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arch/arm64/a527: Add support for Allwinner A527 SoC
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>
This commit is contained in:
Lup Yuen Lee
committed by
Alin Jerpelea
Alin Jerpelea
parent
99067a6974
commit
9d80d6bb4f
@@ -124,6 +124,16 @@ config ARCH_CHIP_BCM2711
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---help---
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Broadcom BCM2711 quad-core ARM Cortex A72
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config ARCH_CHIP_SUNXI
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bool "Allwinner sunxi 64-bit SoC Family"
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select ARCH_HAVE_ADDRENV
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select ARCH_HAVE_RESET
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select ARCH_HAVE_IRQTRIGGER
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select ARCH_NEED_ADDRENV_MAPPING
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select ARM64_HAVE_PSCI
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---help---
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Allwinner sunxi 64-bit SoC Family
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config ARCH_CHIP_ARM64_CUSTOM
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bool "Custom ARM64 chip"
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select ARCH_CHIP_CUSTOM
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@@ -132,6 +142,28 @@ config ARCH_CHIP_ARM64_CUSTOM
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endchoice # ARM64 chip selection
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if ARCH_CHIP_SUNXI
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choice
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prompt "Allwinner sunxi 64-bit SoC selection"
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default ARCH_CHIP_SUNXI_A527
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config ARCH_CHIP_SUNXI_A527
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bool "Allwinner A527"
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select ARCH_CORTEX_A55
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select ARCH_HAVE_MULTICPU
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select ARMV8A_HAVE_GICv3
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select ARCH_HAVE_ELF_EXECUTABLE
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select ARCH_HAVE_POWEROFF
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select ARCH_HAVE_TEXT_HEAP
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select ARM64_HAVE_PSCI
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---help---
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Allwinner A527 SoC
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endchoice # Allwinner sunxi 64-bit SoC selection
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endif # ARCH_CHIP_SUNXI
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config ARCH_ARMV8A
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bool
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default n
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@@ -325,6 +357,7 @@ config ARCH_FAMILY
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config ARCH_CHIP
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string
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default "a64" if ARCH_CHIP_A64
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default "a527" if ARCH_CHIP_SUNXI_A527
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default "rk3399" if ARCH_CHIP_RK3399
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default "zynq-mpsoc" if ARCH_CHIP_ZYNQ_MPSOC
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default "qemu" if ARCH_CHIP_QEMU
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@@ -467,6 +500,10 @@ if ARCH_CHIP_A64
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source "arch/arm64/src/a64/Kconfig"
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endif
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if ARCH_CHIP_SUNXI_A527
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source "arch/arm64/src/a527/Kconfig"
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endif
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if ARCH_CHIP_RK3399
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source "arch/arm64/src/rk3399/Kconfig"
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endif
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@@ -0,0 +1,77 @@
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/****************************************************************************
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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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@@ -0,0 +1,42 @@
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/****************************************************************************
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* arch/arm64/include/a527/irq.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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/* This file should never be included directly but, rather,
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* only indirectly through nuttx/irq.h
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*/
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#ifndef __ARCH_ARM64_INCLUDE_A527_IRQ_H
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#define __ARCH_ARM64_INCLUDE_A527_IRQ_H
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Total number of interrupts */
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#define NR_IRQS 220
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/* Map CPU MPID to Core ID */
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#define MPID_TO_CORE(mpid) (((mpid) >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK)
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#endif /* __ARCH_ARM64_INCLUDE_A527_IRQ_H */
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@@ -0,0 +1,33 @@
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# ##############################################################################
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# arch/arm64/src/a527/CMakeLists.txt
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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 contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. The ASF licenses this
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# file to you under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# 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 under
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# the License.
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#
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# ##############################################################################
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set(SRCS a527_boot.c a527_serial.c a527_timer.c)
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if(CONFIG_ARCH_EARLY_PRINT)
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list(APPEND SRCS a527_lowputc.S)
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endif()
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if(CONFIG_ARCH_USE_TEXT_HEAP)
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list(APPEND SRCS a527_textheap.c)
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endif()
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if(CONFIG_PM)
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list(APPEND SRCS a527_initialize.c)
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endif()
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target_sources(arch PRIVATE ${SRCS})
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@@ -0,0 +1,38 @@
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############################################################################
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# arch/arm64/src/a527/Make.defs
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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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include common/Make.defs
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# C Source Files specific to SoC
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CHIP_CSRCS = a527_boot.c a527_serial.c a527_timer.c
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ifeq ($(CONFIG_ARCH_EARLY_PRINT),y)
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CHIP_ASRCS = a527_lowputc.S
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endif
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ifeq ($(CONFIG_ARCH_USE_TEXT_HEAP),y)
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CHIP_CSRCS += a527_textheap.c
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endif
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ifeq ($(CONFIG_PM), y)
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CHIP_CSRCS += a527_initialize.c
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endif
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@@ -0,0 +1,268 @@
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/****************************************************************************
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* arch/arm64/src/a527/a527_boot.c
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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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/compiler.h>
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#include <nuttx/cache.h>
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#include <nuttx/syslog/syslog_rpmsg.h>
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#include <arch/chip/chip.h>
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#include <arch/board/board_memorymap.h>
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#ifdef CONFIG_SMP
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#include "arm64_smp.h"
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#endif
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#include "arm64_arch.h"
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#include "arm64_internal.h"
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#include "arm64_mmu.h"
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#include "a527_boot.h"
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* MMU Memory Regions for I/O Memory and RAM */
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static const struct arm_mmu_region g_mmu_regions[] =
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{
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MMU_REGION_FLAT_ENTRY("DEVICE_REGION",
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CONFIG_DEVICEIO_BASEADDR, CONFIG_DEVICEIO_SIZE,
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MT_DEVICE_NGNRNE | MT_RW | MT_SECURE),
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MMU_REGION_FLAT_ENTRY("DRAM0_S0",
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CONFIG_RAMBANK1_ADDR, CONFIG_RAMBANK1_SIZE,
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MT_NORMAL | MT_RW | MT_SECURE),
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};
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const struct arm_mmu_config g_mmu_config =
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{
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.num_regions = nitems(g_mmu_regions),
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.mmu_regions = g_mmu_regions,
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: a527_copy_overlap
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*
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* Description:
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* Copy an overlapping memory region. dest overlaps with src + count.
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*
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* Input Parameters:
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* dest - Destination address
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* src - Source address
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* count - Number of bytes to copy
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*
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****************************************************************************/
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static void a527_copy_overlap(uint8_t *dest, const uint8_t *src,
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size_t count)
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{
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uint8_t *d = dest + count - 1;
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const uint8_t *s = src + count - 1;
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if (dest <= src)
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{
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_err("dest and src should overlap");
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PANIC();
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}
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while (count--)
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{
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volatile uint8_t c = *s; /* Prevent compiler optimization */
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*d = c;
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d--;
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s--;
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}
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}
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/****************************************************************************
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* Name: a527_copy_ramdisk
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*
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* Description:
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* Copy the RAM Disk from NuttX Image to RAM Disk Region.
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*
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****************************************************************************/
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static void a527_copy_ramdisk(void)
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{
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const uint8_t aligned_data(8) header[8] = "-rom1fs-";
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const uint8_t *limit = (uint8_t *)g_idle_topstack + (256 * 1024);
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uint8_t *ramdisk_addr = NULL;
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uint8_t *addr;
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uint32_t size;
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/* After Idle Stack Top, search for "-rom1fs-". This is the RAM Disk
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* Address. Limit search to 256 KB after Idle Stack Top.
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*/
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binfo("_edata=%p, _sbss=%p, _ebss=%p, idlestack_top=%p\n",
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(void *)_edata, (void *)_sbss, (void *)_ebss,
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(void *)g_idle_topstack);
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for (addr = g_idle_topstack; addr < limit; addr += 8)
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{
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if (memcmp(addr, header, sizeof(header)) == 0)
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{
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ramdisk_addr = addr;
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break;
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}
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}
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/* Stop if RAM Disk is missing */
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binfo("ramdisk_addr=%p\n", ramdisk_addr);
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if (ramdisk_addr == NULL)
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{
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_err("Missing RAM Disk. Check the initrd padding.");
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PANIC();
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}
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/* Read the Filesystem Size from the next 4 bytes (Big Endian) */
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size = (ramdisk_addr[8] << 24) + (ramdisk_addr[9] << 16) +
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(ramdisk_addr[10] << 8) + ramdisk_addr[11] + 0x1f0;
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binfo("size=%d\n", size);
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/* Filesystem Size must be less than RAM Disk Memory Region */
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if (size > (size_t)__ramdisk_size)
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{
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_err("RAM Disk Region too small. Increase by %lu bytes.\n",
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size - (size_t)__ramdisk_size);
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PANIC();
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}
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/* Copy the RAM Disk from NuttX Image to RAM Disk Region.
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* __ramdisk_start overlaps with ramdisk_addr + size.
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*/
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a527_copy_overlap(__ramdisk_start, ramdisk_addr, size);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#ifdef CONFIG_SMP
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/****************************************************************************
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* Name: arm64_get_mpid
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*
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* Description:
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* This function maps the CPU Index to CPU MPID, by reading the mpidr_el1
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* register. Different ARM64 Cores will define affinity differently, so
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* the mpidr_el1 value might not be the CPU Index. We need to map the
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* CPU Index to MPID and vice versa.
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*
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****************************************************************************/
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uint64_t arm64_get_mpid(int cpu)
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{
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return CORE_TO_MPID(cpu, 0);
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}
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/****************************************************************************
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* Name: arm64_get_cpuid
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*
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* Description:
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* This function maps the CPU MPID to CPU Index.
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*
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||||
****************************************************************************/
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int arm64_get_cpuid(uint64_t mpid)
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{
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return MPID_TO_CORE(mpid);
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}
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#endif /* CONFIG_SMP */
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/****************************************************************************
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* Name: arm64_el_init
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*
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* Description:
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||||
* The function is called by arm64_head.S at the early stage to:
|
||||
* - Initialize special hardware that should run at high ELs
|
||||
* - Initialize system software that should run at high ELs,
|
||||
* such as hypervisor or security firmware
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void arm64_el_init(void)
|
||||
{
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: arm64_chip_boot
|
||||
*
|
||||
* Description:
|
||||
* Complete the boot operations started in arm64_head.S
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void arm64_chip_boot(void)
|
||||
{
|
||||
/* Copy the RAM Disk */
|
||||
|
||||
a527_copy_ramdisk();
|
||||
|
||||
/* Map the RAM and I/O Memory, enable the MMU */
|
||||
|
||||
arm64_mmu_init(true);
|
||||
|
||||
/* Optional: Enable the Memory Tagging Extension */
|
||||
|
||||
arm64_enable_mte();
|
||||
|
||||
#if defined(CONFIG_ARM64_PSCI)
|
||||
/* Init the Power State Coordination Interface */
|
||||
|
||||
arm64_psci_init("smc");
|
||||
#endif
|
||||
|
||||
/* Perform board-specific device initialization. This would include
|
||||
* configuration of board specific resources such as GPIOs, LEDs, etc.
|
||||
*/
|
||||
|
||||
a527_board_initialize();
|
||||
|
||||
#ifdef USE_EARLYSERIALINIT
|
||||
/* Perform early serial initialization if we are going to use the serial
|
||||
* driver.
|
||||
*/
|
||||
|
||||
arm64_earlyserialinit();
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ARCH_PERF_EVENTS
|
||||
up_perf_init((void *)CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC);
|
||||
#endif
|
||||
}
|
||||
@@ -0,0 +1,83 @@
|
||||
/****************************************************************************
|
||||
* arch/arm64/src/a527/a527_boot.h
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM64_SRC_A527_A527_BOOT_H
|
||||
#define __ARCH_ARM64_SRC_A527_A527_BOOT_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/compiler.h>
|
||||
#include <sys/types.h>
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <arch/chip/chip.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC 62500000
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: a527_board_initialize
|
||||
*
|
||||
* Description:
|
||||
* All A527 architectures must provide the following entry point. This
|
||||
* entry point is called in the initialization phase -- after
|
||||
* a527_memory_initialize and after all memory has been configured and
|
||||
* mapped but before any devices have been initialized.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void a527_board_initialize(void);
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_ARM64_SRC_A527_A527_BOOT_H */
|
||||
@@ -0,0 +1,119 @@
|
||||
/****************************************************************************
|
||||
* arch/arm64/src/a527/a527_initialize.c
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/power/pm.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
void arm64_pminitialize(void)
|
||||
{
|
||||
pm_initialize();
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
static bool pm_idle_handler(int cpu,
|
||||
enum pm_state_e cpu_state,
|
||||
enum pm_state_e system_state)
|
||||
{
|
||||
bool first = false;
|
||||
|
||||
switch (cpu_state)
|
||||
{
|
||||
case PM_NORMAL:
|
||||
case PM_IDLE:
|
||||
case PM_STANDBY:
|
||||
case PM_SLEEP:
|
||||
|
||||
/* CPU Domain: PM Entry */
|
||||
|
||||
asm("NOP");
|
||||
|
||||
if (system_state >= PM_NORMAL)
|
||||
{
|
||||
switch (system_state)
|
||||
{
|
||||
case PM_NORMAL:
|
||||
case PM_IDLE:
|
||||
case PM_STANDBY:
|
||||
case PM_SLEEP:
|
||||
|
||||
/* System Domain: PM Entry */
|
||||
|
||||
asm("NOP");
|
||||
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
pm_idle_unlock();
|
||||
|
||||
/* Operations here should not cross cores */
|
||||
|
||||
asm("WFI");
|
||||
|
||||
first = pm_idle_lock(cpu);
|
||||
if (first)
|
||||
{
|
||||
/* System Domain: PM Exit */
|
||||
|
||||
asm("NOP");
|
||||
}
|
||||
|
||||
/* CPU Domain: PM Exit */
|
||||
|
||||
asm("NOP");
|
||||
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return first;
|
||||
}
|
||||
#else
|
||||
|
||||
static void pm_idle_handler(enum pm_state_e state)
|
||||
{
|
||||
switch (state)
|
||||
{
|
||||
default:
|
||||
asm("WFI");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void up_idle(void)
|
||||
{
|
||||
pm_idle(pm_idle_handler);
|
||||
}
|
||||
@@ -0,0 +1,80 @@
|
||||
/****************************************************************************
|
||||
* arch/arm64/src/a527/a527_lowputc.S
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/* Arm64 Wrapper for early printing */
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include "arm64_macro.inc"
|
||||
|
||||
/****************************************************************************
|
||||
* Public Symbols
|
||||
****************************************************************************/
|
||||
|
||||
.file "a527_lowputc.S"
|
||||
|
||||
/****************************************************************************
|
||||
* Assembly Macros
|
||||
****************************************************************************/
|
||||
|
||||
#define UART0_BASE_ADDRESS 0x02500000
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/* 16550 UART initialization */
|
||||
|
||||
GTEXT(arm64_earlyprintinit)
|
||||
SECTION_FUNC(text, arm64_earlyprintinit)
|
||||
ret
|
||||
|
||||
/* Wait for 16550 UART to be ready to transmit.
|
||||
* xb: Register that contains the UART Base Address
|
||||
* wt: Scratch register number
|
||||
*/
|
||||
|
||||
.macro early_uart_ready xb, wt
|
||||
1:
|
||||
ldrh \wt, [\xb, #0x14] /* UART_LSR (Line Status Register) */
|
||||
tst \wt, #0x20 /* Check THRE (TX Holding Register Empty) */
|
||||
b.eq 1b /* Wait for the UART to be ready (THRE=1) */
|
||||
.endm
|
||||
|
||||
/* 16550 UART transmit character.
|
||||
* xb: Register that contains the UART Base Address
|
||||
* wt: Register that contains the character to transmit
|
||||
*/
|
||||
|
||||
.macro early_uart_transmit xb, wt
|
||||
strb \wt, [\xb] /* -> UART_THR (TX Holding Register) */
|
||||
.endm
|
||||
|
||||
/* Print a character on the UART. This function is called by C.
|
||||
* x0: Character to print
|
||||
*/
|
||||
|
||||
GTEXT(arm64_lowputc)
|
||||
SECTION_FUNC(text, arm64_lowputc)
|
||||
ldr x15, =UART0_BASE_ADDRESS
|
||||
early_uart_ready x15, w2
|
||||
early_uart_transmit x15, w0
|
||||
ret
|
||||
@@ -0,0 +1,75 @@
|
||||
/***************************************************************************
|
||||
* arch/arm64/src/a527/a527_serial.c
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
***************************************************************************/
|
||||
|
||||
/***************************************************************************
|
||||
* Included Files
|
||||
***************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <sys/types.h>
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/serial/uart_16550.h>
|
||||
#include "arm64_internal.h"
|
||||
|
||||
#ifdef USE_SERIALDRIVER
|
||||
/***************************************************************************
|
||||
* Public Functions
|
||||
***************************************************************************/
|
||||
|
||||
/***************************************************************************
|
||||
* Name: arm64_earlyserialinit
|
||||
*
|
||||
* Description:
|
||||
* See arm64_internal.h
|
||||
*
|
||||
***************************************************************************/
|
||||
|
||||
void arm64_earlyserialinit(void)
|
||||
{
|
||||
/* Enable the console UART. The other UARTs will be initialized if and
|
||||
* when they are first opened.
|
||||
*/
|
||||
|
||||
u16550_earlyserialinit();
|
||||
}
|
||||
|
||||
/***************************************************************************
|
||||
* Name: arm64_serialinit
|
||||
*
|
||||
* Description:
|
||||
* See arm64_internal.h
|
||||
*
|
||||
***************************************************************************/
|
||||
|
||||
void arm64_serialinit(void)
|
||||
{
|
||||
u16550_serialinit();
|
||||
}
|
||||
|
||||
#endif /* USE_SERIALDRIVER */
|
||||
@@ -0,0 +1,115 @@
|
||||
/****************************************************************************
|
||||
* arch/arm64/src/a527/a527_textheap.c
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/queue.h>
|
||||
#include <nuttx/kmalloc.h>
|
||||
|
||||
#include "arm64_mmu.h"
|
||||
#include "arm64_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
extern uint8_t _sload[];
|
||||
extern uint8_t _szload[];
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
static struct mm_heap_s *g_textheap;
|
||||
|
||||
/* Mark the Load Segment cacheable, write-read and executable */
|
||||
|
||||
static struct arm_mmu_region g_mmu_load =
|
||||
MMU_REGION_FLAT_ENTRY("nx_load",
|
||||
(uint64_t)_sload,
|
||||
(uint64_t)_szload,
|
||||
MT_NORMAL | MT_RW | MT_EXECUTE | MT_SECURE);
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_textheap_memalign
|
||||
*
|
||||
* Description:
|
||||
* Allocate memory for Text Sections with the specified alignment.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void *up_textheap_memalign(size_t align, size_t size)
|
||||
{
|
||||
if (g_textheap == NULL)
|
||||
{
|
||||
if (arm64_mmu_set_memregion(&g_mmu_load) != 0)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
g_textheap = mm_initialize("textheap", (void *)&_sload,
|
||||
(size_t)_szload);
|
||||
}
|
||||
|
||||
return mm_memalign(g_textheap, align, size);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_textheap_free
|
||||
*
|
||||
* Description:
|
||||
* Free the memory allocated for Text Sections.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_textheap_free(void *p)
|
||||
{
|
||||
if (g_textheap != NULL)
|
||||
{
|
||||
mm_free(g_textheap, p);
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_textheap_heapmember
|
||||
*
|
||||
* Description:
|
||||
* Test if the memory is from Text Heap.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
bool up_textheap_heapmember(void *p)
|
||||
{
|
||||
if (g_textheap != NULL)
|
||||
{
|
||||
return mm_heapmember(g_textheap, p);
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
@@ -0,0 +1,37 @@
|
||||
/****************************************************************************
|
||||
* arch/arm64/src/a527/a527_timer.c
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/timers/arch_alarm.h>
|
||||
#include "arm64_arch_timer.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
void up_timer_initialize(void)
|
||||
{
|
||||
up_alarm_set_lowerhalf(arm64_oneshot_initialize());
|
||||
}
|
||||
@@ -0,0 +1,44 @@
|
||||
/****************************************************************************
|
||||
* arch/arm64/src/a527/chip.h
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM64_SRC_A527_CHIP_H
|
||||
#define __ARCH_ARM64_SRC_A527_CHIP_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
# include <nuttx/arch.h>
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Macro Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#endif /* __ARCH_ARM64_SRC_A527_CHIP_H */
|
||||
Reference in New Issue
Block a user