0033-RP2040-Start-adding-Flash-support.patch

From 309fe15100a5de30a9ea01b26aa9db7b97e25991 Mon Sep 17 00:00:00 2001
From: giulcioffi <g.cioffi@arduino.cc>
Date: Thu, 25 Feb 2021 18:44:50 +0100
Subject: [PATCH 033/204] RP2040: Start adding Flash support

---
 .../TARGET_RP2040/flash_api.c                 | 107 ++++++++++++++++++
 targets/targets.json                          |   2 +
 2 files changed, 109 insertions(+)
 create mode 100644 targets/TARGET_RASPBERRYPI/TARGET_RP2040/flash_api.c

diff --git a/targets/TARGET_RASPBERRYPI/TARGET_RP2040/flash_api.c b/targets/TARGET_RASPBERRYPI/TARGET_RP2040/flash_api.c
new file mode 100644
index 0000000000..85e8f5c81f
--- /dev/null
+++ b/targets/TARGET_RASPBERRYPI/TARGET_RP2040/flash_api.c
@@ -0,0 +1,107 @@
+/******************************************************************************
+ * INCLUDE
+ ******************************************************************************/
+
+#include "mbed_assert.h"
+#include "mbed_critical.h"
+#include "hal/flash_api.h"
+#include "flash.h"
+//#include "hal/lp_ticker_api.h"
+//#include "PeripheralPins.h"
+#include "PeripheralNames.h"
+
+/******************************************************************************
+ * CONSTANT
+ ******************************************************************************/
+
+
+
+/******************************************************************************
+ * FUNCTION DEFINITION
+ ******************************************************************************/
+
+int32_t flash_init(flash_t *obj)
+{
+    (void)(obj);
+
+    return 0;
+}
+
+int32_t flash_free(flash_t *obj)
+{
+    (void)(obj);
+
+    uint32_t address = 0;
+
+    for (int i = 0; i < PICO_FLASH_SIZE_BYTES/FLASH_SECTOR_SIZE; i++ ) {
+      flash_range_erase(address, FLASH_SECTOR_SIZE);
+      address = address + FLASH_SECTOR_SIZE;
+    }
+
+    return 0;
+}
+
+int32_t flash_erase_sector(flash_t *obj, uint32_t address)
+{
+    (void)(obj);
+
+    flash_range_erase(address, FLASH_SECTOR_SIZE);
+
+    return 0;
+}
+
+int32_t flash_read(flash_t *obj, uint32_t address, uint8_t *data, uint32_t size)
+{
+    (void)(obj);
+
+    for (int i = 0; i < size; i++) {
+        data = (const uint8_t *) (XIP_BASE + address + i);
+        data++;
+    }
+    return 0;
+}
+
+int32_t flash_program_page(flash_t *obj, uint32_t address, const uint8_t *data, uint32_t size)
+{
+    (void)(obj);
+
+    flash_range_program(address, data, size);
+
+    return 0;
+
+}
+
+uint32_t flash_get_size(const flash_t *obj)
+{
+    (void)(obj);
+
+    return PICO_FLASH_SIZE_BYTES;
+}
+
+uint32_t flash_get_sector_size(const flash_t *obj, uint32_t address)
+{
+    (void)(obj);
+
+    return FLASH_SECTOR_SIZE;
+}
+
+uint32_t flash_get_page_size(const flash_t *obj)
+{
+    (void)(obj);
+
+    return FLASH_PAGE_SIZE;
+}
+
+uint32_t flash_get_start_address(const flash_t *obj)
+{
+    return XIP_BASE;
+
+}
+
+uint8_t flash_get_erase_value(const flash_t *obj)
+{
+    (void)obj;
+
+    return 0xFF;
+
+}
\ No newline at end of file
diff --git a/targets/targets.json b/targets/targets.json
index 0d696c3196..ba6bcb6946 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -9406,6 +9406,7 @@
     },
     "RP2040": {
         "inherits": ["Target"],
+        "components_add": ["FLASHIAP"],
         "core": "Cortex-M0+",
         "supported_toolchains": ["GCC_ARM"],
         "extra_labels": [
@@ -9420,6 +9421,7 @@
         },
         "device_has": [
             "ANALOGIN",
+            "FLASH",
             "I2C",
             "INTERRUPTIN",
             "PORT_IN",
-- 
2.39.1