fixes TGCP environment
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e051cf180e
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4d25972e4d
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@ -110,12 +110,13 @@ void _fini()
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}
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int is_uart_ready(int uart_id){
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return 1;
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return !UART0_REG(UART_REG_TXFIFO) & 0x80000000;
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}
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int try_write_uart_char(int uart_id, char c){
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*((char*)0x10000000) = c;
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if(UART0_REG(UART_REG_TXFIFO) & 0x80000000) return 0;
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UART0_REG(UART_REG_TXFIFO) = c;
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return 1;
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}
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void write_uart_char(int uart_id, char c){
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*((char*)0x10000000) = c;
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UART0_REG(UART_REG_TXFIFO) = c;
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}
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@ -7,7 +7,18 @@
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#define MCAUSE_INT 0x80000000
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#define MCAUSE_CAUSE 0x7FFFFFFF
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#include "bits.h"
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#define UART0_BASE_ADDR 0xffff0000ULL
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#define UART_REG_TXFIFO 0x00
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#define UART_REG_RXFIFO 0x04
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#define UART_REG_TXCTRL 0x08
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#define UART_REG_RXCTRL 0x0c
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#define UART_REG_IE 0x10
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#define UART_REG_IP 0x14
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#define UART_REG_DIV 0x18
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#define UART_TXEN 0x1
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#define UART0_REG(ADDR) *((volatile uint32_t*) (UART0_BASE_ADDR + ADDR))
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/****************************************************************************
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* Platform definitions
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*****************************************************************************/
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@ -22,8 +22,6 @@ ssize_t __wrap_write(int fd, const void* ptr, size_t len)
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}
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#elif defined(BOARD_iss)
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*((uint32_t*) 0xFFFF0000) = current[jj];
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#elif defined(BOARD_TGCP)
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//TODO: implement
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#else
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while (UART0_REG(UART_REG_TXFIFO) & 0x80000000) ;
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UART0_REG(UART_REG_TXFIFO) = current[jj];
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