# git rev-parse -q --verify 6aa254f8d119df235963fd718d145317512963ac^{commit} 6aa254f8d119df235963fd718d145317512963ac already have revision, skipping fetch # git checkout -q -f -B kisskb 6aa254f8d119df235963fd718d145317512963ac # git clean -qxdf # < git log -1 # commit 6aa254f8d119df235963fd718d145317512963ac # Author: Cédric Le Goater # Date: Fri Oct 4 13:24:36 2019 +0200 # # mtd: spi-nor: aspeed: Add read training support for the AST2600 # # The read training algorithm consists of finding the appropriate read # timing delays for the HCLK dividers in range [ 2 - 5 ] and store the # results in the Read Timing Compensation register. The previous AST2500 # and AST2400 SoCs were covering a broader HCLK range [ 1 - 5 ] because # the AHB frequency was lower. # # The algorithm first reads a golden buffer at low speed and then # performs reads with different clocks and delay cycle settings to find # a breaking point. This selects the default clock frequency for the CEx # control register. The current settings are bit optimistic as we pick # the first delay giving good results. A safer approach would be to # determine an interval and choose the middle value. We might change the # approach depending on the results on other systems. # # Signed-off-by: Cédric Le Goater # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 6aa254f8d119df235963fd718d145317512963ac # < make -s -j 48 ARCH=arm O=/kisskb/build/cdrx_corgi_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- corgi_defconfig # make -s -j 48 ARCH=arm O=/kisskb/build/cdrx_corgi_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:121:34: warning: 'levelspread[]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[]' was declared here /kisskb/src/crypto/sha512_generic.c: In function 'sha512_transform': /kisskb/src/crypto/sha512_generic.c:149:1: warning: the frame size of 1188 bytes is larger than 1024 bytes [-Wframe-larger-than=] /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here Completed OK # rm -rf /kisskb/build/cdrx_corgi_defconfig_arm # Build took: 0:00:51.754296