[PATCH 09/10] m68k: stmark2: enable DACs outputs

Angelo Dureghello
2026-05-04T17:23:36Z

From: Angelo Dureghello <adureghello@baylibre.com>

Enabled DAC0 and DAC1 outpus disabling shared ADC inputs on ADC3 and ADC7.

Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>
---
arch/m68k/coldfire/stmark2.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/arch/m68k/coldfire/stmark2.c b/arch/m68k/coldfire/stmark2.c
index 30da9bcbfd63..8fdfb9415cd7 100644
--- a/arch/m68k/coldfire/stmark2.c
+++ b/arch/m68k/coldfire/stmark2.c
@@ -137,6 +137,8 @@ static struct platform_device *stmark2_devices[] __initdata = {
*/
static int __init init_stmark2(void)
{
+ uint16_t val;
+
/* DSPI0, all pins as DSPI, and using CS1 */
__raw_writeb(0x80, MCFGPIO_PAR_DSPIOWL);
__raw_writeb(0xfc, MCFGPIO_PAR_DSPIOWH);
@@ -149,6 +151,12 @@ static int __init init_stmark2(void)
/* CAN pads */
__raw_writeb(0x50, MCFGPIO_PAR_CANI2C);

+ /* Enable DAC0 and 1 */
+ val = __raw_readw(MCF_CCM_MISCCR2);
+ val &= ~(MCF_CCM_MISCCR2_ADC3_EN | MCF_CCM_MISCCR2_ADC7_EN);
+ val |= MCF_CCM_MISCCR2_DAC0_SEL | MCF_CCM_MISCCR2_DAC1_SEL;
+ __raw_writew(val, MCF_CCM_MISCCR2);
+
platform_add_devices(stmark2_devices, ARRAY_SIZE(stmark2_devices));

spi_register_board_info(stmark2_board_info,

--
2.54.0