From 26a33504a55e4882520f2e9da96ba6c22badb353 Mon Sep 17 00:00:00 2001 From: Richard Retanubun Date: Mon, 12 Apr 2010 15:08:17 -0400 Subject: fsl_i2c: Added a callpoint for i2c_board_late_init This patch adds a callpoint in i2c_init that allows board specific i2c board initialization (typically for i2c bus reset) that is called after i2c_init operations, allowing the i2c_board_late_init function to use the pre-configured i2c bus speed and slave address. --- README | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'README') diff --git a/README b/README index 99320ab..cf6b898 100644 --- a/README +++ b/README @@ -1509,6 +1509,17 @@ The following options need to be configured: custom i2c_init_board() routine in boards/xxx/board.c is run early in the boot sequence. + CONFIG_SYS_I2C_BOARD_LATE_INIT + + An alternative to CONFIG_SYS_I2C_INIT_BOARD. If this option is + defined a custom i2c_board_late_init() routine in + boards/xxx/board.c is run AFTER the operations in i2c_init() + is completed. This callpoint can be used to unreset i2c bus + using CPU i2c controller register accesses for CPUs whose i2c + controller provide such a method. It is called at the end of + i2c_init() to allow i2c_init operations to setup the i2c bus + controller on the CPU (e.g. setting bus speed & slave address). + CONFIG_I2CFAST (PPC405GP|PPC405EP only) This option enables configuration of bi_iic_fast[] flags -- cgit v1.1