From patchwork Thu Jun 6 07:28:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 2677551 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id D86BFDFF68 for ; Thu, 6 Jun 2013 07:28:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757441Ab3FFH2s (ORCPT ); Thu, 6 Jun 2013 03:28:48 -0400 Received: from kirsty.vergenet.net ([202.4.237.240]:59356 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756816Ab3FFH2o (ORCPT ); Thu, 6 Jun 2013 03:28:44 -0400 Received: from ayumi.isobedori.kobe.vergenet.net (p5212-ipbfp1903kobeminato.hyogo.ocn.ne.jp [114.172.132.212]) by kirsty.vergenet.net (Postfix) with ESMTP id 6B1BF25C025; Thu, 6 Jun 2013 17:28:43 +1000 (EST) Received: by ayumi.isobedori.kobe.vergenet.net (Postfix, from userid 7100) id AA40E6CE066; Thu, 6 Jun 2013 16:28:40 +0900 (JST) From: Simon Horman To: Arnd Bergmann , Olof Johansson Cc: linux-sh@vger.kernel.org, arm@kernel.org, linux-arm-kernel@lists.infradead.org, Magnus Damm , Kuninori Morimoto , Simon Horman Subject: [PATCH 15/23] ARM: shmobile: r8a7790: add div4 clocks Date: Thu, 6 Jun 2013 16:28:28 +0900 Message-Id: <1370503716-31155-16-git-send-email-horms+renesas@verge.net.au> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1370503716-31155-1-git-send-email-horms+renesas@verge.net.au> References: <1370503716-31155-1-git-send-email-horms+renesas@verge.net.au> Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org From: Kuninori Morimoto DIV4 clocks control SD* core clocks. Signed-off-by: Kuninori Morimoto Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/clock-r8a7790.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c index 850e47f..c85e643 100644 --- a/arch/arm/mach-shmobile/clock-r8a7790.c +++ b/arch/arm/mach-shmobile/clock-r8a7790.c @@ -51,6 +51,7 @@ #define SMSTPCR7 0xe615014c #define MODEMR 0xE6160060 +#define SDCKCR 0xE6150074 static struct clk_mapping cpg_mapping = { .phys = CPG_BASE, @@ -131,6 +132,29 @@ static struct clk *main_clks[] = { &cp_clk, }; +/* SDHI (DIV4) clock */ +static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18, 24, 0, 36, 48, 10 }; + +static struct clk_div_mult_table div4_div_mult_table = { + .divisors = divisors, + .nr_divisors = ARRAY_SIZE(divisors), +}; + +static struct clk_div4_table div4_table = { + .div_mult_table = &div4_div_mult_table, +}; + +enum { + DIV4_SDH, DIV4_SD0, DIV4_SD1, DIV4_NR +}; + +struct clk div4_clks[DIV4_NR] = { + [DIV4_SDH] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 8, 0x0dff, CLK_ENABLE_ON_INIT), + [DIV4_SD0] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 4, 0x1de0, CLK_ENABLE_ON_INIT), + [DIV4_SD1] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 0, 0x1de0, CLK_ENABLE_ON_INIT), +}; + +/* MSTP */ enum { MSTP721, MSTP720, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP_NR }; static struct clk mstp_clks[MSTP_NR] = { @@ -173,6 +197,11 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("qspi", &qspi_clk), CLKDEV_CON_ID("cp", &cp_clk), + /* DIV4 */ + CLKDEV_CON_ID("sdh", &div4_clks[DIV4_SDH]), + CLKDEV_CON_ID("sd0", &div4_clks[DIV4_SD0]), + CLKDEV_CON_ID("sd1", &div4_clks[DIV4_SD1]), + /* MSTP */ CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), @@ -233,6 +262,9 @@ void __init r8a7790_clock_init(void) ret = clk_register(main_clks[k]); if (!ret) + ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table); + + if (!ret) ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); clkdev_add_table(lookups, ARRAY_SIZE(lookups));