projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| ee0839c2 | 18 | #include "iomap.h" |
| 4e65331c | 19 | #include "common.h" |
| 2ace831f PW |
20 | #include "prcm_mpu44xx.h" |
| 21 | #include "cm-regbits-44xx.h" | |
| 22 | ||
| d9a16f9a PW |
23 | /* |
| 24 | * prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP | |
| 25 | * block registers | |
| 26 | */ | |
| 27 | void __iomem *prcm_mpu_base; | |
| 28 | ||
| 2ace831f PW |
29 | /* PRCM_MPU low-level functions */ |
| 30 | ||
| 31 | u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg) | |
| 32 | { | |
| 33 | return __raw_readl(OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); | |
| 34 | } | |
| 35 | ||
| 36 | void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg) | |
| 37 | { | |
| 38 | __raw_writel(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); | |
| 39 | } | |
| 40 | ||
| 41 | u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg) | |
| 42 | { | |
| 43 | u32 v; | |
| 44 | ||
| 45 | v = omap4_prcm_mpu_read_inst_reg(inst, reg); | |
| 46 | v &= ~mask; | |
| 47 | v |= bits; | |
| 48 | omap4_prcm_mpu_write_inst_reg(v, inst, reg); | |
| 49 | ||
| 50 | return v; | |
| 51 | } | |
| d9a16f9a PW |
52 | |
| 53 | /** | |
| 54 | * omap2_set_globals_prcm_mpu - set the MPU PRCM base address (for early use) | |
| 55 | * @prcm_mpu: PRCM_MPU base virtual address | |
| 56 | * | |
| 57 | * XXX Will be replaced when the PRM/CM drivers are completed. | |
| 58 | */ | |
| 59 | void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu) | |
| 60 | { | |
| 61 | prcm_mpu_base = prcm_mpu; | |
| 62 | } |