We got value "0x00013880" readout when we boot from ATF of Yocto ver. Mmio_read_32() reads out GPIO resister values both pre- and post- GPIO resister settings. Mmio_setbits_32() sets parameter values to GPIO resister. This code processes GPIO resister settings. Mmio_write_32(addr, mmio_read_32(addr) | set) Static inline void mmio_setbits_32(uintptr_t addr, uint32_t set) Mmio_write_32(addr, mmio_read_32(addr) & ~clear) Static inline void mmio_clrbits_32(uintptr_t addr, uint32_t clear) Static inline uint32_t mmio_read_32(uintptr_t addr) #define GPIO_INOUTSEL6 (GPIO_BASE + 0x5404U) Using the conditions described above, we made codes below. Namely, we added modifications to plat/renesas/rcar/platform.mk.Ģ25:# Process RCAR_B元3_EXECUTION_EL flagĢ27:RCAR_B元3_EXECUTION_EL := 0 <- We changed the value "0" to "1"Ģ29:$(eval $(call add_define,RCAR_B元3_EXECUTION_EL)) We added the modifications described below when we built the software, where the program will boot in EL2 mode, instead of booting from ATF. However, we made slight modifications to ATF. Using R-Car Starterkit Pro, we are now developing a bear metal software which boots directly from ATF.
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