Re: [PATCH v2 01/17] sh: Add sh-specific early_init_dt_reserve_memory_arch

[Sergei Shtylyov]

On 6/12/2016 9:54 AM, Yoshinori Sato wrote:

sh used P1 address space in early device tree.
So need convert P1 to physical address before reserve memory.

Signed-off-by: Yoshinori Sato <ys...@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..fe2d917 100644
--- a/arch/sh/boards/of-generic.c
+++ b/arch/sh/boards/of-generic.c

[...]

@@ -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 = base & ~P1SEG;

                base &= ~P1SEG;

+       return memblock_reserve(base, size);
+}

MBR, Sergei