From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 07/16] i.MX: iomuxv3: Add low-level pad code to headers
Date: Mon, 5 Dec 2016 06:54:35 -0800 [thread overview]
Message-ID: <1480949684-18520-8-git-send-email-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <1480949684-18520-1-git-send-email-andrew.smirnov@gmail.com>
Add a basic low-level pad configuration function that can be used to
implement early boot pin configuration code as well as shared with
various iomuxv3 and vf610 drivers.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
arch/arm/mach-imx/include/mach/iomux-v3.h | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/arch/arm/mach-imx/include/mach/iomux-v3.h b/arch/arm/mach-imx/include/mach/iomux-v3.h
index b8cc9af..3bf457f 100644
--- a/arch/arm/mach-imx/include/mach/iomux-v3.h
+++ b/arch/arm/mach-imx/include/mach/iomux-v3.h
@@ -16,6 +16,8 @@
#ifndef __MACH_IOMUX_V3_H__
#define __MACH_IOMUX_V3_H__
+#include <io.h>
+
/*
* build IOMUX_PAD structure
*
@@ -104,6 +106,32 @@ typedef u64 iomux_v3_cfg_t;
#define IOMUX_CONFIG_SION (0x1 << 4)
+#define SHARE_MUX_CONF_REG 0x1
+#define ZERO_OFFSET_VALID 0x2
+
+static inline void iomux_v3_setup_pad(void __iomem *iomux, unsigned int flags,
+ u32 mux_reg, u32 conf_reg, u32 input_reg,
+ u32 mux_val, u32 conf_val, u32 input_val)
+{
+ const bool mux_ok = !!mux_reg || (flags & ZERO_OFFSET_VALID);
+ const bool conf_ok = !!conf_reg;
+ const bool input_ok = !!input_reg;
+
+ if (flags & SHARE_MUX_CONF_REG) {
+ mux_val |= conf_val;
+ } else {
+ if (conf_ok)
+ writel(conf_val, iomux + conf_reg);
+ }
+
+ if (mux_ok)
+ writel(mux_val, iomux + mux_reg);
+
+ if (input_ok)
+ writel(input_val, iomux + input_reg);
+}
+
+
/*
* setups a single pad in the iomuxer
*/
--
2.5.5
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next prev parent reply other threads:[~2016-12-05 14:55 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-05 14:54 [PATCH 00/16] Vybrid related patches Andrey Smirnov
2016-12-05 14:54 ` [PATCH 01/16] i.MX: esdhc: Enable host->clk during initialization Andrey Smirnov
2016-12-05 14:54 ` [PATCH 02/16] i.MX: ocotp: Add provisions for storing multiple MAC addresses Andrey Smirnov
2016-12-05 15:14 ` Stefan Lengfeld
2016-12-06 14:48 ` Andrey Smirnov
2016-12-07 8:51 ` Stefan Lengfeld
2016-12-07 19:13 ` Sascha Hauer
2016-12-07 19:36 ` Andrey Smirnov
2016-12-07 20:57 ` Sascha Hauer
2016-12-07 19:32 ` Andrey Smirnov
2016-12-05 14:54 ` [PATCH 03/16] i.MX: ocotp: Initialize OCOTP as early as possible Andrey Smirnov
2016-12-05 14:54 ` [PATCH 04/16] i.MX: ocotp: Initialize 'sense_enable' to true on Vybrid Andrey Smirnov
2016-12-05 14:54 ` [PATCH 05/16] i.MX: clk: Add IMX_PLLV3_SYS_VF610 subtype Andrey Smirnov
2016-12-05 14:54 ` [PATCH 06/16] i.MX: vf610: Ramp CPU clock to maximum frequency Andrey Smirnov
2016-12-07 19:27 ` Sascha Hauer
2016-12-12 5:24 ` Andrey Smirnov
2016-12-05 14:54 ` Andrey Smirnov [this message]
2016-12-05 14:54 ` [PATCH 08/16] i.MX: iomuxv3: Add helper type to deconstruct iomux_v3_cfg_t values Andrey Smirnov
2016-12-05 14:54 ` [PATCH 09/16] i.MX: iomuxv3: Add low-level pad configuration routine Andrey Smirnov
2016-12-05 14:54 ` [PATCH 10/16] i.MX6: sabresd: Remove magic numbers in setup_uart Andrey Smirnov
2016-12-05 14:54 ` [PATCH 11/16] i.MX: iomuxv3: Use helper functions in iomux-v3.h Andrey Smirnov
2016-12-05 14:54 ` [PATCH 12/16] i.MX: vf610: Add low-level pin configuration helper Andrey Smirnov
2016-12-05 14:54 ` [PATCH 13/16] i.MX: iomux-vf610: Add missing pad definitions Andrey Smirnov
2016-12-05 14:54 ` [PATCH 14/16] i.MX: imx-usb-phy: Add VF610 OF compatiblity string Andrey Smirnov
2016-12-05 14:54 ` [PATCH 15/16] i.MX: Default CONFI_USB_IMX_PHY to 'y' on Vybrid Andrey Smirnov
2016-12-05 14:54 ` [PATCH 16/16] i.MX: imx-usb-misc: Add Vybrid support Andrey Smirnov
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