On Mon, Jan 18, 2016 at 11:02:40AM +0800, Dongsheng Wang wrote: > From: Wang Dongsheng <dongsheng.w...@nxp.com> > > "DISCARD" will remove ._secure.text relocate, but PSCI framework > has already used some absolute address those need to relocate. > > Use readelf -t -r u-boot show us: > .__secure_start addr: 601408e4 > .__secure_end addr: 60141460 > > 60141140 00000017 R_ARM_RELATIVE > 46 _secure_monitor: > 47 #ifdef CONFIG_ARMV7_PSCI > 48 ldr r5, =_psci_vectors > > 60141194 00000017 R_ARM_RELATIVE > 6014119c 00000017 R_ARM_RELATIVE > 601411a4 00000017 R_ARM_RELATIVE > 601411ac 00000017 R_ARM_RELATIVE > 64 _psci_table: > 66 .word psci_cpu_suspend > ... > 72 .word psci_migrate > > 60141344 00000017 R_ARM_RELATIVE > 6014145c 00000017 R_ARM_RELATIVE > 202 ldr r5, =psci_text_end > > Solutions: > 1. Change absolute address to RelAdr. > Based on LDR (immediate, ARM), we only have 4K offset to jump. > Now PSCI code size is close to 4K size that is LDR limit jump size, > so even if the LDR is based on the current instruction address, > there is also have a risk for RelAdr. If we use two jump steps I > think we can fix this issue, but looks too hack, so give up this way. > > 2. Enable "DISCARD" only for CONFIG_ARMV7_SECURE_BASE has defined. > If CONFIG_ARMV7_SECURE_BASE is defined in platform, all of secure > will in the BASE address that is absolute. > > Signed-off-by: Wang Dongsheng <dongsheng.w...@nxp.com> > > diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds > index d48a905..e148ab7 100644
Reviewed-by: Tom Rini <tr...@konsulko.com> -- Tom
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