Measuring the spi clock line on a scope shows a 'glitch' during the reset of the
spi.
Fix this by toggling only the MXC_CSPICTRL_EN bit, so that the clock line becomes
always stable.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
reg_ctrl = reg_read(®s->ctrl);
/* Reset spi */
- reg_write(®s->ctrl, 0);
- reg_write(®s->ctrl, (reg_ctrl | 0x1));
+ reg_write(®s->ctrl, (reg_ctrl & ~MXC_CSPICTRL_EN));
+ reg_write(®s->ctrl, (reg_ctrl | MXC_CSPICTRL_EN));
/*
* The following computation is taken directly from Freescale's code.