[U-Boot] [PATCH v2 3/7] tools: dynamically allocate imx_header in imximage
Stefano Babic
sbabic at denx.de
Mon Aug 12 16:39:30 CEST 2013
Change to dynamically allocate the imx_header to correctly
allocate the IVT, Boot Data and DCD at correct locations
depending on the boot media.
Also check that the Image Vector Table Offset + IVT +
Boot Data + DCD <= Initial Load Region Size.
Previously struct imx_header was always 4096 bytes and was
not dealing correctly with the Image Vector Table Offset.
Now, the memory allocation looks for e.g. SD boot like this
Storage u-boot.imx RAM
Device
00000000 177ff000 <--------------
|
00000400 00000000 d1 00 20 40 IVT.header 177ff400 <------- |
00000404 00000004 00 00 80 17 IVT.entry 177ff404 ----------- |
00000408 00000008 00 00 00 00 IVT.reserved1 177ff408 | | |
0000040C 0000000C 2c f4 7f 17 IVT.dcd 177ff40C ------ | | |
00000410 00000010 20 f4 7f 17 IVT.boot 177ff410 ---- | | | |
00000414 00000014 00 f4 7f 17 IVT.self 177ff414 -------- | |
00000418 00000018 00 00 00 00 IVT.csf 177ff418 | | | |
0000041C 0000001C 00 00 00 00 IVT.reserved2 177ff41C | | | |
00000420 00000020 00 f0 7f 17 BootData.start 177ff420 <--- | | ---
00000424 00000024 00 60 03 00 BootData.length 177ff424 | |
00000428 00000028 00 00 00 00 BootData.plugin 177ff428 | |
0000042C 0000002C d2 03 30 40 DCD.header 177ff42C <----- |
... |
00001000 00000c00 13 00 00 ea U-Boot Start 17800000 <----------
While at it also remove the unused #define HEADER_OFFSET.
Signed-off-by: Stefano Babic <sbabic at denx.de>
---
Changes in v2:
- drop dead code (Marek Vasut)
tools/imximage.c | 43 ++++++++++++++++++++++++++++++++++++-------
tools/imximage.h | 16 +++++++++++++---
2 files changed, 49 insertions(+), 10 deletions(-)
diff --git a/tools/imximage.c b/tools/imximage.c
index 494446e..2b4909e 100644
--- a/tools/imximage.c
+++ b/tools/imximage.c
@@ -31,7 +31,7 @@ static table_entry_t imximage_cmds[] = {
* Supported Boot options for configuration file
* this is needed to set the correct flash offset
*/
-static table_entry_t imximage_bootops[] = {
+static table_entry_t imximage_boot_offset[] = {
{FLASH_OFFSET_ONENAND, "onenand", "OneNAND Flash",},
{FLASH_OFFSET_NAND, "nand", "NAND Flash", },
{FLASH_OFFSET_NOR, "nor", "NOR Flash", },
@@ -42,6 +42,20 @@ static table_entry_t imximage_bootops[] = {
};
/*
+ * Supported Boot options for configuration file
+ * this is needed to determine the initial load size
+ */
+static table_entry_t imximage_boot_loadsize[] = {
+ {FLASH_LOADSIZE_ONENAND, "onenand", "OneNAND Flash",},
+ {FLASH_LOADSIZE_NAND, "nand", "NAND Flash", },
+ {FLASH_LOADSIZE_NOR, "nor", "NOR Flash", },
+ {FLASH_LOADSIZE_SATA, "sata", "SATA Disk", },
+ {FLASH_LOADSIZE_SD, "sd", "SD Card", },
+ {FLASH_LOADSIZE_SPI, "spi", "SPI Flash", },
+ {-1, "", "Invalid", },
+};
+
+/*
* IMXIMAGE version definition for i.MX chips
*/
static table_entry_t imximage_versions[] = {
@@ -54,6 +68,8 @@ static struct imx_header imximage_header;
static uint32_t imximage_version;
/* Image Vector Table Offset */
static uint32_t imximage_ivt_offset;
+/* Initial Load Region Size */
+static uint32_t imximage_init_loadsize;
static set_dcd_val_t set_dcd_val;
static set_dcd_rst_t set_dcd_rst;
@@ -195,7 +211,8 @@ static void set_imx_hdr_v1(struct imx_header *imxhdr, uint32_t dcd_len,
/* Set magic number */
fhdr_v1->app_code_barker = APP_CODE_BARKER;
- hdr_base = entry_point - sizeof(struct imx_header);
+ /* TODO: check i.MX image V1 handling, for now use 'old' style */
+ hdr_base = entry_point - 4096;
fhdr_v1->app_dest_ptr = hdr_base - flash_offset;
fhdr_v1->app_code_jump_vector = entry_point;
@@ -222,12 +239,13 @@ static void set_imx_hdr_v2(struct imx_header *imxhdr, uint32_t dcd_len,
fhdr_v2->entry = entry_point;
fhdr_v2->reserved1 = fhdr_v2->reserved2 = 0;
- fhdr_v2->self = hdr_base = entry_point - sizeof(struct imx_header);
-
+ hdr_base = entry_point - imximage_init_loadsize +
+ flash_offset;
+ fhdr_v2->self = hdr_base;
fhdr_v2->dcd_ptr = hdr_base + offsetof(imx_header_v2_t, dcd_table);
fhdr_v2->boot_data_ptr = hdr_base
+ offsetof(imx_header_v2_t, boot_data);
- hdr_v2->boot_data.start = hdr_base - flash_offset;
+ hdr_v2->boot_data.start = entry_point - imximage_init_loadsize;
/* Security feature are not supported */
fhdr_v2->csf = 0;
@@ -329,13 +347,24 @@ static void parse_cfg_cmd(struct imx_header *imxhdr, int32_t cmd, char *token,
set_hdr_func(imxhdr);
break;
case CMD_BOOT_FROM:
- imximage_ivt_offset = get_table_entry_id(imximage_bootops,
+ imximage_ivt_offset = get_table_entry_id(imximage_boot_offset,
"imximage boot option", token);
if (imximage_ivt_offset == -1) {
fprintf(stderr, "Error: %s[%d] -Invalid boot device"
"(%s)\n", name, lineno, token);
exit(EXIT_FAILURE);
}
+
+ imximage_init_loadsize =
+ get_table_entry_id(imximage_boot_loadsize,
+ "imximage boot option", token);
+
+ if (imximage_init_loadsize == -1) {
+ fprintf(stderr,
+ "Error: %s[%d] -Invalid boot device(%s)\n",
+ name, lineno, token);
+ exit(EXIT_FAILURE);
+ }
if (unlikely(cmd_ver_first != 1))
cmd_ver_first = 0;
break;
@@ -517,7 +546,7 @@ static void imximage_set_header(void *ptr, struct stat *sbuf, int ifd,
*
* The remaining fraction of a block bytes would not be loaded!
*/
- *header_size_ptr = ROUND(sbuf->st_size + imximage_ivt_offset, 4096);
+ *header_size_ptr = ROUND(sbuf->st_size, 4096);
}
int imximage_check_params(struct mkimage_params *params)
diff --git a/tools/imximage.h b/tools/imximage.h
index ec629a5..bb04a43 100644
--- a/tools/imximage.h
+++ b/tools/imximage.h
@@ -13,14 +13,14 @@
#define APP_CODE_BARKER 0xB1
#define DCD_BARKER 0xB17219E9
-#define HEADER_OFFSET 0x400
-
/*
* NOTE: This file must be kept in sync with arch/arm/include/asm/\
* imx-common/imximage.cfg because tools/imximage.c can not
* cross-include headers from arch/arm/ and vice-versa.
*/
#define CMD_DATA_STR "DATA"
+
+/* Initial Vector Table Offset */
#define FLASH_OFFSET_UNDEFINED 0xFFFFFFFF
#define FLASH_OFFSET_STANDARD 0x400
#define FLASH_OFFSET_NAND FLASH_OFFSET_STANDARD
@@ -30,6 +30,16 @@
#define FLASH_OFFSET_NOR 0x1000
#define FLASH_OFFSET_SATA FLASH_OFFSET_STANDARD
+/* Initial Load Region Size */
+#define FLASH_LOADSIZE_UNDEFINED 0xFFFFFFFF
+#define FLASH_LOADSIZE_STANDARD 0x1000
+#define FLASH_LOADSIZE_NAND FLASH_LOADSIZE_STANDARD
+#define FLASH_LOADSIZE_SD FLASH_LOADSIZE_STANDARD
+#define FLASH_LOADSIZE_SPI FLASH_LOADSIZE_STANDARD
+#define FLASH_LOADSIZE_ONENAND 0x400
+#define FLASH_LOADSIZE_NOR 0x0 /* entire image */
+#define FLASH_LOADSIZE_SATA FLASH_LOADSIZE_STANDARD
+
#define IVT_HEADER_TAG 0xD1
#define IVT_VERSION 0x40
#define DCD_HEADER_TAG 0xD2
@@ -147,7 +157,7 @@ struct imx_header {
imx_header_v1_t hdr_v1;
imx_header_v2_t hdr_v2;
} header;
-} __attribute__((aligned(4096)));
+};
typedef void (*set_dcd_val_t)(struct imx_header *imxhdr,
char *name, int lineno,
--
1.7.9.5
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