Commit graph

14370 commits

Author SHA1 Message Date
Wolfgang Denk
f053432a72 board/mbx8xx/mbx8xx.c: Fix GCC 4.6 build warnings
Fix:
mbx8xx.c: In function 'mbx_init':
mbx8xx.c:127:15: warning: variable 'refclock' set but not used
[-Wunused-but-set-variable]
mbx8xx.c: In function 'board_get_cpufreq':
mbx8xx.c:231:2: warning: dereferencing type-punned pointer will break
strict-aliasing rules [-Wstrict-aliasing]
mbx8xx.c: In function 'get_reffreq':
mbx8xx.c:242:2: warning: dereferencing type-punned pointer will break
strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:14:36 +01:00
Wolfgang Denk
4d4aebaa01 mpc8xx/spi.c: Fix GCC 4.6 build warnings
Fix:
spi.c: In function 'spi_init_f':
spi.c:144:21: warning: variable 'iop' set but not used
[-Wunused-but-set-variable]
spi.c:142:22: warning: variable 'cpi' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:14:32 +01:00
Wolfgang Denk
5c10419cea net/net.c: Fix GCC 4.6 build warning
Fix:
net.c: In function 'CDPHandler':
net.c:1083:8: warning: variable 'applid' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:14:29 +01:00
Wolfgang Denk
250b66e2ce board/genietv/flash.c: Fix flash initialization
The GENIETV has only one NOR flash bank.  Remove all code trying to
deal with a second bank.  This also fixes a number of GCC 4.6 build
warnings:
flash.c:65:12: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:66:12: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:69:12: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:183:2: warning: format '%x' expects argument of type 'unsigned
int', but argument 2 has type '

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:14:25 +01:00
Wolfgang Denk
098a8a83ea board/genietv/flash.c: CodingStyle cleanup
Make (mostly) checkpatch clean (don't convert to use I/O accessors yet,
so there will be "Use of volatile is usually wrong" warnings left.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:14:21 +01:00
Wolfgang Denk
28c665d4d5 board/etx094/flash.c: Fix flash initialization
The ETX094 has only one NOR flash bank.  Remove all code trying to
deal with a second bank.  This also fixes a number of GCC 4.6 build
warnings:
flash.c: In function 'flash_init':
flash.c:68:13: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:70:13: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:72:13: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:128:13: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:129:13: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:133:12: warning: array subscript is above array bounds
[-Warray-bounds]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:14:17 +01:00
Wolfgang Denk
d0bb8d485e board/etx094/flash.c: CodingStyle cleanup
Make (mostly) checkpatch clean (don't convert to use I/O accessors yet,
so there will be "Use of volatile is usually wrong" warnings left.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:14:14 +01:00
Wolfgang Denk
937943d3f0 mpc8xx/i2c.c: replace PRINTD() by debug()
This also fixes some GCC 4.6 build warnings like:
warning: variable 'txbd' set but not used [-Wunused-but-set-variable]
warning: variable 'rxbd' set but not used [-Wunused-but-set-variable]

Signed-off-by: WOlfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
2011-11-07 22:14:10 +01:00
Wolfgang Denk
09e68ffadd mpc8xx/i2c.c: CodungStyle cleanup
Make (mostly) checkpatch-clean

We don't acctually change the code (like convert to use I/O
accessors), so there will be some remaining "Use of volatile"
warnings from checkpatch.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
2011-11-07 22:14:06 +01:00
Wolfgang Denk
e1196b8005 board/eltec/mhpc/flash.c: Fix GCC 4.6 build warning
Fix:
flash.c: In function 'write_buff':
flash.c:314:6: warning: variable 'count' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Frank Gottschling <fgottschling@eltec.de>
2011-11-07 22:14:02 +01:00
Wolfgang Denk
b8221a3b89 board/kup/kup4k/kup4k.c: Fix GCC 4.6 build warning
Fix:
kup4k.c: In function 'initdram':
kup4k.c:155:19: warning: variable 'mod' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Klaus Heydeck <heydeck@kieback-peter.de>
2011-11-07 22:13:09 +01:00
Wolfgang Denk
13039eb1fa ICU862: Fix incorrect flash handling
There is only one bank of NOR flash memory on ICU862 boards.
Remove code that attempts to deal with a second bank.

This also fixes build warnings:
flash.c: In function 'flash_init':
flash.c:120:12: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:121:12: warning: array subscript is above array bounds
[-Warray-bounds]
flash.c:124:12: warning: array subscript is above array bounds
[-Warray-bounds]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:13:05 +01:00
Wolfgang Denk
bae65019d7 mpc8xx/cpu.c: Fix GCC 4.6 build warnings
Fix:
cpu.c: In function 'check_CPU':
cpu.c:188:8: warning: variable 'mid' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:13:01 +01:00
Wolfgang Denk
f6b60bca6c board/r360mpi/pcmcia.c: Fix GCC 4.6 build warnings
Fix:
pcmcia.c: In function 'pcmcia_hardware_enable':
pcmcia.c:22:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]
pcmcia.c: In function 'pcmcia_hardware_disable':
pcmcia.c:130:25: warning: variable 'pcmp' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:12:57 +01:00
Wolfgang Denk
964f0df31d board/netta/pcmcia.c: Fix GCC 4.6 build warnings
Fix:
pcmcia.c: In function 'cfg_ports':
pcmcia.c:151:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:150:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]
pcmcia.c: In function 'pcmcia_hardware_enable':
pcmcia.c:179:25: warning: variable 'sysp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:177:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:176:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]
pcmcia.c: In function 'pcmcia_hardware_disable':
pcmcia.c:271:25: warning: variable 'pcmp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:270:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]
pcmcia.c: In function 'pcmcia_voltage_set':
pcmcia.c:303:9: warning: variable 'sreg' set but not used
[-Wunused-but-set-variable]
pcmcia.c:300:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:12:53 +01:00
Wolfgang Denk
a1821971cd board/netta/codec.c: Fix GCC 4.6 build warnings
Fix:
codec.c: In function 's_write_BR':
codec.c:1389:15: warning: variable 'v' set but not used
[-Wunused-but-set-variable]
codec.c: In function 's_write_OR':
codec.c:1400:15: warning: variable 'v' set but not used
[-Wunused-but-set-variable]
codec.c: In function 's_write_NR':
codec.c:1411:15: warning: variable 'v' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:12:49 +01:00
Wolfgang Denk
01d267efc1 board/mbx8xx/pcmcia.c: Fix GCC 4.6 build warnings
Fix:
pcmcia.c: In function 'pcmcia_hardware_enable':
pcmcia.c:83:25: warning: variable 'sysp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:81:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:80:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:12:45 +01:00
Wolfgang Denk
561d01a5ee board/manroland/uc100/pcmcia.c: Fix GCC 4.6 build warnings
Fix:
pcmcia.c: In function 'pcmcia_voltage_set':
pcmcia.c:158:25: warning: variable 'pcmp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:157:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:12:41 +01:00
Wolfgang Denk
700a3748a6 board/lwmon/pcmcia.c: Fix GCC 4.6 build warnings
Fix:
pcmcia.c: In function 'pcmcia_hardware_enable':
pcmcia.c:33:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]
pcmcia.c:32:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]
pcmcia.c: In function 'pcmcia_voltage_set':
pcmcia.c:174:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:12:38 +01:00
Wolfgang Denk
ef744ac92e board/kup/common/pcmcia.c: Fix GCC 4.6 compiler warnings
Fix:
../common/pcmcia.c: In function 'pcmcia_hardware_enable':
../common/pcmcia.c:23:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]
../common/pcmcia.c: In function 'pcmcia_voltage_set':
../common/pcmcia.c:152:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Klaus Heydeck <heydeck@kieback-peter.de>
2011-11-07 22:12:34 +01:00
Wolfgang Denk
15979b1483 board/icu862/pcmcia.c: Fix GCC 4.6 build warning
Fix:
pcmcia.c: In function 'cfg_port_B':
pcmcia.c:21:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]
pcmcia.c: In function 'pcmcia_hardware_enable':
pcmcia.c:50:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]
pcmcia.c: In function 'pcmcia_voltage_set':
pcmcia.c:191:20: warning: variable 'immap' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:11:53 +01:00
Wolfgang Denk
907ecac7e1 board/c2mon/pcmcia.c: Fix GCC 4.6 build warning
Fix:
pcmcia.c: In function 'pcmcia_voltage_set':
pcmcia.c:202:21: warning: variable 'cp' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:11:49 +01:00
Wolfgang Denk
045a96727b drivers/pcmcia/mpc8xx_pcmcia.c: Fix GCC 4.6 build warning
Fix:
mpc8xx_pcmcia.c: In function 'pcmcia_on':
mpc8xx_pcmcia.c:76:8: warning: variable 'slotbit' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:11:46 +01:00
Wolfgang Denk
90357f1493 mpc8xx/fec.c: Fix GCC 4.6 build warnings
Fix:
fec.c: In function 'fec_pin_init':
fec.c:381:18: warning: variable 'fecp' set but not used
[-Wunused-but-set-variable]
fec.c: In function 'fec8xx_miiphy_write':
fec.c:1013:8: warning: variable 'rdreg' set but not used
[-Wunused-but-set-variable]

Note: The code was slightly rearranged, but no functional changes
attempted, i. e. no conversion to use I/O accessors.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:11:42 +01:00
Wolfgang Denk
a9a62af1f9 drivers/video/cfb_console.c:Fix GCC 4.6 build warning
Silence this warning:
cfb_console.c: In function 'video_logo':
cfb_console.c:1563:18: warning: variable 'y_off' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
2011-11-07 22:11:38 +01:00
Wolfgang Denk
e012d97ad4 board/tqc/tqm5200/cam5200_flash.c: Fix GCC 4.6 build warning
Fix:
cam5200_flash.c: In function 'flash_erase_32':
cam5200_flash.c:282:24: warning: variable 'l_sect' set but not used
[-Wunused-but-set-variable]
cam5200_flash.c: In function 'flash_erase_16':
cam5200_flash.c:612:24: warning: variable 'l_sect' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:11:35 +01:00
Wolfgang Denk
7df80ac92d board/esd/pf5200/pf5200.c: Fix GCC 4.6 build warning
Fix:
pf5200.c: In function 'do_phypower':
pf5200.c:330:6: warning: variable 'status' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
2011-11-07 22:11:31 +01:00
Wolfgang Denk
0333185352 board/esd/cpci5200/strataflash.c: Fix GCC 4.6 build warning
Fix:
strataflash.c: In function 'flash_write_cfiword':
strataflash.c:681:11: warning: variable 'ctladdr' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
2011-11-07 22:11:28 +01:00
Wolfgang Denk
17834a5c63 PM520: add missing enable_interrupts()
The code disabled interrupts in several locations, without re-enabling
them again.  Fix this.

While we are at it, also fix a GCC 4.6 build warning:
flash.c: In function 'flash_erase':
flash.c:373:21: warning: variable 'last' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Josef Wagner <Wagner@Microsys.de>
2011-11-07 22:11:24 +01:00
Wolfgang Denk
6471ada534 fs/fat/fat.c: Fix GCC 4.6 build warning
Fix:
fat.c: In function 'fat_register_device':
fat.c:74:19: warning: variable 'info' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:11:20 +01:00
Wolfgang Denk
40ac78a949 drivers/video/videomodes.c: fix GCC 4.6 build warning
Fix:
videomodes.c: In function 'video_get_params':
videomodes.c:162:13: warning: variable 't' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
2011-11-07 22:09:58 +01:00
Wolfgang Denk
b633741bcd drivers/rtc/rv3029.c: fix GCC 4.6 build warnings
Fix:
rv3029.c: In function 'rtc_set':
rv3029.c:98:6: warning: variable 'ret' set but not used
[-Wunused-but-set-variable]
rv3029.c: In function 'set_eere_bit':
rv3029.c:131:6: warning: variable 'ret' set but not used
[-Wunused-but-set-variable]
rv3029.c: In function 'wait_eebusy':
rv3029.c:149:9: warning: variable 'ret' set but not used
[-Wunused-but-set-variable]
rv3029.c: In function 'rtc_reset':
rv3029.c:165:6: warning: variable 'ret' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:09:54 +01:00
Wolfgang Denk
397b40caf2 drivers/rtc/ds3231.c: fix GCC 4.6 build warnings
Fix:
ds3231.c: In function 'rtc_get':
ds3231.c:90:52: warning: variable 'control' set but not used
[-Wunused-but-set-variable]

Fix is done by switching to standard debug() instead of custom macro.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:09:50 +01:00
Wolfgang Denk
55b97886f8 board/mcc200/auto_update.c: fixx GCC 4.6 build warnings
Fix:
auto_update.c: In function 'do_auto_update':
auto_update.c:344:48: warning: variable 'got_ctrlc' set but not used
[-Wunused-but-set-variable]
auto_update.c:344:18: warning: variable 'bitmap_first' set but not
used [-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:09:46 +01:00
Wolfgang Denk
a442173048 arch/powerpc/cpu/mpc5xxx/usb_ohci.c: fix GCC 4.6 build warnings
Fix:
usb_ohci.c: In function 'dl_transfer_length':
usb_ohci.c:751:8: warning: variable 'tdINFO' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:09:42 +01:00
Wolfgang Denk
65766f3852 board/tqc/tqm5200/cmd_stk52xx.c: fix GC 4.6 build warnings
Fix:
cmd_stk52xx.c: In function 'spi_transmit':
cmd_stk52xx.c:85:6: warning: variable 'dummy' set but not used
[-Wunused-but-set-variable]
cmd_stk52xx.c: In function 'i2s_play_wave':
cmd_stk52xx.c:199:3: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:09:39 +01:00
Wolfgang Denk
1c2931d4ec arch/powerpc/lib/board.c: fix build warning
Fix:
board.c: In function 'board_init_r':
board.c:633:8: warning: unused variable 's' [-Wunused-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:09:35 +01:00
Wolfgang Denk
9b998b0c52 arch/powerpc/lib/board.c: make (mostly) checkpatch-clean
CodingStyle cleanup.

Accepted (in this cleanup) checkpatch messages:

- externs should be avoided
  (to be cleaned up later)
- no spaces at the start of a line
  (accepted in multi-line #if's)
- Macros with complex values
  (false reports)
- do not use assignment in if condition
  (accepted in one place, where avoiding it would have required an
  additional level of nesting, resulting in less readable code)

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:09:31 +01:00
Wolfgang Denk
9306749752 arch/powerpc/cpu/mpc5xxx/i2c.c: fix GC 4.6 build warnings
Fix:
i2c.c: In function 'wait_for_bb':
i2c.c:104:16: warning: variable 'temp' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
2011-11-07 22:09:27 +01:00
Wolfgang Denk
ee6ed89c5b board/mpl/common/flash.c: fix GCC 4.6 build warning
Fix:
../common/flash.c: In function 'flash_erase':
../common/flash.c:603:24: warning: variable 'l_sect' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Denis Peter <d.peter@mpl.ch>
2011-11-07 22:09:23 +01:00
Daniel Schwierzeck
b6a467d73d config.mk: use memoization in cc-option macro to speed up compilation
Apply memoization to cc-option macro by caching the results of the
gcc calls. This macro is called very often so using cached results
leads to faster compilation times.

The old behaviour can be restored by defining the config option
CONFIG_CC_OPT_CACHE_DISABLE=y.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2011-11-07 21:56:11 +01:00
Mike Frysinger
fec79acc86 sandbox: drop unused return
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Simon Glass <sjg@chromium.org>
2011-11-03 22:35:25 +01:00
Mike Frysinger
ab06a758b9 sandbox: put stdin into raw mode
This allows us to act like a serial device: we get tab chars and CTRL+C
and respond appropriately.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Tested-by: Simon Glass <sjg@chromium.org>
2011-11-03 22:35:21 +01:00
Mike Frysinger
ec8f0b9024 serial: sandbox: use ssize_t to match os_read
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Simon Glass <sjg@chromium.org>
2011-11-03 22:35:16 +01:00
Mike Frysinger
5778d54afc serial: sandbox: optimize puts
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Simon Glass <sjg@chromium.org>
2011-11-03 22:35:12 +01:00
Mike Frysinger
ed0fc4b172 sandbox/tegra2: fix typo in autocomplete define
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Simon Glass <sjg@chromium.org>
2011-11-03 22:35:06 +01:00
Simon Glass
355a835747 sandbox: Change md command to use map_physmem
Sandbox wants to support commands which use memory. The map_physmen()
call provides this feature, so should be used more consistently in
U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Tested-by: Matthias Weisser <weisserm@arcor.de>
2011-11-03 22:35:01 +01:00
Simon Glass
b5728756e8 sandbox: Adjust Makefile so that standalone/api are not built
The check for sandbox architecture is too early in the Makefile, so
standalone and api are built regardless. This moves the check until
after autoconf.mk has been read.

This fixes a build breakage.

Signed-off-by: Simon Glass <sjg@chromium.org>
2011-11-03 22:34:57 +01:00
Anton staaf
cceea66bfe sandbox: Add asm/cache.h for sandbox
This file is required by the new DMA buffer alignment macro.

Signed-off-by: Anton Staaf <robotboy@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-11-03 22:34:49 +01:00
Wolfgang Denk
cca4e4aec1 Reduce build times
U-Boot Makefiles contain a number of tests for compiler features etc.
which so far are executed again and again.  On some architectures
(especially ARM) this results in a large number of calls to gcc.

This patch makes sure to run such tests only once, thus largely
reducing the number of "execve" system calls.

Example: number of "execve" system calls for building the "P2020DS"
(Power Architecture) and "qong" (ARM) boards, measured as:
	-> strace -f -e trace=execve -o /tmp/foo ./MAKEALL <board>
	-> grep execve /tmp/foo | wc -l

	Before: After:	Reduction:
==================================
P2020DS 20555	15205	-26%
qong	31692	14490	-54%

As a result, built times are significantly reduced, typically by
30...50%.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Andy Fleming <afleming@gmail.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Albert Aribaud <albert.aribaud@free.fr>
cc: Graeme Russ <graeme.russ@gmail.com>
cc: Mike Frysinger <vapier@gentoo.org>
Tested-by: Graeme Russ <graeme.russ@gmail.com>
Tested-by: Matthias Weisser <weisserm@arcor.de>
Tested-by: Sanjeev Premi <premi@ti.com>
Tested-by: Simon Glass <sjg@chromium.org>
Tested-by: Macpaul Lin <macpaul@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-11-03 20:44:58 +01:00