Patchwork [V3] powerpc/85xx: Add support for 85xx cpu type detection

login
register
mail settings
Submitter Haijun.Zhang
Date July 11, 2013, 12:23 a.m.
Message ID <1373502232-4772-1-git-send-email-Haijun.Zhang@freescale.com>
Download mbox | patch
Permalink /patch/258276/
State Superseded
Headers show

Comments

Haijun.Zhang - July 11, 2013, 12:23 a.m.
Add this file to help detect cpu type in runtime.
These macros will be more favorable for driver
to apply errata and workaround to specified cpu type.

Signed-off-by: Haijun Zhang <Haijun.Zhang@freescale.com>
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
---
changes for v3:
	- remove get_svr and is_svr_rev

 arch/powerpc/include/asm/mpc85xx.h | 47 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 arch/powerpc/include/asm/mpc85xx.h
Scott Wood - July 16, 2013, 5:02 p.m.
On 07/16/2013 03:46:44 AM, Zhang Haijun-B42677 wrote:
> Hi, scott
> 
> Need I change something?
> I have some patches depend on this.
> Expect your advice.
> 
> Thanks.
> 
> Regards
> Haijun.

It looks OK; go ahead and send the patches that depend on it.

-Scott
Scott Wood - July 16, 2013, 11:54 p.m.
On 07/16/2013 12:02:09 PM, Scott Wood wrote:
> On 07/16/2013 03:46:44 AM, Zhang Haijun-B42677 wrote:
>> Hi, scott
>> 
>> Need I change something?
>> I have some patches depend on this.
>> Expect your advice.
>> 
>> Thanks.
>> 
>> Regards
>> Haijun.
> 
> It looks OK; go ahead and send the patches that depend on it.

Actually, could you add p2040, p4040, p4080, p5021, and any other  
missing ones you notice (lots of e500v2 P1/P2 chips are missing too)?

At the very least p2040 and p5021 ought to be there if you're using  
this to check for p2041/p5040 errata, since they're basically the same  
chip and thus have the same errata.

-Scott

Patch

diff --git a/arch/powerpc/include/asm/mpc85xx.h b/arch/powerpc/include/asm/mpc85xx.h
new file mode 100644
index 0000000..824b619
--- /dev/null
+++ b/arch/powerpc/include/asm/mpc85xx.h
@@ -0,0 +1,47 @@ 
+/*
+ * MPC85xx cpu type detection
+ *
+ * Copyright 2011-2012 Freescale Semiconductor, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __ASM_PPC_MPC85XX_H
+#define __ASM_PPC_MPC85XX_H
+
+#define SVR_REV(svr)	((svr) & 0xFF)		/* SOC design resision */
+#define SVR_MAJ(svr)	(((svr) >>  4) & 0xF)	/* Major revision field*/
+#define SVR_MIN(svr)	(((svr) >>  0) & 0xF)	/* Minor revision field*/
+
+/* Some parts define SVR[0:23] as the SOC version */
+#define SVR_SOC_VER(svr) (((svr) >> 8) & 0xFFF7FF)	/* SOC Version fields */
+
+#define SVR_8533	0x803400
+#define SVR_8535	0x803701
+#define SVR_8536	0x803700
+#define SVR_8540	0x803000
+#define SVR_8541	0x807200
+#define SVR_8543	0x803200
+#define SVR_8544	0x803401
+#define SVR_8545	0x803102
+#define SVR_8547	0x803101
+#define SVR_8548	0x803100
+#define SVR_8555	0x807100
+#define SVR_8560	0x807000
+#define SVR_8567	0x807501
+#define SVR_8568	0x807500
+#define SVR_8569	0x808000
+#define SVR_8572	0x80E000
+#define SVR_P1010	0x80f900
+#define SVR_P2041	0x821001
+#define SVR_P3041	0x821103
+#define SVR_P5010	0x822100
+#define SVR_P5020	0x822000
+#define SVR_P5040	0x820400
+#define SVR_T4240	0x824800
+#define SVR_B4860	0x868800
+
+#endif