From: Jiaxun Yang <jiaxun.yang@flygoat.com>
To: linux-mips@vger.kernel.org
Cc: chenhc@lemote.com, paul.burton@mips.com, tglx@linutronix.de,
jason@lakedaemon.net, maz@kernel.org,
linux-kernel@vger.kernel.org, robh+dt@kernel.org,
mark.rutland@arm.co, devicetree@vger.kernel.org,
Jiaxun Yang <jiaxun.yang@flygoat.com>
Subject: [PATCH v1 15/18] MIPS: Loongson64: Load built-in dtbs
Date: Fri, 30 Aug 2019 12:32:29 +0800 [thread overview]
Message-ID: <20190830043232.20191-10-jiaxun.yang@flygoat.com> (raw)
In-Reply-To: <20190830043232.20191-1-jiaxun.yang@flygoat.com>
Load proper dtb according to firmware passed parameters and
CPU PRID.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
.../asm/mach-loongson64/builtin_dtbs.h | 26 +++++++
.../include/asm/mach-loongson64/loongson64.h | 2 +
arch/mips/loongson64/env.c | 67 +++++++++++++++++++
arch/mips/loongson64/setup.c | 15 +++++
4 files changed, 110 insertions(+)
create mode 100644 arch/mips/include/asm/mach-loongson64/builtin_dtbs.h
diff --git a/arch/mips/include/asm/mach-loongson64/builtin_dtbs.h b/arch/mips/include/asm/mach-loongson64/builtin_dtbs.h
new file mode 100644
index 000000000000..106287d54069
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson64/builtin_dtbs.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019 Jiaxun Yang <jiaxun.yang@flygoat.com>
+ *
+ * Built-in Generic dtbs for MACH_LOONGSON64
+ */
+
+#ifndef __ASM_MACH_LOONGSON64_BUILTIN_DTBS_H_
+#define __ASM_MACH_LOONGSON64_BUILTIN_DTBS_H_
+
+extern u32 __dtb_ls3a1000_780e_1way_begin[];
+extern u32 __dtb_ls3a1000_780e_2way_begin[];
+extern u32 __dtb_ls3a1000_780e_4way_begin[];
+
+extern u32 __dtb_ls3b_780e_1way_begin[];
+extern u32 __dtb_ls3b_780e_2way_begin[];
+
+extern u32 __dtb_ls3a2000_780e_1way_begin[];
+extern u32 __dtb_ls3a2000_780e_2way_begin[];
+extern u32 __dtb_ls3a2000_780e_4way_begin[];
+
+extern u32 __dtb_ls3a3000_780e_1way_begin[];
+extern u32 __dtb_ls3a3000_780e_2way_begin[];
+extern u32 __dtb_ls3a3000_780e_4way_begin[];
+
+#endif
diff --git a/arch/mips/include/asm/mach-loongson64/loongson64.h b/arch/mips/include/asm/mach-loongson64/loongson64.h
index d877adb99d33..78daa3fb3fa7 100644
--- a/arch/mips/include/asm/mach-loongson64/loongson64.h
+++ b/arch/mips/include/asm/mach-loongson64/loongson64.h
@@ -45,4 +45,6 @@ extern u64 loongson_freqctrl[MAX_PACKAGES];
extern const struct plat_smp_ops loongson3_smp_ops;
extern void __init prom_init_lefi(void);
+extern void *loongson_fdt_blob;
+
#endif
diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c
index 93658cfbf3a6..e46203c4a348 100644
--- a/arch/mips/loongson64/env.c
+++ b/arch/mips/loongson64/env.c
@@ -20,6 +20,7 @@
#include <loongson64.h>
#include <boot_param.h>
+#include <builtin_dtbs.h>
#include <workarounds.h>
u32 cpu_clock_freq;
@@ -126,6 +127,72 @@ void __init prom_init_lefi(void)
loongson_sysconf.cores_per_node - 1) /
loongson_sysconf.cores_per_node;
+ if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64) {
+ switch (read_c0_prid() & PRID_REV_MASK) {
+ case PRID_REV_LOONGSON3A_R1:
+ switch (loongson_sysconf.nr_nodes) {
+ case 4:
+ loongson_fdt_blob = __dtb_ls3a1000_780e_4way_begin;
+ break;
+ case 2:
+ loongson_fdt_blob = __dtb_ls3a1000_780e_2way_begin;
+ break;
+ case 1:
+ default:
+ loongson_fdt_blob = __dtb_ls3a1000_780e_1way_begin;
+ break;
+ }
+ break;
+ case PRID_REV_LOONGSON3A_R2_0:
+ case PRID_REV_LOONGSON3A_R2_1:
+ switch (loongson_sysconf.nr_nodes) {
+ case 4:
+ loongson_fdt_blob = __dtb_ls3a2000_780e_4way_begin;
+ break;
+ case 2:
+ loongson_fdt_blob = __dtb_ls3a2000_780e_2way_begin;
+ break;
+ case 1:
+ default:
+ loongson_fdt_blob = __dtb_ls3a2000_780e_1way_begin;
+ break;
+ }
+ break;
+ case PRID_REV_LOONGSON3A_R3_0:
+ case PRID_REV_LOONGSON3A_R3_1:
+ switch (loongson_sysconf.nr_nodes) {
+ case 4:
+ loongson_fdt_blob = __dtb_ls3a3000_780e_4way_begin;
+ break;
+ case 2:
+ loongson_fdt_blob = __dtb_ls3a3000_780e_2way_begin;
+ break;
+ case 1:
+ default:
+ loongson_fdt_blob = __dtb_ls3a3000_780e_1way_begin;
+ break;
+ }
+ break;
+ case PRID_REV_LOONGSON3B_R1:
+ case PRID_REV_LOONGSON3B_R2:
+ switch (loongson_sysconf.nr_nodes) {
+ case 4:
+ loongson_fdt_blob = __dtb_ls3b_780e_2way_begin;
+ break;
+ case 2:
+ default:
+ loongson_fdt_blob = __dtb_ls3b_780e_1way_begin;
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (!loongson_fdt_blob)
+ pr_err("Failed to determine built-in Loongson64 dtb\n");
+
loongson_sysconf.pci_mem_start_addr = eirq_source->pci_mem_start_addr;
loongson_sysconf.pci_mem_end_addr = eirq_source->pci_mem_end_addr;
loongson_sysconf.pci_io_base = eirq_source->pci_io_start_addr;
diff --git a/arch/mips/loongson64/setup.c b/arch/mips/loongson64/setup.c
index 24432adc8350..3b850b3128ea 100644
--- a/arch/mips/loongson64/setup.c
+++ b/arch/mips/loongson64/setup.c
@@ -7,9 +7,15 @@
#include <asm/setup.h>
#include <asm/smp-ops.h>
#include <asm/cacheflush.h>
+#include <linux/libfdt.h>
+#include <linux/of_fdt.h>
+
+#include <asm/prom.h>
#include <loongson64.h>
+void *loongson_fdt_blob;
+
static void wbflush_loongson(void)
{
asm(".set\tpush\n\t"
@@ -81,6 +87,8 @@ void __init prom_free_prom_memory(void)
void __init plat_mem_setup(void)
{
+ if (loongson_fdt_blob)
+ __dt_setup_arch(loongson_fdt_blob);
}
void __init plat_time_init(void)
@@ -90,3 +98,10 @@ void __init plat_time_init(void)
#endif
}
+void __init device_tree_init(void)
+{
+ if (!initial_boot_params)
+ return;
+
+ unflatten_and_copy_device_tree();
+}
--
2.22.0
next prev parent reply other threads:[~2019-08-30 4:35 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-30 4:32 [PATCH v1 06/18] dt-bindings: interrupt-controller: Add Loongson-3 IOINTC Jiaxun Yang
2019-08-30 4:32 ` [PATCH v1 07/18] irqchip: Add driver for Loongson-3 HyperTransport interrupt controller Jiaxun Yang
2019-08-30 4:32 ` [PATCH v1 08/18] dt-bindings: interrupt-controller: Add Loongson-3 HTINTC Jiaxun Yang
2019-09-02 13:39 ` Rob Herring
2019-08-30 4:32 ` [PATCH v1 09/18] irqchip: i8259: Add plat-poll support Jiaxun Yang
2019-08-30 4:32 ` [PATCH v1 10/18] irqchip: mips-cpu: Convert to simple domain Jiaxun Yang
2019-08-30 4:32 ` [PATCH v1 11/18] MIPS: Loongson64: Drop legacy IRQ code Jiaxun Yang
2019-08-30 4:32 ` [PATCH v1 12/18] dt-bindings: mips: Add loongson cpus & boards Jiaxun Yang
2019-09-13 14:36 ` Rob Herring
2019-08-30 4:32 ` [PATCH v1 13/18] dt-bindings: Document loongson vendor-prefix Jiaxun Yang
2019-09-02 13:39 ` Rob Herring
2019-08-30 4:32 ` [PATCH v1 14/18] MIPS: Loongson64: Add generic dts Jiaxun Yang
[not found] ` <tencent_1942EDDF41E4786E357A4E9D@qq.com>
2019-09-04 6:08 ` Jiaxun Yang
2019-08-30 4:32 ` Jiaxun Yang [this message]
2019-08-30 4:32 ` [PATCH v1 16/18] MIPS: Loongson: Regenerate defconfigs Jiaxun Yang
2019-08-30 4:32 ` [PATCH v1 17/18] MAINTAINERS: Add new pathes to LOONGSON64 ARCHITECTURE Jiaxun Yang
2019-08-30 4:32 ` [PATCH v1 18/18] MAINTAINERS: Add myself as maintainer of LOONGSON64 Jiaxun Yang
2019-09-02 13:38 ` [PATCH v1 06/18] dt-bindings: interrupt-controller: Add Loongson-3 IOINTC Rob Herring
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190830043232.20191-10-jiaxun.yang@flygoat.com \
--to=jiaxun.yang@flygoat.com \
--cc=chenhc@lemote.com \
--cc=devicetree@vger.kernel.org \
--cc=jason@lakedaemon.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=mark.rutland@arm.co \
--cc=maz@kernel.org \
--cc=paul.burton@mips.com \
--cc=robh+dt@kernel.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).