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| author | Markus Klotzbuecher <mk@denx.de> | 2007-09-17 17:12:45 +0200 |
|---|---|---|
| committer | Markus Klotzbuecher <mk@pollux.denx.de> | 2007-09-17 17:12:45 +0200 |
| commit | f930922f061ea7bf585296859d1c14194c24b840 (patch) | |
| tree | c46b9f120f7c55f5baf8b6ac3048ba759e10a512 /cpu/arm926ejs/davinci/reset.S | |
| parent | 97213f32416ead885deafea86774e912ffd60ad0 (diff) | |
| parent | 67c31036acaaaa992fc346cc89db0909a7e733c4 (diff) | |
| download | u-boot-imx-f930922f061ea7bf585296859d1c14194c24b840.zip u-boot-imx-f930922f061ea7bf585296859d1c14194c24b840.tar.gz u-boot-imx-f930922f061ea7bf585296859d1c14194c24b840.tar.bz2 | |
Merge with git://www.denx.de/git/u-boot.git
Diffstat (limited to 'cpu/arm926ejs/davinci/reset.S')
| -rw-r--r-- | cpu/arm926ejs/davinci/reset.S | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/cpu/arm926ejs/davinci/reset.S b/cpu/arm926ejs/davinci/reset.S new file mode 100644 index 0000000..a687d44 --- /dev/null +++ b/cpu/arm926ejs/davinci/reset.S @@ -0,0 +1,77 @@ +/* + * Processor reset using WDT for TI TMS320DM644x SoC. + * + * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> + * + * ----------------------------------------------------- + * + * 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 + */ + +.globl reset_cpu +reset_cpu: + ldr r0, WDT_TGCR + mov r1, $0x08 + str r1, [r0] + ldr r1, [r0] + orr r1, r1, $0x03 + str r1, [r0] + mov r1, $0 + ldr r0, WDT_TIM12 + str r1, [r0] + ldr r0, WDT_TIM34 + str r1, [r0] + ldr r0, WDT_PRD12 + str r1, [r0] + ldr r0, WDT_PRD34 + str r1, [r0] + ldr r0, WDT_TCR + ldr r1, [r0] + orr r1, r1, $0x40 + str r1, [r0] + ldr r0, WDT_WDTCR + ldr r1, [r0] + orr r1, r1, $0x4000 + str r1, [r0] + ldr r1, WDTCR_VAL1 + str r1, [r0] + ldr r1, WDTCR_VAL2 + str r1, [r0] + nop + nop + nop + nop +reset_cpu_loop: + b reset_cpu_loop + +WDT_TGCR: + .word 0x01c21c24 +WDT_TIM12: + .word 0x01c21c10 +WDT_TIM34: + .word 0x01c21c14 +WDT_PRD12: + .word 0x01c21c18 +WDT_PRD34: + .word 0x01c21c1c +WDT_TCR: + .word 0x01c21c20 +WDT_WDTCR: + .word 0x01c21c28 +WDTCR_VAL1: + .word 0xa5c64000 +WDTCR_VAL2: + .word 0xda7e4000 |