partition working on r3

uboot-compiler/freeRTOS_example4/FreeRTOS/Demo/CORTEX_A72_64-bit_Raspberrypi4/uart/Makefile

@@ -11,7 +11,8 @@ CFLAGS = -mcpu=cortex-a72 \
          -I$(INCLUDEPATH2) \
          -I$(INCLUDEPATH3) \
          -I$(INCLUDEPATH4) \
-         -I$(INCLUDEPATH5)
+         -I$(INCLUDEPATH5) \
+         -D__LINUX__
 BUILTIN_OPS = -fno-builtin-memset
 ASMFLAGS = -mcpu=cortex-a72
 

uboot-compiler/freeRTOS_example4/FreeRTOS/Demo/CORTEX_A72_64-bit_Raspberrypi4/uart/src/main.c

@@ -56,25 +56,64 @@ void interval_func(TimerHandle_t pxTimer)
 }
 /*-----------------------------------------------------------*/
 
+#define ARM_IO_BASE   0x3F000000
+#define GPIO_BASE     (ARM_IO_BASE + 0x200000)
+
+#define GPIO_FSEL0    (GPIO_BASE + 0x00)
+
+#define GPIO_SET0     (GPIO_BASE + 0x1C)
+#define GPIO_CLR0     (GPIO_BASE + 0x28)
+
+
+typedef unsigned int uint;
+
+//-------------------------------------------------------------------------
+void ledblink()
+{
+  const uint pin = 17;
+
+  uint reg1 = GPIO_FSEL0 + ((pin / 10) << 2);
+  uint shift = (pin % 10) * 3;
+
+  uint val = *(volatile uint *)reg1;
+  val &= ~(7 << shift);
+  val |=  (1 << shift);
+  *(volatile uint *)reg1 = val;
+
+  uint reg_offset = (pin >> 5) << 2; // (pin / 32) * 4;
+
+  register volatile uint * reg_offset0 = (uint *)(GPIO_CLR0 + reg_offset);
+  register volatile uint * reg_offset1 = (uint *)(GPIO_SET0 + reg_offset);
+
+  register uint reg_mask = 1 << (pin & 0x1f); // % 32
+
+  while ( 1 )
+  {
+    *reg_offset0 = reg_mask;
+    *reg_offset1 = reg_mask;
+  }
+}
+
+
 void main(void)
 {
     TaskHandle_t task_a;
     
-    
-    uart_init();
-    uart_puts("\r\n****************************\r\n");
-    uart_puts("\r\n    FreeRTOS UART Sample\r\n");
-    uart_puts("\r\n****************************\r\n");
+    ledblink();
+    // uart_init();
+    // uart_puts("\r\n****************************\r\n");
+    // uart_puts("\r\n    FreeRTOS UART Sample\r\n");
+    // uart_puts("\r\n****************************\r\n");
 
-    xTaskCreate(TaskA, "Task A", 512, NULL, 0x10, &task_a);
+    // xTaskCreate(TaskA, "Task A", 512, NULL, 0x10, &task_a);
 
-    timer = xTimerCreate("print_every_10ms",(10 / portTICK_RATE_MS), pdTRUE, (void *)0, interval_func);
-    if(timer != NULL)
-    {
-        xTimerStart(timer, 0);
-    }
+    // timer = xTimerCreate("print_every_10ms",(10 / portTICK_RATE_MS), pdTRUE, (void *)0, interval_func);
+    // if(timer != NULL)
+    // {
+    //     xTimerStart(timer, 0);
+    // }
 
-    vTaskStartScheduler();
+    // vTaskStartScheduler();
 }
 /*-----------------------------------------------------------*/
 

uboot-compiler/freeRTOS_example4/FreeRTOS/Demo/CORTEX_A72_64-bit_Raspberrypi4/uart/src/uart.c

@@ -139,7 +139,7 @@ void uart_init(void)
     wait_linux();
 #endif
 
-    isr_register(IRQ_VC_UART, UART_PRIORITY, (0x1U << 0x3U), uart_isr);
+    uart_isr_register(uart_isr);
     return;
 }
 /*-----------------------------------------------------------*/