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Diffstat (limited to 'arch/mips/include/asm/mach-loongson32/regs-clk.h')
-rw-r--r--arch/mips/include/asm/mach-loongson32/regs-clk.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-loongson32/regs-clk.h b/arch/mips/include/asm/mach-loongson32/regs-clk.h
new file mode 100644
index 000000000000..1f5a715ac841
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson32/regs-clk.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
+ *
+ * Loongson 1 Clock Register Definitions.
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_LOONGSON32_REGS_CLK_H
+#define __ASM_MACH_LOONGSON32_REGS_CLK_H
+
+#define LS1X_CLK_REG(x) \
+ ((void __iomem *)KSEG1ADDR(LS1X_CLK_BASE + (x)))
+
+#define LS1X_CLK_PLL_FREQ LS1X_CLK_REG(0x0)
+#define LS1X_CLK_PLL_DIV LS1X_CLK_REG(0x4)
+
+/* Clock PLL Divisor Register Bits */
+#define DIV_DC_EN (0x1 << 31)
+#define DIV_DC_RST (0x1 << 30)
+#define DIV_CPU_EN (0x1 << 25)
+#define DIV_CPU_RST (0x1 << 24)
+#define DIV_DDR_EN (0x1 << 19)
+#define DIV_DDR_RST (0x1 << 18)
+#define RST_DC_EN (0x1 << 5)
+#define RST_DC (0x1 << 4)
+#define RST_DDR_EN (0x1 << 3)
+#define RST_DDR (0x1 << 2)
+#define RST_CPU_EN (0x1 << 1)
+#define RST_CPU 0x1
+
+#define DIV_DC_SHIFT 26
+#define DIV_CPU_SHIFT 20
+#define DIV_DDR_SHIFT 14
+
+#define DIV_DC_WIDTH 4
+#define DIV_CPU_WIDTH 4
+#define DIV_DDR_WIDTH 4
+
+#define BYPASS_DC_SHIFT 12
+#define BYPASS_DDR_SHIFT 10
+#define BYPASS_CPU_SHIFT 8
+
+#define BYPASS_DC_WIDTH 1
+#define BYPASS_DDR_WIDTH 1
+#define BYPASS_CPU_WIDTH 1
+
+#endif /* __ASM_MACH_LOONGSON32_REGS_CLK_H */