Tegra186: platform support for Tegra "T186" SoC
Tegra186 is the newest SoC in the Tegra family which consists
of two CPU clusters - Denver and A57. The Denver cluster hosts
two next gen Denver15 CPUs while the A57 cluster hosts four ARM
Cortex-A57 CPUs. Unlike previous Tegra generations, all the six
cores on this SoC would be available to the system at the same
time and individual clusters can be powered down to conserve
power.
Change-Id: Id0c9919dbf5186d2938603e0b11e821b5892985e
Signed-off-by: Wayne Lin <wlin@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/plat/nvidia/tegra/soc/t186/plat_sip_calls.c b/plat/nvidia/tegra/soc/t186/plat_sip_calls.c
new file mode 100644
index 0000000..496edf3
--- /dev/null
+++ b/plat/nvidia/tegra/soc/t186/plat_sip_calls.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <assert.h>
+#include <bl_common.h>
+#include <context_mgmt.h>
+#include <debug.h>
+#include <errno.h>
+#include <memctrl.h>
+#include <runtime_svc.h>
+#include <tegra_private.h>
+
+/*******************************************************************************
+ * Tegra186 SiP SMCs
+ ******************************************************************************/
+#define TEGRA_SIP_NEW_VIDEOMEM_REGION 0x82000003
+
+/*******************************************************************************
+ * This function is responsible for handling all SiP calls from the NS world
+ ******************************************************************************/
+uint64_t tegra186_sip_handler(uint32_t smc_fid,
+ uint64_t x1,
+ uint64_t x2,
+ uint64_t x3,
+ uint64_t x4,
+ void *cookie,
+ void *handle,
+ uint64_t flags)
+{
+ uint32_t ns;
+ int err;
+
+ /* Determine which security state this SMC originated from */
+ ns = is_caller_non_secure(flags);
+ if (!ns)
+ SMC_RET1(handle, SMC_UNK);
+
+ switch (smc_fid) {
+
+ case TEGRA_SIP_NEW_VIDEOMEM_REGION:
+
+ /* clean up the high bits */
+ x1 = (uint32_t)x1;
+ x2 = (uint32_t)x2;
+
+ /*
+ * Check if Video Memory overlaps TZDRAM (contains bl31/bl32)
+ * or falls outside of the valid DRAM range
+ */
+ err = bl31_check_ns_address(x1, x2);
+ if (err)
+ SMC_RET1(handle, err);
+
+ /*
+ * Check if Video Memory is aligned to 1MB.
+ */
+ if ((x1 & 0xFFFFF) || (x2 & 0xFFFFF)) {
+ ERROR("Unaligned Video Memory base address!\n");
+ SMC_RET1(handle, -ENOTSUP);
+ }
+
+ /* new video memory carveout settings */
+ tegra_memctrl_videomem_setup(x1, x2);
+
+ SMC_RET1(handle, 0);
+ break;
+
+ default:
+ ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
+ break;
+ }
+
+ SMC_RET1(handle, SMC_UNK);
+}
+
+/* Define a runtime service descriptor for fast SMC calls */
+DECLARE_RT_SVC(
+ tegra186_sip_fast,
+
+ OEN_SIP_START,
+ OEN_SIP_END,
+ SMC_TYPE_FAST,
+ NULL,
+ tegra186_sip_handler
+);