Hi Lukasz, On 24.07.19 14:12, Peng Fan wrote: > Hi Lukasz, > >> Subject: Re: [U-Boot] [PATCH 1/4] imx: add module fuse support >> >> Hi Peng, >> >>> Hi Lukasz, >>> >>>> Subject: Re: [U-Boot] [PATCH 1/4] imx: add module fuse support >>>> >>>> Hi Peng, >>>> >>>>> 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. >>>> >>>> If I understand correctly the concept is interesting to make the >>>> final binary smaller. >>> >>> No. This is to use one image to support multiple parts of a same kind >>> SoC. So this patch will make the uboot image size larger. >>> >>> As described in commit log, some i.MX6UL parts not have enet, some >>> have Enet, >> >> Is there any markings on the SoC? (like MX6ULXXXXXX) which indicates which >> SoC has enet and which doesn't have one?
Yes, you can look in the datasheets. For i.MX6ULL ([1], [2]) for example, there is a table in chapter 1.1, which describes the features for the different types and the corresponding part numbers. And the part numbers are printed on the chips. Regards, Frieder [1] https://www.nxp.com/docs/en/data-sheet/IMX6ULLCEC.pdf [2] https://www.nxp.com/docs/en/data-sheet/IMX6ULLIEC.pdf > > I do not have that marketing information. We just have the information > that to use fuse to indicate whether the module is there. > > Regards, > Peng. > >> >>> so we need find a method to make the same image could work on the two >>> parts, that is what this patch does. >> >> Ok. Thanks for explanation. >> >>> >>> Thanks, >>> Peng. >>> >>>> >>>>> >>>>> Signed-off-by: Peng Fan <peng....@nxp.com> >>>>> --- >>>>> 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..6b93f0402e >>>>> --- /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(u32 base_addr) { >>>>> + return 0; >>>>> +}; >>>>> + >>>>> +static inline u32 ecspi_fused(u32 base_addr) { >>>>> + return 0; >>>>> +}; >>>>> + >>>>> +static inline u32 uart_fused(u32 base_addr) { >>>>> + return 0; >>>>> +}; >>>>> + >>>>> +static inline u32 usb_fused(u32 base_addr) { >>>>> + return 0; >>>>> +}; >>>>> + >>>>> +static inline u32 qspi_fused(u32 base_addr) { >>>>> + return 0; >>>>> +}; >>>>> + >>>>> +static inline u32 i2c_fused(u32 base_addr) { >>>>> + return 0; >>>>> +}; >>>>> + >>>>> +static inline u32 enet_fused(u32 base_addr) { >>>>> + return 0; >>>>> +}; >>>>> +#else >>>>> +u32 check_module_fused(enum fuse_module_type module); >>>>> +u32 esdhc_fused(u32 base_addr); >>>>> +u32 ecspi_fused(u32 base_addr); >>>>> +u32 uart_fused(u32 base_addr); >>>>> +u32 usb_fused(u32 base_addr); >>>>> +u32 qspi_fused(u32 base_addr); >>>>> +u32 i2c_fused(u32 base_addr); >>>>> +u32 enet_fused(u32 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 >>>>> 79cb4e6dc9..14b016ee99 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 d3942f6b3f..b8625962a6 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..417264b15c >>>>> --- /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", >>>> >>>> I'm wondering if there would be a way to avoid the hardcoded DTS >>>> patch ("/soc/aips-bus@02000000/epit@020d4000") ? >>>> >>>> Maybe, after reading the the OCOTP values this could be found >>>> dynamically (by using the e.g. i2c@021f8000 string) on the DTS >>>> already stored in RAM (which is thereafter passed to Linux kernel at >>>> bootm execution) ? >>>> >>>>> 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(u32 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(u32 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(u32 base_addr) >>>>> +{ >>>>> + int i = (base_addr - USB_BASE_ADDR) / 0x200; >>>>> + >>>>> + return check_module_fused(MODULE_USB_OTG1 + i); } >>>>> + >>>>> +u32 qspi_fused(u32 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(u32 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(u32 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; >>>>> + } >>>>> +} >>>> >>>> >>>> >>>> >>>> Best regards, >>>> >>>> Lukasz Majewski >>>> >>>> -- >>>> >>>> DENX Software Engineering GmbH, Managing Director: Wolfgang >>>> Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, >>>> Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: >>>> lu...@denx.de >> >> >> >> >> Best regards, >> >> Lukasz Majewski >> >> -- >> >> DENX Software Engineering GmbH, Managing Director: Wolfgang Denk >> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany >> Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: >> lu...@denx.de > 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