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Section 4.1.2 of Freescale Application Note AN4199 describes the configuration required to operate the mx28 from a 5V source without a battery. This patch changes the behaviour of the dropout control of the DC-DC converter (refer to section 11.12.9 of the mx28 Application Processor Reference Manual - Document Number: MCIMX28RM, Rev 2, 08/2013) to the following: - Always use 4P2 Linear Regulator if CONFIG_SYS_MXS_VDD5V_ONLY is defined - Switch between 4P2 Linear Regulator and Battery, using whichever has the highest voltage if CONFIG_SYS_MXS_VDD5V_ONLY isnot set (this is the same as the pre-patch behaviour) Signed-off-by: Graeme Russ <gruss@tss-engineering.com> Signed-off-by: Damien Gotfroi <dgotfroi@greenwatch.be> |
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| .. | ||
| clock.c | ||
| iomux.c | ||
| Makefile | ||
| mxs.c | ||
| mxs_init.h | ||
| mxsimage-signed.cfg | ||
| mxsimage.mx23.cfg | ||
| mxsimage.mx28.cfg | ||
| spl_boot.c | ||
| spl_lradc_init.c | ||
| spl_mem_init.c | ||
| spl_power_init.c | ||
| start.S | ||
| timer.c | ||
| u-boot-imx23.bd | ||
| u-boot-imx28.bd | ||
| u-boot-spl.lds | ||