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From: Angelo Dureghello <angelo@kernel-space.org>
To: "Greg Ungerer" <gerg@linux-m68k.org>,
	"Geert Uytterhoeven" <geert@linux-m68k.org>,
	"Steven King" <sfking@fdwdc.com>, "Arnd Bergmann" <arnd@arndb.de>,
	"Maxime Coquelin" <mcoquelin.stm32@gmail.com>,
	"Alexandre Torgue" <alexandre.torgue@foss.st.com>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>
Cc: Greg Ungerer <gerg@uclinux.org>,
	linux-m68k@lists.linux-m68k.org,  linux-kernel@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	 linux-arm-kernel@lists.infradead.org, linux-iio@vger.kernel.org,
	 Angelo Dureghello <adureghello@baylibre.com>
Subject: [PATCH 09/10] m68k: stmark2: enable DACs outputs
Date: Mon, 04 May 2026 19:16:47 +0200	[thread overview]
Message-ID: <20260504-wip-stmark2-dac-v1-9-874c36a4910d@baylibre.com> (raw)
In-Reply-To: <20260504-wip-stmark2-dac-v1-0-874c36a4910d@baylibre.com>

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



  parent reply	other threads:[~2026-05-04 17:23 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-04 17:16 [PATCH 00/10] add mcf54415 DAC driver Angelo Dureghello
2026-05-04 17:16 ` [PATCH 01/10] m68k: mcf5441x: fix clocks numbering Angelo Dureghello
2026-05-04 17:16 ` [PATCH 02/10] m68k: mcf5441x: add clock for DAC channel 1 Angelo Dureghello
2026-05-04 17:16 ` [PATCH 03/10] m68k: mcf5441x: setup DAC clock name as per driver name Angelo Dureghello
2026-05-04 17:16 ` [PATCH 04/10] m68k: defconfig: update stmark2 defconfig Angelo Dureghello
2026-05-04 17:16 ` [PATCH 05/10] m68k: add DAC modules base addresses Angelo Dureghello
2026-05-04 17:16 ` [PATCH 06/10] m68k: mcf5441x: add CCM registers Angelo Dureghello
2026-05-04 17:16 ` [PATCH 07/10] m68k: mcf5441x: add CCR MISCCR2 bitfields Angelo Dureghello
2026-05-06 14:49   ` Jonathan Cameron
2026-05-06 14:56   ` Jonathan Cameron
2026-05-04 17:16 ` [PATCH 08/10] m68k: stmark2: add mcf5441x DAC platform devices Angelo Dureghello
2026-05-04 17:28   ` Arnd Bergmann
2026-05-06 14:57     ` Jonathan Cameron
2026-05-06 21:07       ` Angelo Dureghello
2026-05-05  8:31   ` Andy Shevchenko
2026-05-04 17:16 ` Angelo Dureghello [this message]
2026-05-05  2:12   ` [PATCH 09/10] m68k: stmark2: enable DACs outputs Greg Ungerer
2026-05-05  8:32   ` Andy Shevchenko
2026-05-06 14:53   ` Jonathan Cameron
2026-05-04 17:16 ` [PATCH 10/10] iio: dac: add mcf54415 DAC Angelo Dureghello
2026-05-04 17:27   ` Arnd Bergmann
2026-05-05  2:06     ` Greg Ungerer
2026-05-05  5:54       ` Angelo Dureghello
2026-05-04 19:13   ` Nuno Sá
2026-05-05  8:45   ` Andy Shevchenko
2026-05-06 15:20   ` Jonathan Cameron
2026-05-04 19:57 ` [PATCH 00/10] add mcf54415 DAC driver Angelo Dureghello

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