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From: Tiezhu Yang <yangtiezhu@loongson.cn>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Huacai Chen <chenhc@lemote.com>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>,
	Bjorn Helgaas <bhelgaas@google.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-mips@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
	Xuefeng Li <lixuefeng@loongson.cn>
Subject: [PATCH 3/6] MIPS: Loongson: Use firmware arguments to get board name
Date: Mon,  9 Mar 2020 16:23:23 +0800	[thread overview]
Message-ID: <1583742206-29163-4-git-send-email-yangtiezhu@loongson.cn> (raw)
In-Reply-To: <1583742206-29163-1-git-send-email-yangtiezhu@loongson.cn>

In order to distinguish various types of bridge chip such as AMD RS780E
or Loongson 7A1000, we can use firmware arguments to get board name.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 arch/mips/include/asm/mach-loongson64/boot_param.h | 1 +
 arch/mips/loongson64/env.c                         | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h
index 8c286be..225a563 100644
--- a/arch/mips/include/asm/mach-loongson64/boot_param.h
+++ b/arch/mips/include/asm/mach-loongson64/boot_param.h
@@ -217,5 +217,6 @@ struct loongson_system_configuration {
 
 extern struct efi_memory_map_loongson *loongson_memmap;
 extern struct loongson_system_configuration loongson_sysconf;
+extern struct board_devices *eboard;
 
 #endif
diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c
index 0daeb7b..a244a8c 100644
--- a/arch/mips/loongson64/env.c
+++ b/arch/mips/loongson64/env.c
@@ -24,6 +24,9 @@ EXPORT_SYMBOL(cpu_clock_freq);
 struct efi_memory_map_loongson *loongson_memmap;
 struct loongson_system_configuration loongson_sysconf;
 
+struct board_devices *eboard;
+EXPORT_SYMBOL(eboard);
+
 u64 loongson_chipcfg[MAX_PACKAGES] = {0xffffffffbfc00180};
 u64 loongson_chiptemp[MAX_PACKAGES];
 u64 loongson_freqctrl[MAX_PACKAGES];
@@ -51,6 +54,8 @@ void __init prom_init_env(void)
 		((u64)loongson_p + loongson_p->system_offset);
 	ecpu = (struct efi_cpuinfo_loongson *)
 		((u64)loongson_p + loongson_p->cpu_offset);
+	eboard = (struct board_devices *)
+		((u64)loongson_p + loongson_p->boarddev_table_offset);
 	eirq_source = (struct irq_source_routing_table *)
 		((u64)loongson_p + loongson_p->irq_offset);
 	loongson_memmap = (struct efi_memory_map_loongson *)
-- 
2.1.0


  parent reply	other threads:[~2020-03-09  8:24 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-09  8:23 [PATCH 0/6] Add basic support for Loongson 7A1000 bridge chip Tiezhu Yang
2020-03-09  8:23 ` [PATCH 1/6] PCI: Add Loongson vendor ID and 7A1000 device IDs Tiezhu Yang
2020-03-09  8:50   ` 回复:[PATCH " Jiaxun Yang
2020-03-10  2:31     ` Tiezhu Yang
2020-03-10  2:37       ` Jiaxun Yang
2020-03-10  9:28         ` Tiezhu Yang
2020-03-09  8:23 ` [PATCH 2/6] AHCI: Add support for Loongson 7A1000 SATA controller Tiezhu Yang
2020-03-09  8:23 ` Tiezhu Yang [this message]
2020-03-09  8:36   ` 回复:[PATCH 3/6] MIPS: Loongson: Use firmware arguments to get board name Jiaxun Yang
2020-03-10  2:38     ` Tiezhu Yang
2020-03-09  8:23 ` [PATCH 4/6] MIPS: Loongson: Add DMA support for 7A1000 Tiezhu Yang
2020-03-09  8:44   ` 回复:[PATCH " Jiaxun Yang
2020-03-10  2:40     ` Tiezhu Yang
2020-03-13  8:24   ` [PATCH " Christoph Hellwig
2020-03-13  9:03     ` Tiezhu Yang
2020-03-09  8:23 ` [PATCH 5/6] MIPS: Loongson: Add PCI " Tiezhu Yang
2020-03-09  8:47   ` 回复:[PATCH " Jiaxun Yang
2020-03-10  3:03     ` Tiezhu Yang
2020-03-09  8:23 ` [PATCH 6/6] MIPS: Loongson: Add support for 7A1000 interrupt controller Tiezhu Yang
2020-03-09  9:07   ` 回复:[PATCH " Jiaxun Yang
2020-03-10  4:28     ` Tiezhu Yang

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