tricorder: panic() on unknown board

[karo-tx-uboot.git] / board / corscience / tricorder / tricorder.c

diff --git a/board/corscience/tricorder/tricorder.c b/board/corscience/tricorder/tricorder.c
index aaff2e868ba2e99e90e55afad877a9111838b058..b8129168b9fa7641203a757105f979e5bed96745 100644 (file)
--- a/board/corscience/tricorder/tricorder.c
+++ b/board/corscience/tricorder/tricorder.c
@@ -8,32 +8,18 @@
  * Derived from Devkit8000 code by
  * Frederik Kriewitz <frederik@kriewitz.eu>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 #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;
 
@@ -50,12 +36,87 @@ int board_init(void)
        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);
@@ -80,7 +141,7 @@ void set_muxconf_regs(void)
 #if defined(CONFIG_GENERIC_MMC) && !(defined(CONFIG_SPL_BUILD))
 int board_mmc_init(bd_t *bis)
 {
-       return omap_mmc_init(0, 0, 0);
+       return omap_mmc_init(0, 0, 0, -1, -1);
 }
 #endif
 
@@ -91,15 +152,14 @@ int board_mmc_init(bd_t *bis)
  * provides the timing values back to the function that configures
  * the memory.  We have either one or two banks of 128MB DDR.
  */
-void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl,
-                               u32 *mr)
+void get_board_mem_timings(struct board_sdrc_timings *timings)
 {
        /* General SDRC config */
-       *mcfg = MICRON_V_MCFG_165(128 << 20);
-       *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+       timings->mcfg = MICRON_V_MCFG_165(128 << 20);
+       timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 
        /* AC timings */
-       *ctrla = MICRON_V_ACTIMA_165;
-       *ctrlb = MICRON_V_ACTIMB_165;
-       *mr = MICRON_V_MR_165;
+       timings->ctrla = MICRON_V_ACTIMA_165;
+       timings->ctrlb = MICRON_V_ACTIMB_165;
+       timings->mr = MICRON_V_MR_165;
 }