From de3025f4e2bc063c274f561f9daf2b696910ad3b Mon Sep 17 00:00:00 2001
From: Jie Zhang <jie.zhang@analog.com>
Date: Mon, 25 Jun 2007 18:04:12 +0800
Subject: [PATCH] Blackfin arch: Add proper -mcpu option according to the cpu
 and silicon revision configuration

Add silicon revision "any" and "none". Add proper -mcpu option according
to the cpu and silicon revision configuration.

Need update to use latest Blackfin cross compile toolchain.

Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/Kconfig            |  6 ++++++
 arch/blackfin/Makefile           | 21 +++++++++++++++++++++
 arch/blackfin/kernel/setup.c     | 18 ++++++++++++++----
 include/asm-blackfin/processor.h |  4 ++++
 4 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 1fad8560c7af..d98bafcaca59 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -142,6 +142,12 @@ config BF_REV_0_5
 	bool "0.5"
 	depends on (BF561 || BF533 || BF532 || BF531)
 
+config BF_REV_ANY
+	bool "any"
+
+config BF_REV_NONE
+	bool "none"
+
 endchoice
 
 config BFIN_DUAL_CORE
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index 75e89c324756..6971a4418dfe 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -28,6 +28,27 @@ machine-$(CONFIG_BF561) := bf561
 MACHINE := $(machine-y)
 export MACHINE
 
+cpu-$(CONFIG_BF531) := bf531
+cpu-$(CONFIG_BF532) := bf532
+cpu-$(CONFIG_BF533) := bf533
+cpu-$(CONFIG_BF534) := bf534
+cpu-$(CONFIG_BF536) := bf536
+cpu-$(CONFIG_BF537) := bf537
+cpu-$(CONFIG_BF548) := bf548
+cpu-$(CONFIG_BF549) := bf549
+cpu-$(CONFIG_BF561) := bf561
+
+rev-$(CONFIG_BF_REV_0_0)  := 0.0
+rev-$(CONFIG_BF_REV_0_1)  := 0.1
+rev-$(CONFIG_BF_REV_0_2)  := 0.2
+rev-$(CONFIG_BF_REV_0_3)  := 0.3
+rev-$(CONFIG_BF_REV_0_4)  := 0.4
+rev-$(CONFIG_BF_REV_0_5)  := 0.5
+rev-$(CONFIG_BF_REV_NONE) := none
+rev-$(CONFIG_BF_REV_ANY)  := any
+
+CFLAGS += -mcpu=$(cpu-y)-$(rev-y)
+AFLAGS += -mcpu=$(cpu-y)-$(rev-y)
 
 head-y   := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o
 
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 5b9b434c1ed9..83060f98d15d 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -307,10 +307,20 @@ void __init setup_arch(char **cmdline_p)
 	init_leds();
 
 	printk(KERN_INFO "Blackfin support (C) 2004-2007 Analog Devices, Inc.\n");
-	printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid());
-	if (bfin_revid() != bfin_compiled_revid())
-		printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
-		       bfin_compiled_revid(), bfin_revid());
+	if (bfin_compiled_revid() == 0xffff)
+		printk(KERN_INFO "Compiled for ADSP-%s Rev any\n", CPU);
+	else if (bfin_compiled_revid() == -1)
+		printk(KERN_INFO "Compiled for ADSP-%s Rev none\n", CPU);
+	else
+		printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid());
+	if (bfin_revid() != bfin_compiled_revid()) {
+		if (bfin_compiled_revid() == -1)
+			printk(KERN_ERR "Warning: Compiled for Rev none, but running on Rev %d\n",
+			       bfin_revid());
+		else if (bfin_compiled_revid() != 0xffff)
+			printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
+			       bfin_compiled_revid(), bfin_revid());
+	}
 	if (bfin_revid() < SUPPORTED_REVID)
 		printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
 		       CPU, bfin_revid());
diff --git a/include/asm-blackfin/processor.h b/include/asm-blackfin/processor.h
index aba2b30a8ed8..6bb3e0d4705d 100644
--- a/include/asm-blackfin/processor.h
+++ b/include/asm-blackfin/processor.h
@@ -124,6 +124,10 @@ static inline __attribute_pure__ uint32_t bfin_compiled_revid(void)
 	return 4;
 #elif defined(CONFIG_BF_REV_0_5)
 	return 5;
+#elif defined(CONFIG_BF_REV_ANY)
+	return 0xffff;
+#else
+	return -1;
 #endif
 }
 
-- 
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