Drop this old code to permit removal of legacy I2C code.
Signed-off-by: Simon Glass sjg@chromium.org ---
board/keymile/Kconfig | 3 -- board/keymile/common/common.c | 69 ----------------------------------- 2 files changed, 72 deletions(-)
diff --git a/board/keymile/Kconfig b/board/keymile/Kconfig index 18ef689b334..3585941470e 100644 --- a/board/keymile/Kconfig +++ b/board/keymile/Kconfig @@ -11,9 +11,6 @@ if VENDOR_KM
menu "KM Board Setup"
-config SYS_I2C_INIT_BOARD - def_bool y if ARM - config HUSH_INIT_VAR def_bool y
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c index 9358c25dcb0..5aa7c4e5383 100644 --- a/board/keymile/common/common.c +++ b/board/keymile/common/common.c @@ -129,75 +129,6 @@ void check_for_uboot_update(void) } #endif
-#if defined(CONFIG_SYS_I2C_INIT_BOARD) -static void i2c_write_start_seq(void) -{ - set_sda(1); - udelay(DELAY_HALF_PERIOD); - set_scl(1); - udelay(DELAY_HALF_PERIOD); - set_sda(0); - udelay(DELAY_HALF_PERIOD); - set_scl(0); - udelay(DELAY_HALF_PERIOD); -} - -/* - * I2C is a synchronous protocol and resets of the processor in the middle - * of an access can block the I2C Bus until a powerdown of the full unit is - * done. This function toggles the SCL until the SCL and SCA line are - * released, but max. 16 times, after this a I2C start-sequence is sent. - * This I2C Deblocking mechanism was developed by Keymile in association - * with Anatech and Atmel in 1998. - */ -int i2c_make_abort(void) -{ - int scl_state = 0; - int sda_state = 0; - int i = 0; - int ret = 0; - - if (!get_sda()) { - ret = -1; - while (i < 16) { - i++; - set_scl(0); - udelay(DELAY_ABORT_SEQ); - set_scl(1); - udelay(DELAY_ABORT_SEQ); - scl_state = get_scl(); - sda_state = get_sda(); - if (scl_state && sda_state) { - ret = 0; - break; - } - } - } - if (ret == 0) - for (i = 0; i < 5; i++) - i2c_write_start_seq(); - - /* respect stop setup time */ - udelay(DELAY_ABORT_SEQ); - set_scl(1); - udelay(DELAY_ABORT_SEQ); - set_sda(1); - get_sda(); - - return ret; -} - -/** - * i2c_init_board - reset i2c bus. When the board is powercycled during a - * bus transfer it might hang; for details see doc/I2C_Edge_Conditions. - */ -void i2c_init_board(void) -{ - /* Now run the AbortSequence() */ - i2c_make_abort(); -} -#endif - #if defined(CONFIG_KM_COMMON_ETH_INIT) int board_eth_init(struct bd_info *bis) {