[U-Boot-Users] [PATCH] Fix SPI read/write length issue

[Aubrey Li]

When the functions "eeprom_read" and "eeprom_write" works for the SPI
flash, the data length is limited to I2C_RXTX_LEN. See the following
piece of code.
-----------------------------
#if !defined(CFG_I2C_FRAM)
                        maxlen = 0x100 - blk_off;
                        if (maxlen > I2C_RXTX_LEN)
                                    maxlen = I2C_RXTX_LEN;

                        if (len > maxlen)
                                    len = maxlen;
#endif
-----------------------------

The following patch fixes this issue.

>From 2451cc87059acc456597a28f802ab3acb2d61ad4 Mon Sep 17 00:00:00 2001
From: Aubrey Li <aubrey.adi at gmail.com>
Date: Thu, 22 Mar 2007 17:26:27 +0800
Subject: [PATCH] Fix spi read/write length issue


Signed-off-by: Aubrey Li <aubrey.adi at gmail.com>
---
 common/cmd_eeprom.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/common/cmd_eeprom.c b/common/cmd_eeprom.c
index d15a412..71d9792 100644
--- a/common/cmd_eeprom.c
+++ b/common/cmd_eeprom.c
@@ -177,10 +177,14 @@ int eeprom_read (unsigned dev_addr, unsi
 		maxlen = 0x100 - blk_off;
 		if (maxlen > I2C_RXTX_LEN)
 			maxlen = I2C_RXTX_LEN;
+
+#ifndef CONFIG_SPI
 		if (len > maxlen)
 			len = maxlen;
 #endif

+#endif
+
 #ifdef CONFIG_SPI
 		spi_read (addr, alen, buffer, len);
 #else
@@ -273,10 +277,13 @@ int eeprom_write (unsigned dev_addr, uns
 		if (maxlen > I2C_RXTX_LEN)
 			maxlen = I2C_RXTX_LEN;

+#ifndef CONFIG_SPI
 		if (len > maxlen)
 			len = maxlen;
 #endif

+#endif
+
 #ifdef CONFIG_SPI
 		spi_write (addr, alen, buffer, len);
 #else
-- 
1.4.4

Best Regards,
-Aubrey