| 1 | // SPDX-License-Identifier: GPL-2.0-only |
|---|---|
| 2 | /* |
| 3 | * OMAP4 PRCM_MPU module functions |
| 4 | * |
| 5 | * Copyright (C) 2009 Nokia Corporation |
| 6 | * Paul Walmsley |
| 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 | |
| 15 | #include "iomap.h" |
| 16 | #include "common.h" |
| 17 | #include "prcm_mpu44xx.h" |
| 18 | #include "cm-regbits-44xx.h" |
| 19 | |
| 20 | /* |
| 21 | * prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP |
| 22 | * block registers |
| 23 | */ |
| 24 | struct omap_domain_base prcm_mpu_base; |
| 25 | |
| 26 | /* PRCM_MPU low-level functions */ |
| 27 | |
| 28 | u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg) |
| 29 | { |
| 30 | return readl_relaxed(OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); |
| 31 | } |
| 32 | |
| 33 | void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg) |
| 34 | { |
| 35 | writel_relaxed(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * omap2_set_globals_prcm_mpu - set the MPU PRCM base address (for early use) |
| 40 | * @prcm_mpu: PRCM_MPU base virtual address |
| 41 | * |
| 42 | * XXX Will be replaced when the PRM/CM drivers are completed. |
| 43 | */ |
| 44 | void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu) |
| 45 | { |
| 46 | prcm_mpu_base.va = prcm_mpu; |
| 47 | } |
| 48 |