From 3b6460809c2a28360029c1c48247648fac4455c9 Mon Sep 17 00:00:00 2001 From: Mike Looijmans Date: Tue, 20 Sep 2016 11:37:24 +0200 Subject: [PATCH] tools: mkimage: Add support for initialization table for Zynq and ZynqMP The Zynq/ZynqMP boot.bin file contains a region for register initialization data. Filling in proper values in this table can reduce boot time (e.g. about 50ms faster on QSPI boot) and also reduce the size of the SPL binary. The table is a simple text file with register+data on each line. Other lines are simply skipped. The file can be passed to mkimage using the "-R" parameter. It is recommended to add reg init file to board folder. For example: CONFIG_BOOT_INIT_FILE="board/xilinx/zynqmp/xilinx_zynqmp_zcu102/reg.int Signed-off-by: Mike Looijmans Signed-off-by: Michal Simek --- arch/arm/cpu/armv8/zynqmp/Kconfig | 7 +++++++ arch/arm/mach-zynq/Kconfig | 7 +++++++ scripts/Makefile.spl | 4 ++-- tools/zynqimage.c | 28 ++++++++++++++++++++++++++++ tools/zynqmpimage.c | 28 ++++++++++++++++++++++++++++ 5 files changed, 72 insertions(+), 2 deletions(-) diff --git a/arch/arm/cpu/armv8/zynqmp/Kconfig b/arch/arm/cpu/armv8/zynqmp/Kconfig index 1eedb39aa5..a3baae4f74 100644 --- a/arch/arm/cpu/armv8/zynqmp/Kconfig +++ b/arch/arm/cpu/armv8/zynqmp/Kconfig @@ -41,6 +41,13 @@ config SYS_CONFIG_NAME Based on this option include/configs/.h header will be used for board configuration. +config BOOT_INIT_FILE + string "boot.bin init register filename" + default "" + help + Add register writes to boot.bin format (max 256 pairs). + Expect a table of register-value pairs, e.g. "0x12345678 0x4321" + config ZYNQMP_USB bool "Configure ZynqMP USB" diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig index a1175eea6e..44e16af863 100644 --- a/arch/arm/mach-zynq/Kconfig +++ b/arch/arm/mach-zynq/Kconfig @@ -44,4 +44,11 @@ config SYS_CONFIG_NAME config SYS_MALLOC_F_LEN default 0x600 +config BOOT_INIT_FILE + string "boot.bin init register filename" + default "" + help + Add register writes to boot.bin format (max 256 pairs). + Expect a table of register-value pairs, e.g. "0x12345678 0x4321" + endif diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl index e0b0117dc9..03a2f061a4 100644 --- a/scripts/Makefile.spl +++ b/scripts/Makefile.spl @@ -146,10 +146,10 @@ boot.bin: $(obj)/u-boot-spl.bin FORCE $(call if_changed,mkimage) else ifdef CONFIG_ARCH_ZYNQ -MKIMAGEFLAGS_boot.bin = -T zynqimage +MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) endif ifdef CONFIG_ARCH_ZYNQMP -MKIMAGEFLAGS_boot.bin = -T zynqmpimage +MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) endif spl/boot.bin: $(obj)/u-boot-spl.bin FORCE diff --git a/tools/zynqimage.c b/tools/zynqimage.c index c43bd5d488..43876e7a30 100644 --- a/tools/zynqimage.c +++ b/tools/zynqimage.c @@ -222,6 +222,30 @@ static int zynqimage_check_image_types(uint8_t type) return EXIT_FAILURE; } +static void zynqimage_parse_initparams(struct zynq_header *zynqhdr, + const char *filename) +{ + /* Expect a table of register-value pairs, e.g. "0x12345678 0x4321" */ + FILE *fp = fopen(filename, "r"); + struct zynq_reginit reginit; + unsigned int reg_count = 0; + int r; + + if (!fp) { + fprintf(stderr, "Cannot open initparams file: %s\n", filename); + exit(1); + } + do { + r = fscanf(fp, "%x %x", ®init.address, ®init.data); + if (r == 2) { + zynqhdr->register_init[reg_count] = reginit; + ++reg_count; + } + r = fscanf(fp, "%*[^\n]\n"); /* Skip to next line */ + } while ((r != EOF) && (reg_count < HEADER_REGINITS)); + fclose(fp); +} + static void zynqimage_set_header(void *ptr, struct stat *sbuf, int ifd, struct image_tool_params *params) { @@ -237,6 +261,10 @@ static void zynqimage_set_header(void *ptr, struct stat *sbuf, int ifd, if (params->eflag) zynqhdr->image_load = cpu_to_le32((uint32_t)params->ep); + /* User can pass in text file with init list */ + if (strlen(params->imagename2)) + zynqimage_parse_initparams(zynqhdr, params->imagename2); + zynqhdr->checksum = zynqimage_checksum(zynqhdr); } diff --git a/tools/zynqmpimage.c b/tools/zynqmpimage.c index 3f28eb401d..d08144c2bd 100644 --- a/tools/zynqmpimage.c +++ b/tools/zynqmpimage.c @@ -234,6 +234,30 @@ static int zynqmpimage_check_image_types(uint8_t type) return EXIT_FAILURE; } +static void zynqmpimage_parse_initparams(struct zynqmp_header *zynqhdr, + const char *filename) +{ + /* Expect a table of register-value pairs, e.g. "0x12345678 0x4321" */ + FILE *fp = fopen(filename, "r"); + struct zynqmp_reginit reginit; + unsigned int reg_count = 0; + int r; + + if (!fp) { + fprintf(stderr, "Cannot open initparams file: %s\n", filename); + exit(1); + } + do { + r = fscanf(fp, "%x %x", ®init.address, ®init.data); + if (r == 2) { + zynqhdr->register_init[reg_count] = reginit; + ++reg_count; + } + r = fscanf(fp, "%*[^\n]\n"); /* Skip to next line */ + } while ((r != EOF) && (reg_count < HEADER_REGINITS)); + fclose(fp); +} + static void zynqmpimage_set_header(void *ptr, struct stat *sbuf, int ifd, struct image_tool_params *params) { @@ -250,6 +274,10 @@ static void zynqmpimage_set_header(void *ptr, struct stat *sbuf, int ifd, if (params->eflag) zynqhdr->image_load = cpu_to_le32((uint32_t)params->ep); + /* User can pass in text file with init list */ + if (strlen(params->imagename2)) + zynqmpimage_parse_initparams(zynqhdr, params->imagename2); + zynqhdr->checksum = zynqmpimage_checksum(zynqhdr); }