serial.inc is not used anywhere. drop it (trivial)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3454 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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#include <part/fallback_boot.h>
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/* Base Address */
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#ifndef TTYS0_BASE
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#define TTYS0_BASE 0x3f8
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#endif
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/* Baud Rate */
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#ifndef TTYS0_BAUD
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#define TTYS0_BAUD 115200
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#endif
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#if ((115200%TTYS0_BAUD) != 0)
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#error Bad ttys0 baud rate
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#endif
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/* Baud Rate Divisor */
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#define TTYS0_DIV (115200/TTYS0_BAUD)
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#define TTYS0_DIV_LO (TTYS0_DIV&0xFF)
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#define TTYS0_DIV_HI ((TTYS0_DIV >> 8)&0xFF)
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/* Line Control Settings */
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#ifndef TTYS0_LCS
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/* Set 8bit, 1 stop bit, no parity */
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#define TTYS0_LCS 0x3
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#endif
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/* Data */
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#define TTYS0_RBR (TTYS0_BASE+0x00)
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/* Control */
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#define TTYS0_TBR TTYS0_RBR
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#define TTYS0_IER (TTYS0_BASE+0x01)
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#define TTYS0_IIR (TTYS0_BASE+0x02)
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#define TTYS0_FCR TTYS0_IIR
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#define TTYS0_LCR (TTYS0_BASE+0x03)
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#define TTYS0_MCR (TTYS0_BASE+0x04)
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#define TTYS0_DLL TTYS0_RBR
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#define TTYS0_DLM TTYS0_IER
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/* Status */
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#define TTYS0_LSR (TTYS0_BASE+0x05)
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#define TTYS0_MSR (TTYS0_BASE+0x06)
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#define TTYS0_SCR (TTYS0_BASE+0x07)
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#if USE_OPTION_TABLE == 1
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.section ".rom.data"
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.type div,@object
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.size div,8
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div:
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.byte 1,2,3,6,12,24,48,96
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.previous
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#endif
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jmp serial0
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/* uses: ax, dx */
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#define TTYS0_TX_AL \
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mov %al, %ah ; \
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9: mov $TTYS0_LSR, %dx ; \
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inb %dx, %al ; \
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test $0x20, %al ; \
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je 9b ; \
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mov $TTYS0_TBR, %dx ; \
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mov %ah, %al ; \
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outb %al, %dx
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serial_init:
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/* Set 115.2Kbps,8n1 */
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/* Set 8bit, 1 stop bit, no parity, DLAB */
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mov $TTYS0_LCR, %dx
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mov $(TTYS0_LCS | 0x80), %al
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out %al, %dx
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/* set Baud Rate Divisor to 1 ==> 115200 Buad */
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#if USE_OPTION_TABLE == 1
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movb $(RTC_BOOT_BYTE+1), %al
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outb %al, $0x70
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xorl %edx,%edx
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inb $0x71, %al
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andb $7,%al
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movb %al,%dl
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movb div(%edx),%al
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mov $TTYS0_DLL, %dx
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out %al, %dx
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mov $TTYS0_DLM, %dx
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xorb %al,%al
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out %al, %dx
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#else
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mov $TTYS0_DLL, %dx
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mov $TTYS0_DIV_LO, %al
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out %al, %dx
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mov $TTYS0_DLM, %dx
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mov $TTYS0_DIV_HI, %al
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out %al, %dx
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#endif
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/* Disable DLAB */
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mov $TTYS0_LCR, %dx
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mov $(TTYS0_LCS & 0x7f), %al
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out %al, %dx
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RETSP
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serial0:
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CALLSP(serial_init)
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