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From: Mikko Perttunen <mperttunen@nvidia.com>
To: <swarren@wwwdotorg.org>, <thierry.reding@gmail.com>,
	<tj@kernel.org>, <hdegoede@redhat.com>
Cc: <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-tegra@vger.kernel.org>, <linux-ide@vger.kernel.org>,
	Mikko Perttunen <mperttunen@nvidia.com>
Subject: [PATCH v3 4/8] clk: tegra: Enable hardware control of SATA PLL
Date: Wed, 16 Jul 2014 11:54:19 +0300	[thread overview]
Message-ID: <1405500863-19696-5-git-send-email-mperttunen@nvidia.com> (raw)
In-Reply-To: <1405500863-19696-1-git-send-email-mperttunen@nvidia.com>

This makes the SATA PLL be controlled by hardware instead of software.
This is required for working SATA support.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
Already ACKed.

 drivers/clk/tegra/clk-pll.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index 637b62c..f070c36 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -110,6 +110,9 @@
 #define XUSBIO_PLL_CFG0_SEQ_ENABLE		BIT(24)
 #define XUSBIO_PLL_CFG0_SEQ_START_STATE		BIT(25)
 
+#define SATA_PLL_CFG0		0x490
+#define SATA_PLL_CFG0_PADPLL_RESET_SWCTL	BIT(0)
+
 #define PLLE_MISC_PLLE_PTS	BIT(8)
 #define PLLE_MISC_IDDQ_SW_VALUE	BIT(13)
 #define PLLE_MISC_IDDQ_SW_CTRL	BIT(14)
@@ -1361,6 +1364,11 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw)
 	val |= XUSBIO_PLL_CFG0_SEQ_ENABLE;
 	pll_writel(val, XUSBIO_PLL_CFG0, pll);
 
+	/* Enable hw control of SATA pll */
+	val = pll_readl(SATA_PLL_CFG0, pll);
+	val &= ~SATA_PLL_CFG0_PADPLL_RESET_SWCTL;
+	pll_writel(val, SATA_PLL_CFG0, pll);
+
 out:
 	if (pll->lock)
 		spin_unlock_irqrestore(pll->lock, flags);
-- 
1.8.1.5


  parent reply	other threads:[~2014-07-16  8:55 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-16  8:54 [PATCH v3 0/8] Serial ATA support for NVIDIA Tegra124 Mikko Perttunen
2014-07-16  8:54 ` [PATCH v3 1/8] of: Add NVIDIA Tegra SATA controller binding Mikko Perttunen
2014-07-16  9:26   ` Varka Bhadram
2014-07-16 11:42     ` Mikko Perttunen
2014-07-16 11:40   ` [PATCH v4 " Mikko Perttunen
2014-07-16 11:49     ` Hans de Goede
2014-07-16 13:13       ` Thierry Reding
2014-07-16 14:47         ` Hans de Goede
2014-07-16 19:51           ` Thierry Reding
2014-07-17  6:51             ` Hans de Goede
2014-07-17  7:39               ` Thierry Reding
2014-07-17  7:56                 ` Mikko Perttunen
2014-07-17 10:23                 ` Hans de Goede
2014-07-17 10:52                   ` Thierry Reding
2014-07-17 11:42                     ` Hans de Goede
2014-07-17 11:48                       ` Hans de Goede
2014-07-17 11:35                   ` Mikko Perttunen
2014-07-18  7:11   ` [PATCH v5 " Mikko Perttunen
2014-07-18  7:16     ` Mikko Perttunen
2014-07-18 10:28       ` Hans de Goede
2014-07-18 11:32         ` Mikko Perttunen
2014-07-18 15:06         ` Thierry Reding
2014-07-18 21:54           ` Tejun Heo
2014-07-22 21:03           ` Stephen Warren
2014-07-18 10:26     ` Hans de Goede
2014-07-16  8:54 ` [PATCH v3 2/8] ARM: tegra: Add SATA controller to Tegra124 device tree Mikko Perttunen
2014-08-25 17:23   ` Stephen Warren
2014-08-26  7:14     ` Mikko Perttunen
2014-07-16  8:54 ` [PATCH v3 3/8] ARM: tegra: Add SATA and SATA power to Jetson TK1 " Mikko Perttunen
2014-07-16  8:54 ` Mikko Perttunen [this message]
2014-07-16  8:54 ` [PATCH v3 5/8] clk: tegra: Add SATA clocks to Tegra124 initialization table Mikko Perttunen
2014-07-16  8:54 ` [PATCH v3 6/8] ata: ahci_platform: Increase AHCI_MAX_CLKS to 4 Mikko Perttunen
2014-07-16  8:54 ` [PATCH v3 7/8] ata: Add support for the Tegra124 SATA controller Mikko Perttunen
2014-07-16 11:14   ` Hans de Goede
2014-07-16 11:42     ` Thierry Reding
2014-07-16 11:40   ` [PATCH v4 " Mikko Perttunen
2014-07-18  7:12   ` [PATCH v5 " Mikko Perttunen
2014-07-18 10:26     ` Hans de Goede
2014-07-18 10:49       ` Mikko Perttunen
2014-07-16  8:54 ` [PATCH v3 8/8] ARM: tegra: Add options for Tegra AHCI support to tegra_defconfig Mikko Perttunen
2014-08-26 17:46   ` Stephen Warren

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