From b8eb35fd594aa5b635e329d5c8efab8aaceb8619 Mon Sep 17 00:00:00 2001 From: Christian Daudt Date: Tue, 26 Feb 2013 21:48:49 -0800 Subject: ARM: bcm281xx: Add L2 cache enable code - Adds a module to provide calls into secure monitor mode - Uses this module to make secure monitor calls to enable L2 cache. Updates from V1: - Split DT portion into separate patch - replace #ifdef-ed L2 code with "if". - move init call to board init Signed-off-by: Christian Daudt Acked-by: Arnd Bergmann --- arch/arm/mach-bcm/bcm_kona_smc.h | 80 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 arch/arm/mach-bcm/bcm_kona_smc.h (limited to 'arch/arm/mach-bcm/bcm_kona_smc.h') diff --git a/arch/arm/mach-bcm/bcm_kona_smc.h b/arch/arm/mach-bcm/bcm_kona_smc.h new file mode 100644 index 000000000000..3bedbed1c21b --- /dev/null +++ b/arch/arm/mach-bcm/bcm_kona_smc.h @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2013 Broadcom Corporation + * + * This program 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 version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef BCM_KONA_SMC_H +#define BCM_KONA_SMC_H + +#include +#define FLAGS (SEC_ROM_ICACHE_ENABLE_MASK | SEC_ROM_DCACHE_ENABLE_MASK | \ + SEC_ROM_IRQ_ENABLE_MASK | SEC_ROM_FIQ_ENABLE_MASK) + +/*! + * Definitions for IRQ & FIQ Mask for ARM + */ + +#define FIQ_IRQ_MASK 0xC0 +#define FIQ_MASK 0x40 +#define IRQ_MASK 0x80 + +/*! + * Secure Mode FLAGs + */ + +/* When set, enables ICache within the secure mode */ +#define SEC_ROM_ICACHE_ENABLE_MASK 0x00000001 + +/* When set, enables DCache within the secure mode */ +#define SEC_ROM_DCACHE_ENABLE_MASK 0x00000002 + +/* When set, enables IRQ within the secure mode */ +#define SEC_ROM_IRQ_ENABLE_MASK 0x00000004 + +/* When set, enables FIQ within the secure mode */ +#define SEC_ROM_FIQ_ENABLE_MASK 0x00000008 + +/* When set, enables Unified L2 cache within the secure mode */ +#define SEC_ROM_UL2_CACHE_ENABLE_MASK 0x00000010 + +/* Broadcom Secure Service API Service IDs */ +#define SSAPI_DORMANT_ENTRY_SERV 0x01000000 +#define SSAPI_PUBLIC_OTP_SERV 0x01000001 +#define SSAPI_ENABLE_L2_CACHE 0x01000002 +#define SSAPI_DISABLE_L2_CACHE 0x01000003 +#define SSAPI_WRITE_SCU_STATUS 0x01000004 +#define SSAPI_WRITE_PWR_GATE 0x01000005 + +/* Broadcom Secure Service API Return Codes */ +#define SEC_ROM_RET_OK 0x00000001 +#define SEC_ROM_RET_FAIL 0x00000009 + +#define SSAPI_RET_FROM_INT_SERV 0x4 +#define SEC_EXIT_NORMAL 0x1 + +#define SSAPI_ROW_AES 0x0E000006 +#define SSAPI_BRCM_START_VC_CORE 0x0E000008 + +#ifndef __ASSEMBLY__ +extern void bcm_kona_smc_init(void); + +extern unsigned bcm_kona_smc(unsigned service_id, + unsigned arg0, + unsigned arg1, + unsigned arg2, + unsigned arg3); + +extern int bcm_kona_smc_asm(u32 service_id, + u32 buffer_addr); + +#endif /* __ASSEMBLY__ */ + +#endif /* BCM_KONA_SMC_H */ -- cgit