zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/crypto/caam/ctrl.c b/ap/os/linux/linux-3.4.x/drivers/crypto/caam/ctrl.c
new file mode 100644
index 0000000..c5f61c5
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/crypto/caam/ctrl.c
@@ -0,0 +1,247 @@
+/*
+ * CAAM control-plane driver backend
+ * Controller-level driver, kernel property detection, initialization
+ *
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ */
+
+#include "compat.h"
+#include "regs.h"
+#include "intern.h"
+#include "jr.h"
+
+static int caam_remove(struct platform_device *pdev)
+{
+ struct device *ctrldev;
+ struct caam_drv_private *ctrlpriv;
+ struct caam_drv_private_jr *jrpriv;
+ struct caam_full __iomem *topregs;
+ int ring, ret = 0;
+
+ ctrldev = &pdev->dev;
+ ctrlpriv = dev_get_drvdata(ctrldev);
+ topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
+
+ /* shut down JobRs */
+ for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) {
+ ret |= caam_jr_shutdown(ctrlpriv->jrdev[ring]);
+ jrpriv = dev_get_drvdata(ctrlpriv->jrdev[ring]);
+ irq_dispose_mapping(jrpriv->irq);
+ }
+
+ /* Shut down debug views */
+#ifdef CONFIG_DEBUG_FS
+ debugfs_remove_recursive(ctrlpriv->dfs_root);
+#endif
+
+ /* Unmap controller region */
+ iounmap(&topregs->ctrl);
+
+ kfree(ctrlpriv->jrdev);
+ kfree(ctrlpriv);
+
+ return ret;
+}
+
+/* Probe routine for CAAM top (controller) level */
+static int caam_probe(struct platform_device *pdev)
+{
+ int ring, rspec;
+ struct device *dev;
+ struct device_node *nprop, *np;
+ struct caam_ctrl __iomem *ctrl;
+ struct caam_full __iomem *topregs;
+ struct caam_drv_private *ctrlpriv;
+#ifdef CONFIG_DEBUG_FS
+ struct caam_perfmon *perfmon;
+#endif
+
+ ctrlpriv = kzalloc(sizeof(struct caam_drv_private), GFP_KERNEL);
+ if (!ctrlpriv)
+ return -ENOMEM;
+
+ dev = &pdev->dev;
+ dev_set_drvdata(dev, ctrlpriv);
+ ctrlpriv->pdev = pdev;
+ nprop = pdev->dev.of_node;
+
+ /* Get configuration properties from device tree */
+ /* First, get register page */
+ ctrl = of_iomap(nprop, 0);
+ if (ctrl == NULL) {
+ dev_err(dev, "caam: of_iomap() failed\n");
+ return -ENOMEM;
+ }
+ ctrlpriv->ctrl = (struct caam_ctrl __force *)ctrl;
+
+ /* topregs used to derive pointers to CAAM sub-blocks only */
+ topregs = (struct caam_full __iomem *)ctrl;
+
+ /* Get the IRQ of the controller (for security violations only) */
+ ctrlpriv->secvio_irq = of_irq_to_resource(nprop, 0, NULL);
+
+ /*
+ * Enable DECO watchdogs and, if this is a PHYS_ADDR_T_64BIT kernel,
+ * 36-bit pointers in master configuration register
+ */
+ setbits32(&topregs->ctrl.mcr, MCFGR_WDENABLE |
+ (sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0));
+
+ if (sizeof(dma_addr_t) == sizeof(u64))
+ dma_set_mask(dev, DMA_BIT_MASK(36));
+
+ /*
+ * Detect and enable JobRs
+ * First, find out how many ring spec'ed, allocate references
+ * for all, then go probe each one.
+ */
+ rspec = 0;
+ for_each_compatible_node(np, NULL, "fsl,sec-v4.0-job-ring")
+ rspec++;
+ ctrlpriv->jrdev = kzalloc(sizeof(struct device *) * rspec, GFP_KERNEL);
+ if (ctrlpriv->jrdev == NULL) {
+ iounmap(&topregs->ctrl);
+ return -ENOMEM;
+ }
+
+ ring = 0;
+ ctrlpriv->total_jobrs = 0;
+ for_each_compatible_node(np, NULL, "fsl,sec-v4.0-job-ring") {
+ caam_jr_probe(pdev, np, ring);
+ ctrlpriv->total_jobrs++;
+ ring++;
+ }
+
+ /* Check to see if QI present. If so, enable */
+ ctrlpriv->qi_present = !!(rd_reg64(&topregs->ctrl.perfmon.comp_parms) &
+ CTPR_QI_MASK);
+ if (ctrlpriv->qi_present) {
+ ctrlpriv->qi = (struct caam_queue_if __force *)&topregs->qi;
+ /* This is all that's required to physically enable QI */
+ wr_reg32(&topregs->qi.qi_control_lo, QICTL_DQEN);
+ }
+
+ /* If no QI and no rings specified, quit and go home */
+ if ((!ctrlpriv->qi_present) && (!ctrlpriv->total_jobrs)) {
+ dev_err(dev, "no queues configured, terminating\n");
+ caam_remove(pdev);
+ return -ENOMEM;
+ }
+
+ /* NOTE: RTIC detection ought to go here, around Si time */
+
+ /* Initialize queue allocator lock */
+ spin_lock_init(&ctrlpriv->jr_alloc_lock);
+
+ /* Report "alive" for developer to see */
+ dev_info(dev, "device ID = 0x%016llx\n",
+ rd_reg64(&topregs->ctrl.perfmon.caam_id));
+ dev_info(dev, "job rings = %d, qi = %d\n",
+ ctrlpriv->total_jobrs, ctrlpriv->qi_present);
+
+#ifdef CONFIG_DEBUG_FS
+ /*
+ * FIXME: needs better naming distinction, as some amalgamation of
+ * "caam" and nprop->full_name. The OF name isn't distinctive,
+ * but does separate instances
+ */
+ perfmon = (struct caam_perfmon __force *)&ctrl->perfmon;
+
+ ctrlpriv->dfs_root = debugfs_create_dir("caam", NULL);
+ ctrlpriv->ctl = debugfs_create_dir("ctl", ctrlpriv->dfs_root);
+
+ /* Controller-level - performance monitor counters */
+ ctrlpriv->ctl_rq_dequeued =
+ debugfs_create_u64("rq_dequeued",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->req_dequeued);
+ ctrlpriv->ctl_ob_enc_req =
+ debugfs_create_u64("ob_rq_encrypted",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->ob_enc_req);
+ ctrlpriv->ctl_ib_dec_req =
+ debugfs_create_u64("ib_rq_decrypted",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->ib_dec_req);
+ ctrlpriv->ctl_ob_enc_bytes =
+ debugfs_create_u64("ob_bytes_encrypted",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->ob_enc_bytes);
+ ctrlpriv->ctl_ob_prot_bytes =
+ debugfs_create_u64("ob_bytes_protected",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->ob_prot_bytes);
+ ctrlpriv->ctl_ib_dec_bytes =
+ debugfs_create_u64("ib_bytes_decrypted",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->ib_dec_bytes);
+ ctrlpriv->ctl_ib_valid_bytes =
+ debugfs_create_u64("ib_bytes_validated",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->ib_valid_bytes);
+
+ /* Controller level - global status values */
+ ctrlpriv->ctl_faultaddr =
+ debugfs_create_u64("fault_addr",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->faultaddr);
+ ctrlpriv->ctl_faultdetail =
+ debugfs_create_u32("fault_detail",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->faultdetail);
+ ctrlpriv->ctl_faultstatus =
+ debugfs_create_u32("fault_status",
+ S_IRUSR | S_IRGRP | S_IROTH,
+ ctrlpriv->ctl, &perfmon->status);
+
+ /* Internal covering keys (useful in non-secure mode only) */
+ ctrlpriv->ctl_kek_wrap.data = &ctrlpriv->ctrl->kek[0];
+ ctrlpriv->ctl_kek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
+ ctrlpriv->ctl_kek = debugfs_create_blob("kek",
+ S_IRUSR |
+ S_IRGRP | S_IROTH,
+ ctrlpriv->ctl,
+ &ctrlpriv->ctl_kek_wrap);
+
+ ctrlpriv->ctl_tkek_wrap.data = &ctrlpriv->ctrl->tkek[0];
+ ctrlpriv->ctl_tkek_wrap.size = KEK_KEY_SIZE * sizeof(u32);
+ ctrlpriv->ctl_tkek = debugfs_create_blob("tkek",
+ S_IRUSR |
+ S_IRGRP | S_IROTH,
+ ctrlpriv->ctl,
+ &ctrlpriv->ctl_tkek_wrap);
+
+ ctrlpriv->ctl_tdsk_wrap.data = &ctrlpriv->ctrl->tdsk[0];
+ ctrlpriv->ctl_tdsk_wrap.size = KEK_KEY_SIZE * sizeof(u32);
+ ctrlpriv->ctl_tdsk = debugfs_create_blob("tdsk",
+ S_IRUSR |
+ S_IRGRP | S_IROTH,
+ ctrlpriv->ctl,
+ &ctrlpriv->ctl_tdsk_wrap);
+#endif
+ return 0;
+}
+
+static struct of_device_id caam_match[] = {
+ {
+ .compatible = "fsl,sec-v4.0",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, caam_match);
+
+static struct platform_driver caam_driver = {
+ .driver = {
+ .name = "caam",
+ .owner = THIS_MODULE,
+ .of_match_table = caam_match,
+ },
+ .probe = caam_probe,
+ .remove = __devexit_p(caam_remove),
+};
+
+module_platform_driver(caam_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("FSL CAAM request backend");
+MODULE_AUTHOR("Freescale Semiconductor - NMG/STC");