Commit 73475797 authored by Heiko Carstens's avatar Heiko Carstens
Browse files

s390/head: adjust iplstart entry point 



Move iplstart entry point to 0x200 again, instead of the middle of the ipl
code. This way even the comment describing the ccw program is correct
again.

Acked-by: default avatarVasily Gorbik <gor@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent edd4a866

arch/s390/boot/head.S

+8 −5
Original line number Diff line number Diff line
@@ -33,11 +33,13 @@ 
#define EP_OFFSET	0x10008

#define EP_STRING	"S390EP"



#define IPL_START	0x200



__HEAD



#define IPL_BS	0x730

	.org	0

	.long	0x00080000,0x80000000+iplstart	# The first 24 bytes are loaded

	.long	0x00080000,0x80000000+IPL_START	# The first 24 bytes are loaded

	.long	0x02000018,0x60000050		# by ipl to addresses 0-23.

	.long	0x02000068,0x60000050		# (a PSW and two CCWs).

	.fill	80-24,1,0x40			# bytes 24-79 are discarded !!
@@ -63,7 +65,7 @@ __HEAD 
	.long	0x020006e0,0x20000050



	.org	__LC_RST_NEW_PSW		# 0x1a0

	.quad	0,iplstart

	.quad	0,IPL_START

	.org	__LC_EXT_NEW_PSW		# 0x1b0

	.quad	0x0002000180000000,0x1b0	# disabled wait

	.org	__LC_PGM_NEW_PSW		# 0x1d0
@@ -71,8 +73,9 @@ __HEAD 
	.org	__LC_IO_NEW_PSW			# 0x1f0

	.quad	0x0002000180000000,0x1f0	# disabled wait



	.org	0x200



	.org	IPL_START

ipl_start:

	j	.Liplcont

#

# subroutine to wait for end I/O

#
@@ -158,7 +161,7 @@ __HEAD 
	.endr

	.long	0x02200050,0x00000000



iplstart:

.Liplcont:

	mvi	__LC_AR_MODE_ID,1	# set esame flag

	slr	%r0,%r0			# set cpuid to zero

	lhi	%r1,2			# mode 2 = esame (dump)