[U-Boot] [PATCH v3 0/3] Add atmel ROM code image

[U-Boot] [PATCH v3 0/3] Add atmel ROM code image

[Andreas Bießmann]

This series add atmelimage support to mkimage.

An atmelimage is a quite dumb image type cause it has no real header. The file
is mostly unmodified but the 6'th ARM vector gets replaced by the image size
to load.

Heiko, I know your approach setting the vector in start.S but I think this
solution is a bit smarter. We would need to patch at least 2 start.S files
(arm926ejs and armv7), maybe also the arm920t one too. In fact is the
conversion of executable BLOB to ROM detected executable BLOB something that
should really be done afterwards as all other SoC vendors do.

In version 2 of this patchset the atmelimage mkimage target can also generate
PMECC NAND header.

In version 3 of this patchset the new host tool atmel_pmecc_params generate
the configuration string for mkimage with the same settings used in atmel_nand
driver.

Changes in v3:
* remove check for 'usePmecc=y'
* add atmel_pmecc_params host tool, it generates an appropriate string for
  mkimage -n switch with compiled in values also used in atmel_nand driver
* use CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER

Changes in v2:
* do not check filesize in atmelimage
* add PMECC header generation and printout
* add printout of 6'th vector
* add -n switch to mkimage for PMECC type NAND and CONFIG_SYS_NANDFLASH

Andreas Bie?mann (3):
  mkimage: add atmelimage
  arm:at91: enable ROM loadable atmel image
  sama5d3xek: enable PMECC header generation

 arch/arm/cpu/armv7/at91/config.mk |   10 ++
 common/image.c                    |    1 +
 doc/README.atmel_pmecc            |   21 +++
 include/configs/sama5d3xek.h      |    1 +
 include/image.h                   |    1 +
 spl/Makefile                      |   11 ++
 tools/Makefile                    |    3 +
 tools/atmel_pmecc_params.c        |   51 ++++++
 tools/atmelimage.c                |  342 +++++++++++++++++++++++++++++++++++++
 tools/imagetool.c                 |    2 +
 tools/imagetool.h                 |    1 +
 11 files changed, 444 insertions(+)
 create mode 100644 arch/arm/cpu/armv7/at91/config.mk
 create mode 100644 tools/atmel_pmecc_params.c
 create mode 100644 tools/atmelimage.c

-- 
1.7.10.4

[U-Boot] [PATCH v3 1/3] mkimage: add atmelimage

[Andreas Bießmann]

The new atmelimage converts a machine code BLOB to bootable ROM image. Atmel
ROM has no sophisticated image format, it only checks the first 7 ARM vectors.
The vectors can contain valid B or LDR opcodes, the 6'th vector contains the
image size to load.

Additionally the PMECC header can be written by the atmelimage target. The
parameters must be given via the -n switch as a coma separated list. For
example:

mkimage -T atmelimage \
 -n usePmecc=1,sectorPerPage=4,sectorSize=512,spareSize=64,eccBits=4,eccOffset=36 \
 -d spl/u-boot-spl.bin boot.bin

A provided image can be checked for correct header setup. It prints out the
PMECC header parameters if it has one and the 6'th interrupt vector content.

---8<---
Image Type:	ATMEL ROM-Boot Image with PMECC Header
		PMECC header
		====================
		eccOffset:        36
		sectorSize:      512
		eccBitReq:         4
		spareSize:        64
		nbSectorPerPage:   4
		usePmecc:          1
		====================
		6'th vector has 17044 set
--->8---

A SPL binary modified with the atmelimage mkimage target was succesfully
booted on a sama5d34ek via MMC and NAND.

Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
Cc: Bo Shen <voice.shen@atmel.com>
Cc: Heiko Schocher <hs@denx.de>
---

Changes in v3:
* remove check for 'usePmecc=y'

Changes in v2:
* do not check filesize in atmelimage
* add PMECC header generation and printout
* add printout of 6'th vector

 common/image.c     |    1 +
 include/image.h    |    1 +
 tools/Makefile     |    1 +
 tools/atmelimage.c |  342 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 tools/imagetool.c  |    2 +
 tools/imagetool.h  |    1 +
 6 files changed, 348 insertions(+)
 create mode 100644 tools/atmelimage.c

diff --git a/common/image.c b/common/image.c
index fcc5a9c..7cb0bd7 100644
--- a/common/image.c
+++ b/common/image.c
@@ -139,6 +139,7 @@ static const table_entry_t uimage_type[] = {
 	{	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
 	{	IH_TYPE_UBLIMAGE,   "ublimage",   "Davinci UBL image",},
 	{	IH_TYPE_MXSIMAGE,   "mxsimage",   "Freescale MXS Boot Image",},
+	{	IH_TYPE_ATMELIMAGE, "atmelimage", "ATMEL ROM-Boot Image",},
 	{	-1,		    "",		  "",			},
 };
 
diff --git a/include/image.h b/include/image.h
index b278778..9c3b9b8 100644
--- a/include/image.h
+++ b/include/image.h
@@ -225,6 +225,7 @@ struct lmb;
 #define IH_TYPE_PBLIMAGE	15	/* Freescale PBL Boot Image	*/
 #define IH_TYPE_MXSIMAGE	16	/* Freescale MXSBoot Image	*/
 #define IH_TYPE_GPIMAGE		17	/* TI Keystone GPHeader Image	*/
+#define IH_TYPE_ATMELIMAGE	18	/* ATMEL ROM bootable Image	*/
 
 /*
  * Compression Types
diff --git a/tools/Makefile b/tools/Makefile
index 6e43a01..421ff50 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -69,6 +69,7 @@ RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := rsa-sign.o rsa-verify.o rsa-checksum.o
 
 # common objs for dumpimage and mkimage
 dumpimage-mkimage-objs := aisimage.o \
+			atmelimage.o \
 			$(FIT_SIG_OBJS-y) \
 			crc32.o \
 			default_image.o \
diff --git a/tools/atmelimage.c b/tools/atmelimage.c
new file mode 100644
index 0000000..c8101d2
--- /dev/null
+++ b/tools/atmelimage.c
@@ -0,0 +1,342 @@
+/*
+ * (C) Copyright 2014
+ * Andreas Bie?mann <andreas.devel@googlemail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "imagetool.h"
+#include "mkimage.h"
+
+#include <image.h>
+
+#define pr_err(fmt, args...) fprintf(stderr, "atmelimage Error: " fmt, ##args)
+
+static int atmel_check_image_type(uint8_t type)
+{
+	if (type == IH_TYPE_ATMELIMAGE)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+static uint32_t nand_pmecc_header[52];
+
+/*
+ * A helper struct for parsing the mkimage -n parameter
+ *
+ * Keep in same order as the configs array!
+ */
+static struct pmecc_config {
+	int use_pmecc;
+	int sector_per_page;
+	int spare_size;
+	int ecc_bits;
+	int sector_size;
+	int ecc_offset;
+} pmecc;
+
+/*
+ * Strings used for configure the PMECC header via -n mkimage switch
+ *
+ * We estimate a coma separated list of key=value pairs. The mkimage -n
+ * parameter argument should not contain any whitespace.
+ *
+ * Keep in same order as struct pmecc_config!
+ */
+static const char * const configs[] = {
+	"usePmecc",
+	"sectorPerPage",
+	"spareSize",
+	"eccBits",
+	"sectorSize",
+	"eccOffset"
+};
+
+static int atmel_find_pmecc_parameter_in_token(const char *token)
+{
+	size_t pos;
+	char *param;
+
+	debug("token: '%s'\n", token);
+
+	for (pos = 0; pos < ARRAY_SIZE(configs); pos++) {
+		if (strncmp(token, configs[pos], strlen(configs[pos])) == 0) {
+			param = strstr(token, "=");
+			if (!param)
+				goto err;
+
+			param++;
+			debug("\t%s parameter: '%s'\n", configs[pos], param);
+
+			switch (pos) {
+			case 0:
+				pmecc.use_pmecc = strtol(param, NULL, 10);
+				return EXIT_SUCCESS;
+			case 1:
+				pmecc.sector_per_page = strtol(param, NULL, 10);
+				return EXIT_SUCCESS;
+			case 2:
+				pmecc.spare_size = strtol(param, NULL, 10);
+				return EXIT_SUCCESS;
+			case 3:
+				pmecc.ecc_bits = strtol(param, NULL, 10);
+				return EXIT_SUCCESS;
+			case 4:
+				pmecc.sector_size = strtol(param, NULL, 10);
+				return EXIT_SUCCESS;
+			case 5:
+				pmecc.ecc_offset = strtol(param, NULL, 10);
+				return EXIT_SUCCESS;
+			}
+		}
+	}
+
+err:
+	pr_err("Could not find parameter in token '%s'\n", token);
+	return EXIT_FAILURE;
+}
+
+static int atmel_parse_pmecc_params(char *txt)
+{
+	char *token;
+
+	token = strtok(txt, ",");
+	while (token != NULL) {
+		if (atmel_find_pmecc_parameter_in_token(token))
+			return EXIT_FAILURE;
+
+		token = strtok(NULL, ",");
+	}
+
+	return EXIT_SUCCESS;
+}
+
+static int atmel_verify_header(unsigned char *ptr, int image_size,
+			struct image_tool_params *params)
+{
+	uint32_t *ints = (uint32_t *)ptr;
+	size_t pos;
+	size_t size = image_size;
+
+	/* check if we have an PMECC header attached */
+	for (pos = 0; pos < ARRAY_SIZE(nand_pmecc_header); pos++)
+		if (ints[pos] >> 28 != 0xC)
+			break;
+
+	if (pos == ARRAY_SIZE(nand_pmecc_header)) {
+		ints += ARRAY_SIZE(nand_pmecc_header);
+		size -= sizeof(nand_pmecc_header);
+	}
+
+	/* check the seven interrupt vectors of binary */
+	for (pos = 0; pos < 7; pos++) {
+		debug("atmelimage: interrupt vector #%d is 0x%08X\n", pos+1,
+		      ints[pos]);
+		/*
+		 * all vectors except the 6'th one must contain valid
+		 * LDR or B Opcode
+		 */
+		if (pos == 5)
+			/* 6'th vector has image size set, check later */
+			continue;
+		if ((ints[pos] & 0xff000000) == 0xea000000)
+			/* valid B Opcode */
+			continue;
+		if ((ints[pos] & 0xfffff000) == 0xe59ff000)
+			/* valid LDR (I=0, P=1, U=1, B=0, W=0, L=1) */
+			continue;
+		/* ouch, one of the checks has missed ... */
+		return 1;
+	}
+
+	return ints[5] != cpu_to_le32(size);
+}
+
+static void atmel_print_pmecc_header(const uint32_t word)
+{
+	int val;
+
+	printf("\t\tPMECC header\n");
+
+	printf("\t\t====================\n");
+
+	val = (word >> 18) & 0x1ff;
+	printf("\t\teccOffset: %9i\n", val);
+
+	val = (((word >> 16) & 0x3) == 0) ? 512 : 1024;
+	printf("\t\tsectorSize: %8i\n", val);
+
+	if (((word >> 13) & 0x7) <= 2)
+		val = (2 << ((word >> 13) & 0x7));
+	else
+		val = (12 << (((word >> 13) & 0x7) - 3));
+	printf("\t\teccBitReq: %9i\n", val);
+
+	val = (word >> 4) & 0x1ff;
+	printf("\t\tspareSize: %9i\n", val);
+
+	val = (1 << ((word >> 1) & 0x3));
+	printf("\t\tnbSectorPerPage: %3i\n", val);
+
+	printf("\t\tusePmecc: %10i\n", word & 0x1);
+	printf("\t\t====================\n");
+}
+
+static void atmel_print_header(const void *ptr)
+{
+	uint32_t *ints = (uint32_t *)ptr;
+	size_t pos;
+
+	/* check if we have an PMECC header attached */
+	for (pos = 0; pos < ARRAY_SIZE(nand_pmecc_header); pos++)
+		if (ints[pos] >> 28 != 0xC)
+			break;
+
+	if (pos == ARRAY_SIZE(nand_pmecc_header)) {
+		printf("Image Type:\tATMEL ROM-Boot Image with PMECC Header\n");
+		atmel_print_pmecc_header(ints[0]);
+		pos += 5;
+	} else {
+		printf("Image Type:\tATMEL ROM-Boot Image without PMECC Header\n");
+		pos = 5;
+	}
+	printf("\t\t6'th vector has %u set\n", le32_to_cpu(ints[pos]));
+}
+
+static void atmel_set_header(void *ptr, struct stat *sbuf, int ifd,
+				struct image_tool_params *params)
+{
+	/* just save the image size into 6'th interrupt vector */
+	uint32_t *ints = (uint32_t *)ptr;
+	size_t cnt;
+	size_t pos = 5;
+	size_t size = sbuf->st_size;
+
+	for (cnt = 0; cnt < ARRAY_SIZE(nand_pmecc_header); cnt++)
+		if (ints[cnt] >> 28 != 0xC)
+			break;
+
+	if (cnt == ARRAY_SIZE(nand_pmecc_header)) {
+		pos += ARRAY_SIZE(nand_pmecc_header);
+		size -= sizeof(nand_pmecc_header);
+	}
+
+	ints[pos] = cpu_to_le32(size);
+}
+
+static int atmel_check_params(struct image_tool_params *params)
+{
+	if (strlen(params->imagename) > 0)
+		if (atmel_parse_pmecc_params(params->imagename))
+			return EXIT_FAILURE;
+
+	return !(!params->eflag &&
+		!params->fflag &&
+		!params->xflag &&
+		((params->dflag && !params->lflag) ||
+		 (params->lflag && !params->dflag)));
+}
+
+static int atmel_vrec_header(struct image_tool_params *params,
+				struct image_type_params *tparams)
+{
+	uint32_t tmp;
+	size_t pos;
+
+	if (strlen(params->imagename) == 0)
+		return EXIT_SUCCESS;
+
+	tmp = 0xC << 28;
+
+	tmp |= (pmecc.ecc_offset & 0x1ff) << 18;
+
+	switch (pmecc.sector_size) {
+	case 512:
+		tmp |= 0 << 16;
+		break;
+	case 1024:
+		tmp |= 1 << 16;
+		break;
+
+	default:
+		pr_err("Wrong sectorSize (%i) for PMECC header\n",
+		       pmecc.sector_size);
+		return EXIT_FAILURE;
+	}
+
+	switch (pmecc.ecc_bits) {
+	case 2:
+		tmp |= 0 << 13;
+		break;
+	case 4:
+		tmp |= 1 << 13;
+		break;
+	case 8:
+		tmp |= 2 << 13;
+		break;
+	case 12:
+		tmp |= 3 << 13;
+		break;
+	case 24:
+		tmp |= 4 << 13;
+		break;
+
+	default:
+		pr_err("Wrong eccBits (%i) for PMECC header\n",
+		       pmecc.ecc_bits);
+		 return EXIT_FAILURE;
+	}
+
+	tmp |= (pmecc.spare_size & 0x1ff) << 4;
+
+	switch (pmecc.sector_per_page) {
+	case 1:
+		tmp |= 0 << 1;
+		break;
+	case 2:
+		tmp |= 1 << 1;
+		break;
+	case 4:
+		tmp |= 2 << 1;
+		break;
+	case 8:
+		tmp |= 3 << 1;
+		break;
+
+	default:
+		pr_err("Wrong sectorPerPage (%i) for PMECC header\n",
+		       pmecc.sector_per_page);
+		return EXIT_FAILURE;
+	}
+
+	if (pmecc.use_pmecc)
+		tmp |= 1;
+
+	for (pos = 0; pos < ARRAY_SIZE(nand_pmecc_header); pos++)
+		nand_pmecc_header[pos] = tmp;
+
+	debug("PMECC header filled 52 times with 0x%08X\n", tmp);
+
+	tparams->header_size = sizeof(nand_pmecc_header);
+	tparams->hdr = nand_pmecc_header;
+
+	return EXIT_SUCCESS;
+}
+
+static struct image_type_params atmelimage_params = {
+	.name		= "ATMEL ROM-Boot Image support",
+	.header_size	= 0,
+	.hdr		= NULL,
+	.check_image_type = atmel_check_image_type,
+	.verify_header	= atmel_verify_header,
+	.print_header	= atmel_print_header,
+	.set_header	= atmel_set_header,
+	.check_params	= atmel_check_params,
+	.vrec_header	= atmel_vrec_header,
+};
+
+void init_atmel_image_type(void)
+{
+	register_image_type(&atmelimage_params);
+}
diff --git a/tools/imagetool.c b/tools/imagetool.c
index da72115..32d6278 100644
--- a/tools/imagetool.c
+++ b/tools/imagetool.c
@@ -27,6 +27,8 @@ void register_image_tool(imagetool_register_t image_register)
 	 */
 	register_func = image_register;
 
+	/* Init ATMEL ROM Boot Image generation/list support */
+	init_atmel_image_type();
 	/* Init Freescale PBL Boot image generation/list support */
 	init_pbl_image_type();
 	/* Init Kirkwood Boot image generation/list support */
diff --git a/tools/imagetool.h b/tools/imagetool.h
index a3e9d30..c480687 100644
--- a/tools/imagetool.h
+++ b/tools/imagetool.h
@@ -159,6 +159,7 @@ void register_image_type(struct image_type_params *tparams);
  * Supported image types init functions
  */
 void init_default_image_type(void);
+void init_atmel_image_type(void);
 void init_pbl_image_type(void);
 void init_ais_image_type(void);
 void init_kwb_image_type(void);
-- 
1.7.10.4

[U-Boot] [PATCH v3 1/3] mkimage: add atmelimage

[Bo Shen]

Hi Andreas,

On 05/19/2014 08:23 PM, Andreas Bie?mann wrote:
> The new atmelimage converts a machine code BLOB to bootable ROM image. Atmel
> ROM has no sophisticated image format, it only checks the first 7 ARM vectors.
> The vectors can contain valid B or LDR opcodes, the 6'th vector contains the
> image size to load.
>
> Additionally the PMECC header can be written by the atmelimage target. The
> parameters must be given via the -n switch as a coma separated list. For
> example:
>
> mkimage -T atmelimage \
>   -n usePmecc=1,sectorPerPage=4,sectorSize=512,spareSize=64,eccBits=4,eccOffset=36 \
>   -d spl/u-boot-spl.bin boot.bin
>
> A provided image can be checked for correct header setup. It prints out the
> PMECC header parameters if it has one and the 6'th interrupt vector content.
>
> ---8<---
> Image Type:	ATMEL ROM-Boot Image with PMECC Header
> 		PMECC header
> 		====================
> 		eccOffset:        36
> 		sectorSize:      512
> 		eccBitReq:         4
> 		spareSize:        64
> 		nbSectorPerPage:   4
> 		usePmecc:          1
> 		====================
> 		6'th vector has 17044 set
> --->8---
>
> A SPL binary modified with the atmelimage mkimage target was succesfully
> booted on a sama5d34ek via MMC and NAND.
>
> Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
> Cc: Bo Shen <voice.shen@atmel.com>
> Cc: Heiko Schocher <hs@denx.de>

Thanks for your great work.

For the whole patch set:

Tested-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>

> ---
>
> Changes in v3:
> * remove check for 'usePmecc=y'
>
> Changes in v2:
> * do not check filesize in atmelimage
> * add PMECC header generation and printout
> * add printout of 6'th vector
>
>   common/image.c     |    1 +
>   include/image.h    |    1 +
>   tools/Makefile     |    1 +
>   tools/atmelimage.c |  342 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>   tools/imagetool.c  |    2 +
>   tools/imagetool.h  |    1 +
>   6 files changed, 348 insertions(+)
>   create mode 100644 tools/atmelimage.c
>
> diff --git a/common/image.c b/common/image.c
> index fcc5a9c..7cb0bd7 100644
> --- a/common/image.c
> +++ b/common/image.c
> @@ -139,6 +139,7 @@ static const table_entry_t uimage_type[] = {
>   	{	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
>   	{	IH_TYPE_UBLIMAGE,   "ublimage",   "Davinci UBL image",},
>   	{	IH_TYPE_MXSIMAGE,   "mxsimage",   "Freescale MXS Boot Image",},
> +	{	IH_TYPE_ATMELIMAGE, "atmelimage", "ATMEL ROM-Boot Image",},
>   	{	-1,		    "",		  "",			},
>   };
>
> diff --git a/include/image.h b/include/image.h
> index b278778..9c3b9b8 100644
> --- a/include/image.h
> +++ b/include/image.h
> @@ -225,6 +225,7 @@ struct lmb;
>   #define IH_TYPE_PBLIMAGE	15	/* Freescale PBL Boot Image	*/
>   #define IH_TYPE_MXSIMAGE	16	/* Freescale MXSBoot Image	*/
>   #define IH_TYPE_GPIMAGE		17	/* TI Keystone GPHeader Image	*/
> +#define IH_TYPE_ATMELIMAGE	18	/* ATMEL ROM bootable Image	*/
>
>   /*
>    * Compression Types
> diff --git a/tools/Makefile b/tools/Makefile
> index 6e43a01..421ff50 100644
> --- a/tools/Makefile
> +++ b/tools/Makefile
> @@ -69,6 +69,7 @@ RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := rsa-sign.o rsa-verify.o rsa-checksum.o
>
>   # common objs for dumpimage and mkimage
>   dumpimage-mkimage-objs := aisimage.o \
> +			atmelimage.o \
>   			$(FIT_SIG_OBJS-y) \
>   			crc32.o \
>   			default_image.o \
> diff --git a/tools/atmelimage.c b/tools/atmelimage.c
> new file mode 100644
> index 0000000..c8101d2
> --- /dev/null
> +++ b/tools/atmelimage.c
> @@ -0,0 +1,342 @@
> +/*
> + * (C) Copyright 2014
> + * Andreas Bie?mann <andreas.devel@googlemail.com>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#include "imagetool.h"
> +#include "mkimage.h"
> +
> +#include <image.h>
> +
> +#define pr_err(fmt, args...) fprintf(stderr, "atmelimage Error: " fmt, ##args)
> +
> +static int atmel_check_image_type(uint8_t type)
> +{
> +	if (type == IH_TYPE_ATMELIMAGE)
> +		return EXIT_SUCCESS;
> +	else
> +		return EXIT_FAILURE;
> +}
> +
> +static uint32_t nand_pmecc_header[52];
> +
> +/*
> + * A helper struct for parsing the mkimage -n parameter
> + *
> + * Keep in same order as the configs array!
> + */
> +static struct pmecc_config {
> +	int use_pmecc;
> +	int sector_per_page;
> +	int spare_size;
> +	int ecc_bits;
> +	int sector_size;
> +	int ecc_offset;
> +} pmecc;
> +
> +/*
> + * Strings used for configure the PMECC header via -n mkimage switch
> + *
> + * We estimate a coma separated list of key=value pairs. The mkimage -n
> + * parameter argument should not contain any whitespace.
> + *
> + * Keep in same order as struct pmecc_config!
> + */
> +static const char * const configs[] = {
> +	"usePmecc",
> +	"sectorPerPage",
> +	"spareSize",
> +	"eccBits",
> +	"sectorSize",
> +	"eccOffset"
> +};
> +
> +static int atmel_find_pmecc_parameter_in_token(const char *token)
> +{
> +	size_t pos;
> +	char *param;
> +
> +	debug("token: '%s'\n", token);
> +
> +	for (pos = 0; pos < ARRAY_SIZE(configs); pos++) {
> +		if (strncmp(token, configs[pos], strlen(configs[pos])) == 0) {
> +			param = strstr(token, "=");
> +			if (!param)
> +				goto err;
> +
> +			param++;
> +			debug("\t%s parameter: '%s'\n", configs[pos], param);
> +
> +			switch (pos) {
> +			case 0:
> +				pmecc.use_pmecc = strtol(param, NULL, 10);
> +				return EXIT_SUCCESS;
> +			case 1:
> +				pmecc.sector_per_page = strtol(param, NULL, 10);
> +				return EXIT_SUCCESS;
> +			case 2:
> +				pmecc.spare_size = strtol(param, NULL, 10);
> +				return EXIT_SUCCESS;
> +			case 3:
> +				pmecc.ecc_bits = strtol(param, NULL, 10);
> +				return EXIT_SUCCESS;
> +			case 4:
> +				pmecc.sector_size = strtol(param, NULL, 10);
> +				return EXIT_SUCCESS;
> +			case 5:
> +				pmecc.ecc_offset = strtol(param, NULL, 10);
> +				return EXIT_SUCCESS;
> +			}
> +		}
> +	}
> +
> +err:
> +	pr_err("Could not find parameter in token '%s'\n", token);
> +	return EXIT_FAILURE;
> +}
> +
> +static int atmel_parse_pmecc_params(char *txt)
> +{
> +	char *token;
> +
> +	token = strtok(txt, ",");
> +	while (token != NULL) {
> +		if (atmel_find_pmecc_parameter_in_token(token))
> +			return EXIT_FAILURE;
> +
> +		token = strtok(NULL, ",");
> +	}
> +
> +	return EXIT_SUCCESS;
> +}
> +
> +static int atmel_verify_header(unsigned char *ptr, int image_size,
> +			struct image_tool_params *params)
> +{
> +	uint32_t *ints = (uint32_t *)ptr;
> +	size_t pos;
> +	size_t size = image_size;
> +
> +	/* check if we have an PMECC header attached */
> +	for (pos = 0; pos < ARRAY_SIZE(nand_pmecc_header); pos++)
> +		if (ints[pos] >> 28 != 0xC)
> +			break;
> +
> +	if (pos == ARRAY_SIZE(nand_pmecc_header)) {
> +		ints += ARRAY_SIZE(nand_pmecc_header);
> +		size -= sizeof(nand_pmecc_header);
> +	}
> +
> +	/* check the seven interrupt vectors of binary */
> +	for (pos = 0; pos < 7; pos++) {
> +		debug("atmelimage: interrupt vector #%d is 0x%08X\n", pos+1,
> +		      ints[pos]);
> +		/*
> +		 * all vectors except the 6'th one must contain valid
> +		 * LDR or B Opcode
> +		 */
> +		if (pos == 5)
> +			/* 6'th vector has image size set, check later */
> +			continue;
> +		if ((ints[pos] & 0xff000000) == 0xea000000)
> +			/* valid B Opcode */
> +			continue;
> +		if ((ints[pos] & 0xfffff000) == 0xe59ff000)
> +			/* valid LDR (I=0, P=1, U=1, B=0, W=0, L=1) */
> +			continue;
> +		/* ouch, one of the checks has missed ... */
> +		return 1;
> +	}
> +
> +	return ints[5] != cpu_to_le32(size);
> +}
> +
> +static void atmel_print_pmecc_header(const uint32_t word)
> +{
> +	int val;
> +
> +	printf("\t\tPMECC header\n");
> +
> +	printf("\t\t====================\n");
> +
> +	val = (word >> 18) & 0x1ff;
> +	printf("\t\teccOffset: %9i\n", val);
> +
> +	val = (((word >> 16) & 0x3) == 0) ? 512 : 1024;
> +	printf("\t\tsectorSize: %8i\n", val);
> +
> +	if (((word >> 13) & 0x7) <= 2)
> +		val = (2 << ((word >> 13) & 0x7));
> +	else
> +		val = (12 << (((word >> 13) & 0x7) - 3));
> +	printf("\t\teccBitReq: %9i\n", val);
> +
> +	val = (word >> 4) & 0x1ff;
> +	printf("\t\tspareSize: %9i\n", val);
> +
> +	val = (1 << ((word >> 1) & 0x3));
> +	printf("\t\tnbSectorPerPage: %3i\n", val);
> +
> +	printf("\t\tusePmecc: %10i\n", word & 0x1);
> +	printf("\t\t====================\n");
> +}
> +
> +static void atmel_print_header(const void *ptr)
> +{
> +	uint32_t *ints = (uint32_t *)ptr;
> +	size_t pos;
> +
> +	/* check if we have an PMECC header attached */
> +	for (pos = 0; pos < ARRAY_SIZE(nand_pmecc_header); pos++)
> +		if (ints[pos] >> 28 != 0xC)
> +			break;
> +
> +	if (pos == ARRAY_SIZE(nand_pmecc_header)) {
> +		printf("Image Type:\tATMEL ROM-Boot Image with PMECC Header\n");
> +		atmel_print_pmecc_header(ints[0]);
> +		pos += 5;
> +	} else {
> +		printf("Image Type:\tATMEL ROM-Boot Image without PMECC Header\n");
> +		pos = 5;
> +	}
> +	printf("\t\t6'th vector has %u set\n", le32_to_cpu(ints[pos]));
> +}
> +
> +static void atmel_set_header(void *ptr, struct stat *sbuf, int ifd,
> +				struct image_tool_params *params)
> +{
> +	/* just save the image size into 6'th interrupt vector */
> +	uint32_t *ints = (uint32_t *)ptr;
> +	size_t cnt;
> +	size_t pos = 5;
> +	size_t size = sbuf->st_size;
> +
> +	for (cnt = 0; cnt < ARRAY_SIZE(nand_pmecc_header); cnt++)
> +		if (ints[cnt] >> 28 != 0xC)
> +			break;
> +
> +	if (cnt == ARRAY_SIZE(nand_pmecc_header)) {
> +		pos += ARRAY_SIZE(nand_pmecc_header);
> +		size -= sizeof(nand_pmecc_header);
> +	}
> +
> +	ints[pos] = cpu_to_le32(size);
> +}
> +
> +static int atmel_check_params(struct image_tool_params *params)
> +{
> +	if (strlen(params->imagename) > 0)
> +		if (atmel_parse_pmecc_params(params->imagename))
> +			return EXIT_FAILURE;
> +
> +	return !(!params->eflag &&
> +		!params->fflag &&
> +		!params->xflag &&
> +		((params->dflag && !params->lflag) ||
> +		 (params->lflag && !params->dflag)));
> +}
> +
> +static int atmel_vrec_header(struct image_tool_params *params,
> +				struct image_type_params *tparams)
> +{
> +	uint32_t tmp;
> +	size_t pos;
> +
> +	if (strlen(params->imagename) == 0)
> +		return EXIT_SUCCESS;
> +
> +	tmp = 0xC << 28;
> +
> +	tmp |= (pmecc.ecc_offset & 0x1ff) << 18;
> +
> +	switch (pmecc.sector_size) {
> +	case 512:
> +		tmp |= 0 << 16;
> +		break;
> +	case 1024:
> +		tmp |= 1 << 16;
> +		break;
> +
> +	default:
> +		pr_err("Wrong sectorSize (%i) for PMECC header\n",
> +		       pmecc.sector_size);
> +		return EXIT_FAILURE;
> +	}
> +
> +	switch (pmecc.ecc_bits) {
> +	case 2:
> +		tmp |= 0 << 13;
> +		break;
> +	case 4:
> +		tmp |= 1 << 13;
> +		break;
> +	case 8:
> +		tmp |= 2 << 13;
> +		break;
> +	case 12:
> +		tmp |= 3 << 13;
> +		break;
> +	case 24:
> +		tmp |= 4 << 13;
> +		break;
> +
> +	default:
> +		pr_err("Wrong eccBits (%i) for PMECC header\n",
> +		       pmecc.ecc_bits);
> +		 return EXIT_FAILURE;
> +	}
> +
> +	tmp |= (pmecc.spare_size & 0x1ff) << 4;
> +
> +	switch (pmecc.sector_per_page) {
> +	case 1:
> +		tmp |= 0 << 1;
> +		break;
> +	case 2:
> +		tmp |= 1 << 1;
> +		break;
> +	case 4:
> +		tmp |= 2 << 1;
> +		break;
> +	case 8:
> +		tmp |= 3 << 1;
> +		break;
> +
> +	default:
> +		pr_err("Wrong sectorPerPage (%i) for PMECC header\n",
> +		       pmecc.sector_per_page);
> +		return EXIT_FAILURE;
> +	}
> +
> +	if (pmecc.use_pmecc)
> +		tmp |= 1;
> +
> +	for (pos = 0; pos < ARRAY_SIZE(nand_pmecc_header); pos++)
> +		nand_pmecc_header[pos] = tmp;
> +
> +	debug("PMECC header filled 52 times with 0x%08X\n", tmp);
> +
> +	tparams->header_size = sizeof(nand_pmecc_header);
> +	tparams->hdr = nand_pmecc_header;
> +
> +	return EXIT_SUCCESS;
> +}
> +
> +static struct image_type_params atmelimage_params = {
> +	.name		= "ATMEL ROM-Boot Image support",
> +	.header_size	= 0,
> +	.hdr		= NULL,
> +	.check_image_type = atmel_check_image_type,
> +	.verify_header	= atmel_verify_header,
> +	.print_header	= atmel_print_header,
> +	.set_header	= atmel_set_header,
> +	.check_params	= atmel_check_params,
> +	.vrec_header	= atmel_vrec_header,
> +};
> +
> +void init_atmel_image_type(void)
> +{
> +	register_image_type(&atmelimage_params);
> +}
> diff --git a/tools/imagetool.c b/tools/imagetool.c
> index da72115..32d6278 100644
> --- a/tools/imagetool.c
> +++ b/tools/imagetool.c
> @@ -27,6 +27,8 @@ void register_image_tool(imagetool_register_t image_register)
>   	 */
>   	register_func = image_register;
>
> +	/* Init ATMEL ROM Boot Image generation/list support */
> +	init_atmel_image_type();
>   	/* Init Freescale PBL Boot image generation/list support */
>   	init_pbl_image_type();
>   	/* Init Kirkwood Boot image generation/list support */
> diff --git a/tools/imagetool.h b/tools/imagetool.h
> index a3e9d30..c480687 100644
> --- a/tools/imagetool.h
> +++ b/tools/imagetool.h
> @@ -159,6 +159,7 @@ void register_image_type(struct image_type_params *tparams);
>    * Supported image types init functions
>    */
>   void init_default_image_type(void);
> +void init_atmel_image_type(void);
>   void init_pbl_image_type(void);
>   void init_ais_image_type(void);
>   void init_kwb_image_type(void);
>

[U-Boot] [U-Boot,v3,1/3] mkimage: add atmelimage

[Andreas Bießmann]

Dear Andreas Bie?mann,

Andreas Bie?mann <andreas.devel@googlemail.com> writes:
>The new atmelimage converts a machine code BLOB to bootable ROM image. Atmel
>ROM has no sophisticated image format, it only checks the first 7 ARM vectors.
>The vectors can contain valid B or LDR opcodes, the 6'th vector contains the
>image size to load.
>
>Additionally the PMECC header can be written by the atmelimage target. The
>parameters must be given via the -n switch as a coma separated list. For
>example:
>
>mkimage -T atmelimage \
> -n usePmecc=1,sectorPerPage=4,sectorSize=512,spareSize=64,eccBits=4,eccOffset=36 \
> -d spl/u-boot-spl.bin boot.bin
>
>A provided image can be checked for correct header setup. It prints out the
>PMECC header parameters if it has one and the 6'th interrupt vector content.
>
>---8<---
>Image Type:	ATMEL ROM-Boot Image with PMECC Header
>		PMECC header
>		====================
>		eccOffset:        36
>		sectorSize:      512
>		eccBitReq:         4
>		spareSize:        64
>		nbSectorPerPage:   4
>		usePmecc:          1
>		====================
>		6'th vector has 17044 set
>--->8---
>
>A SPL binary modified with the atmelimage mkimage target was succesfully
>booted on a sama5d34ek via MMC and NAND.
>
>Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
>Cc: Bo Shen <voice.shen@atmel.com>
>Cc: Heiko Schocher <hs@denx.de>
>Tested-by: Bo Shen <voice.shen@atmel.com>
>Acked-by: Bo Shen <voice.shen@atmel.com>
>
>---
>Changes in v3:
>* remove check for 'usePmecc=y'
>
>Changes in v2:
>* do not check filesize in atmelimage
>* add PMECC header generation and printout
>* add printout of 6'th vector
>
> common/image.c     |    1 +
> include/image.h    |    1 +
> tools/Makefile     |    1 +
> tools/atmelimage.c |  342 ++++++++++++++++++++++++++++++++++++++++++++++++++++
> tools/imagetool.c  |    2 +
> tools/imagetool.h  |    1 +
> 6 files changed, 348 insertions(+)
> create mode 100644 tools/atmelimage.c

applied to u-boot-atmel/master, thanks!

Best regards,
Andreas Bie?mann

[U-Boot] [PATCH v3 2/3] arm:at91: enable ROM loadable atmel image

[Andreas Bießmann]

For sama5d3xek we need to modify the SPL image for correct detection by ROM
code.

Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
---

Changes in v3:
* add atmel_pmecc_params host tool, it generates an appropriate string for
  mkimage -n switch with compiled in values also used in atmel_nand driver

Changes in v2:
* add -n switch to mkimage for PMECC type NAND and CONFIG_SYS_NANDFLASH

 arch/arm/cpu/armv7/at91/config.mk |   10 ++++++++
 doc/README.atmel_pmecc            |   21 +++++++++++++++
 spl/Makefile                      |   11 ++++++++
 tools/Makefile                    |    2 ++
 tools/atmel_pmecc_params.c        |   51 +++++++++++++++++++++++++++++++++++++
 5 files changed, 95 insertions(+)
 create mode 100644 arch/arm/cpu/armv7/at91/config.mk
 create mode 100644 tools/atmel_pmecc_params.c

diff --git a/arch/arm/cpu/armv7/at91/config.mk b/arch/arm/cpu/armv7/at91/config.mk
new file mode 100644
index 0000000..09eab70
--- /dev/null
+++ b/arch/arm/cpu/armv7/at91/config.mk
@@ -0,0 +1,10 @@
+#
+# Copyright (C) 2014, Andreas Bie?mann <andreas.devel@googlemail.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+ifdef CONFIG_SPL_BUILD
+ALL-y	+= boot.bin
+else
+ALL-y	+= u-boot.img
+endif
diff --git a/doc/README.atmel_pmecc b/doc/README.atmel_pmecc
index cf8373b..cc0f73d 100644
--- a/doc/README.atmel_pmecc
+++ b/doc/README.atmel_pmecc
@@ -27,3 +27,24 @@ Take AT91SAM9X5EK as an example, the board definition file likes:
 #define CONFIG_ATMEL_NAND_HW_PMECC	1
 #define CONFIG_PMECC_CAP		2
 #define CONFIG_PMECC_SECTOR_SIZE	512
+
+How to enable PMECC header for direct programmable boot.bin
+-----------------------------------------------------------
+2014-05-19 Andreas Bie?mann <andreas.devel@googlemail.com>
+
+The usual way to program SPL into NAND flash is to use the SAM-BA Atmel tool.
+This however is often not usable when doing field updates. To be able to
+program a SPL binary into NAND flash we need to add the PMECC header to the
+binary before. Chapter '12.4.4.1 NAND Flash Boot: NAND Flash Detection' in
+sama5d3 SoC spec (as of 03. April 2014) defines how this PMECC header has to
+look like. In order to do so we have a new image type added to mkimage to
+generate this PMECC header and integrated this into the build process of SPL.
+
+To enable the generation of atmel PMECC header for SPL one need to define
+CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER. The required parameters are taken from
+board configuration and compiled into the host tools atmel_pmecc_params. This
+tool will be called in build process to parametrize mkimage for atmelimage
+type. The mkimage tool has intentionally _not_ compiled in those parameters.
+
+The mkimage image type atmelimage also set the 6'th interrupt vector to the
+correct value. This feature can also be used to setup a boot.bin for MMC boot.
diff --git a/spl/Makefile b/spl/Makefile
index 55500fd..402b1c6 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -183,6 +183,17 @@ MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
 	$(call if_changed,mkimage)
 
+MKIMAGEFLAGS_boot.bin = -T atmelimage
+
+ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
+MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
+
+boot.bin: $(obj)/../tools/atmel_pmecc_params
+endif
+
+boot.bin: $(obj)/u-boot-spl.bin
+	$(call if_changed,mkimage)
+
 ALL-y	+= $(obj)/$(SPL_BIN).bin
 
 ifdef CONFIG_SAMSUNG
diff --git a/tools/Makefile b/tools/Makefile
index 421ff50..62bdd84 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -38,6 +38,8 @@ ENVCRC-$(CONFIG_ENV_IS_IN_NVRAM) = y
 ENVCRC-$(CONFIG_ENV_IS_IN_SPI_FLASH) = y
 CONFIG_BUILD_ENVCRC ?= $(ENVCRC-y)
 
+hostprogs-$(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER) += atmel_pmecc_params$(SFX)
+
 # TODO: CONFIG_CMD_LICENSE does not work
 hostprogs-$(CONFIG_CMD_LICENSE) += bin2header$(SFX)
 hostprogs-$(CONFIG_LCD_LOGO) += bmp_logo$(SFX)
diff --git a/tools/atmel_pmecc_params.c b/tools/atmel_pmecc_params.c
new file mode 100644
index 0000000..8eaf27f
--- /dev/null
+++ b/tools/atmel_pmecc_params.c
@@ -0,0 +1,51 @@
+/*
+ * (C) Copyright 2014 Andreas Bie?mann <andreas.devel@googlemail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * This is a host tool for generating an appropriate string out of board
+ * configuration. The string is required for correct generation of PMECC
+ * header which in turn is required for NAND flash booting of Atmel AT91 style
+ * hardware.
+ *
+ * See doc/README.atmel_pmecc for more information.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+
+static int pmecc_get_ecc_bytes(int cap, int sector_size)
+{
+	int m = 12 + sector_size / 512;
+	return (m * cap + 7) / 8;
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned int use_pmecc = 0;
+	unsigned int sector_per_page;
+	unsigned int sector_size = CONFIG_PMECC_SECTOR_SIZE;
+	unsigned int oob_size = CONFIG_SYS_NAND_OOBSIZE;
+	unsigned int ecc_bits = CONFIG_PMECC_CAP;
+	unsigned int ecc_offset;
+
+#ifdef CONFIG_ATMEL_NAND_HW_PMECC
+	use_pmecc = 1;
+#endif
+
+	sector_per_page = CONFIG_SYS_NAND_PAGE_SIZE / CONFIG_PMECC_SECTOR_SIZE;
+	ecc_offset = oob_size -
+		pmecc_get_ecc_bytes(ecc_bits, sector_size) * sector_per_page;
+
+	printf("usePmecc=%d,", use_pmecc);
+	printf("sectorPerPage=%d,", sector_per_page);
+	printf("sectorSize=%d,", sector_size);
+	printf("spareSize=%d,", oob_size);
+	printf("eccBits=%d,", ecc_bits);
+	printf("eccOffset=%d", ecc_offset);
+	printf("\n");
+
+	exit(EXIT_SUCCESS);
+}
-- 
1.7.10.4

[U-Boot] [U-Boot,v3,2/3] arm:at91: enable ROM loadable atmel image

[Andreas Bießmann]

Dear Andreas Bie?mann,

Andreas Bie?mann <andreas.devel@googlemail.com> writes:
>For sama5d3xek we need to modify the SPL image for correct detection by ROM
>code.
>
>Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
>Tested-by: Bo Shen <voice.shen@atmel.com>
>
>---
>Changes in v3:
>* add atmel_pmecc_params host tool, it generates an appropriate string for
>  mkimage -n switch with compiled in values also used in atmel_nand driver
>
>Changes in v2:
>* add -n switch to mkimage for PMECC type NAND and CONFIG_SYS_NANDFLASH
>
> arch/arm/cpu/armv7/at91/config.mk |   10 ++++++++
> doc/README.atmel_pmecc            |   21 +++++++++++++++
> spl/Makefile                      |   11 ++++++++
> tools/Makefile                    |    2 ++
> tools/atmel_pmecc_params.c        |   51 +++++++++++++++++++++++++++++++++++++
> 5 files changed, 95 insertions(+)
> create mode 100644 arch/arm/cpu/armv7/at91/config.mk
> create mode 100644 tools/atmel_pmecc_params.c

applied to u-boot-atmel/master, thanks!

Best regards,
Andreas Bie?mann

[U-Boot] [PATCH v3 3/3] sama5d3xek: enable PMECC header generation

[Andreas Bießmann]

Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
Cc: Bo Shen <voice.shen@atmel.com>
---

Changes in v3:
* use CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER

Changes in v2: None

 include/configs/sama5d3xek.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/include/configs/sama5d3xek.h b/include/configs/sama5d3xek.h
index 516be85..5caa96b 100644
--- a/include/configs/sama5d3xek.h
+++ b/include/configs/sama5d3xek.h
@@ -281,6 +281,7 @@
 #define CONFIG_SYS_NAND_OOBSIZE		64
 #define CONFIG_SYS_NAND_BLOCK_SIZE	0x20000
 #define CONFIG_SYS_NAND_BAD_BLOCK_POS	0x0
+#define CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER
 
 #elif CONFIG_SYS_USE_SERIALFLASH
 #define CONFIG_SPL_SPI_SUPPORT
-- 
1.7.10.4

[U-Boot] [U-Boot,v3,3/3] sama5d3xek: enable PMECC header generation

[Andreas Bießmann]

Dear Andreas Bie?mann,

Andreas Bie?mann <andreas.devel@googlemail.com> writes:
>Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
>Cc: Bo Shen <voice.shen@atmel.com>
>Tested-by: Bo Shen <voice.shen@atmel.com>
>---
>Changes in v3:
>* use CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER
>
>Changes in v2: None
>
> include/configs/sama5d3xek.h |    1 +
> 1 file changed, 1 insertion(+)

applied to u-boot-atmel/master, thanks!

Best regards,
Andreas Bie?mann