[board] add dongshanpi-aict board

board/dongshanpi-aict/CMakeLists.txt

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+set(APP_COMMON_SOURCE 
+    ${CMAKE_CURRENT_SOURCE_DIR}/start.S 
+    ${CMAKE_CURRENT_SOURCE_DIR}/board.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/eabi_compat.c
+)
+
+add_subdirectory(hello_world)
+
+add_subdirectory(read_chipsid)
+
+add_subdirectory(init_dram)
+
+add_subdirectory(read_chip_efuse)
+
+add_subdirectory(syter_boot)
+
+add_subdirectory(syter_bootargs)
+
+add_subdirectory(load_e907)
+
+add_subdirectory(syter_amp)
+
+add_subdirectory(fdt_parser)
+
+add_subdirectory(cli_test)
+
+add_subdirectory(fdt_cli)
+
+add_subdirectory(syter_boot_spi)
+
+add_subdirectory(i2c_test)
+
+add_subdirectory(i2c_oled)
+
+add_subdirectory(spi_lcd)

board/dongshanpi-aict/README.md

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+# SyterKit Common 
+
+## start.S
+
+This code snippet is an ARM assembly language program that includes initialization settings and exception handlers. Here's a breakdown of its functionalities:
+
+1. Initialization Settings: It sets registers and writes specific values to configure the processor's working mode, interrupt enable, etc.
+
+2. Set Vector Table: It writes the address of the vector table to the Vector Base Address Register, which is used for handling exceptions and interrupts.
+
+3. Enable NEON/VFP Unit: It configures the processor to enable the NEON (Advanced SIMD) and VFP (Floating-Point) units.
+
+4. Clear BSS Section: It zeroes out variables in the BSS section.
+
+5. Disable Interrupts: It disables FIQ and IRQ interrupts and switches the processor to SVC32 mode.
+
+6. Set Timer Frequency: It sets the timer frequency to 24M.
+
+7. Call the main Function: It jumps to the main function to execute the main logic.
+
+## eabi_compat.c
+
+This code snippet appears to be providing implementations for the functions `abort`, `raise`, and `__aeabi_unwind_cpp_pr0`. Here's a breakdown of their functionalities:
+
+1. `void abort(void)`: This function creates an infinite loop, causing the program to hang indefinitely. It is typically used to indicate a critical error or unrecoverable condition in a program.
+
+2. `int raise(int signum)`: This function is a placeholder and always returns 0. In standard C, this function is used to raise a signal and initiate the corresponding signal handler. However, in this implementation, it does nothing and simply returns 0.
+
+3. `void __aeabi_unwind_cpp_pr0(void)`: This is a dummy function that serves as a placeholder to avoid linker complaints. Its purpose is to satisfy the linker when using C++ exceptions and unwinding, but it does not contain any actual functionality.

board/dongshanpi-aict/board.c

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+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <types.h>
+
+#include <log.h>
+
+#include <common.h>
+
+#include <reg-ncat.h>
+#include <sys-clk.h>
+
+#include <mmu.h>
+
+#include <sys-dram.h>
+#include <sys-gpio.h>
+#include <sys-sdcard.h>
+#include <sys-spi.h>
+#include <sys-uart.h>
+
+sunxi_serial_t uart_dbg = {
+        .base = 0x02500000,
+        .id = 0,
+        .gpio_tx = {GPIO_PIN(GPIO_PORTH, 9), GPIO_PERIPH_MUX5},
+        .gpio_rx = {GPIO_PIN(GPIO_PORTH, 10), GPIO_PERIPH_MUX5},
+};
+
+sunxi_spi_t sunxi_spi0 = {
+        .base = 0x04025000,
+        .id = 0,
+        .clk_rate = 75 * 1000 * 1000,
+        .gpio_cs = {GPIO_PIN(GPIO_PORTC, 1), GPIO_PERIPH_MUX4},
+        .gpio_sck = {GPIO_PIN(GPIO_PORTC, 0), GPIO_PERIPH_MUX4},
+        .gpio_mosi = {GPIO_PIN(GPIO_PORTC, 2), GPIO_PERIPH_MUX4},
+        .gpio_miso = {GPIO_PIN(GPIO_PORTC, 3), GPIO_PERIPH_MUX4},
+        .gpio_wp = {GPIO_PIN(GPIO_PORTC, 4), GPIO_PERIPH_MUX4},
+        .gpio_hold = {GPIO_PIN(GPIO_PORTC, 5), GPIO_PERIPH_MUX4},
+};
+
+sdhci_t sdhci0 = {
+        .name = "sdhci0",
+        .reg = (sdhci_reg_t *) 0x04020000,
+        .voltage = MMC_VDD_27_36,
+        .width = MMC_BUS_WIDTH_4,
+        .clock = MMC_CLK_50M,
+        .removable = 0,
+        .isspi = FALSE,
+        .gpio_clk = {GPIO_PIN(GPIO_PORTF, 2), GPIO_PERIPH_MUX2},
+        .gpio_cmd = {GPIO_PIN(GPIO_PORTF, 3), GPIO_PERIPH_MUX2},
+        .gpio_d0 = {GPIO_PIN(GPIO_PORTF, 1), GPIO_PERIPH_MUX2},
+        .gpio_d1 = {GPIO_PIN(GPIO_PORTF, 0), GPIO_PERIPH_MUX2},
+        .gpio_d2 = {GPIO_PIN(GPIO_PORTF, 5), GPIO_PERIPH_MUX2},
+        .gpio_d3 = {GPIO_PIN(GPIO_PORTF, 4), GPIO_PERIPH_MUX2},
+};
+
+dram_para_t dram_para = {
+        .dram_clk = 936,
+        .dram_type = 3,
+        .dram_zq = 0x7b7bfb,
+        .dram_odt_en = 0x1,
+        .dram_para1 = 0x0010f2,
+        .dram_para2 = 0x0,
+        .dram_mr0 = 0x1c70,
+        .dram_mr1 = 0x42,
+        .dram_mr2 = 0x18,
+        .dram_mr3 = 0x0,
+        .dram_tpr0 = 0x004A2195,
+        .dram_tpr1 = 0x02423190,
+        .dram_tpr2 = 0x0008B061,
+        .dram_tpr3 = 0xB4787896,
+        .dram_tpr4 = 0x0,
+        .dram_tpr5 = 0x48484848,
+        .dram_tpr6 = 0x48,
+        .dram_tpr7 = 0x1621121e,
+        .dram_tpr8 = 0x0,
+        .dram_tpr9 = 0x0,
+        .dram_tpr10 = 0x0,
+        .dram_tpr11 = 0x00420000,
+        .dram_tpr12 = 0x00000048,
+        .dram_tpr13 = 0x34010100,
+};
+
+void clean_syterkit_data(void) {
+    /* Disable MMU, data cache, instruction cache, interrupts */
+    arm32_mmu_disable();
+    printk(LOG_LEVEL_INFO, "disable mmu ok...\n");
+    arm32_dcache_disable();
+    printk(LOG_LEVEL_INFO, "disable dcache ok...\n");
+    arm32_icache_disable();
+    printk(LOG_LEVEL_INFO, "disable icache ok...\n");
+    arm32_interrupt_disable();
+    printk(LOG_LEVEL_INFO, "free interrupt ok...\n");
+}
+
+void rtc_set_vccio_det_spare(void) {
+    u32 val = 0;
+    val = readl(SUNXI_RTC_BASE + 0x1f4);
+    val &= ~(0xff << 4);
+    val |= (VCCIO_THRESHOLD_VOLTAGE_2_9 | FORCE_DETECTER_OUTPUT);
+    val &= ~VCCIO_DET_BYPASS_EN;
+    writel(val, SUNXI_RTC_BASE + 0x1f4);
+}
+
+void sys_ldo_check(void) {
+    uint32_t reg_val = 0;
+    uint32_t roughtrim_val = 0, finetrim_val = 0;
+
+    /* reset */
+    reg_val = readl(CCU_AUDIO_CODEC_BGR_REG);
+    reg_val &= ~(1 << 16);
+    writel(reg_val, CCU_AUDIO_CODEC_BGR_REG);
+
+    sdelay(2);
+
+    reg_val |= (1 << 16);
+    writel(reg_val, CCU_AUDIO_CODEC_BGR_REG);
+
+    /* enable AUDIO gating */
+    reg_val = readl(CCU_AUDIO_CODEC_BGR_REG);
+    reg_val |= (1 << 0);
+    writel(reg_val, CCU_AUDIO_CODEC_BGR_REG);
+
+    /* enable pcrm CTRL */
+    reg_val = readl(ANA_PWR_RST_REG);
+    reg_val &= ~(1 << 0);
+    writel(reg_val, ANA_PWR_RST_REG);
+
+    /* read efuse */
+    printk(LOG_LEVEL_DEBUG, "Audio: avcc calibration\n");
+    reg_val = readl(SUNXI_SID_SRAM_BASE + 0x28);
+    roughtrim_val = (reg_val >> 0) & 0xF;
+    reg_val = readl(SUNXI_SID_SRAM_BASE + 0x24);
+    finetrim_val = (reg_val >> 16) & 0xFF;
+
+    if (roughtrim_val == 0 && finetrim_val == 0) {
+        reg_val = readl(SUNXI_VER_REG);
+        reg_val = (reg_val >> 0) & 0x7;
+        if (reg_val) {
+            printk(LOG_LEVEL_DEBUG, "Audio: chip not version A\n");
+        } else {
+            roughtrim_val = 0x5;
+            finetrim_val = 0x19;
+            printk(LOG_LEVEL_DEBUG, "Audio: chip version A\n");
+        }
+    }
+    reg_val = readl(AUDIO_POWER_REG);
+    reg_val &= ~(0xF << 8 | 0xFF);
+    reg_val |= roughtrim_val << 8 | finetrim_val;
+    writel(reg_val, AUDIO_POWER_REG);
+}

board/dongshanpi-aict/cli_test/CMakeLists.txt

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+# SPDX-License-Identifier: Apache-2.0
+
+add_syterkit_app(cli_test 
+    main.c
+)

board/dongshanpi-aict/cli_test/main.c

@@ -0,0 +1,41 @@
+/* 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 <cli.h>
+#include <cli_shell.h>
+#include <cli_termesc.h>
+
+extern sunxi_serial_t uart_dbg;
+
+msh_declare_command(helloworld);
+
+msh_define_help(helloworld, "display helloworld", "Usage: helloworld\n");
+int cmd_helloworld(int argc, const char **argv) {
+    printk(LOG_LEVEL_MUTE, "Hello World!\n");
+    return 0;
+}
+
+const msh_command_entry commands[] = {
+        msh_define_command(helloworld),
+        msh_command_end,
+};
+
+int main(void) {
+    sunxi_serial_init(&uart_dbg);
+
+    sunxi_clk_init();
+
+    printk(LOG_LEVEL_INFO, "Hello World!\n");
+
+    syterkit_shell_attach(commands);
+
+    return 0;
+}

board/dongshanpi-aict/eabi_compat.c

@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+void abort(void) {
+    while (1)
+        ;
+}
+
+int raise(int signum) {
+    return 0;
+}
+
+/* Dummy function to avoid linker complaints */
+void __aeabi_unwind_cpp_pr0(void) {
+}

board/dongshanpi-aict/fdt_cli/CMakeLists.txt

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
+add_syterkit_app(fdt_cli 
+    main.c
+)