Add customisable EEPROM driver selection (#7274)
- uprintf -> dprintf - Fix atsam "vendor" eeprom. - Bump Kinetis K20x to 64 bytes, too. - Rollback Kinetis to 32 bytes as partitioning can only be done once. Add warning about changing the value. - Change RAM-backed "fake" EEPROM implementations to match eeconfig's current usage. - Add 24LC128 by request.
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6ff093efbe
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d13ada1162
20 changed files with 616 additions and 52 deletions
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@ -173,7 +173,7 @@ void eeprom_update_dword(uint32_t *Address, uint32_t Value) {
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}
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}
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void eeprom_read_block(void *buf, const void *addr, uint32_t len) {
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void eeprom_read_block(void *buf, const void *addr, size_t len) {
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const uint8_t *p = (const uint8_t *)addr;
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uint8_t * dest = (uint8_t *)buf;
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while (len--) {
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@ -181,7 +181,7 @@ void eeprom_read_block(void *buf, const void *addr, uint32_t len) {
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}
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}
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void eeprom_write_block(const void *buf, void *addr, uint32_t len) {
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void eeprom_write_block(const void *buf, void *addr, size_t len) {
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uint8_t * p = (uint8_t *)addr;
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const uint8_t *src = (const uint8_t *)buf;
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while (len--) {
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@ -189,7 +189,7 @@ void eeprom_write_block(const void *buf, void *addr, uint32_t len) {
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}
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}
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void eeprom_update_block(const void *buf, void *addr, uint32_t len) {
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void eeprom_update_block(const void *buf, void *addr, size_t len) {
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uint8_t * p = (uint8_t *)addr;
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const uint8_t *src = (const uint8_t *)buf;
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while (len--) {
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@ -50,7 +50,17 @@
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// (aligned to 2 or 4 byte boundaries) has twice the endurance
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// compared to writing 8 bit bytes.
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//
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# define EEPROM_SIZE 32
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# ifndef EEPROM_SIZE
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# define EEPROM_SIZE 32
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# endif
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/*
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^^^ Here be dragons:
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NXP AppNote AN4282 section 3.1 states that partitioning must only be done once.
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Once EEPROM partitioning is done, the size is locked to this initial configuration.
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Attempts to modify the EEPROM_SIZE setting may brick your board.
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*/
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// Writing unaligned 16 or 32 bit data is handled automatically when
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// this is defined, but at a cost of extra code size. Without this,
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@ -517,8 +527,11 @@ void eeprom_write_block(const void *buf, void *addr, uint32_t len) {
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#else
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// No EEPROM supported, so emulate it
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# define EEPROM_SIZE 32
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static uint8_t buffer[EEPROM_SIZE];
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# ifndef EEPROM_SIZE
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# include "eeconfig.h"
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# define EEPROM_SIZE (((EECONFIG_SIZE+3)/4)*4) // based off eeconfig's current usage, aligned to 4-byte sizes, to deal with LTO
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# endif
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__attribute__((aligned(4))) static uint8_t buffer[EEPROM_SIZE];
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uint8_t eeprom_read_byte(const uint8_t *addr) {
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uint32_t offset = (uint32_t)addr;
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@ -540,7 +553,7 @@ uint32_t eeprom_read_dword(const uint32_t *addr) {
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return eeprom_read_byte(p) | (eeprom_read_byte(p + 1) << 8) | (eeprom_read_byte(p + 2) << 16) | (eeprom_read_byte(p + 3) << 24);
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}
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void eeprom_read_block(void *buf, const void *addr, uint32_t len) {
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void eeprom_read_block(void *buf, const void *addr, size_t len) {
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const uint8_t *p = (const uint8_t *)addr;
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uint8_t * dest = (uint8_t *)buf;
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while (len--) {
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@ -562,7 +575,7 @@ void eeprom_write_dword(uint32_t *addr, uint32_t value) {
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eeprom_write_byte(p, value >> 24);
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}
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void eeprom_write_block(const void *buf, void *addr, uint32_t len) {
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void eeprom_write_block(const void *buf, void *addr, size_t len) {
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uint8_t * p = (uint8_t *)addr;
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const uint8_t *src = (const uint8_t *)buf;
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while (len--) {
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@ -589,7 +602,7 @@ void eeprom_update_dword(uint32_t *addr, uint32_t value) {
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eeprom_write_byte(p, value >> 24);
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}
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void eeprom_update_block(const void *buf, void *addr, uint32_t len) {
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void eeprom_update_block(const void *buf, void *addr, size_t len) {
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uint8_t * p = (uint8_t *)addr;
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const uint8_t *src = (const uint8_t *)buf;
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while (len--) {
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