diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/misc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/misc/k3_fuse.c | 78 | ||||
| -rw-r--r-- | drivers/misc/qfw_acpi.c | 32 |
4 files changed, 113 insertions, 5 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index da84b35e804..834e0285097 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -468,6 +468,13 @@ config STM32MP_FUSE for STM32MP architecture. This API is needed for CMD_FUSE. +config K3_FUSE + bool "Enable TI K3 fuse wrapper providing the fuse API" + depends on MISC && CMD_FUSE && CMD_FUSE_WRITEBUFF + help + If you say Y here, you will get support for the fuse API (OTP) + for TI K3 architecture. + config STM32_RCC bool "Enable RCC driver for the STM32 SoC's family" depends on (ARCH_STM32 || ARCH_STM32MP) && MISC diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index dac805e4cdd..0b81ba2604f 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_$(XPL_)I2C_EEPROM) += i2c_eeprom.o obj-$(CONFIG_IHS_FPGA) += ihs_fpga.o obj-$(CONFIG_IMX8) += imx8/ obj-$(CONFIG_IMX_ELE) += imx_ele/ +obj-$(CONFIG_K3_FUSE) += k3_fuse.o obj-$(CONFIG_LED_STATUS) += status_led.o obj-$(CONFIG_LED_STATUS_GPIO) += gpio_led.o obj-$(CONFIG_MPC83XX_SERDES) += mpc83xx_serdes.o diff --git a/drivers/misc/k3_fuse.c b/drivers/misc/k3_fuse.c new file mode 100644 index 00000000000..4a8ff1f2523 --- /dev/null +++ b/drivers/misc/k3_fuse.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2025 Texas Instruments Incorporated, <www.ti.com> + */ + +#include <errno.h> +#include <stdio.h> +#include <fuse.h> +#include <linux/arm-smccc.h> +#include <string.h> + +#define K3_SIP_OTP_WRITEBUFF 0xC2000000 +#define K3_SIP_OTP_WRITE 0xC2000001 +#define K3_SIP_OTP_READ 0xC2000002 + +int fuse_read(u32 bank, u32 word, u32 *val) +{ + struct arm_smccc_res res; + + if (bank != 0U) { + printf("Invalid bank argument, ONLY bank 0 is supported\n"); + return -EINVAL; + } + + /* Make SiP SMC call and send the word in the parameter register */ + arm_smccc_smc(K3_SIP_OTP_READ, word, + 0, 0, 0, 0, 0, 0, &res); + + *val = res.a1; + if (res.a0 != 0) + printf("SMC call failed: Error code %lu\n", res.a0); + + return res.a0; +} + +int fuse_sense(u32 bank, u32 word, u32 *val) +{ + return -EPERM; +} + +int fuse_prog(u32 bank, u32 word, u32 val) +{ + struct arm_smccc_res res; + u32 mask = val; + + if (bank != 0U) { + printf("Invalid bank argument, ONLY bank 0 is supported\n"); + return -EINVAL; + } + + /* Make SiP SMC call and send the word, val and mask in the parameter register */ + arm_smccc_smc(K3_SIP_OTP_WRITE, word, + val, mask, 0, 0, 0, 0, &res); + + if (res.a0 != 0) + printf("SMC call failed: Error code %lu\n", res.a0); + + return res.a0; +} + +int fuse_override(u32 bank, u32 word, u32 val) +{ + return -EPERM; +} + +int fuse_writebuff(ulong addr) +{ + struct arm_smccc_res res; + + /* Make SiP SMC call and send the addr in the parameter register */ + arm_smccc_smc(K3_SIP_OTP_WRITEBUFF, (unsigned long)addr, + 0, 0, 0, 0, 0, 0, &res); + + if (res.a0 != 0) + printf("SMC call failed: Error code %lu\n", res.a0); + + return res.a0; +} diff --git a/drivers/misc/qfw_acpi.c b/drivers/misc/qfw_acpi.c index 77cebae5e3f..c6c052ac6c3 100644 --- a/drivers/misc/qfw_acpi.c +++ b/drivers/misc/qfw_acpi.c @@ -25,17 +25,18 @@ DECLARE_GLOBAL_DATA_PTR; * * @entry : BIOS linker command entry which tells where to allocate memory * (either high memory or low memory) - * @addr : The address that should be used for low memory allcation. If the + * @addr : The address that should be used for low memory allocation. If the * memory allocation request is 'ZONE_HIGH' then this parameter will * be ignored. * @return: 0 on success, or negative value on failure */ -static int bios_linker_allocate(struct udevice *dev, +static int bios_linker_allocate(struct acpi_ctx *ctx, struct udevice *dev, struct bios_linker_entry *entry, ulong *addr) { uint32_t size, align; struct fw_file *file; unsigned long aligned_addr; + struct acpi_rsdp *rsdp; align = le32_to_cpu(entry->alloc.align); /* align must be power of 2 */ @@ -58,7 +59,9 @@ static int bios_linker_allocate(struct udevice *dev, * If allocation zone is ZONE_FSEG, then we use the 'addr' passed * in which is low memory */ - if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH) { + if (IS_ENABLED(CONFIG_BLOBLIST_TABLES)) { + aligned_addr = ALIGN(*addr, align); + } else if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH) { aligned_addr = (unsigned long)memalign(align, size); if (!aligned_addr) { printf("error: allocating resource\n"); @@ -83,8 +86,13 @@ static int bios_linker_allocate(struct udevice *dev, (void *)aligned_addr); file->addr = aligned_addr; + rsdp = (void *)aligned_addr; + if (!strncmp(rsdp->signature, RSDP_SIG, sizeof(rsdp->signature))) + ctx->rsdp = rsdp; + /* adjust address for low memory allocation */ - if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) + if (IS_ENABLED(CONFIG_BLOBLIST_TABLES) || + entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) *addr = (aligned_addr + size); return 0; @@ -209,19 +217,23 @@ ulong write_acpi_tables(ulong addr) qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, table_loader); for (i = 0; i < (size / sizeof(*entry)); i++) { + log_content("entry %d: addr %lx\n", i, addr); entry = table_loader + i; switch (le32_to_cpu(entry->command)) { case BIOS_LINKER_LOADER_COMMAND_ALLOCATE: - ret = bios_linker_allocate(dev, entry, &addr); + log_content(" - %s\n", entry->alloc.file); + ret = bios_linker_allocate(ctx, dev, entry, &addr); if (ret) goto out; break; case BIOS_LINKER_LOADER_COMMAND_ADD_POINTER: + log_content(" - %s\n", entry->pointer.src_file); ret = bios_linker_add_pointer(dev, entry); if (ret) goto out; break; case BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM: + log_content(" - %s\n", entry->cksum.file); ret = bios_linker_add_checksum(dev, entry); if (ret) goto out; @@ -246,6 +258,16 @@ out: free(table_loader); + if (!ctx->rsdp) { + printf("error: no RSDP found\n"); + return addr; + } + struct acpi_rsdp *rsdp = ctx->rsdp; + + rsdp->length = sizeof(*rsdp); + rsdp->xsdt_address = 0; + rsdp->ext_checksum = table_compute_checksum((u8 *)rsdp, sizeof(*rsdp)); + gd_set_acpi_start(acpi_get_rsdp_addr()); return addr; |