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kernel-ark/arch/arm/mach-bcm/bcm_kona_smc.h

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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 <csd@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-02-27 05:48:49 +00:00
/*
* 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 <linux/types.h>
ARM: bcm: clean up SMC code This patch just does some simple cleanup in "bcm_kona_smc.c": - Get rid of the secure_bridge_data structure. Instead, just define two globals that record the physical and virtual addresses of the SMC arguments buffer. Use "buffer" instead of "bounce" in their names. Drop of the erroneous __iomem annotation for the physical address. - Get rid of the initialized flag and just use a non-null buffer address to indicate that. - Get the size of the memory region when fetching the SMC arguments buffer location from the device tree. Use it to call ioremap() directly rather than requiring of_iomap() to go look it up again. - Do some additional validation on that memory region size. - Flush caches unconditionally in __bcm_kona_smc(); nothing supplies SSAPI_BRCM_START_VC_CORE as a service id. - Drop a needless initialization of "rc" in __bcm_kona_smc(). It also deletes most of the content of "bcm_kona_smc.h" because it's never actually used and is of questionable value anyway. Signed-off-by: Alex Elder <elder@linaro.org> Reviewed-by: Tim Kryger <tim.kryger@linaro.org> Reviewed-by: Markus Mayer <markus.mayer@linaro.org> Reviewed-by: Matt Porter <mporter@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-21 21:53:04 +00:00
/* Broadcom Secure Service API service IDs, return codes, and exit codes */
#define SSAPI_ENABLE_L2_CACHE 0x01000002
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 <csd@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-02-27 05:48:49 +00:00
#define SEC_ROM_RET_OK 0x00000001
#define SEC_EXIT_NORMAL 0x1
ARM: bcm: Make secure API call optional The current bcm_kona_smc_init function throws a BUG_ON if there's no SMC device node defined in the device tree. Since secure API access is optional depending the chip configuration, fix this by allowing the rest of the code to run even if there's no SMC device node defined Signed-off-by: Christian Daudt <csd@broadcom.com> Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
2013-08-07 00:04:54 +00:00
extern int __init bcm_kona_smc_init(void);
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 <csd@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-02-27 05:48:49 +00:00
extern unsigned bcm_kona_smc(unsigned service_id,
unsigned arg0,
unsigned arg1,
unsigned arg2,
unsigned arg3);
#endif /* BCM_KONA_SMC_H */
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