[U-Boot] [PATCH 1/4] imx: add module fuse support
Lukasz Majewski
lukma at denx.de
Wed Jul 24 10:05:13 UTC 2019
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?
> 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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