mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-29 08:01:08 +00:00
arm: K3: Introduce System Firmware loader framework
Introduce a framework that allows loading the System Firmware (SYSFW) binary as well as the associated configuration data from an image tree blob named "sysfw.itb" from an FS-based MMC boot media or from an MMC RAW mode partition or sector. To simplify the handling of and loading from the different boot media we tap into the existing U-Boot SPL framework usually used for loading U-Boot by building on an earlier commit that exposes some of that functionality. Note that this initial implementation only supports FS and RAW-based eMMC/SD card boot. Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Andreas Dannenberg
Tom Rini
parent
e1eb6ada4e
commit
6df8706dc2
4 changed files with 314 additions and 0 deletions
|
|
@ -58,6 +58,45 @@ config SYS_K3_BOOT_CORE_ID
|
|||
int
|
||||
default 16
|
||||
|
||||
config K3_LOAD_SYSFW
|
||||
bool
|
||||
depends on SPL
|
||||
|
||||
config K3_SYSFW_IMAGE_NAME
|
||||
string "File name of SYSFW firmware and configuration blob"
|
||||
depends on K3_LOAD_SYSFW
|
||||
default "sysfw.itb"
|
||||
help
|
||||
Filename of the combined System Firmware and configuration image tree
|
||||
blob to be loaded when booting from a filesystem.
|
||||
|
||||
config K3_SYSFW_IMAGE_MMCSD_RAW_MODE_SECT
|
||||
hex "MMC sector to load SYSFW firmware and configuration blob from"
|
||||
depends on K3_LOAD_SYSFW && SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
|
||||
default 0x3600
|
||||
help
|
||||
Address on the MMC to load the combined System Firmware and
|
||||
configuration image tree blob from, when the MMC is being used
|
||||
in raw mode. Units: MMC sectors (1 sector = 512 bytes).
|
||||
|
||||
config K3_SYSFW_IMAGE_MMCSD_RAW_MODE_PART
|
||||
hex "MMC partition to load SYSFW firmware and configuration blob from"
|
||||
depends on K3_LOAD_SYSFW && SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
|
||||
default 2
|
||||
help
|
||||
Partition on the MMC to the combined System Firmware and configuration
|
||||
image tree blob from, when the MMC is being used in raw mode.
|
||||
|
||||
config K3_SYSFW_IMAGE_SIZE_MAX
|
||||
int "Amount of memory dynamically allocated for loading SYSFW blob"
|
||||
depends on K3_LOAD_SYSFW
|
||||
default 269000
|
||||
help
|
||||
Amount of memory (in bytes) reserved through dynamic allocation at
|
||||
runtime for loading the combined System Firmware and configuration image
|
||||
tree blob. Keep it as tight as possible, as this directly affects the
|
||||
overall SPL memory footprint.
|
||||
|
||||
config SYS_K3_SPL_ATF
|
||||
bool "Start Cortex-A from SPL"
|
||||
depends on SPL && CPU_V7R
|
||||
|
|
|
|||
|
|
@ -7,4 +7,7 @@ obj-$(CONFIG_SOC_K3_AM6) += am6_init.o
|
|||
obj-$(CONFIG_ARM64) += arm64-mmu.o
|
||||
obj-$(CONFIG_CPU_V7R) += r5_mpu.o lowlevel_init.o
|
||||
obj-$(CONFIG_TI_SECURE_DEVICE) += security.o
|
||||
ifeq ($(CONFIG_SPL_BUILD),y)
|
||||
obj-$(CONFIG_K3_LOAD_SYSFW) += sysfw-loader.o
|
||||
endif
|
||||
obj-y += common.o
|
||||
|
|
|
|||
12
arch/arm/mach-k3/include/mach/sysfw-loader.h
Normal file
12
arch/arm/mach-k3/include/mach/sysfw-loader.h
Normal file
|
|
@ -0,0 +1,12 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0+ */
|
||||
/*
|
||||
* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
|
||||
* Andreas Dannenberg <dannenberg@ti.com>
|
||||
*/
|
||||
|
||||
#ifndef _SYSFW_LOADER_H_
|
||||
#define _SYSFW_LOADER_H_
|
||||
|
||||
void k3_sysfw_loader(void (*config_pm_done_callback)(void));
|
||||
|
||||
#endif
|
||||
260
arch/arm/mach-k3/sysfw-loader.c
Normal file
260
arch/arm/mach-k3/sysfw-loader.c
Normal file
|
|
@ -0,0 +1,260 @@
|
|||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* K3: System Firmware Loader
|
||||
*
|
||||
* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
|
||||
* Andreas Dannenberg <dannenberg@ti.com>
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <spl.h>
|
||||
#include <malloc.h>
|
||||
#include <remoteproc.h>
|
||||
#include <linux/soc/ti/ti_sci_protocol.h>
|
||||
#include <asm/arch/sys_proto.h>
|
||||
|
||||
/* Name of the FIT image nodes for SYSFW and its config data */
|
||||
#define SYSFW_FIRMWARE "sysfw.bin"
|
||||
#define SYSFW_CFG_BOARD "board-cfg.bin"
|
||||
#define SYSFW_CFG_PM "pm-cfg.bin"
|
||||
#define SYSFW_CFG_RM "rm-cfg.bin"
|
||||
#define SYSFW_CFG_SEC "sec-cfg.bin"
|
||||
|
||||
static bool sysfw_loaded;
|
||||
static void *sysfw_load_address;
|
||||
|
||||
/*
|
||||
* Populate SPL hook to override the default load address used by the SPL
|
||||
* loader function with a custom address for SYSFW loading.
|
||||
*/
|
||||
struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
|
||||
{
|
||||
if (sysfw_loaded)
|
||||
return (struct image_header *)(CONFIG_SYS_TEXT_BASE + offset);
|
||||
else if (sysfw_load_address)
|
||||
return sysfw_load_address;
|
||||
else
|
||||
panic("SYSFW load address not defined!");
|
||||
}
|
||||
|
||||
/*
|
||||
* Populate SPL hook to skip the default SPL loader FIT post-processing steps
|
||||
* during SYSFW loading and return to the calling function so we can perform
|
||||
* our own custom processing.
|
||||
*/
|
||||
bool spl_load_simple_fit_skip_processing(void)
|
||||
{
|
||||
return !sysfw_loaded;
|
||||
}
|
||||
|
||||
static int fit_get_data_by_name(const void *fit, int images, const char *name,
|
||||
const void **addr, size_t *size)
|
||||
{
|
||||
int node_offset;
|
||||
|
||||
node_offset = fdt_subnode_offset(fit, images, name);
|
||||
if (node_offset < 0)
|
||||
return -ENOENT;
|
||||
|
||||
return fit_image_get_data(fit, node_offset, addr, size);
|
||||
}
|
||||
|
||||
static void k3_sysfw_load_using_fit(void *fit)
|
||||
{
|
||||
int images;
|
||||
const void *sysfw_addr;
|
||||
size_t sysfw_size;
|
||||
int ret;
|
||||
|
||||
/* Find the node holding the images information */
|
||||
images = fdt_path_offset(fit, FIT_IMAGES_PATH);
|
||||
if (images < 0)
|
||||
panic("Cannot find /images node (%d)\n", images);
|
||||
|
||||
/* Extract System Firmware (SYSFW) image from FIT */
|
||||
ret = fit_get_data_by_name(fit, images, SYSFW_FIRMWARE,
|
||||
&sysfw_addr, &sysfw_size);
|
||||
if (ret < 0)
|
||||
panic("Error accessing %s node in FIT (%d)\n", SYSFW_FIRMWARE,
|
||||
ret);
|
||||
|
||||
/*
|
||||
* Start up system controller firmware
|
||||
*
|
||||
* It is assumed that remoteproc device 0 is the corresponding
|
||||
* system-controller that runs SYSFW. Make sure DT reflects the same.
|
||||
*/
|
||||
ret = rproc_dev_init(0);
|
||||
if (ret)
|
||||
panic("rproc failed to be initialized (%d)\n", ret);
|
||||
|
||||
ret = rproc_load(0, (ulong)sysfw_addr, (ulong)sysfw_size);
|
||||
if (ret)
|
||||
panic("Firmware failed to start on rproc (%d)\n", ret);
|
||||
|
||||
ret = rproc_start(0);
|
||||
if (ret)
|
||||
panic("Firmware init failed on rproc (%d)\n", ret);
|
||||
}
|
||||
|
||||
static void k3_sysfw_configure_using_fit(void *fit,
|
||||
struct ti_sci_handle *ti_sci)
|
||||
{
|
||||
struct ti_sci_board_ops *board_ops = &ti_sci->ops.board_ops;
|
||||
int images;
|
||||
const void *cfg_fragment_addr;
|
||||
size_t cfg_fragment_size;
|
||||
int ret;
|
||||
|
||||
/* Find the node holding the images information */
|
||||
images = fdt_path_offset(fit, FIT_IMAGES_PATH);
|
||||
if (images < 0)
|
||||
panic("Cannot find /images node (%d)\n", images);
|
||||
|
||||
/* Extract board configuration from FIT */
|
||||
ret = fit_get_data_by_name(fit, images, SYSFW_CFG_BOARD,
|
||||
&cfg_fragment_addr, &cfg_fragment_size);
|
||||
if (ret < 0)
|
||||
panic("Error accessing %s node in FIT (%d)\n", SYSFW_CFG_BOARD,
|
||||
ret);
|
||||
|
||||
/* Apply board configuration to SYSFW */
|
||||
ret = board_ops->board_config(ti_sci,
|
||||
(u64)(u32)cfg_fragment_addr,
|
||||
(u32)cfg_fragment_size);
|
||||
if (ret)
|
||||
panic("Failed to set board configuration (%d)\n", ret);
|
||||
|
||||
/* Extract power/clock (PM) specific configuration from FIT */
|
||||
ret = fit_get_data_by_name(fit, images, SYSFW_CFG_PM,
|
||||
&cfg_fragment_addr, &cfg_fragment_size);
|
||||
if (ret < 0)
|
||||
panic("Error accessing %s node in FIT (%d)\n", SYSFW_CFG_PM,
|
||||
ret);
|
||||
|
||||
/* Apply power/clock (PM) specific configuration to SYSFW */
|
||||
ret = board_ops->board_config_pm(ti_sci,
|
||||
(u64)(u32)cfg_fragment_addr,
|
||||
(u32)cfg_fragment_size);
|
||||
if (ret)
|
||||
panic("Failed to set board PM configuration (%d)\n", ret);
|
||||
|
||||
/* Extract resource management (RM) specific configuration from FIT */
|
||||
ret = fit_get_data_by_name(fit, images, SYSFW_CFG_RM,
|
||||
&cfg_fragment_addr, &cfg_fragment_size);
|
||||
if (ret < 0)
|
||||
panic("Error accessing %s node in FIT (%d)\n", SYSFW_CFG_RM,
|
||||
ret);
|
||||
|
||||
/* Apply resource management (RM) configuration to SYSFW */
|
||||
ret = board_ops->board_config_rm(ti_sci,
|
||||
(u64)(u32)cfg_fragment_addr,
|
||||
(u32)cfg_fragment_size);
|
||||
if (ret)
|
||||
panic("Failed to set board RM configuration (%d)\n", ret);
|
||||
|
||||
/* Extract security specific configuration from FIT */
|
||||
ret = fit_get_data_by_name(fit, images, SYSFW_CFG_SEC,
|
||||
&cfg_fragment_addr, &cfg_fragment_size);
|
||||
if (ret < 0)
|
||||
panic("Error accessing %s node in FIT (%d)\n", SYSFW_CFG_SEC,
|
||||
ret);
|
||||
|
||||
/* Apply security configuration to SYSFW */
|
||||
ret = board_ops->board_config_security(ti_sci,
|
||||
(u64)(u32)cfg_fragment_addr,
|
||||
(u32)cfg_fragment_size);
|
||||
if (ret)
|
||||
panic("Failed to set board security configuration (%d)\n",
|
||||
ret);
|
||||
}
|
||||
|
||||
void k3_sysfw_loader(void (*config_pm_done_callback)(void))
|
||||
{
|
||||
struct spl_image_info spl_image = { 0 };
|
||||
struct spl_boot_device bootdev = { 0 };
|
||||
struct ti_sci_handle *ti_sci;
|
||||
int ret;
|
||||
|
||||
/* Reserve a block of aligned memory for loading the SYSFW image */
|
||||
sysfw_load_address = memalign(ARCH_DMA_MINALIGN,
|
||||
CONFIG_K3_SYSFW_IMAGE_SIZE_MAX);
|
||||
if (!sysfw_load_address)
|
||||
panic("Error allocating %u bytes of memory for SYSFW image\n",
|
||||
CONFIG_K3_SYSFW_IMAGE_SIZE_MAX);
|
||||
|
||||
debug("%s: allocated %u bytes at 0x%p\n", __func__,
|
||||
CONFIG_K3_SYSFW_IMAGE_SIZE_MAX, sysfw_load_address);
|
||||
|
||||
/* Set load address for legacy modes that bypass spl_get_load_buffer */
|
||||
spl_image.load_addr = (uintptr_t)sysfw_load_address;
|
||||
|
||||
bootdev.boot_device = spl_boot_device();
|
||||
|
||||
/* Load combined System Controller firmware and config data image */
|
||||
switch (bootdev.boot_device) {
|
||||
#if CONFIG_IS_ENABLED(MMC_SUPPORT)
|
||||
case BOOT_DEVICE_MMC1:
|
||||
case BOOT_DEVICE_MMC2:
|
||||
case BOOT_DEVICE_MMC2_2:
|
||||
ret = spl_mmc_load(&spl_image, &bootdev,
|
||||
#ifdef CONFIG_K3_SYSFW_IMAGE_NAME
|
||||
CONFIG_K3_SYSFW_IMAGE_NAME,
|
||||
#else
|
||||
NULL,
|
||||
#endif
|
||||
#ifdef CONFIG_K3_SYSFW_IMAGE_MMCSD_RAW_MODE_PART
|
||||
CONFIG_K3_SYSFW_IMAGE_MMCSD_RAW_MODE_PART,
|
||||
#else
|
||||
0,
|
||||
#endif
|
||||
#ifdef CONFIG_K3_SYSFW_IMAGE_MMCSD_RAW_MODE_SECT
|
||||
CONFIG_K3_SYSFW_IMAGE_MMCSD_RAW_MODE_SECT);
|
||||
#else
|
||||
0);
|
||||
#endif
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
panic("Loading SYSFW image from device %u not supported!\n",
|
||||
bootdev.boot_device);
|
||||
}
|
||||
|
||||
if (ret)
|
||||
panic("Error %d occurred during loading SYSFW image!\n", ret);
|
||||
|
||||
/*
|
||||
* Now that SYSFW got loaded set helper flag to restore regular SPL
|
||||
* loader behavior so we can later boot into the next stage as expected.
|
||||
*/
|
||||
sysfw_loaded = true;
|
||||
|
||||
/* Ensure the SYSFW image is in FIT format */
|
||||
if (image_get_magic((const image_header_t *)sysfw_load_address) !=
|
||||
FDT_MAGIC)
|
||||
panic("SYSFW image not in FIT format!\n");
|
||||
|
||||
/* Extract and start SYSFW */
|
||||
k3_sysfw_load_using_fit(sysfw_load_address);
|
||||
|
||||
/* Get handle for accessing SYSFW services */
|
||||
ti_sci = get_ti_sci_handle();
|
||||
|
||||
/* Parse and apply the different SYSFW configuration fragments */
|
||||
k3_sysfw_configure_using_fit(sysfw_load_address, ti_sci);
|
||||
|
||||
/*
|
||||
* Now that all clocks and PM aspects are setup, invoke a user-
|
||||
* provided callback function. Usually this callback would be used
|
||||
* to setup or re-configure the U-Boot console UART.
|
||||
*/
|
||||
if (config_pm_done_callback)
|
||||
config_pm_done_callback();
|
||||
|
||||
/* Output System Firmware version info */
|
||||
printf("SYSFW ABI: %d.%d (firmware rev 0x%04x '%.*s')\n",
|
||||
ti_sci->version.abi_major, ti_sci->version.abi_minor,
|
||||
ti_sci->version.firmware_revision,
|
||||
sizeof(ti_sci->version.firmware_description),
|
||||
ti_sci->version.firmware_description);
|
||||
}
|
||||
Loading…
Reference in a new issue