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https://github.com/brain-hackers/u-boot-brain
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87acf194a2
We have two contexts for booting these platforms. One is SPL which is roughly: reset, cpu_init_crit, lowlevel_init, s_init, sdram_init, _main, board_init_f from SPL, ... then U-Boot loads. The other is a memory-mapped XIP case (NOR or QSPI) where we do not run an SPL. In this case we go, roughly: reset, cpu_init_crit, lowlevel_init, s_init, _main, regular board_init_f. In the first case s_init will set a valid gd and then be able to call sdram_init which in many cases will need i2c (which needs a valid gd for gd->cur_i2c_bus). In this second case we must (and are able to and should) defer sdram_init() into dram_init() called by board_init_f as gd will have been set in _main and cleared in board_init_f. Signed-off-by: Tom Rini <trini@ti.com> |
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| .. | ||
| cpu | ||
| dts | ||
| imx-common | ||
| include/asm | ||
| lib | ||
| config.mk | ||