tricorder: panic() on unknown board
Also hang() the board on panic().
Signed-off-by: Andreas Bießmann <andreas.biessmann@corscience.de>
diff --git a/board/corscience/tricorder/tricorder.c b/board/corscience/tricorder/tricorder.c
index c7099e5..b812916 100644
--- a/board/corscience/tricorder/tricorder.c
+++ b/board/corscience/tricorder/tricorder.c
@@ -13,11 +13,13 @@
#include <common.h>
#include <twl4030.h>
#include <asm/io.h>
+#include <asm/gpio.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
#include "tricorder.h"
+#include "tricorder-eeprom.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -34,12 +36,87 @@
return 0;
}
+/**
+ * get_eeprom - read the eeprom
+ *
+ * @eeprom - pointer to a eeprom struct to fill
+ *
+ * This function will panic() on wrong EEPROM content
+ */
+static void get_eeprom(struct tricorder_eeprom *eeprom)
+{
+ int ret;
+
+ if (!eeprom)
+ panic("No eeprom given!\n");
+
+ ret = gpio_request(7, "BMS");
+ if (ret)
+ panic("gpio: requesting BMS pin failed\n");
+
+ ret = gpio_direction_input(7);
+ if (ret)
+ panic("gpio: set BMS as input failed\n");
+
+ ret = gpio_get_value(7);
+ if (ret < 0)
+ panic("gpio: get BMS pin state failed\n");
+
+ gpio_free(7);
+
+ if (ret == 0) {
+ /* BMS is _not_ set, do the EEPROM check */
+ ret = tricorder_get_eeprom(0x51, eeprom);
+ if (!ret) {
+ if (strncmp(eeprom->board_name, "CS10411", 7) != 0)
+ panic("Wrong board name '%.*s'\n",
+ sizeof(eeprom->board_name),
+ eeprom->board_name);
+ if (eeprom->board_version[0] < 'D')
+ panic("Wrong board version '%.*s'\n",
+ sizeof(eeprom->board_version),
+ eeprom->board_version);
+ } else {
+ panic("Could not get board revision\n");
+ }
+ }
+}
+
+/**
+ * print_hwversion - print out a HW version string
+ *
+ * @eeprom - pointer to the eeprom
+ */
+static void print_hwversion(struct tricorder_eeprom *eeprom)
+{
+ size_t len;
+ if (!eeprom)
+ panic("No eeprom given!");
+
+ printf("Board %.*s:%.*s serial %.*s",
+ sizeof(eeprom->board_name), eeprom->board_name,
+ sizeof(eeprom->board_version), eeprom->board_version,
+ sizeof(eeprom->board_serial), eeprom->board_serial);
+
+ len = strnlen(eeprom->interface_version,
+ sizeof(eeprom->interface_version));
+ if (len > 0)
+ printf(" HW interface version %.*s",
+ sizeof(eeprom->interface_version),
+ eeprom->interface_version);
+ puts("\n");
+}
+
/*
* Routine: misc_init_r
* Description: Configure board specific parts
*/
int misc_init_r(void)
{
+ struct tricorder_eeprom eeprom;
+ get_eeprom(&eeprom);
+ print_hwversion(&eeprom);
+
twl4030_power_init();
#ifdef CONFIG_TWL4030_LED
twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
diff --git a/include/configs/tricorder.h b/include/configs/tricorder.h
index a3d8f12..087c44c 100644
--- a/include/configs/tricorder.h
+++ b/include/configs/tricorder.h
@@ -57,6 +57,9 @@
/* Hardware drivers */
+/* GPIO support */
+#define CONFIG_OMAP_GPIO
+
/* NS16550 Configuration */
#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
@@ -150,6 +153,9 @@
#define CONFIG_BOOTDELAY 3
+/* hang() the board on panic() */
+#define CONFIG_PANIC_HANG
+
/* environment placement (for NAND), is different for FLASHCARD but does not
* harm there */
#define CONFIG_ENV_OFFSET 0x120000 /* env start */
@@ -311,6 +317,7 @@
#define CONFIG_SPL_NAND_SIMPLE
#define CONFIG_SPL_BOARD_INIT
+#define CONFIG_SPL_GPIO_SUPPORT
#define CONFIG_SPL_LIBCOMMON_SUPPORT
#define CONFIG_SPL_LIBDISK_SUPPORT
#define CONFIG_SPL_I2C_SUPPORT