diff options
Diffstat (limited to 'arch/arm/mach-imx/mx6/module_fuse.c')
| -rw-r--r-- | arch/arm/mach-imx/mx6/module_fuse.c | 322 |
1 files changed, 322 insertions, 0 deletions
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; + } +} |