feat(imx93): add the basic support
Add the basic boot support for i.MX93.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I48bac2fd8bf2145133edf101a315908266c3f50a
diff --git a/plat/imx/imx93/imx93_bl31_setup.c b/plat/imx/imx93/imx93_bl31_setup.c
new file mode 100644
index 0000000..6f64a29
--- /dev/null
+++ b/plat/imx/imx93/imx93_bl31_setup.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2022-2023 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <stdbool.h>
+
+#include <arch_helpers.h>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <context.h>
+#include <drivers/console.h>
+#include <drivers/generic_delay_timer.h>
+#include <drivers/nxp/trdc/imx_trdc.h>
+#include <lib/el3_runtime/context_mgmt.h>
+#include <lib/mmio.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+#include <plat/common/platform.h>
+
+#include <imx8_lpuart.h>
+#include <plat_imx8.h>
+#include <platform_def.h>
+
+#define MAP_BL31_TOTAL \
+ MAP_REGION_FLAT(BL31_BASE, BL31_LIMIT - BL31_BASE, MT_MEMORY | MT_RW | MT_SECURE)
+#define MAP_BL31_RO \
+ MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE, MT_MEMORY | MT_RO | MT_SECURE)
+
+static const mmap_region_t imx_mmap[] = {
+ AIPS1_MAP, AIPS2_MAP, AIPS4_MAP, GIC_MAP,
+ TRDC_A_MAP, TRDC_W_MAP, TRDC_M_MAP,
+ TRDC_N_MAP,
+ {0},
+};
+
+static entry_point_info_t bl32_image_ep_info;
+static entry_point_info_t bl33_image_ep_info;
+
+/* get SPSR for BL33 entry */
+static uint32_t get_spsr_for_bl33_entry(void)
+{
+ unsigned long el_status;
+ unsigned long mode;
+ uint32_t spsr;
+
+ /* figure out what mode we enter the non-secure world */
+ el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
+ el_status &= ID_AA64PFR0_ELX_MASK;
+
+ mode = (el_status) ? MODE_EL2 : MODE_EL1;
+
+ spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+ return spsr;
+}
+
+void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+ u_register_t arg2, u_register_t arg3)
+{
+ static console_t console;
+
+ console_lpuart_register(IMX_LPUART_BASE, IMX_BOOT_UART_CLK_IN_HZ,
+ IMX_CONSOLE_BAUDRATE, &console);
+
+ /* This console is only used for boot stage */
+ console_set_scope(&console, CONSOLE_FLAG_BOOT);
+
+ /*
+ * tell BL3-1 where the non-secure software image is located
+ * and the entry state information.
+ */
+ bl33_image_ep_info.pc = PLAT_NS_IMAGE_OFFSET;
+ bl33_image_ep_info.spsr = get_spsr_for_bl33_entry();
+ SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
+}
+
+void bl31_plat_arch_setup(void)
+{
+ /* no coherence memory support on i.MX9 */
+ const mmap_region_t bl_regions[] = {
+ MAP_BL31_TOTAL,
+ MAP_BL31_RO,
+ };
+
+ /* Assign all the GPIO pins to non-secure world by default */
+ mmio_write_32(GPIO2_BASE + 0x10, 0xffffffff);
+ mmio_write_32(GPIO2_BASE + 0x14, 0x3);
+ mmio_write_32(GPIO2_BASE + 0x18, 0xffffffff);
+ mmio_write_32(GPIO2_BASE + 0x1c, 0x3);
+
+ mmio_write_32(GPIO3_BASE + 0x10, 0xffffffff);
+ mmio_write_32(GPIO3_BASE + 0x14, 0x3);
+ mmio_write_32(GPIO3_BASE + 0x18, 0xffffffff);
+ mmio_write_32(GPIO3_BASE + 0x1c, 0x3);
+
+ mmio_write_32(GPIO4_BASE + 0x10, 0xffffffff);
+ mmio_write_32(GPIO4_BASE + 0x14, 0x3);
+ mmio_write_32(GPIO4_BASE + 0x18, 0xffffffff);
+ mmio_write_32(GPIO4_BASE + 0x1c, 0x3);
+
+ mmio_write_32(GPIO1_BASE + 0x10, 0xffffffff);
+ mmio_write_32(GPIO1_BASE + 0x14, 0x3);
+ mmio_write_32(GPIO1_BASE + 0x18, 0xffffffff);
+ mmio_write_32(GPIO1_BASE + 0x1c, 0x3);
+
+ setup_page_tables(bl_regions, imx_mmap);
+ enable_mmu_el3(0);
+
+ /* trdc must be initialized */
+ trdc_config();
+}
+
+void bl31_platform_setup(void)
+{
+ generic_delay_timer_init();
+
+ plat_gic_driver_init();
+ plat_gic_init();
+}
+
+void bl31_plat_runtime_setup(void)
+{
+ console_switch_state(CONSOLE_FLAG_RUNTIME);
+}
+
+entry_point_info_t *bl31_plat_get_next_image_ep_info(unsigned int type)
+{
+ if (type == NON_SECURE) {
+ return &bl33_image_ep_info;
+ }
+
+ if (type == SECURE) {
+ return &bl32_image_ep_info;
+ }
+
+ return NULL;
+}
+
+unsigned int plat_get_syscnt_freq2(void)
+{
+ return COUNTER_FREQUENCY;
+}