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2ace831f PW |
1 | /* |
2 | * OMAP4 PRCM_MPU module functions | |
3 | * | |
4 | * Copyright (C) 2009 Nokia Corporation | |
5 | * Paul Walmsley | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/errno.h> | |
15 | #include <linux/err.h> | |
16 | #include <linux/io.h> | |
17 | ||
18 | #include <plat/common.h> | |
19 | ||
20 | #include "prcm_mpu44xx.h" | |
21 | #include "cm-regbits-44xx.h" | |
22 | ||
23 | /* PRCM_MPU low-level functions */ | |
24 | ||
25 | u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg) | |
26 | { | |
27 | return __raw_readl(OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); | |
28 | } | |
29 | ||
30 | void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg) | |
31 | { | |
32 | __raw_writel(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); | |
33 | } | |
34 | ||
35 | u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg) | |
36 | { | |
37 | u32 v; | |
38 | ||
39 | v = omap4_prcm_mpu_read_inst_reg(inst, reg); | |
40 | v &= ~mask; | |
41 | v |= bits; | |
42 | omap4_prcm_mpu_write_inst_reg(v, inst, reg); | |
43 | ||
44 | return v; | |
45 | } |