Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright (C)2004-2010 Freescale Semiconductor, Inc. All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/irqchip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/irqdomain.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <asm/mach/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <asm/exception.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include "hardware.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include "irq-common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  *****************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  * TZIC Registers                        *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  *****************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define TZIC_INTCNTL	0x0000	/* Control register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define TZIC_INTTYPE	0x0004	/* Controller Type register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define TZIC_IMPID	0x0008	/* Distributor Implementer Identification */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define TZIC_PRIOMASK	0x000C	/* Priority Mask Reg */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define TZIC_SYNCCTRL	0x0010	/* Synchronizer Control register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define TZIC_DSMINT	0x0014	/* DSM interrupt Holdoffregister */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define TZIC_INTSEC0(i)	(0x0080 + ((i) << 2)) /* Interrupt Security Reg 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define TZIC_ENSET0(i)	(0x0100 + ((i) << 2)) /* Enable Set Reg 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define TZIC_ENCLEAR0(i) (0x0180 + ((i) << 2)) /* Enable Clear Reg 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define TZIC_SRCSET0	0x0200	/* Source Set Register 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define TZIC_SRCCLAR0	0x0280	/* Source Clear Register 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define TZIC_PRIORITY0	0x0400	/* Priority Register 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define TZIC_PND0	0x0D00	/* Pending Register 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #define TZIC_HIPND(i)	(0x0D80+ ((i) << 2))	/* High Priority Pending Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) #define TZIC_WAKEUP0(i)	(0x0E00 + ((i) << 2))	/* Wakeup Config Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) #define TZIC_SWINT	0x0F00	/* Software Interrupt Rigger Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define TZIC_ID0	0x0FD0	/* Indentification Register 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) static void __iomem *tzic_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) static struct irq_domain *domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define TZIC_NUM_IRQS 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #ifdef CONFIG_FIQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) static int tzic_set_irq_fiq(unsigned int hwirq, unsigned int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	unsigned int index, mask, value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	index = hwirq >> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	if (unlikely(index >= 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	mask = 1U << (hwirq & 0x1F);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	value = imx_readl(tzic_base + TZIC_INTSEC0(index)) | mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	if (type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		value &= ~mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	imx_writel(value, tzic_base + TZIC_INTSEC0(index));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) #define tzic_set_irq_fiq NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) static void tzic_irq_suspend(struct irq_data *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	int idx = d->hwirq >> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	imx_writel(gc->wake_active, tzic_base + TZIC_WAKEUP0(idx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) static void tzic_irq_resume(struct irq_data *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	int idx = d->hwirq >> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	imx_writel(imx_readl(tzic_base + TZIC_ENSET0(idx)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		   tzic_base + TZIC_WAKEUP0(idx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) #define tzic_irq_suspend NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) #define tzic_irq_resume NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) static struct mxc_extra_irq tzic_extra_irq = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) #ifdef CONFIG_FIQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	.set_irq_fiq = tzic_set_irq_fiq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static __init void tzic_init_gc(int idx, unsigned int irq_start)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	struct irq_chip_generic *gc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	struct irq_chip_type *ct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	gc = irq_alloc_generic_chip("tzic", 1, irq_start, tzic_base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 				    handle_level_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	gc->private = &tzic_extra_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	gc->wake_enabled = IRQ_MSK(32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	ct = gc->chip_types;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	ct->chip.irq_mask = irq_gc_mask_disable_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	ct->chip.irq_unmask = irq_gc_unmask_enable_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	ct->chip.irq_set_wake = irq_gc_set_wake;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	ct->chip.irq_suspend = tzic_irq_suspend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	ct->chip.irq_resume = tzic_irq_resume;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	ct->regs.disable = TZIC_ENCLEAR0(idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	ct->regs.enable = TZIC_ENSET0(idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	irq_setup_generic_chip(gc, IRQ_MSK(32), 0, IRQ_NOREQUEST, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static void __exception_irq_entry tzic_handle_irq(struct pt_regs *regs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	u32 stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	int i, irqofs, handled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		handled = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		for (i = 0; i < 4; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 			stat = imx_readl(tzic_base + TZIC_HIPND(i)) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 				imx_readl(tzic_base + TZIC_INTSEC0(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 			while (stat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 				handled = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 				irqofs = fls(stat) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 				handle_domain_irq(domain, irqofs + i * 32, regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 				stat &= ~(1 << irqofs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	} while (handled);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)  * This function initializes the TZIC hardware and disables all the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)  * interrupts. It registers the interrupt enable and disable functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)  * to the kernel for each interrupt source.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static int __init tzic_init_dt(struct device_node *np, struct device_node *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	int irq_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	tzic_base = of_iomap(np, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	WARN_ON(!tzic_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	/* put the TZIC into the reset value with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	 * all interrupts disabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	i = imx_readl(tzic_base + TZIC_INTCNTL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	imx_writel(0x80010001, tzic_base + TZIC_INTCNTL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	imx_writel(0x1f, tzic_base + TZIC_PRIOMASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	imx_writel(0x02, tzic_base + TZIC_SYNCCTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	for (i = 0; i < 4; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		imx_writel(0xFFFFFFFF, tzic_base + TZIC_INTSEC0(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	/* disable all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	for (i = 0; i < 4; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		imx_writel(0xFFFFFFFF, tzic_base + TZIC_ENCLEAR0(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	/* all IRQ no FIQ Warning :: No selection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	irq_base = irq_alloc_descs(-1, 0, TZIC_NUM_IRQS, numa_node_id());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	WARN_ON(irq_base < 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	domain = irq_domain_add_legacy(np, TZIC_NUM_IRQS, irq_base, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 				       &irq_domain_simple_ops, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	WARN_ON(!domain);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	for (i = 0; i < 4; i++, irq_base += 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		tzic_init_gc(i, irq_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	set_handle_irq(tzic_handle_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #ifdef CONFIG_FIQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	/* Initialize FIQ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	init_FIQ(FIQ_START);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	pr_info("TrustZone Interrupt Controller (TZIC) initialized\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) IRQCHIP_DECLARE(tzic, "fsl,tzic", tzic_init_dt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)  * tzic_enable_wake() - enable wakeup interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)  * @return			0 if successful; non-zero otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)  * This function provides an interrupt synchronization point that is required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)  * by tzic enabled platforms before entering imx specific low power modes (ie,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)  * those low power modes beyond the WAIT_CLOCKED basic ARM WFI only mode).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) int tzic_enable_wake(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	imx_writel(1, tzic_base + TZIC_DSMINT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	if (unlikely(imx_readl(tzic_base + TZIC_DSMINT) == 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	for (i = 0; i < 4; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		imx_writel(imx_readl(tzic_base + TZIC_ENSET0(i)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			   tzic_base + TZIC_WAKEUP0(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }