u-boot.git/include/linux/math64.h, branch v2026.01-rc2 Unnamed repository; edit this file 'description' to name the repository. lib: div64: Add support for round up of div64_u64 2022-03-09T11:34:47+00:00 Ashok Reddy Soma ashok.reddy.soma@xilinx.com 2022-02-23T14:36:04+00:00 3adc17f60bf804fd8fe25e7c20399243f26d7f49 Most of the frequencies are not rounded up to a proper number. When we need to devide these frequencies to get a number for example frequency in Mhz, we see it as one less than the actual intended value. Ex: If we want to get Mhz from frequency 199999994hz, we will calculate it using div64_u64(199999994, 1000000) and we will get 199Mhz in place of 200Mhz. Add a macro DIV64_U64_ROUND_UP for rounding up div64_u64. This is taken from linux 'commit 68600f623d69("mm: don't miss the last page because of round-off error")'. Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/f9fdcba76cd692ae436b1d7883b490e3dc207231.1645626962.git.michal.simek@xilinx.com 
Most of the frequencies are not rounded up to a proper number.
When we need to devide these frequencies to get a number for example
frequency in Mhz, we see it as one less than the actual intended value.
Ex: If we want to get Mhz from frequency 199999994hz, we will calculate
it using div64_u64(199999994, 1000000) and we will get 199Mhz in place
of 200Mhz.

Add a macro DIV64_U64_ROUND_UP for rounding up div64_u64. This is taken
from linux 'commit 68600f623d69("mm: don't miss the last page because of
round-off error")'.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/f9fdcba76cd692ae436b1d7883b490e3dc207231.1645626962.git.michal.simek@xilinx.com
lib: div64: sync with Linux 2017-04-13T13:41:10+00:00 Peng Fan peng.fan@nxp.com 2017-04-10T05:39:48+00:00 0342e335ba887817ed401e77be324e064ea7031e Sync with Linux commit ad0376eb1483b ("Merge tag 'edac_for_4.11_2'"). Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Tom Rini <trini@konsulko.com> 
Sync with Linux commit ad0376eb1483b ("Merge tag 'edac_for_4.11_2'").

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Tom Rini <trini@konsulko.com>
UBIFS: Implement read-only UBIFS support in U-Boot 2009-03-20T21:39:15+00:00 Stefan Roese sr@denx.de 2009-03-19T14:35:05+00:00 9eefe2a2b37a838558e3d213a9f5519503d0c180 The U-Boot UBIFS implementation is largely a direct copy from the current Linux version (2.6.29-rc6). As already done in the UBI version we have an "abstraction layer" to redefine or remove some OS calls (e.g. mutex_lock() ...). This makes it possible to use the original Linux code with very little changes. And by this we can better update to later Linux versions. I removed some of the Linux features that are not used in the U-Boot version (e.g. garbage-collection, write support). Signed-off-by: Stefan Roese <sr@denx.de> CC: Artem Bityutskiy <dedekind@infradead.org> CC: Adrian Hunter <ext-Adrian.Hunter@nokia.com> 
The U-Boot UBIFS implementation is largely a direct copy from the current
Linux version (2.6.29-rc6). As already done in the UBI version we have an
"abstraction layer" to redefine or remove some OS calls (e.g. mutex_lock()
...). This makes it possible to use the original Linux code with very
little changes. And by this we can better update to later Linux versions.

I removed some of the Linux features that are not used in the U-Boot
version (e.g. garbage-collection, write support).

Signed-off-by: Stefan Roese <sr@denx.de>
CC: Artem Bityutskiy <dedekind@infradead.org>
CC: Adrian Hunter <ext-Adrian.Hunter@nokia.com>