1 files changed, 111 insertions, 0 deletions
diff --git a/bsps/arm/lpc32xx/nand/nand-mlc-write-blocks.c b/bsps/arm/lpc32xx/nand/nand-mlc-write-blocks.c
new file mode 100644
index 0000000000..cfcb9cd27e
--- /dev/null
+++ b/bsps/arm/lpc32xx/nand/nand-mlc-write-blocks.c
@@ -0,0 +1,111 @@
+/**
+ * @file
+ *
+ * @ingroup lpc32xx_nand_mlc
+ *
+ * @brief lpc32xx_mlc_write_blocks() implementation.
+ */
+
+/*
+ * Copyright (c) 2010-2011 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp/nand-mlc.h>
+
+#include <string.h>
+
+static const uint32_t ones_spare [MLC_LARGE_SPARE_WORD_COUNT] = {
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff,
+  0xffffffff
+};
+
+rtems_status_code lpc32xx_mlc_write_blocks(
+  uint32_t block_begin,
+  uint32_t block_end,
+  const void *src,
+  size_t src_size,
+  uint32_t *page_data_buffer
+)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  uint32_t pages_per_block = lpc32xx_mlc_pages_per_block();
+  uint32_t block_count = lpc32xx_mlc_block_count();
+  uint32_t page_size = lpc32xx_mlc_page_size();
+  uint32_t block = 0;
+  const uint8_t *current = src;
+  const uint8_t *last = current;
+  const uint8_t *end = current + src_size;
+
+  if (block_begin > block_end || block_end > block_count) {
+    return RTEMS_INVALID_ID;
+  }
+
+  for (block = block_begin; block != block_end; ++block) {
+    uint32_t page_begin = block * pages_per_block;
+    uint32_t page_end = page_begin + pages_per_block;
+    uint32_t page = 0;
+
+    sc = lpc32xx_mlc_erase_block_safe_3(block, page_begin, page_end);
+    if (sc != RTEMS_SUCCESSFUL) {
+      continue;
+    }
+
+    for (page = page_begin; page < page_end; ++page) {
+      uintptr_t remainder = (uintptr_t) end - (uintptr_t) current;
+      size_t delta = remainder < page_size ? remainder : page_size;
+
+      if (remainder > 0) {
+        memcpy(page_data_buffer, current, delta);
+        sc = lpc32xx_mlc_write_page_with_ecc(
+          page,
+          page_data_buffer,
+          ones_spare
+        );
+        if (sc != RTEMS_SUCCESSFUL) {
+          lpc32xx_mlc_erase_block(block);
+          lpc32xx_mlc_zero_pages(page_begin, page_end);
+          current = last;
+          continue;
+        }
+
+        current += delta;
+      } else {
+        goto done;
+      }
+    }
+
+    last = current;
+  }
+
+done:
+
+  if (current != end) {
+    return RTEMS_IO_ERROR;
+  }
+
+  return RTEMS_SUCCESSFUL;
+}