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Simon Glass <sjg@chromium.org> says: When the SPL build-phase was first created it was designed to solve a particular problem (the need to init SDRAM so that U-Boot proper could be loaded). It has since expanded to become an important part of U-Boot, with three phases now present: TPL, VPL and SPL Due to this history, the term 'SPL' is used to mean both a particular phase (the one before U-Boot proper) and all the non-proper phases. This has become confusing. For a similar reason CONFIG_SPL_BUILD is set to 'y' for all 'SPL' phases, not just SPL. So code which can only be compiled for actual SPL, for example, must use something like this: #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) In Makefiles we have similar issues. SPL_ has been used as a variable which expands to either SPL_ or nothing, to chose between options like CONFIG_BLK and CONFIG_SPL_BLK. When TPL appeared, a new SPL_TPL variable was created which expanded to 'SPL_', 'TPL_' or nothing. Later it was updated to support 'VPL_' as well. This series starts a change in terminology and usage to resolve the above issues: - The word 'xPL' is used instead of 'SPL' to mean a non-proper build - A new CONFIG_XPL_BUILD define indicates that the current build is an 'xPL' build - The existing CONFIG_SPL_BUILD is changed to mean SPL; it is not now defined for TPL and VPL phases - The existing SPL_ Makefile variable is renamed to SPL_ - The existing SPL_TPL Makefile variable is renamed to PHASE_ It should be noted that xpl_phase() can generally be used instead of the above CONFIGs without a code-space or run-time penalty. This series does not attempt to convert all of U-Boot to use this new terminology but it makes a start. In particular, renaming spl.h and common/spl seems like a bridge too far at this point. The series is fully bisectable. It has also been checked to ensure there are no code-size changes on any commit. |
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| .. | ||
| adc | ||
| arm | ||
| ata | ||
| axi | ||
| bus | ||
| clock | ||
| cpu | ||
| exynos | ||
| firmware | ||
| fpga | ||
| fsp/fsp2/apollolake | ||
| gpio | ||
| gpu | ||
| i2c | ||
| input | ||
| interrupt-controller | ||
| iommu | ||
| leds | ||
| mailbox | ||
| memory | ||
| memory-controller | ||
| memory-controllers | ||
| mfd | ||
| misc | ||
| mmc | ||
| mtd | ||
| nand | ||
| net | ||
| nvmxip | ||
| pci | ||
| pci_endpoint | ||
| phy | ||
| pinctrl | ||
| pmic | ||
| power | ||
| pwm | ||
| ram | ||
| reboot-mode | ||
| regulator | ||
| remoteproc | ||
| reserved-memory | ||
| reset | ||
| rtc | ||
| serial | ||
| soc | ||
| sound | ||
| spi | ||
| spmi | ||
| sysinfo | ||
| thermal | ||
| timer | ||
| tpm2 | ||
| usb | ||
| video | ||
| w1 | ||
| w1-eeprom | ||
| watchdog | ||
| bootcount-syscon.txt | ||
| bootdev.txt | ||
| bootmeth.txt | ||
| bootph.yaml | ||
| bootstd.txt | ||
| chosen.txt | ||
| config.txt | ||
| device.txt | ||
| README | ||
| root.txt | ||
Device Tree Bindings Staging Area ================================= This directory contains device tree bindings for U-Boot. These follow along with Linux kernel bindings, with a few additions. By adding the files here, U-Boot patches can clearly show thees additions. This makes it easier for device tree people to review these additions in patches sent to the U-Boot mailing list. The intent IS to commit these files to U-Boot. Hopefully at some point the files will be stored in another repo (shared with Linux) which is brought in as needed. Changes here are intended to mirror changes in the Linux Documentation/devicetree/bindings/ directory. sjg@chromium.org 17-Jan-12