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14940aee45
Removed upstreamed: target/linux/mvebu/patches-5.4/001-PCI-aardvark-Wait-for-endpoint-to-be-ready-before-tr.patch target/linux/mvebu/patches-5.4/016-PCI-aardvark-Train-link-immediately-after-enabling-t.patch target/linux/mvebu/patches-5.4/017-PCI-aardvark-Improve-link-training.patch target/linux/mvebu/patches-5.4/018-PCI-aardvark-Issue-PERST-via-GPIO.patch target/linux/mvebu/patches-5.4/020-arm64-dts-marvell-armada-37xx-Set-pcie_reset_pin-to-.patch The following patch does not apply to upstream any more and needs some more work to make it work fully again. I am not sure if we are still able to set the UART to a none standard baud rate. target/linux/ath79/patches-5.4/921-serial-core-add-support-for-boot-console-with-arbitr.patch These patches needed manually changes: target/linux/generic/pending-5.4/110-ehci_hcd_ignore_oc.patch target/linux/ipq806x/patches-5.4/0065-arm-override-compiler-flags.patch target/linux/layerscape/patches-5.4/804-crypto-0016-MLKU-114-1-crypto-caam-reduce-page-0-regs-access-to-.patch target/linux/mvebu/patches-5.4/019-PCI-aardvark-Add-PHY-support.patch target/linux/octeontx/patches-5.4/0004-PCI-add-quirk-for-Gateworks-PLX-PEX860x-switch-with-.patch All others updated automatically. Compile-tested on: malta/le, armvirt/64, lantiq/xrx200 Runtime-tested on: malta/le, armvirt/64, lantiq/xrx200 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
64 lines
2.3 KiB
Diff
64 lines
2.3 KiB
Diff
From e1a89cdf6fa6b04806eb24b939738bb89ab62914 Mon Sep 17 00:00:00 2001
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From: Aymen Sghaier <aymen.sghaier@nxp.com>
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Date: Thu, 13 Sep 2018 16:41:03 +0200
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Subject: [PATCH] MLK-19053 crypto: caam - RNG4 TRNG errata
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The TRNG as used in RNG4, used in CAAM has a documentation issue. The
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effect is that it is possible that the entropy used to instantiate the
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DRBG may be old entropy, rather than newly generated entropy. There is
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proper programming guidance, but it is not in the documentation.
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Signed-off-by: Aymen Sghaier <aymen.sghaier@nxp.com>
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Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
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(cherry picked from commit ea2b30c8171acf7624e3d44276737c3878ca900d)
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-ported to RNG initialization in ctrl.c
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-changed commit headline
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Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
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---
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drivers/crypto/caam/ctrl.c | 9 +++++++--
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drivers/crypto/caam/regs.h | 3 ++-
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2 files changed, 9 insertions(+), 3 deletions(-)
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--- a/drivers/crypto/caam/ctrl.c
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+++ b/drivers/crypto/caam/ctrl.c
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@@ -339,7 +339,11 @@ static void kick_trng(struct platform_de
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r4tst = &ctrl->r4tst[0];
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/* put RNG4 into program mode */
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- clrsetbits_32(&r4tst->rtmctl, 0, RTMCTL_PRGM);
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+ /* Setting both RTMCTL:PRGM and RTMCTL:TRNG_ACC causes TRNG to
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+ * properly invalidate the entropy in the entropy register and
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+ * force re-generation.
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+ */
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+ clrsetbits_32(&r4tst->rtmctl, 0, RTMCTL_PRGM | RTMCTL_ACC);
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/*
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* Performance-wise, it does not make sense to
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@@ -369,7 +373,8 @@ start_rng:
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* select raw sampling in both entropy shifter
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* and statistical checker; ; put RNG4 into run mode
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*/
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- clrsetbits_32(&r4tst->rtmctl, RTMCTL_PRGM, RTMCTL_SAMP_MODE_RAW_ES_SC);
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+ clrsetbits_32(&r4tst->rtmctl, RTMCTL_PRGM | RTMCTL_ACC,
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+ RTMCTL_SAMP_MODE_RAW_ES_SC);
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}
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static int caam_get_era_from_hw(struct caam_ctrl __iomem *ctrl)
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--- a/drivers/crypto/caam/regs.h
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+++ b/drivers/crypto/caam/regs.h
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@@ -495,7 +495,8 @@ struct rngtst {
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/* RNG4 TRNG test registers */
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struct rng4tst {
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-#define RTMCTL_PRGM 0x00010000 /* 1 -> program mode, 0 -> run mode */
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+#define RTMCTL_ACC BIT(5) /* TRNG access mode */
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+#define RTMCTL_PRGM BIT(16) /* 1 -> program mode, 0 -> run mode */
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#define RTMCTL_SAMP_MODE_VON_NEUMANN_ES_SC 0 /* use von Neumann data in
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both entropy shifter and
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statistical checker */
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