Add SPI 25xx EEPROM support. (#8780)

1 files changed, 19 insertions, 11 deletions

diff --git a/drivers/eeprom/eeprom_i2c.c b/drivers/eeprom/eeprom_i2c.c
index 03dbc5e51..88be2be06 100644
--- a/drivers/eeprom/eeprom_i2c.c
+++ b/drivers/eeprom/eeprom_i2c.c
@@ -50,7 +50,7 @@ static inline void init_i2c_if_required(void) {
 }
 
 static inline void fill_target_address(uint8_t *buffer, const void *addr) {
-    intptr_t p = (intptr_t)addr;
+    uintptr_t p = (uintptr_t)addr;
     for (int i = 0; i < EXTERNAL_EEPROM_ADDRESS_SIZE; ++i) {
         buffer[EXTERNAL_EEPROM_ADDRESS_SIZE - 1 - i] = p & 0xFF;
         p >>= 8;
@@ -60,11 +60,19 @@ static inline void fill_target_address(uint8_t *buffer, const void *addr) {
 void eeprom_driver_init(void) {}
 
 void eeprom_driver_erase(void) {
+#ifdef CONSOLE_ENABLE
+    uint32_t start = timer_read32();
+#endif
+
     uint8_t buf[EXTERNAL_EEPROM_PAGE_SIZE];
     memset(buf, 0x00, EXTERNAL_EEPROM_PAGE_SIZE);
-    for (intptr_t addr = 0; addr < EXTERNAL_EEPROM_BYTE_COUNT; addr += EXTERNAL_EEPROM_PAGE_SIZE) {
-        eeprom_write_block(buf, (void *)addr, EXTERNAL_EEPROM_PAGE_SIZE);
+    for (uint32_t addr = 0; addr < EXTERNAL_EEPROM_BYTE_COUNT; addr += EXTERNAL_EEPROM_PAGE_SIZE) {
+        eeprom_write_block(buf, (void *)(uintptr_t)addr, EXTERNAL_EEPROM_PAGE_SIZE);
     }
+
+#ifdef CONSOLE_ENABLE
+    dprintf("EEPROM erase took %ldms to complete\n", ((long)(timer_read32() - start)));
+#endif
 }
 
 void eeprom_read_block(void *buf, const void *addr, size_t len) {
@@ -72,8 +80,8 @@ void eeprom_read_block(void *buf, const void *addr, size_t len) {
     fill_target_address(complete_packet, addr);
 
     init_i2c_if_required();
-    i2c_transmit(EXTERNAL_EEPROM_I2C_ADDRESS((intptr_t)addr), complete_packet, EXTERNAL_EEPROM_ADDRESS_SIZE, 100);
-    i2c_receive(EXTERNAL_EEPROM_I2C_ADDRESS((intptr_t)addr), buf, len, 100);
+    i2c_transmit(EXTERNAL_EEPROM_I2C_ADDRESS((uintptr_t)addr), complete_packet, EXTERNAL_EEPROM_ADDRESS_SIZE, 100);
+    i2c_receive(EXTERNAL_EEPROM_I2C_ADDRESS((uintptr_t)addr), buf, len, 100);
 
 #ifdef DEBUG_EEPROM_OUTPUT
     dprintf("[EEPROM R] 0x%04X: ", ((int)addr));
@@ -85,14 +93,14 @@ void eeprom_read_block(void *buf, const void *addr, size_t len) {
 }
 
 void eeprom_write_block(const void *buf, void *addr, size_t len) {
-    uint8_t  complete_packet[EXTERNAL_EEPROM_ADDRESS_SIZE + EXTERNAL_EEPROM_PAGE_SIZE];
-    uint8_t *read_buf    = (uint8_t *)buf;
-    intptr_t target_addr = (intptr_t)addr;
+    uint8_t   complete_packet[EXTERNAL_EEPROM_ADDRESS_SIZE + EXTERNAL_EEPROM_PAGE_SIZE];
+    uint8_t * read_buf    = (uint8_t *)buf;
+    uintptr_t target_addr = (uintptr_t)addr;
 
     init_i2c_if_required();
     while (len > 0) {
-        intptr_t page_offset  = target_addr % EXTERNAL_EEPROM_PAGE_SIZE;
-        int      write_length = EXTERNAL_EEPROM_PAGE_SIZE - page_offset;
+        uintptr_t page_offset  = target_addr % EXTERNAL_EEPROM_PAGE_SIZE;
+        int       write_length = EXTERNAL_EEPROM_PAGE_SIZE - page_offset;
         if (write_length > len) {
             write_length = len;
         }
@@ -110,7 +118,7 @@ void eeprom_write_block(const void *buf, void *addr, size_t len) {
         dprintf("\n");
 #endif  // DEBUG_EEPROM_OUTPUT
 
-        i2c_transmit(EXTERNAL_EEPROM_I2C_ADDRESS((intptr_t)addr), complete_packet, EXTERNAL_EEPROM_ADDRESS_SIZE + write_length, 100);
+        i2c_transmit(EXTERNAL_EEPROM_I2C_ADDRESS((uintptr_t)addr), complete_packet, EXTERNAL_EEPROM_ADDRESS_SIZE + write_length, 100);
         wait_ms(EXTERNAL_EEPROM_WRITE_TIME);
 
         read_buf += write_length;