From patchwork Wed Jul 10 07:39:01 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [1/4,V2] powerpc/85xx: Add support for 85xx cpu type detection From: "Haijun.Zhang" X-Patchwork-Id: 257981 Message-Id: <1373441941-32650-1-git-send-email-Haijun.Zhang@freescale.com> To: , Cc: Zhao Chenhui , r39252@freescale.com, AFLEMING@freescale.com, Haijun Zhang , cbouatmailru@gmail.com, scottwood@freescale.com, cjb@laptop.org, X.Xie@freescale.com Date: Wed, 10 Jul 2013 15:39:01 +0800 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 Signed-off-by: Zhao Chenhui --- changes v2: - Remove inline function - Ignore E bit of SOC - Add Macro to get current soc version arch/powerpc/include/asm/mpc85xx.h | 53 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 arch/powerpc/include/asm/mpc85xx.h diff --git a/arch/powerpc/include/asm/mpc85xx.h b/arch/powerpc/include/asm/mpc85xx.h new file mode 100644 index 0000000..20af5e8 --- /dev/null +++ b/arch/powerpc/include/asm/mpc85xx.h @@ -0,0 +1,53 @@ +/* + * 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 */ + +/* Get current SOC Version */ +#define GET_SVR() (mfspr(SPRN_SVR)) + +#define IS_SVR_REV(svr, maj, min) \ + ((SVR_MAJ(svr) == (maj)) && (SVR_MIN(svr) == (min))) + +#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