From 14b9f16c401206097c361ae4198c6b2ece805964 Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Mon, 14 May 2012 20:24:14 +0000 Subject: arm,davinci: update for enbw_cmc board - change gpio pin settings: - gpio pin 6[13] (PLC reset) default value low - gpio pin 6[0] (TPM reset) default value low - 4 new GPIO pins pin i/o name - 3[9] input Board Type - 2[7] input HW-ID0 - 2[6] input HW-ID1 - 2[3] input HW-ID2 - read board type and hw id from gpio pins on the enbw_cmc board, and use board type for setting up different gpio pin settings. - do not pass "davinci_mmc.use_dma=0" to linux, as MMC now works with DMA. - update logbuf support: store post word in RTC scratch register - add support for configuring KSZ8864RMN switch through a config file on u-boot startup. For more infos see: doc/README.switch_config Signed-off-by: Heiko Schocher Cc: Wolfgang Denk Cc: Tom Rini Cc: Christian Riesch Cc: Sandeep Paulraj --- doc/README.switch_config | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 doc/README.switch_config (limited to 'doc') diff --git a/doc/README.switch_config b/doc/README.switch_config new file mode 100644 index 0000000000..f8903738e1 --- /dev/null +++ b/doc/README.switch_config @@ -0,0 +1,25 @@ +On the enbw_cmc board is a KSZ8864RMN switch which needs +configured through spi before working. This is done on +startup from u-boot through a config file stored at an +address specified in the "hwconfig" environment variable, +subcommand "config". + +For example on the enbw_cmc board: + +hwconfig=switch:lan=on,pwl=off,config=0x60160000 + +The file has the following structure: + +- a comment starts with a '#' or a ';' and ends with a newline +- The switch needs for its config a reg/value pair, so we + have two columns in the file: + reg : contains the register address + value: contains a 8 bit register value + This 2 columns are seperated through space or tab. + +example (minimal configuration on the enbw_cmc board): + +;reg value comment +;----------------------------------------- +0x01 0x00 +0x01 0x01 ; Start Switch with this configuration -- cgit v1.2.3