[U-Boot] [PATCH v2 1/4] 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 ---
V2: Fix build for aarch64
arch/arm/include/asm/mach-imx/module_fuse.h | 127 +++++++++++ arch/arm/include/asm/mach-imx/sys_proto.h | 1 + arch/arm/mach-imx/Kconfig | 7 + arch/arm/mach-imx/mx6/Makefile | 1 + arch/arm/mach-imx/mx6/module_fuse.c | 322 ++++++++++++++++++++++++++++ 5 files changed, 458 insertions(+) create mode 100644 arch/arm/include/asm/mach-imx/module_fuse.h create mode 100644 arch/arm/mach-imx/mx6/module_fuse.c
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 0000000000..6c92cb40d6 --- /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 !IS_ENABLED(CONFIG_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 4925dd7894..6ebe5b5479 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"
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index aeb5493488..a5b6f51ef0 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -27,6 +27,13 @@ config IMX_BOOTAUX help bootaux [addr] to boot auxiliary core.
+config IMX_MODULE_FUSE + bool "i.MX Module Fuse" + depends on ARCH_MX6 + help + i.MX module fuse to runtime disable some driver, including + Linux OS device node. + config USE_IMXIMG_PLUGIN bool "Use imximage plugin code" depends on ARCH_MX7 || ARCH_MX6 || ARCH_MX7ULP diff --git a/arch/arm/mach-imx/mx6/Makefile b/arch/arm/mach-imx/mx6/Makefile index 81e2913d14..7ea8f91e4f 100644 --- a/arch/arm/mach-imx/mx6/Makefile +++ b/arch/arm/mach-imx/mx6/Makefile @@ -6,6 +6,7 @@ # (C) Copyright 2011 Freescale Semiconductor, Inc.
obj-y := soc.o clock.o +obj-$(CONFIG_IMX_MODULE_FUSE) += module_fuse.o obj-$(CONFIG_SPL_BUILD) += ddr.o obj-$(CONFIG_MP) += mp.o obj-$(CONFIG_MX6UL_LITESOM) += litesom.o diff --git a/arch/arm/mach-imx/mx6/module_fuse.c b/arch/arm/mach-imx/mx6/module_fuse.c new file mode 100644 index 0000000000..3e94416065 --- /dev/null +++ b/arch/arm/mach-imx/mx6/module_fuse.c @@ -0,0 +1,322 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2019 NXP + */ + +#include <common.h> +#include <fdt_support.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/imx-regs.h> +#include <asm/mach-imx/module_fuse.h> +#include <linux/errno.h> + +static struct fuse_entry_desc mx6_fuse_descs[] = { +#if defined(CONFIG_MX6ULL) + {MODULE_TSC, "/soc/aips-bus@2000000/tsc@2040000", 0x430, 22}, + {MODULE_ADC2, "/soc/aips-bus@2100000/adc@219c000", 0x430, 23}, + {MODULE_EPDC, "/soc/aips-bus@2200000/epdc@228c000", 0x430, 24}, + {MODULE_ESAI, "/soc/aips-bus@2000000/spba-bus@2000000/esai@2024000", 0x430, 25}, + {MODULE_FLEXCAN1, "/soc/aips-bus@2000000/can@2090000", 0x430, 26}, + {MODULE_FLEXCAN2, "/soc/aips-bus@2000000/can@2094000", 0x430, 27}, + {MODULE_SPDIF, "/soc/aips-bus@2000000/spba-bus@2000000/spdif@2004000", 0x440, 2}, + {MODULE_EIM, "/soc/aips-bus@2100000/weim@21b8000", 0x440, 3}, + {MODULE_SD1, "/soc/aips-bus@2100000/usdhc@2190000", 0x440, 4}, + {MODULE_SD2, "/soc/aips-bus@2100000/usdhc@2194000", 0x440, 5}, + {MODULE_QSPI1, "/soc/aips-bus@2100000/qspi@21e0000", 0x440, 6}, + {MODULE_GPMI, "/soc/gpmi-nand@1806000", 0x440, 7}, + {MODULE_APBHDMA, "/soc/dma-apbh@1804000", 0x440, 7}, + {MODULE_LCDIF, "/soc/aips-bus@2100000/lcdif@21c8000", 0x440, 8}, + {MODULE_PXP, "/soc/aips-bus@2100000/pxp@21cc000", 0x440, 9}, + {MODULE_CSI, "/soc/aips-bus@2100000/csi@21c4000", 0x440, 10}, + {MODULE_ADC1, "/soc/aips-bus@2100000/adc@2198000", 0x440, 11}, + {MODULE_ENET1, "/soc/aips-bus@2100000/ethernet@2188000", 0x440, 12}, + {MODULE_ENET2, "/soc/aips-bus@2000000/ethernet@20b4000", 0x440, 13}, + {MODULE_DCP, "/soc/aips-bus@2200000/dcp@2280000", 0x440, 14}, + {MODULE_USB_OTG2, "/soc/aips-bus@2100000/usb@2184200", 0x440, 15}, + {MODULE_SAI2, "/soc/aips-bus@2000000/spba-bus@2000000/sai@202c000", 0x440, 24}, + {MODULE_SAI3, "/soc/aips-bus@2000000/spba-bus@2000000/sai@2030000", 0x440, 24}, + {MODULE_DCP_CRYPTO, "/soc/aips-bus@2200000/dcp@2280000", 0x440, 25}, + {MODULE_UART5, "/soc/aips-bus@2100000/serial@21f4000", 0x440, 26}, + {MODULE_UART6, "/soc/aips-bus@2100000/serial@21fc000", 0x440, 26}, + {MODULE_UART7, "/soc/aips-bus@2000000/spba-bus@2000000/serial@2018000", 0x440, 26}, + {MODULE_UART8, "/soc/aips-bus@2200000/serial@2288000", 0x440, 26}, + {MODULE_PWM5, "/soc/aips-bus@2000000/pwm@20f0000", 0x440, 27}, + {MODULE_PWM6, "/soc/aips-bus@2000000/pwm@20f4000", 0x440, 27}, + {MODULE_PWM7, "/soc/aips-bus@2000000/pwm@20f8000", 0x440, 27}, + {MODULE_PWM8, "/soc/aips-bus@2000000/pwm@20fc000", 0x440, 27}, + {MODULE_ECSPI3, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2010000", 0x440, 28}, + {MODULE_ECSPI4, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2014000", 0x440, 28}, + {MODULE_I2C3, "/soc/aips-bus@2100000/i2c@21a8000", 0x440, 29}, + {MODULE_I2C4, "/soc/aips-bus@2100000/i2c@21f8000", 0x440, 29}, + {MODULE_GPT2, "/soc/aips-bus@2000000/gpt@20e8000", 0x440, 30}, + {MODULE_EPIT2, "/soc/aips-bus@2000000/epit@20d4000", 0x440, 31}, + /* Paths for older imx tree: */ + {MODULE_TSC, "/soc/aips-bus@02000000/tsc@02040000", 0x430, 22}, + {MODULE_ADC2, "/soc/aips-bus@02100000/adc@0219c000", 0x430, 23}, + {MODULE_EPDC, "/soc/aips-bus@02200000/epdc@0228c000", 0x430, 24}, + {MODULE_ESAI, "/soc/aips-bus@02000000/spba-bus@02000000/esai@02024000", 0x430, 25}, + {MODULE_FLEXCAN1, "/soc/aips-bus@02000000/can@02090000", 0x430, 26}, + {MODULE_FLEXCAN2, "/soc/aips-bus@02000000/can@02094000", 0x430, 27}, + {MODULE_SPDIF, "/soc/aips-bus@02000000/spba-bus@02000000/spdif@02004000", 0x440, 2}, + {MODULE_EIM, "/soc/aips-bus@02100000/weim@021b8000", 0x440, 3}, + {MODULE_SD1, "/soc/aips-bus@02100000/usdhc@02190000", 0x440, 4}, + {MODULE_SD2, "/soc/aips-bus@02100000/usdhc@02194000", 0x440, 5}, + {MODULE_QSPI1, "/soc/aips-bus@02100000/qspi@021e0000", 0x440, 6}, + {MODULE_GPMI, "/soc/gpmi-nand@01806000", 0x440, 7}, + {MODULE_APBHDMA, "/soc/dma-apbh@01804000", 0x440, 7}, + {MODULE_LCDIF, "/soc/aips-bus@02100000/lcdif@021c8000", 0x440, 8}, + {MODULE_PXP, "/soc/aips-bus@02100000/pxp@021cc000", 0x440, 9}, + {MODULE_CSI, "/soc/aips-bus@02100000/csi@021c4000", 0x440, 10}, + {MODULE_ADC1, "/soc/aips-bus@02100000/adc@02198000", 0x440, 11}, + {MODULE_ENET1, "/soc/aips-bus@02100000/ethernet@02188000", 0x440, 12}, + {MODULE_ENET2, "/soc/aips-bus@02000000/ethernet@020b4000", 0x440, 13}, + {MODULE_DCP, "/soc/aips-bus@02200000/dcp@02280000", 0x440, 14}, + {MODULE_USB_OTG2, "/soc/aips-bus@02100000/usb@02184200", 0x440, 15}, + {MODULE_SAI2, "/soc/aips-bus@02000000/spba-bus@02000000/sai@0202c000", 0x440, 24}, + {MODULE_SAI3, "/soc/aips-bus@02000000/spba-bus@02000000/sai@02030000", 0x440, 24}, + {MODULE_DCP_CRYPTO, "/soc/aips-bus@02200000/dcp@02280000", 0x440, 25}, + {MODULE_UART5, "/soc/aips-bus@02100000/serial@021f4000", 0x440, 26}, + {MODULE_UART6, "/soc/aips-bus@02100000/serial@021fc000", 0x440, 26}, + {MODULE_UART7, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02018000", 0x440, 26}, + {MODULE_UART8, "/soc/aips-bus@02200000/serial@02288000", 0x440, 26}, + {MODULE_PWM5, "/soc/aips-bus@02000000/pwm@020f0000", 0x440, 27}, + {MODULE_PWM6, "/soc/aips-bus@02000000/pwm@020f4000", 0x440, 27}, + {MODULE_PWM7, "/soc/aips-bus@02000000/pwm@020f8000", 0x440, 27}, + {MODULE_PWM8, "/soc/aips-bus@02000000/pwm@020fc000", 0x440, 27}, + {MODULE_ECSPI3, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02010000", 0x440, 28}, + {MODULE_ECSPI4, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02014000", 0x440, 28}, + {MODULE_I2C3, "/soc/aips-bus@02100000/i2c@021a8000", 0x440, 29}, + {MODULE_I2C4, "/soc/aips-bus@02100000/i2c@021f8000", 0x440, 29}, + {MODULE_GPT2, "/soc/aips-bus@02000000/gpt@020e8000", 0x440, 30}, + {MODULE_EPIT2, "/soc/aips-bus@02000000/epit@020d4000", 0x440, 31}, +#elif defined(CONFIG_MX6UL) + {MODULE_TSC, "/soc/aips-bus@2000000/tsc@2040000", 0x430, 22}, + {MODULE_ADC2, "/soc/aips-bus@2100000/adc@219c000", 0x430, 23}, + {MODULE_SIM1, "/soc/aips-bus@2100000/sim@218c000", 0x430, 24}, + {MODULE_SIM2, "/soc/aips-bus@2100000/sim@21b4000", 0x430, 25}, + {MODULE_FLEXCAN1, "/soc/aips-bus@2000000/can@2090000", 0x430, 26}, + {MODULE_FLEXCAN2, "/soc/aips-bus@2000000/can@2094000", 0x430, 27}, + {MODULE_SPDIF, "/soc/aips-bus@2000000/spba-bus@2000000/spdif@2004000", 0x440, 2}, + {MODULE_EIM, "/soc/aips-bus@2100000/weim@21b8000", 0x440, 3}, + {MODULE_SD1, "/soc/aips-bus@2100000/usdhc@2190000", 0x440, 4}, + {MODULE_SD2, "/soc/aips-bus@2100000/usdhc@2194000", 0x440, 5}, + {MODULE_QSPI1, "/soc/aips-bus@2100000/qspi@21e0000", 0x440, 6}, + {MODULE_GPMI, "/soc/gpmi-nand@1806000", 0x440, 7}, + {MODULE_APBHDMA, "/soc/dma-apbh@1804000", 0x440, 7}, + {MODULE_LCDIF, "/soc/aips-bus@2100000/lcdif@21c8000", 0x440, 8}, + {MODULE_PXP, "/soc/aips-bus@2100000/pxp@21cc000", 0x440, 9}, + {MODULE_CSI, "/soc/aips-bus@2100000/csi@21c4000", 0x440, 10}, + {MODULE_ADC1, "/soc/aips-bus@2100000/adc@2198000", 0x440, 11}, + {MODULE_ENET1, "/soc/aips-bus@2100000/ethernet@2188000", 0x440, 12}, + {MODULE_ENET2, "/soc/aips-bus@2000000/ethernet@20b4000", 0x440, 13}, + {MODULE_CAAM, "/soc/aips-bus@2100000/caam@2140000", 0x440, 14}, + {MODULE_USB_OTG2, "/soc/aips-bus@2100000/usb@2184200", 0x440, 15}, + {MODULE_SAI2, "/soc/aips-bus@2000000/spba-bus@2000000/sai@202c000", 0x440, 24}, + {MODULE_SAI3, "/soc/aips-bus@2000000/spba-bus@2000000/sai@2030000", 0x440, 24}, + {MODULE_BEE, "/soc/aips-bus@2000000/bee@2044000", 0x440, 25}, + {MODULE_UART5, "/soc/aips-bus@2100000/serial@21f4000", 0x440, 26}, + {MODULE_UART6, "/soc/aips-bus@2100000/serial@21fc000", 0x440, 26}, + {MODULE_UART7, "/soc/aips-bus@2000000/spba-bus@2000000/serial@2018000", 0x440, 26}, + {MODULE_UART8, "/soc/aips-bus@2000000/spba-bus@2000000/serial@2024000", 0x440, 26}, + {MODULE_PWM5, "/soc/aips-bus@2000000/pwm@20f0000", 0x440, 27}, + {MODULE_PWM6, "/soc/aips-bus@2000000/pwm@20f4000", 0x440, 27}, + {MODULE_PWM7, "/soc/aips-bus@2000000/pwm@20f8000", 0x440, 27}, + {MODULE_PWM8, "/soc/aips-bus@2000000/pwm@20fc000", 0x440, 27}, + {MODULE_ECSPI3, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2010000", 0x440, 28}, + {MODULE_ECSPI4, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2014000", 0x440, 28}, + {MODULE_I2C3, "/soc/aips-bus@2100000/i2c@21a8000", 0x440, 29}, + {MODULE_I2C4, "/soc/aips-bus@2100000/i2c@21f8000", 0x440, 29}, + {MODULE_GPT2, "/soc/aips-bus@2000000/gpt@20e8000", 0x440, 30}, + {MODULE_EPIT2, "/soc/aips-bus@2000000/epit@20d4000", 0x440, 31}, + /* Paths for older imx tree: */ + {MODULE_TSC, "/soc/aips-bus@02000000/tsc@02040000", 0x430, 22}, + {MODULE_ADC2, "/soc/aips-bus@02100000/adc@0219c000", 0x430, 23}, + {MODULE_SIM1, "/soc/aips-bus@02100000/sim@0218c000", 0x430, 24}, + {MODULE_SIM2, "/soc/aips-bus@02100000/sim@021b4000", 0x430, 25}, + {MODULE_FLEXCAN1, "/soc/aips-bus@02000000/can@02090000", 0x430, 26}, + {MODULE_FLEXCAN2, "/soc/aips-bus@02000000/can@02094000", 0x430, 27}, + {MODULE_SPDIF, "/soc/aips-bus@02000000/spba-bus@02000000/spdif@02004000", 0x440, 2}, + {MODULE_EIM, "/soc/aips-bus@02100000/weim@021b8000", 0x440, 3}, + {MODULE_SD1, "/soc/aips-bus@02100000/usdhc@02190000", 0x440, 4}, + {MODULE_SD2, "/soc/aips-bus@02100000/usdhc@02194000", 0x440, 5}, + {MODULE_QSPI1, "/soc/aips-bus@02100000/qspi@021e0000", 0x440, 6}, + {MODULE_GPMI, "/soc/gpmi-nand@01806000", 0x440, 7}, + {MODULE_APBHDMA, "/soc/dma-apbh@01804000", 0x440, 7}, + {MODULE_LCDIF, "/soc/aips-bus@02100000/lcdif@021c8000", 0x440, 8}, + {MODULE_PXP, "/soc/aips-bus@02100000/pxp@021cc000", 0x440, 9}, + {MODULE_CSI, "/soc/aips-bus@02100000/csi@021c4000", 0x440, 10}, + {MODULE_ADC1, "/soc/aips-bus@02100000/adc@02198000", 0x440, 11}, + {MODULE_ENET1, "/soc/aips-bus@02100000/ethernet@02188000", 0x440, 12}, + {MODULE_ENET2, "/soc/aips-bus@02000000/ethernet@020b4000", 0x440, 13}, + {MODULE_CAAM, "/soc/aips-bus@02100000/caam@2140000", 0x440, 14}, + {MODULE_USB_OTG2, "/soc/aips-bus@02100000/usb@02184200", 0x440, 15}, + {MODULE_SAI2, "/soc/aips-bus@02000000/spba-bus@02000000/sai@0202c000", 0x440, 24}, + {MODULE_SAI3, "/soc/aips-bus@02000000/spba-bus@02000000/sai@02030000", 0x440, 24}, + {MODULE_BEE, "/soc/aips-bus@02000000/bee@02044000", 0x440, 25}, + {MODULE_UART5, "/soc/aips-bus@02100000/serial@021f4000", 0x440, 26}, + {MODULE_UART6, "/soc/aips-bus@02100000/serial@021fc000", 0x440, 26}, + {MODULE_UART7, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02018000", 0x440, 26}, + {MODULE_UART8, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02024000", 0x440, 26}, + {MODULE_PWM5, "/soc/aips-bus@02000000/pwm@020f0000", 0x440, 27}, + {MODULE_PWM6, "/soc/aips-bus@02000000/pwm@020f4000", 0x440, 27}, + {MODULE_PWM7, "/soc/aips-bus@02000000/pwm@020f8000", 0x440, 27}, + {MODULE_PWM8, "/soc/aips-bus@02000000/pwm@020fc000", 0x440, 27}, + {MODULE_ECSPI3, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02010000", 0x440, 28}, + {MODULE_ECSPI4, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02014000", 0x440, 28}, + {MODULE_I2C3, "/soc/aips-bus@02100000/i2c@021a8000", 0x440, 29}, + {MODULE_I2C4, "/soc/aips-bus@02100000/i2c@021f8000", 0x440, 29}, + {MODULE_GPT2, "/soc/aips-bus@02000000/gpt@020e8000", 0x440, 30}, + {MODULE_EPIT2, "/soc/aips-bus@02000000/epit@020d4000", 0x440, 31}, +#endif +}; + +u32 check_module_fused(enum fuse_module_type module) +{ + u32 i, reg; + + for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) { + if (mx6_fuse_descs[i].module == module) { + reg = readl(OCOTP_BASE_ADDR + + mx6_fuse_descs[i].fuse_word_offset); + if (reg & BIT(mx6_fuse_descs[i].fuse_bit_offset)) + return 1; /* disabled */ + else + return 0; /* enabled */ + } + } + + return 0; /* Not has a fuse, always enabled */ +} + +#ifdef CONFIG_OF_SYSTEM_SETUP +int ft_system_setup(void *blob, bd_t *bd) +{ + const char *status = "disabled"; + u32 i, reg; + int rc, off; + + for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) { + reg = readl(OCOTP_BASE_ADDR + + mx6_fuse_descs[i].fuse_word_offset); + if (reg & BIT(mx6_fuse_descs[i].fuse_bit_offset)) { + off = fdt_path_offset(blob, + mx6_fuse_descs[i].node_path); + + if (off < 0) + continue; /* Not found, skip it */ +add_status: + rc = fdt_setprop(blob, nodeoff, "status", status, + strlen(status) + 1); + if (rc) { + if (rc == -FDT_ERR_NOSPACE) { + rc = fdt_increase_size(blob, 512); + if (!rc) + goto add_status; + } + printf("Unable to update property %s:%s, err=%s\n", mx6_fuse_descs[i].node_path, "status", fdt_strerror(rc)); + } else { + printf("Modify %s disabled\n", mx6_fuse_descs[i].node_path); + } + } + } + + return 0; +} +#endif + +u32 esdhc_fused(ulong base_addr) +{ + switch (base_addr) { + case USDHC1_BASE_ADDR: + return check_module_fused(MODULE_SD1); + case USDHC2_BASE_ADDR: + return check_module_fused(MODULE_SD2); +#ifdef USDHC3_BASE_ADDR + case USDHC3_BASE_ADDR: + return check_module_fused(MODULE_SD3); +#endif +#ifdef USDHC4_BASE_ADDR + case USDHC4_BASE_ADDR: + return check_module_fused(MODULE_SD4); +#endif + default: + return 0; + } +} + +u32 ecspi_fused(ulong base_addr) +{ + switch (base_addr) { + case ECSPI1_BASE_ADDR: + return check_module_fused(MODULE_ECSPI1); + case ECSPI2_BASE_ADDR: + return check_module_fused(MODULE_ECSPI2); + case ECSPI3_BASE_ADDR: + return check_module_fused(MODULE_ECSPI3); + case ECSPI4_BASE_ADDR: + return check_module_fused(MODULE_ECSPI4); +#ifdef ECSPI5_BASE_ADDR + case ECSPI5_BASE_ADDR: + return check_module_fused(MODULE_ECSPI5); +#endif + default: + return 0; + } +} + +u32 usb_fused(ulong base_addr) +{ + int i = (base_addr - USB_BASE_ADDR) / 0x200; + + return check_module_fused(MODULE_USB_OTG1 + i); +} + +u32 qspi_fused(ulong base_addr) +{ + switch (base_addr) { +#ifdef QSPI1_BASE_ADDR + case QSPI1_BASE_ADDR: + return check_module_fused(MODULE_QSPI1); +#endif + +#ifdef QSPI2_BASE_ADDR + case QSPI2_BASE_ADDR: + return check_module_fused(MODULE_QSPI2); +#endif + default: + return 0; + } +} + +u32 i2c_fused(ulong base_addr) +{ + switch (base_addr) { + case I2C1_BASE_ADDR: + return check_module_fused(MODULE_I2C1); + case I2C2_BASE_ADDR: + return check_module_fused(MODULE_I2C2); + case I2C3_BASE_ADDR: + return check_module_fused(MODULE_I2C3); +#ifdef I2C4_BASE_ADDR + case I2C4_BASE_ADDR: + return check_module_fused(MODULE_I2C4); +#endif + } + + return 0; +} + +u32 enet_fused(ulong base_addr) +{ + switch (base_addr) { + case ENET_BASE_ADDR: + return check_module_fused(MODULE_ENET1); +#ifdef ENET2_BASE_ADDR + case ENET2_BASE_ADDR: + return check_module_fused(MODULE_ENET2); +#endif + default: + return 0; + } +}
Add fuse check for I2C. If the fuse indicates the module will not work in the SoC, let's fail the initialization.
Signed-off-by: Peng Fan peng.fan@nxp.com ---
V2: Fix build for aarch64
drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 23119cce65..7a259547bd 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -18,6 +18,7 @@ #include <asm/arch/imx-regs.h> #include <linux/errno.h> #include <asm/mach-imx/mxc_i2c.h> +#include <asm/mach-imx/sys_proto.h> #include <asm/io.h> #include <i2c.h> #include <watchdog.h> @@ -740,6 +741,14 @@ void bus_i2c_init(int index, int speed, int unused, return; }
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) { + if (i2c_fused((ulong)mxc_i2c_buses[index].base)) { + printf("SoC fuse indicates I2C@0x%lx is unavailable.\n", + (ulong)mxc_i2c_buses[index].base); + return; + } + } + /* * Warning: Be careful to allow the assignment to a static * variable here. This function could be called while U-Boot is @@ -885,6 +894,14 @@ static int mxc_i2c_probe(struct udevice *bus) if (addr == FDT_ADDR_T_NONE) return -EINVAL;
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) { + if (i2c_fused((ulong)addr)) { + printf("SoC fuse indicates I2C@0x%lx is unavailable.\n", + (ulong)addr); + return -ENODEV; + } + } + i2c_bus->base = addr; i2c_bus->index = bus->seq; i2c_bus->bus = bus;
Hello Peng,
Am 01.08.2019 um 10:45 schrieb Peng Fan:
Add fuse check for I2C. If the fuse indicates the module will not work in the SoC, let's fail the initialization.
Signed-off-by: Peng Fan peng.fan@nxp.com
V2: Fix build for aarch64
drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 23119cce65..7a259547bd 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -18,6 +18,7 @@ #include <asm/arch/imx-regs.h> #include <linux/errno.h> #include <asm/mach-imx/mxc_i2c.h> +#include <asm/mach-imx/sys_proto.h> #include <asm/io.h> #include <i2c.h> #include <watchdog.h> @@ -740,6 +741,14 @@ void bus_i2c_init(int index, int speed, int unused, return; }
- if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
if (i2c_fused((ulong)mxc_i2c_buses[index].base)) {printf("SoC fuse indicates I2C@0x%lx is unavailable.\n",(ulong)mxc_i2c_buses[index].base);return;}- }
- /*
- Warning: Be careful to allow the assignment to a static
- variable here. This function could be called while U-Boot is
@@ -885,6 +894,14 @@ static int mxc_i2c_probe(struct udevice *bus) if (addr == FDT_ADDR_T_NONE) return -EINVAL;
- if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
if (i2c_fused((ulong)addr)) {printf("SoC fuse indicates I2C@0x%lx is unavailable.\n",(ulong)addr);return -ENODEV;}- }
- i2c_bus->base = addr; i2c_bus->index = bus->seq; i2c_bus->bus = bus;
Reviewed-by: Heiko Schocher hs@denx.de
bye, Heiko
Add fuse check for USB. If the fuse indicates the module will not work in the SoC, let's fail the initialization.
Signed-off-by: Peng Fan peng.fan@nxp.com ---
V2: Fix build for aarch64
drivers/usb/host/ehci-mx6.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index e9e6ed596d..4a298849c5 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -353,6 +353,14 @@ int ehci_hcd_init(int index, enum usb_init_type init, if (index > 3) return -EINVAL;
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) { + if (usb_fused((ulong)ehci)) { + printf("SoC fuse indicates USB@0x%lx is unavailable.\n", + (ulong)ehci); + return -ENODEV; + } + } + ret = ehci_mx6_common_init(ehci, index); if (ret) return ret; @@ -549,6 +557,14 @@ static int ehci_usb_probe(struct udevice *dev) struct ehci_hcor *hcor; int ret;
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) { + if (usb_fused((ulong)ehci)) { + printf("SoC fuse indicates USB@0x%lx is unavailable.\n", + (ulong)ehci); + return -ENODEV; + } + } + priv->ehci = ehci; priv->portnr = dev->seq; priv->init_type = type;
Add fuse check for fec. If the fuse indicates the module will not work in the SoC, let's fail the initialization.
Signed-off-by: Peng Fan peng.fan@nxp.com Acked-by: Joe Hershberger joe.hershberger@ni.com ---
V2: Fix build for aarch64 Add ACK tag
drivers/net/fec_mxc.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 96e3ad9a1a..afc82dd08a 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -1185,6 +1185,13 @@ int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr) #endif int ret;
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) { + if (enet_fused((ulong)addr)) { + printf("SoC fuse indicates Ethernet@0x%x is unavailable.\n", addr); + return -ENODEV; + } + } + #ifdef CONFIG_FEC_MXC_MDIO_BASE /* * The i.MX28 has two ethernet interfaces, but they are not equal. @@ -1323,6 +1330,13 @@ static int fecmxc_probe(struct udevice *dev) uint32_t start; int ret;
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) { + if (enet_fused((ulong)priv->eth)) { + printf("SoC fuse indicates Ethernet@0x%lx is unavailable.\n", (ulong)priv->eth); + return -ENODEV; + } + } + if (IS_ENABLED(CONFIG_IMX8)) { ret = clk_get_by_name(dev, "ipg", &priv->ipg_clk); if (ret < 0) {
Hi Peng,
Add fuse check for fec. If the fuse indicates the module will not work in the SoC, let's fail the initialization.
Signed-off-by: Peng Fan peng.fan@nxp.com Acked-by: Joe Hershberger joe.hershberger@ni.com
V2: Fix build for aarch64 Add ACK tag
drivers/net/fec_mxc.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 96e3ad9a1a..afc82dd08a 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -1185,6 +1185,13 @@ int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr) #endif int ret;
- if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
if (enet_fused((ulong)addr)) {printf("SoC fuse indicates Ethernet@0x%x is unavailable.\n", addr);return -ENODEV;}- }
#ifdef CONFIG_FEC_MXC_MDIO_BASE /* * The i.MX28 has two ethernet interfaces, but they are not equal. @@ -1323,6 +1330,13 @@ static int fecmxc_probe(struct udevice *dev) uint32_t start; int ret;
- if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
if (enet_fused((ulong)priv->eth)) {printf("SoC fuse indicates Ethernet@0x%lx is unavailable.\n", (ulong)priv->eth);return -ENODEV;}- }
- if (IS_ENABLED(CONFIG_IMX8)) { ret = clk_get_by_name(dev, "ipg", &priv->ipg_clk); if (ret < 0) {
Reviewed-by: Ye Li ye.li@nxp.com
Best regards, Ye Li
participants (3)
-
Heiko Schocher -
Peng Fan -
Ye Li