Age | Commit message (Collapse) | Author | |
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2014-08-26 | armv7: Move Exynos from 'cpu' to 'soc'. | Hung-Te Lin | |
The Exynos family and most ARM products are SoC, not just CPU. We used to put ARM code in src/cpu to avoid polluting the code base for what was essentially an experiment at the time. Now that it's past the experimental phase and we're going to see more SoCs (including intel/baytrail) in coreboot. Change-Id: I5ea1f822664244edf5f77087bc8018d7c535f81c Reviewed-on: https://chromium-review.googlesource.com/170891 Tested-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Hung-Te Lin <hungte@chromium.org> (cherry picked from commit c8bb8fe0b20be37465f93c738d80e7e43033670a) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6739 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> | |||
2013-12-21 | exynos5250: Add a pinmux function to set up i2s bus 0 | Gabe Black | |
This bus is hooked up on snow and, as it's the only bus hooked up on some other boards, having it available in firmware to test is handy. Change-Id: Icb48b9af4a67d382bd6fbce1e4c6a320d811d365 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/64877 Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> Commit-Queue: Stefan Reinauer <reinauer@google.com> Tested-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/4438 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> | |||
2013-07-10 | exynos5250: De-switch-ify the pinmux configuration code. | Gabe Black | |
The pinmux code for the exynos5250 was all bundled into a single, large function which contained a switch statement that would set up the pins for different peripherals within the SOC. There was also a "flags" parameter, the meaning of which, if any, depended on which peripheral was being set up. There are several problems with that approach. First, the code is inefficient in both time and space. The caller knows which peripheral it wants to set up, but that information is encoded in a constant which has to be unpacked within the function before any action can be taken. If there were a function per peripheral, that information would be implicit. Also, the compiler and linker are forced to include the entire function with all its cases even if most of them are never called. If each peripheral was a function, the unused ones could be garbage collected. Second, it would be possible to try to set up a peripheral which that function doesn't know about, so there has to be additional error checking/handling. If each peripheral had a function, the fact that there was a function to call at all would imply that the call would be understood. Third, the flags parameter is fairly opaque, usually doesn't do anything, and sometimes has to have multiple values embedded in it. By having separate functions, you can have only the parameters you actually want, give them names that make sense, and pass in values directly. Fourth, having one giant function pretends to be a generic, portable API, but in reality, the only way it's useful is to call it with constants which are specific to a particular implementation of that API. It's highly unlikely that a bit of code will need to set up a peripheral but have no idea what that peripheral actually is. Call sights for the prior pinmux API have been updated. Also, pinmux initialization within the i2c driver was moved to be in the board setup code where it really probably belongs. The function block that implements the I2C controller may be shared between multiple SOCs (and in fact is), and those SOCs may have different pinmuxes (which they do). Other places this same sort of change can be made are the pinmux code for the 5420, and the clock configuration code for both the 5250 and the 5420. Change-Id: Ie9133a895e0dd861cb06a6d5f995b8770b6dc8cf Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3673 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> | |||
2013-07-10 | ARMv7: De-uboot-ify Exynos5250 code | Stefan Reinauer | |
When starting the Exynos5250 port, a lot of unneeded u-boot code was imported. This is an attempt to get rid of a lot of unneeded code before the port is used as a basis for further ARM ports. There is a lot more that can be done, including cleaning up the 5250's Kconfig file. Change-Id: I2d88676c436eea4b21bcb62f40018af9fabb3016 Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3642 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> | |||
2012-11-28 | Add .h files for samsung exynos 5250 | Ronald G. Minnich | |
Per a conversation with Stefan, these chip-dependent files are moved to the src tree, in the manner of other chips (north and southbridge). Change-Id: I12645ba05eb241eda200ed06cb633541a6a98119 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Signed-off-by: David Hendricks <dhendrix@chromium.org> Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Reviewed-on: http://review.coreboot.org/1925 Tested-by: build bot (Jenkins) |