forked from Imagelibrary/rtems
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.
This commit is contained in:
G S Niteesh Babu
committed by
Christian Mauderer
Christian Mauderer
parent
5c656ead88
commit
7589f1e01a
55
bsps/arm/beagle/start/bsp-soc-detect.c
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55
bsps/arm/beagle/start/bsp-soc-detect.c
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@@ -0,0 +1,55 @@
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/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup arm_Beagle
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*
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* @brief
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*/
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/*
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* Copyright (C) <2020> Niteesh Babu <niteesh.gs@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <rtems/bspIo.h>
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#include <libfdt.h>
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#include <bsp/fdt.h>
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#include "bsp-soc-detect.h"
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int _ti_chip;
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void bsp_soc_detect( void )
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{
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const void *fdt = bsp_fdt_get();
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if (fdt_node_offset_by_compatible(fdt, -1, "ti_am33xx") != FDT_ERR_NOTFOUND) {
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_ti_chip = CHIP_AM335X;
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} else if (fdt_node_offset_by_compatible(fdt, -1, "ti_omap3") != FDT_ERR_NOTFOUND) {
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_ti_chip = CHIP_OMAP_3;
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} else {
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printk("Unknown platform");
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_ti_chip = -1;
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}
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}
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38
bsps/arm/beagle/start/bsp-soc-detect.h
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38
bsps/arm/beagle/start/bsp-soc-detect.h
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@@ -0,0 +1,38 @@
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/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup arm_Beagle
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*
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* @brief
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*/
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/*
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* Copyright (C) <2020> Niteesh Babu <niteesh.gs@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arm/ti/ti_cpuid.h>
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void bsp_soc_detect( void );
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@@ -19,17 +19,28 @@
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#include <bsp/linker-symbols.h>
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#include <bsp/i2c.h>
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#include <rtems/sysinit.h>
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#include "bsp-soc-detect.h"
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#include "bspdebug.h"
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void bsp_start(void)
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{
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#if IS_DM3730
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const char* type = "dm3730-based";
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#endif
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#if IS_AM335X
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const char* type = "am335x-based";
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#endif
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const char *type;
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bsp_soc_detect();
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switch (ti_chip()) {
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case CHIP_AM335X:
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type = "am335x-based";
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break;
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case CHIP_OMAP_3:
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type = "dm3730-based";
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break;
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default:
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type = "Unknown SOC";
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break;
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}
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bsp_interrupt_initialize();
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printk("\nRTEMS Beagleboard: %s\n", type);
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printk(" ARM Debug: 0x%08x\n", (intptr_t) bbb_arm_debug_registers());
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48
bsps/include/arm/ti/ti_cpuid.h
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48
bsps/include/arm/ti/ti_cpuid.h
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@@ -0,0 +1,48 @@
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/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup LIBFREEBSD
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*
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* @brief
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*/
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/*
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* Copyright (C) <2020> Niteesh Babu <niteesh.gs@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <assert.h>
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#define SOC_TI_AM335X
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#define CHIP_OMAP_4 0
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#define CHIP_AM335X 1
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#define CHIP_OMAP_3 2
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extern int _ti_chip;
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static __inline int ti_chip(void)
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{
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assert(_ti_chip != -1);
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return _ti_chip;
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}
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@@ -39,6 +39,7 @@ source:
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- bsps/arm/beagle/start/bspdebug.c
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- bsps/arm/beagle/start/bspreset.c
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- bsps/arm/beagle/start/bspstart.c
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- bsps/arm/beagle/start/bsp-soc-detect.c
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- bsps/arm/beagle/start/bspstarthooks.c
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- bsps/arm/beagle/start/bspstartmmu.c
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- bsps/arm/shared/cache/cache-cp15.c
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