[U-Boot] [PATCH v2 15/16] [PATCH] mgcoge, mgsuvd: added support for the IVM EEprom.

Heiko Schocher
2008-10-15T07:41:00Z

The EEprom contains some Manufacturerinformation,
which are read from u-boot at boot time, and saved
in same hush shell variables.

Signed-off-by: Heiko Schocher <hs@denx.de>
---
board/keymile/common/common.c | 287 +++++++++++++++++++++++++++++++++++++++++
board/keymile/mgcoge/mgcoge.c | 7 +
board/keymile/mgsuvd/mgsuvd.c | 8 +
include/configs/mgcoge.h | 6 +
include/configs/mgsuvd.h | 6 +
5 files changed, 314 insertions(+), 0 deletions(-)

diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 13b80fe..ccf76ca 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -25,6 +25,7 @@
#include <mpc8260.h>
#include <ioports.h>
#include <malloc.h>
+#include <hush.h>

#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
@@ -36,6 +37,292 @@

extern int i2c_soft_read_pin (void);

+int ivm_calc_crc (unsigned char *buf, int len)
+{
+ const unsigned short crc_tab[16] = {
+ 0x0000, 0xCC01, 0xD801, 0x1400,
+ 0xF001, 0x3C00, 0x2800, 0xE401,
+ 0xA001, 0x6C00, 0x7800, 0xB401,
+ 0x5000, 0x9C01, 0x8801, 0x4400};
+
+ unsigned short crc = 0; /* final result */
+ unsigned short r1 = 0; /* temp */
+ unsigned char byte = 0; /* input buffer */
+ int i;
+
+ /* calculate CRC from array data */
+ for (i = 0; i < len; i++) {
+ byte = buf[i];
+
+ /* lower 4 bits */
+ r1 = crc_tab[crc & 0xF];
+ crc = ((crc) >> 4) & 0x0FFF;
+ crc = crc ^ r1 ^ crc_tab[byte & 0xF];
+
+ /* upper 4 bits */
+ r1 = crc_tab[crc & 0xF];
+ crc = (crc >> 4) & 0x0FFF;
+ crc = crc ^ r1 ^ crc_tab[(byte >> 4) & 0xF];
+ }
+ return crc;
+}
+
+static int ivm_set_value (char *name, char *value)
+{
+ char tempbuf[256];
+
+ if (value != NULL) {
+ sprintf (tempbuf, "%s=%s", name, value);
+ return set_local_var (tempbuf, 0);
+ } else {
+ unset_local_var (name);
+ }
+ return 0;
+}
+
+static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
+ int check)
+{
+ unsigned short val;
+ unsigned char valbuf[30];
+
+ if ((buf[off + 0] != buf[off + 2]) &&
+ (buf[off + 2] != buf[off + 4])) {
+ printf ("%s Error corrupted %s\n", __FUNCTION__, name);
+ val = -1;
+ } else {
+ val = buf[off + 0] + (buf[off + 1] << 8);
+ if ((val == 0) && (check == 1))
+ val = -1;
+ }
+ sprintf ((char *)valbuf, "%x", val);
+ ivm_set_value (name, (char *)valbuf);
+ return val;
+}
+
+#define INVENTORYBLOCKSIZE 0x100
+#define INVENTORYDATAADDRESS 0x21
+#define INVENTORYDATASIZE (INVENTORYBLOCKSIZE - INVENTORYDATAADDRESS - 3)
+
+#define IVM_POS_SHORT_TEXT 0
+#define IVM_POS_MANU_ID 1
+#define IVM_POS_MANU_SERIAL 2
+#define IVM_POS_PART_NUMBER 3
+#define IVM_POS_BUILD_STATE 4
+#define IVM_POS_SUPPLIER_PART_NUMBER 5
+#define IVM_POS_DELIVERY_DATE 6
+#define IVM_POS_SUPPLIER_BUILD_STATE 7
+#define IVM_POS_CUSTOMER_ID 8
+#define IVM_POS_CUSTOMER_PROD_ID 9
+#define IVM_POS_HISTORY 10
+#define IVM_POS_SYMBOL_ONLY 11
+
+static char convert_char (char c)
+{
+ return (c < ' ' || c > '~') ? '.' : c;
+}
+
+static int ivm_findinventorystring (int type,
+ unsigned char* const string,
+ unsigned long maxlen,
+ unsigned char *buf)
+{
+ int xcode = 0;
+ unsigned long cr = 0;
+ unsigned long addr = INVENTORYDATAADDRESS;
+ unsigned long size = 0;
+ unsigned long nr = type;
+ int stop = 0; /* stop on semicolon */
+
+ memset(string, '\0', maxlen);
+ switch (type) {
+ case IVM_POS_SYMBOL_ONLY:
+ nr = 0;
+ stop= 1;
+ break;
+ default:
+ nr = type;
+ stop = 0;
+ }
+
+ /* Look for the requested number of CR. */
+ while ((cr != nr) && (addr < INVENTORYDATASIZE)) {
+ if ((buf[addr] == '\r')) {
+ cr++;
+ }
+ addr++;
+ }
+
+ /* the expected number of CR was found until the end of the IVM
+ * content --> fill string */
+ if (addr < INVENTORYDATASIZE) {
+ /* Copy the IVM string in the corresponding string */
+ for (; (buf[addr] != '\r') &&
+ ((buf[addr] != ';') || (!stop)) &&
+ (size < (maxlen - 1) &&
+ (addr < INVENTORYDATASIZE)); addr++)
+ {
+ size += sprintf((char *)string + size, "%c",
+ convert_char (buf[addr]));
+ }
+
+ /* copy phase is done: check if everything is ok. If not,
+ * the inventory data is most probably corrupted: tell
+ * the world there is a problem! */
+ if (addr == INVENTORYDATASIZE) {
+ xcode = -1;
+ printf ("Error end of string not found\n");
+ } else if ((size >= (maxlen - 1)) &&
+ (buf[addr] != '\r')) {
+ xcode = -1;
+ printf ("string too long till next CR\n");
+ }
+ } else {
+ /* some CR are missing...
+ * the inventory data is most probably corrupted */
+ xcode = -1;
+ printf ("not enough cr found\n");
+ }
+ return xcode;
+}
+
+#define GET_STRING(name, which, len) \
+ if (ivm_findinventorystring (which, valbuf, len, buf) == 0) { \
+ ivm_set_value (name, (char *)valbuf); \
+ }
+
+static int ivm_check_crc (unsigned char *buf, int block)
+{
+ unsigned long crc;
+ unsigned long crceeprom;
+
+ crc = ivm_calc_crc (buf, CFG_IVM_EEPROM_PAGE_LEN - 2);
+ crceeprom = (buf[CFG_IVM_EEPROM_PAGE_LEN - 1] + \
+ buf[CFG_IVM_EEPROM_PAGE_LEN - 2] * 256);
+ if (crc != crceeprom) {
+ printf ("Error CRC Block: %d EEprom: calculated: %lx EEprom: %lx\n",
+ block, crc, crceeprom);
+ return -1;
+ }
+ return 0;
+}
+
+static int ivm_analyze_block2 (unsigned char *buf, int len)
+{
+ unsigned char valbuf[CFG_IVM_EEPROM_PAGE_LEN];
+ unsigned long count;
+
+ /* IVM_MacAddress */
+ sprintf ((char *)valbuf, "%02X:%02X:%02X:%02X:%02X:%02X",
+ buf[1],
+ buf[2],
+ buf[3],
+ buf[4],
+ buf[5],
+ buf[6]);
+ ivm_set_value ("IVM_MacAddress", (char *)valbuf);
+ if (getenv ("ethaddr") == NULL)
+ setenv ((char *)"ethaddr", (char *)valbuf);
+ /* IVM_MacCount */
+ count = (buf[10] << 24) +
+ (buf[11] << 16) +
+ (buf[12] << 8) +
+ buf[13];
+ if (count == 0xffffffff)
+ count = 1;
+ sprintf ((char *)valbuf, "%lx", count);
+ ivm_set_value ("IVM_MacCount", (char *)valbuf);
+ return 0;
+}
+
+int ivm_analyze_eeprom (unsigned char *buf, int len)
+{
+ unsigned short val;
+ unsigned char valbuf[CFG_IVM_EEPROM_PAGE_LEN];
+ unsigned char *tmp;
+
+ if (ivm_check_crc (buf, 0) != 0)
+ return -1;
+
+ ivm_get_value (buf, CFG_IVM_EEPROM_PAGE_LEN, "IVM_BoardId", 0, 1);
+ val = ivm_get_value (buf, CFG_IVM_EEPROM_PAGE_LEN, "IVM_HWKey", 6, 1);
+ if (val != 0xffff) {
+ sprintf ((char *)valbuf, "%x", ((val /100) % 10));
+ ivm_set_value ("IVM_HWVariant", (char *)valbuf);
+ sprintf ((char *)valbuf, "%x", (val % 100));
+ ivm_set_value ("IVM_HWVersion", (char *)valbuf);
+ }
+ ivm_get_value (buf, CFG_IVM_EEPROM_PAGE_LEN, "IVM_Functions", 12, 0);
+
+ GET_STRING("IVM_Symbol", IVM_POS_SYMBOL_ONLY, 8)
+ GET_STRING("IVM_DeviceName", IVM_POS_SHORT_TEXT, 64)
+ tmp = (unsigned char *) getenv("IVM_DeviceName");
+ if (tmp) {
+ int len = strlen ((char *)tmp);
+ int i = 0;
+
+ while (i < len) {
+ if (tmp[i] == ';') {
+ ivm_set_value ("IVM_ShortText", (char *)&tmp[i + 1]);
+ break;
+ }
+ i++;
+ }
+ if (i >= len)
+ ivm_set_value ("IVM_ShortText", NULL);
+ } else {
+ ivm_set_value ("IVM_ShortText", NULL);
+ }
+ GET_STRING("IVM_ManufacturerID", IVM_POS_MANU_ID, 32)
+ GET_STRING("IVM_ManufacturerSerialNumber", IVM_POS_MANU_SERIAL, 20)
+ GET_STRING("IVM_ManufacturerPartNumber", IVM_POS_PART_NUMBER, 32)
+ GET_STRING("IVM_ManufacturerBuildState", IVM_POS_BUILD_STATE, 32)
+ GET_STRING("IVM_SupplierPartNumber", IVM_POS_SUPPLIER_PART_NUMBER, 32)
+ GET_STRING("IVM_DelieveryDate", IVM_POS_DELIVERY_DATE, 32)
+ GET_STRING("IVM_SupplierBuildState", IVM_POS_SUPPLIER_BUILD_STATE, 32)
+ GET_STRING("IVM_CustomerID", IVM_POS_CUSTOMER_ID, 32)
+ GET_STRING("IVM_CustomerProductID", IVM_POS_CUSTOMER_PROD_ID, 32)
+
+ if (ivm_check_crc (&buf[CFG_IVM_EEPROM_PAGE_LEN * 2], 2) != 0)
+ return -2;
+ ivm_analyze_block2 (&buf[CFG_IVM_EEPROM_PAGE_LEN * 2], CFG_IVM_EEPROM_PAGE_LEN);
+
+ return 0;
+}
+
+int ivm_read_eeprom (void)
+{
+ I2C_MUX_DEVICE *dev = NULL;
+ uchar i2c_buffer[CFG_IVM_EEPROM_MAX_LEN];
+ uchar *buf;
+ unsigned dev_addr = CFG_IVM_EEPROM_ADR;
+
+ /* First init the Bus, select the Bus */
+#if defined(CFG_I2C_IVM_BUS)
+ dev = i2c_mux_ident_muxstring ((uchar *)CFG_I2C_IVM_BUS);
+#else
+ buf = (unsigned char *) getenv ("EEprom_ivm");
+ if (buf != NULL)
+ dev = i2c_mux_ident_muxstring (buf);
+#endif
+ if (dev == NULL) {
+ printf ("Error couldnt add Bus for IVM\n");
+ return -1;
+ }
+ i2c_set_bus_num (dev->busid);
+
+ buf = (unsigned char *) getenv ("EEprom_ivm_addr");
+ if (buf != NULL)
+ dev_addr = simple_strtoul ((char *)buf, NULL, 16);
+
+ if (eeprom_read (dev_addr, 0, i2c_buffer, CFG_IVM_EEPROM_MAX_LEN) != 0) {
+ printf ("Error reading EEprom\n");
+ return -2;
+ }
+
+ return ivm_analyze_eeprom (i2c_buffer, CFG_IVM_EEPROM_MAX_LEN);
+}
+
#if defined(CFG_I2C_INIT_BOARD)
#define DELAY_ABORT_SEQ 62
#define DELAY_HALF_PERIOD (500 / (CFG_I2C_SPEED / 1000))
diff --git a/board/keymile/mgcoge/mgcoge.c b/board/keymile/mgcoge/mgcoge.c
index d3e46f5..31703ab 100644
--- a/board/keymile/mgcoge/mgcoge.c
+++ b/board/keymile/mgcoge/mgcoge.c
@@ -34,6 +34,7 @@
#include <i2c.h>
#endif

+extern int ivm_read_eeprom (void);
/*
* I/O Port configuration table
*
@@ -299,6 +300,12 @@ int board_early_init_r (void)
return 0;
}

+int hush_init_var (void)
+{
+ ivm_read_eeprom ();
+ return 0;
+}
+
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
/*
* update "memory" property in the blob
diff --git a/board/keymile/mgsuvd/mgsuvd.c b/board/keymile/mgsuvd/mgsuvd.c
index 62df832..265dfe8 100644
--- a/board/keymile/mgsuvd/mgsuvd.c
+++ b/board/keymile/mgsuvd/mgsuvd.c
@@ -32,6 +32,8 @@
#include <libfdt.h>
#endif

+extern int ivm_read_eeprom (void);
+
DECLARE_GLOBAL_DATA_PTR;

const uint sdram_table[] =
@@ -145,6 +147,12 @@ int board_early_init_r(void)
return 0;
}

+int hush_init_var (void)
+{
+ ivm_read_eeprom ();
+ return 0;
+}
+
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
/*
* update "memory" property in the blob
diff --git a/include/configs/mgcoge.h b/include/configs/mgcoge.h
index 6564c15..cdbfd67 100644
--- a/include/configs/mgcoge.h
+++ b/include/configs/mgcoge.h
@@ -134,6 +134,7 @@
#define CFG_PROMPT_HUSH_PS2 "> "
#define CFG_LONGHELP /* undef to save memory */
#define CFG_PROMPT "=> " /* Monitor Command Prompt */
+#define CONFIG_HUSH_INIT_VAR 1
#if defined(CONFIG_CMD_KGDB)
#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
#else
@@ -212,6 +213,11 @@
#define CFG_EEPROM_PAGE_WRITE_BITS 3
#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10

+/* Support the IVM EEprom */
+#define CFG_IVM_EEPROM_ADR 0x50
+#define CFG_IVM_EEPROM_MAX_LEN 0x400
+#define CFG_IVM_EEPROM_PAGE_LEN 0x100
+
/* I2C SYSMON (LM75, AD7414 is almost compatible) */
#define CONFIG_DTT_LM75 1 /* ON Semi's LM75 */
#define CONFIG_DTT_SENSORS {0} /* Sensor addresses */
diff --git a/include/configs/mgsuvd.h b/include/configs/mgsuvd.h
index e2a7c07..eda71c0 100644
--- a/include/configs/mgsuvd.h
+++ b/include/configs/mgsuvd.h
@@ -129,6 +129,7 @@
#define CFG_HUSH_PARSER 1 /* Use the HUSH parser */
#ifdef CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2 "> "
+#define CONFIG_HUSH_INIT_VAR 1
#endif

#if defined(CONFIG_CMD_KGDB)
@@ -383,6 +384,11 @@
#define CFG_EEPROM_PAGE_WRITE_BITS 3
#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10

+/* Support the IVM EEprom */
+#define CFG_IVM_EEPROM_ADR 0x50
+#define CFG_IVM_EEPROM_MAX_LEN 0x400
+#define CFG_IVM_EEPROM_PAGE_LEN 0x100
+
/* I2C SYSMON (LM75, AD7414 is almost compatible) */
#define CONFIG_DTT_LM75 1 /* ON Semi's LM75 */
#define CONFIG_DTT_SENSORS {0, 2, 4, 6} /* Sensor addresses */
--
1.5.6.1

--
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