Firmware/MNRS-BM-BSP
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fixes TGCP environment

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This commit is contained in:
Eyck Jentzsch
2024-03-20 12:53:12 +01:00
parent e051cf180e
commit 4d25972e4d
3 changed files with 16 additions and 6 deletions
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7
env/TGCP/init.c vendored
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@ -110,12 +110,13 @@ void _fini()
}
int is_uart_ready(int uart_id){
return 1;
return !UART0_REG(UART_REG_TXFIFO) & 0x80000000;
}
int try_write_uart_char(int uart_id, char c){
*((char*)0x10000000) = c;
if(UART0_REG(UART_REG_TXFIFO) & 0x80000000) return 0;
UART0_REG(UART_REG_TXFIFO) = c;
return 1;
}
void write_uart_char(int uart_id, char c){
*((char*)0x10000000) = c;
UART0_REG(UART_REG_TXFIFO) = c;
}

13
env/TGCP/platform.h vendored
View File

@ -7,7 +7,18 @@
#define MCAUSE_INT 0x80000000
#define MCAUSE_CAUSE 0x7FFFFFFF
#include "bits.h"
#define UART0_BASE_ADDR 0xffff0000ULL
#define UART_REG_TXFIFO 0x00
#define UART_REG_RXFIFO 0x04
#define UART_REG_TXCTRL 0x08
#define UART_REG_RXCTRL 0x0c
#define UART_REG_IE 0x10
#define UART_REG_IP 0x14
#define UART_REG_DIV 0x18
#define UART_TXEN 0x1
#define UART0_REG(ADDR) *((volatile uint32_t*) (UART0_BASE_ADDR + ADDR))
/****************************************************************************
* Platform definitions
*****************************************************************************/