[U-Boot] [PATCH v1 7/8] lpc32xx: add lpc32xx-spl.bin boot image target
Albert ARIBAUD (3ADEV)
albert.aribaud at 3adev.fr
Fri Jan 16 08:19:19 CET 2015
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud at 3adev.fr>
---
Makefile | 3 +
scripts/Makefile.spl | 11 ++++
tools/.gitignore | 1 +
tools/Makefile | 2 +
tools/mklpc32xxboot.c | 169 ++++++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 186 insertions(+)
create mode 100644 tools/mklpc32xxboot.c
diff --git a/Makefile b/Makefile
index 36a9a28..f5c9da5 100644
--- a/Makefile
+++ b/Makefile
@@ -1198,6 +1198,9 @@ spl/u-boot-spl: tools prepare
spl/sunxi-spl.bin: spl/u-boot-spl
@:
+spl/lpc32xx-spl.bin: spl/u-boot-spl
+ @:
+
tpl/u-boot-tpl.bin: tools prepare
$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index ecf3037..4020383 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -158,6 +158,10 @@ ALL-y += $(obj)/sunxi-spl.bin
endif
endif
+ifdef CONFIG_LPC32XX_SPL
+ALL-y += $(obj)/lpc32xx-spl.bin
+endif
+
ifeq ($(CONFIG_SYS_SOC),"at91")
ALL-y += boot.bin
endif
@@ -196,6 +200,13 @@ $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
$(call if_changed,mksunxiboot)
endif
+ifdef CONFIG_LPC32XX_SPL
+quiet_cmd_mklpc32xxboot = MKLPC32XX $@
+cmd_mklpc32xxboot = $(objtree)/tools/mklpc32xxboot $< $@
+$(obj)/lpc32xx-spl.bin: $(obj)/$(SPL_BIN).bin
+ $(call if_changed,mklpc32xxboot)
+endif
+
quiet_cmd_u-boot-spl = LD $@
cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
$(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
diff --git a/tools/.gitignore b/tools/.gitignore
index 9bc9fec..79a5d75 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -11,6 +11,7 @@
/mkenvimage
/mkimage
/mkexynosspl
+/mklpc32xxboot
/mpc86x_clk
/mxsboot
/mksunxiboot
diff --git a/tools/Makefile b/tools/Makefile
index e549f8e..6fe21b0 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -135,6 +135,8 @@ HOSTCFLAGS_mxsboot.o := -pedantic
hostprogs-$(CONFIG_SUNXI) += mksunxiboot
+hostprogs-$(CONFIG_LPC32XX_SPL) += mklpc32xxboot
+
hostprogs-$(CONFIG_NETCONSOLE) += ncb
hostprogs-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1
diff --git a/tools/mklpc32xxboot.c b/tools/mklpc32xxboot.c
new file mode 100644
index 0000000..9f7d72e
--- /dev/null
+++ b/tools/mklpc32xxboot.c
@@ -0,0 +1,169 @@
+/*
+ * LPC32XX NAND boot image generator
+ *
+ * For details on NAND boot, see LPC32XX UM chapter 35 (boot process)
+ *
+ * (C) Copyright 2014 DENX Software Engineering GmbH
+ * Written-by: Albert ARIBAUD <albert.aribaud at 3adev.fr>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+/*
+ * NAND page 0 boot header
+ */
+
+struct nand_page_0_boot_header {
+ uint32_t data[129];
+ uint32_t pad[383];
+};
+
+/*
+ * Default ICC (interface configuration data [sic]) if none specified
+ * in board config
+ */
+
+#ifndef LPC32XX_BOOT_ICR
+#define LPC32XX_BOOT_ICR 0x00000096
+#endif
+
+/*
+ * Default boot NAND page size if none specified in board config
+ */
+
+#ifndef LPC32XX_BOOT_NAND_PAGESIZE
+#define LPC32XX_BOOT_NAND_PAGESIZE 2048
+#endif
+
+/*
+ * Default boot NAND pages per sector if none specified in board config
+ */
+
+#ifndef LPC32XX_BOOT_NAND_PAGES_PER_SECTOR
+#define LPC32XX_BOOT_NAND_PAGES_PER_SECTOR 64
+#endif
+
+/*
+ * Maximum size for boot code is 56K unless defined in board config
+ */
+
+#ifndef LPC32XX_BOOT_CODESIZE
+#define LPC32XX_BOOT_CODESIZE (56*1024)
+#endif
+
+/* signature byte for a readable block */
+
+#define LPC32XX_BOOT_BLOCK_OK 0xaa
+
+/*
+ * Output boot data for both sectors 0 and 1
+ */
+
+int main(int argc, char *argv[])
+{
+ int fd_in, fd_out;
+ struct nand_page_0_boot_header header;
+ uint8_t page[LPC32XX_BOOT_NAND_PAGESIZE];
+ unsigned file_size_b;
+ unsigned file_size_p;
+ int sectors_left, pages_left, bytes_left, bytes_read;
+
+ if (argc < 2) {
+ printf("\tThis program takes an u-boot-spl.bin file "
+ "as input and produces an LPC32XX boot image.\n"
+ "\tUsage: %s input_file output_file\n", argv[0]);
+ return EXIT_FAILURE;
+ }
+
+ fd_in = open(argv[1], O_RDONLY);
+ if (fd_in < 0) {
+ perror(argv[1]);
+ return 1;
+ }
+
+ /* get input file size in bytes */
+ file_size_b = lseek(fd_in, 0, SEEK_END);
+
+ /* check maximum size */
+ if (file_size_b > LPC32XX_BOOT_CODESIZE) {
+ fprintf(stderr, "ERROR: File too large!\n");
+ return 2;
+ }
+
+ /* turn filesize from bytes to NAND pages, page 0 included */
+ file_size_p = ((file_size_b + (2 * LPC32XX_BOOT_NAND_PAGESIZE) - 1)
+ / LPC32XX_BOOT_NAND_PAGESIZE);
+
+ /* fill header -- default byte value is 0x00, not 0xFF */
+ memset(&header, 0, sizeof(header));
+ header.data[0] = (header.data[2] = 0xff & LPC32XX_BOOT_ICR);
+ header.data[1] = (header.data[3] = 0xff & ~LPC32XX_BOOT_ICR);
+ header.data[4] = (header.data[6] = (header.data[8]
+ = (header.data[10] = 0xff & file_size_p)));
+ header.data[5] = (header.data[7] = (header.data[9]
+ = (header.data[11] = 0xff & ~file_size_p)));
+ header.data[12] = (header.data[128] = LPC32XX_BOOT_BLOCK_OK);
+
+ /* open the boot file for writing */
+ fd_out = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ if (fd_out < 0) {
+ perror(argv[2]);
+ return 3;
+ }
+
+ /* write sectors 0 then 1 */
+ for (sectors_left = 2; sectors_left > 0; sectors_left--) {
+ /* write header */
+ if (write(fd_out, &header, sizeof(header)) != sizeof(header)) {
+ perror(argv[2]);
+ return 4;
+ }
+
+ /* write file, page-wise */
+ bytes_left = file_size_b;
+ lseek(fd_in, 0, SEEK_SET);
+ while (bytes_left) {
+ bytes_read = sizeof(page);
+ if (bytes_read > bytes_left)
+ bytes_read = bytes_left;
+ memset(page, 0xFF, sizeof(page));
+ if (read(fd_in, page, bytes_read) != bytes_read) {
+ perror(argv[1]);
+ return 5;
+ }
+ if (write(fd_out, page, sizeof(page))
+ != sizeof(page)) {
+ perror(argv[2]);
+ return 6;
+ }
+ bytes_left -= bytes_read;
+ }
+
+ /* pad with blank pages */
+ memset(page, 0xFF, sizeof(page));
+ /* fill sector minus header and SPL */
+ pages_left = LPC32XX_BOOT_NAND_PAGES_PER_SECTOR
+ - file_size_p - 1;
+ while (pages_left) {
+ if (write(fd_out, page, sizeof(page))
+ != sizeof(page)) {
+ perror(argv[2]);
+ return 7;
+ }
+ pages_left--;
+ }
+ }
+
+ close(fd_in);
+ close(fd_out);
+
+ return 0;
+}
--
2.1.0
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