imx: add module fuse support

There are different parts from one SoC. Take i.MX6ULL for example,
some part might not have ENET, some might have; some might not have
USB, some might have. The information could be got from OCOTP,
to make one image support the different parts, we need runtime
disable linux kernel dts node and uboot driver probe if the
corresponding module not exists in the part.

Signed-off-by: Peng Fan <peng.fan@nxp.com>

2 files changed, 128 insertions, 0 deletions

diff --git a/arch/arm/include/asm/mach-imx/module_fuse.h b/arch/arm/include/asm/mach-imx/module_fuse.h
new file mode 100644
index 00000000000..a46fc3f1f8e
--- /dev/null
+++ b/arch/arm/include/asm/mach-imx/module_fuse.h
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2019 NXP
+ */
+
+#ifndef __MODULE_FUSE_H__
+#define __MODULE_FUSE_H__
+
+enum fuse_module_type {
+	MODULE_TSC,
+	MODULE_ADC1,
+	MODULE_ADC2,
+	MODULE_SIM1,
+	MODULE_SIM2,
+	MODULE_FLEXCAN1,
+	MODULE_FLEXCAN2,
+	MODULE_SPDIF,
+	MODULE_EIM,
+	MODULE_SD1,
+	MODULE_SD2,
+	MODULE_SD3,
+	MODULE_SD4,
+	MODULE_QSPI1,
+	MODULE_QSPI2,
+	MODULE_GPMI,
+	MODULE_APBHDMA,
+	MODULE_LCDIF,
+	MODULE_PXP,
+	MODULE_CSI,
+	MODULE_ENET1,
+	MODULE_ENET2,
+	MODULE_CAAM,
+	MODULE_USB_OTG1,
+	MODULE_USB_OTG2,
+	MODULE_SAI2,
+	MODULE_SAI3,
+	MODULE_BEE,
+	MODULE_UART1,
+	MODULE_UART2,
+	MODULE_UART3,
+	MODULE_UART4,
+	MODULE_UART5,
+	MODULE_UART6,
+	MODULE_UART7,
+	MODULE_UART8,
+	MODULE_PWM5,
+	MODULE_PWM6,
+	MODULE_PWM7,
+	MODULE_PWM8,
+	MODULE_ECSPI1,
+	MODULE_ECSPI2,
+	MODULE_ECSPI3,
+	MODULE_ECSPI4,
+	MODULE_ECSPI5,
+	MODULE_I2C1,
+	MODULE_I2C2,
+	MODULE_I2C3,
+	MODULE_I2C4,
+	MODULE_GPT1,
+	MODULE_GPT2,
+	MODULE_EPIT1,
+	MODULE_EPIT2,
+	MODULE_EPDC,
+	MODULE_ESAI,
+	MODULE_DCP,
+	MODULE_DCP_CRYPTO,
+};
+
+struct fuse_entry_desc {
+	enum fuse_module_type module;
+	const char *node_path;
+	u32 fuse_word_offset;
+	u32 fuse_bit_offset;
+	u32 status;
+};
+
+#if !CONFIG_IS_ENABLED(IMX_MODULE_FUSE)
+static inline u32 check_module_fused(enum fuse_module_type module)
+{
+	return 0;
+};
+
+static inline u32 esdhc_fused(ulong base_addr)
+{
+	return 0;
+};
+
+static inline u32 ecspi_fused(ulong base_addr)
+{
+	return 0;
+};
+
+static inline u32 uart_fused(ulong base_addr)
+{
+	return 0;
+};
+
+static inline u32 usb_fused(ulong base_addr)
+{
+	return 0;
+};
+
+static inline u32 qspi_fused(ulong base_addr)
+{
+	return 0;
+};
+
+static inline u32 i2c_fused(ulong base_addr)
+{
+	return 0;
+};
+
+static inline u32 enet_fused(ulong base_addr)
+{
+	return 0;
+};
+#else
+u32 check_module_fused(enum fuse_module_type module);
+u32 esdhc_fused(ulong base_addr);
+u32 ecspi_fused(ulong base_addr);
+u32 uart_fused(ulong base_addr);
+u32 usb_fused(ulong base_addr);
+u32 qspi_fused(ulong base_addr);
+u32 i2c_fused(ulong base_addr);
+u32 enet_fused(ulong base_addr);
+#endif
+#endif /* __MODULE_FUSE_H__ */
diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h
index 2a997f280d7..b91b2137745 100644
--- a/arch/arm/include/asm/mach-imx/sys_proto.h
+++ b/arch/arm/include/asm/mach-imx/sys_proto.h
@@ -9,6 +9,7 @@
 
 #include <asm/io.h>
 #include <asm/mach-imx/regs-common.h>
+#include <asm/mach-imx/module_fuse.h>
 #include <common.h>
 #include "../arch-imx/cpu.h"