[bl33] add aarch linux boot support

board/longanpi-3h/load_bl31/main.c

@@ -298,7 +298,7 @@ int main(void) {
 
     clean_syterkit_data();
 
-    jmp_to_arm64(CONFIG_UBOOT_LOAD_ADDR);
+    jmp_to_arm64(CONFIG_BL31_LOAD_ADDR);
 
     printk(LOG_LEVEL_INFO, "Back to SyterKit\n");
 

utils/bl32/Makefile → utils/bl33/Makefile

@@ -3,7 +3,7 @@
 #
 
 CROSS		?= arm-linux-gnueabi-
-NAME		:= syter_bl32
+NAME		:= syter_bl33
 
 #
 # System environment variable.
@@ -19,14 +19,14 @@ endif
 #
 # Load default variables.
 #
-ASFLAGS		:= -g -ggdb -Wall -O0
-CFLAGS		:= -g -ggdb -Wall -O0
-CXXFLAGS	:= -g -ggdb -Wall -O0
+ASFLAGS		:= -g -ggdb -Wall -Os
+CFLAGS		:= -g -ggdb -Wall -Os
+CXXFLAGS	:= -g -ggdb -Wall -Os
 LDFLAGS		:= -T link.ld -nostdlib 
 ARFLAGS		:= -rcs
 OCFLAGS		:= -v -O binary
 ODFLAGS		:=
-MCFLAGS		:= -nostdinc -nostdlib -g -ggdb -mcpu=cortex-a53 -Wno-builtin-declaration-mismatch -Wno-int-to-pointer-cast
+MCFLAGS		:= -nostdinc -nostdlib -g -ggdb -mabi=aapcs-linux -march=armv7-a -Wno-builtin-declaration-mismatch -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast
 
 LIBDIRS		:= 
 LIBS 		:= 

utils/bl33/include/linkage.h

@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#ifndef __ARM32_LINKAGE_H__
+#define __ARM32_LINKAGE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ALIGN .align 0
+#define ALIGN_STR ".align 0"
+
+#define ENTRY(name) \
+    .globl name;    \
+    ALIGN;          \
+    name:
+
+#define WEAK(name) \
+    .weak name;    \
+    name:
+
+#define END(name) .size name, .- name
+
+#define ENDPROC(name)       \
+    .type name, % function; \
+    END(name)
+
+/*
+ * CR1 bits (CP#15 CR1)
+ */
+#define CR_M (1 << 0)   /* MMU enable				*/
+#define CR_A (1 << 1)   /* Alignment abort enable		*/
+#define CR_C (1 << 2)   /* Dcache enable			*/
+#define CR_W (1 << 3)   /* Write buffer enable			*/
+#define CR_P (1 << 4)   /* 32-bit exception handler		*/
+#define CR_D (1 << 5)   /* 32-bit data address range		*/
+#define CR_L (1 << 6)   /* Implementation defined		*/
+#define CR_B (1 << 7)   /* Big endian				*/
+#define CR_S (1 << 8)   /* System MMU protection		*/
+#define CR_R (1 << 9)   /* ROM MMU protection			*/
+#define CR_F (1 << 10)  /* Implementation defined		*/
+#define CR_Z (1 << 11)  /* Implementation defined		*/
+#define CR_I (1 << 12)  /* Icache enable			*/
+#define CR_V (1 << 13)  /* Vectors relocated to 0xffff0000	*/
+#define CR_RR (1 << 14) /* Round Robin cache replacement	*/
+#define CR_L4 (1 << 15) /* LDR pc can set T bit			*/
+#define CR_DT (1 << 16)
+#define CR_IT (1 << 18)
+#define CR_ST (1 << 19)
+#define CR_FI (1 << 21)  /* Fast interrupt (lower latency mode)	*/
+#define CR_U (1 << 22)   /* Unaligned access operation		*/
+#define CR_XP (1 << 23)  /* Extended page tables			*/
+#define CR_VE (1 << 24)  /* Vectored interrupts			*/
+#define CR_EE (1 << 25)  /* Exception (Big) Endian		*/
+#define CR_TRE (1 << 28) /* TEX remap enable			*/
+#define CR_AFE (1 << 29) /* Access flag enable			*/
+#define CR_TE (1 << 30)  /* Thumb exception enable		*/
+
+/* ARM relocs */
+#define R_ARM_NONE 0      /* No reloc */
+#define R_ARM_RELATIVE 23 /* Adjust by program base */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ARM32_LINKAGE_H__ */

utils/bl33/link.ld

@@ -0,0 +1,27 @@
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x4a000000;
+	. = ALIGN(4);
+	.text :
+	{
+		.obj/source/start.o (*.text)
+		*(.text*)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+	. = ALIGN(4);
+	.data : {
+		*(.data*)
+	}
+
+	.interp : { *(.interp*) }
+	.gnu.hash : { *(.gnu.hash) }
+	.gnu : { *(.gnu*) }
+	.ARM.exidx : { *(.ARM.exidx*) }
+	.gnu.linkonce.armexidx : { *(.gnu.linkonce.armexidx.*) }
+}

utils/bl33/source/main.c

@@ -0,0 +1,34 @@
+#include <byteorder.h>
+#include <endian.h>
+#include <io.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <types.h>
+
+#define CONFIG_DTB_LOAD_ADDR (0x4a200000)
+#define CONFIG_KERNEL_LOAD_ADDR (0x40080000)
+
+extern uint32_t __sunxi_smc_call(uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3);
+
+static inline uint32_t sunxi_smc_call_atf(uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3) {
+    return __sunxi_smc_call(arg0, arg1, arg2, arg3);
+}
+
+void print_banner(void) {
+    printf(" _____     _           _____ __    ___ ___ \n");
+    printf("|   __|_ _| |_ ___ ___| __  |  |  |_  |_  |\n");
+    printf("|__   | | |  _| -_|  _| __ -|  |__|_  |_  |\n");
+    printf("|_____|_  |_| |___|_| |_____|_____|___|___|\n");
+    printf("      |___|                                \n");
+    printf("\n");
+    printf("Hello Syter BL33!\n");
+    printf("load kernel 0x%08x to aarch64 mode...\n", CONFIG_KERNEL_LOAD_ADDR);
+    printf("load dtb 0x%08x...\n\n", CONFIG_DTB_LOAD_ADDR);
+
+    printf("Start Kernel...\n\n");
+
+    mdelay(10);
+}

utils/bl32/source/smccc-call.S → utils/bl33/source/smccc-call.S

@@ -1,11 +1,9 @@
-.align 0
-.globl __sunxi_smc_call ;
+#include <linkage.h>
 
-__sunxi_smc_call:
+ENTRY(__sunxi_smc_call)
 	stmfd	sp!, {r4-r12, lr}	@ save reg state
 	.arch_extension sec
 	smc #0
 	ldmfd	sp!, {r4-r12, pc}	@ restore saved regs and return
+ENDPROC(__sunxi_smc_call)
 
-.type __sunxi_smc_call 2 ;
-.size __sunxi_smc_call, .-__sunxi_smc_call