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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2013-12-18 16:03:44 +0900
committerNobuhiro Iwamatsu <iwamatsu@nigauri.org>2013-12-18 16:49:08 +0900
commit320cf350801f30875fe5749eee74aed242573031 (patch)
tree9d1c6cc30fa023b6e225fb23dee087eafee1652d /doc/README.sh7753evb
parentfd44194945714a478fab6407c04453caaef0bac9 (diff)
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sh: add support for sh7753evb board
The SH7753 EVB board has SH7753, 512MB DDR3-SDRAM, SPI ROM, Gigabit Ethernet, and eMMC. This patch support the following functions: - 512MB DDR3-SDRAM, SCIF4, SPI ROM, Gigabit Ethernet, eMMC Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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+========================================
+Renesas SH7753 EVB board
+========================================
+
+This board specification:
+=========================
+
+The SH7753 EVB (board config name:sh7753evb) has the following device:
+
+ - SH7753 (SH-4A)
+ - DDR3-SDRAM 512MB
+ - SPI ROM 8MB
+ - Gigabit Ethernet controllers
+ - eMMC 4GB
+
+
+Configuration for This board:
+=============================
+
+You can select the configuration as follows:
+
+ - make sh7753evb_config
+
+
+This board specific command:
+============================
+
+This board has the following its specific command:
+
+ - write_mac
+
+
+1. write_mac
+
+You can write MAC address to SPI ROM.
+
+ Usage 1) Write MAC address
+
+ write_mac [GETHERC ch0] [GETHERC ch1]
+
+ For example)
+ => write_mac 74:90:50:00:33:9e 74:90:50:00:33:9f
+ *) We have to input the command as a single line
+ (without carriage return)
+ *) We have to reset after input the command.
+
+ Usage 2) Show current data
+
+ write_mac
+
+ For example)
+ => write_mac
+ GETHERC ch0 = 74:90:50:00:33:9e
+ GETHERC ch1 = 74:90:50:00:33:9f
+
+
+Update SPI ROM:
+============================
+
+1. Copy u-boot image to RAM area.
+2. Probe SPI device.
+ => sf probe 0
+ SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
+3. Erase SPI ROM.
+ => sf erase 0 80000
+4. Write u-boot image to SPI ROM.
+ => sf write 0x48000000 0 80000