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main.c
/* SPDX-License-Identifier: Apache-2.0 */
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <log.h>
#include <common.h>
#include <mmu.h>
#include <cli.h>
#include <cli_shell.h>
#include <cli_termesc.h>
#include <sys-dram.h>
#include <sys-gpio.h>
#include <sys-i2c.h>
#include <sys-sdcard.h>
#include <sys-sid.h>
#include <sys-spi.h>
#include <sys-uart.h>
extern sunxi_serial_t uart_dbg;
extern sunxi_i2c_t i2c_pmu;
extern sunxi_sdhci_t sdhci2;
extern uint32_t dram_para[32];
static uint32_t *offset_ptr = (uint32_t*)(0x40000 + 0x4a50);
static uint32_t *offset_ptr2 = (uint32_t*)(0x40000 + 0x4a54);
static uint8_t *read_buffer_start = (uint8_t*)(0x40000 + 0x4a50 + 0x9b0);
static uint8_t *read_buffer = (uint8_t*)(0x40000 + 0x4a50 + 0x9b4);
#define LOOP_CNT 16
int cmd_read() {
if (*offset_ptr2 != 0x57357357) {
*offset_ptr2 = 0x57357357;
*offset_ptr = 0;
}
memset(read_buffer, 0x57, 512 * LOOP_CNT);
*read_buffer_start = *offset_ptr;
for (int i = 0; i < LOOP_CNT; i++) {
uint32_t cur_block = *offset_ptr;
sdmmc_blk_read(&card0, read_buffer + (512 * i), cur_block, 1);
cur_block++;
*offset_ptr = cur_block;
}
return 0;
}
int main(void) {
// sunxi_serial_init(&uart_dbg);
// show_banner();
sunxi_clk_init();
sunxi_clk_dump();
sunxi_i2c_init(&i2c_pmu);
pmu_axp1530_init(&i2c_pmu);
enable_sram_a3();
printk_info("DRAM: DRAM Size = %dMB\n", sunxi_dram_init(&dram_para));
sunxi_clk_dump();
/* Initialize the SD host controller. */
if (sunxi_sdhci_init(&sdhci2) != 0) {
printk_error("SMHC: %s controller init failed\n", sdhci2.name);
} else {
printk_info("SMHC: %s controller initialized\n", sdhci2.name);
}
/* Initialize the SD card and check if initialization is successful. */
if (sdmmc_init(&card0, &sdhci2) != 0) {
printk_warning("SMHC: init failed\n");
} else {
printk_debug("Card OK!\n");
}
cmd_read();
return 0;
}
Raw
sunxi-syterkit_ddrmini_fel.patch
diff --git a/board/avaota-a1/board.c b/board/avaota-a1/board.c
index d7f8d5e..58db661 100644
--- a/board/avaota-a1/board.c
+++ b/board/avaota-a1/board.c
@@ -155,17 +155,7 @@ const char *dram_para_name[2] = {
};
void neon_enable(void) {
- /* set NSACR, both Secure and Non-secure access are allowed to NEON */
- asm volatile("MRC p15, 0, r0, c1, c1, 2");
- asm volatile("ORR r0, r0, #(0x3<<10) @ enable fpu/neon");
- asm volatile("MCR p15, 0, r0, c1, c1, 2");
- /* Set the CPACR for access to CP10 and CP11*/
- asm volatile("LDR r0, =0xF00000");
- asm volatile("MCR p15, 0, r0, c1, c0, 2");
- /* Set the FPEXC EN bit to enable the FPU */
- asm volatile("MOV r3, #0x40000000");
- /*@VMSR FPEXC, r3*/
- asm volatile("MCR p10, 7, r3, c8, c0, 0");
+ return;
}
void gicr_set_waker(void) {
diff --git a/board/avaota-a1/start.S b/board/avaota-a1/start.S
index 32d1785..b000722 100644
--- a/board/avaota-a1/start.S
+++ b/board/avaota-a1/start.S
@@ -59,7 +59,7 @@
_start:
b reset
-
+
.align 5
_vector:
b reset
@@ -87,84 +87,18 @@ _fiq:
.word fiq
reset:
- /* Enter svc mode cleanly and mask interrupts */
- mrs r0, cpsr
- bic r0, r0, #ARMV7_MODE_MASK
- orr r0, r0, #ARMV7_SVC_MODE
- orr r0, r0, #(ARMV7_IRQ_MASK | ARMV7_FIQ_MASK)
- bic r0, r0, #(1<<9) @set little-endian
- msr cpsr_c, r0
-
- /* Set vector base address register */
- ldr r0, =_vector
- mcr p15, 0, r0, c12, c0, 0
- mrc p15, 0, r0, c1, c0, 0
- bic r0, #(1 << 13)
- mcr p15, 0, r0, c1, c0, 0
-
- mrc p15, 0, r0, c1, c0, 0
- bic r0, r0, #0x00002000 @ clear bits 13 (--V-)
- bic r0, r0, #0x00000007 @ clear bits 2:0 (-CAM)
- orr r0, r0, #0x00000800 @ set bit 11 (Z---) BTB
- bic r0, r0, #0x00001000 @ clear bit 12 (I) I-cache
- mcr p15, 0, r0, c1, c0, 0
-
- /* Set stack pointer */
- /* Initialize UND stacks */
- mrs r0, cpsr
- bic r0, r0, #ARMV7_MODE_MASK
- orr r1, r0, #ARMV7_UND_MODE
- msr cpsr_cxsf, r1
- ldr sp, _stack_und_end
-
- /* Initialize ABT stacks */
- mrs r0, cpsr
- bic r0, r0, #ARMV7_MODE_MASK
- orr r1, r0, #ARMV7_ABT_MODE
- msr cpsr_cxsf, r1
- ldr sp, _stack_abt_end
-
- /* Initialize IRQ stacks */
- mrs r0, cpsr
- bic r0, r0, #ARMV7_MODE_MASK
- orr r1, r0, #ARMV7_IRQ_MODE
- msr cpsr_cxsf, r1
- ldr sp, _stack_irq_end
-
- /* Initialize FIQ stacks */
- mrs r0, cpsr
- bic r0, r0, #ARMV7_MODE_MASK
- orr r1, r0, #ARMV7_FIQ_MODE
- msr cpsr_cxsf, r1
- ldr sp, _stack_fiq_end
-
- /* Initialize SVC stacks */
- mrs r0, cpsr
- bic r0, r0, #ARMV7_MODE_MASK
- orr r1, r0, #ARMV7_SVC_MODE
- msr cpsr_cxsf, r1
- ldr sp, _stack_srv_end
+ push { lr }
bl clear_bss
- /*
- * disable interrupts (FIQ and IRQ), also set the cpu to SVC32 mode,
- * except if in HYP mode already
- */
- mrs r0, cpsr
- and r1, r0, #ARMV7_MODE_MASK @ mask mode bits
- teq r1, #0x1a @ test for HYP mode
- bicne r0, r0, #ARMV7_MODE_MASK @ clear all mode bits
- orrne r0, r0, #ARMV7_SVC_MODE @ set SVC mode
- orr r0, r0, #0xc0 @ disable FIQ and IRQ
- msr cpsr,r0
-
bl set_timer_count
bl neon_enable
bl main
+ pop { pc }
+
clear_bss:
ldr r0, =_sbss
ldr r1, =_ebss
diff --git a/cmake/board/avaota-a1.cmake b/cmake/board/avaota-a1.cmake
index aed12ec..c9dce7f 100644
--- a/cmake/board/avaota-a1.cmake
+++ b/cmake/board/avaota-a1.cmake
@@ -31,7 +31,7 @@ set(CROSS_COMPILE ${CROSS_COMPILE} CACHE STRING "CROSS_COMPILE Toolchain")
set(CMAKE_C_COMPILER "${CROSS_COMPILE}gcc")
set(CMAKE_CXX_COMPILER "${CROSS_COMPILE}g++")
-set(CMAKE_COMMON_FLAGS "-nostdlib -nostdinc -Os -march=armv8.2-a -mthumb-interwork -fno-common -ffunction-sections -fno-builtin -fno-stack-protector -ffreestanding -mthumb -mfpu=neon -mfloat-abi=softfp -pipe")
+set(CMAKE_COMMON_FLAGS "-nostdlib -nostdinc -Os -march=armv8.2-a -mthumb-interwork -fno-common -ffunction-sections -fno-builtin -fno-stack-protector -ffreestanding -mthumb -mfloat-abi=softfp -pipe")
# Disable specific warning flags for C and C++ compilers
set(CMAKE_C_DISABLE_WARN_FLAGS "-Wno-int-to-pointer-cast -Wno-implicit-function-declaration -Wno-discarded-qualifiers")
diff --git a/include/log.h b/include/log.h
index af997ba..7f29a7a 100644
--- a/include/log.h
+++ b/include/log.h
@@ -32,7 +32,7 @@ extern "C" {
#elif defined TRACE_MODE
#define LOG_LEVEL_DEFAULT LOG_LEVEL_TRACE
#else
-#define LOG_LEVEL_DEFAULT LOG_LEVEL_INFO
+#define LOG_LEVEL_DEFAULT LOG_LEVEL_MUTE
#endif// DEBUG_MODE
#endif// LOG_LEVEL_DEFAULT
Raw
sunxi-tools_ddrmini.patch
diff --git a/soc_info.c b/soc_info.c
index 264d5bc..3c36511 100644
--- a/soc_info.c
+++ b/soc_info.c
@@ -618,6 +618,7 @@ soc_info_t soc_info_table[] = {
.sid_sections = generic_2k_sid_maps,
.rvbar_reg = 0x08000040,
.watchdog = &wd_a523_compat,
+ .icache_fix = true,
},{
.swap_buffers = NULL /* End of the table */
}
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