LPC1768 IAP Fix #4993
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| * 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, | ||
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| * limitations under the License. | ||
| */ | ||
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| #include "mbed_critical.h" | ||
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| #if DEVICE_FLASH | ||
| #include "flash_api.h" | ||
| #include "mbed_assert.h" | ||
| #include "cmsis.h" | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
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| #define MEMMAP (*((volatile unsigned long *) 0x400FC040)) | ||
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| #define PLL0CON (*((volatile unsigned long *) 0x400FC080)) | ||
| #define PLL0CFG (*((volatile unsigned long *) 0x400FC084)) | ||
| #define PLL0STAT (*((volatile unsigned long *) 0x400FC088)) | ||
| #define PLL0FEED (*((volatile unsigned long *) 0x400FC08C)) | ||
| #define CCLKSEL (*((volatile unsigned long *) 0x400FC104)) | ||
| #define CLKSRCSEL (*((volatile unsigned long *) 0x400FC10C)) | ||
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| #define STACK_SIZE 64 // Stack Size | ||
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| #define SET_VALID_CODE 1 // Set Valid User Code Signature | ||
| /* IAP Call */ | ||
| typedef void (*IAP_Entry) (unsigned long *cmd, unsigned long *stat); | ||
| #define IAP_Call ((IAP_Entry) 0x1FFF1FF1) | ||
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| typedef struct flash_s flash_t; | ||
| unsigned long CCLK; // CCLK in kHz | ||
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| struct sIAP { // IAP Structure | ||
| unsigned long cmd; // Command | ||
| unsigned long par[4]; // Parameters | ||
| unsigned long stat; // Status | ||
| unsigned long res[2]; // Result | ||
| } IAP; | ||
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| /* | ||
| * Get Sector Number | ||
| * Parameter: address: Sector Address | ||
| * Return Value: Sector Number | ||
| */ | ||
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| unsigned long GetSecNum (unsigned long address) { | ||
| unsigned long n; | ||
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| n = address >> 12; // 4kB Sector | ||
| if (n >= 0x10) { | ||
| n = 0x0E + (n >> 3); // 32kB Sector | ||
| } | ||
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| return (n); // Sector Number | ||
| } | ||
| int32_t flash_init(flash_t *obj) | ||
| { | ||
| CCLK = SystemCoreClock / 1000; // CCLK value is in kHz, clk in Hz | ||
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| MEMMAP = 0x01; // User Flash Mode | ||
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| return (0); | ||
| } | ||
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| int32_t flash_free(flash_t *obj) | ||
| { | ||
| return 0; | ||
| } | ||
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| int32_t flash_erase_sector(flash_t *obj, uint32_t address) | ||
| { | ||
| unsigned long n; | ||
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| n = GetSecNum(address); // Get Sector Number | ||
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| IAP.cmd = 50; // Prepare Sector for Erase | ||
| IAP.par[0] = n; // Start Sector | ||
| IAP.par[1] = n; // End Sector | ||
| IAP_Call (&IAP.cmd, &IAP.stat); // Call IAP Command | ||
| if (IAP.stat) return (1); // Command Failed | ||
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| IAP.cmd = 52; // Erase Sector | ||
| IAP.par[0] = n; // Start Sector | ||
| IAP.par[1] = n; // 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 | ||
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| return (0); // Finished without Errors | ||
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| } | ||
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| /* IAP Call */ | ||
| typedef void (*IAP_Entry) (unsigned long *cmd, unsigned long *stat); | ||
| #define IAP_Call ((IAP_Entry) 0x1FFF1FF1) | ||
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| int32_t flash_program_page(flash_t *obj, uint32_t address, | ||
| const uint8_t *datain, uint32_t size) | ||
| { | ||
| uint8_t *data; | ||
| unsigned long n; | ||
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| if ((unsigned long)datain%4==0)//word boundary | ||
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There was a problem hiding this comment. https://docs.mbed.com/docs/mbed-os-handbook/en/latest/cont/code_style/ 2 spaces instead of 4? Please read the above coding style and align this code |
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| { | ||
| data = datain; | ||
| } | ||
| else | ||
| { | ||
| data = malloc(size); | ||
| memcpy(data,datain,size); | ||
| } | ||
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| #if SET_VALID_CODE != 0 // Set valid User Code Signature | ||
| if (address == 0) { // Check for Vector Table | ||
| n = *((unsigned long *)(data + 0x00)) + | ||
| *((unsigned long *)(data + 0x04)) + | ||
| *((unsigned long *)(data + 0x08)) + | ||
| *((unsigned long *)(data + 0x0C)) + | ||
| *((unsigned long *)(data + 0x10)) + | ||
| *((unsigned long *)(data + 0x14)) + | ||
| *((unsigned long *)(data + 0x18)); | ||
| *((unsigned long *)(data + 0x1C)) = 0 - n; // Signature at Reserved Vector | ||
| } | ||
| #endif | ||
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| n = GetSecNum(address); // Get Sector Number | ||
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| IAP.cmd = 50; // Prepare Sector for Write | ||
| IAP.par[0] = n; // Start Sector | ||
| IAP.par[1] = n; // End Sector | ||
| IAP_Call (&IAP.cmd, &IAP.stat); // Call IAP Command | ||
| if (IAP.stat) return (1); // Command Failed | ||
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| IAP.cmd = 51; // Copy RAM to Flash | ||
| IAP.par[0] = address; // Destination Flash Address | ||
| IAP.par[1] = (unsigned long)data; // Source RAM Address | ||
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| IAP.par[2] = 1024; // Fixed Page Size | ||
| IAP.par[3] = CCLK; // CCLK in kHz | ||
| IAP_Call (&IAP.cmd, &IAP.stat); // Call IAP Command | ||
| if(data !=datain)//We allocated our own memory | ||
| { | ||
| free(data); | ||
| } | ||
| if (IAP.stat) return (1); // Command Failed | ||
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| return (0); // Finished without Errors | ||
| } | ||
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| uint32_t flash_get_sector_size(const flash_t *obj, uint32_t address) | ||
| { | ||
| if(address < flash_get_start_address(obj) || address >= flash_get_start_address(obj) +flash_get_size(obj)) | ||
| { | ||
| return MBED_FLASH_INVALID_SIZE; | ||
| } | ||
| if(GetSecNum(address)>=0x10) | ||
| { | ||
| return 0x8000; | ||
| } | ||
| else | ||
| { | ||
| return 0x1000; | ||
| } | ||
| } | ||
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| uint32_t flash_get_page_size(const flash_t *obj) | ||
| { | ||
| return 1024; | ||
| } | ||
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| uint32_t flash_get_start_address(const flash_t *obj) | ||
| { | ||
| return LPC_FLASH_BASE; | ||
| } | ||
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| uint32_t flash_get_size(const flash_t *obj) | ||
| { | ||
| return 0x80000; | ||
| } | ||
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| #endif | ||
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