[feat][flash] add flash read write demo

drivers/lhal/src/bflb_l1c.c

@@ -70,9 +70,8 @@ void bflb_l1c_icache_disable(void)
     L1C_Cache_Enable_Set(0x0f);
 }
 
-ATTR_TCM_SECTION void bflb_l1c_icache_invalid_all(void)
+void bflb_l1c_icache_invalid_all(void)
 {
-    L1C_Cache_Flush();
 }
 
 void bflb_l1c_dcache_enable(void)
@@ -89,21 +88,21 @@ void bflb_l1c_dcache_clean_all(void)
 
 void bflb_l1c_dcache_invalidate_all(void)
 {
+    L1C_Cache_Flush();
 }
 
 void bflb_l1c_dcache_clean_invalidate_all(void)
 {
+    L1C_Cache_Flush();
 }
 
 void bflb_l1c_dcache_clean_range(void *addr, uint32_t size)
 {
 }
 
-void bflb_l1c_dcache_invalidate_range(void *addr, uint32_t size)
+ATTR_TCM_SECTION void bflb_l1c_dcache_invalidate_range(void *addr, uint32_t size)
 {
+    L1C_Cache_Flush();
 }
 
-void bflb_l1c_dcache_clean_invalidate_range(void *addr, uint32_t size)
-{
-}
 #endif

examples/peripherals/flash/flash_secure_read_write/CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.15)
+
+include(proj.conf)
+
+find_package(bouffalo_sdk REQUIRED HINTS $ENV{BL_SDK_BASE})
+
+sdk_set_main_file(main.c)
+
+project(flash_secure_read_write)

examples/peripherals/flash/flash_xip_read_write/CMakeLists.txt

@@ -6,4 +6,4 @@ find_package(bouffalo_sdk REQUIRED HINTS $ENV{BL_SDK_BASE})
 
 sdk_set_main_file(main.c)
 
-project(flash_secure_read)
+project(flash_xip_read_write)

examples/peripherals/flash/flash_xip_read_write/Makefile

@@ -0,0 +1,13 @@
+SDK_DEMO_PATH ?= .
+BL_SDK_BASE ?= $(SDK_DEMO_PATH)/../../../..
+
+export BL_SDK_BASE
+
+CHIP ?= bl616
+BOARD ?= bl616dk
+CROSS_COMPILE ?= riscv64-unknown-elf-
+
+# add custom cmake definition
+#cmake_definition+=-Dxxx=sss
+
+include $(BL_SDK_BASE)/project.build

examples/peripherals/flash/flash_xip_read_write/main.c

@@ -0,0 +1,51 @@
+#include "bflb_flash.h"
+#include "bflb_l1c.h"
+#include "board.h"
+
+#define FLASH_TEST_SIZE 1 * 1024 * 1024
+
+int main(void)
+{
+    board_init();
+
+    uint8_t write_buf[256];
+    uint8_t *read_buf;
+
+    for (uint16_t i = 0; i < 256; i++) {
+        write_buf[i] = i;
+    }
+
+    for (uint32_t i = 1; i < (FLASH_TEST_SIZE / 1024); i++) {
+        printf("test addr:%08x\r\n", (0x00010000 + (i - 1) * 1024));
+        /* erase 0x00010000 4k flash */
+        bflb_flash_erase(0x00010000 + (i - 1) * 1024, i * 1024);
+
+        /* read 0x00010000 flash data */
+        read_buf = (uint8_t *)(FLASH_XIP_BASE - 0x2000 + 0x00010000 + (i - 1) * 1024);
+        bflb_l1c_dcache_invalidate_range(read_buf, 256);
+        for (uint16_t j = 0; j < 256; j++) {
+            if (read_buf[j] != 0xff) {
+                printf("flash test1 fail at %d, expect:%d but with %d\r\n", j, 0xff, read_buf[j]);
+                while (1) {
+                }
+            }
+        }
+        /* write 0x00010000 flash data */
+        bflb_flash_write(0x00010000 + (i - 1) * 1024, write_buf, sizeof(write_buf));
+
+        /* read 0x00010000 flash data */
+        read_buf = (uint8_t *)(FLASH_XIP_BASE - 0x2000 + 0x00010000 + (i - 1) * 1024);
+        bflb_l1c_dcache_invalidate_range(read_buf, 256);
+        for (uint16_t j = 0; j < 256; j++) {
+            if (read_buf[j] != write_buf[j]) {
+                printf("flash test2 fail at %d, expect:%d but with %d\r\n", j, write_buf[j], read_buf[j]);
+                while (1) {
+                }
+            }
+        }
+    }
+
+    printf("flash test success\r\n");
+    while (1) {
+    }
+}

examples/peripherals/flash/flash_xip_read_write/proj.conf

@@ -0,0 +1 @@
+#set(CONFIG_XXX 1)