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- /*
- * OMAP4 PRM module functions
- *
- * Copyright (C) 2011-2012 Texas Instruments, Inc.
- * Copyright (C) 2010 Nokia Corporation
- * Benoît Cousson
- * Paul Walmsley
- * Rajendra Nayak <rnayak@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #include <linux/kernel.h>
- #include <linux/delay.h>
- #include <linux/errno.h>
- #include <linux/err.h>
- #include <linux/io.h>
- #include "soc.h"
- #include "iomap.h"
- #include "common.h"
- #include "vp.h"
- #include "prm44xx.h"
- #include "prm-regbits-44xx.h"
- #include "prcm44xx.h"
- #include "prminst44xx.h"
- #include "powerdomain.h"
- /* Static data */
- static const struct omap_prcm_irq omap4_prcm_irqs[] = {
- OMAP_PRCM_IRQ("wkup", 0, 0),
- OMAP_PRCM_IRQ("io", 9, 1),
- };
- static struct omap_prcm_irq_setup omap4_prcm_irq_setup = {
- .ack = OMAP4_PRM_IRQSTATUS_MPU_OFFSET,
- .mask = OMAP4_PRM_IRQENABLE_MPU_OFFSET,
- .nr_regs = 2,
- .irqs = omap4_prcm_irqs,
- .nr_irqs = ARRAY_SIZE(omap4_prcm_irqs),
- .irq = 11 + OMAP44XX_IRQ_GIC_START,
- .read_pending_irqs = &omap44xx_prm_read_pending_irqs,
- .ocp_barrier = &omap44xx_prm_ocp_barrier,
- .save_and_clear_irqen = &omap44xx_prm_save_and_clear_irqen,
- .restore_irqen = &omap44xx_prm_restore_irqen,
- };
- /*
- * omap44xx_prm_reset_src_map - map from bits in the PRM_RSTST
- * hardware register (which are specific to OMAP44xx SoCs) to reset
- * source ID bit shifts (which is an OMAP SoC-independent
- * enumeration)
- */
- static struct prm_reset_src_map omap44xx_prm_reset_src_map[] = {
- { OMAP4430_GLOBAL_WARM_SW_RST_SHIFT,
- OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT },
- { OMAP4430_GLOBAL_COLD_RST_SHIFT,
- OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT },
- { OMAP4430_MPU_SECURITY_VIOL_RST_SHIFT,
- OMAP_SECU_VIOL_RST_SRC_ID_SHIFT },
- { OMAP4430_MPU_WDT_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT },
- { OMAP4430_SECURE_WDT_RST_SHIFT, OMAP_SECU_WD_RST_SRC_ID_SHIFT },
- { OMAP4430_EXTERNAL_WARM_RST_SHIFT, OMAP_EXTWARM_RST_SRC_ID_SHIFT },
- { OMAP4430_VDD_MPU_VOLT_MGR_RST_SHIFT,
- OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT },
- { OMAP4430_VDD_IVA_VOLT_MGR_RST_SHIFT,
- OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT },
- { OMAP4430_VDD_CORE_VOLT_MGR_RST_SHIFT,
- OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT },
- { OMAP4430_ICEPICK_RST_SHIFT, OMAP_ICEPICK_RST_SRC_ID_SHIFT },
- { OMAP4430_C2C_RST_SHIFT, OMAP_C2C_RST_SRC_ID_SHIFT },
- { -1, -1 },
- };
- /* PRM low-level functions */
- /* Read a register in a CM/PRM instance in the PRM module */
- u32 omap4_prm_read_inst_reg(s16 inst, u16 reg)
- {
- return __raw_readl(OMAP44XX_PRM_REGADDR(inst, reg));
- }
- /* Write into a register in a CM/PRM instance in the PRM module */
- void omap4_prm_write_inst_reg(u32 val, s16 inst, u16 reg)
- {
- __raw_writel(val, OMAP44XX_PRM_REGADDR(inst, reg));
- }
- /* Read-modify-write a register in a PRM module. Caller must lock */
- u32 omap4_prm_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg)
- {
- u32 v;
- v = omap4_prm_read_inst_reg(inst, reg);
- v &= ~mask;
- v |= bits;
- omap4_prm_write_inst_reg(v, inst, reg);
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