diff --git a/drivers/crypto/ux500/Kconfig b/drivers/crypto/ux500/Kconfig
index f56d65c56ccf78579efb822a175f0ebc0276fd98..dcbd7404768f182bd78e485302664eeef0dd538a 100644
--- a/drivers/crypto/ux500/Kconfig
+++ b/drivers/crypto/ux500/Kconfig
@@ -4,16 +4,6 @@
# Author: Shujuan Chen (shujuan.chen@stericsson.com)
#
-config CRYPTO_DEV_UX500_CRYP
- tristate "UX500 crypto driver for CRYP block"
- depends on CRYPTO_DEV_UX500
- select CRYPTO_ALGAPI
- select CRYPTO_SKCIPHER
- select CRYPTO_LIB_DES
- help
- This selects the crypto driver for the UX500_CRYP hardware. It supports
- AES-ECB, CBC and CTR with keys sizes of 128, 192 and 256 bit sizes.
-
config CRYPTO_DEV_UX500_HASH
tristate "UX500 crypto driver for HASH block"
depends on CRYPTO_DEV_UX500
diff --git a/drivers/crypto/ux500/Makefile b/drivers/crypto/ux500/Makefile
index f014eb01710a609111c7766bead6e865b5556b45..f1aa4edf66f4f496952560e71341779c01d07d52 100644
--- a/drivers/crypto/ux500/Makefile
+++ b/drivers/crypto/ux500/Makefile
@@ -5,4 +5,3 @@
#
obj-$(CONFIG_CRYPTO_DEV_UX500_HASH) += hash/
-obj-$(CONFIG_CRYPTO_DEV_UX500_CRYP) += cryp/
diff --git a/drivers/crypto/ux500/cryp/Makefile b/drivers/crypto/ux500/cryp/Makefile
deleted file mode 100644
index 3e67531f484cd75f5f8771f821918c1dc2240155..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#/*
-# * Copyright (C) ST-Ericsson SA 2010
-# * Author: shujuan.chen@stericsson.com for ST-Ericsson.
-# */
-
-ccflags-$(CONFIG_CRYPTO_DEV_UX500_DEBUG) += -DDEBUG
-
-obj-$(CONFIG_CRYPTO_DEV_UX500_CRYP) += ux500_cryp.o
-ux500_cryp-objs := cryp.o cryp_irq.o cryp_core.o
diff --git a/drivers/crypto/ux500/cryp/cryp.c b/drivers/crypto/ux500/cryp/cryp.c
deleted file mode 100644
index 759d0d9786fd19019728a212d76f1d70040f8ae8..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/cryp.c
+++ /dev/null
@@ -1,394 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
- * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
- * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
- * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
- * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
- */
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-#include "cryp_p.h"
-#include "cryp.h"
-
-/*
- * cryp_wait_until_done - wait until the device logic is not busy
- */
-void cryp_wait_until_done(struct cryp_device_data *device_data)
-{
- while (cryp_is_logic_busy(device_data))
- cpu_relax();
-}
-
-/**
- * cryp_check - This routine checks Peripheral and PCell Id
- * @device_data: Pointer to the device data struct for base address.
- */
-int cryp_check(struct cryp_device_data *device_data)
-{
- int peripheralid2 = 0;
-
- if (NULL == device_data)
- return -EINVAL;
-
- peripheralid2 = readl_relaxed(&device_data->base->periphId2);
-
- if (peripheralid2 != CRYP_PERIPHERAL_ID2_DB8500)
- return -EPERM;
-
- /* Check Peripheral and Pcell Id Register for CRYP */
- if ((CRYP_PERIPHERAL_ID0 ==
- readl_relaxed(&device_data->base->periphId0))
- && (CRYP_PERIPHERAL_ID1 ==
- readl_relaxed(&device_data->base->periphId1))
- && (CRYP_PERIPHERAL_ID3 ==
- readl_relaxed(&device_data->base->periphId3))
- && (CRYP_PCELL_ID0 ==
- readl_relaxed(&device_data->base->pcellId0))
- && (CRYP_PCELL_ID1 ==
- readl_relaxed(&device_data->base->pcellId1))
- && (CRYP_PCELL_ID2 ==
- readl_relaxed(&device_data->base->pcellId2))
- && (CRYP_PCELL_ID3 ==
- readl_relaxed(&device_data->base->pcellId3))) {
- return 0;
- }
-
- return -EPERM;
-}
-
-/**
- * cryp_activity - This routine enables/disable the cryptography function.
- * @device_data: Pointer to the device data struct for base address.
- * @cryp_crypen: Enable/Disable functionality
- */
-void cryp_activity(struct cryp_device_data *device_data,
- enum cryp_crypen cryp_crypen)
-{
- CRYP_PUT_BITS(&device_data->base->cr,
- cryp_crypen,
- CRYP_CR_CRYPEN_POS,
- CRYP_CR_CRYPEN_MASK);
-}
-
-/**
- * cryp_flush_inoutfifo - Resets both the input and the output FIFOs
- * @device_data: Pointer to the device data struct for base address.
- */
-void cryp_flush_inoutfifo(struct cryp_device_data *device_data)
-{
- /*
- * We always need to disable the hardware before trying to flush the
- * FIFO. This is something that isn't written in the design
- * specification, but we have been informed by the hardware designers
- * that this must be done.
- */
- cryp_activity(device_data, CRYP_CRYPEN_DISABLE);
- cryp_wait_until_done(device_data);
-
- CRYP_SET_BITS(&device_data->base->cr, CRYP_CR_FFLUSH_MASK);
- /*
- * CRYP_SR_INFIFO_READY_MASK is the expected value on the status
- * register when starting a new calculation, which means Input FIFO is
- * not full and input FIFO is empty.
- */
- while (readl_relaxed(&device_data->base->sr) !=
- CRYP_SR_INFIFO_READY_MASK)
- cpu_relax();
-}
-
-/**
- * cryp_set_configuration - This routine set the cr CRYP IP
- * @device_data: Pointer to the device data struct for base address.
- * @cryp_config: Pointer to the configuration parameter
- * @control_register: The control register to be written later on.
- */
-int cryp_set_configuration(struct cryp_device_data *device_data,
- struct cryp_config *cryp_config,
- u32 *control_register)
-{
- u32 cr_for_kse;
-
- if (NULL == device_data || NULL == cryp_config)
- return -EINVAL;
-
- *control_register |= (cryp_config->keysize << CRYP_CR_KEYSIZE_POS);
-
- /* Prepare key for decryption in AES_ECB and AES_CBC mode. */
- if ((CRYP_ALGORITHM_DECRYPT == cryp_config->algodir) &&
- ((CRYP_ALGO_AES_ECB == cryp_config->algomode) ||
- (CRYP_ALGO_AES_CBC == cryp_config->algomode))) {
- cr_for_kse = *control_register;
- /*
- * This seems a bit odd, but it is indeed needed to set this to
- * encrypt even though it is a decryption that we are doing. It
- * also mentioned in the design spec that you need to do this.
- * After the keyprepartion for decrypting is done you should set
- * algodir back to decryption, which is done outside this if
- * statement.
- *
- * According to design specification we should set mode ECB
- * during key preparation even though we might be running CBC
- * when enter this function.
- *
- * Writing to KSE_ENABLED will drop CRYPEN when key preparation
- * is done. Therefore we need to set CRYPEN again outside this
- * if statement when running decryption.
- */
- cr_for_kse |= ((CRYP_ALGORITHM_ENCRYPT << CRYP_CR_ALGODIR_POS) |
- (CRYP_ALGO_AES_ECB << CRYP_CR_ALGOMODE_POS) |
- (CRYP_CRYPEN_ENABLE << CRYP_CR_CRYPEN_POS) |
- (KSE_ENABLED << CRYP_CR_KSE_POS));
-
- writel_relaxed(cr_for_kse, &device_data->base->cr);
- cryp_wait_until_done(device_data);
- }
-
- *control_register |=
- ((cryp_config->algomode << CRYP_CR_ALGOMODE_POS) |
- (cryp_config->algodir << CRYP_CR_ALGODIR_POS));
-
- return 0;
-}
-
-/**
- * cryp_configure_protection - set the protection bits in the CRYP logic.
- * @device_data: Pointer to the device data struct for base address.
- * @p_protect_config: Pointer to the protection mode and
- * secure mode configuration
- */
-int cryp_configure_protection(struct cryp_device_data *device_data,
- struct cryp_protection_config *p_protect_config)
-{
- if (NULL == p_protect_config)
- return -EINVAL;
-
- CRYP_WRITE_BIT(&device_data->base->cr,
- (u32) p_protect_config->secure_access,
- CRYP_CR_SECURE_MASK);
- CRYP_PUT_BITS(&device_data->base->cr,
- p_protect_config->privilege_access,
- CRYP_CR_PRLG_POS,
- CRYP_CR_PRLG_MASK);
-
- return 0;
-}
-
-/**
- * cryp_is_logic_busy - returns the busy status of the CRYP logic
- * @device_data: Pointer to the device data struct for base address.
- */
-int cryp_is_logic_busy(struct cryp_device_data *device_data)
-{
- return CRYP_TEST_BITS(&device_data->base->sr,
- CRYP_SR_BUSY_MASK);
-}
-
-/**
- * cryp_configure_for_dma - configures the CRYP IP for DMA operation
- * @device_data: Pointer to the device data struct for base address.
- * @dma_req: Specifies the DMA request type value.
- */
-void cryp_configure_for_dma(struct cryp_device_data *device_data,
- enum cryp_dma_req_type dma_req)
-{
- CRYP_SET_BITS(&device_data->base->dmacr,
- (u32) dma_req);
-}
-
-/**
- * cryp_configure_key_values - configures the key values for CRYP operations
- * @device_data: Pointer to the device data struct for base address.
- * @key_reg_index: Key value index register
- * @key_value: The key value struct
- */
-int cryp_configure_key_values(struct cryp_device_data *device_data,
- enum cryp_key_reg_index key_reg_index,
- struct cryp_key_value key_value)
-{
- while (cryp_is_logic_busy(device_data))
- cpu_relax();
-
- switch (key_reg_index) {
- case CRYP_KEY_REG_1:
- writel_relaxed(key_value.key_value_left,
- &device_data->base->key_1_l);
- writel_relaxed(key_value.key_value_right,
- &device_data->base->key_1_r);
- break;
- case CRYP_KEY_REG_2:
- writel_relaxed(key_value.key_value_left,
- &device_data->base->key_2_l);
- writel_relaxed(key_value.key_value_right,
- &device_data->base->key_2_r);
- break;
- case CRYP_KEY_REG_3:
- writel_relaxed(key_value.key_value_left,
- &device_data->base->key_3_l);
- writel_relaxed(key_value.key_value_right,
- &device_data->base->key_3_r);
- break;
- case CRYP_KEY_REG_4:
- writel_relaxed(key_value.key_value_left,
- &device_data->base->key_4_l);
- writel_relaxed(key_value.key_value_right,
- &device_data->base->key_4_r);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/**
- * cryp_configure_init_vector - configures the initialization vector register
- * @device_data: Pointer to the device data struct for base address.
- * @init_vector_index: Specifies the index of the init vector.
- * @init_vector_value: Specifies the value for the init vector.
- */
-int cryp_configure_init_vector(struct cryp_device_data *device_data,
- enum cryp_init_vector_index
- init_vector_index,
- struct cryp_init_vector_value
- init_vector_value)
-{
- while (cryp_is_logic_busy(device_data))
- cpu_relax();
-
- switch (init_vector_index) {
- case CRYP_INIT_VECTOR_INDEX_0:
- writel_relaxed(init_vector_value.init_value_left,
- &device_data->base->init_vect_0_l);
- writel_relaxed(init_vector_value.init_value_right,
- &device_data->base->init_vect_0_r);
- break;
- case CRYP_INIT_VECTOR_INDEX_1:
- writel_relaxed(init_vector_value.init_value_left,
- &device_data->base->init_vect_1_l);
- writel_relaxed(init_vector_value.init_value_right,
- &device_data->base->init_vect_1_r);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/**
- * cryp_save_device_context - Store hardware registers and
- * other device context parameter
- * @device_data: Pointer to the device data struct for base address.
- * @ctx: Crypto device context
- * @cryp_mode: Mode: Polling, Interrupt or DMA
- */
-void cryp_save_device_context(struct cryp_device_data *device_data,
- struct cryp_device_context *ctx,
- int cryp_mode)
-{
- enum cryp_algo_mode algomode;
- struct cryp_register __iomem *src_reg = device_data->base;
- struct cryp_config *config =
- (struct cryp_config *)device_data->current_ctx;
-
- /*
- * Always start by disable the hardware and wait for it to finish the
- * ongoing calculations before trying to reprogram it.
- */
- cryp_activity(device_data, CRYP_CRYPEN_DISABLE);
- cryp_wait_until_done(device_data);
-
- if (cryp_mode == CRYP_MODE_DMA)
- cryp_configure_for_dma(device_data, CRYP_DMA_DISABLE_BOTH);
-
- if (CRYP_TEST_BITS(&src_reg->sr, CRYP_SR_IFEM_MASK) == 0)
- ctx->din = readl_relaxed(&src_reg->din);
-
- ctx->cr = readl_relaxed(&src_reg->cr) & CRYP_CR_CONTEXT_SAVE_MASK;
-
- switch (config->keysize) {
- case CRYP_KEY_SIZE_256:
- ctx->key_4_l = readl_relaxed(&src_reg->key_4_l);
- ctx->key_4_r = readl_relaxed(&src_reg->key_4_r);
- fallthrough;
-
- case CRYP_KEY_SIZE_192:
- ctx->key_3_l = readl_relaxed(&src_reg->key_3_l);
- ctx->key_3_r = readl_relaxed(&src_reg->key_3_r);
- fallthrough;
-
- case CRYP_KEY_SIZE_128:
- ctx->key_2_l = readl_relaxed(&src_reg->key_2_l);
- ctx->key_2_r = readl_relaxed(&src_reg->key_2_r);
- fallthrough;
-
- default:
- ctx->key_1_l = readl_relaxed(&src_reg->key_1_l);
- ctx->key_1_r = readl_relaxed(&src_reg->key_1_r);
- }
-
- /* Save IV for CBC mode for both AES and DES. */
- algomode = ((ctx->cr & CRYP_CR_ALGOMODE_MASK) >> CRYP_CR_ALGOMODE_POS);
- if (algomode == CRYP_ALGO_TDES_CBC ||
- algomode == CRYP_ALGO_DES_CBC ||
- algomode == CRYP_ALGO_AES_CBC) {
- ctx->init_vect_0_l = readl_relaxed(&src_reg->init_vect_0_l);
- ctx->init_vect_0_r = readl_relaxed(&src_reg->init_vect_0_r);
- ctx->init_vect_1_l = readl_relaxed(&src_reg->init_vect_1_l);
- ctx->init_vect_1_r = readl_relaxed(&src_reg->init_vect_1_r);
- }
-}
-
-/**
- * cryp_restore_device_context - Restore hardware registers and
- * other device context parameter
- * @device_data: Pointer to the device data struct for base address.
- * @ctx: Crypto device context
- */
-void cryp_restore_device_context(struct cryp_device_data *device_data,
- struct cryp_device_context *ctx)
-{
- struct cryp_register __iomem *reg = device_data->base;
- struct cryp_config *config =
- (struct cryp_config *)device_data->current_ctx;
-
- /*
- * Fall through for all items in switch statement. DES is captured in
- * the default.
- */
- switch (config->keysize) {
- case CRYP_KEY_SIZE_256:
- writel_relaxed(ctx->key_4_l, ®->key_4_l);
- writel_relaxed(ctx->key_4_r, ®->key_4_r);
- fallthrough;
-
- case CRYP_KEY_SIZE_192:
- writel_relaxed(ctx->key_3_l, ®->key_3_l);
- writel_relaxed(ctx->key_3_r, ®->key_3_r);
- fallthrough;
-
- case CRYP_KEY_SIZE_128:
- writel_relaxed(ctx->key_2_l, ®->key_2_l);
- writel_relaxed(ctx->key_2_r, ®->key_2_r);
- fallthrough;
-
- default:
- writel_relaxed(ctx->key_1_l, ®->key_1_l);
- writel_relaxed(ctx->key_1_r, ®->key_1_r);
- }
-
- /* Restore IV for CBC mode for AES and DES. */
- if (config->algomode == CRYP_ALGO_TDES_CBC ||
- config->algomode == CRYP_ALGO_DES_CBC ||
- config->algomode == CRYP_ALGO_AES_CBC) {
- writel_relaxed(ctx->init_vect_0_l, ®->init_vect_0_l);
- writel_relaxed(ctx->init_vect_0_r, ®->init_vect_0_r);
- writel_relaxed(ctx->init_vect_1_l, ®->init_vect_1_l);
- writel_relaxed(ctx->init_vect_1_r, ®->init_vect_1_r);
- }
-}
diff --git a/drivers/crypto/ux500/cryp/cryp.h b/drivers/crypto/ux500/cryp/cryp.h
deleted file mode 100644
index 59e1557a620a99864c2ab09f880a98ded4cc5751..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/cryp.h
+++ /dev/null
@@ -1,315 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
- * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
- * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
- * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
- * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
- */
-
-#ifndef _CRYP_H_
-#define _CRYP_H_
-
-#include <linux/completion.h>
-#include <linux/dmaengine.h>
-#include <linux/klist.h>
-#include <linux/mutex.h>
-
-#define DEV_DBG_NAME "crypX crypX:"
-
-/* CRYP enable/disable */
-enum cryp_crypen {
- CRYP_CRYPEN_DISABLE = 0,
- CRYP_CRYPEN_ENABLE = 1
-};
-
-/* CRYP Start Computation enable/disable */
-enum cryp_start {
- CRYP_START_DISABLE = 0,
- CRYP_START_ENABLE = 1
-};
-
-/* CRYP Init Signal enable/disable */
-enum cryp_init {
- CRYP_INIT_DISABLE = 0,
- CRYP_INIT_ENABLE = 1
-};
-
-/* Cryp State enable/disable */
-enum cryp_state {
- CRYP_STATE_DISABLE = 0,
- CRYP_STATE_ENABLE = 1
-};
-
-/* Key preparation bit enable */
-enum cryp_key_prep {
- KSE_DISABLED = 0,
- KSE_ENABLED = 1
-};
-
-/* Key size for AES */
-#define CRYP_KEY_SIZE_128 (0)
-#define CRYP_KEY_SIZE_192 (1)
-#define CRYP_KEY_SIZE_256 (2)
-
-/* AES modes */
-enum cryp_algo_mode {
- CRYP_ALGO_TDES_ECB,
- CRYP_ALGO_TDES_CBC,
- CRYP_ALGO_DES_ECB,
- CRYP_ALGO_DES_CBC,
- CRYP_ALGO_AES_ECB,
- CRYP_ALGO_AES_CBC,
- CRYP_ALGO_AES_CTR,
- CRYP_ALGO_AES_XTS
-};
-
-/* Cryp Encryption or Decryption */
-enum cryp_algorithm_dir {
- CRYP_ALGORITHM_ENCRYPT,
- CRYP_ALGORITHM_DECRYPT
-};
-
-/* Hardware access method */
-enum cryp_mode {
- CRYP_MODE_POLLING,
- CRYP_MODE_INTERRUPT,
- CRYP_MODE_DMA
-};
-
-/**
- * struct cryp_config -
- * @keysize: Key size for AES
- * @algomode: AES modes
- * @algodir: Cryp Encryption or Decryption
- *
- * CRYP configuration structure to be passed to set configuration
- */
-struct cryp_config {
- int keysize;
- enum cryp_algo_mode algomode;
- enum cryp_algorithm_dir algodir;
-};
-
-/**
- * struct cryp_protection_config -
- * @privilege_access: Privileged cryp state enable/disable
- * @secure_access: Secure cryp state enable/disable
- *
- * Protection configuration structure for setting privilage access
- */
-struct cryp_protection_config {
- enum cryp_state privilege_access;
- enum cryp_state secure_access;
-};
-
-/* Cryp status */
-enum cryp_status_id {
- CRYP_STATUS_BUSY = 0x10,
- CRYP_STATUS_OUTPUT_FIFO_FULL = 0x08,
- CRYP_STATUS_OUTPUT_FIFO_NOT_EMPTY = 0x04,
- CRYP_STATUS_INPUT_FIFO_NOT_FULL = 0x02,
- CRYP_STATUS_INPUT_FIFO_EMPTY = 0x01
-};
-
-/* Cryp DMA interface */
-#define CRYP_DMA_TX_FIFO 0x08
-#define CRYP_DMA_RX_FIFO 0x10
-
-enum cryp_dma_req_type {
- CRYP_DMA_DISABLE_BOTH,
- CRYP_DMA_ENABLE_IN_DATA,
- CRYP_DMA_ENABLE_OUT_DATA,
- CRYP_DMA_ENABLE_BOTH_DIRECTIONS
-};
-
-enum cryp_dma_channel {
- CRYP_DMA_RX = 0,
- CRYP_DMA_TX
-};
-
-/* Key registers */
-enum cryp_key_reg_index {
- CRYP_KEY_REG_1,
- CRYP_KEY_REG_2,
- CRYP_KEY_REG_3,
- CRYP_KEY_REG_4
-};
-
-/* Key register left and right */
-struct cryp_key_value {
- u32 key_value_left;
- u32 key_value_right;
-};
-
-/* Cryp Initialization structure */
-enum cryp_init_vector_index {
- CRYP_INIT_VECTOR_INDEX_0,
- CRYP_INIT_VECTOR_INDEX_1
-};
-
-/* struct cryp_init_vector_value -
- * @init_value_left
- * @init_value_right
- * */
-struct cryp_init_vector_value {
- u32 init_value_left;
- u32 init_value_right;
-};
-
-/**
- * struct cryp_device_context - structure for a cryp context.
- * @cr: control register
- * @dmacr: DMA control register
- * @imsc: Interrupt mask set/clear register
- * @key_1_l: Key 1l register
- * @key_1_r: Key 1r register
- * @key_2_l: Key 2l register
- * @key_2_r: Key 2r register
- * @key_3_l: Key 3l register
- * @key_3_r: Key 3r register
- * @key_4_l: Key 4l register
- * @key_4_r: Key 4r register
- * @init_vect_0_l: Initialization vector 0l register
- * @init_vect_0_r: Initialization vector 0r register
- * @init_vect_1_l: Initialization vector 1l register
- * @init_vect_1_r: Initialization vector 0r register
- * @din: Data in register
- * @dout: Data out register
- *
- * CRYP power management specifc structure.
- */
-struct cryp_device_context {
- u32 cr;
- u32 dmacr;
- u32 imsc;
-
- u32 key_1_l;
- u32 key_1_r;
- u32 key_2_l;
- u32 key_2_r;
- u32 key_3_l;
- u32 key_3_r;
- u32 key_4_l;
- u32 key_4_r;
-
- u32 init_vect_0_l;
- u32 init_vect_0_r;
- u32 init_vect_1_l;
- u32 init_vect_1_r;
-
- u32 din;
- u32 dout;
-};
-
-struct cryp_dma {
- dma_cap_mask_t mask;
- struct completion cryp_dma_complete;
- struct dma_chan *chan_cryp2mem;
- struct dma_chan *chan_mem2cryp;
- struct stedma40_chan_cfg *cfg_cryp2mem;
- struct stedma40_chan_cfg *cfg_mem2cryp;
- int sg_src_len;
- int sg_dst_len;
- struct scatterlist *sg_src;
- struct scatterlist *sg_dst;
- int nents_src;
- int nents_dst;
-};
-
-/**
- * struct cryp_device_data - structure for a cryp device.
- * @base: Pointer to virtual base address of the cryp device.
- * @phybase: Pointer to physical memory location of the cryp device.
- * @dev: Pointer to the devices dev structure.
- * @clk: Pointer to the device's clock control.
- * @irq: IRQ number
- * @pwr_regulator: Pointer to the device's power control.
- * @power_status: Current status of the power.
- * @ctx_lock: Lock for current_ctx.
- * @current_ctx: Pointer to the currently allocated context.
- * @list_node: For inclusion into a klist.
- * @dma: The dma structure holding channel configuration.
- * @power_state: TRUE = power state on, FALSE = power state off.
- * @power_state_spinlock: Spinlock for power_state.
- * @restore_dev_ctx: TRUE = saved ctx, FALSE = no saved ctx.
- */
-struct cryp_device_data {
- struct cryp_register __iomem *base;
- phys_addr_t phybase;
- struct device *dev;
- struct clk *clk;
- int irq;
- struct regulator *pwr_regulator;
- int power_status;
- spinlock_t ctx_lock;
- struct cryp_ctx *current_ctx;
- struct klist_node list_node;
- struct cryp_dma dma;
- bool power_state;
- spinlock_t power_state_spinlock;
- bool restore_dev_ctx;
-};
-
-void cryp_wait_until_done(struct cryp_device_data *device_data);
-
-/* Initialization functions */
-
-int cryp_check(struct cryp_device_data *device_data);
-
-void cryp_activity(struct cryp_device_data *device_data,
- enum cryp_crypen cryp_crypen);
-
-void cryp_flush_inoutfifo(struct cryp_device_data *device_data);
-
-int cryp_set_configuration(struct cryp_device_data *device_data,
- struct cryp_config *cryp_config,
- u32 *control_register);
-
-void cryp_configure_for_dma(struct cryp_device_data *device_data,
- enum cryp_dma_req_type dma_req);
-
-int cryp_configure_key_values(struct cryp_device_data *device_data,
- enum cryp_key_reg_index key_reg_index,
- struct cryp_key_value key_value);
-
-int cryp_configure_init_vector(struct cryp_device_data *device_data,
- enum cryp_init_vector_index
- init_vector_index,
- struct cryp_init_vector_value
- init_vector_value);
-
-int cryp_configure_protection(struct cryp_device_data *device_data,
- struct cryp_protection_config *p_protect_config);
-
-/* Power management funtions */
-void cryp_save_device_context(struct cryp_device_data *device_data,
- struct cryp_device_context *ctx,
- int cryp_mode);
-
-void cryp_restore_device_context(struct cryp_device_data *device_data,
- struct cryp_device_context *ctx);
-
-/* Data transfer and status bits. */
-int cryp_is_logic_busy(struct cryp_device_data *device_data);
-
-int cryp_get_status(struct cryp_device_data *device_data);
-
-/**
- * cryp_write_indata - This routine writes 32 bit data into the data input
- * register of the cryptography IP.
- * @device_data: Pointer to the device data struct for base address.
- * @write_data: Data to write.
- */
-int cryp_write_indata(struct cryp_device_data *device_data, u32 write_data);
-
-/**
- * cryp_read_outdata - This routine reads the data from the data output
- * register of the CRYP logic
- * @device_data: Pointer to the device data struct for base address.
- * @read_data: Read the data from the output FIFO.
- */
-int cryp_read_outdata(struct cryp_device_data *device_data, u32 *read_data);
-
-#endif /* _CRYP_H_ */
diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c
deleted file mode 100644
index 5a57c9afd8c886931d12ff454d4f700a0a320ab1..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/cryp_core.c
+++ /dev/null
@@ -1,1600 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
- * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
- * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
- * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
- * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
- * Author: Andreas Westin <andreas.westin@stericsson.com> for ST-Ericsson.
- */
-
-#include <linux/clk.h>
-#include <linux/completion.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/dmaengine.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irqreturn.h>
-#include <linux/kernel.h>
-#include <linux/klist.h>
-#include <linux/module.h>
-#include <linux/mod_devicetable.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/consumer.h>
-#include <linux/semaphore.h>
-#include <linux/platform_data/dma-ste-dma40.h>
-
-#include <crypto/aes.h>
-#include <crypto/ctr.h>
-#include <crypto/internal/des.h>
-#include <crypto/internal/skcipher.h>
-#include <crypto/scatterwalk.h>
-
-#include <linux/platform_data/crypto-ux500.h>
-
-#include "cryp_p.h"
-#include "cryp.h"
-
-#define CRYP_MAX_KEY_SIZE 32
-#define BYTES_PER_WORD 4
-
-static int cryp_mode;
-static atomic_t session_id;
-
-static struct stedma40_chan_cfg *mem_to_engine;
-static struct stedma40_chan_cfg *engine_to_mem;
-
-/**
- * struct cryp_driver_data - data specific to the driver.
- *
- * @device_list: A list of registered devices to choose from.
- * @device_allocation: A semaphore initialized with number of devices.
- */
-struct cryp_driver_data {
- struct klist device_list;
- struct semaphore device_allocation;
-};
-
-/**
- * struct cryp_ctx - Crypto context
- * @config: Crypto mode.
- * @key: Key array.
- * @keylen: Length of key.
- * @iv: Pointer to initialization vector.
- * @indata: Pointer to indata.
- * @outdata: Pointer to outdata.
- * @datalen: Length of indata.
- * @outlen: Length of outdata.
- * @blocksize: Size of blocks.
- * @updated: Updated flag.
- * @dev_ctx: Device dependent context.
- * @device: Pointer to the device.
- * @session_id: Atomic session ID.
- */
-struct cryp_ctx {
- struct cryp_config config;
- u8 key[CRYP_MAX_KEY_SIZE];
- u32 keylen;
- u8 *iv;
- const u8 *indata;
- u8 *outdata;
- u32 datalen;
- u32 outlen;
- u32 blocksize;
- u8 updated;
- struct cryp_device_context dev_ctx;
- struct cryp_device_data *device;
- u32 session_id;
-};
-
-static struct cryp_driver_data driver_data;
-
-/**
- * swap_bits_in_byte - mirror the bits in a byte
- * @b: the byte to be mirrored
- *
- * The bits are swapped the following way:
- * Byte b include bits 0-7, nibble 1 (n1) include bits 0-3 and
- * nibble 2 (n2) bits 4-7.
- *
- * Nibble 1 (n1):
- * (The "old" (moved) bit is replaced with a zero)
- * 1. Move bit 6 and 7, 4 positions to the left.
- * 2. Move bit 3 and 5, 2 positions to the left.
- * 3. Move bit 1-4, 1 position to the left.
- *
- * Nibble 2 (n2):
- * 1. Move bit 0 and 1, 4 positions to the right.
- * 2. Move bit 2 and 4, 2 positions to the right.
- * 3. Move bit 3-6, 1 position to the right.
- *
- * Combine the two nibbles to a complete and swapped byte.
- */
-
-static inline u8 swap_bits_in_byte(u8 b)
-{
-#define R_SHIFT_4_MASK 0xc0 /* Bits 6 and 7, right shift 4 */
-#define R_SHIFT_2_MASK 0x28 /* (After right shift 4) Bits 3 and 5,
- right shift 2 */
-#define R_SHIFT_1_MASK 0x1e /* (After right shift 2) Bits 1-4,
- right shift 1 */
-#define L_SHIFT_4_MASK 0x03 /* Bits 0 and 1, left shift 4 */
-#define L_SHIFT_2_MASK 0x14 /* (After left shift 4) Bits 2 and 4,
- left shift 2 */
-#define L_SHIFT_1_MASK 0x78 /* (After left shift 1) Bits 3-6,
- left shift 1 */
-
- u8 n1;
- u8 n2;
-
- /* Swap most significant nibble */
- /* Right shift 4, bits 6 and 7 */
- n1 = ((b & R_SHIFT_4_MASK) >> 4) | (b & ~(R_SHIFT_4_MASK >> 4));
- /* Right shift 2, bits 3 and 5 */
- n1 = ((n1 & R_SHIFT_2_MASK) >> 2) | (n1 & ~(R_SHIFT_2_MASK >> 2));
- /* Right shift 1, bits 1-4 */
- n1 = (n1 & R_SHIFT_1_MASK) >> 1;
-
- /* Swap least significant nibble */
- /* Left shift 4, bits 0 and 1 */
- n2 = ((b & L_SHIFT_4_MASK) << 4) | (b & ~(L_SHIFT_4_MASK << 4));
- /* Left shift 2, bits 2 and 4 */
- n2 = ((n2 & L_SHIFT_2_MASK) << 2) | (n2 & ~(L_SHIFT_2_MASK << 2));
- /* Left shift 1, bits 3-6 */
- n2 = (n2 & L_SHIFT_1_MASK) << 1;
-
- return n1 | n2;
-}
-
-static inline void swap_words_in_key_and_bits_in_byte(const u8 *in,
- u8 *out, u32 len)
-{
- unsigned int i = 0;
- int j;
- int index = 0;
-
- j = len - BYTES_PER_WORD;
- while (j >= 0) {
- for (i = 0; i < BYTES_PER_WORD; i++) {
- index = len - j - BYTES_PER_WORD + i;
- out[j + i] =
- swap_bits_in_byte(in[index]);
- }
- j -= BYTES_PER_WORD;
- }
-}
-
-static void add_session_id(struct cryp_ctx *ctx)
-{
- /*
- * We never want 0 to be a valid value, since this is the default value
- * for the software context.
- */
- if (unlikely(atomic_inc_and_test(&session_id)))
- atomic_inc(&session_id);
-
- ctx->session_id = atomic_read(&session_id);
-}
-
-static irqreturn_t cryp_interrupt_handler(int irq, void *param)
-{
- struct cryp_ctx *ctx;
- int count;
- struct cryp_device_data *device_data;
-
- if (param == NULL) {
- BUG_ON(!param);
- return IRQ_HANDLED;
- }
-
- /* The device is coming from the one found in hw_crypt_noxts. */
- device_data = (struct cryp_device_data *)param;
-
- ctx = device_data->current_ctx;
-
- if (ctx == NULL) {
- BUG_ON(!ctx);
- return IRQ_HANDLED;
- }
-
- dev_dbg(ctx->device->dev, "[%s] (len: %d) %s, ", __func__, ctx->outlen,
- cryp_pending_irq_src(device_data, CRYP_IRQ_SRC_OUTPUT_FIFO) ?
- "out" : "in");
-
- if (cryp_pending_irq_src(device_data,
- CRYP_IRQ_SRC_OUTPUT_FIFO)) {
- if (ctx->outlen / ctx->blocksize > 0) {
- count = ctx->blocksize / 4;
-
- readsl(&device_data->base->dout, ctx->outdata, count);
- ctx->outdata += count;
- ctx->outlen -= count;
-
- if (ctx->outlen == 0) {
- cryp_disable_irq_src(device_data,
- CRYP_IRQ_SRC_OUTPUT_FIFO);
- }
- }
- } else if (cryp_pending_irq_src(device_data,
- CRYP_IRQ_SRC_INPUT_FIFO)) {
- if (ctx->datalen / ctx->blocksize > 0) {
- count = ctx->blocksize / 4;
-
- writesl(&device_data->base->din, ctx->indata, count);
-
- ctx->indata += count;
- ctx->datalen -= count;
-
- if (ctx->datalen == 0)
- cryp_disable_irq_src(device_data,
- CRYP_IRQ_SRC_INPUT_FIFO);
-
- if (ctx->config.algomode == CRYP_ALGO_AES_XTS) {
- CRYP_PUT_BITS(&device_data->base->cr,
- CRYP_START_ENABLE,
- CRYP_CR_START_POS,
- CRYP_CR_START_MASK);
-
- cryp_wait_until_done(device_data);
- }
- }
- }
-
- return IRQ_HANDLED;
-}
-
-static int mode_is_aes(enum cryp_algo_mode mode)
-{
- return CRYP_ALGO_AES_ECB == mode ||
- CRYP_ALGO_AES_CBC == mode ||
- CRYP_ALGO_AES_CTR == mode ||
- CRYP_ALGO_AES_XTS == mode;
-}
-
-static int cfg_iv(struct cryp_device_data *device_data, u32 left, u32 right,
- enum cryp_init_vector_index index)
-{
- struct cryp_init_vector_value vector_value;
-
- dev_dbg(device_data->dev, "[%s]", __func__);
-
- vector_value.init_value_left = left;
- vector_value.init_value_right = right;
-
- return cryp_configure_init_vector(device_data,
- index,
- vector_value);
-}
-
-static int cfg_ivs(struct cryp_device_data *device_data, struct cryp_ctx *ctx)
-{
- int i;
- int status = 0;
- int num_of_regs = ctx->blocksize / 8;
- __be32 *civ = (__be32 *)ctx->iv;
- u32 iv[AES_BLOCK_SIZE / 4];
-
- dev_dbg(device_data->dev, "[%s]", __func__);
-
- /*
- * Since we loop on num_of_regs we need to have a check in case
- * someone provides an incorrect blocksize which would force calling
- * cfg_iv with i greater than 2 which is an error.
- */
- if (num_of_regs > 2) {
- dev_err(device_data->dev, "[%s] Incorrect blocksize %d",
- __func__, ctx->blocksize);
- return -EINVAL;
- }
-
- for (i = 0; i < ctx->blocksize / 4; i++)
- iv[i] = be32_to_cpup(civ + i);
-
- for (i = 0; i < num_of_regs; i++) {
- status = cfg_iv(device_data, iv[i*2], iv[i*2+1],
- (enum cryp_init_vector_index) i);
- if (status != 0)
- return status;
- }
- return status;
-}
-
-static int set_key(struct cryp_device_data *device_data,
- u32 left_key,
- u32 right_key,
- enum cryp_key_reg_index index)
-{
- struct cryp_key_value key_value;
- int cryp_error;
-
- dev_dbg(device_data->dev, "[%s]", __func__);
-
- key_value.key_value_left = left_key;
- key_value.key_value_right = right_key;
-
- cryp_error = cryp_configure_key_values(device_data,
- index,
- key_value);
- if (cryp_error != 0)
- dev_err(device_data->dev, "[%s]: "
- "cryp_configure_key_values() failed!", __func__);
-
- return cryp_error;
-}
-
-static int cfg_keys(struct cryp_ctx *ctx)
-{
- int i;
- int num_of_regs = ctx->keylen / 8;
- u32 swapped_key[CRYP_MAX_KEY_SIZE / 4];
- __be32 *ckey = (__be32 *)ctx->key;
- int cryp_error = 0;
-
- dev_dbg(ctx->device->dev, "[%s]", __func__);
-
- if (mode_is_aes(ctx->config.algomode)) {
- swap_words_in_key_and_bits_in_byte((u8 *)ckey,
- (u8 *)swapped_key,
- ctx->keylen);
- } else {
- for (i = 0; i < ctx->keylen / 4; i++)
- swapped_key[i] = be32_to_cpup(ckey + i);
- }
-
- for (i = 0; i < num_of_regs; i++) {
- cryp_error = set_key(ctx->device,
- swapped_key[i * 2],
- swapped_key[i * 2 + 1],
- (enum cryp_key_reg_index) i);
-
- if (cryp_error != 0) {
- dev_err(ctx->device->dev, "[%s]: set_key() failed!",
- __func__);
- return cryp_error;
- }
- }
- return cryp_error;
-}
-
-static int cryp_setup_context(struct cryp_ctx *ctx,
- struct cryp_device_data *device_data)
-{
- u32 control_register = CRYP_CR_DEFAULT;
-
- switch (cryp_mode) {
- case CRYP_MODE_INTERRUPT:
- writel_relaxed(CRYP_IMSC_DEFAULT, &device_data->base->imsc);
- break;
-
- case CRYP_MODE_DMA:
- writel_relaxed(CRYP_DMACR_DEFAULT, &device_data->base->dmacr);
- break;
-
- default:
- break;
- }
-
- if (ctx->updated == 0) {
- cryp_flush_inoutfifo(device_data);
- if (cfg_keys(ctx) != 0) {
- dev_err(ctx->device->dev, "[%s]: cfg_keys failed!",
- __func__);
- return -EINVAL;
- }
-
- if (ctx->iv &&
- CRYP_ALGO_AES_ECB != ctx->config.algomode &&
- CRYP_ALGO_DES_ECB != ctx->config.algomode &&
- CRYP_ALGO_TDES_ECB != ctx->config.algomode) {
- if (cfg_ivs(device_data, ctx) != 0)
- return -EPERM;
- }
-
- cryp_set_configuration(device_data, &ctx->config,
- &control_register);
- add_session_id(ctx);
- } else if (ctx->updated == 1 &&
- ctx->session_id != atomic_read(&session_id)) {
- cryp_flush_inoutfifo(device_data);
- cryp_restore_device_context(device_data, &ctx->dev_ctx);
-
- add_session_id(ctx);
- control_register = ctx->dev_ctx.cr;
- } else
- control_register = ctx->dev_ctx.cr;
-
- writel(control_register |
- (CRYP_CRYPEN_ENABLE << CRYP_CR_CRYPEN_POS),
- &device_data->base->cr);
-
- return 0;
-}
-
-static int cryp_get_device_data(struct cryp_ctx *ctx,
- struct cryp_device_data **device_data)
-{
- int ret;
- struct klist_iter device_iterator;
- struct klist_node *device_node;
- struct cryp_device_data *local_device_data = NULL;
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- /* Wait until a device is available */
- ret = down_interruptible(&driver_data.device_allocation);
- if (ret)
- return ret; /* Interrupted */
-
- /* Select a device */
- klist_iter_init(&driver_data.device_list, &device_iterator);
-
- device_node = klist_next(&device_iterator);
- while (device_node) {
- local_device_data = container_of(device_node,
- struct cryp_device_data, list_node);
- spin_lock(&local_device_data->ctx_lock);
- /* current_ctx allocates a device, NULL = unallocated */
- if (local_device_data->current_ctx) {
- device_node = klist_next(&device_iterator);
- } else {
- local_device_data->current_ctx = ctx;
- ctx->device = local_device_data;
- spin_unlock(&local_device_data->ctx_lock);
- break;
- }
- spin_unlock(&local_device_data->ctx_lock);
- }
- klist_iter_exit(&device_iterator);
-
- if (!device_node) {
- /**
- * No free device found.
- * Since we allocated a device with down_interruptible, this
- * should not be able to happen.
- * Number of available devices, which are contained in
- * device_allocation, is therefore decremented by not doing
- * an up(device_allocation).
- */
- return -EBUSY;
- }
-
- *device_data = local_device_data;
-
- return 0;
-}
-
-static void cryp_dma_setup_channel(struct cryp_device_data *device_data,
- struct device *dev)
-{
- struct dma_slave_config mem2cryp = {
- .direction = DMA_MEM_TO_DEV,
- .dst_addr = device_data->phybase + CRYP_DMA_TX_FIFO,
- .dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
- .dst_maxburst = 4,
- };
- struct dma_slave_config cryp2mem = {
- .direction = DMA_DEV_TO_MEM,
- .src_addr = device_data->phybase + CRYP_DMA_RX_FIFO,
- .src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
- .src_maxburst = 4,
- };
-
- dma_cap_zero(device_data->dma.mask);
- dma_cap_set(DMA_SLAVE, device_data->dma.mask);
-
- device_data->dma.cfg_mem2cryp = mem_to_engine;
- device_data->dma.chan_mem2cryp =
- dma_request_channel(device_data->dma.mask,
- stedma40_filter,
- device_data->dma.cfg_mem2cryp);
-
- device_data->dma.cfg_cryp2mem = engine_to_mem;
- device_data->dma.chan_cryp2mem =
- dma_request_channel(device_data->dma.mask,
- stedma40_filter,
- device_data->dma.cfg_cryp2mem);
-
- dmaengine_slave_config(device_data->dma.chan_mem2cryp, &mem2cryp);
- dmaengine_slave_config(device_data->dma.chan_cryp2mem, &cryp2mem);
-
- init_completion(&device_data->dma.cryp_dma_complete);
-}
-
-static void cryp_dma_out_callback(void *data)
-{
- struct cryp_ctx *ctx = (struct cryp_ctx *) data;
- dev_dbg(ctx->device->dev, "[%s]: ", __func__);
-
- complete(&ctx->device->dma.cryp_dma_complete);
-}
-
-static int cryp_set_dma_transfer(struct cryp_ctx *ctx,
- struct scatterlist *sg,
- int len,
- enum dma_data_direction direction)
-{
- struct dma_async_tx_descriptor *desc;
- struct dma_chan *channel = NULL;
- dma_cookie_t cookie;
-
- dev_dbg(ctx->device->dev, "[%s]: ", __func__);
-
- if (unlikely(!IS_ALIGNED((unsigned long)sg, 4))) {
- dev_err(ctx->device->dev, "[%s]: Data in sg list isn't "
- "aligned! Addr: 0x%08lx", __func__, (unsigned long)sg);
- return -EFAULT;
- }
-
- switch (direction) {
- case DMA_TO_DEVICE:
- channel = ctx->device->dma.chan_mem2cryp;
- ctx->device->dma.sg_src = sg;
- ctx->device->dma.sg_src_len = dma_map_sg(channel->device->dev,
- ctx->device->dma.sg_src,
- ctx->device->dma.nents_src,
- direction);
-
- if (!ctx->device->dma.sg_src_len) {
- dev_dbg(ctx->device->dev,
- "[%s]: Could not map the sg list (TO_DEVICE)",
- __func__);
- return -EFAULT;
- }
-
- dev_dbg(ctx->device->dev, "[%s]: Setting up DMA for buffer "
- "(TO_DEVICE)", __func__);
-
- desc = dmaengine_prep_slave_sg(channel,
- ctx->device->dma.sg_src,
- ctx->device->dma.sg_src_len,
- DMA_MEM_TO_DEV, DMA_CTRL_ACK);
- break;
-
- case DMA_FROM_DEVICE:
- channel = ctx->device->dma.chan_cryp2mem;
- ctx->device->dma.sg_dst = sg;
- ctx->device->dma.sg_dst_len = dma_map_sg(channel->device->dev,
- ctx->device->dma.sg_dst,
- ctx->device->dma.nents_dst,
- direction);
-
- if (!ctx->device->dma.sg_dst_len) {
- dev_dbg(ctx->device->dev,
- "[%s]: Could not map the sg list (FROM_DEVICE)",
- __func__);
- return -EFAULT;
- }
-
- dev_dbg(ctx->device->dev, "[%s]: Setting up DMA for buffer "
- "(FROM_DEVICE)", __func__);
-
- desc = dmaengine_prep_slave_sg(channel,
- ctx->device->dma.sg_dst,
- ctx->device->dma.sg_dst_len,
- DMA_DEV_TO_MEM,
- DMA_CTRL_ACK |
- DMA_PREP_INTERRUPT);
-
- desc->callback = cryp_dma_out_callback;
- desc->callback_param = ctx;
- break;
-
- default:
- dev_dbg(ctx->device->dev, "[%s]: Invalid DMA direction",
- __func__);
- return -EFAULT;
- }
-
- cookie = dmaengine_submit(desc);
- if (dma_submit_error(cookie)) {
- dev_dbg(ctx->device->dev, "[%s]: DMA submission failed\n",
- __func__);
- return cookie;
- }
-
- dma_async_issue_pending(channel);
-
- return 0;
-}
-
-static void cryp_dma_done(struct cryp_ctx *ctx)
-{
- struct dma_chan *chan;
-
- dev_dbg(ctx->device->dev, "[%s]: ", __func__);
-
- chan = ctx->device->dma.chan_mem2cryp;
- dmaengine_terminate_all(chan);
- dma_unmap_sg(chan->device->dev, ctx->device->dma.sg_src,
- ctx->device->dma.nents_src, DMA_TO_DEVICE);
-
- chan = ctx->device->dma.chan_cryp2mem;
- dmaengine_terminate_all(chan);
- dma_unmap_sg(chan->device->dev, ctx->device->dma.sg_dst,
- ctx->device->dma.nents_dst, DMA_FROM_DEVICE);
-}
-
-static int cryp_dma_write(struct cryp_ctx *ctx, struct scatterlist *sg,
- int len)
-{
- int error = cryp_set_dma_transfer(ctx, sg, len, DMA_TO_DEVICE);
- dev_dbg(ctx->device->dev, "[%s]: ", __func__);
-
- if (error) {
- dev_dbg(ctx->device->dev, "[%s]: cryp_set_dma_transfer() "
- "failed", __func__);
- return error;
- }
-
- return len;
-}
-
-static int cryp_dma_read(struct cryp_ctx *ctx, struct scatterlist *sg, int len)
-{
- int error = cryp_set_dma_transfer(ctx, sg, len, DMA_FROM_DEVICE);
- if (error) {
- dev_dbg(ctx->device->dev, "[%s]: cryp_set_dma_transfer() "
- "failed", __func__);
- return error;
- }
-
- return len;
-}
-
-static void cryp_polling_mode(struct cryp_ctx *ctx,
- struct cryp_device_data *device_data)
-{
- int len = ctx->blocksize / BYTES_PER_WORD;
- int remaining_length = ctx->datalen;
- u32 *indata = (u32 *)ctx->indata;
- u32 *outdata = (u32 *)ctx->outdata;
-
- while (remaining_length > 0) {
- writesl(&device_data->base->din, indata, len);
- indata += len;
- remaining_length -= (len * BYTES_PER_WORD);
- cryp_wait_until_done(device_data);
-
- readsl(&device_data->base->dout, outdata, len);
- outdata += len;
- cryp_wait_until_done(device_data);
- }
-}
-
-static int cryp_disable_power(struct device *dev,
- struct cryp_device_data *device_data,
- bool save_device_context)
-{
- int ret = 0;
-
- dev_dbg(dev, "[%s]", __func__);
-
- spin_lock(&device_data->power_state_spinlock);
- if (!device_data->power_state)
- goto out;
-
- spin_lock(&device_data->ctx_lock);
- if (save_device_context && device_data->current_ctx) {
- cryp_save_device_context(device_data,
- &device_data->current_ctx->dev_ctx,
- cryp_mode);
- device_data->restore_dev_ctx = true;
- }
- spin_unlock(&device_data->ctx_lock);
-
- clk_disable(device_data->clk);
- ret = regulator_disable(device_data->pwr_regulator);
- if (ret)
- dev_err(dev, "[%s]: "
- "regulator_disable() failed!",
- __func__);
-
- device_data->power_state = false;
-
-out:
- spin_unlock(&device_data->power_state_spinlock);
-
- return ret;
-}
-
-static int cryp_enable_power(
- struct device *dev,
- struct cryp_device_data *device_data,
- bool restore_device_context)
-{
- int ret = 0;
-
- dev_dbg(dev, "[%s]", __func__);
-
- spin_lock(&device_data->power_state_spinlock);
- if (!device_data->power_state) {
- ret = regulator_enable(device_data->pwr_regulator);
- if (ret) {
- dev_err(dev, "[%s]: regulator_enable() failed!",
- __func__);
- goto out;
- }
-
- ret = clk_enable(device_data->clk);
- if (ret) {
- dev_err(dev, "[%s]: clk_enable() failed!",
- __func__);
- regulator_disable(device_data->pwr_regulator);
- goto out;
- }
- device_data->power_state = true;
- }
-
- if (device_data->restore_dev_ctx) {
- spin_lock(&device_data->ctx_lock);
- if (restore_device_context && device_data->current_ctx) {
- device_data->restore_dev_ctx = false;
- cryp_restore_device_context(device_data,
- &device_data->current_ctx->dev_ctx);
- }
- spin_unlock(&device_data->ctx_lock);
- }
-out:
- spin_unlock(&device_data->power_state_spinlock);
-
- return ret;
-}
-
-static int hw_crypt_noxts(struct cryp_ctx *ctx,
- struct cryp_device_data *device_data)
-{
- int ret = 0;
-
- const u8 *indata = ctx->indata;
- u8 *outdata = ctx->outdata;
- u32 datalen = ctx->datalen;
- u32 outlen = datalen;
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- ctx->outlen = ctx->datalen;
-
- if (unlikely(!IS_ALIGNED((unsigned long)indata, 4))) {
- pr_debug(DEV_DBG_NAME " [%s]: Data isn't aligned! Addr: "
- "0x%08lx", __func__, (unsigned long)indata);
- return -EINVAL;
- }
-
- ret = cryp_setup_context(ctx, device_data);
-
- if (ret)
- goto out;
-
- if (cryp_mode == CRYP_MODE_INTERRUPT) {
- cryp_enable_irq_src(device_data, CRYP_IRQ_SRC_INPUT_FIFO |
- CRYP_IRQ_SRC_OUTPUT_FIFO);
-
- /*
- * ctx->outlen is decremented in the cryp_interrupt_handler
- * function. We had to add cpu_relax() (barrier) to make sure
- * that gcc didn't optimze away this variable.
- */
- while (ctx->outlen > 0)
- cpu_relax();
- } else if (cryp_mode == CRYP_MODE_POLLING ||
- cryp_mode == CRYP_MODE_DMA) {
- /*
- * The reason for having DMA in this if case is that if we are
- * running cryp_mode = 2, then we separate DMA routines for
- * handling cipher/plaintext > blocksize, except when
- * running the normal CRYPTO_ALG_TYPE_CIPHER, then we still use
- * the polling mode. Overhead of doing DMA setup eats up the
- * benefits using it.
- */
- cryp_polling_mode(ctx, device_data);
- } else {
- dev_err(ctx->device->dev, "[%s]: Invalid operation mode!",
- __func__);
- ret = -EPERM;
- goto out;
- }
-
- cryp_save_device_context(device_data, &ctx->dev_ctx, cryp_mode);
- ctx->updated = 1;
-
-out:
- ctx->indata = indata;
- ctx->outdata = outdata;
- ctx->datalen = datalen;
- ctx->outlen = outlen;
-
- return ret;
-}
-
-static int get_nents(struct scatterlist *sg, int nbytes)
-{
- int nents = 0;
-
- while (nbytes > 0) {
- nbytes -= sg->length;
- sg = sg_next(sg);
- nents++;
- }
-
- return nents;
-}
-
-static int ablk_dma_crypt(struct skcipher_request *areq)
-{
- struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
- struct cryp_ctx *ctx = crypto_skcipher_ctx(cipher);
- struct cryp_device_data *device_data;
-
- int bytes_written = 0;
- int bytes_read = 0;
- int ret;
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- ctx->datalen = areq->cryptlen;
- ctx->outlen = areq->cryptlen;
-
- ret = cryp_get_device_data(ctx, &device_data);
- if (ret)
- return ret;
-
- ret = cryp_setup_context(ctx, device_data);
- if (ret)
- goto out;
-
- /* We have the device now, so store the nents in the dma struct. */
- ctx->device->dma.nents_src = get_nents(areq->src, ctx->datalen);
- ctx->device->dma.nents_dst = get_nents(areq->dst, ctx->outlen);
-
- /* Enable DMA in- and output. */
- cryp_configure_for_dma(device_data, CRYP_DMA_ENABLE_BOTH_DIRECTIONS);
-
- bytes_written = cryp_dma_write(ctx, areq->src, ctx->datalen);
- bytes_read = cryp_dma_read(ctx, areq->dst, bytes_written);
-
- wait_for_completion(&ctx->device->dma.cryp_dma_complete);
- cryp_dma_done(ctx);
-
- cryp_save_device_context(device_data, &ctx->dev_ctx, cryp_mode);
- ctx->updated = 1;
-
-out:
- spin_lock(&device_data->ctx_lock);
- device_data->current_ctx = NULL;
- ctx->device = NULL;
- spin_unlock(&device_data->ctx_lock);
-
- /*
- * The down_interruptible part for this semaphore is called in
- * cryp_get_device_data.
- */
- up(&driver_data.device_allocation);
-
- if (unlikely(bytes_written != bytes_read))
- return -EPERM;
-
- return 0;
-}
-
-static int ablk_crypt(struct skcipher_request *areq)
-{
- struct skcipher_walk walk;
- struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
- struct cryp_ctx *ctx = crypto_skcipher_ctx(cipher);
- struct cryp_device_data *device_data;
- unsigned long src_paddr;
- unsigned long dst_paddr;
- int ret;
- int nbytes;
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- ret = cryp_get_device_data(ctx, &device_data);
- if (ret)
- goto out;
-
- ret = skcipher_walk_async(&walk, areq);
-
- if (ret) {
- pr_err(DEV_DBG_NAME "[%s]: skcipher_walk_async() failed!",
- __func__);
- goto out;
- }
-
- while ((nbytes = walk.nbytes) > 0) {
- ctx->iv = walk.iv;
- src_paddr = (page_to_phys(walk.src.phys.page) + walk.src.phys.offset);
- ctx->indata = phys_to_virt(src_paddr);
-
- dst_paddr = (page_to_phys(walk.dst.phys.page) + walk.dst.phys.offset);
- ctx->outdata = phys_to_virt(dst_paddr);
-
- ctx->datalen = nbytes - (nbytes % ctx->blocksize);
-
- ret = hw_crypt_noxts(ctx, device_data);
- if (ret)
- goto out;
-
- nbytes -= ctx->datalen;
- ret = skcipher_walk_done(&walk, nbytes);
- if (ret)
- goto out;
- }
-
-out:
- /* Release the device */
- spin_lock(&device_data->ctx_lock);
- device_data->current_ctx = NULL;
- ctx->device = NULL;
- spin_unlock(&device_data->ctx_lock);
-
- /*
- * The down_interruptible part for this semaphore is called in
- * cryp_get_device_data.
- */
- up(&driver_data.device_allocation);
-
- return ret;
-}
-
-static int aes_skcipher_setkey(struct crypto_skcipher *cipher,
- const u8 *key, unsigned int keylen)
-{
- struct cryp_ctx *ctx = crypto_skcipher_ctx(cipher);
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- switch (keylen) {
- case AES_KEYSIZE_128:
- ctx->config.keysize = CRYP_KEY_SIZE_128;
- break;
-
- case AES_KEYSIZE_192:
- ctx->config.keysize = CRYP_KEY_SIZE_192;
- break;
-
- case AES_KEYSIZE_256:
- ctx->config.keysize = CRYP_KEY_SIZE_256;
- break;
-
- default:
- pr_err(DEV_DBG_NAME "[%s]: Unknown keylen!", __func__);
- return -EINVAL;
- }
-
- memcpy(ctx->key, key, keylen);
- ctx->keylen = keylen;
-
- ctx->updated = 0;
-
- return 0;
-}
-
-static int des_skcipher_setkey(struct crypto_skcipher *cipher,
- const u8 *key, unsigned int keylen)
-{
- struct cryp_ctx *ctx = crypto_skcipher_ctx(cipher);
- int err;
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- err = verify_skcipher_des_key(cipher, key);
- if (err)
- return err;
-
- memcpy(ctx->key, key, keylen);
- ctx->keylen = keylen;
-
- ctx->updated = 0;
- return 0;
-}
-
-static int des3_skcipher_setkey(struct crypto_skcipher *cipher,
- const u8 *key, unsigned int keylen)
-{
- struct cryp_ctx *ctx = crypto_skcipher_ctx(cipher);
- int err;
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- err = verify_skcipher_des3_key(cipher, key);
- if (err)
- return err;
-
- memcpy(ctx->key, key, keylen);
- ctx->keylen = keylen;
-
- ctx->updated = 0;
- return 0;
-}
-
-static int cryp_blk_encrypt(struct skcipher_request *areq)
-{
- struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
- struct cryp_ctx *ctx = crypto_skcipher_ctx(cipher);
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- ctx->config.algodir = CRYP_ALGORITHM_ENCRYPT;
-
- /*
- * DMA does not work for DES due to a hw bug */
- if (cryp_mode == CRYP_MODE_DMA && mode_is_aes(ctx->config.algomode))
- return ablk_dma_crypt(areq);
-
- /* For everything except DMA, we run the non DMA version. */
- return ablk_crypt(areq);
-}
-
-static int cryp_blk_decrypt(struct skcipher_request *areq)
-{
- struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
- struct cryp_ctx *ctx = crypto_skcipher_ctx(cipher);
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- ctx->config.algodir = CRYP_ALGORITHM_DECRYPT;
-
- /* DMA does not work for DES due to a hw bug */
- if (cryp_mode == CRYP_MODE_DMA && mode_is_aes(ctx->config.algomode))
- return ablk_dma_crypt(areq);
-
- /* For everything except DMA, we run the non DMA version. */
- return ablk_crypt(areq);
-}
-
-struct cryp_algo_template {
- enum cryp_algo_mode algomode;
- struct skcipher_alg skcipher;
-};
-
-static int cryp_init_tfm(struct crypto_skcipher *tfm)
-{
- struct cryp_ctx *ctx = crypto_skcipher_ctx(tfm);
- struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
- struct cryp_algo_template *cryp_alg = container_of(alg,
- struct cryp_algo_template,
- skcipher);
-
- ctx->config.algomode = cryp_alg->algomode;
- ctx->blocksize = crypto_skcipher_blocksize(tfm);
-
- return 0;
-}
-
-static struct cryp_algo_template cryp_algs[] = {
- {
- .algomode = CRYP_ALGO_AES_ECB,
- .skcipher = {
- .base.cra_name = "ecb(aes)",
- .base.cra_driver_name = "ecb-aes-ux500",
- .base.cra_priority = 300,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
- .base.cra_blocksize = AES_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct cryp_ctx),
- .base.cra_alignmask = 3,
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .setkey = aes_skcipher_setkey,
- .encrypt = cryp_blk_encrypt,
- .decrypt = cryp_blk_decrypt,
- .init = cryp_init_tfm,
- }
- },
- {
- .algomode = CRYP_ALGO_AES_CBC,
- .skcipher = {
- .base.cra_name = "cbc(aes)",
- .base.cra_driver_name = "cbc-aes-ux500",
- .base.cra_priority = 300,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
- .base.cra_blocksize = AES_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct cryp_ctx),
- .base.cra_alignmask = 3,
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .setkey = aes_skcipher_setkey,
- .encrypt = cryp_blk_encrypt,
- .decrypt = cryp_blk_decrypt,
- .init = cryp_init_tfm,
- .ivsize = AES_BLOCK_SIZE,
- }
- },
- {
- .algomode = CRYP_ALGO_AES_CTR,
- .skcipher = {
- .base.cra_name = "ctr(aes)",
- .base.cra_driver_name = "ctr-aes-ux500",
- .base.cra_priority = 300,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
- .base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct cryp_ctx),
- .base.cra_alignmask = 3,
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .setkey = aes_skcipher_setkey,
- .encrypt = cryp_blk_encrypt,
- .decrypt = cryp_blk_decrypt,
- .init = cryp_init_tfm,
- .ivsize = AES_BLOCK_SIZE,
- .chunksize = AES_BLOCK_SIZE,
- }
- },
- {
- .algomode = CRYP_ALGO_DES_ECB,
- .skcipher = {
- .base.cra_name = "ecb(des)",
- .base.cra_driver_name = "ecb-des-ux500",
- .base.cra_priority = 300,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
- .base.cra_blocksize = DES_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct cryp_ctx),
- .base.cra_alignmask = 3,
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = DES_KEY_SIZE,
- .max_keysize = DES_KEY_SIZE,
- .setkey = des_skcipher_setkey,
- .encrypt = cryp_blk_encrypt,
- .decrypt = cryp_blk_decrypt,
- .init = cryp_init_tfm,
- }
- },
- {
- .algomode = CRYP_ALGO_TDES_ECB,
- .skcipher = {
- .base.cra_name = "ecb(des3_ede)",
- .base.cra_driver_name = "ecb-des3_ede-ux500",
- .base.cra_priority = 300,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
- .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct cryp_ctx),
- .base.cra_alignmask = 3,
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = DES3_EDE_KEY_SIZE,
- .max_keysize = DES3_EDE_KEY_SIZE,
- .setkey = des3_skcipher_setkey,
- .encrypt = cryp_blk_encrypt,
- .decrypt = cryp_blk_decrypt,
- .init = cryp_init_tfm,
- }
- },
- {
- .algomode = CRYP_ALGO_DES_CBC,
- .skcipher = {
- .base.cra_name = "cbc(des)",
- .base.cra_driver_name = "cbc-des-ux500",
- .base.cra_priority = 300,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
- .base.cra_blocksize = DES_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct cryp_ctx),
- .base.cra_alignmask = 3,
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = DES_KEY_SIZE,
- .max_keysize = DES_KEY_SIZE,
- .setkey = des_skcipher_setkey,
- .encrypt = cryp_blk_encrypt,
- .decrypt = cryp_blk_decrypt,
- .ivsize = DES_BLOCK_SIZE,
- .init = cryp_init_tfm,
- }
- },
- {
- .algomode = CRYP_ALGO_TDES_CBC,
- .skcipher = {
- .base.cra_name = "cbc(des3_ede)",
- .base.cra_driver_name = "cbc-des3_ede-ux500",
- .base.cra_priority = 300,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
- .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct cryp_ctx),
- .base.cra_alignmask = 3,
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = DES3_EDE_KEY_SIZE,
- .max_keysize = DES3_EDE_KEY_SIZE,
- .setkey = des3_skcipher_setkey,
- .encrypt = cryp_blk_encrypt,
- .decrypt = cryp_blk_decrypt,
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .init = cryp_init_tfm,
- }
- }
-};
-
-/**
- * cryp_algs_register_all -
- */
-static int cryp_algs_register_all(void)
-{
- int ret;
- int i;
- int count;
-
- pr_debug("[%s]", __func__);
-
- for (i = 0; i < ARRAY_SIZE(cryp_algs); i++) {
- ret = crypto_register_skcipher(&cryp_algs[i].skcipher);
- if (ret) {
- count = i;
- pr_err("[%s] alg registration failed",
- cryp_algs[i].skcipher.base.cra_driver_name);
- goto unreg;
- }
- }
- return 0;
-unreg:
- for (i = 0; i < count; i++)
- crypto_unregister_skcipher(&cryp_algs[i].skcipher);
- return ret;
-}
-
-/**
- * cryp_algs_unregister_all -
- */
-static void cryp_algs_unregister_all(void)
-{
- int i;
-
- pr_debug(DEV_DBG_NAME " [%s]", __func__);
-
- for (i = 0; i < ARRAY_SIZE(cryp_algs); i++)
- crypto_unregister_skcipher(&cryp_algs[i].skcipher);
-}
-
-static int ux500_cryp_probe(struct platform_device *pdev)
-{
- int ret;
- struct resource *res;
- struct cryp_device_data *device_data;
- struct cryp_protection_config prot = {
- .privilege_access = CRYP_STATE_ENABLE
- };
- struct device *dev = &pdev->dev;
-
- dev_dbg(dev, "[%s]", __func__);
- device_data = devm_kzalloc(dev, sizeof(*device_data), GFP_KERNEL);
- if (!device_data) {
- ret = -ENOMEM;
- goto out;
- }
-
- device_data->dev = dev;
- device_data->current_ctx = NULL;
-
- /* Grab the DMA configuration from platform data. */
- mem_to_engine = &((struct cryp_platform_data *)
- dev->platform_data)->mem_to_engine;
- engine_to_mem = &((struct cryp_platform_data *)
- dev->platform_data)->engine_to_mem;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "[%s]: platform_get_resource() failed",
- __func__);
- ret = -ENODEV;
- goto out;
- }
-
- device_data->phybase = res->start;
- device_data->base = devm_ioremap_resource(dev, res);
- if (IS_ERR(device_data->base)) {
- ret = PTR_ERR(device_data->base);
- goto out;
- }
-
- spin_lock_init(&device_data->ctx_lock);
- spin_lock_init(&device_data->power_state_spinlock);
-
- /* Enable power for CRYP hardware block */
- device_data->pwr_regulator = regulator_get(&pdev->dev, "v-ape");
- if (IS_ERR(device_data->pwr_regulator)) {
- dev_err(dev, "[%s]: could not get cryp regulator", __func__);
- ret = PTR_ERR(device_data->pwr_regulator);
- device_data->pwr_regulator = NULL;
- goto out;
- }
-
- /* Enable the clk for CRYP hardware block */
- device_data->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(device_data->clk)) {
- dev_err(dev, "[%s]: clk_get() failed!", __func__);
- ret = PTR_ERR(device_data->clk);
- goto out_regulator;
- }
-
- ret = clk_prepare(device_data->clk);
- if (ret) {
- dev_err(dev, "[%s]: clk_prepare() failed!", __func__);
- goto out_regulator;
- }
-
- /* Enable device power (and clock) */
- ret = cryp_enable_power(device_data->dev, device_data, false);
- if (ret) {
- dev_err(dev, "[%s]: cryp_enable_power() failed!", __func__);
- goto out_clk_unprepare;
- }
-
- if (cryp_check(device_data)) {
- dev_err(dev, "[%s]: cryp_check() failed!", __func__);
- ret = -EINVAL;
- goto out_power;
- }
-
- if (cryp_configure_protection(device_data, &prot)) {
- dev_err(dev, "[%s]: cryp_configure_protection() failed!",
- __func__);
- ret = -EINVAL;
- goto out_power;
- }
-
- device_data->irq = platform_get_irq(pdev, 0);
- if (device_data->irq <= 0) {
- ret = device_data->irq ? device_data->irq : -ENXIO;
- goto out_power;
- }
-
- ret = devm_request_irq(&pdev->dev, device_data->irq,
- cryp_interrupt_handler, 0, "cryp1", device_data);
- if (ret) {
- dev_err(dev, "[%s]: Unable to request IRQ", __func__);
- goto out_power;
- }
-
- if (cryp_mode == CRYP_MODE_DMA)
- cryp_dma_setup_channel(device_data, dev);
-
- platform_set_drvdata(pdev, device_data);
-
- /* Put the new device into the device list... */
- klist_add_tail(&device_data->list_node, &driver_data.device_list);
-
- /* ... and signal that a new device is available. */
- up(&driver_data.device_allocation);
-
- atomic_set(&session_id, 1);
-
- ret = cryp_algs_register_all();
- if (ret) {
- dev_err(dev, "[%s]: cryp_algs_register_all() failed!",
- __func__);
- goto out_power;
- }
-
- dev_info(dev, "successfully registered\n");
-
- return 0;
-
-out_power:
- cryp_disable_power(device_data->dev, device_data, false);
-
-out_clk_unprepare:
- clk_unprepare(device_data->clk);
-
-out_regulator:
- regulator_put(device_data->pwr_regulator);
-
-out:
- return ret;
-}
-
-static int ux500_cryp_remove(struct platform_device *pdev)
-{
- struct cryp_device_data *device_data;
-
- dev_dbg(&pdev->dev, "[%s]", __func__);
- device_data = platform_get_drvdata(pdev);
- if (!device_data) {
- dev_err(&pdev->dev, "[%s]: platform_get_drvdata() failed!",
- __func__);
- return -ENOMEM;
- }
-
- /* Try to decrease the number of available devices. */
- if (down_trylock(&driver_data.device_allocation))
- return -EBUSY;
-
- /* Check that the device is free */
- spin_lock(&device_data->ctx_lock);
- /* current_ctx allocates a device, NULL = unallocated */
- if (device_data->current_ctx) {
- /* The device is busy */
- spin_unlock(&device_data->ctx_lock);
- /* Return the device to the pool. */
- up(&driver_data.device_allocation);
- return -EBUSY;
- }
-
- spin_unlock(&device_data->ctx_lock);
-
- /* Remove the device from the list */
- if (klist_node_attached(&device_data->list_node))
- klist_remove(&device_data->list_node);
-
- /* If this was the last device, remove the services */
- if (list_empty(&driver_data.device_list.k_list))
- cryp_algs_unregister_all();
-
- if (cryp_disable_power(&pdev->dev, device_data, false))
- dev_err(&pdev->dev, "[%s]: cryp_disable_power() failed",
- __func__);
-
- clk_unprepare(device_data->clk);
- regulator_put(device_data->pwr_regulator);
-
- return 0;
-}
-
-static void ux500_cryp_shutdown(struct platform_device *pdev)
-{
- struct cryp_device_data *device_data;
-
- dev_dbg(&pdev->dev, "[%s]", __func__);
-
- device_data = platform_get_drvdata(pdev);
- if (!device_data) {
- dev_err(&pdev->dev, "[%s]: platform_get_drvdata() failed!",
- __func__);
- return;
- }
-
- /* Check that the device is free */
- spin_lock(&device_data->ctx_lock);
- /* current_ctx allocates a device, NULL = unallocated */
- if (!device_data->current_ctx) {
- if (down_trylock(&driver_data.device_allocation))
- dev_dbg(&pdev->dev, "[%s]: Cryp still in use!"
- "Shutting down anyway...", __func__);
- /**
- * (Allocate the device)
- * Need to set this to non-null (dummy) value,
- * to avoid usage if context switching.
- */
- device_data->current_ctx++;
- }
- spin_unlock(&device_data->ctx_lock);
-
- /* Remove the device from the list */
- if (klist_node_attached(&device_data->list_node))
- klist_remove(&device_data->list_node);
-
- /* If this was the last device, remove the services */
- if (list_empty(&driver_data.device_list.k_list))
- cryp_algs_unregister_all();
-
- if (cryp_disable_power(&pdev->dev, device_data, false))
- dev_err(&pdev->dev, "[%s]: cryp_disable_power() failed",
- __func__);
-
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int ux500_cryp_suspend(struct device *dev)
-{
- int ret;
- struct platform_device *pdev = to_platform_device(dev);
- struct cryp_device_data *device_data;
- struct cryp_ctx *temp_ctx = NULL;
-
- dev_dbg(dev, "[%s]", __func__);
-
- /* Handle state? */
- device_data = platform_get_drvdata(pdev);
- if (!device_data) {
- dev_err(dev, "[%s]: platform_get_drvdata() failed!", __func__);
- return -ENOMEM;
- }
-
- disable_irq(device_data->irq);
-
- spin_lock(&device_data->ctx_lock);
- if (!device_data->current_ctx)
- device_data->current_ctx++;
- spin_unlock(&device_data->ctx_lock);
-
- if (device_data->current_ctx == ++temp_ctx) {
- if (down_interruptible(&driver_data.device_allocation))
- dev_dbg(dev, "[%s]: down_interruptible() failed",
- __func__);
- ret = cryp_disable_power(dev, device_data, false);
-
- } else
- ret = cryp_disable_power(dev, device_data, true);
-
- if (ret)
- dev_err(dev, "[%s]: cryp_disable_power()", __func__);
-
- return ret;
-}
-
-static int ux500_cryp_resume(struct device *dev)
-{
- int ret = 0;
- struct platform_device *pdev = to_platform_device(dev);
- struct cryp_device_data *device_data;
- struct cryp_ctx *temp_ctx = NULL;
-
- dev_dbg(dev, "[%s]", __func__);
-
- device_data = platform_get_drvdata(pdev);
- if (!device_data) {
- dev_err(dev, "[%s]: platform_get_drvdata() failed!", __func__);
- return -ENOMEM;
- }
-
- spin_lock(&device_data->ctx_lock);
- if (device_data->current_ctx == ++temp_ctx)
- device_data->current_ctx = NULL;
- spin_unlock(&device_data->ctx_lock);
-
-
- if (!device_data->current_ctx)
- up(&driver_data.device_allocation);
- else
- ret = cryp_enable_power(dev, device_data, true);
-
- if (ret)
- dev_err(dev, "[%s]: cryp_enable_power() failed!", __func__);
- else
- enable_irq(device_data->irq);
-
- return ret;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(ux500_cryp_pm, ux500_cryp_suspend, ux500_cryp_resume);
-
-static const struct of_device_id ux500_cryp_match[] = {
- { .compatible = "stericsson,ux500-cryp" },
- { },
-};
-MODULE_DEVICE_TABLE(of, ux500_cryp_match);
-
-static struct platform_driver cryp_driver = {
- .probe = ux500_cryp_probe,
- .remove = ux500_cryp_remove,
- .shutdown = ux500_cryp_shutdown,
- .driver = {
- .name = "cryp1",
- .of_match_table = ux500_cryp_match,
- .pm = &ux500_cryp_pm,
- }
-};
-
-static int __init ux500_cryp_mod_init(void)
-{
- pr_debug("[%s] is called!", __func__);
- klist_init(&driver_data.device_list, NULL, NULL);
- /* Initialize the semaphore to 0 devices (locked state) */
- sema_init(&driver_data.device_allocation, 0);
- return platform_driver_register(&cryp_driver);
-}
-
-static void __exit ux500_cryp_mod_fini(void)
-{
- pr_debug("[%s] is called!", __func__);
- platform_driver_unregister(&cryp_driver);
-}
-
-module_init(ux500_cryp_mod_init);
-module_exit(ux500_cryp_mod_fini);
-
-module_param(cryp_mode, int, 0);
-
-MODULE_DESCRIPTION("Driver for ST-Ericsson UX500 CRYP crypto engine.");
-MODULE_ALIAS_CRYPTO("aes-all");
-MODULE_ALIAS_CRYPTO("des-all");
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/crypto/ux500/cryp/cryp_irq.c b/drivers/crypto/ux500/cryp/cryp_irq.c
deleted file mode 100644
index 6d2f07bec98a7e74beba3c0297de40fa11538094..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/cryp_irq.c
+++ /dev/null
@@ -1,45 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
- * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
- * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
- * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
- * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
- */
-
-#include <linux/kernel.h>
-#include <linux/bitmap.h>
-#include <linux/device.h>
-
-#include "cryp.h"
-#include "cryp_p.h"
-#include "cryp_irq.h"
-#include "cryp_irqp.h"
-
-void cryp_enable_irq_src(struct cryp_device_data *device_data, u32 irq_src)
-{
- u32 i;
-
- dev_dbg(device_data->dev, "[%s]", __func__);
-
- i = readl_relaxed(&device_data->base->imsc);
- i = i | irq_src;
- writel_relaxed(i, &device_data->base->imsc);
-}
-
-void cryp_disable_irq_src(struct cryp_device_data *device_data, u32 irq_src)
-{
- u32 i;
-
- dev_dbg(device_data->dev, "[%s]", __func__);
-
- i = readl_relaxed(&device_data->base->imsc);
- i = i & ~irq_src;
- writel_relaxed(i, &device_data->base->imsc);
-}
-
-bool cryp_pending_irq_src(struct cryp_device_data *device_data, u32 irq_src)
-{
- return (readl_relaxed(&device_data->base->mis) & irq_src) > 0;
-}
diff --git a/drivers/crypto/ux500/cryp/cryp_irq.h b/drivers/crypto/ux500/cryp/cryp_irq.h
deleted file mode 100644
index da90029ea141240bb5c57d98eb31c28043036c13..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/cryp_irq.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
- * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
- * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
- * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
- * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
- */
-
-#ifndef _CRYP_IRQ_H_
-#define _CRYP_IRQ_H_
-
-#include "cryp.h"
-
-enum cryp_irq_src_id {
- CRYP_IRQ_SRC_INPUT_FIFO = 0x1,
- CRYP_IRQ_SRC_OUTPUT_FIFO = 0x2,
- CRYP_IRQ_SRC_ALL = 0x3
-};
-
-/*
- * M0 Funtions
- */
-void cryp_enable_irq_src(struct cryp_device_data *device_data, u32 irq_src);
-
-void cryp_disable_irq_src(struct cryp_device_data *device_data, u32 irq_src);
-
-bool cryp_pending_irq_src(struct cryp_device_data *device_data, u32 irq_src);
-
-#endif /* _CRYP_IRQ_H_ */
diff --git a/drivers/crypto/ux500/cryp/cryp_irqp.h b/drivers/crypto/ux500/cryp/cryp_irqp.h
deleted file mode 100644
index 4981a3f461e5ed6f8bc0e1c378749ce5a857a956..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/cryp_irqp.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
- * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
- * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
- * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
- * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
- */
-
-#ifndef __CRYP_IRQP_H_
-#define __CRYP_IRQP_H_
-
-#include "cryp_irq.h"
-
-/*
- *
- * CRYP Registers - Offset mapping
- * +-----------------+
- * 00h | CRYP_CR | Configuration register
- * +-----------------+
- * 04h | CRYP_SR | Status register
- * +-----------------+
- * 08h | CRYP_DIN | Data In register
- * +-----------------+
- * 0ch | CRYP_DOUT | Data out register
- * +-----------------+
- * 10h | CRYP_DMACR | DMA control register
- * +-----------------+
- * 14h | CRYP_IMSC | IMSC
- * +-----------------+
- * 18h | CRYP_RIS | Raw interrupt status
- * +-----------------+
- * 1ch | CRYP_MIS | Masked interrupt status.
- * +-----------------+
- * Key registers
- * IVR registers
- * Peripheral
- * Cell IDs
- *
- * Refer data structure for other register map
- */
-
-/**
- * struct cryp_register
- * @cr - Configuration register
- * @status - Status register
- * @din - Data input register
- * @din_size - Data input size register
- * @dout - Data output register
- * @dout_size - Data output size register
- * @dmacr - Dma control register
- * @imsc - Interrupt mask set/clear register
- * @ris - Raw interrupt status
- * @mis - Masked interrupt statu register
- * @key_1_l - Key register 1 L
- * @key_1_r - Key register 1 R
- * @key_2_l - Key register 2 L
- * @key_2_r - Key register 2 R
- * @key_3_l - Key register 3 L
- * @key_3_r - Key register 3 R
- * @key_4_l - Key register 4 L
- * @key_4_r - Key register 4 R
- * @init_vect_0_l - init vector 0 L
- * @init_vect_0_r - init vector 0 R
- * @init_vect_1_l - init vector 1 L
- * @init_vect_1_r - init vector 1 R
- * @cryp_unused1 - unused registers
- * @itcr - Integration test control register
- * @itip - Integration test input register
- * @itop - Integration test output register
- * @cryp_unused2 - unused registers
- * @periphId0 - FE0 CRYP Peripheral Identication Register
- * @periphId1 - FE4
- * @periphId2 - FE8
- * @periphId3 - FEC
- * @pcellId0 - FF0 CRYP PCell Identication Register
- * @pcellId1 - FF4
- * @pcellId2 - FF8
- * @pcellId3 - FFC
- */
-struct cryp_register {
- u32 cr; /* Configuration register */
- u32 sr; /* Status register */
- u32 din; /* Data input register */
- u32 din_size; /* Data input size register */
- u32 dout; /* Data output register */
- u32 dout_size; /* Data output size register */
- u32 dmacr; /* Dma control register */
- u32 imsc; /* Interrupt mask set/clear register */
- u32 ris; /* Raw interrupt status */
- u32 mis; /* Masked interrupt statu register */
-
- u32 key_1_l; /*Key register 1 L */
- u32 key_1_r; /*Key register 1 R */
- u32 key_2_l; /*Key register 2 L */
- u32 key_2_r; /*Key register 2 R */
- u32 key_3_l; /*Key register 3 L */
- u32 key_3_r; /*Key register 3 R */
- u32 key_4_l; /*Key register 4 L */
- u32 key_4_r; /*Key register 4 R */
-
- u32 init_vect_0_l; /*init vector 0 L */
- u32 init_vect_0_r; /*init vector 0 R */
- u32 init_vect_1_l; /*init vector 1 L */
- u32 init_vect_1_r; /*init vector 1 R */
-
- u32 cryp_unused1[(0x80 - 0x58) / sizeof(u32)]; /* unused registers */
- u32 itcr; /*Integration test control register */
- u32 itip; /*Integration test input register */
- u32 itop; /*Integration test output register */
- u32 cryp_unused2[(0xFE0 - 0x8C) / sizeof(u32)]; /* unused registers */
-
- u32 periphId0; /* FE0 CRYP Peripheral Identication Register */
- u32 periphId1; /* FE4 */
- u32 periphId2; /* FE8 */
- u32 periphId3; /* FEC */
-
- u32 pcellId0; /* FF0 CRYP PCell Identication Register */
- u32 pcellId1; /* FF4 */
- u32 pcellId2; /* FF8 */
- u32 pcellId3; /* FFC */
-};
-
-#endif
diff --git a/drivers/crypto/ux500/cryp/cryp_p.h b/drivers/crypto/ux500/cryp/cryp_p.h
deleted file mode 100644
index 60b47fe4de35d9b29c3ed2a0e902254f6de1bd38..0000000000000000000000000000000000000000
--- a/drivers/crypto/ux500/cryp/cryp_p.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
- * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
- * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
- * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
- * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
- */
-
-#ifndef _CRYP_P_H_
-#define _CRYP_P_H_
-
-#include <linux/io.h>
-#include <linux/bitops.h>
-
-#include "cryp.h"
-#include "cryp_irqp.h"
-
-/*
- * Generic Macros
- */
-#define CRYP_SET_BITS(reg_name, mask) \
- writel_relaxed((readl_relaxed(reg_name) | mask), reg_name)
-
-#define CRYP_WRITE_BIT(reg_name, val, mask) \
- writel_relaxed(((readl_relaxed(reg_name) & ~(mask)) |\
- ((val) & (mask))), reg_name)
-
-#define CRYP_TEST_BITS(reg_name, val) \
- (readl_relaxed(reg_name) & (val))
-
-#define CRYP_PUT_BITS(reg, val, shift, mask) \
- writel_relaxed(((readl_relaxed(reg) & ~(mask)) | \
- (((u32)val << shift) & (mask))), reg)
-
-/*
- * CRYP specific Macros
- */
-#define CRYP_PERIPHERAL_ID0 0xE3
-#define CRYP_PERIPHERAL_ID1 0x05
-
-#define CRYP_PERIPHERAL_ID2_DB8500 0x28
-#define CRYP_PERIPHERAL_ID3 0x00
-
-#define CRYP_PCELL_ID0 0x0D
-#define CRYP_PCELL_ID1 0xF0
-#define CRYP_PCELL_ID2 0x05
-#define CRYP_PCELL_ID3 0xB1
-
-/*
- * CRYP register default values
- */
-#define MAX_DEVICE_SUPPORT 2
-
-/* Priv set, keyrden set and datatype 8bits swapped set as default. */
-#define CRYP_CR_DEFAULT 0x0482
-#define CRYP_DMACR_DEFAULT 0x0
-#define CRYP_IMSC_DEFAULT 0x0
-#define CRYP_DIN_DEFAULT 0x0
-#define CRYP_DOUT_DEFAULT 0x0
-#define CRYP_KEY_DEFAULT 0x0
-#define CRYP_INIT_VECT_DEFAULT 0x0
-
-/*
- * CRYP Control register specific mask
- */
-#define CRYP_CR_SECURE_MASK BIT(0)
-#define CRYP_CR_PRLG_MASK BIT(1)
-#define CRYP_CR_ALGODIR_MASK BIT(2)
-#define CRYP_CR_ALGOMODE_MASK (BIT(5) | BIT(4) | BIT(3))
-#define CRYP_CR_DATATYPE_MASK (BIT(7) | BIT(6))
-#define CRYP_CR_KEYSIZE_MASK (BIT(9) | BIT(8))
-#define CRYP_CR_KEYRDEN_MASK BIT(10)
-#define CRYP_CR_KSE_MASK BIT(11)
-#define CRYP_CR_START_MASK BIT(12)
-#define CRYP_CR_INIT_MASK BIT(13)
-#define CRYP_CR_FFLUSH_MASK BIT(14)
-#define CRYP_CR_CRYPEN_MASK BIT(15)
-#define CRYP_CR_CONTEXT_SAVE_MASK (CRYP_CR_SECURE_MASK |\
- CRYP_CR_PRLG_MASK |\
- CRYP_CR_ALGODIR_MASK |\
- CRYP_CR_ALGOMODE_MASK |\
- CRYP_CR_KEYSIZE_MASK |\
- CRYP_CR_KEYRDEN_MASK |\
- CRYP_CR_DATATYPE_MASK)
-
-
-#define CRYP_SR_INFIFO_READY_MASK (BIT(0) | BIT(1))
-#define CRYP_SR_IFEM_MASK BIT(0)
-#define CRYP_SR_BUSY_MASK BIT(4)
-
-/*
- * Bit position used while setting bits in register
- */
-#define CRYP_CR_PRLG_POS 1
-#define CRYP_CR_ALGODIR_POS 2
-#define CRYP_CR_ALGOMODE_POS 3
-#define CRYP_CR_DATATYPE_POS 6
-#define CRYP_CR_KEYSIZE_POS 8
-#define CRYP_CR_KEYRDEN_POS 10
-#define CRYP_CR_KSE_POS 11
-#define CRYP_CR_START_POS 12
-#define CRYP_CR_INIT_POS 13
-#define CRYP_CR_CRYPEN_POS 15
-
-#define CRYP_SR_BUSY_POS 4
-
-/*
- * CRYP PCRs------PC_NAND control register
- * BIT_MASK
- */
-#define CRYP_DMA_REQ_MASK (BIT(1) | BIT(0))
-#define CRYP_DMA_REQ_MASK_POS 0
-
-
-struct cryp_system_context {
- /* CRYP Register structure */
- struct cryp_register *p_cryp_reg[MAX_DEVICE_SUPPORT];
-};
-
-#endif