71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/*
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* include/asm-l/serial.h
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*/
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#ifndef _L_SERIAL_H
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#define _L_SERIAL_H
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/*
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* This assumes you have a 1.8432 MHz clock for your UART.
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*
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* It'd be nice if someone built a serial card with a 24.576 MHz
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* clock, since the 16550A is capable of handling a top speed of 1.5
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* megabits/second; but this requires the faster clock.
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*/
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#define BASE_BAUD ( 1843200 / 16 )
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/* Standard COM flags (except for COM4, because of the 8514 problem) */
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#ifdef CONFIG_SERIAL_DETECT_IRQ
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#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
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#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
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#else
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#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
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#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF
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#endif
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#define AM85C30_RES_Tx_P 0x28
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#define AM85C30_EXT_INT_ENAB 0x01
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#define AM85C30_TxINT_ENAB 0x02
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#define AM85C30_RxINT_MASK 0x18
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/* AM85C30 WRITE Registers */
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#define AM85C30_WR0 0x00
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#define AM85C30_WR1 0x01
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#define AM85C30_WR2 0x02
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#define AM85C30_WR3 0x03
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#define AM85C30_WR4 0x04
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#define AM85C30_WR5 0x05
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#define AM85C30_WR6 0x06
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#define AM85C30_WR7 0x07
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#define AM85C30_WR8 0x08
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#define AM85C30_WR9 0x09
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#define AM85C30_WR10 0x0a
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#define AM85C30_WR11 0x0b
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#define AM85C30_WR12 0x0c
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#define AM85C30_WR13 0x0d
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#define AM85C30_WR14 0x0e
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#define AM85C30_WR15 0x0f
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/* READ (Status) Registers */
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#define AM85C30_RR0 0x00
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#define AM85C30_RR1 0x01
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#define AM85C30_RR2 0x02
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#define AM85C30_RR3 0x03
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#define AM85C30_RR8 0x08
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#define AM85C30_RR10 0x0a
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#define AM85C30_RR12 0x0c
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#define AM85C30_RR13 0x0d
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#define AM85C30_D0 (0x01 << 0)
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#define AM85C30_D1 (0x01 << 1)
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#define AM85C30_D2 (0x01 << 2)
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#define AM85C30_D3 (0x01 << 3)
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#define AM85C30_D4 (0x01 << 4)
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#define AM85C30_D5 (0x01 << 5)
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#define AM85C30_D6 (0x01 << 6)
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#define AM85C30_D7 (0x01 << 7)
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#endif /* ! _L_SERIAL_H */
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