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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-ixp2000/system.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-arm/arch-ixp2000/system.h')
-rw-r--r--include/asm-arm/arch-ixp2000/system.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp2000/system.h b/include/asm-arm/arch-ixp2000/system.h
new file mode 100644
index 000000000000..4f489cc0dfa5
--- /dev/null
+++ b/include/asm-arm/arch-ixp2000/system.h
@@ -0,0 +1,54 @@
1/*
2 * linux/include/asm-arm/arch-ixp2000/system.h
3 *
4 * Copyright (C) 2002 Intel Corp.
5 * Copyricht (C) 2003-2005 MontaVista Software, Inc.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <asm/hardware.h>
13#include <asm/mach-types.h>
14
15static inline void arch_idle(void)
16{
17 cpu_do_idle();
18}
19
20static inline void arch_reset(char mode)
21{
22 local_irq_disable();
23
24 /*
25 * Reset flash banking register so that we are pointing at
26 * RedBoot bank.
27 */
28 if (machine_is_ixdp2401()) {
29 *IXDP2X01_CPLD_FLASH_REG = ((0 >> IXDP2X01_FLASH_WINDOW_BITS)
30 | IXDP2X01_CPLD_FLASH_INTERN);
31 *IXDP2X01_CPLD_RESET_REG = 0xffffffff;
32 }
33
34 /*
35 * On IXDP2801 we need to write this magic sequence to the CPLD
36 * to cause a complete reset of the CPU and all external devices
37 * and moves the flash bank register back to 0.
38 */
39 if (machine_is_ixdp2801()) {
40 unsigned long reset_reg = *IXDP2X01_CPLD_RESET_REG;
41 reset_reg = 0x55AA0000 | (reset_reg & 0x0000FFFF);
42 *IXDP2X01_CPLD_RESET_REG = reset_reg;
43 mb();
44 *IXDP2X01_CPLD_RESET_REG = 0x80000000;
45 }
46
47 /*
48 * We do a reset all if we are PCI master. We could be a slave and we
49 * don't want to do anything funky on the PCI bus.
50 */
51 if (*IXP2000_STRAP_OPTIONS & CFG_PCI_BOOT_HOST) {
52 *(IXP2000_RESET0) |= (RSTALL);
53 }
54}