973/lowlevel_foo.S: http://people.openmoko.org/laforge/tmp/bbt-20070206/lowlevel_foo.S
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board/neo1973/lowlevel_foo.lds: http://people.openmoko.org/laforge/tmp/bbt-20070206/lowlevel_foo.lds
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board/neo1973/Makefile: added building of lowlevel_foo.bin (based on
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http://people.openmoko.org/laforge/tmp/bbt-20070206/lowlevel_foo.build.sh)
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Index: u-boot/board/neo1973/common/lowlevel_foo.S
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===================================================================
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--- /dev/null
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+++ u-boot/board/neo1973/common/lowlevel_foo.S
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@@ -0,0 +1,82 @@
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+
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+_start:
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+ b reset
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+undefvec:
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+ b undefvec
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+swivec:
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+ b swivec
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+pabtvec:
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+ b pabtvec
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+dabtvec:
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+ b dabtvec
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+rsvdvec:
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+ b rsvdvec
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+irqvec:
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+ b irqvec
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+fiqvec:
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+ b fiqvec
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+
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+reset:
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+ /*
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+ * set the cpu to SVC32 mode
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+ */
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+ mrs r0,cpsr
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+ bic r0,r0,#0x1f
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+ orr r0,r0,#0xd3
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+ msr cpsr,r0
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+
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+/* turn off the watchdog */
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+#define pWTCON 0x53000000
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+#define INTMSK 0x4A000008 /* Interupt-Controller base addresses */
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+#define INTSUBMSK 0x4A00001C
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+#define CLKDIVN 0x4C000014 /* clock divisor register */
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+
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+ ldr r0, =pWTCON
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+ mov r1, #0x0
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+ str r1, [r0]
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+
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+ mov r1, #0xffffffff
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+ ldr r0, =INTMSK
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+ str r1, [r0]
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+ ldr r1, =0x3ff
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+ ldr r0, =INTSUBMSK
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+ str r1, [r0]
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+
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+ /* FCLK:HCLK:PCLK = 1:2:4 */
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+ /* default FCLK is 120 MHz ! */
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+ ldr r0, =CLKDIVN
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+ mov r1, #3
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+ str r1, [r0]
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+
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+ bl cpu_init_crit
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+ ldr r0,=TEXT_BASE
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+ mov pc, r0
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+
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+cpu_init_crit:
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+ /*
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+ * flush v4 I/D caches
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+ */
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+ mov r0, #0
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+ mcr p15, 0, r0, c7, c7, 0 /* flush v3/v4 cache */
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+ mcr p15, 0, r0, c8, c7, 0 /* flush v4 TLB */
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+
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+ /*
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+ * disable MMU stuff and caches
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+ */
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+ mrc p15, 0, r0, c1, c0, 0
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+ bic r0, r0, #0x00002300 @ clear bits 13, 9:8 (--V- --RS)
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+ bic r0, r0, #0x00000087 @ clear bits 7, 2:0 (B--- -CAM)
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+ orr r0, r0, #0x00000002 @ set bit 2 (A) Align
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+ orr r0, r0, #0x00001000 @ set bit 12 (I) I-Cache
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+ mcr p15, 0, r0, c1, c0, 0
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+
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+ /*
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+ * before relocating, we have to setup RAM timing
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+ * because memory timing is board-dependend, you will
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+ * find a lowlevel_init.S in your board directory.
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+ */
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+ mov ip, lr
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+ bl lowlevel_init
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+ mov lr, ip
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+ mov pc, lr
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+
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Index: u-boot/board/neo1973/common/lowlevel_foo.lds
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===================================================================
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--- /dev/null
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+++ u-boot/board/neo1973/common/lowlevel_foo.lds
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@@ -0,0 +1,56 @@
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+/*
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+ * (C) Copyright 2002
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+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
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+ *
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+ * See file CREDITS for list of people who contributed to this
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+ * project.
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License as
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+ * published by the Free Software Foundation; either version 2 of
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+ * the License, or (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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+ * MA 02111-1307 USA
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+ */
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+
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+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
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+OUTPUT_ARCH(arm)
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+ENTRY(_start)
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+SECTIONS
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+{
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+ . = 0x00000000;
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+
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+ . = ALIGN(4);
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+ .text :
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+ {
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+ lowlevel_foo.o (.text)
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+ *(.text)
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+ }
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+
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+ . = ALIGN(4);
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+ .rodata : { *(.rodata) }
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+
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+ . = ALIGN(4);
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+ .data : { *(.data) }
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+
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+ . = ALIGN(4);
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+ .got : { *(.got) }
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+
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+ . = .;
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+ __u_boot_cmd_start = .;
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+ .u_boot_cmd : { *(.u_boot_cmd) }
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+ __u_boot_cmd_end = .;
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+
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+ . = ALIGN(4);
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+ __bss_start = .;
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+ .bss : { *(.bss) }
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+ _end = .;
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+}
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Index: u-boot/board/neo1973/gta01/Makefile
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===================================================================
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--- u-boot.orig/board/neo1973/gta01/Makefile
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+++ u-boot/board/neo1973/gta01/Makefile
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@@ -28,14 +28,31 @@
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OBJS := gta01.o pcf50606.o ../common/cmd_neo1973.o ../common/jbt6k74.o ../common/udc.o
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SOBJS := ../common/lowlevel_init.o
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+.PHONY: all
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+
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+all: $(LIB) lowevel_foo.bin
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+
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$(LIB): $(OBJS) $(SOBJS)
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$(AR) crv $@ $(OBJS) $(SOBJS)
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+lowlevel_foo.o: ../common/lowlevel_foo.S
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+ $(CC) -c -DTEXT_BASE=0x33F80000 -march=armv4 \
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+ -o lowlevel_foo.o ../common/lowlevel_foo.S
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+
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+lowlevel_foo: lowlevel_foo.o ../common/lowlevel_init.o ../common/lowlevel_foo.lds
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+ $(LD) -T ../common/lowlevel_foo.lds -Ttext 0x33f80000 -Bstatic \
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+ ../common/lowlevel_init.o lowlevel_foo.o -o lowlevel_foo
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+
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+lowevel_foo.bin: lowlevel_foo
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+ $(CROSS_COMPILE)objcopy --gap-fill=0xff -O binary \
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+ lowlevel_foo lowlevel_foo.bin
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+
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+
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clean:
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- rm -f $(SOBJS) $(OBJS)
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+ rm -f $(SOBJS) $(OBJS) lowlevel_foo lowlevel_foo.o
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distclean: clean
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- rm -f $(LIB) core *.bak .depend
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+ rm -f $(LIB) core *.bak .depend lowlevel_foo.bin
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#########################################################################
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Index: u-boot/board/qt2410/Makefile
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===================================================================
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--- u-boot.orig/board/qt2410/Makefile
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+++ u-boot/board/qt2410/Makefile
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@@ -28,14 +28,31 @@
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OBJS := qt2410.o flash.o
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SOBJS := lowlevel_init.o
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+.PHONY: all
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+
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+all: $(LIB) lowevel_foo.bin
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+
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$(LIB): $(OBJS) $(SOBJS)
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$(AR) crv $@ $(OBJS) $(SOBJS)
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+lowlevel_foo.o: ../neo1973/common/lowlevel_foo.S
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+ $(CC) -c -DTEXT_BASE=0x33F80000 -march=armv4 \
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+ -o lowlevel_foo.o ../neo1973/common/lowlevel_foo.S
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+
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+lowlevel_foo: lowlevel_foo.o lowlevel_init.o \
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+ ../neo1973/common/lowlevel_foo.lds
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+ $(LD) -T ../neo1973/common/lowlevel_foo.lds -Ttext 0x33f80000 -Bstatic \
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+ lowlevel_init.o lowlevel_foo.o -o lowlevel_foo
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+
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+lowevel_foo.bin: lowlevel_foo
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+ $(CROSS_COMPILE)objcopy --gap-fill=0xff -O binary \
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+ lowlevel_foo lowlevel_foo.bin
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+
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clean:
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- rm -f $(SOBJS) $(OBJS)
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+ rm -f $(SOBJS) $(OBJS) lowlevel_foo lowlevel_foo.o
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distclean: clean
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- rm -f $(LIB) core *.bak .depend
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+ rm -f $(LIB) core *.bak .depend lowlevel_foo.bin
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#########################################################################
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