Commit 8f1da7b9 authored by Horia Geanta's avatar Horia Geanta Committed by Herbert Xu
Browse files

crypto: caam - fix DECO RSR polling 



RSR (Request Source Register) is not used when
virtualization is disabled, thus don't poll for Valid bit.

Besides this, if used, timeout has to be reinitialized.

Signed-off-by: default avatarHoria Geanta <horia.geanta@freescale.com>
Acked-by: default avatarKim Phillips <kim.phillips@freescale.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 71d932d9

drivers/crypto/caam/ctrl.c

+7 −4
Original line number Diff line number Diff line
@@ -89,13 +89,16 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc, 
	/* Set the bit to request direct access to DECO0 */

	topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;



	if (ctrlpriv->virt_en == 1)

	if (ctrlpriv->virt_en == 1) {

		setbits32(&topregs->ctrl.deco_rsr, DECORSR_JR0);



		while (!(rd_reg32(&topregs->ctrl.deco_rsr) & DECORSR_VALID) &&

		       --timeout)

			cpu_relax();



		timeout = 100000;

	}



	setbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);



	while (!(rd_reg32(&topregs->ctrl.deco_rq) & DECORR_DEN0) &&

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