Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753523AbaGHHax (ORCPT ); Tue, 8 Jul 2014 03:30:53 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:13779 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752753AbaGHHav (ORCPT ); Tue, 8 Jul 2014 03:30:51 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Tue, 08 Jul 2014 00:20:07 -0700 From: Mikko Perttunen To: , , , CC: , , , , , Mikko Perttunen Subject: [PATCH] clk: tegra: Use XUSB-compatible SATA PLL sequence Date: Tue, 8 Jul 2014 10:30:15 +0300 Message-ID: <1404804615-23587-1-git-send-email-mperttunen@nvidia.com> X-Mailer: git-send-email 1.8.1.5 In-Reply-To: References: X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use a sequence for enabling hardware control of the SATA PLL that works both when using the SATA lane with SATA and when using it with XUSB. Signed-off-by: Mikko Perttunen --- Andrew: yes, it does :) Peter: Feel free to squash if that works for you. drivers/clk/tegra/clk-pll.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c index f070c36..c7c6d8f 100644 --- a/drivers/clk/tegra/clk-pll.c +++ b/drivers/clk/tegra/clk-pll.c @@ -112,6 +112,9 @@ #define SATA_PLL_CFG0 0x490 #define SATA_PLL_CFG0_PADPLL_RESET_SWCTL BIT(0) +#define SATA_PLL_CFG0_PADPLL_USE_LOCKDET BIT(2) +#define SATA_PLL_CFG0_SEQ_ENABLE BIT(24) +#define SATA_PLL_CFG0_SEQ_START_STATE BIT(25) #define PLLE_MISC_PLLE_PTS BIT(8) #define PLLE_MISC_IDDQ_SW_VALUE BIT(13) @@ -1367,6 +1370,14 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw) /* Enable hw control of SATA pll */ val = pll_readl(SATA_PLL_CFG0, pll); val &= ~SATA_PLL_CFG0_PADPLL_RESET_SWCTL; + val |= SATA_PLL_CFG0_PADPLL_USE_LOCKDET; + val |= SATA_PLL_CFG0_SEQ_START_STATE; + pll_writel(val, SATA_PLL_CFG0, pll); + + udelay(1); + + val = pll_readl(SATA_PLL_CFG0, pll); + val |= SATA_PLL_CFG0_SEQ_ENABLE; pll_writel(val, SATA_PLL_CFG0, pll); out: -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/