linux-kernel - [PATCH 03/29] microblaze_mmu_v2: Alocate TLB for early console

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Message-Id: <1243406874-3917-4-git-send-email-monstr@monstr.eu>
Date:	Wed, 27 May 2009 08:47:28 +0200
From:	Michal Simek <monstr@...str.eu>
To:	linux-kernel@...r.kernel.org
Cc:	john.williams@...alogix.com, microblaze-uclinux@...e.uq.edu.au,
	michal.simek@...alogix.com, Michal Simek <monstr@...str.eu>
Subject: [PATCH 03/29] microblaze_mmu_v2: Alocate TLB for early console

Signed-off-by: Michal Simek <monstr@...str.eu>
---
 arch/microblaze/include/asm/setup.h   |   10 ++++++++--
 arch/microblaze/kernel/early_printk.c |    3 +++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 9b98e8e..27f8daf 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -1,5 +1,6 @@
 /*
- * Copyright (C) 2007-2008 Michal Simek <monstr@...str.eu>
+ * Copyright (C) 2007-2009 Michal Simek <monstr@...str.eu>
+ * Copyright (C) 2007-2009 PetaLogix
  * Copyright (C) 2006 Atmark Techno, Inc.
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -18,7 +19,6 @@
 extern unsigned int boot_cpuid; /* move to smp.h */
 
 extern char cmd_line[COMMAND_LINE_SIZE];
-#  endif/* __KERNEL__ */
 
 void early_printk(const char *fmt, ...);
 
@@ -30,6 +30,11 @@ void setup_heartbeat(void);
 
 unsigned long long sched_clock(void);
 
+#   ifdef CONFIG_MMU
+extern void mmu_reset(void);
+extern void early_console_reg_tlb_alloc(unsigned int addr);
+#   endif /* CONFIG_MMU */
+
 void time_init(void);
 void init_IRQ(void);
 void machine_early_init(const char *cmdline, unsigned int ram,
@@ -40,5 +45,6 @@ void machine_shutdown(void);
 void machine_halt(void);
 void machine_power_off(void);
 
+#  endif/* __KERNEL__ */
 # endif /* __ASSEMBLY__ */
 #endif /* _ASM_MICROBLAZE_SETUP_H */
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
index 4b0f0fd..7de8492 100644
--- a/arch/microblaze/kernel/early_printk.c
+++ b/arch/microblaze/kernel/early_printk.c
@@ -87,6 +87,9 @@ int __init setup_early_printk(char *opt)
 	base_addr = early_uartlite_console();
 	if (base_addr) {
 		early_console_initialized = 1;
+#ifdef CONFIG_MMU
+		early_console_reg_tlb_alloc(base_addr);
+#endif
 		early_printk("early_printk_console is enabled at 0x%08x\n",
 							base_addr);
 
-- 
1.5.5.1

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