xiaoxiang781216 commented on code in PR #17208: URL: https://github.com/apache/nuttx/pull/17208#discussion_r2438627281
########## arch/arm/src/samv7/sam_chipid.c: ########## @@ -0,0 +1,58 @@ +/**************************************************************************** + * arch/arm/src/samv7/sam_chipid.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 "sam_chipid.h" +#include "hardware/sam_chipid.h" +#include "arm_internal.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +bool sam_has_revb_periphs(void) +{ +#ifdef CONFIG_ARCH_CHIP_PIC32CZCA70 + return true; +#else + uint32_t regval; + uint32_t id_arch; + uint32_t id_version; + + regval = getreg32(SAM_CHIPID_CIDR); + id_arch = (regval & CHIPID_CIDR_ARCH_MASK) >> CHIPID_CIDR_ARCH_SHIFT; + id_version = (regval & CHIPID_CIDR_VERSION_MASK) + >> CHIPID_CIDR_VERSION_SHIFT; + + /* SAMV7s are identified by 0x10-0x13, thus anything else is PIC32CZ */ + + if ((id_arch & 0xfc) != 0x10) + { + return true; + } + + return id_version; Review Comment: id_version != 0? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
