[U-Boot] [PATCH 1/4] imx: add module fuse support
Schrempf Frieder
frieder.schrempf at kontron.de
Wed Jul 24 18:12:07 UTC 2019
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.fan at 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 at 2000000/tsc at 2040000", 0x430,
>>>>> 22},
>>>>> + {MODULE_ADC2, "/soc/aips-bus at 2100000/adc at 219c000", 0x430,
>>>>> 23},
>>>>> + {MODULE_EPDC, "/soc/aips-bus at 2200000/epdc at 228c000",
>>>>> 0x430, 24},
>>>>> + {MODULE_ESAI,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/esai at 2024000", 0x430,
>> 25},
>>>>> + {MODULE_FLEXCAN1, "/soc/aips-bus at 2000000/can at 2090000",
>>>>> 0x430, 26},
>>>>> + {MODULE_FLEXCAN2, "/soc/aips-bus at 2000000/can at 2094000",
>>>>> 0x430, 27},
>>>>> + {MODULE_SPDIF,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/spdif at 2004000", 0x440,
>> 2},
>>>>> + {MODULE_EIM, "/soc/aips-bus at 2100000/weim at 21b8000",
>>>>> 0x440, 3},
>>>>> + {MODULE_SD1, "/soc/aips-bus at 2100000/usdhc at 2190000",
>>>>> 0x440, 4},
>>>>> + {MODULE_SD2, "/soc/aips-bus at 2100000/usdhc at 2194000",
>>>>> 0x440, 5},
>>>>> + {MODULE_QSPI1, "/soc/aips-bus at 2100000/qspi at 21e0000",
>>>>> 0x440, 6},
>>>>> + {MODULE_GPMI, "/soc/gpmi-nand at 1806000", 0x440, 7},
>>>>> + {MODULE_APBHDMA, "/soc/dma-apbh at 1804000", 0x440, 7},
>>>>> + {MODULE_LCDIF, "/soc/aips-bus at 2100000/lcdif at 21c8000",
>>>>> 0x440, 8},
>>>>> + {MODULE_PXP, "/soc/aips-bus at 2100000/pxp at 21cc000", 0x440,
>>>>> 9},
>>>>> + {MODULE_CSI, "/soc/aips-bus at 2100000/csi at 21c4000", 0x440,
>>>>> 10},
>>>>> + {MODULE_ADC1, "/soc/aips-bus at 2100000/adc at 2198000", 0x440,
>>>>> 11},
>>>>> + {MODULE_ENET1, "/soc/aips-bus at 2100000/ethernet at 2188000",
>>>>> 0x440, 12},
>>>>> + {MODULE_ENET2, "/soc/aips-bus at 2000000/ethernet at 20b4000",
>>>>> 0x440, 13},
>>>>> + {MODULE_DCP, "/soc/aips-bus at 2200000/dcp at 2280000", 0x440,
>>>>> 14},
>>>>> + {MODULE_USB_OTG2, "/soc/aips-bus at 2100000/usb at 2184200",
>>>>> 0x440, 15},
>>>>> + {MODULE_SAI2,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/sai at 202c000", 0x440,
>> 24},
>>>>> + {MODULE_SAI3,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/sai at 2030000", 0x440,
>> 24},
>>>>> + {MODULE_DCP_CRYPTO,
>> "/soc/aips-bus at 2200000/dcp at 2280000",
>>>>> 0x440, 25},
>>>>> + {MODULE_UART5, "/soc/aips-bus at 2100000/serial at 21f4000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART6, "/soc/aips-bus at 2100000/serial at 21fc000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART7,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/serial at 2018000",
>> 0x440,
>>>> 26},
>>>>> + {MODULE_UART8, "/soc/aips-bus at 2200000/serial at 2288000",
>>>>> 0x440, 26},
>>>>> + {MODULE_PWM5, "/soc/aips-bus at 2000000/pwm at 20f0000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_PWM6, "/soc/aips-bus at 2000000/pwm at 20f4000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_PWM7, "/soc/aips-bus at 2000000/pwm at 20f8000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_PWM8, "/soc/aips-bus at 2000000/pwm at 20fc000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_ECSPI3,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/ecspi at 2010000", 0x440,
>>>> 28},
>>>>> + {MODULE_ECSPI4,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/ecspi at 2014000", 0x440,
>>>> 28},
>>>>> + {MODULE_I2C3, "/soc/aips-bus at 2100000/i2c at 21a8000", 0x440,
>>>>> 29},
>>>>> + {MODULE_I2C4, "/soc/aips-bus at 2100000/i2c at 21f8000", 0x440,
>>>>> 29},
>>>>> + {MODULE_GPT2, "/soc/aips-bus at 2000000/gpt at 20e8000", 0x440,
>>>>> 30},
>>>>> + {MODULE_EPIT2, "/soc/aips-bus at 2000000/epit at 20d4000",
>>>>> 0x440, 31},
>>>>> + /* Paths for older imx tree: */
>>>>> + {MODULE_TSC, "/soc/aips-bus at 02000000/tsc at 02040000",
>>>>> 0x430, 22},
>>>>> + {MODULE_ADC2, "/soc/aips-bus at 02100000/adc at 0219c000",
>>>>> 0x430, 23},
>>>>> + {MODULE_EPDC, "/soc/aips-bus at 02200000/epdc at 0228c000",
>>>>> 0x430, 24},
>>>>> + {MODULE_ESAI,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/esai at 02024000",
>> 0x430,
>>>> 25},
>>>>> + {MODULE_FLEXCAN1, "/soc/aips-bus at 02000000/can at 02090000",
>>>>> 0x430, 26},
>>>>> + {MODULE_FLEXCAN2, "/soc/aips-bus at 02000000/can at 02094000",
>>>>> 0x430, 27},
>>>>> + {MODULE_SPDIF,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/spdif at 02004000",
>>>>> 0x440,
>>>> 2},
>>>>> + {MODULE_EIM, "/soc/aips-bus at 02100000/weim at 021b8000",
>>>>> 0x440, 3},
>>>>> + {MODULE_SD1, "/soc/aips-bus at 02100000/usdhc at 02190000",
>>>>> 0x440, 4},
>>>>> + {MODULE_SD2, "/soc/aips-bus at 02100000/usdhc at 02194000",
>>>>> 0x440, 5},
>>>>> + {MODULE_QSPI1, "/soc/aips-bus at 02100000/qspi at 021e0000",
>>>>> 0x440, 6},
>>>>> + {MODULE_GPMI, "/soc/gpmi-nand at 01806000", 0x440, 7},
>>>>> + {MODULE_APBHDMA, "/soc/dma-apbh at 01804000", 0x440, 7},
>>>>> + {MODULE_LCDIF, "/soc/aips-bus at 02100000/lcdif at 021c8000",
>>>>> 0x440, 8},
>>>>> + {MODULE_PXP, "/soc/aips-bus at 02100000/pxp at 021cc000",
>>>>> 0x440, 9},
>>>>> + {MODULE_CSI, "/soc/aips-bus at 02100000/csi at 021c4000",
>>>>> 0x440, 10},
>>>>> + {MODULE_ADC1, "/soc/aips-bus at 02100000/adc at 02198000",
>>>>> 0x440, 11},
>>>>> + {MODULE_ENET1,
>>>>> "/soc/aips-bus at 02100000/ethernet at 02188000", 0x440, 12},
>>>>> + {MODULE_ENET2,
>>>>> "/soc/aips-bus at 02000000/ethernet at 020b4000", 0x440, 13},
>>>>> + {MODULE_DCP, "/soc/aips-bus at 02200000/dcp at 02280000",
>>>>> 0x440, 14},
>>>>> + {MODULE_USB_OTG2,
>> "/soc/aips-bus at 02100000/usb at 02184200",
>>>>> 0x440, 15},
>>>>> + {MODULE_SAI2,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/sai at 0202c000",
>> 0x440,
>>>> 24},
>>>>> + {MODULE_SAI3,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/sai at 02030000",
>> 0x440,
>>>> 24},
>>>>> + {MODULE_DCP_CRYPTO,
>>>>> "/soc/aips-bus at 02200000/dcp at 02280000", 0x440, 25},
>>>>> + {MODULE_UART5, "/soc/aips-bus at 02100000/serial at 021f4000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART6, "/soc/aips-bus at 02100000/serial at 021fc000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART7,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/serial at 02018000",
>>>> 0x440,
>>>>> 26},
>>>>> + {MODULE_UART8, "/soc/aips-bus at 02200000/serial at 02288000",
>>>>> 0x440, 26},
>>>>> + {MODULE_PWM5, "/soc/aips-bus at 02000000/pwm at 020f0000",
>>>>> 0x440, 27},
>>>>> + {MODULE_PWM6, "/soc/aips-bus at 02000000/pwm at 020f4000",
>>>>> 0x440, 27},
>>>>> + {MODULE_PWM7, "/soc/aips-bus at 02000000/pwm at 020f8000",
>>>>> 0x440, 27},
>>>>> + {MODULE_PWM8, "/soc/aips-bus at 02000000/pwm at 020fc000",
>>>>> 0x440, 27},
>>>>> + {MODULE_ECSPI3,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/ecspi at 02010000",
>>>>> 0x440,
>>>> 28},
>>>>> + {MODULE_ECSPI4,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/ecspi at 02014000",
>>>>> 0x440,
>>>> 28},
>>>>> + {MODULE_I2C3, "/soc/aips-bus at 02100000/i2c at 021a8000",
>>>>> 0x440, 29},
>>>>> + {MODULE_I2C4, "/soc/aips-bus at 02100000/i2c at 021f8000",
>>>>> 0x440, 29},
>>>>> + {MODULE_GPT2, "/soc/aips-bus at 02000000/gpt at 020e8000",
>>>>> 0x440, 30},
>>>>> + {MODULE_EPIT2, "/soc/aips-bus at 02000000/epit at 020d4000",
>>>>> 0x440, 31}, +#elif defined(CONFIG_MX6UL)
>>>>> + {MODULE_TSC, "/soc/aips-bus at 2000000/tsc at 2040000", 0x430,
>>>>> 22},
>>>>> + {MODULE_ADC2, "/soc/aips-bus at 2100000/adc at 219c000", 0x430,
>>>>> 23},
>>>>> + {MODULE_SIM1, "/soc/aips-bus at 2100000/sim at 218c000", 0x430,
>>>>> 24},
>>>>> + {MODULE_SIM2, "/soc/aips-bus at 2100000/sim at 21b4000", 0x430,
>>>>> 25},
>>>>> + {MODULE_FLEXCAN1, "/soc/aips-bus at 2000000/can at 2090000",
>>>>> 0x430, 26},
>>>>> + {MODULE_FLEXCAN2, "/soc/aips-bus at 2000000/can at 2094000",
>>>>> 0x430, 27},
>>>>> + {MODULE_SPDIF,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/spdif at 2004000", 0x440,
>> 2},
>>>>> + {MODULE_EIM, "/soc/aips-bus at 2100000/weim at 21b8000",
>>>>> 0x440, 3},
>>>>> + {MODULE_SD1, "/soc/aips-bus at 2100000/usdhc at 2190000",
>>>>> 0x440, 4},
>>>>> + {MODULE_SD2, "/soc/aips-bus at 2100000/usdhc at 2194000",
>>>>> 0x440, 5},
>>>>> + {MODULE_QSPI1, "/soc/aips-bus at 2100000/qspi at 21e0000",
>>>>> 0x440, 6},
>>>>> + {MODULE_GPMI, "/soc/gpmi-nand at 1806000", 0x440, 7},
>>>>> + {MODULE_APBHDMA, "/soc/dma-apbh at 1804000", 0x440, 7},
>>>>> + {MODULE_LCDIF, "/soc/aips-bus at 2100000/lcdif at 21c8000",
>>>>> 0x440, 8},
>>>>> + {MODULE_PXP, "/soc/aips-bus at 2100000/pxp at 21cc000", 0x440,
>>>>> 9},
>>>>> + {MODULE_CSI, "/soc/aips-bus at 2100000/csi at 21c4000", 0x440,
>>>>> 10},
>>>>> + {MODULE_ADC1, "/soc/aips-bus at 2100000/adc at 2198000", 0x440,
>>>>> 11},
>>>>> + {MODULE_ENET1, "/soc/aips-bus at 2100000/ethernet at 2188000",
>>>>> 0x440, 12},
>>>>> + {MODULE_ENET2, "/soc/aips-bus at 2000000/ethernet at 20b4000",
>>>>> 0x440, 13},
>>>>> + {MODULE_CAAM, "/soc/aips-bus at 2100000/caam at 2140000",
>>>>> 0x440, 14},
>>>>> + {MODULE_USB_OTG2, "/soc/aips-bus at 2100000/usb at 2184200",
>>>>> 0x440, 15},
>>>>> + {MODULE_SAI2,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/sai at 202c000", 0x440,
>> 24},
>>>>> + {MODULE_SAI3,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/sai at 2030000", 0x440,
>> 24},
>>>>> + {MODULE_BEE, "/soc/aips-bus at 2000000/bee at 2044000", 0x440,
>>>>> 25},
>>>>> + {MODULE_UART5, "/soc/aips-bus at 2100000/serial at 21f4000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART6, "/soc/aips-bus at 2100000/serial at 21fc000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART7,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/serial at 2018000",
>> 0x440,
>>>> 26},
>>>>> + {MODULE_UART8,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/serial at 2024000",
>> 0x440,
>>>> 26},
>>>>> + {MODULE_PWM5, "/soc/aips-bus at 2000000/pwm at 20f0000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_PWM6, "/soc/aips-bus at 2000000/pwm at 20f4000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_PWM7, "/soc/aips-bus at 2000000/pwm at 20f8000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_PWM8, "/soc/aips-bus at 2000000/pwm at 20fc000",
>> 0x440,
>>>>> 27},
>>>>> + {MODULE_ECSPI3,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/ecspi at 2010000", 0x440,
>>>> 28},
>>>>> + {MODULE_ECSPI4,
>>>>> "/soc/aips-bus at 2000000/spba-bus at 2000000/ecspi at 2014000", 0x440,
>>>> 28},
>>>>> + {MODULE_I2C3, "/soc/aips-bus at 2100000/i2c at 21a8000", 0x440,
>>>>> 29},
>>>>> + {MODULE_I2C4, "/soc/aips-bus at 2100000/i2c at 21f8000", 0x440,
>>>>> 29},
>>>>> + {MODULE_GPT2, "/soc/aips-bus at 2000000/gpt at 20e8000", 0x440,
>>>>> 30},
>>>>> + {MODULE_EPIT2, "/soc/aips-bus at 2000000/epit at 20d4000",
>>>>> 0x440, 31},
>>>>> + /* Paths for older imx tree: */
>>>>> + {MODULE_TSC, "/soc/aips-bus at 02000000/tsc at 02040000",
>>>>> 0x430, 22},
>>>>> + {MODULE_ADC2, "/soc/aips-bus at 02100000/adc at 0219c000",
>>>>> 0x430, 23},
>>>>> + {MODULE_SIM1, "/soc/aips-bus at 02100000/sim at 0218c000",
>>>>> 0x430, 24},
>>>>> + {MODULE_SIM2, "/soc/aips-bus at 02100000/sim at 021b4000",
>>>>> 0x430, 25},
>>>>> + {MODULE_FLEXCAN1, "/soc/aips-bus at 02000000/can at 02090000",
>>>>> 0x430, 26},
>>>>> + {MODULE_FLEXCAN2, "/soc/aips-bus at 02000000/can at 02094000",
>>>>> 0x430, 27},
>>>>> + {MODULE_SPDIF,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/spdif at 02004000",
>>>>> 0x440,
>>>> 2},
>>>>> + {MODULE_EIM, "/soc/aips-bus at 02100000/weim at 021b8000",
>>>>> 0x440, 3},
>>>>> + {MODULE_SD1, "/soc/aips-bus at 02100000/usdhc at 02190000",
>>>>> 0x440, 4},
>>>>> + {MODULE_SD2, "/soc/aips-bus at 02100000/usdhc at 02194000",
>>>>> 0x440, 5},
>>>>> + {MODULE_QSPI1, "/soc/aips-bus at 02100000/qspi at 021e0000",
>>>>> 0x440, 6},
>>>>> + {MODULE_GPMI, "/soc/gpmi-nand at 01806000", 0x440, 7},
>>>>> + {MODULE_APBHDMA, "/soc/dma-apbh at 01804000", 0x440, 7},
>>>>> + {MODULE_LCDIF, "/soc/aips-bus at 02100000/lcdif at 021c8000",
>>>>> 0x440, 8},
>>>>> + {MODULE_PXP, "/soc/aips-bus at 02100000/pxp at 021cc000",
>>>>> 0x440, 9},
>>>>> + {MODULE_CSI, "/soc/aips-bus at 02100000/csi at 021c4000",
>>>>> 0x440, 10},
>>>>> + {MODULE_ADC1, "/soc/aips-bus at 02100000/adc at 02198000",
>>>>> 0x440, 11},
>>>>> + {MODULE_ENET1,
>>>>> "/soc/aips-bus at 02100000/ethernet at 02188000", 0x440, 12},
>>>>> + {MODULE_ENET2,
>>>>> "/soc/aips-bus at 02000000/ethernet at 020b4000", 0x440, 13},
>>>>> + {MODULE_CAAM, "/soc/aips-bus at 02100000/caam at 2140000",
>>>>> 0x440, 14},
>>>>> + {MODULE_USB_OTG2,
>> "/soc/aips-bus at 02100000/usb at 02184200",
>>>>> 0x440, 15},
>>>>> + {MODULE_SAI2,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/sai at 0202c000",
>> 0x440,
>>>> 24},
>>>>> + {MODULE_SAI3,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/sai at 02030000",
>> 0x440,
>>>> 24},
>>>>> + {MODULE_BEE, "/soc/aips-bus at 02000000/bee at 02044000",
>>>>> 0x440, 25},
>>>>> + {MODULE_UART5, "/soc/aips-bus at 02100000/serial at 021f4000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART6, "/soc/aips-bus at 02100000/serial at 021fc000",
>>>>> 0x440, 26},
>>>>> + {MODULE_UART7,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/serial at 02018000",
>>>> 0x440,
>>>>> 26},
>>>>> + {MODULE_UART8,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/serial at 02024000",
>>>> 0x440,
>>>>> 26},
>>>>> + {MODULE_PWM5, "/soc/aips-bus at 02000000/pwm at 020f0000",
>>>>> 0x440, 27},
>>>>> + {MODULE_PWM6, "/soc/aips-bus at 02000000/pwm at 020f4000",
>>>>> 0x440, 27},
>>>>> + {MODULE_PWM7, "/soc/aips-bus at 02000000/pwm at 020f8000",
>>>>> 0x440, 27},
>>>>> + {MODULE_PWM8, "/soc/aips-bus at 02000000/pwm at 020fc000",
>>>>> 0x440, 27},
>>>>> + {MODULE_ECSPI3,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/ecspi at 02010000",
>>>>> 0x440,
>>>> 28},
>>>>> + {MODULE_ECSPI4,
>>>>> "/soc/aips-bus at 02000000/spba-bus at 02000000/ecspi at 02014000",
>>>>> 0x440,
>>>> 28},
>>>>> + {MODULE_I2C3, "/soc/aips-bus at 02100000/i2c at 021a8000",
>>>>> 0x440, 29},
>>>>> + {MODULE_I2C4, "/soc/aips-bus at 02100000/i2c at 021f8000",
>>>>> 0x440, 29},
>>>>> + {MODULE_GPT2, "/soc/aips-bus at 02000000/gpt at 020e8000",
>>>>> 0x440, 30},
>>>>> + {MODULE_EPIT2, "/soc/aips-bus at 02000000/epit at 020d4000",
>>>>
>>>> I'm wondering if there would be a way to avoid the hardcoded DTS
>>>> patch ("/soc/aips-bus at 02000000/epit at 020d4000") ?
>>>>
>>>> Maybe, after reading the the OCOTP values this could be found
>>>> dynamically (by using the e.g. i2c at 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:
>>>> lukma at 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:
>> lukma at denx.de
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