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Ecovec (SH7724) board doesn't work on latest linus tree

Message ID CABMQnVLws9xeAyu5iWVT7MqRYmBBDYKSkn1P+fAbpzj-b_Pv3A@mail.gmail.com (mailing list archive)
State Superseded
Commit dfd3b596fbbfa48b8e7966ef996d587157554b69
Headers show

Commit Message

Nobuhiro Iwamatsu Sept. 8, 2011, 8:52 a.m. UTC 
Hi,

Your patch does not seem to have a meaning.
In the case of 29bit, CAC/UNCAC_ADDR may not return a right address.
I think that it is to use P1SEGADDR, and P2SEGADDR in CAC/UNCAC_ADDR
to easily revise this.
I attached my patch.

Best regards,
  Nobuhiro

From b1f83e75a2dc5a61671d18e8f472450561c9eea7 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 8 Sep 2011 17:37:24 +0900
Subject: [PATCH] sh: Fix address calculation of CAC_ADDR and
UNCAC_ADDR in 29bit mode

In the case of 29bit mode, CAC/UNCAC_ADDR does not return a right address.
This revises this problem by using P1SEGADDR and P2SEGADDR in 29bit mode.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
---
 arch/sh/include/asm/page.h |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
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Patch

diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h
index 822d608..abcc4dc 100644
--- a/arch/sh/include/asm/page.h
+++ b/arch/sh/include/asm/page.h
@@ -141,8 +141,13 @@  typedef struct page *pgtable_t;
 #endif /* !__ASSEMBLY__ */

 #ifdef CONFIG_UNCACHED_MAPPING
+#if defined(CONFIG_29BIT)
+#define UNCAC_ADDR(addr)	P2SEGADDR(addr)
+#define CAC_ADDR(addr)		P1SEGADDR(addr)
+#else
 #define UNCAC_ADDR(addr)	((addr) - PAGE_OFFSET + uncached_start)
 #define CAC_ADDR(addr)		((addr) - uncached_start + PAGE_OFFSET)
+#endif
 #else
 #define UNCAC_ADDR(addr)	((addr))
 #define CAC_ADDR(addr)		((addr))