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From: Tony Lindgren <tony@atomide.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, Keerthy <j-keerthy@ti.com>,
	Lokesh Vutla <lokeshvutla@ti.com>, Tero Kristo <t-kristo@ti.com>,
	"H. Nikolaus Schaller" <hns@goldelico.com>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Adam Ford <aford173@gmail.com>,
	Andreas Kemnade <andreas@kemnade.info>,
	Brian Hutchinson <b.hutchman@gmail.com>,
	Graeme Smecher <gsmecher@threespeedlogic.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	devicetree@vger.kernel.org, linux-clk@vger.kernel.org
Subject: [PATCH 05/15] bus: ti-sysc: Ignore timer12 on secure omap3
Date: Wed, 29 Apr 2020 14:53:52 -0700
Message-ID: <20200429215402.18125-6-tony@atomide.com> (raw)
In-Reply-To: <20200429215402.18125-1-tony@atomide.com>

Some early omap3 boards use timer12 for system timer, but for secure
SoCs like on n900 it's not accessible. Likely we will be configuring
unavailable devices for other SoCs too based on runtime SoC detection,
so let's use a switch to start with.

Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/bus/ti-sysc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -2744,6 +2744,17 @@ static int sysc_init_soc(struct sysc *ddata)
 	if (match && match->data)
 		sysc_soc->soc = (int)match->data;
 
+	/* Ignore devices that are not available on HS and EMU SoCs */
+	if (!sysc_soc->general_purpose) {
+		switch (sysc_soc->soc) {
+		case SOC_3430 ... SOC_3630:
+			sysc_add_disabled(0x48304000);	/* timer12 */
+			break;
+		default:
+			break;
+		};
+	}
+
 	match = soc_device_match(sysc_soc_feat_match);
 	if (!match)
 		return 0;
-- 
2.26.2

  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-29 21:53 [PATCHv2 00/15] Update omaps to use drivers/clocksource timers Tony Lindgren
2020-04-29 21:53 ` [PATCH 01/15] clocksource/drivers/timer-ti-32k: Add support for initializing directly Tony Lindgren
2020-04-29 21:53 ` [PATCH 02/15] dt-bindings: timer: add ti,dmtimer compatible for for system timers Tony Lindgren
2020-05-12 14:52   ` [PATCH 02/15] dt-bindings: timer: add ti, dmtimer " Rob Herring
2020-05-12 14:56     ` Tony Lindgren
2020-04-29 21:53 ` [PATCH 03/15] clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support Tony Lindgren
2020-04-29 21:53 ` [PATCH 04/15] clk: ti: dm816: enable sysclk6_ck on init Tony Lindgren
2020-04-29 21:53 ` Tony Lindgren [this message]
2020-04-29 21:53 ` [PATCH 06/15] ARM: OMAP2+: Add omap_init_time_of() Tony Lindgren
2020-04-29 21:53 ` [PATCH 07/15] ARM: dts: Configure system timers for am335x Tony Lindgren
2020-04-29 21:53 ` [PATCH 08/15] ARM: dts: Configure system timers for am437x Tony Lindgren
2020-04-29 21:53 ` [PATCH 09/15] ARM: dts: Configure system timers for omap4 Tony Lindgren
2020-04-29 21:53 ` [PATCH 10/15] ARM: dts: Configure system timers for omap5 and dra7 Tony Lindgren
2020-04-29 21:53 ` [PATCH 11/15] ARM: dts: Configure system timers for omap3 Tony Lindgren
2020-05-02 15:38   ` Adam Ford
2020-04-29 21:53 ` [PATCH 12/15] ARM: dts: Configure system timers for ti81xx Tony Lindgren
2020-04-29 21:54 ` [PATCH 13/15] ARM: dts: Configure system timers for omap2 Tony Lindgren
2020-04-29 21:54 ` [PATCH 14/15] ARM: OMAP2+: Drop old timer code for dmtimer and 32k counter Tony Lindgren
2020-04-29 21:54 ` [PATCH 15/15] bus: ti-sysc: Timers no longer need legacy quirk handling Tony Lindgren

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