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This PR adds support for the Allwinner A527 Arm64 SoC. This will be used by the upcoming port of NuttX for PINE64 Yuzuki Avaota-A1 SBC. Most of the code was derived from NuttX for QEMU Arm64 Kernel Build qemu-armv8a:knsh. The modified code is explained here: https://lupyuen.github.io/articles/avaota#appendix-port-nuttx-to-avaota-a1 Modified Files in arch/arm64: Kconfig: Added ARCH_CHIP_SUNXI for Allwinner 64-bit SoCs. Added ARCH_CHIP_SUNXI_A527 for A527 SoC. New Files in arch/arm64: include/a527/chip.h: A527 Definitions include/a527/irq.h: External Interrupts src/a527/chip.h: Memory Map src/a527/a527_boot.c, a527_boot.h: Startup Code src/a527/a527_initialize.c: Power Management src/a527/a527_lowputc.S: UART Output src/a527/a527_serial.c: Serial Driver src/a527/a527_textheap.c: Text Heap src/a527/a527_timer.c: A527 Timer src/a527/Kconfig: A527 Config src/a527/Make.defs, CMakeLists.txt: Makefiles Signed-off-by: Lup Yuen Lee <luppy@appkaki.com>
77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
/****************************************************************************
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* arch/arm64/include/a527/chip.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM64_INCLUDE_A527_CHIP_H
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#define __ARCH_ARM64_INCLUDE_A527_CHIP_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Number of bytes in x kibibytes/mebibytes/gibibytes */
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#define KB(x) ((x) << 10)
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#define MB(x) (KB(x) << 10)
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#define GB(x) (MB(UINT64_C(x)) << 10)
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/* Generic Interrupt Controller v3: Distributor and Redistributor */
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#define CONFIG_GICD_BASE 0x3400000
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#define CONFIG_GICR_BASE 0x3460000
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#define CONFIG_GICR_OFFSET 0x20000
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/* Memory Map: RAM and I/O Memory */
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#define CONFIG_RAMBANK1_ADDR 0x40000000
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#define CONFIG_RAMBANK1_SIZE MB(128)
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#define CONFIG_DEVICEIO_BASEADDR 0x00000000
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#define CONFIG_DEVICEIO_SIZE MB(1024)
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/* Bootloader loads NuttX at this address */
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#define CONFIG_LOAD_BASE 0x40800000
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/* GIC Cluster Mapping */
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#define MPID_TO_CLUSTER_ID(mpid) ((mpid) & ~0xff)
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/****************************************************************************
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* Assembly Macros
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****************************************************************************/
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#ifdef __ASSEMBLY__
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.macro get_cpu_id xreg0
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mrs \xreg0, mpidr_el1
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ubfx \xreg0, \xreg0, #0, #8
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.endm
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM64_INCLUDE_A527_CHIP_H */
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