LPC176X flash_api.h implementation

For LPC176X (LPC1768/LPC1769) the flash driver has been implemented according to the CMSIS-PACK Keil.LPC1700_DFP.2.3.0 driver with the following changes in FlashPrg.c:
1. EraseChip() function removed (not used by flash_api)
2. Clock reconfiguration removed and clock value taken from function parameter to avoid unexpected behavior.

Full patch of FlashPrg.c:
--- Keil.LPC1700_DFP.2.3.0\Flash\LPC_IAP\FlashPrg_orig.c	2016-12-08 13:10:10.000000000 +0200
+++ Keil.LPC1700_DFP.2.3.0\Flash\LPC_IAP\FlashPrg.c	2017-04-11 20:02:37.000000000 +0200
@@ -191,90 +191,15 @@
  *                    fnc:  Function Code (1 - Erase, 2 - Program, 3 - Verify)
  *    Return Value:   0 - OK,  1 - Failed
  */
 
 int Init (unsigned long adr, unsigned long clk, unsigned long fnc) {
 
-#if defined LPC1XXX  || defined LPC11U6X
-  CCLK       = 12000;                          // 12MHz Internal RC Oscillator
+	CCLK = clk / 1000;                           // CCLK value is in kHz, clk in Hz
 
-  MAINCLKSEL = 0;                              // Select Internal RC Oscillator
-  MAINCLKUEN = 1;                              // Update Main Clock Source
-  MAINCLKUEN = 0;                              // Toggle Update Register
-  MAINCLKUEN = 1;
-//  while (!(MAINCLKUEN & 1));                   // Wait until updated
-  MAINCLKDIV = 1;                              // Set Main Clock divider to 1
-
-  MEMMAP     = 0x02;                           // User Flash Mode
-#endif
-
-#ifdef LPC17XX
-  IAP.stat =  0;                               // Note: Some Bootloader versions don't set the status if this command is executed
-  IAP.cmd  = 54;                               // Read Part ID
-  IAP_Call (&IAP.cmd, &IAP.stat);              // Call IAP Command
-  if (IAP.stat) return (1);                    // Command Failed
-
-  switch ((IAP.res[0] >> 24) & 0xFF) {
-    case 0x25:
-                                               // Part ID LPC1759 = 0x25113737
-                                               // Part ID LPC1758 = 0x25013F37
-                                               // Part ID LPC1756 = 0x25011723
-                                               // Part ID LPC1754 = 0x25011722
-                                               // Part ID LPC1752 = 0x25001121
-                                               // Part ID LPC1751 = 0x25001118 / 0x25001110
-    case 0x26:
-                                               // Part ID LPC1769 = 0x26113F37
-                                               // Part ID LPC1768 = 0x26013F37
-                                               // Part ID LPC1767 = 0x26012837
-                                               // Part ID LPC1766 = 0x26013F33
-                                               // Part ID LPC1765 = 0x26013733
-                                               // Part ID LPC1764 = 0x26011922
-      CCLK  =  4000;                           //  4MHz Internal RC Oscillator
-      break;
-    case 0x27:
-                                               // Part ID LPC1778 = 0x27193F47
-                                               // Part ID LPC1777 = 0x27193747
-                                               // Part ID LPC1776 = 0x27191F43
-                                               // Part ID LPC1774 = 0x27011132
-                                               // Part ID LPC1772 = 0x27011121
-    case 0x20:  // found out during test
-    case 0x28:
-                                               // Part ID LPC1788 = 0x281D3F47
-                                               // Part ID LPC1787 = 0x281D3747
-                                               // Part ID LPC1786 = 0x281D1F43
-                                               // Part ID LPC1785 = 0x281D1743
-    case 0x48:                                 // Part ID LPC4088 = 0x481D3F47
-    case 0x47:                                 // Part ID LPC4078 = 0x47193F47
-                                               // Part ID LPC4076 = 0x47191F43
-                                               // Part ID LPC4074 = 0x47011132
-      CCLK  = 12000;                           // 12MHz Internal RC Oscillator
-      break;
-    default:
-      CCLK  =  4000;                           //  4MHz Internal RC Oscillator
-  }
-
-  CLKSRCSEL = 0x00;                            // sysclk = IRC
-
-  PLL0CON  = 0x00;                             // Disable PLL (use Oscillator)
-  PLL0FEED = 0xAA;                             // Feed Sequence Part #1
-  PLL0FEED = 0x55;                             // Feed Sequence Part #2
-
-  switch ((IAP.res[0] >> 24) & 0xFF) {
-    case 0x27:                                 // LPC177x
-    case 0x20:                                 // LPC178x
-    case 0x28:                                 // LPC178x
-    case 0x48:                                 // LPC407x
-    case 0x47:                                 // LPC408x
-      CCLKSEL  = 0x01;                         // use Sysclk devided by 1 for CPU
-      break;
-    default:
-      CCLKSEL  = 0x00;                         // CPU clk divider is 1
-  }
-
   MEMMAP   = 0x01;                             // User Flash Mode
-#endif
 
   return (0);
 }
 
 
 /*
@@ -283,37 +208,12 @@
  *    Return Value:   0 - OK,  1 - Failed
  */
 
 int UnInit (unsigned long fnc) {
   return (0);
 }
-
-
-/*
- *  Erase complete Flash Memory
- *    Return Value:   0 - OK,  1 - Failed
- */
-
-int EraseChip (void) {
-
-  IAP.cmd    = 50;                             // Prepare Sector for Erase
-  IAP.par[0] = 0;                              // Start Sector
-  IAP.par[1] = END_SECTOR;                     // End Sector
-  IAP_Call (&IAP.cmd, &IAP.stat);              // Call IAP Command
-  if (IAP.stat) return (1);                    // Command Failed
-
-  IAP.cmd    = 52;                             // Erase Sector
-  IAP.par[0] = 0;                              // Start Sector
-  IAP.par[1] = END_SECTOR;                     // End Sector
-  IAP.par[2] = CCLK;                           // CCLK in kHz
-  IAP_Call (&IAP.cmd, &IAP.stat);              // Call IAP Command
-  if (IAP.stat) return (1);                    // Command Failed
-
-  return (0);                                  // Finished without Errors
-}
-
 
 /*
  *  Erase Sector in Flash Memory
  *    Parameter:      adr:  Sector Address
  *    Return Value:   0 - OK,  1 - Failed
  */

Author: 0x6d61726b

targets/TARGET_NXP/TARGET_LPC176X/device/flash_api.c

@@ -0,0 +1,66 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "flash_api.h"
+#include "flash_data.h"
+#include "platform/mbed_critical.h"
+
+// This file is automatically generated
+
+#if DEVICE_FLASH
+
+// This is a flash algo binary blob. It is PIC (position independent code) that should be stored in RAM
+static uint32_t FLASH_ALGO[] = {
+    0x28100b00, 0x210ed302, 0x00d0eb01, 0xf44f4770, 0xfbb1707a, 0x4933f0f0, 0x60084449, 0x20014932,
+    0x20006408, 0x20004770, 0xe92d4770, 0xf7ff41f0, 0x4d2effe7, 0x444d4604, 0xe9c52032, 0xf1050400,
+    0x4e2b0114, 0x4628460f, 0x47b060ac, 0xb9686968, 0xe9c52034, 0x48230400, 0x444860ac, 0x68004639,
+    0x462860e8, 0x696847b0, 0xd0002800, 0xe8bd2001, 0xe92d81f0, 0x461441f0, 0xd10e0006, 0x0100e9d4,
+    0xe9d44408, 0x44111202, 0x69214408, 0x69614408, 0x69a14408, 0x42404408, 0x463061e0, 0xffb0f7ff,
+    0x21324d12, 0x4f12444d, 0x1000e9c5, 0x0114f105, 0x468860a8, 0x47b84628, 0xb9806968, 0xe9c52033,
+    0xf44f0600, 0xe9c56080, 0x48064002, 0x44484641, 0x61286800, 0x47b84628, 0x28006968, 0x2001d0c7,
+    0x0000e7c5, 0x00000004, 0x400fc000, 0x00000008, 0x1fff1ff1, 0x00000000, 0x00000000, 0x00000000,
+    0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000
+};
+
+static const flash_algo_t flash_algo_config = {
+    .init = 0xf,
+    .uninit = 0x27,
+    .erase_sector = 0x2b,
+    .program_page = 0x73,
+    .static_base = 0xf4,
+    .algo_blob = FLASH_ALGO
+};
+
+static const sector_info_t sectors_info[] = {
+    {0x0, 0x1000},
+    {0x10000, 0x8000},
+};
+
+static const flash_target_config_t flash_target_config = {
+    .page_size  = 0x400,
+    .flash_start = 0x0,
+    .flash_size = 0x80000,
+    .sectors = sectors_info,
+    .sector_info_count = sizeof(sectors_info) / sizeof(sector_info_t)
+};
+
+void flash_set_target_config(flash_t *obj)
+{
+    obj->flash_algo = &flash_algo_config;
+    obj->target_config = &flash_target_config;
+}
+
+#endif