qemu: nios2: Enable UART 16550 driver for QEMU
Enable UART 16550 driver for Nios-II QEMU platform. Note: This PR is tested with patched version Qemu 3.0.0 which adds support for altera_10m50_zephyr machine type. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
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1c16cfcc30
commit
6320043669
6 changed files with 43 additions and 5 deletions
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@ -7,4 +7,6 @@
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#ifndef __INC_BOARD_H
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#define __INC_BOARD_H
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#include <soc.h>
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#endif /* __INC_BOARD_H */
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@ -7,17 +7,23 @@
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compatible = "qemu,nios2";
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aliases {
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uart-0 = &uart0;
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uart_0 = &jtag_uart;
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uart_1 = &ns16550_uart;
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};
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chosen {
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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zephyr,console = &uart0;
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zephyr,console = &jtag_uart;
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};
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};
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&uart0 {
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&jtag_uart {
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status = "ok";
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current-speed = <115200>;
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};
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&ns16550_uart {
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status = "ok";
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current-speed = <115200>;
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};
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@ -7,7 +7,8 @@ CONFIG_CONSOLE=y
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CONFIG_PRINTK=y
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CONFIG_SERIAL=y
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CONFIG_UART_ALTERA_JTAG=y
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CONFIG_UART_NS16550=y
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CONFIG_UART_NS16550_PORT_0=y
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CONFIG_UART_CONSOLE=y
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CONFIG_UART_CONSOLE_ON_DEV_NAME="jtag_uart0"
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CONFIG_INCLUDE_RESET_VECTOR=n
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CONFIG_EXTRA_EXCEPTION_INFO=y
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@ -29,7 +29,7 @@
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compatible = "simple-bus";
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ranges;
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uart0: uart@201000 {
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jtag_uart: uart@201000 {
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compatible = "altera,jtag-uart";
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reg = <0x201000 0x400>;
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label = "jtag_uart0";
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@ -37,5 +37,13 @@
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status = "disabled";
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};
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ns16550_uart: uart@440000 {
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compatible = "ns16550";
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reg = <0x440000 0x400>;
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label = "UART_0";
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status = "disabled";
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};
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};
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};
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@ -1,3 +1,7 @@
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#define CONFIG_UART_NS16550_PORT_0_BAUD_RATE NS16550_440000_CURRENT_SPEED
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#define CONFIG_UART_NS16550_PORT_0_NAME NS16550_440000_LABEL
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#define _RAM_ADDR CONFIG_SRAM_BASE_ADDRESS
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#define _RAM_SIZE (CONFIG_SRAM_SIZE * 1024)
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17
soc/nios2/nios2-qemu/soc.h
Normal file
17
soc/nios2/nios2-qemu/soc.h
Normal file
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@ -0,0 +1,17 @@
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/*
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* Copyright (c) 2018 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __SOC_H_
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#define __SOC_H_
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#include <system.h>
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#define CONFIG_UART_NS16550_PORT_0_BASE_ADDR A_16550_UART_0_BASE
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#define CONFIG_UART_NS16550_PORT_0_IRQ A_16550_UART_0_IRQ
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#define CONFIG_UART_NS16550_PORT_0_CLK_FREQ A_16550_UART_0_FREQ
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#endif
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