32 lines
1.0 KiB
C
32 lines
1.0 KiB
C
#ifndef _RPI_SERIAL_H
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#define _RPI_SERIAL_H
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/* UART register map */
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//#define OMAP3_DM37XX_DEBUG_UART_BASE 0x49020000 /* UART3 physical address */
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//#define OMAP3_AM335X_DEBUG_UART_BASE 0x44E09000 /* UART0? physical address */
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#define RPI_BCM2835_DEBUG_UART_BASE 0x20201000 /* miniUART - uses PL011 module */
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/* UART registers */
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//#define OMAP3_THR 0x000 /* Transmit holding register */
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//#define OMAP3_LSR 0x014 /* Line status register */
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//#define OMAP3_SSR 0x044 /* Supplementary status register */
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#define RPI_UART_DR 0 // data register
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#define RPI_UART_FR 0x18 // flag register
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/* Line status register fields */
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//#define OMAP3_LSR_TEMT 0x40 /* Transmitter empty */
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//#define OMAP3_LSR_THRE 0x20 /* Transmit-hold-register empty */
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#define RPI_UARTFR_TXFF (1 << 5) // tramit FIFO full
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/* Supplementary status register fields */
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//#define OMAP3_SSR_TX_FIFO_FULL (1 << 0) /* Transmit FIFO full */
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#ifndef __ASSEMBLY__
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void omap3_ser_init();
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void omap3_ser_putc(char c);
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#endif /* __ASSEMBLY__ */
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#endif /* _RPI_SERIAL_H */
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