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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16547 3c298f89-4303-0410-b956-a3cf2f4a3e73
45 lines
1.3 KiB
Diff
45 lines
1.3 KiB
Diff
From 6651009d31bfcb8e364e25e944618465f510bd0b Mon Sep 17 00:00:00 2001
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From: Kurt Mahan <kmahan@freescale.com>
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Date: Tue, 24 Jun 2008 21:23:58 -0600
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Subject: [PATCH] Update SRAM/RAMBAR1 configuration for M5445x.
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LTIBName: m5445x-rambar-config
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Signed-off-by: Kurt Mahan <kmahan@freescale.com>
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---
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arch/m68k/coldfire/head.S | 5 +++--
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include/asm-m68k/coldfire.h | 9 +++++++--
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2 files changed, 10 insertions(+), 4 deletions(-)
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--- a/arch/m68k/coldfire/head.S
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+++ b/arch/m68k/coldfire/head.S
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@@ -285,8 +285,9 @@ ENTRY(__start)
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movel %a0,%usp
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#if defined(CONFIG_M5445X)
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- movel #(MCF_RAMBAR1 + 0x221), %d0
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- movec %d0, %rambar1
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+/* JKM -- don't enable it currently -- fix */
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+/* movel #(MCF_RAMBAR1 + 0x221), %d0 */
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+/* movec %d0, %rambar1 */
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#elif defined(CONFIG_M547X_8X)
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movel #MCF_MBAR, %d0
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movec %d0, %mbar
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--- a/include/asm-m68k/coldfire.h
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+++ b/include/asm-m68k/coldfire.h
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@@ -3,8 +3,13 @@
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#if defined(CONFIG_M5445X)
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#define MCF_MBAR 0x0
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-#define MCF_RAMBAR1 0x80000000
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-#define MCF_SRAM 0x80000000
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+/*
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+ * Even though RAMBAR1 should be in the 0x8xxxxxxx range there
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+ * is a problem that needs to be resolved. Currently head.S
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+ * disables SRAM/RAMBAR1.
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+ */
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+#define MCF_RAMBAR1 0x40000000
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+#define MCF_SRAM 0x40000000
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#elif defined(CONFIG_M547X_8X)
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#define MCF_MBAR 0xF0000000
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#define MCF_MMUBAR 0xF1000000
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