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https://github.com/brain-hackers/u-boot-brain
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2d779b39b4
Implement new accessor, sysmgr_get_pinmux_table(), used to obtain pinmux table and it's size from the QTS-generated pinmux_config.c. The target here is again to get rid of poluting global namespace by including the pinmux_config.h into it. Furthermore, the pinmux_config.h declares some CONFIG_HPS_* macros, which are explicitly useless to us in U-Boot. Instead, U-Boot does use DT to detect exactly these configuration options. This patch makes sure that while this QTS-generated file can stay in the tree, these obscure macros do not ooze into the namespace anymore. Signed-off-by: Marek Vasut <marex@denx.de>
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/*
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* Copyright (C) 2015 Marek Vasut <marex@denx.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <errno.h>
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/*
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* Yes, dear reader, we're including a C file here, this is no mistake.
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* But this time around, we do even more perverse hacking here to be
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* compatible with QTS headers and obtain reasonably nice results too.
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*
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* First, we define _PRELOADER_PINMUX_CONFIG_H_, which will neutralise
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* the pinmux_config.h inclusion in pinmux_config.c . Since we are
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* probing everything from DT, we do NOT want those macros from the
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* pinmux_config.h to ooze into our build system, anywhere, ever. So
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* we nip it at the bud.
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*
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* Next, pinmux_config.c needs CONFIG_HPS_PINMUX_NUM and uses it to
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* specify sized array explicitly. Instead, we want to use ARRAY_SIZE
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* to figure out the size of the array, so define this macro as an
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* empty one, so that the preprocessor optimizes things such that the
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* arrays are not sized by default.
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*/
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#define _PRELOADER_PINMUX_CONFIG_H_
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#define CONFIG_HPS_PINMUX_NUM
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#include "qts/pinmux_config.c"
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void sysmgr_get_pinmux_table(const unsigned long **table,
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unsigned int *table_len)
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{
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*table = sys_mgr_init_table;
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*table_len = ARRAY_SIZE(sys_mgr_init_table);
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}
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