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path: root/drivers/crypto/caam/ctrl.c
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Diffstat (limited to 'drivers/crypto/caam/ctrl.c')
-rw-r--r--drivers/crypto/caam/ctrl.c75
1 files changed, 37 insertions, 38 deletions
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index e483b78c6343..755109841cfd 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -330,8 +330,8 @@ static int caam_remove(struct platform_device *pdev)
clk_disable_unprepare(ctrlpriv->caam_ipg);
clk_disable_unprepare(ctrlpriv->caam_mem);
clk_disable_unprepare(ctrlpriv->caam_aclk);
- clk_disable_unprepare(ctrlpriv->caam_emi_slow);
-
+ if (ctrlpriv->caam_emi_slow)
+ clk_disable_unprepare(ctrlpriv->caam_emi_slow);
return 0;
}
@@ -365,11 +365,8 @@ static void kick_trng(struct platform_device *pdev, int ent_delay)
*/
val = (rd_reg32(&r4tst->rtsdctl) & RTSDCTL_ENT_DLY_MASK)
>> RTSDCTL_ENT_DLY_SHIFT;
- if (ent_delay <= val) {
- /* put RNG4 into run mode */
- clrsetbits_32(&r4tst->rtmctl, RTMCTL_PRGM, 0);
- return;
- }
+ if (ent_delay <= val)
+ goto start_rng;
val = rd_reg32(&r4tst->rtsdctl);
val = (val & ~RTSDCTL_ENT_DLY_MASK) |
@@ -381,15 +378,12 @@ static void kick_trng(struct platform_device *pdev, int ent_delay)
wr_reg32(&r4tst->rtfrqmax, RTFRQMAX_DISABLE);
/* read the control register */
val = rd_reg32(&r4tst->rtmctl);
+start_rng:
/*
* select raw sampling in both entropy shifter
- * and statistical checker
+ * and statistical checker; ; put RNG4 into run mode
*/
- clrsetbits_32(&val, 0, RTMCTL_SAMP_MODE_RAW_ES_SC);
- /* put RNG4 into run mode */
- clrsetbits_32(&val, RTMCTL_PRGM, 0);
- /* write back the control register */
- wr_reg32(&r4tst->rtmctl, val);
+ clrsetbits_32(&r4tst->rtmctl, RTMCTL_PRGM, RTMCTL_SAMP_MODE_RAW_ES_SC);
}
/**
@@ -482,14 +476,16 @@ static int caam_probe(struct platform_device *pdev)
}
ctrlpriv->caam_aclk = clk;
- clk = caam_drv_identify_clk(&pdev->dev, "emi_slow");
- if (IS_ERR(clk)) {
- ret = PTR_ERR(clk);
- dev_err(&pdev->dev,
- "can't identify CAAM emi_slow clk: %d\n", ret);
- return ret;
+ if (!of_machine_is_compatible("fsl,imx6ul")) {
+ clk = caam_drv_identify_clk(&pdev->dev, "emi_slow");
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ dev_err(&pdev->dev,
+ "can't identify CAAM emi_slow clk: %d\n", ret);
+ return ret;
+ }
+ ctrlpriv->caam_emi_slow = clk;
}
- ctrlpriv->caam_emi_slow = clk;
ret = clk_prepare_enable(ctrlpriv->caam_ipg);
if (ret < 0) {
@@ -510,11 +506,13 @@ static int caam_probe(struct platform_device *pdev)
goto disable_caam_mem;
}
- ret = clk_prepare_enable(ctrlpriv->caam_emi_slow);
- if (ret < 0) {
- dev_err(&pdev->dev, "can't enable CAAM emi slow clock: %d\n",
- ret);
- goto disable_caam_aclk;
+ if (ctrlpriv->caam_emi_slow) {
+ ret = clk_prepare_enable(ctrlpriv->caam_emi_slow);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "can't enable CAAM emi slow clock: %d\n",
+ ret);
+ goto disable_caam_aclk;
+ }
}
/* Get configuration properties from device tree */
@@ -541,13 +539,13 @@ static int caam_probe(struct platform_device *pdev)
else
BLOCK_OFFSET = PG_SIZE_64K;
- ctrlpriv->ctrl = (struct caam_ctrl __force *)ctrl;
- ctrlpriv->assure = (struct caam_assurance __force *)
- ((uint8_t *)ctrl +
+ ctrlpriv->ctrl = (struct caam_ctrl __iomem __force *)ctrl;
+ ctrlpriv->assure = (struct caam_assurance __iomem __force *)
+ ((__force uint8_t *)ctrl +
BLOCK_OFFSET * ASSURE_BLOCK_NUMBER
);
- ctrlpriv->deco = (struct caam_deco __force *)
- ((uint8_t *)ctrl +
+ ctrlpriv->deco = (struct caam_deco __iomem __force *)
+ ((__force uint8_t *)ctrl +
BLOCK_OFFSET * DECO_BLOCK_NUMBER
);
@@ -627,8 +625,8 @@ static int caam_probe(struct platform_device *pdev)
ring);
continue;
}
- ctrlpriv->jr[ring] = (struct caam_job_ring __force *)
- ((uint8_t *)ctrl +
+ ctrlpriv->jr[ring] = (struct caam_job_ring __iomem __force *)
+ ((__force uint8_t *)ctrl +
(ring + JR_BLOCK_NUMBER) *
BLOCK_OFFSET
);
@@ -641,8 +639,8 @@ static int caam_probe(struct platform_device *pdev)
!!(rd_reg32(&ctrl->perfmon.comp_parms_ms) &
CTPR_MS_QI_MASK);
if (ctrlpriv->qi_present) {
- ctrlpriv->qi = (struct caam_queue_if __force *)
- ((uint8_t *)ctrl +
+ ctrlpriv->qi = (struct caam_queue_if __iomem __force *)
+ ((__force uint8_t *)ctrl +
BLOCK_OFFSET * QI_BLOCK_NUMBER
);
/* This is all that's required to physically enable QI */
@@ -800,7 +798,7 @@ static int caam_probe(struct platform_device *pdev)
&caam_fops_u32_ro);
/* Internal covering keys (useful in non-secure mode only) */
- ctrlpriv->ctl_kek_wrap.data = &ctrlpriv->ctrl->kek[0];
+ ctrlpriv->ctl_kek_wrap.data = (__force void *)&ctrlpriv->ctrl->kek[0];
ctrlpriv->ctl_kek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
ctrlpriv->ctl_kek = debugfs_create_blob("kek",
S_IRUSR |
@@ -808,7 +806,7 @@ static int caam_probe(struct platform_device *pdev)
ctrlpriv->ctl,
&ctrlpriv->ctl_kek_wrap);
- ctrlpriv->ctl_tkek_wrap.data = &ctrlpriv->ctrl->tkek[0];
+ ctrlpriv->ctl_tkek_wrap.data = (__force void *)&ctrlpriv->ctrl->tkek[0];
ctrlpriv->ctl_tkek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
ctrlpriv->ctl_tkek = debugfs_create_blob("tkek",
S_IRUSR |
@@ -816,7 +814,7 @@ static int caam_probe(struct platform_device *pdev)
ctrlpriv->ctl,
&ctrlpriv->ctl_tkek_wrap);
- ctrlpriv->ctl_tdsk_wrap.data = &ctrlpriv->ctrl->tdsk[0];
+ ctrlpriv->ctl_tdsk_wrap.data = (__force void *)&ctrlpriv->ctrl->tdsk[0];
ctrlpriv->ctl_tdsk_wrap.size = KEK_KEY_SIZE * sizeof(u32);
ctrlpriv->ctl_tdsk = debugfs_create_blob("tdsk",
S_IRUSR |
@@ -833,7 +831,8 @@ caam_remove:
iounmap_ctrl:
iounmap(ctrl);
disable_caam_emi_slow:
- clk_disable_unprepare(ctrlpriv->caam_emi_slow);
+ if (ctrlpriv->caam_emi_slow)
+ clk_disable_unprepare(ctrlpriv->caam_emi_slow);
disable_caam_aclk:
clk_disable_unprepare(ctrlpriv->caam_aclk);
disable_caam_mem:
generated by cgit (git 2.34.1) at 2024-05-28 07:58:55 +0000