u-boot.git/drivers/crypto, branch v2020.10

crypto/fsl: add RNG support

2020-07-27T08:46:29+00:00

Register the random number generator with the rng subsystem in u-boot.
This way it can be used by EFI as well as for the 'rng' command.

Signed-off-by: Michael Walle 
Tested-by: Heinrich Schuchardt 
Reviewed-by: Priyanka Jain

crypto/fsl: instantiate the RNG with prediciton resistance

2020-07-27T08:46:29+00:00

If it is already instantiated tear it down first and then reinstanciate
it again with prediction resistance.

Signed-off-by: Michael Walle 
Reviewed-by: Priyanka Jain

crypto/fsl: don't regenerate secure keys

2020-07-27T08:46:29+00:00

The secure keys (TDKEK, JDKEK, TDSK) can only be generated once after a
POR. Otherwise the RNG4 will throw an error.

Signed-off-by: Michael Walle 
Reviewed-by: Horia Geantă 
Reviewed-by: Priyanka Jain

crypto/fsl: support newer SEC modules

2020-07-27T08:46:29+00:00

Since Era 10, the version registers changed. Add the version registers
and use them on newer modules.

Signed-off-by: Michael Walle 
Reviewed-by: Horia Geantă 
Reviewed-by: Priyanka Jain

crypto/fsl: export caam_get_era()

2020-07-27T08:46:29+00:00

We need the era in other modules, too. For example, to get the RNG
version.

Signed-off-by: Michael Walle 
Reviewed-by: Horia Geantă 
Reviewed-by: Priyanka Jain

crypto/fsl: make SEC%u status line consistent

2020-07-27T08:46:28+00:00

Align the status line with all the other output in U-Boot.

Before the change:
DDR    3.9 GiB (DDR3, 32-bit, CL=11, ECC on)
SEC0: RNG instantiated
WDT:   Started with servicing (60s timeout)

After the change:
DDR    3.9 GiB (DDR3, 32-bit, CL=11, ECC on)
SEC0:  RNG instantiated
WDT:   Started with servicing (60s timeout)

Signed-off-by: Michael Walle 
Reviewed-by: Horia Geantă 
Reviewed-by: Priyanka Jain

crypto/fsl: unused value in caam_hash_update()

2020-07-27T08:46:28+00:00

The value 0 assigned to final is overwritten before ever being used.

Remove the assignment.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass 
Reviewed-by: Priyanka Jain

crypto/fsl: correct printf() statement.

2020-07-27T08:46:28+00:00

The sequence of arguments should match the format string.
For printing unsigned numbers we should use %u.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Priyanka Jain

crypto/fsl: fix unaligned access

2020-07-27T08:46:28+00:00

On aarch64 running with dcache off, will result in an unaligned access
exception:

   => dcache off
   => hash sha1 $kernel_addr_r 100
   "Synchronous Abort" handler, esr 0x96000061
   elr: 00000000960317d8 lr : 00000000960316a4 (reloc)
   elr: 00000000fbd787d8 lr : 00000000fbd786a4
   [..]

The compiler emits a "stur x1, [x0, #12]". x1 is might just be 32 bit
aligned pointer. Remove the unused u64 element from the union to drop
the minimal alignment to 32 bit. Also remove the union, because it is
no more needed.

Signed-off-by: Michael Walle 
Reviewed-by: Priyanka Jain

drivers: crypto: mod_exp_sw: Re-add DM_FLAG_PRE_RELOC

2020-05-19T18:01:47+00:00

This driver is safe to use in SPL without relocation. Denying
DM_FLAG_PRE_RELOC prevents its usability for verifying the main U-Boot
or other artifacts from the SPL unless needless enabling the full driver
set (SPL_OF_PLATDATA).

Fixes: 17e117408571 ("drivers: crypto: rsa_mod_exp: avoid DM_FLAG_PRE_RELOC")
CC: Heinrich Schuchardt 
CC: Marek Vasut 
Signed-off-by: Jan Kiszka