# git rev-parse -q --verify cbf5c33ba2f308fc9a42c947d3478698d10fd205^{commit}
cbf5c33ba2f308fc9a42c947d3478698d10fd205
already have revision, skipping fetch
# git checkout -q -f -B kisskb cbf5c33ba2f308fc9a42c947d3478698d10fd205
# git clean -qxdf
# < git log -1
# commit cbf5c33ba2f308fc9a42c947d3478698d10fd205
# Author: Cédric Le Goater <clg@kaod.org>
# Date:   Fri Jun 22 12:13:04 2018 +0200
# 
#     mtd: spi-nor: aspeed: introduce optimized settings for fast reads
#     
#     Better settings for fast reads are looked for by implementing a SPI
#     Timing calibration sequence described in the Aspeed SoC specification
#     document. The code is based on the OpenPOWER pflash tool and a similar
#     sequence using DMAs can be found in the SDK U-Boot.
#     
#     The SPI calibration performs a loop on different SPI clock rates
#     (dividers of the AHB clock rates) and on different input delay cycles
#     for each SPI clock rates. The successive read results are compared to
#     a golden buffer, read at low speed, to select the fastest read
#     settings for the chip.
#     
#     The "spi-max-frequency" property is used to cap the optimize read
#     algorithm on some devices or controllers for which we want a safe
#     setting, on the FMC controller chips for instance.
#     
#     It can also be deactivated at boot time with a kernel parameter
#     'optimize_read', but that was never used on the field.
#     
#     Signed-off-by: Cédric Le Goater <clg@kaod.org>
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version
# < git log --format=%s --max-count=1 cbf5c33ba2f308fc9a42c947d3478698d10fd205
# < make -s -j 48 ARCH=mips O=/kisskb/build/cdrx_mips-allmodconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# Added to kconfig CONFIG_MIPS_CPS_NS16550_BASE=0x1b0003f8
# Added to kconfig CONFIG_MIPS_CPS_NS16550_SHIFT=0
# Added to kconfig 
# yes \n | make -s -j 48 ARCH=mips O=/kisskb/build/cdrx_mips-allmodconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 48 ARCH=mips O=/kisskb/build/cdrx_mips-allmodconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-objcopy: architecture UNKNOWN! unknown
/kisskb/src/net/bpfilter/Makefile:31: recipe for target 'net/bpfilter/bpfilter_umh.o' failed
make[3]: *** [net/bpfilter/bpfilter_umh.o] Error 1
make[3]: *** Waiting for unfinished jobs....
/kisskb/src/scripts/Makefile.build:558: recipe for target 'net/bpfilter' failed
make[2]: *** [net/bpfilter] Error 2
make[2]: *** Waiting for unfinished jobs....
/kisskb/src/Makefile:1034: recipe for target 'net' failed
make[1]: *** [net] Error 2
make[1]: *** Waiting for unfinished jobs....
/kisskb/src/drivers/input/joystick/analog.c:176:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^
/kisskb/src/drivers/spi/spi-sh-msiof.c:77:0: warning: "STR" redefined
 #define STR 0x40 /* Status Register */
 ^
In file included from /kisskb/src/arch/mips/include/asm/mach-generic/spaces.h:15:0,
                 from /kisskb/src/arch/mips/include/asm/addrspace.h:13,
                 from /kisskb/src/arch/mips/include/asm/barrier.h:11,
                 from /kisskb/src/include/linux/compiler.h:245,
                 from /kisskb/src/arch/mips/include/asm/bitops.h:16,
                 from /kisskb/src/include/linux/bitops.h:38,
                 from /kisskb/src/include/linux/bitmap.h:8,
                 from /kisskb/src/drivers/spi/spi-sh-msiof.c:14:
/kisskb/src/arch/mips/include/asm/mipsregs.h:29:0: note: this is the location of the previous definition
 #define STR(x) __STR(x)
 ^
In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:41:0,
                 from /kisskb/src/drivers/watchdog/sb_wdog.c:58:
/kisskb/src/arch/mips/include/asm/sibyte/bcm1480_scd.h:274:0: warning: "M_SPC_CFG_CLEAR" redefined
 #define M_SPC_CFG_CLEAR   M_BCM1480_SPC_CFG_CLEAR
 ^
In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:40:0,
                 from /kisskb/src/drivers/watchdog/sb_wdog.c:58:
/kisskb/src/arch/mips/include/asm/sibyte/sb1250_scd.h:405:0: note: this is the location of the previous definition
 #define M_SPC_CFG_CLEAR  _SB_MAKEMASK1(32)
 ^
In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:41:0,
                 from /kisskb/src/drivers/watchdog/sb_wdog.c:58:
/kisskb/src/arch/mips/include/asm/sibyte/bcm1480_scd.h:275:0: warning: "M_SPC_CFG_ENABLE" redefined
 #define M_SPC_CFG_ENABLE  M_BCM1480_SPC_CFG_ENABLE
 ^
In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:40:0,
                 from /kisskb/src/drivers/watchdog/sb_wdog.c:58:
/kisskb/src/arch/mips/include/asm/sibyte/sb1250_scd.h:406:0: note: this is the location of the previous definition
 #define M_SPC_CFG_ENABLE _SB_MAKEMASK1(33)
 ^
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 48 ARCH=mips O=/kisskb/build/cdrx_mips-allmodconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/cdrx_mips-allmodconfig_mipsel
# Build took: 0:11:06.790390