imx: reorganize IMX code as other SOCs

Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/<SOC>.

This change is also coherent with the structure in kernel.

Signed-off-by: Stefano Babic <sbabic@denx.de>

CC: Fabio Estevam <fabio.estevam@nxp.com>
CC: Akshay Bhat <akshaybhat@timesys.com>
CC: Ken Lin <Ken.Lin@advantech.com.tw>
CC: Marek Vasut <marek.vasut@gmail.com>
CC: Heiko Schocher <hs@denx.de>
CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com>
CC: Christian Gmeiner <christian.gmeiner@gmail.com>
CC: Stefan Roese <sr@denx.de>
CC: Patrick Bruenn <p.bruenn@beckhoff.com>
CC: Troy Kisky <troy.kisky@boundarydevices.com>
CC: Nikita Kiryanov <nikita@compulab.co.il>
CC: Otavio Salvador <otavio@ossystems.com.br>
CC: "Eric Bénard" <eric@eukrea.com>
CC: Jagan Teki <jagan@amarulasolutions.com>
CC: Ye Li <ye.li@nxp.com>
CC: Peng Fan <peng.fan@nxp.com>
CC: Adrian Alonso <adrian.alonso@nxp.com>
CC: Alison Wang <b18965@freescale.com>
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CC: Adam Ford <aford173@gmail.com>
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CC: Breno Lima <breno.lima@nxp.com>
CC: Francesco Montefoschi <francesco.montefoschi@udoo.org>
CC: Jaehoon Chung <jh80.chung@samsung.com>
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CC: "Andrew F. Davis" <afd@ti.com>
CC: "Łukasz Majewski" <l.majewski@samsung.com>
CC: Patrice Chotard <patrice.chotard@st.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Hans de Goede <hdegoede@redhat.com>
CC: Masahiro Yamada <yamada.masahiro@socionext.com>
CC: Stephen Warren <swarren@nvidia.com>
CC: Andre Przywara <andre.przywara@arm.com>
CC: "Álvaro Fernández Rojas" <noltari@gmail.com>
CC: York Sun <york.sun@nxp.com>
CC: Xiaoliang Yang <xiaoliang.yang@nxp.com>
CC: Chen-Yu Tsai <wens@csie.org>
CC: George McCollister <george.mccollister@gmail.com>
CC: Sven Ebenfeld <sven.ebenfeld@gmail.com>
CC: Filip Brozovic <fbrozovic@gmail.com>
CC: Petr Kulhavy <brain@jikos.cz>
CC: Eric Nelson <eric@nelint.com>
CC: Bai Ping <ping.bai@nxp.com>
CC: Anson Huang <Anson.Huang@nxp.com>
CC: Sanchayan Maity <maitysanchayan@gmail.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Patrick Delaunay <patrick.delaunay@st.com>
CC: Gary Bisson <gary.bisson@boundarydevices.com>
CC: Alexander Graf <agraf@suse.de>
CC: u-boot@lists.denx.de
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

1 files changed, 270 insertions, 0 deletions

diff --git a/arch/arm/include/asm/mach-imx/iomux-v3.h b/arch/arm/include/asm/mach-imx/iomux-v3.h
new file mode 100644
index 0000000..ad35e01
--- /dev/null
+++ b/arch/arm/include/asm/mach-imx/iomux-v3.h
@@ -0,0 +1,270 @@
+/*
+ * Based on Linux i.MX iomux-v3.h file:
+ * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
+ *			<armlinux@phytec.de>
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __MACH_IOMUX_V3_H__
+#define __MACH_IOMUX_V3_H__
+
+#include <common.h>
+
+/*
+ *	build IOMUX_PAD structure
+ *
+ * This iomux scheme is based around pads, which are the physical balls
+ * on the processor.
+ *
+ * - Each pad has a pad control register (IOMUXC_SW_PAD_CTRL_x) which controls
+ *   things like driving strength and pullup/pulldown.
+ * - Each pad can have but not necessarily does have an output routing register
+ *   (IOMUXC_SW_MUX_CTL_PAD_x).
+ * - Each pad can have but not necessarily does have an input routing register
+ *   (IOMUXC_x_SELECT_INPUT)
+ *
+ * The three register sets do not have a fixed offset to each other,
+ * hence we order this table by pad control registers (which all pads
+ * have) and put the optional i/o routing registers into additional
+ * fields.
+ *
+ * The naming convention for the pad modes is SOC_PAD_<padname>__<padmode>
+ * If <padname> or <padmode> refers to a GPIO, it is named GPIO_<unit>_<num>
+ *
+ * IOMUX/PAD Bit field definitions
+ *
+ * MUX_CTRL_OFS:	    0..11 (12)
+ * PAD_CTRL_OFS:	   12..23 (12)
+ * SEL_INPUT_OFS:	   24..35 (12)
+ * MUX_MODE + SION + LPSR: 36..41  (6)
+ * PAD_CTRL + NO_PAD_CTRL: 42..59 (18)
+ * SEL_INP:		   60..63  (4)
+*/
+
+typedef u64 iomux_v3_cfg_t;
+
+#define MUX_CTRL_OFS_SHIFT	0
+#define MUX_CTRL_OFS_MASK	((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT)
+#define MUX_PAD_CTRL_OFS_SHIFT	12
+#define MUX_PAD_CTRL_OFS_MASK	((iomux_v3_cfg_t)0xfff << \
+	MUX_PAD_CTRL_OFS_SHIFT)
+#define MUX_SEL_INPUT_OFS_SHIFT	24
+#define MUX_SEL_INPUT_OFS_MASK	((iomux_v3_cfg_t)0xfff << \
+	MUX_SEL_INPUT_OFS_SHIFT)
+
+#define MUX_MODE_SHIFT		36
+#define MUX_MODE_MASK		((iomux_v3_cfg_t)0x3f << MUX_MODE_SHIFT)
+#define MUX_PAD_CTRL_SHIFT	42
+#define MUX_PAD_CTRL_MASK	((iomux_v3_cfg_t)0x3ffff << MUX_PAD_CTRL_SHIFT)
+#define MUX_SEL_INPUT_SHIFT	60
+#define MUX_SEL_INPUT_MASK	((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT)
+
+#define MUX_MODE_SION		((iomux_v3_cfg_t)IOMUX_CONFIG_SION << \
+	MUX_MODE_SHIFT)
+#define MUX_PAD_CTRL(x)		((iomux_v3_cfg_t)(x) << MUX_PAD_CTRL_SHIFT)
+
+#define IOMUX_PAD(pad_ctrl_ofs, mux_ctrl_ofs, mux_mode, sel_input_ofs,	\
+		sel_input, pad_ctrl)					\
+	(((iomux_v3_cfg_t)(mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT)     |	\
+	((iomux_v3_cfg_t)(mux_mode)      << MUX_MODE_SHIFT)         |	\
+	((iomux_v3_cfg_t)(pad_ctrl_ofs)  << MUX_PAD_CTRL_OFS_SHIFT) |	\
+	((iomux_v3_cfg_t)(pad_ctrl)      << MUX_PAD_CTRL_SHIFT)     |	\
+	((iomux_v3_cfg_t)(sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT)|	\
+	((iomux_v3_cfg_t)(sel_input)     << MUX_SEL_INPUT_SHIFT))
+
+#define NEW_PAD_CTRL(cfg, pad)	(((cfg) & ~MUX_PAD_CTRL_MASK) | \
+					MUX_PAD_CTRL(pad))
+
+#define __NA_			0x000
+#define NO_MUX_I		0
+#define NO_PAD_I		0
+
+#define NO_PAD_CTRL		(1 << 17)
+
+#define IOMUX_CONFIG_LPSR       0x20
+#define MUX_MODE_LPSR           ((iomux_v3_cfg_t)IOMUX_CONFIG_LPSR << \
+				MUX_MODE_SHIFT)
+#ifdef CONFIG_MX7
+
+#define IOMUX_LPSR_SEL_INPUT_OFS 0x70000
+
+#define PAD_CTL_DSE_1P8V_140OHM   (0x0<<0)
+#define PAD_CTL_DSE_1P8V_35OHM    (0x1<<0)
+#define PAD_CTL_DSE_1P8V_70OHM    (0x2<<0)
+#define PAD_CTL_DSE_1P8V_23OHM    (0x3<<0)
+
+#define PAD_CTL_DSE_3P3V_196OHM   (0x0<<0)
+#define PAD_CTL_DSE_3P3V_49OHM    (0x1<<0)
+#define PAD_CTL_DSE_3P3V_98OHM    (0x2<<0)
+#define PAD_CTL_DSE_3P3V_32OHM    (0x3<<0)
+
+#define PAD_CTL_SRE_FAST     (0 << 2)
+#define PAD_CTL_SRE_SLOW     (0x1 << 2)
+
+#define PAD_CTL_HYS       (0x1 << 3)
+#define PAD_CTL_PUE       (0x1 << 4)
+
+#define PAD_CTL_PUS_PD100KOHM  ((0x0 << 5) | PAD_CTL_PUE)
+#define PAD_CTL_PUS_PU5KOHM    ((0x1 << 5) | PAD_CTL_PUE)
+#define PAD_CTL_PUS_PU47KOHM   ((0x2 << 5) | PAD_CTL_PUE)
+#define PAD_CTL_PUS_PU100KOHM  ((0x3 << 5) | PAD_CTL_PUE)
+
+#else
+
+#ifdef CONFIG_MX6
+
+#define PAD_CTL_HYS		(1 << 16)
+
+#define PAD_CTL_PUS_100K_DOWN	(0 << 14 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_47K_UP	(1 << 14 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_100K_UP	(2 << 14 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_22K_UP	(3 << 14 | PAD_CTL_PUE)
+#define PAD_CTL_PUE		(1 << 13 | PAD_CTL_PKE)
+#define PAD_CTL_PKE		(1 << 12)
+
+#define PAD_CTL_ODE		(1 << 11)
+
+#if defined(CONFIG_MX6SX) || defined(CONFIG_MX6UL)
+#define PAD_CTL_SPEED_LOW	(0 << 6)
+#else
+#define PAD_CTL_SPEED_LOW	(1 << 6)
+#endif
+#define PAD_CTL_SPEED_MED	(2 << 6)
+#define PAD_CTL_SPEED_HIGH	(3 << 6)
+
+#define PAD_CTL_DSE_DISABLE	(0 << 3)
+#define PAD_CTL_DSE_240ohm	(1 << 3)
+#define PAD_CTL_DSE_120ohm	(2 << 3)
+#define PAD_CTL_DSE_80ohm	(3 << 3)
+#define PAD_CTL_DSE_60ohm	(4 << 3)
+#define PAD_CTL_DSE_48ohm	(5 << 3)
+#define PAD_CTL_DSE_40ohm	(6 << 3)
+#define PAD_CTL_DSE_34ohm	(7 << 3)
+
+/* i.MX6SL/SLL */
+#define PAD_CTL_LVE		(1 << 1)
+#define PAD_CTL_LVE_BIT		(1 << 22)
+
+/* i.MX6SLL */
+#define PAD_CTL_IPD_BIT		(1 << 27)
+
+#elif defined(CONFIG_VF610)
+
+#define PAD_MUX_MODE_SHIFT	20
+
+#define PAD_CTL_INPUT_DIFFERENTIAL (1 << 16)
+
+#define PAD_CTL_SPEED_MED	(1 << 12)
+#define PAD_CTL_SPEED_HIGH	(3 << 12)
+
+#define PAD_CTL_SRE		(1 << 11)
+
+#define PAD_CTL_ODE		(1 << 10)
+
+#define PAD_CTL_DSE_150ohm	(1 << 6)
+#define PAD_CTL_DSE_75ohm	(2 << 6)
+#define PAD_CTL_DSE_50ohm	(3 << 6)
+#define PAD_CTL_DSE_37ohm	(4 << 6)
+#define PAD_CTL_DSE_30ohm	(5 << 6)
+#define PAD_CTL_DSE_25ohm	(6 << 6)
+#define PAD_CTL_DSE_20ohm	(7 << 6)
+
+#define PAD_CTL_PUS_47K_UP	(1 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_100K_UP	(2 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_22K_UP	(3 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PKE		(1 << 3)
+#define PAD_CTL_PUE		(1 << 2 | PAD_CTL_PKE)
+
+#define PAD_CTL_OBE_IBE_ENABLE	(3 << 0)
+#define PAD_CTL_OBE_ENABLE	(1 << 1)
+#define PAD_CTL_IBE_ENABLE	(1 << 0)
+
+#else
+
+#define PAD_CTL_DVS		(1 << 13)
+#define PAD_CTL_INPUT_DDR	(1 << 9)
+#define PAD_CTL_HYS		(1 << 8)
+
+#define PAD_CTL_PKE		(1 << 7)
+#define PAD_CTL_PUE		(1 << 6 | PAD_CTL_PKE)
+#define PAD_CTL_PUS_100K_DOWN	(0 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_47K_UP	(1 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_100K_UP	(2 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_22K_UP	(3 << 4 | PAD_CTL_PUE)
+
+#define PAD_CTL_ODE		(1 << 3)
+
+#define PAD_CTL_DSE_LOW		(0 << 1)
+#define PAD_CTL_DSE_MED		(1 << 1)
+#define PAD_CTL_DSE_HIGH	(2 << 1)
+#define PAD_CTL_DSE_MAX		(3 << 1)
+
+#endif
+
+#define PAD_CTL_SRE_SLOW	(0 << 0)
+#define PAD_CTL_SRE_FAST	(1 << 0)
+
+#endif
+
+#define IOMUX_CONFIG_SION	0x10
+
+#define GPIO_PIN_MASK		0x1f
+#define GPIO_PORT_SHIFT		5
+#define GPIO_PORT_MASK		(0x7 << GPIO_PORT_SHIFT)
+#define GPIO_PORTA		(0 << GPIO_PORT_SHIFT)
+#define GPIO_PORTB		(1 << GPIO_PORT_SHIFT)
+#define GPIO_PORTC		(2 << GPIO_PORT_SHIFT)
+#define GPIO_PORTD		(3 << GPIO_PORT_SHIFT)
+#define GPIO_PORTE		(4 << GPIO_PORT_SHIFT)
+#define GPIO_PORTF		(5 << GPIO_PORT_SHIFT)
+
+void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
+void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
+				     unsigned count);
+/*
+* Set bits for general purpose registers
+*/
+void imx_iomux_set_gpr_register(int group, int start_bit,
+					 int num_bits, int value);
+#ifdef CONFIG_IOMUX_SHARE_CONF_REG
+void imx_iomux_gpio_set_direction(unsigned int gpio,
+				unsigned int direction);
+void imx_iomux_gpio_get_function(unsigned int gpio,
+				u32 *gpio_state);
+#endif
+
+/* macros for declaring and using pinmux array */
+#if defined(CONFIG_MX6QDL)
+#define IOMUX_PADS(x) (MX6Q_##x), (MX6DL_##x)
+#define SETUP_IOMUX_PAD(def)					\
+if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) {				\
+	imx_iomux_v3_setup_pad(MX6Q_##def);			\
+} else {							\
+	imx_iomux_v3_setup_pad(MX6DL_##def);			\
+}
+#define SETUP_IOMUX_PADS(x)					\
+	imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x)/2)
+#elif defined(CONFIG_MX6Q) || defined(CONFIG_MX6D)
+#define IOMUX_PADS(x) MX6Q_##x
+#define SETUP_IOMUX_PAD(def)					\
+	imx_iomux_v3_setup_pad(MX6Q_##def);
+#define SETUP_IOMUX_PADS(x)					\
+	imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x))
+#elif defined(CONFIG_MX6UL)
+#define IOMUX_PADS(x) MX6_##x
+#define SETUP_IOMUX_PAD(def)					\
+	imx_iomux_v3_setup_pad(MX6_##def);
+#define SETUP_IOMUX_PADS(x)					\
+	imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x))
+#else
+#define IOMUX_PADS(x) MX6DL_##x
+#define SETUP_IOMUX_PAD(def)					\
+	imx_iomux_v3_setup_pad(MX6DL_##def);
+#define SETUP_IOMUX_PADS(x)					\
+	imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x))
+#endif
+
+#endif	/* __MACH_IOMUX_V3_H__*/