linux-kernel - [PATCH 15/28] mips: use early_init_dt

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Message-Id: <1379372965-22359-16-git-send-email-robherring2@gmail.com>
Date:	Mon, 16 Sep 2013 18:09:11 -0500
From:	Rob Herring <robherring2@...il.com>
To:	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org
Subject: [PATCH 15/28] mips: use early_init_dt_scan

From: Rob Herring <rob.herring@...xeda.com>

Convert mips to use new early_init_dt_scan function.

Remove early_init_dt_scan_memory_arch

Signed-off-by: Rob Herring <rob.herring@...xeda.com>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: linux-mips@...ux-mips.org
---
 arch/mips/include/asm/prom.h |  3 ---
 arch/mips/kernel/prom.c      | 39 +++------------------------------------
 2 files changed, 3 insertions(+), 39 deletions(-)

diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
index 1e7e096..e3dbd0e 100644
--- a/arch/mips/include/asm/prom.h
+++ b/arch/mips/include/asm/prom.h
@@ -17,9 +17,6 @@
 #include <linux/types.h>
 #include <asm/bootinfo.h>
 
-extern int early_init_dt_scan_memory_arch(unsigned long node,
-	const char *uname, int depth, void *data);
-
 extern void device_tree_init(void);
 
 static inline unsigned long pci_address_to_pio(phys_addr_t address)
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 0fa0b69..67a4c53 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -17,8 +17,6 @@
 #include <linux/debugfs.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
 
 #include <asm/page.h>
 #include <asm/prom.h>
@@ -40,13 +38,6 @@ char *mips_get_machine_name(void)
 }
 
 #ifdef CONFIG_OF
-int __init early_init_dt_scan_memory_arch(unsigned long node,
-					  const char *uname, int depth,
-					  void *data)
-{
-	return early_init_dt_scan_memory(node, uname, depth, data);
-}
-
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
 	return add_memory_region(base, size, BOOT_MEM_RAM);
@@ -78,36 +69,12 @@ int __init early_init_dt_scan_model(unsigned long node,	const char *uname,
 	return 0;
 }
 
-void __init early_init_devtree(void *params)
-{
-	/* Setup flat device-tree pointer */
-	initial_boot_params = params;
-
-	/* Retrieve various informations from the /chosen node of the
-	 * device-tree, including the platform type, initrd location and
-	 * size, and more ...
-	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, arcs_cmdline);
-
-
-	/* Scan memory nodes */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
-
-	/* try to load the mips machine name */
-	of_scan_flat_dt(early_init_dt_scan_model, NULL);
-}
-
 void __init __dt_setup_arch(struct boot_param_header *bph)
 {
-	if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
-		pr_err("DTB has bad magic, ignoring builtin OF DTB\n");
-
+	if (!early_init_dt_scan(bph))
 		return;
-	}
-
-	initial_boot_params = bph;
 
-	early_init_devtree(initial_boot_params);
+	/* try to load the mips machine name */
+	of_scan_flat_dt(early_init_dt_scan_model, NULL);
 }
 #endif
-- 
1.8.1.2

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