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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 @@
1/*
2 * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
3 *
4 * Loongson 1 Clock Register Definitions.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 */
11
12#ifndef __ASM_MACH_LOONGSON32_REGS_CLK_H
13#define __ASM_MACH_LOONGSON32_REGS_CLK_H
14
15#define LS1X_CLK_REG(x) \
16 ((void __iomem *)KSEG1ADDR(LS1X_CLK_BASE + (x)))
17
18#define LS1X_CLK_PLL_FREQ LS1X_CLK_REG(0x0)
19#define LS1X_CLK_PLL_DIV LS1X_CLK_REG(0x4)
20
21/* Clock PLL Divisor Register Bits */
22#define DIV_DC_EN (0x1 << 31)
23#define DIV_DC_RST (0x1 << 30)
24#define DIV_CPU_EN (0x1 << 25)
25#define DIV_CPU_RST (0x1 << 24)
26#define DIV_DDR_EN (0x1 << 19)
27#define DIV_DDR_RST (0x1 << 18)
28#define RST_DC_EN (0x1 << 5)
29#define RST_DC (0x1 << 4)
30#define RST_DDR_EN (0x1 << 3)
31#define RST_DDR (0x1 << 2)
32#define RST_CPU_EN (0x1 << 1)
33#define RST_CPU 0x1
34
35#define DIV_DC_SHIFT 26
36#define DIV_CPU_SHIFT 20
37#define DIV_DDR_SHIFT 14
38
39#define DIV_DC_WIDTH 4
40#define DIV_CPU_WIDTH 4
41#define DIV_DDR_WIDTH 4
42
43#define BYPASS_DC_SHIFT 12
44#define BYPASS_DDR_SHIFT 10
45#define BYPASS_CPU_SHIFT 8
46
47#define BYPASS_DC_WIDTH 1
48#define BYPASS_DDR_WIDTH 1
49#define BYPASS_CPU_WIDTH 1
50
51#endif /* __ASM_MACH_LOONGSON32_REGS_CLK_H */