46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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* Copyright (c) 2016 Synopsys, Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <device.h>
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#include <init.h>
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#include "soc.h"
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#ifdef CONFIG_UART_NS16550
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static int uart_ns16550_init(struct device *dev)
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{
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ARG_UNUSED(dev);
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/* On ARC EM Starter kit board,
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* send the UART the command to clear the interrupt
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*/
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#ifdef CONFIG_UART_NS16550_PORT_0
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sys_write32(0, UART_NS16550_PORT_0_BASE_ADDR+0x4);
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sys_write32(0, UART_NS16550_PORT_0_BASE_ADDR+0x10);
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#endif /* CONFIG_UART_NS16550_PORT_0 */
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#ifdef CONFIG_UART_NS16550_PORT_1
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sys_write32(0, UART_NS16550_PORT_1_BASE_ADDR+0x4);
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sys_write32(0, UART_NS16550_PORT_1_BASE_ADDR+0x10);
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#endif /* CONFIG_UART_NS16550_PORT_1 */
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return 0;
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}
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SYS_INIT(uart_ns16550_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
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#endif /* CONFIG_UART_NS16550 */
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