65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/*
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* Copyright (c) 2021 Nordic Semiconductor ASA
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* Copyright (c) 2021 Yonatan Schachter
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief System/hardware module for Raspberry Pi RP2040 family processor
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*
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* This module provides routines to initialize and support board-level hardware
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* for the Raspberry Pi RP2040 family processor.
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*/
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#include <kernel.h>
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#include <init.h>
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#include <logging/log.h>
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#include <hardware/regs/resets.h>
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#include <hardware/clocks.h>
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#include <hardware/resets.h>
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#ifdef CONFIG_RUNTIME_NMI
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extern void z_arm_nmi_init(void);
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#define NMI_INIT() z_arm_nmi_init()
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#else
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#define NMI_INIT()
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#endif
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LOG_MODULE_REGISTER(soc, CONFIG_SOC_LOG_LEVEL);
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static int rp2040_init(const struct device *arg)
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{
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uint32_t key;
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reset_block(~(RESETS_RESET_IO_QSPI_BITS | RESETS_RESET_PADS_QSPI_BITS |
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RESETS_RESET_PLL_USB_BITS | RESETS_RESET_PLL_SYS_BITS));
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unreset_block_wait(RESETS_RESET_BITS &
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~(RESETS_RESET_ADC_BITS | RESETS_RESET_RTC_BITS |
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RESETS_RESET_SPI0_BITS | RESETS_RESET_SPI1_BITS |
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RESETS_RESET_UART0_BITS | RESETS_RESET_UART1_BITS |
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RESETS_RESET_USBCTRL_BITS));
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clocks_init();
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unreset_block_wait(RESETS_RESET_BITS);
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ARG_UNUSED(arg);
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key = irq_lock();
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/* Install default handler that simply resets the CPU
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* if configured in the kernel, NOP otherwise
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*/
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NMI_INIT();
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irq_unlock(key);
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return 0;
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}
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SYS_INIT(rp2040_init, PRE_KERNEL_1, 0);
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