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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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| cpu | ||
| dts | ||
| include | ||
| lib | ||
| mach-apple | ||
| mach-aspeed | ||
| mach-at91 | ||
| mach-bcm283x | ||
| mach-bcmbca | ||
| mach-bcmstb | ||
| mach-cortina | ||
| mach-davinci | ||
| mach-exynos | ||
| mach-highbank | ||
| mach-histb | ||
| mach-hpe | ||
| mach-imx | ||
| mach-integrator | ||
| mach-ipq40xx | ||
| mach-k3 | ||
| mach-keystone | ||
| mach-kirkwood | ||
| mach-lpc32xx | ||
| mach-mediatek | ||
| mach-meson | ||
| mach-mvebu | ||
| mach-nexell | ||
| mach-npcm | ||
| mach-octeontx | ||
| mach-octeontx2 | ||
| mach-omap2 | ||
| mach-orion5x | ||
| mach-owl | ||
| mach-qemu | ||
| mach-renesas | ||
| mach-rockchip | ||
| mach-s5pc1xx | ||
| mach-sc5xx | ||
| mach-snapdragon | ||
| mach-socfpga | ||
| mach-sti | ||
| mach-stm32 | ||
| mach-stm32mp | ||
| mach-sunxi | ||
| mach-tegra | ||
| mach-u8500 | ||
| mach-uniphier | ||
| mach-versal | ||
| mach-versal-net | ||
| mach-versal2 | ||
| mach-zynq | ||
| mach-zynqmp | ||
| mach-zynqmp-r5 | ||
| thumb1/include/asm/proc-armv | ||
| config.mk | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||