From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 plat/arm/board/fvp/fvp_bl1_setup.c | 89 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 plat/arm/board/fvp/fvp_bl1_setup.c

(limited to 'plat/arm/board/fvp/fvp_bl1_setup.c')

diff --git a/plat/arm/board/fvp/fvp_bl1_setup.c b/plat/arm/board/fvp/fvp_bl1_setup.c
new file mode 100644
index 0000000..59fc0f3
--- /dev/null
+++ b/plat/arm/board/fvp/fvp_bl1_setup.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <errno.h>
+
+#include <bl1/bl1.h>
+#include <common/tbbr/tbbr_img_def.h>
+#include <drivers/arm/smmu_v3.h>
+#include <drivers/arm/sp805.h>
+#include <lib/mmio.h>
+#include <plat/arm/common/arm_config.h>
+#include <plat/arm/common/plat_arm.h>
+#include <plat/arm/common/arm_def.h>
+#include <plat/common/platform.h>
+#include "fvp_private.h"
+
+/*******************************************************************************
+ * Perform any BL1 specific platform actions.
+ ******************************************************************************/
+void bl1_early_platform_setup(void)
+{
+	arm_bl1_early_platform_setup();
+
+	/* Initialize the platform config for future decision making */
+	fvp_config_setup();
+
+	/*
+	 * Initialize Interconnect for this cluster during cold boot.
+	 * No need for locks as no other CPU is active.
+	 */
+	fvp_interconnect_init();
+	/*
+	 * Enable coherency in Interconnect for the primary CPU's cluster.
+	 */
+	fvp_interconnect_enable();
+}
+
+void plat_arm_secure_wdt_start(void)
+{
+	sp805_start(ARM_SP805_TWDG_BASE, ARM_TWDG_LOAD_VAL);
+}
+
+void plat_arm_secure_wdt_stop(void)
+{
+	sp805_stop(ARM_SP805_TWDG_BASE);
+}
+
+void bl1_platform_setup(void)
+{
+	arm_bl1_platform_setup();
+
+	/* Initialize System level generic or SP804 timer */
+	fvp_timer_init();
+
+	/* On FVP RevC, initialize SMMUv3 */
+	if ((arm_config.flags & ARM_CONFIG_FVP_HAS_SMMUV3) != 0U)
+		smmuv3_security_init(PLAT_FVP_SMMUV3_BASE);
+}
+
+__dead2 void bl1_plat_fwu_done(void *client_cookie, void *reserved)
+{
+	uint32_t nv_flags = mmio_read_32(V2M_SYS_NVFLAGS_ADDR);
+
+	/* Clear the NV flags register. */
+	mmio_write_32((V2M_SYSREGS_BASE + V2M_SYS_NVFLAGSCLR),
+		      nv_flags);
+
+	/* Setup the watchdog to reset the system as soon as possible */
+	sp805_refresh(ARM_SP805_TWDG_BASE, 1U);
+
+	while (true)
+		wfi();
+}
+
+/*******************************************************************************
+ * The following function checks if Firmware update is needed by checking error
+ * reported in NV flag.
+ ******************************************************************************/
+bool plat_arm_bl1_fwu_needed(void)
+{
+	int32_t nv_flags = (int32_t)mmio_read_32(V2M_SYS_NVFLAGS_ADDR);
+
+	/* if image load/authentication failed */
+	return ((nv_flags == -EAUTH) || (nv_flags == -ENOENT));
+}
-- 
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