1 files changed, 0 insertions, 111 deletions
diff --git a/drivers/staging/ccree/cc_fips.c b/drivers/staging/ccree/cc_fips.c
deleted file mode 100644
index de08af976b7f..000000000000
--- a/drivers/staging/ccree/cc_fips.c
+++ /dev/null
@@ -1,111 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */
-
-#include <linux/kernel.h>
-#include <linux/fips.h>
-
-#include "cc_driver.h"
-#include "cc_fips.h"
-
-static void fips_dsr(unsigned long devarg);
-
-struct cc_fips_handle {
-	struct tasklet_struct tasklet;
-};
-
-/* The function called once at driver entry point to check
- * whether TEE FIPS error occurred.
- */
-static bool cc_get_tee_fips_status(struct cc_drvdata *drvdata)
-{
-	u32 reg;
-
-	reg = cc_ioread(drvdata, CC_REG(GPR_HOST));
-	return (reg == (CC_FIPS_SYNC_TEE_STATUS | CC_FIPS_SYNC_MODULE_OK));
-}
-
-/*
- * This function should push the FIPS REE library status towards the TEE library
- * by writing the error state to HOST_GPR0 register.
- */
-void cc_set_ree_fips_status(struct cc_drvdata *drvdata, bool status)
-{
-	int val = CC_FIPS_SYNC_REE_STATUS;
-
-	val |= (status ? CC_FIPS_SYNC_MODULE_OK : CC_FIPS_SYNC_MODULE_ERROR);
-
-	cc_iowrite(drvdata, CC_REG(HOST_GPR0), val);
-}
-
-void cc_fips_fini(struct cc_drvdata *drvdata)
-{
-	struct cc_fips_handle *fips_h = drvdata->fips_handle;
-
-	if (!fips_h)
-		return; /* Not allocated */
-
-	/* Kill tasklet */
-	tasklet_kill(&fips_h->tasklet);
-
-	kfree(fips_h);
-	drvdata->fips_handle = NULL;
-}
-
-void fips_handler(struct cc_drvdata *drvdata)
-{
-	struct cc_fips_handle *fips_handle_ptr = drvdata->fips_handle;
-
-	tasklet_schedule(&fips_handle_ptr->tasklet);
-}
-
-static inline void tee_fips_error(struct device *dev)
-{
-	if (fips_enabled)
-		panic("ccree: TEE reported cryptographic error in fips mode!\n");
-	else
-		dev_err(dev, "TEE reported error!\n");
-}
-
-/* Deferred service handler, run as interrupt-fired tasklet */
-static void fips_dsr(unsigned long devarg)
-{
-	struct cc_drvdata *drvdata = (struct cc_drvdata *)devarg;
-	struct device *dev = drvdata_to_dev(drvdata);
-	u32 irq, state, val;
-
-	irq = (drvdata->irq & (CC_GPR0_IRQ_MASK));
-
-	if (irq) {
-		state = cc_ioread(drvdata, CC_REG(GPR_HOST));
-
-		if (state != (CC_FIPS_SYNC_TEE_STATUS | CC_FIPS_SYNC_MODULE_OK))
-			tee_fips_error(dev);
-	}
-
-	/* after verifing that there is nothing to do,
-	 * unmask AXI completion interrupt.
-	 */
-	val = (CC_REG(HOST_IMR) & ~irq);
-	cc_iowrite(drvdata, CC_REG(HOST_IMR), val);
-}
-
-/* The function called once at driver entry point .*/
-int cc_fips_init(struct cc_drvdata *p_drvdata)
-{
-	struct cc_fips_handle *fips_h;
-	struct device *dev = drvdata_to_dev(p_drvdata);
-
-	fips_h = kzalloc(sizeof(*fips_h), GFP_KERNEL);
-	if (!fips_h)
-		return -ENOMEM;
-
-	p_drvdata->fips_handle = fips_h;
-
-	dev_dbg(dev, "Initializing fips tasklet\n");
-	tasklet_init(&fips_h->tasklet, fips_dsr, (unsigned long)p_drvdata);
-
-	if (!cc_get_tee_fips_status(p_drvdata))
-		tee_fips_error(dev);
-
-	return 0;
-}