From patchwork Fri May 31 12:31:36 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vikas C Sajjan X-Patchwork-Id: 2643351 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 7B3053FD4E for ; Fri, 31 May 2013 12:32:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754952Ab3EaMca (ORCPT ); Fri, 31 May 2013 08:32:30 -0400 Received: from mail-pd0-f175.google.com ([209.85.192.175]:51303 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754438Ab3EaMc3 (ORCPT ); Fri, 31 May 2013 08:32:29 -0400 Received: by mail-pd0-f175.google.com with SMTP id 4so129635pdd.6 for ; Fri, 31 May 2013 05:32:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=qT+/Jr71aBFVnL+O/Yhs+GhWnZXLEARN9ZIGUiasoDc=; b=PNLLN35jcybhpRot1rPy5zbcuxpTkDxpv0eG55Tg1rRYHjxivZoDvMtF1VtHWViTHC ejq+WNiEtK1TVgkpxCf7xS7qYc/pKp4q91yYJnG3EoBKZrZXLD4XLX+WjPzScBsviXZm un9S/H+1qdHZ2fRTJIW5keHPbme2ehC996lF7QBl3CmlxHf/0BiHhrTndJw95S1M8x/6 Tae39JBAtDJfYh3vY10YTbmijzFMNWOgz7onYDbB7h8fzztECU+0MYJbAftLpqj+jVcV pcayHTpwTHuJnVaq+s4+UPw4Ils2/Cqwsmo5qAaRY6qxwbv8l7hDfynrESSLWKHpEjyN HH1g== X-Received: by 10.68.236.68 with SMTP id us4mr12997797pbc.119.1370003549111; Fri, 31 May 2013 05:32:29 -0700 (PDT) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPSA id gh9sm46508646pbc.37.2013.05.31.05.32.24 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 31 May 2013 05:32:27 -0700 (PDT) From: Vikas Sajjan To: linux-samsung-soc@vger.kernel.org Cc: kgene.kim@samsung.com, t.figa@samsung.com, yadi.brar01@gmail.com, dianders@chromium.org, mturquette@linaro.org, linux-arm-kernel@lists.infradead.org, thomas.abraham@linaro.org, patches@linaro.org, linaro-kernel@lists.linaro.org Subject: [PATCH v3 6/6] clk: samsung: Add EPLL and VPLL freq table for exynos5250 SoC Date: Fri, 31 May 2013 18:01:36 +0530 Message-Id: <1370003496-19288-7-git-send-email-vikas.sajjan@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1370003496-19288-1-git-send-email-vikas.sajjan@linaro.org> References: <1370003496-19288-1-git-send-email-vikas.sajjan@linaro.org> X-Gm-Message-State: ALoCoQnJ2Q1Sw2FHsYbMErRHEPCrQcuBjNVvGOH13hH9eZFSbUAgKE5C5mD3gkK8JAG6Uxf4pyXi Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Adds the EPLL and VPLL freq table for exynos5250 SoC. Signed-off-by: Vikas Sajjan --- drivers/clk/samsung/clk-exynos5250.c | 48 +++++++++++++++++++++++++++++++--- drivers/clk/samsung/clk.h | 2 ++ 2 files changed, 47 insertions(+), 3 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index b0e6680..0566421 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -473,11 +473,32 @@ static __initdata struct of_device_id ext_clk_match[] = { { }, }; +static const struct samsung_pll_rate_table vpll_24mhz_tbl[] = { + /* sorted in descending order */ + /* PLL_36XX_RATE(rate, m, p, s, k) */ + PLL_36XX_RATE(266000000, 266, 3, 3, 0), + PLL_36XX_RATE(70500000, 94, 2, 4, 0), +}; + +static const struct samsung_pll_rate_table epll_24mhz_tbl[] = { + /* sorted in descending order */ + /* PLL_36XX_RATE(rate, m, p, s, k) */ + PLL_36XX_RATE(192000000, 48, 3, 1, 0), + PLL_36XX_RATE(180633600, 45, 3, 1, 10381), + PLL_36XX_RATE(180000000, 45, 3, 1, 0), + PLL_36XX_RATE(73728000, 73, 3, 3, 47710), + PLL_36XX_RATE(67737600, 90, 4, 3, 20762), + PLL_36XX_RATE(49152000, 49, 3, 3, 9962), + PLL_36XX_RATE(45158400, 45, 3, 3, 10381), + PLL_36XX_RATE(32768000, 131, 3, 5, 4719), +}; + /* register exynox5250 clocks */ void __init exynos5250_clk_init(struct device_node *np) { void __iomem *reg_base; struct clk *apll, *mpll, *epll, *vpll, *bpll, *gpll, *cpll; + unsigned long fin_pll_rate, mout_vpllsrc_rate; if (np) { reg_base = of_iomap(np, 0); @@ -497,6 +518,9 @@ void __init exynos5250_clk_init(struct device_node *np) samsung_clk_register_mux(exynos5250_pll_pmux_clks, ARRAY_SIZE(exynos5250_pll_pmux_clks)); + fin_pll_rate = _get_rate("fin_pll"); + mout_vpllsrc_rate = _get_rate("mout_vpllsrc"); + apll = samsung_clk_register_pll35xx("fout_apll", "fin_pll", reg_base, NULL, 0); mpll = samsung_clk_register_pll35xx("fout_mpll", "fin_pll", @@ -507,10 +531,28 @@ void __init exynos5250_clk_init(struct device_node *np) reg_base + 0x10050, NULL, 0); cpll = samsung_clk_register_pll35xx("fout_cpll", "fin_pll", reg_base + 0x10020, NULL, 0); - epll = samsung_clk_register_pll36xx("fout_epll", "fin_pll", - reg_base + 0x10030, NULL, 0); - vpll = samsung_clk_register_pll36xx("fout_vpll", "mout_vpllsrc", + + if (fin_pll_rate == (24 * MHZ)) { + epll = samsung_clk_register_pll36xx("fout_epll", "fin_pll", + reg_base + 0x10030, epll_24mhz_tbl, + ARRAY_SIZE(epll_24mhz_tbl)); + } else { + pr_warn("Exynos5250: valid epll rate_table missing for\n" + "parent fin_pll:%lu hz\n", fin_pll_rate); + epll = samsung_clk_register_pll36xx("fout_epll", "fin_pll", + reg_base + 0x10030, NULL, 0); + } + + if (mout_vpllsrc_rate == (24 * MHZ)) { + vpll = samsung_clk_register_pll36xx("fout_vpll", "mout_vpllsrc" + , reg_base + 0x10040, vpll_24mhz_tbl, + ARRAY_SIZE(vpll_24mhz_tbl)); + } else { + pr_warn("Exynos5250: valid vpll rate_table missing for\n" + "parent mout_vpllsrc_rate:%lu hz\n", mout_vpllsrc_rate); + samsung_clk_register_pll36xx("fout_vpll", "mout_vpllsrc", reg_base + 0x10040, NULL, 0); + } samsung_clk_register_fixed_rate(exynos5250_fixed_rate_clks, ARRAY_SIZE(exynos5250_fixed_rate_clks)); diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index e4ad6ea..c997649 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -20,6 +20,8 @@ #include #include +#define MHZ (1000*1000) + /** * struct samsung_clock_alias: information about mux clock * @id: platform specific id of the clock.