[U-Boot-Users] qe: add ability to upload QE firmware

Timur Tabi timur at freescale.com
Fri Nov 30 22:20:43 CET 2007


Define the layout of a binary blob that contains a QE firmware and instructions
on how to upload it.  Add function qe_upload_firmware() to parse the blob
and perform the actual upload.  Add command-line command "qe fw" to take a
firmware blob in memory and upload it.  Fully define 'struct rsp' in
immap_qe.h to include the actual RISC Special Registers.

Signed-off-by: Timur Tabi <timur at freescale.com>
---

This patch applies to Kim's mpc83xx branch on u-boot-mpc83xx.git at denx.de.

 doc/README.qe_firmware     |  295 ++++++++++++++++++++++++++++++++++++++++++++
 drivers/qe/qe.c            |  213 ++++++++++++++++++++++++++++++++
 drivers/qe/qe.h            |   56 +++++++++
 include/asm-ppc/immap_qe.h |   35 +++++-
 4 files changed, 596 insertions(+), 3 deletions(-)
 create mode 100644 doc/README.qe_firmware

diff --git a/doc/README.qe_firmware b/doc/README.qe_firmware
new file mode 100644
index 0000000..8962664
--- /dev/null
+++ b/doc/README.qe_firmware
@@ -0,0 +1,295 @@
+	   Freescale QUICC Engine Firmware Uploading
+	   -----------------------------------------
+
+(c) 2007 Timur Tabi <timur at freescale.com>,
+    Freescale Semiconductor
+
+Table of Contents
+=================
+
+  I - Software License for Firmware
+
+  II - Microcode Availability
+
+  III - Description and Terminology
+
+  IV - Microcode Programming Details
+
+  V - Firmware Structure Layout
+
+  VI - Sample Code for Creating Firmware Files
+
+Revision Information
+====================
+
+November 30, 2007: Rev 1.0 - Initial version
+
+I - Software License for Firmware
+=================================
+
+Each firmware file comes with its own software license.  For information on
+the particular license, please see the license text that is distributed with
+the firmware.
+
+II - Microcode Availability
+===========================
+
+Firmware files are distributed through various channels.  Some are available on
+http://opensource.freescale.com.  For other firmware files, please contact
+your Freescale representative or your operating system vendor.
+
+III - Description and Terminology
+================================
+
+In this document, the term 'microcode' refers to the sequence of 32-bit
+integers that compose the actual QE microcode.
+
+The term 'firmware' refers to a binary blob that contains the microcode as
+well as other data that
+
+	1) describes the microcode's purpose
+	2) describes how and where to upload the microcode
+	3) specifies the values of various registers
+	4) includes additional data for use by specific device drivers
+
+Firmware files are binary files that contain only a firmware.
+
+IV - Microcode Programming Details
+===================================
+
+The QE architecture allows for only one microcode present in I-RAM for each
+RISC processor.  To replace any current microcode, a full QE reset (which
+disables the microcode) must be performed first.
+
+QE microcode is uploaded using the following procedure:
+
+1) The microcode is placed into I-RAM at a specific location, using the
+   IRAM.IADD and IRAM.IDATA registers.
+
+2) The CERCR.CIR bit is set to 0 or 1, depending on whether the firmware
+   needs split I-RAM.  Split I-RAM is only meaningful for SOCs that have
+   QEs with multiple RISC processors, such as the 8360.  Splitting the I-RAM
+   allows each processor to run a different microcode, effectively creating an
+   asymmetric multiprocessing (AMP) system.
+
+3) The TIBCR trap registers are loaded with the addresses of the trap handlers
+   in the microcode.
+
+4) The RSP.ECCR register is programmed with the value provided.
+
+5) If necessary, device drivers that need the virtual traps and extended mode
+   data will use them.
+
+Virtual Microcode Traps
+
+These virtual traps are conditional branches in the microcode.  These are
+"soft" provisional introduced in the ROMcode in order to enable higher
+flexibility and save h/w traps If new features are activated or an issue is
+being fixed in the RAM package utilizing they should be activated.  This data
+structure signals the microcode which of these virtual traps is active.
+
+This structure contains 6 words that the application should copy to some
+specific been defined.  This table describes the structure.
+
+	---------------------------------------------------------------
+	| Offset in |                  | Destination Offset | Size of |
+	|   array   |     Protocol     |   within PRAM      | Operand |
+	--------------------------------------------------------------|
+	|     0     | Ethernet         |      0xF8          | 4 bytes |
+	|           | interworking     |                    |         |
+	---------------------------------------------------------------
+	|     4     | ATM              |      0xF8          | 4 bytes |
+	|           | interworking     |                    |         |
+	---------------------------------------------------------------
+	|     8     | PPP              |      0xF8          | 4 bytes |
+	|           | interworking     |                    |         |
+	---------------------------------------------------------------
+	|     12    | Ethernet RX      |      0x22          | 1 byte  |
+	|           | Distributor Page |                    |         |
+	---------------------------------------------------------------
+	|     16    | ATM Globtal      |      0x28          | 1 byte  |
+	|           | Params Table     |                    |         |
+	---------------------------------------------------------------
+	|     20    | Insert Frame     |      0xF8          | 4 bytes |
+	---------------------------------------------------------------
+
+
+Extended Modes
+
+This is a double word bit array (64 bits) that defines special functionality
+which has an impact on the softwarew drivers.  Each bit has its own impact
+and has special instructions for the s/w associated with it.  This structure is
+described in this table:
+
+	-----------------------------------------------------------------------
+	| Bit #  |     Name     |   Description                               |
+	-----------------------------------------------------------------------
+	|   0    | General      | Indicates that prior to each host command   |
+	|        | push command | given by the application, the software must |
+	|        |              | assert a special host command (push command)|
+	|        |              | CECDR = 0x00800000.                         |
+	|        |              | CECR = 0x01c1000f.                          |
+	-----------------------------------------------------------------------
+	|   1    | UCC ATM      | Indicates that after issuing ATM RX INIT    |
+	|        | RX INIT      | command, the host must issue another special|
+	|        | push command | command (push command) and immediately      |
+	|        |              | following that re-issue the ATM RX INIT     |
+	|        |              | command. (This makes the sequence of        |
+	|        |              | initializing the ATM receiver a sequence of |
+	|        |              | three host commands)                        |
+	|        |              | CECDR = 0x00800000.                         |
+	|        |              | CECR = 0x01c1000f.                          |
+	-----------------------------------------------------------------------
+	|   2    | Add/remove   | Indicates that following the specific host  |
+	|        | command      | command: "Add/Remove entry in Hash Lookup   |
+	|        | validation   | Table" used in Interworking setup, the user |
+	|        |              | must issue another command.                 |
+	|        |              | CECDR = 0xce000003.                         |
+	|        |              | CECR = 0x01c10f58.                          |
+	-----------------------------------------------------------------------
+	|   3    | General push | Indicates that the s/w has to initialize    |
+	|        | command      | some pointers in the Ethernet thread pages  |
+	|        |              | which are used when Header Compression is   |
+	|        |              | activated.  The full details of these       |
+	|        |              | pointers is located in the software drivers.|
+	-----------------------------------------------------------------------
+	|   4    | General push | Indicates that after issuing Ethernet TX    |
+	|        | command      | INIT command, user must issue this command  |
+	|        |              | for each SNUM of Ethernet TX thread.        |
+	|        |              | CECDR = 0x00800003.                         |
+	|        |              | CECR = 0x7'b{0}, 8'b{Enet TX thread SNUM},  |
+	|        |              |        1'b{1}, 12'b{0}, 4'b{1}              |
+	-----------------------------------------------------------------------
+	| 5 - 31 |     N/A      | Reserved, set to zero.                      |
+	-----------------------------------------------------------------------
+
+V - Firmware Structure Layout
+==============================
+
+QE microcode from Freescale is typically provided as a header file.  This
+header file contains macros that define the microcode binary itself as well as
+some other data used in uploading that microcode.  The format of these files
+do not lend themselves to simple inclusion into other code.  Hence,
+the need for a more portable format.  This section defines that format.
+
+Instead of distributing a header file, the microcode and related data are
+embedded into a binary blob.  This blob is passed to the qe_upload_firmware()
+function, which parses the blob and performs everything necessary to upload
+the microcode.
+
+All integers are big-endian.  See the comments for function
+qe_upload_firmware() for up-to-date implementation information.
+
+This structure supports versioning, where the version of the structure is
+embedded into the structure itself.  To ensure forward and backwards
+compatibility, all versions of the structure must use the same 'qe_header'
+structure at the beginning.
+
+'header' (type: struct qe_header):
+	The 'length' field is the size, in bytes, of the entire structure,
+	including all the microcode embedded in it, as well as the CRC (if
+	present).
+
+	The 'magic' field is an array of three bytes that contains the letters
+	'Q', 'E', and 'F'.  This is an identifier that indicates that this
+	structure is a QE Firmware structure.
+
+	The 'version' field is a single byte that indicates the version of this
+	structure.  If the layout of the structure should ever need to be
+	changed to add support for additional types of microcode, then the
+	version number should also be changed.
+
+The 'id' field is a null-terminated string(suitable for printing) that
+identifies the firmware.
+
+The 'count' field indicates the number of 'microcode' structures.  There
+must be one and only one 'microcode' structure for each RISC processor.
+Therefore, this field also represents the number of RISC processors for this
+SOC.
+
+The 'soc' structure contains the SOC numbers and revisions used to match
+the microcode to the SOC itself.  Normally, the microcode loader should
+check the data in this structure with the SOC number and revisions, and
+only upload the microcode if there's a match.  However, this check is not
+made on all platforms.
+
+Although it is not recommended, you can specify '0' in the soc.model
+field to skip matching SOCs altogether.
+
+The 'model' field is a 16-bit number that matches the actual SOC. The
+'major' and 'minor' fields are the major and minor revision numbrs,
+respectively, of the SOC.
+
+For example, to match the 8323, revision 1.0:
+     soc.model = 8323
+     soc.major = 1
+     soc.minor = 0
+
+'padding' is neccessary for structure alignment.  This field ensures that the
+'extended_modes' field is aligned on a 64-bit boundary.
+
+'extended_modes' is a bitfield that defines special functionality which has an
+impact on the device drivers.  Each bit has its own impact and has special
+instructions for the driver associated with it.  This field is stored in
+the QE library and available to any driver that calles qe_get_firmware_info().
+
+'vtraps' is an array of 8 words that contain virtual trap values for each
+virtual traps.  As with 'extended_modes', this field is stored in the QE
+library and available to any driver that calles qe_get_firmware_info().
+
+'microcode' (type: struct qe_microcode):
+	For each RISC processor there is one 'microcode' structure.  The first
+	'microcode' structure is for the first RISC, and so on.
+
+	The 'id' field is a null-terminated string suitable for printing that
+	identifies this particular microcode.
+
+	'traps' is an array of 16 words that contain hardware trap values
+	for each of the 16 traps.  If trap[i] is 0, then this particular
+	trap is to be ignored (i.e. not written to TIBCR[i]).  The entire value
+	is written as-is to the TIBCR[i] register, so be sure to set the EN
+	and T_IBP bits if necessary.
+
+	'eccr' is the value to program into the ECCR register.
+
+	'iram_offset' is the offset into IRAM to start writing the
+	microcode.
+
+	'count' is the number of 32-bit words in the microcode.
+
+	'code_offset' is the offset, in bytes, from the beginning of this
+	structure where the microcode itself can be found.  The first
+	microcode binary should be located immediately after the 'microcode'
+	array.
+
+	'major', 'minor', and 'revision' are the major, minor, and revision
+	version numbers, respectively, of the microcode.  If all values are 0,
+	then these fields are ignored.
+
+	'reserved' is necessary for structure alignment.  Since 'microcode'
+	is an array, the 64-bit 'extended_modes' field needs to be aligned
+	on a 64-bit boundary, and this can only happen if the size of
+	'microcode' is a multiple of 8 bytes.  To ensure that, we add
+	'reserved'.
+
+After the last microcode is a 32-bit CRC.  It can be calculated using
+this algorithm:
+
+u32 crc32(const u8 *p, unsigned int len)
+{
+	unsigned int i;
+	u32 crc = 0;
+
+	while (len--) {
+	   crc ^= *p++;
+	   for (i = 0; i < 8; i++)
+		   crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);
+	}
+	return crc;
+}
+
+VI - Sample Code for Creating Firmware Files
+============================================
+
+A Python program that creates firmware binaries from the header files normally
+distributed by Freescale can be found on http://opensource.freescale.com.
diff --git a/drivers/qe/qe.c b/drivers/qe/qe.c
index 7559e92..04e81f9 100644
--- a/drivers/qe/qe.c
+++ b/drivers/qe/qe.c
@@ -21,6 +21,7 @@
  */
 
 #include "common.h"
+#include <command.h>
 #include "asm/errno.h"
 #include "asm/io.h"
 #include "asm/immap_qe.h"
@@ -248,4 +249,216 @@ int qe_set_mii_clk_src(int ucc_num)
 	return 0;
 }
 
+/* The maximum number of RISCs we support */
+#define MAX_QE_RISC     2
+
+/* Firmware information stored here for qe_get_firmware_info() */
+static struct qe_firmware_info qe_firmware_info;
+
+/*
+ * Upload a QE microcode
+ *
+ * This function is a worker function for qe_upload_firmware().  It does
+ * the actual uploading of the microcode.
+ */
+static void qe_upload_microcode(const void *base,
+	const struct qe_microcode *ucode)
+{
+	const u32 *code = base + be32_to_cpu(ucode->code_offset);
+	unsigned int i;
+
+	if (ucode->major || ucode->minor || ucode->revision)
+		printf("QE: uploading microcode '%s' version %u.%u.%u\n",
+			ucode->id, ucode->major, ucode->minor, ucode->revision);
+	else
+		printf("QE: uploading microcode '%s'\n", ucode->id);
+
+	/* Use auto-increment */
+	out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) |
+		QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR);
+
+	for (i = 0; i < be32_to_cpu(ucode->count); i++)
+		out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i]));
+}
+
+/*
+ * Upload a microcode to the I-RAM at a specific address.
+ *
+ * See Documentation/powerpc/qe-firmware.txt for information on QE microcode
+ * uploading.
+ *
+ * Currently, only version 1 is supported, so the 'version' field must be
+ * set to 1.
+ *
+ * The SOC model and revision are not validated, they are only displayed for
+ * informational purposes.
+ *
+ * 'calc_size' is the calculated size, in bytes, of the firmware structure and
+ * all of the microcode structures, minus the CRC.
+ *
+ * 'length' is the size that the structure says it is, including the CRC.
+ */
+int qe_upload_firmware(const struct qe_firmware *firmware)
+{
+	unsigned int i;
+	unsigned int j;
+	u32 crc;
+	size_t calc_size = sizeof(struct qe_firmware);
+	size_t length;
+	const struct qe_header *hdr;
+
+	if (!firmware) {
+		printf("Invalid address\n");
+		return -EINVAL;
+	}
+
+	hdr = &firmware->header;
+	length = be32_to_cpu(hdr->length);
+
+	/* Check the magic */
+	if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
+	    (hdr->magic[2] != 'F')) {
+		printf("Not a microcode\n");
+		return -EPERM;
+	}
+
+	/* Check the version */
+	if (hdr->version != 1) {
+		printf("Unsupported version\n");
+		return -EPERM;
+	}
+
+	/* Validate some of the fields */
+	if ((firmware->count < 1) || (firmware->count >= MAX_QE_RISC)) {
+		printf("Invalid data\n");
+		return -EINVAL;
+	}
+
+	/* Validate the length and check if there's a CRC */
+	calc_size += (firmware->count - 1) * sizeof(struct qe_microcode);
+
+	for (i = 0; i < firmware->count; i++)
+		/*
+		 * For situations where the second RISC uses the same microcode
+		 * as the first, the 'code_offset' and 'count' fields will be
+		 * zero, so it's okay to add those.
+		 */
+		calc_size += sizeof(u32) *
+			be32_to_cpu(firmware->microcode[i].count);
+
+	/* Validate the length */
+	if (length != calc_size + sizeof(u32)) {
+		printf("Invalid length\n");
+		return -EPERM;
+	}
+
+        /*
+         * Validate the CRC.  We would normally call crc32_no_comp(), but that
+         * function isn't available unless you turn on JFFS support.
+         */
+	crc = be32_to_cpu(*(u32 *)((void *)firmware + calc_size));
+	if (crc != (crc32(-1, (const void *) firmware, calc_size) ^ -1)) {
+		printf("Firmware CRC is invalid\n");
+		return -EIO;
+	}
+
+	/*
+	 * If the microcode calls for it, split the I-RAM.
+	 */
+	if (!firmware->split) {
+		out_be16(&qe_immr->cp.cercr,
+			in_be16(&qe_immr->cp.cercr) | QE_CP_CERCR_CIR);
+	}
+
+	if (firmware->soc.model)
+		printf("Firmware '%s' for %u V%u.%u\n",
+			firmware->id, be16_to_cpu(firmware->soc.model),
+			firmware->soc.major, firmware->soc.minor);
+	else
+		printf("Firmware '%s'\n", firmware->id);
+
+	/*
+	 * The QE only supports one microcode per RISC, so clear out all the
+	 * saved microcode information and put in the new.
+	 */
+	memset(&qe_firmware_info, 0, sizeof(qe_firmware_info));
+	strcpy(qe_firmware_info.id, firmware->id);
+	qe_firmware_info.extended_modes = firmware->extended_modes;
+	memcpy(qe_firmware_info.vtraps, firmware->vtraps,
+		sizeof(firmware->vtraps));
+
+	/* Loop through each microcode. */
+	for (i = 0; i < firmware->count; i++) {
+		const struct qe_microcode *ucode = &firmware->microcode[i];
+
+		/* Upload a microcode if it's present */
+		if (ucode->code_offset)
+			qe_upload_microcode(firmware, ucode);
+
+		/* Program the traps for this processor */
+		for (j = 0; j < 16; j++) {
+			u32 trap = be32_to_cpu(ucode->traps[j]);
+
+			if (trap)
+				out_be32(&qe_immr->rsp[i].tibcr[j], trap);
+		}
+
+		/* Enable traps */
+		out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr));
+	}
+
+	return 0;
+}
+
+struct qe_firmware_info *qe_get_firmware_info(void)
+{
+	return &qe_firmware_info;
+}
+
+static int qe_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	ulong addr;
+
+	if (argc < 3) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	if (strcmp(argv[1], "fw") == 0) {
+		addr = simple_strtoul(argv[2], NULL, 16);
+
+		if (!addr) {
+			printf("Invalid address\n");
+			return -EINVAL;
+		}
+
+                /*
+                 * If a length was supplied, compare that with the 'length'
+                 * field.
+                 */
+
+		if (argc >= 3) {
+			ulong length = simple_strtoul(argv[3], NULL, 16);
+			struct qe_firmware *firmware = (void *) addr;
+
+			if (length != be32_to_cpu(firmware->header.length)) {
+				printf("Invalid length\n");
+				return -EINVAL;
+			}
+		}
+
+		return qe_upload_firmware((const struct qe_firmware *) addr);
+	}
+
+	printf ("Usage:\n%s\n", cmdtp->usage);
+	return 1;
+}
+
+U_BOOT_CMD(
+	qe, 4, 0, qe_cmd,
+	"qe      - QUICC Engine commands\n",
+	"fw <addr> [<length>] - Upload firmware at address <addr>,\n"
+		"with optional length <length>\n"
+	);
+
 #endif /* CONFIG_QE */
diff --git a/drivers/qe/qe.h b/drivers/qe/qe.h
index 400b1a6..4c96c67 100644
--- a/drivers/qe/qe.h
+++ b/drivers/qe/qe.h
@@ -222,6 +222,60 @@ typedef enum qe_clock {
 
 #define QE_SDEBCR_BA_MASK		0x01FFFFFF
 
+/* Communication Processor */
+#define QE_CP_CERCR_MEE		0x8000	/* Multi-user RAM ECC enable */
+#define QE_CP_CERCR_IEE		0x4000	/* Instruction RAM ECC enable */
+#define QE_CP_CERCR_CIR		0x0800	/* Common instruction RAM */
+
+/* I-RAM */
+#define QE_IRAM_IADD_AIE	0x80000000	/* Auto Increment Enable */
+#define QE_IRAM_IADD_BADDR	0x00080000	/* Base Address */
+
+/* Structure that defines QE firmware binary files.
+ *
+ * See doc/README.qe_firmware for a description of these fields.
+ */
+struct qe_firmware {
+	struct qe_header {
+		u32 length;  /* Length of the entire structure, in bytes */
+		u8 magic[3];    /* Set to { 'Q', 'E', 'F' } */
+		u8 version;     /* Version of this layout. First ver is '1' */
+	} header;
+	u8 id[62];      /* Null-terminated identifier string */
+	u8 split;	/* 0 = shared I-RAM, 1 = split I-RAM */
+	u8 count;       /* Number of microcode[] structures */
+	struct {
+		u16 model;   	/* The SOC model  */
+		u8 major;       	/* The SOC revision major */
+		u8 minor;       	/* The SOC revision minor */
+	} __attribute__ ((packed)) soc;
+	u8 padding[4];			/* Reserved, for alignment */
+	u64 extended_modes;		/* Extended modes */
+	u32 vtraps[8];		/* Virtual trap addresses */
+	u8 reserved[4];			/* Reserved, for future expansion */
+	struct qe_microcode {
+		u8 id[32];      	/* Null-terminated identifier */
+		u32 traps[16];       /* Trap addresses, 0 == ignore */
+		u32 eccr;    	/* The value for the ECCR register */
+		u32 iram_offset;     /* Offset into I-RAM for the code */
+		u32 count;   	/* Number of 32-bit words of the code */
+		u32 code_offset;     /* Offset of the actual microcode */
+		u8 major;       	/* The microcode version major */
+		u8 minor;       	/* The microcode version minor */
+		u8 revision;		/* The microcode version revision */
+		u8 padding;		/* Reserved, for alignment */
+		u8 reserved[4];		/* Reserved, for future expansion */
+	} __attribute__ ((packed)) microcode[1];
+	/* All microcode binaries should be located here */
+	/* CRC32 should be located here, after the microcode binaries */
+} __attribute__ ((packed));
+
+struct qe_firmware_info {
+	char id[64];		/* Firmware name */
+	u32 vtraps[8];		/* Virtual trap addresses */
+	u64 extended_modes;	/* Extended modes */
+};
+
 void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign);
 void qe_issue_cmd(uint cmd, uint sbc, u8 mcn, u32 cmd_data);
 uint qe_muram_alloc(uint size, uint align);
@@ -233,5 +287,7 @@ void qe_reset(void);
 void qe_assign_page(uint snum, uint para_ram_base);
 int qe_set_brg(uint brg, uint rate);
 int qe_set_mii_clk_src(int ucc_num);
+int qe_upload_firmware(const struct qe_firmware *firmware);
+struct qe_firmware_info *qe_get_firmware_info(void);
 
 #endif /* __QE_H__ */
diff --git a/include/asm-ppc/immap_qe.h b/include/asm-ppc/immap_qe.h
index a16a6d3..bec54aa 100644
--- a/include/asm-ppc/immap_qe.h
+++ b/include/asm-ppc/immap_qe.h
@@ -513,10 +513,39 @@ typedef struct dbg {
 	u8 res2[0x48];
 } __attribute__ ((packed)) dbg_t;
 
-/* RISC Special Registers (Trap and Breakpoint)
-*/
+/*
+ * RISC Special Registers (Trap and Breakpoint).  These are described in
+ * the QE Developer's Handbook.
+ */
 typedef struct rsp {
-	u8 fixme[0x100];
+	u32 tibcr[16];	/* Trap/instruction breakpoint control regs */
+	u8 res0[64];
+	u32 ibcr0;
+	u32 ibs0;
+	u32 ibcnr0;
+	u8 res1[4];
+	u32 ibcr1;
+	u32 ibs1;
+	u32 ibcnr1;
+	u32 npcr;
+	u32 dbcr;
+	u32 dbar;
+	u32 dbamr;
+	u32 dbsr;
+	u32 dbcnr;
+	u8 res2[12];
+	u32 dbdr_h;
+	u32 dbdr_l;
+	u32 dbdmr_h;
+	u32 dbdmr_l;
+	u32 bsr;
+	u32 bor;
+	u32 bior;
+	u8 res3[4];
+	u32 iatr[4];
+	u32 eccr;		/* Exception control configuration register */
+	u32 eicr;
+	u8 res4[0x100-0xf8];
 } __attribute__ ((packed)) rsp_t;
 
 typedef struct qe_immap {
-- 
1.5.2.4





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