Makefile revision 145515 
1# $FreeBSD: head/sys/boot/i386/boot0/Makefile 145515 2005-04-25 17:41:35Z ru $
2
3PROG?=	boot0
4STRIP=
5BINMODE=${NOBINMODE}
6NO_MAN=
7SRCS=	${PROG}.S
8
9# The default set of flags compiled into boot0.  This enables update (writing
10# the modified boot0 back to disk after running so that the selection made is
11# saved), packet mode (detect and use the BIOS EDD extensions if we try to
12# boot past the 1024 cylinder liimt), and booting from all valid slices.
13BOOT_BOOT0_FLAGS?=	0x8f
14
15# The number of timer ticks to wait for a keypress before assuming the default
16# selection.  Since there are 18.2 ticks per second, the default value of
17# 0xb6 (182d) corresponds to 10 seconds.
18BOOT_BOOT0_TICKS?=	0xb6
19
20# The base address that we the boot0 code to to run it.  Don't change this
21# unless you are glutton for punishment.
22BOOT_BOOT0_ORG?=	0x600
23
24# Comm settings for boot0sio.
25# Bit(s) Description
26# 7-5    data rate (110,150,300,600,1200,2400,4800,9600 bps)
27# 4-3    parity (00 or 10 = none, 01 = odd, 11 = even)
28# 2      stop bits (set = 2, clear = 1)
29# 1-0    data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
30.if !defined(BOOT_BOOT0_COMCONSOLE_SPEED)
31BOOT_COMCONSOLE_SPEED?=	9600
32.if ${BOOT_COMCONSOLE_SPEED} == 9600
33BOOT_BOOT0_COMCONSOLE_SPEED=	"7 << 5 + 3"
34.elif ${BOOT_COMCONSOLE_SPEED} == 4800
35BOOT_BOOT0_COMCONSOLE_SPEED=	"6 << 5 + 3"
36.elif ${BOOT_COMCONSOLE_SPEED} == 2400
37BOOT_BOOT0_COMCONSOLE_SPEED=	"5 << 5 + 3"
38.elif ${BOOT_COMCONSOLE_SPEED} == 1200
39BOOT_BOOT0_COMCONSOLE_SPEED=	"4 << 5 + 3"
40.elif ${BOOT_COMCONSOLE_SPEED} == 600
41BOOT_BOOT0_COMCONSOLE_SPEED=	"3 << 5 + 3"
42.elif ${BOOT_COMCONSOLE_SPEED} == 300
43BOOT_BOOT0_COMCONSOLE_SPEED=	"2 << 5 + 3"
44.elif ${BOOT_COMCONSOLE_SPEED} == 150
45BOOT_BOOT0_COMCONSOLE_SPEED=	"1 << 5 + 3"
46.elif ${BOOT_COMCONSOLE_SPEED} == 110
47BOOT_BOOT0_COMCONSOLE_SPEED=	"0 << 5 + 3"
48.else
49BOOT_BOOT0_COMCONSOLE_SPEED=	"7 << 5 + 3"
50.endif
51.endif
52
53CFLAGS+=-DFLAGS=${BOOT_BOOT0_FLAGS} \
54	-DTICKS=${BOOT_BOOT0_TICKS} \
55	-DCOMSPEED=${BOOT_BOOT0_COMCONSOLE_SPEED}
56
57LDFLAGS=-N -e start -Ttext ${BOOT_BOOT0_ORG} -Wl,-S,--oformat,binary
58
59.include <bsd.prog.mk>
60