From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Glass Date: Sun, 20 Oct 2019 21:31:38 -0600 Subject: [U-Boot] [PATCH v3 005/108] binman: Add a library to access binman entries In-Reply-To: <20191021033322.217715-2-sjg@chromium.org> References: <20191021033322.217715-2-sjg@chromium.org> Message-ID: <20191021033322.217715-6-sjg@chromium.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de SPL and TPL can access information about binman entries using link-time symbols but this is not available in U-Boot proper. Of course it could be made available, but the intention is to just read the device tree. Add support for this, so that U-Boot can locate entries. Signed-off-by: Simon Glass --- Changes in v3: None Changes in v2: None common/board_r.c | 10 ++++++++++ include/binman.h | 27 +++++++++++++++++++++++++++ lib/Kconfig | 10 ++++++++++ lib/Makefile | 1 + lib/binman.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 96 insertions(+) create mode 100644 include/binman.h create mode 100644 lib/binman.c diff --git a/common/board_r.c b/common/board_r.c index d6fb5047a26..e0f3eb325aa 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -15,6 +15,7 @@ #if defined(CONFIG_CMD_BEDBUG) #include #endif +#include #include #include #include @@ -342,6 +343,14 @@ static int initr_manual_reloc_cmdtable(void) } #endif +static int initr_binman(void) +{ + if (!CONFIG_IS_ENABLED(BINMAN_FDT)) + return 0; + + return binman_init(); +} + #if defined(CONFIG_MTD_NOR_FLASH) static int initr_flash(void) { @@ -693,6 +702,7 @@ static init_fnc_t init_sequence_r[] = { #ifdef CONFIG_EFI_LOADER efi_memory_init, #endif + initr_binman, stdio_init_tables, initr_serial, initr_announce, diff --git a/include/binman.h b/include/binman.h new file mode 100644 index 00000000000..cc9ec77797f --- /dev/null +++ b/include/binman.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: Intel */ +/* + * Access to binman information at runtime + * + * Copyright 2019 Google LLC + * Written by Simon Glass + */ + +#ifndef _BINMAN_H_ +#define _BINMAN_H_ + +/** + *struct binman_entry - information about a binman entry + * + * @image_pos: Position of entry in the image + * @size: Size of entry + */ +struct binman_entry { + u32 image_pos; + u32 size; +}; + +int binman_entry_find(const char *name, struct binman_entry *entry); + +int binman_init(void); + +#endif diff --git a/lib/Kconfig b/lib/Kconfig index 135f0b372b0..291d42324d1 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -7,6 +7,16 @@ config BCH This is used by SoC platforms which do not have built-in ELM hardware engine required for BCH ECC correction. +config BINMAN_FDT + bool "Allow access to binman information in the device tree" + depends on BINMAN + default y + help + This enables U-Boot to access information about binman entries, + stored in the device tree in a binman node. Typical uses are to + locate entries in the firmware image. See binman.h for the available + functionality. + config CC_OPTIMIZE_LIBS_FOR_SPEED bool "Optimize libraries for speed" help diff --git a/lib/Makefile b/lib/Makefile index d248d8626ce..0c89b4896fe 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_ARCH_AT91) += at91/ obj-$(CONFIG_OPTEE) += optee/ obj-$(CONFIG_AES) += aes.o +obj-$(CONFIG_$(SPL_TPL_)BINMAN_FDT) += binman.o ifndef API_BUILD ifneq ($(CONFIG_UT_UNICODE)$(CONFIG_EFI_LOADER),) diff --git a/lib/binman.c b/lib/binman.c new file mode 100644 index 00000000000..1774bdf2e5c --- /dev/null +++ b/lib/binman.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: Intel +/* + * Access to binman information at runtime + * + * Copyright 2019 Google LLC + * Written by Simon Glass + */ + +#include +#include +#include + +struct binman_info { + ofnode image; +}; + +static struct binman_info *binman; + +int binman_entry_find(const char *name, struct binman_entry *entry) +{ + ofnode node; + int ret; + + node = ofnode_find_subnode(binman->image, name); + if (!ofnode_valid(node)) + return log_msg_ret("no binman node", -ENOENT); + + ret = ofnode_read_u32(node, "image-pos", &entry->image_pos); + if (ret) + return log_msg_ret("bad binman node1", ret); + ret = ofnode_read_u32(node, "size", &entry->size); + if (ret) + return log_msg_ret("bad binman node2", ret); + + return 0; +} + +int binman_init(void) +{ + binman = malloc(sizeof(struct binman_info)); + if (!binman) + return log_msg_ret("space for binman", -ENOMEM); + binman->image = ofnode_path("/binman"); + if (!ofnode_valid(binman->image)) + return log_msg_ret("binman node", -EINVAL); + + return 0; +} -- 2.23.0.866.gb869b98d4c-goog