arm: imx8ulp: add iomuxc support
Add i.MX8ULP iomuxc support
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-imx8ulp/iomux.h b/arch/arm/include/asm/arch-imx8ulp/iomux.h
new file mode 100644
index 0000000..0210489
--- /dev/null
+++ b/arch/arm/include/asm/arch-imx8ulp/iomux.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2020 NXP
+ */
+
+#ifndef __MACH_IMX8ULP_IOMUX_H__
+#define __MACH_IMX8ULP_IOMUX_H__
+
+typedef u64 iomux_cfg_t;
+
+#define MUX_CTRL_OFS_SHIFT 0
+#define MUX_CTRL_OFS_MASK ((iomux_cfg_t)0xffff << MUX_CTRL_OFS_SHIFT)
+#define MUX_SEL_INPUT_OFS_SHIFT 16
+#define MUX_SEL_INPUT_OFS_MASK ((iomux_cfg_t)0xffff << MUX_SEL_INPUT_OFS_SHIFT)
+
+#define MUX_MODE_SHIFT 32
+#define MUX_MODE_MASK ((iomux_cfg_t)0x3f << MUX_MODE_SHIFT)
+#define MUX_SEL_INPUT_SHIFT 38
+#define MUX_SEL_INPUT_MASK ((iomux_cfg_t)0xf << MUX_SEL_INPUT_SHIFT)
+#define MUX_PAD_CTRL_SHIFT 42
+#define MUX_PAD_CTRL_MASK ((iomux_cfg_t)0x7ffff << MUX_PAD_CTRL_SHIFT)
+
+#define MUX_PAD_CTRL(x) ((iomux_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_cfg_t)(mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) | \
+ ((iomux_cfg_t)(mux_mode) << MUX_MODE_SHIFT) | \
+ ((iomux_cfg_t)(pad_ctrl) << MUX_PAD_CTRL_SHIFT) | \
+ ((iomux_cfg_t)(sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT) | \
+ ((iomux_cfg_t)(sel_input) << MUX_SEL_INPUT_SHIFT))
+
+#define NEW_PAD_CTRL(cfg, pad) (((cfg) & ~MUX_PAD_CTRL_MASK) | MUX_PAD_CTRL(pad))
+
+#define IOMUX_CONFIG_MPORTS 0x20
+#define MUX_MODE_MPORTS ((iomux_v3_cfg_t)IOMUX_CONFIG_MPORTS << \ MUX_MODE_SHIFT)
+
+/* Bit definition below needs to be fixed acccording to ulp rm */
+
+#define NO_PAD_CTRL BIT(18)
+#define PAD_CTL_OBE_ENABLE BIT(17)
+#define PAD_CTL_IBE_ENABLE BIT(16)
+#define PAD_CTL_DSE BIT(6)
+#define PAD_CTL_ODE BIT(5)
+#define PAD_CTL_SRE_FAST (0 << 2)
+#define PAD_CTL_SRE_SLOW BIT(2)
+#define PAD_CTL_PUE BIT(1)
+#define PAD_CTL_PUS_UP (BIT(0) | PAD_CTL_PUE)
+#define PAD_CTL_PUS_DOWN ((0 << 0) | PAD_CTL_PUE)
+
+#define IOMUXC_PCR_MUX_ALT0 (0 << 8)
+#define IOMUXC_PCR_MUX_ALT1 (1 << 8)
+#define IOMUXC_PCR_MUX_ALT2 (2 << 8)
+#define IOMUXC_PCR_MUX_ALT3 (3 << 8)
+#define IOMUXC_PCR_MUX_ALT4 (4 << 8)
+#define IOMUXC_PCR_MUX_ALT5 (5 << 8)
+#define IOMUXC_PCR_MUX_ALT6 (6 << 8)
+#define IOMUXC_PCR_MUX_ALT7 (7 << 8)
+#define IOMUXC_PCR_MUX_ALT8 (8 << 8)
+#define IOMUXC_PCR_MUX_ALT9 (9 << 8)
+#define IOMUXC_PCR_MUX_ALT10 (10 << 8)
+#define IOMUXC_PCR_MUX_ALT11 (11 << 8)
+#define IOMUXC_PCR_MUX_ALT12 (12 << 8)
+#define IOMUXC_PCR_MUX_ALT13 (13 << 8)
+#define IOMUXC_PCR_MUX_ALT14 (14 << 8)
+#define IOMUXC_PCR_MUX_ALT15 (15 << 8)
+
+#define IOMUXC_PSMI_IMUX_ALT0 (0x0)
+#define IOMUXC_PSMI_IMUX_ALT1 (0x1)
+#define IOMUXC_PSMI_IMUX_ALT2 (0x2)
+#define IOMUXC_PSMI_IMUX_ALT3 (0x3)
+#define IOMUXC_PSMI_IMUX_ALT4 (0x4)
+#define IOMUXC_PSMI_IMUX_ALT5 (0x5)
+#define IOMUXC_PSMI_IMUX_ALT6 (0x6)
+#define IOMUXC_PSMI_IMUX_ALT7 (0x7)
+
+#define IOMUXC_PCR_MUX_ALT_SHIFT (8)
+#define IOMUXC_PCR_MUX_ALT_MASK (0xF00)
+#define IOMUXC_PSMI_IMUX_ALT_SHIFT (0)
+
+void imx8ulp_iomux_setup_pad(iomux_cfg_t pad);
+void imx8ulp_iomux_setup_multiple_pads(iomux_cfg_t const *pad_list, unsigned int count);
+#endif