+# 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 +# +PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
- -msoft-float
+# Make ARMv5 to allow more compilers to work, even though its v6. +PLATFORM_CPPFLAGS += -march=armv5t
could we do it dynamicly?
+# ========================================================================= +# +# Supply options according to compiler version +# +# ========================================================================= +PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) +PLATFORM_CPPFLAGS +=$(call cc-option,-mno-thumb-interwork,) +PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) diff --git a/cpu/arm1176/cpu.c b/cpu/arm1176/cpu.c new file mode 100644 index 0000000..54228d1 --- /dev/null +++ b/cpu/arm1176/cpu.c @@ -0,0 +1,186 @@ +/*
- (C) Copyright 2004 Texas Insturments
- (C) Copyright 2002
- Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- Marius Groeger mgroeger@sysgo.de
- (C) Copyright 2002
- Gary Jennejohn, DENX Software Engineering, gj@denx.de
- See file CREDITS for list of people who contributed to this
- project.
+{
- volatile int i;
- /* Many OMAP regs need at least 2 nops */
so please use nop
- for (i = 0; i < 100; i++);
+}
+/* See also ARM Ref. Man. */ +#define C1_MMU (1<<0) /* mmu off/on */ +#define C1_ALIGN (1<<1) /* alignment faults off/on */ +#define C1_DC (1<<2) /* dcache off/on */ +#define C1_WB (1<<3) /* merging write buffer on/off */ +#define C1_BIG_ENDIAN (1<<7) /* big endian off/on */ +#define C1_SYS_PROT (1<<8) /* system protection */ +#define C1_ROM_PROT (1<<9) /* ROM protection */ +#define C1_IC (1<<12) /* icache off/on */ +#define C1_HIGH_VECTORS (1<<13) /* location of vectors: low/high addresses */ +#define RESERVED_1 (0xf << 3) /* must be 111b for R/W */
+int cpu_init (void) +{
- return 0;
+}
+int cleanup_before_linux (void) +{
- /*
* this function is called just before we call linux* it prepares the processor for linux** we turn off caches etc ...*/- unsigned long i;
- disable_interrupts ();
- /* turn off I/D-cache */
- asm ("mrc p15, 0, %0, c1, c0, 0":"=r" (i));
- i &= ~(C1_DC | C1_IC);
- asm ("mcr p15, 0, %0, c1, c0, 0": :"r" (i));
why don't you use icache_disable() and dcache_disable()?
- /* flush I/D-cache */
- i = 0;
- asm ("mcr p15, 0, %0, c7, c7, 0": :"r" (i)); /* invalidate both caches and flush btb */
- asm ("mcr p15, 0, %0, c7, c10, 4": :"r" (i)); /* mem barrier to sync things */
please implement icache_flush() and dcache_flush()
- return 0;
+}
+++ b/cpu/arm1176/s3c64xx/Makefile +#include <common.h> +#include <asm/proc-armv/ptrace.h> +#include <s3c6400.h>
+static ulong timer_load_val;
+#define PRESCALER 167
+/* macro to read the 16 bit timer */ +static inline ulong READ_TIMER(void) +{
- S3C64XX_TIMERS *const timers = S3C64XX_GetBase_TIMERS();
please do not use UPPERCASE var type and function & co
- return timers->TCNTO4;
+}
new file mode 100644 index 0000000..f28ebe8 --- /dev/null +++ b/cpu/arm1176/s3c64xx/nand_cp.c @@ -0,0 +1,132 @@ +/*
- $Id: nand_cp.c,v 1.3 2007/02/26 06:19:52 yongkal Exp $
please remove
- (C) Copyright 2006 Samsung Electronics
- 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
- */
please be carefull of the coding style too
Best Regards, J.