--- /dev/null
+/*
+ * 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: 36..40 (5)
+ * PAD_CTRL + NO_PAD_CTRL: 41..58 (18)
+ * SEL_INP: 59..62 (4)
+ * reserved: 63 (1)
+*/
+
+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)0x1f << MUX_MODE_SHIFT)
+#define MUX_PAD_CTRL_SHIFT 41
+#define MUX_PAD_CTRL_MASK ((iomux_v3_cfg_t)0x3ffff << MUX_PAD_CTRL_SHIFT)
+#define MUX_SEL_INPUT_SHIFT 59
+#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)
+
+#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)
+
+#define PAD_CTL_SPEED_LOW (1 << 6)
+#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)
+
+#elif defined(CONFIG_VF610)
+
+#define PAD_MUX_MODE_SHIFT 20
+
+#define PAD_CTL_SPEED_MED (1 << 12)
+#define PAD_CTL_SPEED_HIGH (3 << 12)
+
+#define PAD_CTL_DSE_50ohm (3 << 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_PKE (1 << 3)
+#define PAD_CTL_PUE (1 << 2 | PAD_CTL_PKE)
+
+#define PAD_CTL_OBE_IBE_ENABLE (3 << 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)
+
+#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);
+
+#endif /* __MACH_IOMUX_V3_H__*/
Code Review / kvmfornfv.git / blobdiff