1 files changed, 117 insertions, 9 deletions

diff --git a/board/corscience/tricorder/tricorder.c b/board/corscience/tricorder/tricorder.c
index c7099e5e3a..2dfcb271d3 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;
 
@@ -34,16 +36,91 @@ 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);
-#endif
+	status_led_set(0, STATUS_LED_ON);
+	status_led_set(1, STATUS_LED_ON);
+	status_led_set(2, STATUS_LED_ON);
 
 	dieid_num_r();
 
@@ -77,12 +154,43 @@ int board_mmc_init(bd_t *bis)
  */
 void get_board_mem_timings(struct board_sdrc_timings *timings)
 {
+	struct tricorder_eeprom eeprom;
+	get_eeprom(&eeprom);
+
 	/* General SDRC config */
-	timings->mcfg = MICRON_V_MCFG_165(128 << 20);
-	timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+	if (eeprom.board_version[0] > 'D') {
+		/* use optimized timings for our SDRAM device */
+		timings->mcfg = MCFG((256 << 20), 14);
+#define MT46H64M32_TDAL  6	/* Twr/Tck + Trp/tck		*/
+				/* 15/6 + 18/6 = 5.5 -> 6	*/
+#define MT46H64M32_TDPL  3	/* 15/6 = 2.5 -> 3 (Twr)	*/
+#define MT46H64M32_TRRD  2	/* 12/6 = 2			*/
+#define MT46H64M32_TRCD  3	/* 18/6 = 3			*/
+#define MT46H64M32_TRP   3	/* 18/6 = 3			*/
+#define MT46H64M32_TRAS  7	/* 42/6 = 7			*/
+#define MT46H64M32_TRC  10	/* 60/6 = 10			*/
+#define MT46H64M32_TRFC 12	/* 72/6 = 12			*/
+		timings->ctrla = ACTIM_CTRLA(MT46H64M32_TRFC, MT46H64M32_TRC,
+					     MT46H64M32_TRAS, MT46H64M32_TRP,
+					     MT46H64M32_TRCD, MT46H64M32_TRRD,
+					     MT46H64M32_TDPL,
+					     MT46H64M32_TDAL);
+
+#define MT46H64M32_TWTR 1
+#define MT46H64M32_TCKE 1
+#define MT46H64M32_XSR 19	/* 112.5/6 = 18.75 => ~19	*/
+#define MT46H64M32_TXP 1
+		timings->ctrlb = ACTIM_CTRLB(MT46H64M32_TWTR, MT46H64M32_TCKE,
+					     MT46H64M32_TXP, MT46H64M32_XSR);
 
-	/* AC timings */
-	timings->ctrla = MICRON_V_ACTIMA_165;
-	timings->ctrlb = MICRON_V_ACTIMB_165;
-	timings->mr = MICRON_V_MR_165;
+		timings->mr = MICRON_V_MR_165;
+		timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+	} else {
+		/* use conservative beagleboard timings as default */
+		timings->mcfg = MICRON_V_MCFG_165(128 << 20);
+		timings->ctrla = MICRON_V_ACTIMA_165;
+		timings->ctrlb = MICRON_V_ACTIMB_165;
+		timings->mr = MICRON_V_MR_165;
+		timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+	}
 }