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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
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2 | /* |
3 | * OMAP4 PRCM_MPU module functions | |
4 | * | |
5 | * Copyright (C) 2009 Nokia Corporation | |
6 | * Paul Walmsley | |
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7 | */ |
8 | ||
9 | #include <linux/kernel.h> | |
10 | #include <linux/types.h> | |
11 | #include <linux/errno.h> | |
12 | #include <linux/err.h> | |
13 | #include <linux/io.h> | |
14 | ||
ee0839c2 | 15 | #include "iomap.h" |
4e65331c | 16 | #include "common.h" |
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17 | #include "prcm_mpu44xx.h" |
18 | #include "cm-regbits-44xx.h" | |
19 | ||
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20 | /* |
21 | * prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP | |
22 | * block registers | |
23 | */ | |
90129336 | 24 | struct omap_domain_base prcm_mpu_base; |
d9a16f9a | 25 | |
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26 | /* PRCM_MPU low-level functions */ |
27 | ||
28 | u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg) | |
29 | { | |
edfaf05c | 30 | return readl_relaxed(OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); |
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31 | } |
32 | ||
33 | void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg) | |
34 | { | |
edfaf05c | 35 | writel_relaxed(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); |
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36 | } |
37 | ||
38 | u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg) | |
39 | { | |
40 | u32 v; | |
41 | ||
42 | v = omap4_prcm_mpu_read_inst_reg(inst, reg); | |
43 | v &= ~mask; | |
44 | v |= bits; | |
45 | omap4_prcm_mpu_write_inst_reg(v, inst, reg); | |
46 | ||
47 | return v; | |
48 | } | |
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49 | |
50 | /** | |
51 | * omap2_set_globals_prcm_mpu - set the MPU PRCM base address (for early use) | |
52 | * @prcm_mpu: PRCM_MPU base virtual address | |
53 | * | |
54 | * XXX Will be replaced when the PRM/CM drivers are completed. | |
55 | */ | |
56 | void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu) | |
57 | { | |
90129336 | 58 | prcm_mpu_base.va = prcm_mpu; |
d9a16f9a | 59 | } |