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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2012-11-04 15:53:22 +0000
committerNobuhiro Iwamatsu <iwamatsu@nigauri.org>2012-12-20 13:20:17 +0900
commit1a2621bab89c3fd6bd09a601b0b94dc26e238d7c (patch)
tree8ad313a5c351c71d833c80daeb3b923c3ef9b98b /doc
parent095728803eedfce850a2f85828f79500cb09979e (diff)
downloadtalos-obmc-uboot-1a2621bab89c3fd6bd09a601b0b94dc26e238d7c.tar.gz
talos-obmc-uboot-1a2621bab89c3fd6bd09a601b0b94dc26e238d7c.zip
sh: add support for sh7752evb board
The R0P7752C00000RZ board has SH7752, 512MB DDR3-SDRAM, SPI ROM, Gigabit Ethernet, and eMMC. This patch supports 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 R0P7752C00000RZ board
+========================================
+
+This board specification:
+=========================
+
+The R0P7752C00000RZ(board config name:sh7752evb) has the following device:
+
+ - SH7752 (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 sh7752evb_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
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