2016-09-27 22:41 GMT-07:00 Mike Looijmans <mike.looijm...@topic.nl>:
> 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 <mike.looijm...@topic.nl>
> Signed-off-by: Michal Simek <michal.si...@xilinx.com>
> ---
> v2: Add ${srctree} to initialisation path to fix out-of-tree builds
>
> 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 1eedb39..a3baae4 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/<CONFIG_SYS_CONFIG_NAME>.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 a1175ee..44e16af 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 5a7f79c..18436b9 100644
> --- a/scripts/Makefile.spl
> +++ b/scripts/Makefile.spl
> @@ -142,10 +142,10 @@ 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 c43bd5d..43876e7 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 3f28eb4..d08144c 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);
> }
>
> --
> 1.9.1
>
> _______________________________________________
> U-Boot mailing list
> U-Boot@lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>
Applied.
Thanks,
Michal
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform
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