Bare Metal: Simple serial UART2 console print enabler file [sprint.c/sprint.h]

#include "sprint.h"

void sprint(const char str[])
{
int j = 0;
uart_reg *puart;

puart = (uart_reg *) UART3_REG_BASE;


while (str[j] != '\0')
{
while (!(puart->UART_LSR & UART_TXFIFO_EMPTY))
;

puart->UART_THR = str[j];
j++;
}
}

and its header file

#ifndef __SPRINT_H

#define __SPRINT_H

#define UART3_REG_BASE 0x49020000

#define UART3_OP_MODE 0x3

#define UART3_B_MODE 0xBF

#define UART_RST_MASK 0x2

#define BAUD_115200 0x1A

#define UART_16X_MODE 0xFFFFFFF0

#define UART_TXFIFO_EMPTY 0x00000020

extern void sprint(const char str[]);

typedef struct {

unsigned int UART_THR;

unsigned int UART_IER;

unsigned int UART_FCR;

unsigned int UART_LCR;

unsigned int UART_MCR;

unsigned int UART_LSR;

unsigned int UART_MSR_TCR;

unsigned int UART_SPR_TLR;

unsigned int UART_MDR1;

unsigned int UART_MDR2;

unsigned int UART_SFLSR;

unsigned int UART_TXFLL;

unsigned int UART_RESUME;

unsigned int UART_TXFLH;

unsigned int UART_RXFLL;

unsigned int UART_SFREGL;

unsigned int UART_RXFLH;

unsigned int UART_SFREGH;

unsigned int UART_BLR;

unsigned int UART_ACREG;

unsigned int UART_SCR;

unsigned int UART_SSR;

unsigned int UART_EBLR;

unsigned int UART_SYSC;

unsigned int UART_SYSS;

unsigned int UART_WER;

unsigned int UART_CFPS;

} uart_reg;

#endif