]> git.sur5r.net Git - u-boot/commit
powerpc/p4080: Add support for secure boot flow
authorRuchika Gupta <ruchika.gupta@freescale.com>
Wed, 15 Dec 2010 17:02:08 +0000 (17:02 +0000)
committerKumar Gala <galak@kernel.crashing.org>
Mon, 3 Oct 2011 13:52:14 +0000 (08:52 -0500)
commit7065b7d466dfc4fbfa8a608cf21206efe59c01d9
treeb6c9d32bc4be7a818a4b594b9af7e1997ffb28e8
parent2f439e805e945b410b0043db82f9666eb03914ba
powerpc/p4080: Add support for secure boot flow

Pre u-boot Flow:
1. User loads the u-boot image in flash
2. PBL/Configuration word is used to create LAW for Flash at 0xc0000000
   (Please note that ISBC expects all these addresses, images to be
    validated, entry point etc within 0 - 3.5G range)
3. ISBC validates the u-boot image, and passes control to u-boot
   at 0xcffffffc.

Changes in u-boot:
1. Temporarily map CONFIG_SYS_MONITOR_BASE to the 1M
   CONFIG_SYS_PBI_FLASH_WINDOW in AS=1.
   (The CONFIG_SYS_PBI_FLASH_WINDOW is the address map for the flash
    created by PBL/configuration word within 0 - 3.5G memory range. The
    u-boot image at this address has been validated by ISBC code)
2. Remove TLB entries for 0 - 3.5G created by ISBC code
3. Remove the LAW entry for the CONFIG_SYS_PBI_FLASH_WINDOW created by
   PBL/configuration word after switch to AS = 1

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Kuldip Giroh <kuldip.giroh@freescale.com>
Acked-by: Wood Scott-B07421 <B07421@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
arch/powerpc/cpu/mpc85xx/cpu_init.c
arch/powerpc/cpu/mpc85xx/cpu_init_early.c
arch/powerpc/cpu/mpc85xx/start.S
arch/powerpc/include/asm/fsl_secure_boot.h [new file with mode: 0644]
arch/powerpc/include/asm/immap_85xx.h
boards.cfg
include/configs/corenet_ds.h