b5e2eb2bbc
This allows re-using the code for other bare-metal programs. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/*
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* Copyright (C) 2016 Siarhei Siamashka <siarhei.siamashka@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* 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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Partially based on the uart code from ar100-info
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*
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* (C) Copyright 2013 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
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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; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Partially based on the sunxi gpio code from U-Boot
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*
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* (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net>
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*
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* Based on earlier arch/arm/cpu/armv7/sunxi/gpio.c:
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*
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* (C) Copyright 2007-2011
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Tom Cubie <tangliang@allwinnertech.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include "bare-metal.h"
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int main(void)
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{
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const struct soc_info *soc = sunxi_detect_soc();
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if (soc == NULL)
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return 0;
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gpio_init(soc);
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uart0_init(soc);
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uart0_puts("\nHello from Allwinner ");
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uart0_puts(soc->soc_name);
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uart0_puts("!\n");
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switch (get_boot_device(soc)) {
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case BOOT_DEVICE_FEL:
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uart0_puts("Returning back to FEL.\n");
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return 0;
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case BOOT_DEVICE_MMC0:
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uart0_puts("Booted from MMC0, entering an infinite loop.\n");
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while (1) {}
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case BOOT_DEVICE_SPI:
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uart0_puts("Booted from SPI0, entering an infinite loop.\n");
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while (1) {}
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default:
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uart0_puts("Booted from unknown media, entering an infinite loop.\n");
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while (1) {}
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};
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return 0;
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}
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