2  * IMX7 System Reset Controller
4  * Copyright (c) 2023 Jean-Christophe Dubois <jcd@tribudubois.net>
7  * See the COPYING file in the top-level directory.
16 #include "qemu/main-loop.h"
18 #include "target/arm/arm-powerctl.h"
97     memset(s->regs, 0, sizeof(s->regs));  in imx7_src_reset()
99     /* Set reset values */  in imx7_src_reset()
100     s->regs[SRC_SCR] = 0xA0;  in imx7_src_reset()
101     s->regs[SRC_SRSR] = 0x1;  in imx7_src_reset()
102     s->regs[SRC_SIMR] = 0x1F;  in imx7_src_reset()
112         value = s->regs[index];  in imx7_src_read()
125  * The reset is asynchronous so we need to defer clearing the reset
137     IMX7SRCState *s = ri->s;  in imx7_clear_reset_bit()
141     s->regs[SRC_A7RCR0] = deposit32(s->regs[SRC_A7RCR0], ri->reset_bit, 1, 0);  in imx7_clear_reset_bit()
143     trace_imx7_src_write(imx7_src_reg_name(SRC_A7RCR0), s->regs[SRC_A7RCR0]);  in imx7_clear_reset_bit()
160     ri->s = s;  in imx7_defer_clear_reset_bit()
161     ri->reset_bit = reset_shift;  in imx7_defer_clear_reset_bit()
181     trace_imx7_src_write(imx7_src_reg_name(SRC_A7RCR0), s->regs[SRC_A7RCR0]);  in imx7_src_write()
183     change_mask = s->regs[index] ^ (uint32_t)current_value;  in imx7_src_write()
195         s->regs[index] = current_value;  in imx7_src_write()
199          * On real hardware when the system reset controller starts a  in imx7_src_write()
210                 arm_set_cpu_on(1, s->regs[SRC_GPR3], s->regs[SRC_GPR4],  in imx7_src_write()
216             /* We clear the reset bits as the processor changed state */  in imx7_src_write()
220         s->regs[index] = current_value;  in imx7_src_write()
223         s->regs[index] = current_value;  in imx7_src_write()
249     memory_region_init_io(&s->iomem, OBJECT(dev), &imx7_src_ops, s,  in imx7_src_realize()
251     sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);  in imx7_src_realize()
258     dc->realize = imx7_src_realize;  in imx7_src_class_init()
260     dc->vmsd = &vmstate_imx7_src;  in imx7_src_class_init()
261     dc->desc = "i.MX6 System Reset Controller";  in imx7_src_class_init()