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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-ixp2000/system.h
Linux-2.6.12-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 00000000000..4f489cc0dfa
--- /dev/null
+++ b/include/asm-arm/arch-ixp2000/system.h
@@ -0,0 +1,54 @@
+/*
+ * linux/include/asm-arm/arch-ixp2000/system.h
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyricht (C) 2003-2005 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+
+static inline void arch_idle(void)
+{
+ cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+ local_irq_disable();
+
+ /*
+ * Reset flash banking register so that we are pointing at
+ * RedBoot bank.
+ */
+ if (machine_is_ixdp2401()) {
+ *IXDP2X01_CPLD_FLASH_REG = ((0 >> IXDP2X01_FLASH_WINDOW_BITS)
+ | IXDP2X01_CPLD_FLASH_INTERN);
+ *IXDP2X01_CPLD_RESET_REG = 0xffffffff;
+ }
+
+ /*
+ * On IXDP2801 we need to write this magic sequence to the CPLD
+ * to cause a complete reset of the CPU and all external devices
+ * and moves the flash bank register back to 0.
+ */
+ if (machine_is_ixdp2801()) {
+ unsigned long reset_reg = *IXDP2X01_CPLD_RESET_REG;
+ reset_reg = 0x55AA0000 | (reset_reg & 0x0000FFFF);
+ *IXDP2X01_CPLD_RESET_REG = reset_reg;
+ mb();
+ *IXDP2X01_CPLD_RESET_REG = 0x80000000;
+ }
+
+ /*
+ * We do a reset all if we are PCI master. We could be a slave and we
+ * don't want to do anything funky on the PCI bus.
+ */
+ if (*IXP2000_STRAP_OPTIONS & CFG_PCI_BOOT_HOST) {
+ *(IXP2000_RESET0) |= (RSTALL);
+ }
+}