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subhobhai943
70d5925b16
- Implement AArch64 HAL, vector table (16 aligned vectors), GICv2, Generic Timer, Stage-1 MMU (39-bit VA), PL011 UART - Build unified multi-architecture abstraction layer in include/arch/arch.h - Create interactive Linux-like Kconfig TUI menuconfig in scripts/kconfig/menuconfig.py - Support make menuconfig, defconfig, x86_64_defconfig, aarch64_defconfig - Update master Makefile for cross-compiling x86_64 (x86_64-elf-) and AArch64 (aarch64-linux-gnu-) - Dynamic architecture awareness across printk, uname, neofetch, and LazyBox
35 lines
726 B
C
35 lines
726 B
C
#ifndef _ARCH_AARCH64_UART_H
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#define _ARCH_AARCH64_UART_H
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#include <stdint.h>
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#include <stddef.h>
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#define PL011_UART0_BASE 0x09000000
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// PL011 Registers
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#define UARTDR 0x000
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#define UARTRSR 0x004
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#define UARTFR 0x018
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#define UARTILPR 0x020
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#define UARTIBRD 0x024
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#define UARTFBRD 0x028
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#define UARTLCR 0x02C
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#define UARTCR 0x030
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#define UARTIFLS 0x034
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#define UARTIMSC 0x038
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#define UARTRIS 0x03C
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#define UARTMIS 0x040
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#define UARTICR 0x044
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// Flag register bits
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#define UARTFR_TXFF (1 << 5)
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#define UARTFR_RXFE (1 << 4)
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void uart_pl011_init(void);
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void uart_pl011_putc(char c);
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void uart_pl011_puts(const char* str);
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char uart_pl011_getc(void);
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int uart_pl011_has_data(void);
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#endif // _ARCH_AARCH64_UART_H
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