u-boot.git/arch/powerpc/cpu, branch v2022.07

caam: Fix crash in case caam_jr_probe failed

2022-05-20T10:36:47Z

If probing caam_jr returns failure, the variable "dev" will not be initialized, so we can't use dev->name for the error print. Otherwise it will cause crash. Signed-off-by: Ye Li Reviewed-by: Gaurav Jain

powerpc: mpc85xx: Define linker sections in ascending order

2022-04-26T11:48:39Z

It is too confusing if sections are defined in non-ascending order. Also linker has to go backward and then again forward when generating final binary. To make future changes easier, define all linker sections in ascending order. Signed-off-by: Pali Rohár Reviewed-by: Priyanka Jain

powerpc: mpc85xx: Put bss after image when not including reset vector

2022-04-26T11:48:39Z

Linker knows exact size of the image, so there is no need to use CONFIG_SYS_MONITOR_LEN macro (which should be upper limit). Remove usage of CONFIG_SYS_MONITOR_LEN macro to simplify setup. Signed-off-by: Pali Rohár Reviewed-by: Priyanka Jain

powerpc: mpc85xx: Remove useless SIZEOF_HEADERS and .interp from ld script

2022-04-26T11:48:39Z

.interp section is not available in output ELF binary and SIZEOF_HEADERS is needed at all. There is no change in generated u-boot.bin binary. Signed-off-by: Pali Rohár Reviewed-by: Priyanka Jain

powerpc: mpc85xx: Remove duplicate u-boot-nand.lds

2022-04-26T11:48:39Z

Signed-off-by: Priyanka Jain

powerpc: mpc85xx: Remove u-boot-nand_spl.lds

2022-04-26T11:48:39Z

mpc85xx SPL NAND linker script u-boot-nand_spl.lds is not used since Jun 2014 commit 0234446fd171 ("nand_spl: remove MPC8536DS support"). Remove it. Signed-off-by: Pali Rohár [Rebased] Signed-off-by: Priyanka Jain

powerpc: mpc85xx: Fix CONFIG_OF_SEPARATE support

2022-04-26T11:48:39Z

Currently CONFIG_OF_SEPARATE is completely broken and U-Boot for some mpc85xx board (e.g. P2020) has to be compiled with CONFIG_OF_EMBED. Otherwise it crashes during early init. When debug console is enabled and all debug logging options are turned on then U-Boot on P2020 with CONFIG_OF_SEPARATE prints following error: No valid device tree binary found at 110dc300 initcall sequence 110d3560 failed at call 1109535c (err=-1) ### ERROR ### Please RESET the board ### Problem is with appended DTB. When CONFIG_SYS_MPC85XX_NO_RESETVEC is set U-Boot binary image without DTB ends immediately after the .u_boot_list section. At this position is defined _end symbol at which U-Boot expects start of the appended DTB. Problem is that after .u_boot_list section are in linker script defined another sections with 256 byte long padding which are completely empty. During conversion of U-Boot ELF binary to RAW binary u-boot-nodtb.bin, objcopy removes trailing zero padding and therefore DTB is appended at wrong position. Changing alignment from 256 bytes to 4 bytes fixes this issue. And appended DTB is finally at he correct position. With this fix U-Boot on P2020 with CONFIG_OF_SEPARATE option starts working again. Signed-off-by: Pali Rohár Reviewed-by: Priyanka Jain

powerpc: mpc85xx: Show e500 core version

2022-04-26T11:48:39Z

Distinguish between e500v1 and e500v2. Signed-off-by: Pali Rohár Reviewed-by: Priyanka Jain

powerpc: mpc85xx: Rename _start_e500 symbol to _start

2022-04-26T11:48:39Z

The real entry point is _start_e500. There is no _start symbol at all. So rename _start_e500 to _start for convension that _start symbol is used as entry point. Signed-off-by: Pali Rohár Reviewed-by: Priyanka Jain

powerpc: mpc85xx: Drop _start symbol

2022-04-26T11:48:33Z

_start symbol contains only 32-bit data number 0x27051956 despite it is marked as text section. This magic number is IH_MAGIC which is used for marking uboot image header. mpc85xx start.S code does not define valid uboot image header, so IH_MAGIC number in _start symbol is useless there. Moreover this _start symbol is not used at all. Entry point is at symbol _start_e500. So because this _start symbol is not used for anything, completely remove it with IH_MAGIC number. After _start symbol was _start_cont symbol, so replace all relative address calculations by _start_cont. Signed-off-by: Pali Rohár [Rebased] Signed-off-by: Priyanka Jain