feat(msm8916): add SP_MIN port for AArch32
Use the new shared msm8916 setup code to allow compiling the minimal
AArch32 Secure Payload (SP_MIN) as simple PSCI implementation.
AArch64 is preferred for the Cortex-A53 cores in MSM8916 but there are
some similar platforms with AArch32-only Cortex-A7 cores that can
benefit from this in future changes.
The AArch32 assembly implementation for msm8916_helpers.S and
uartdm_console.S is a direct port of the AArch64 implementation.
Only plat_get_my_entrypoint is slightly different because there is no
need to handle the "boot remapper" on cold boot for AArch32.
Change-Id: Idf160e86fb3e685fcedec3e051400e6273997b74
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
diff --git a/plat/qti/msm8916/sp_min/msm8916_sp_min_setup.c b/plat/qti/msm8916/sp_min/msm8916_sp_min_setup.c
new file mode 100644
index 0000000..78ab0c7
--- /dev/null
+++ b/plat/qti/msm8916/sp_min/msm8916_sp_min_setup.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2022-2023, Stephan Gerhold <stephan@gerhold.net>
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <common/debug.h>
+#include <lib/xlat_tables/xlat_mmu_helpers.h>
+#include <platform_sp_min.h>
+
+#include "../msm8916_config.h"
+#include "../msm8916_setup.h"
+
+static struct {
+ entry_point_info_t bl33;
+} image_ep_info = {
+ /* BL33 entry point */
+ SET_STATIC_PARAM_HEAD(bl33, PARAM_EP, VERSION_1,
+ entry_point_info_t, NON_SECURE),
+ .bl33.pc = PRELOADED_BL33_BASE,
+ .bl33.spsr = SPSR_MODE32(MODE32_hyp, SPSR_T_ARM, SPSR_E_LITTLE,
+ DISABLE_ALL_EXCEPTIONS),
+};
+
+void sp_min_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+ u_register_t arg2, u_register_t arg3)
+{
+ msm8916_early_platform_setup();
+}
+
+void sp_min_plat_arch_setup(void)
+{
+ msm8916_plat_arch_setup(BL32_BASE, BL32_END - BL32_BASE);
+ enable_mmu_svc_mon(0);
+}
+
+void sp_min_platform_setup(void)
+{
+ INFO("SP_MIN: Platform setup start\n");
+ msm8916_platform_setup();
+ msm8916_configure();
+ INFO("SP_MIN: Platform setup done\n");
+}
+
+entry_point_info_t *sp_min_plat_get_bl33_ep_info(void)
+{
+ return &image_ep_info.bl33;
+}