From: Florian Fainelli <f.fainelli@gmail.com>
Date: Mon, 5 Nov 2018 22:54:28 +0000 (-0800)
Subject: of/fdt: Populate phys_initrd_start/phys_initrd_size from FDT
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=fe7db7570379dafec67430bb843d2e78df89e7f1;p=openwrt%2Fstaging%2Fblogic.git

of/fdt: Populate phys_initrd_start/phys_initrd_size from FDT

Now that we have central and global variables holding the physical
address and size of the initrd, we can have
early_init_dt_check_for_initrd() populate
phys_initrd_start/phys_initrd_size for us.

This allows us to remove a chunk of code from arch/arm/mm/init.c
introduced with commit 65939301acdb ("arm: set initrd_start/initrd_end
for fdt scan").

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 438625764ccd..a3b6f1f1cbaf 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -235,12 +235,6 @@ static void __init arm_initrd_init(void)
 	phys_addr_t start;
 	unsigned long size;
 
-	/* FDT scan will populate initrd_start */
-	if (initrd_start && !phys_initrd_size) {
-		phys_initrd_start = __virt_to_phys(initrd_start);
-		phys_initrd_size = initrd_end - initrd_start;
-	}
-
 	initrd_start = initrd_end = 0;
 
 	if (!phys_initrd_size)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index bb532aae0d92..88760a0983a7 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -924,6 +924,8 @@ static void __init early_init_dt_check_for_initrd(unsigned long node)
 	end = of_read_number(prop, len/4);
 
 	__early_init_dt_declare_initrd(start, end);
+	phys_initrd_start = start;
+	phys_initrd_size = end - start;
 
 	pr_debug("initrd_start=0x%llx  initrd_end=0x%llx\n",
 		 (unsigned long long)start, (unsigned long long)end);