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c64756cca2
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>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
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* Copyright (C) 2013 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef BCM_KONA_SMC_H
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#define BCM_KONA_SMC_H
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#include <linux/types.h>
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/* Broadcom Secure Service API service IDs, return codes, and exit codes */
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#define SSAPI_ENABLE_L2_CACHE 0x01000002
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#define SEC_ROM_RET_OK 0x00000001
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#define SEC_EXIT_NORMAL 0x1
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#ifndef __ASSEMBLY__
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extern int __init bcm_kona_smc_init(void);
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extern unsigned bcm_kona_smc(unsigned service_id,
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unsigned arg0,
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unsigned arg1,
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unsigned arg2,
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unsigned arg3);
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extern int bcm_kona_smc_asm(u32 service_id,
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u32 buffer_addr);
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#endif /* __ASSEMBLY__ */
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#endif /* BCM_KONA_SMC_H */
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