From patchwork Mon Mar 15 07:49:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qing Zhang X-Patchwork-Id: 12138529 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A16C2C4361B for ; Mon, 15 Mar 2021 07:51:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A3B264E77 for ; Mon, 15 Mar 2021 07:51:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230457AbhCOHum (ORCPT ); Mon, 15 Mar 2021 03:50:42 -0400 Received: from mail.loongson.cn ([114.242.206.163]:41268 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S230270AbhCOHuU (ORCPT ); Mon, 15 Mar 2021 03:50:20 -0400 Received: from localhost.localdomain (unknown [113.200.148.30]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9AxydSsEU9gcqMZAA--.1167S4; Mon, 15 Mar 2021 15:50:11 +0800 (CST) From: Qing Zhang To: Thomas Bogendoerfer , Thomas Gleixner , Marc Zyngier , Huacai Chen , Jiaxun Yang Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Ming Wang Subject: [PATCH v5 2/7] MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI Date: Mon, 15 Mar 2021 15:49:59 +0800 Message-Id: <20210315075004.15465-3-zhangqing@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210315075004.15465-1-zhangqing@loongson.cn> References: <20210315075004.15465-1-zhangqing@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf9AxydSsEU9gcqMZAA--.1167S4 X-Coremail-Antispam: 1UD129KBjvJXoWxCrWkCF1rZF48urykCr1UGFg_yoWrJry8pF WfAa4DWr4rWFsxCrs3Jry8ZrWrAFZ5GFsFvF42kr1jgFyDK34xXrn8GF15ArW7AF4rWa45 ZrWSgws7WF4kC37anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBS14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jryl82xGYIkIc2 x26xkF7I0E14v26r4j6ryUM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1UM2 8EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS 0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2 IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0 Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCY02Avz4vE14v_GF4l42xK82 IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC2 0s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMI IF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF 0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87 Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjfUUksqDUUUU X-CM-SenderInfo: x2kd0wptlqwqxorr0wxvrqhubq/ Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Add DTB boot support, only support Loongson-2K1000 processor for now, determine whether to use the built-in DTB or the DTB from the firmware by checking the range of CKSEG0 and XKPHYS. loongson_fw_interface will be used in the future. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - Remake the patch based on the latest changes arch/mips/include/asm/mach-loongson64/loongson.h | 9 ++++++++- arch/mips/loongson64/env.c | 13 ++++++++++++- arch/mips/loongson64/init.c | 16 ++++++++++++++-- 3 files changed, 34 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index 6189deb188cf..f7c3ab6d724e 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -12,8 +12,14 @@ #include #include +enum loongson_fw_interface { + LOONGSON_LEFI, + LOONGSON_DTB, +}; + /* machine-specific boot configuration */ struct loongson_system_configuration { + enum loongson_fw_interface fw_interface; u32 nr_cpus; u32 nr_nodes; int cores_per_node; @@ -41,7 +47,8 @@ extern u32 memsize, highmemsize; extern const struct plat_smp_ops loongson3_smp_ops; /* loongson-specific command line, env and memory initialization */ -extern void __init prom_init_env(void); +extern void __init prom_dtb_init_env(void); +extern void __init prom_lefi_init_env(void); extern void __init szmem(unsigned int node); extern void *loongson_fdt_blob; diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 1821d461b606..c8bb75d58f17 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -43,7 +43,18 @@ const char *get_system_type(void) return "Generic Loongson64 System"; } -void __init prom_init_env(void) + +void __init prom_dtb_init_env(void) +{ + if ((fw_arg2 < CKSEG0 || fw_arg2 > CKSEG1) + && (fw_arg2 < XKPHYS || fw_arg2 > XKSEG)) + + loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin; + else + loongson_fdt_blob = (void *)fw_arg2; +} + +void __init prom_lefi_init_env(void) { struct boot_params *boot_p; struct loongson_params *loongson_p; diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index cfa788bca871..ed280b73bf89 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -52,6 +52,10 @@ void __init szmem(unsigned int node) static unsigned long num_physpages; u64 node_id, node_psize, start_pfn, end_pfn, mem_start, mem_size; + /* Otherwise come from DTB */ + if (loongson_sysconf.fw_interface != LOONGSON_LEFI) + return; + /* Parse memory information and activate */ for (i = 0; i < loongson_memmap->nr_map; i++) { node_id = loongson_memmap->map[i].node_id; @@ -94,12 +98,20 @@ static void __init prom_init_memory(void) void __init prom_init(void) { fw_init_cmdline(); - prom_init_env(); + + if (fw_arg2 == 0 || (fdt_magic(fw_arg2) == FDT_MAGIC)) { + loongson_sysconf.fw_interface = LOONGSON_DTB; + prom_dtb_init_env(); + } else { + loongson_sysconf.fw_interface = LOONGSON_LEFI; + prom_lefi_init_env(); + } /* init base address of io space */ set_io_port_base(PCI_IOBASE); - loongson_sysconf.early_config(); + if (loongson_sysconf.early_config) + loongson_sysconf.early_config(); #ifdef CONFIG_NUMA prom_init_numa_memory();