From patchwork Tue Sep 29 14:44:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 11806161 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 98DF71746 for ; Tue, 29 Sep 2020 14:40:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7F06021941 for ; Tue, 29 Sep 2020 14:40:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731520AbgI2Oki (ORCPT ); Tue, 29 Sep 2020 10:40:38 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:29348 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730303AbgI2Okd (ORCPT ); Tue, 29 Sep 2020 10:40:33 -0400 Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 08TEbcgU004650; Tue, 29 Sep 2020 10:40:25 -0400 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com with ESMTP id 33t2j4kehp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 29 Sep 2020 10:40:25 -0400 Received: from ASHBMBX9.ad.analog.com (ashbmbx9.ad.analog.com [10.64.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 08TEeOMs041994 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Tue, 29 Sep 2020 10:40:24 -0400 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Tue, 29 Sep 2020 10:40:17 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Tue, 29 Sep 2020 10:40:16 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Tue, 29 Sep 2020 10:40:16 -0400 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 08TEdkc6028450; Tue, 29 Sep 2020 10:40:19 -0400 From: Alexandru Ardelean To: , , CC: , , , , Mathias Tausen , "Alexandru Ardelean" Subject: [PATCH v4 5/7] clk: axi-clkgen: Respect ZYNQMP PFD/VCO frequency limits Date: Tue, 29 Sep 2020 17:44:15 +0300 Message-ID: <20200929144417.89816-14-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200929144417.89816-1-alexandru.ardelean@analog.com> References: <20200929144417.89816-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-29_07:2020-09-29,2020-09-29 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 priorityscore=1501 phishscore=0 spamscore=0 malwarescore=0 bulkscore=0 clxscore=1015 mlxlogscore=743 mlxscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009290130 Precedence: bulk List-ID: X-Mailing-List: linux-fpga@vger.kernel.org From: Mathias Tausen Since axi-clkgen is now supported on ZYNQMP, make sure the max/min frequencies of the PFD and VCO are respected. Signed-off-by: Mathias Tausen Signed-off-by: Alexandru Ardelean --- drivers/clk/clk-axi-clkgen.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/clk/clk-axi-clkgen.c b/drivers/clk/clk-axi-clkgen.c index 4342b7735590..2319bb1c5c08 100644 --- a/drivers/clk/clk-axi-clkgen.c +++ b/drivers/clk/clk-axi-clkgen.c @@ -108,12 +108,21 @@ static uint32_t axi_clkgen_lookup_lock(unsigned int m) return 0x1f1f00fa; } +#ifdef ARCH_ZYNQMP +static const struct axi_clkgen_limits axi_clkgen_default_limits = { + .fpfd_min = 10000, + .fpfd_max = 450000, + .fvco_min = 800000, + .fvco_max = 1600000, +}; +#else static const struct axi_clkgen_limits axi_clkgen_default_limits = { .fpfd_min = 10000, .fpfd_max = 300000, .fvco_min = 600000, .fvco_max = 1200000, }; +#endif static void axi_clkgen_calc_params(const struct axi_clkgen_limits *limits, unsigned long fin, unsigned long fout,