kernel/linux.git/drivers/crypto/caam/ctrl.c, branch v5.2.16

crypto: caam - fix typo in i.MX6 devices list for errata

2019-05-17T05:36:54+00:00

Fix a typo in the list of i.MX6 devices affected by an issue wherein AXI bus transactions may not occur in the correct order. Fixes: 33d69455e402 ("crypto: caam - limit AXI pipeline to a depth of 1") Signed-off-by: Iuliana Prodan Reviewed-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - limit AXI pipeline to a depth of 1

2019-03-28T05:55:34+00:00

Some i.MX6 devices (imx6D, imx6Q, imx6DL, imx6S, imx6DP and imx6DQ) have an issue wherein AXI bus transactions may not occur in the correct order. This isn't a problem running single descriptors, but can be if running multiple concurrent descriptors. Reworking the CAAM driver to throttle to single requests is impractical, so this patch limits the AXI pipeline to a depth of one (from a default of 4) to preclude this situation from occurring. This patch applies to known affected platforms. Signed-off-by: Radu Solea Signed-off-by: Iuliana Prodan Reviewed-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - no need to check return value of debugfs_create functions

2019-02-01T06:42:03+00:00

When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: "Horia Geantă" Cc: Aymen Sghaier Cc: Herbert Xu Cc: "David S. Miller" Cc: linux-crypto@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Reviewed-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - move shared symbols in a common location

2019-01-11T06:16:55+00:00

There are several issues with symbols shared b/w: -caam/jr and caam/qi drivers on one hand -caam/qi2 driver on the other hand Commit 52813ab24959 ("crypto: caam/qi2 - avoid double export") fixed some of them, however compilation still fails for CRYPTO_DEV_FSL_CAAM=m and CRYPTO_DEV_FSL_DPAA2_CAAM=y. Another issue is related to dependency cycles reported by depmod when CRYPTO_DEV_FSL_CAAM=n and CRYPTO_DEV_FSL_DPAA2_CAAM=m, as mentioned in 82c7b351be3f ("Revert "arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO"") To fix all these, move the symbols shared by these drivers in a common location. The only existing possibility is error.c file (note that naming doesn't help and should probably change). Fixes: 52813ab24959 ("crypto: caam/qi2 - avoid double export") Reported-by: Arnd Bergmann Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - add register map changes cf. Era 10

2018-11-16T06:11:03+00:00

Era 10 changes the register map. The updates that affect the drivers: -new version registers are added -DBG_DBG[deco_state] field is moved to a new register - DBG_EXEC[19:16] @ 8_0E3Ch. Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - add SPDX license identifier to all files

2018-10-17T06:16:18+00:00

Previously, a tree-wide change added SPDX license identifiers to files lacking licensing information: b24413180f56 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license") To be consistent update the rest of the files: -files with license specified by means of MODULE_LICENSE() -files with complete license text -Kconfig Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - fix MC firmware detection

2018-05-30T16:13:46+00:00

Management Complex (MC) f/w detection is based on CTPR_MS[DPAA2] bit. This is incorrect since: -the bit is set for all CAAM blocks integrated in SoCs with a certain Layerscape Chassis -some SoCs with LS Chassis don't have an MC block (thus no MC f/w) To fix this, MC f/w detection will be based on the presence of "fsl,qoriq-mc" compatible string in the device tree. Fixes: 297b9cebd2fc0 ("crypto: caam/jr - add support for DPAA2 parts") Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - allow retrieving 'era' from register

2018-04-20T16:58:37+00:00

The 'era' information can be retrieved from CAAM registers, so introduce a caam_get_era_from_hw() function that gets it via register reads in case the 'fsl,sec-era' property is not passed in the device tree. This function is based on the U-Boot implementation from drivers/crypto/fsl/sec.c Signed-off-by: Fabio Estevam Reviewed-by: Horia Geantă Tested-by: Breno Lima Signed-off-by: Herbert Xu

crypto: caam - staticize caam_get_era()

2018-04-20T16:58:36+00:00

caam_get_era() is only used locally, so do not export this function and make it static instead. Signed-off-by: Fabio Estevam Reviewed-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - do not use mem and emi_slow clock for imx7x

2018-03-02T16:03:40+00:00

I.MX7x only use two clocks for the CAAM module, so make sure we do not try to use the mem and the emi_slow clock when running in that imx7d and imx7s machine type. Cc: "Horia Geantă" Cc: Aymen Sghaier Cc: Fabio Estevam Cc: Peng Fan Cc: "David S. Miller" Cc: Lukas Auer Signed-off-by: Rui Miguel Silva Signed-off-by: Herbert Xu