From a99f8fae7916bbc8888763d6b88caf6054477659 Mon Sep 17 00:00:00 2001
From: Michael Sparmann <theseven@rockbox.org>
Date: Sat, 13 Mar 2010 21:45:23 +0000
Subject: Nano2G NAND interleaved erase support

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25155 a1c6a512-1295-4272-9138-f99709370657
---
 .../target/arm/s5l8700/ipodnano2g/nand-nano2g.c    | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'firmware/target/arm/s5l8700/ipodnano2g/nand-nano2g.c')

diff --git a/firmware/target/arm/s5l8700/ipodnano2g/nand-nano2g.c b/firmware/target/arm/s5l8700/ipodnano2g/nand-nano2g.c
index e9eab73df9..ba1f0df534 100644
--- a/firmware/target/arm/s5l8700/ipodnano2g/nand-nano2g.c
+++ b/firmware/target/arm/s5l8700/ipodnano2g/nand-nano2g.c
@@ -676,6 +676,41 @@ uint32_t nand_write_page_collect(uint32_t bank)
     return nand_wait_status_ready(bank);
 }
 
+uint32_t nand_block_erase_fast(uint32_t page)
+{
+    uint32_t i, rc = 0;
+    mutex_lock(&nand_mtx);
+    nand_last_activity_value = current_tick;
+    led(true);
+    if (!nand_powered) nand_power_up();
+    for (i = 0; i < 4; i++)
+    {
+        if (nand_type[i] == 0xFFFFFFFF) continue;
+        nand_set_fmctrl0(i, 0);
+        if (nand_send_cmd(NAND_CMD_BLOCKERASE))
+        {
+            rc |= 1 << i;
+            continue;
+        }
+        FMANUM = 2;
+        FMADDR0 = page;
+        FMCTRL1 = FMCTRL1_DOTRANSADDR;
+        if (nand_wait_cmddone())
+        {
+            rc |= 1 << i;
+            continue;
+        }
+        if (nand_send_cmd(NAND_CMD_ERASECNFRM)) rc |= 1 << i;
+    }
+    for (i = 0; i < 4; i++)
+    {
+        if (nand_type[i] == 0xFFFFFFFF) continue;
+        if (rc & (1 << i)) continue;
+        if (nand_wait_status_ready(i)) rc |= 1 << i;
+    }
+    return nand_unlock(rc);
+}
+
 const struct nand_device_info_type* nand_get_device_type(uint32_t bank)
 {
     if (nand_type[bank] == 0xFFFFFFFF)
-- 
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