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author | G S Niteesh Babu <niteesh.gs@gmail.com> | 2021-03-13 16:32:02 +0530 |
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committer | Christian Mauderer <oss@c-mauderer.de> | 2021-03-21 12:30:48 +0100 |
commit | 7589f1e01aed164abc89c5ff6b23c88127c5676b (patch) | |
tree | 52f7c0f79b78b29c74ca748d7fe9a46042373977 /bsps/arm/beagle/start/bsp-soc-detect.c | |
parent | bsp/beagle: Import Beagle pinmux from FreeBSD (diff) | |
download | rtems-7589f1e01aed164abc89c5ff6b23c88127c5676b.tar.bz2 |
bsps/beagle: Added SOC detection using FDT
Detects the SOC type using FDT and also replaces the ti_cpuid.h
header in FreeBSD with custom one.
Diffstat (limited to 'bsps/arm/beagle/start/bsp-soc-detect.c')
-rw-r--r-- | bsps/arm/beagle/start/bsp-soc-detect.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/bsps/arm/beagle/start/bsp-soc-detect.c b/bsps/arm/beagle/start/bsp-soc-detect.c new file mode 100644 index 0000000000..445c8881ff --- /dev/null +++ b/bsps/arm/beagle/start/bsp-soc-detect.c @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/** + * @file + * + * @ingroup arm_Beagle + * + * @brief + */ + +/* + * Copyright (C) <2020> Niteesh Babu <niteesh.gs@gmail.com> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <rtems/bspIo.h> +#include <libfdt.h> +#include <bsp/fdt.h> +#include "bsp-soc-detect.h" + +int _ti_chip; + +void bsp_soc_detect( void ) +{ + const void *fdt = bsp_fdt_get(); + + if (fdt_node_offset_by_compatible(fdt, -1, "ti_am33xx") != FDT_ERR_NOTFOUND) { + _ti_chip = CHIP_AM335X; + } else if (fdt_node_offset_by_compatible(fdt, -1, "ti_omap3") != FDT_ERR_NOTFOUND) { + _ti_chip = CHIP_OMAP_3; + } else { + printk("Unknown platform"); + _ti_chip = -1; + } +} |