4 Jul
2008
4 Jul
'08
8:28 p.m.
Hi,
Jens Gehrlein wrote:
diff --git a/board/tqc/tqma31/lowlevel_init.S b/board/tqc/tqma31/lowlevel_init.S new file mode 100644 index 0000000..50db3a1 --- /dev/null +++ b/board/tqc/tqma31/lowlevel_init.S @@ -0,0 +1,375 @@ +/*
- Copyright (C) 2008, Guennadi Liakhovetski lg@denx.de
- Copyright (C) 2008, Jens Gehrlein sew_s@tqs.de
- 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 <asm/arch/mx31-regs.h> +#include <config.h>
+.macro REG reg, val
- ldr r2, =\reg
- ldr r3, =\val
- str r3, [r2]
+.endm
+.macro REG8 reg, val
- ldr r2, =\reg
- ldr r3, =\val
- strb r3, [r2]
+.endm
+.macro DELAY loops
- ldr r2, =\loops
+1:
- subs r2, r2, #1
- nop
- bcs 1b
+.endm
+/*
- AIPS setup - Only setup MPROTx registers.
- The PACR default values are good.
- */
+.macro init_aips
- /* Setup the Peripheral Port Remap register inside the core */
- ldr r0, =0x40000015 /* start from AIPS 2GB region */
- mcr p15, 0, r0, c15, c2, 4
- /*
* Set all MPROTx to be non-bufferable, trusted for R/W,* not forced to user-mode.*/- ldr r0, =0x43F00000
How about adding/using symbolic names for i.MX31 register addresses also in the init_aips, init_max, init_m3if and init_drive_strength macros? It helps readability IMO.
Regards, Magnus