sc7180 platform support
Adding support for QTI CHIP SC7180 on ATF
Change-Id: I0d82d3a378036003fbd0bc4784f61464bb76ea82
Signed-off-by: Saurabh Gorecha <sgorecha@codeaurora.org>
Co-authored-by: Maulik Shah <mkshah@codeaurora.org>
diff --git a/plat/qti/common/src/qti_bl31_setup.c b/plat/qti/common/src/qti_bl31_setup.c
new file mode 100644
index 0000000..b2bc543
--- /dev/null
+++ b/plat/qti/common/src/qti_bl31_setup.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <bl31/bl31.h>
+#include <common/debug.h>
+#include <common/desc_image_load.h>
+#include <drivers/console.h>
+#include <drivers/generic_delay_timer.h>
+#include <lib/bl_aux_params/bl_aux_params.h>
+#include <lib/coreboot.h>
+#include <lib/spinlock.h>
+
+#include <platform.h>
+#include <qti_interrupt_svc.h>
+#include <qti_plat.h>
+#include <qti_uart_console.h>
+#include <qtiseclib_interface.h>
+
+/*
+ * Placeholder variables for copying the arguments that have been passed to
+ * BL31 from BL2.
+ */
+static entry_point_info_t bl33_image_ep_info;
+
+/*
+ * Variable to hold counter frequency for the CPU's generic timer. In this
+ * platform coreboot image configure counter frequency for boot core before
+ * reaching TF-A.
+ */
+static uint64_t g_qti_cpu_cntfrq;
+
+/*
+ * Lock variable to serialize cpuss reset execution.
+ */
+spinlock_t g_qti_cpuss_boot_lock __attribute__ ((section("tzfw_coherent_mem"),
+ aligned(CACHE_WRITEBACK_GRANULE))) = {0x0};
+
+/*
+ * Variable to hold bl31 cold boot status. Default value 0x0 means yet to boot.
+ * Any other value means cold booted.
+ */
+uint32_t g_qti_bl31_cold_booted __attribute__ ((section("tzfw_coherent_mem"))) = 0x0;
+
+/*******************************************************************************
+ * Perform any BL31 early platform setup common to ARM standard platforms.
+ * Here is an opportunity to copy parameters passed by the calling EL (S-EL1
+ * in BL2 & S-EL3 in BL1) before they are lost (potentially). This needs to be
+ * done before the MMU is initialized so that the memory layout can be used
+ * while creating page tables. BL2 has flushed this information to memory, so
+ * we are guaranteed to pick up good data.
+ ******************************************************************************/
+void bl31_early_platform_setup(u_register_t from_bl2,
+ u_register_t plat_params_from_bl2)
+{
+
+ g_qti_cpu_cntfrq = read_cntfrq_el0();
+
+ bl_aux_params_parse(plat_params_from_bl2, NULL);
+
+#if COREBOOT
+ if (coreboot_serial.baseaddr != 0) {
+ static console_t g_qti_console_uart;
+
+ qti_console_uart_register(&g_qti_console_uart,
+ coreboot_serial.baseaddr);
+ }
+#endif
+
+ /*
+ * Tell BL31 where the non-trusted software image
+ * is located and the entry state information
+ */
+ bl31_params_parse_helper(from_bl2, NULL, &bl33_image_ep_info);
+}
+
+void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+ u_register_t arg2, u_register_t arg3)
+{
+ bl31_early_platform_setup(arg0, arg1);
+}
+
+/*******************************************************************************
+ * Perform the very early platform specific architectural setup here. At the
+ * moment this only intializes the mmu in a quick and dirty way.
+ ******************************************************************************/
+void bl31_plat_arch_setup(void)
+{
+ qti_setup_page_tables(BL_CODE_BASE,
+ BL_COHERENT_RAM_END - BL_CODE_BASE,
+ BL_CODE_BASE,
+ BL_CODE_END,
+ BL_RO_DATA_BASE,
+ BL_RO_DATA_END,
+ BL_COHERENT_RAM_BASE, BL_COHERENT_RAM_END);
+ enable_mmu_el3(0);
+}
+
+/*******************************************************************************
+ * Perform any BL31 platform setup common to ARM standard platforms
+ ******************************************************************************/
+void bl31_platform_setup(void)
+{
+ generic_delay_timer_init();
+ /* Initialize the GIC driver, CPU and distributor interfaces */
+ plat_qti_gic_driver_init();
+ plat_qti_gic_init();
+ qti_interrupt_svc_init();
+ qtiseclib_bl31_platform_setup();
+
+ /* set boot state to cold boot complete. */
+ g_qti_bl31_cold_booted = 0x1;
+}
+
+/*******************************************************************************
+ * Return a pointer to the 'entry_point_info' structure of the next image for the
+ * security state specified. BL33 corresponds to the non-secure image type
+ * while BL32 corresponds to the secure image type. A NULL pointer is returned
+ * if the image does not exist.
+ ******************************************************************************/
+entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
+{
+ /* QTI platform don't have BL32 implementation. */
+ assert(type == NON_SECURE);
+ assert(bl33_image_ep_info.h.type == PARAM_EP);
+ assert(bl33_image_ep_info.h.attr == NON_SECURE);
+ /*
+ * None of the images on the platforms can have 0x0
+ * as the entrypoint.
+ */
+ if (bl33_image_ep_info.pc) {
+ return &bl33_image_ep_info;
+ } else {
+ return NULL;
+ }
+}
+
+/*******************************************************************************
+ * This function is used by the architecture setup code to retrieve the counter
+ * frequency for the CPU's generic timer. This value will be programmed into the
+ * CNTFRQ_EL0 register. In Arm standard platforms, it returns the base frequency
+ * of the system counter, which is retrieved from the first entry in the
+ * frequency modes table. This will be used later in warm boot (psci_arch_setup)
+ * of CPUs to set when CPU frequency.
+ ******************************************************************************/
+unsigned int plat_get_syscnt_freq2(void)
+{
+ assert(g_qti_cpu_cntfrq != 0);
+ return g_qti_cpu_cntfrq;
+}