diff options
Diffstat (limited to 'arch/mips/include/asm/mach-loongson32/regs-clk.h')
| -rw-r--r-- | arch/mips/include/asm/mach-loongson32/regs-clk.h | 51 |
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 */ |