[PATCH v4 01/22] sh: Add sh-specific early_init_dt_reserve_memory_arch
From: Yoshinori Sato <ysato@users.sourceforge.jp>
Date: 2016-06-29 13:41:20
Also in:
linux-sh
Subsystem:
superh, the rest · Maintainers:
Yoshinori Sato, Rich Felker, John Paul Adrian Glaubitz, Linus Torvalds
sh used P1 address space in early device tree. So need convert P1 to physical address before reserve memory. Changes v4 none Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> --- arch/sh/boards/of-generic.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c
index 57d45dc..8dbf978 100644
--- a/arch/sh/boards/of-generic.c
+++ b/arch/sh/boards/of-generic.c@@ -15,6 +15,7 @@ #include <linux/clocksource.h> #include <linux/irqchip.h> #include <linux/clk-provider.h> +#include <linux/memblock.h> #include <asm/machvec.h> #include <asm/rtc.h>
@@ -203,3 +204,14 @@ static int __init sh_of_device_init(void) return 0; } arch_initcall_sync(sh_of_device_init); + +int __init early_init_dt_reserve_memory_arch(phys_addr_t base, + phys_addr_t size, bool nomap) +{ + if (nomap) + return memblock_remove(base, size); + + if (base >= P1SEG) + base &= ~P1SEG; + return memblock_reserve(base, size); +}
--
2.7.0