| Paul Walmsley | 2ace831 | 2010-12-21 21:05:14 -0700 | [diff] [blame] | 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 | } |