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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-12-09 17:14:38 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-12-09 17:14:38 +1100
commitbcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71 (patch)
tree2f6dffd2d3e4dd67355a224de7e7a960335a92fd /arch/arm/plat-omap/include/plat/system.h
parent11c34c7deaeeebcee342cbc35e1bb2a6711b2431 (diff)
parent3ff6a468b45b5dfeb0e903e56f4eb27d34b2437c (diff)
downloadlwn-bcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71.tar.gz
lwn-bcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71.zip
Merge commit 'origin/master' into next
Conflicts: include/linux/kvm.h
Diffstat (limited to 'arch/arm/plat-omap/include/plat/system.h')
-rw-r--r--arch/arm/plat-omap/include/plat/system.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/system.h b/arch/arm/plat-omap/include/plat/system.h
new file mode 100644
index 000000000000..c58a4ef42a45
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/system.h
@@ -0,0 +1,51 @@
+/*
+ * Copied from arch/arm/mach-sa1100/include/mach/system.h
+ * Copyright (c) 1999 Nicolas Pitre <nico@fluxnic.net>
+ */
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+#include <linux/clk.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+#include <plat/prcm.h>
+
+#ifndef CONFIG_MACH_VOICEBLUE
+#define voiceblue_reset() do {} while (0)
+#else
+extern void voiceblue_reset(void);
+#endif
+
+static inline void arch_idle(void)
+{
+ cpu_do_idle();
+}
+
+static inline void omap1_arch_reset(char mode)
+{
+ /*
+ * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
+ * "Global Software Reset Affects Traffic Controller Frequency".
+ */
+ if (cpu_is_omap5912()) {
+ omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4),
+ DPLL_CTL);
+ omap_writew(0x8, ARM_RSTCT1);
+ }
+
+ if (machine_is_voiceblue())
+ voiceblue_reset();
+ else
+ omap_writew(1, ARM_RSTCT1);
+}
+
+static inline void arch_reset(char mode, const char *cmd)
+{
+ if (!cpu_class_is_omap2())
+ omap1_arch_reset(mode);
+ else
+ omap_prcm_arch_reset(mode);
+}
+
+#endif