From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 09 Feb 2026 10:15:47 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vpNMx-00AVIz-0x for lore@lore.pengutronix.de; Mon, 09 Feb 2026 10:15:46 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vpNMw-0006A4-7J for lore@pengutronix.de; Mon, 09 Feb 2026 10:15:46 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Sjw5Dd4VM8eNb0HKMcnYtDIaKVc5rc2ThLn/oIvzxls=; b=Jg0tJmxvOw4f0ZYQhMTNl/itMF Pxzfb0+9LwLVACsAMYZEs46RUY9Al3+RNunHXk9Gl0E3Bsv9MzVb0vt/OX5L8f3+mvRHXxH4q4Cwx 8ZibppH4rA/IuYvHGoHq5hrzFJ915hi/QCPxVVEisezLlmAXTEINuBHMs236Ac7fAzV9BxefQefg9 qeZVYbx5giIDR19SZ7mnkSP8E3o/uHk2UiffknhMHHbHyrpC8cG3SNyDHuUx6Wr3ay8TA5wKy9ifN YYgmzMzWMW1N0WuYsYiVe5vL2PNcHW2rwmqoJyNFKRzRwH3KJ6srDXdpLKMCscryqaucsXw6++OzJ LOEh6Wfg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vpNMa-0000000F6gK-0ISc; Mon, 09 Feb 2026 09:15:24 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vpNMU-0000000F6ba-3doT for barebox@lists.infradead.org; Mon, 09 Feb 2026 09:15:22 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=localhost.localdomain) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1vpNMT-0005oY-8c; Mon, 09 Feb 2026 10:15:17 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: "Claude Opus 4.6" , Ahmad Fatoum Date: Mon, 9 Feb 2026 10:10:30 +0100 Message-ID: <20260209091513.3563412-6-a.fatoum@barebox.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260209091513.3563412-1-a.fatoum@barebox.org> References: <20260209091513.3563412-1-a.fatoum@barebox.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260209_011520_279398_243F5955 X-CRM114-Status: UNSURE ( 8.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 5/6] mach-mpc85xx: speed: add fsl_set_timebase_clock() override X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Some platforms (e.g. QEMU) don't implement the GUTS PORPLLSR register, so the register-based timebase frequency calculation returns 0. Add fsl_set_timebase_clock() that allows board code to provide the correct timebase frequency before initcalls run, bypassing the register read. Co-Authored-By: Claude Opus 4.6 Signed-off-by: Ahmad Fatoum --- arch/powerpc/mach-mpc85xx/include/mach/clock.h | 1 + arch/powerpc/mach-mpc85xx/speed.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/arch/powerpc/mach-mpc85xx/include/mach/clock.h b/arch/powerpc/mach-mpc85xx/include/mach/clock.h index bfd9cf4d8ecd..2d0f079f5c68 100644 --- a/arch/powerpc/mach-mpc85xx/include/mach/clock.h +++ b/arch/powerpc/mach-mpc85xx/include/mach/clock.h @@ -14,6 +14,7 @@ struct sys_info { unsigned long fsl_get_bus_freq(ulong dummy); unsigned long fsl_get_ddr_freq(ulong dummy); +void fsl_set_timebase_clock(unsigned long freq); unsigned long fsl_get_timebase_clock(void); unsigned long fsl_get_i2c_freq(void); void fsl_get_sys_info(struct sys_info *sysInfo); diff --git a/arch/powerpc/mach-mpc85xx/speed.c b/arch/powerpc/mach-mpc85xx/speed.c index 4a69de3dc81a..8018132874ba 100644 --- a/arch/powerpc/mach-mpc85xx/speed.c +++ b/arch/powerpc/mach-mpc85xx/speed.c @@ -104,10 +104,20 @@ unsigned long fsl_get_ddr_freq(ulong dummy) return sys_info.freqDDRBus; } +static unsigned long timebase_clock_override; + +void fsl_set_timebase_clock(unsigned long freq) +{ + timebase_clock_override = freq; +} + unsigned long fsl_get_timebase_clock(void) { struct sys_info sysinfo; + if (timebase_clock_override) + return timebase_clock_override; + fsl_get_sys_info(&sysinfo); return (sysinfo.freqSystemBus + 4UL)/8UL; -- 2.47.3