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.

1 files changed, 8 insertions, 5 deletions

diff --git a/tmk_core/common/arm_atsam/eeprom.c b/tmk_core/common/arm_atsam/eeprom.c
index 44a0bf4d76..a69f382823 100644
--- a/tmk_core/common/arm_atsam/eeprom.c
+++ b/tmk_core/common/arm_atsam/eeprom.c
@@ -16,9 +16,12 @@
 
 #include "eeprom.h"
 
-#define EEPROM_SIZE 32
+#ifndef EEPROM_SIZE
+#    include "eeconfig.h"
+#    define EEPROM_SIZE (((EECONFIG_SIZE+3)/4)*4)  // based off eeconfig's current usage, aligned to 4-byte sizes, to deal with LTO
+#endif
 
-static uint8_t buffer[EEPROM_SIZE];
+__attribute__((aligned(4))) static uint8_t buffer[EEPROM_SIZE];
 
 uint8_t eeprom_read_byte(const uint8_t *addr) {
     uintptr_t offset = (uintptr_t)addr;
@@ -40,7 +43,7 @@ uint32_t eeprom_read_dword(const uint32_t *addr) {
     return eeprom_read_byte(p) | (eeprom_read_byte(p + 1) << 8) | (eeprom_read_byte(p + 2) << 16) | (eeprom_read_byte(p + 3) << 24);
 }
 
-void eeprom_read_block(void *buf, const void *addr, uint32_t len) {
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
     const uint8_t *p    = (const uint8_t *)addr;
     uint8_t *      dest = (uint8_t *)buf;
     while (len--) {
@@ -62,7 +65,7 @@ void eeprom_write_dword(uint32_t *addr, uint32_t value) {
     eeprom_write_byte(p, value >> 24);
 }
 
-void eeprom_write_block(const void *buf, void *addr, uint32_t len) {
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
     uint8_t *      p   = (uint8_t *)addr;
     const uint8_t *src = (const uint8_t *)buf;
     while (len--) {
@@ -86,7 +89,7 @@ void eeprom_update_dword(uint32_t *addr, uint32_t value) {
     eeprom_write_byte(p, value >> 24);
 }
 
-void eeprom_update_block(const void *buf, void *addr, uint32_t len) {
+void eeprom_update_block(const void *buf, void *addr, size_t len) {
     uint8_t *      p   = (uint8_t *)addr;
     const uint8_t *src = (const uint8_t *)buf;
     while (len--) {