1 files changed, 95 insertions, 12 deletions

diff --git a/board/freescale/common/qixis.c b/board/freescale/common/qixis.c
index c92902a..2b74d02 100644
--- a/board/freescale/common/qixis.c
+++ b/board/freescale/common/qixis.c
@@ -14,8 +14,23 @@
 #include <common.h>
 #include <command.h>
 #include <asm/io.h>
+#include <linux/time.h>
+#include <i2c.h>
 #include "qixis.h"
 
+#ifdef CONFIG_SYS_I2C_FPGA_ADDR
+u8 qixis_read_i2c(unsigned int reg)
+{
+	return i2c_reg_read(CONFIG_SYS_I2C_FPGA_ADDR, reg);
+}
+
+void qixis_write_i2c(unsigned int reg, u8 value)
+{
+	u8 val = value;
+	i2c_reg_write(CONFIG_SYS_I2C_FPGA_ADDR, reg, val);
+}
+#endif
+
 u8 qixis_read(unsigned int reg)
 {
 	void *p = (void *)QIXIS_BASE;
@@ -30,6 +45,72 @@ void qixis_write(unsigned int reg, u8 value)
 	out_8(p + reg, value);
 }
 
+u16 qixis_read_minor(void)
+{
+	u16 minor;
+
+	/* this data is in little endian */
+	QIXIS_WRITE(tagdata, 5);
+	minor = QIXIS_READ(tagdata);
+	QIXIS_WRITE(tagdata, 6);
+	minor += QIXIS_READ(tagdata) << 8;
+
+	return minor;
+}
+
+char *qixis_read_time(char *result)
+{
+	time_t time = 0;
+	int i;
+
+	/* timestamp is in 32-bit big endian */
+	for (i = 8; i <= 11; i++) {
+		QIXIS_WRITE(tagdata, i);
+		time =  (time << 8) + QIXIS_READ(tagdata);
+	}
+
+	return ctime_r(&time, result);
+}
+
+char *qixis_read_tag(char *buf)
+{
+	int i;
+	char tag, *ptr = buf;
+
+	for (i = 16; i <= 63; i++) {
+		QIXIS_WRITE(tagdata, i);
+		tag = QIXIS_READ(tagdata);
+		*(ptr++) = tag;
+		if (!tag)
+			break;
+	}
+	if (i > 63)
+		*ptr = '\0';
+
+	return buf;
+}
+
+/*
+ * return the string of binary of u8 in the format of
+ * 1010 10_0. The masked bit is filled as underscore.
+ */
+const char *byte_to_binary_mask(u8 val, u8 mask, char *buf)
+{
+	char *ptr;
+	int i;
+
+	ptr = buf;
+	for (i = 0x80; i > 0x08 ; i >>= 1, ptr++)
+		*ptr = (val & i) ? '1' : ((mask & i) ? '_' : '0');
+	*(ptr++) = ' ';
+	for (i = 0x08; i > 0 ; i >>= 1, ptr++)
+		*ptr = (val & i) ? '1' : ((mask & i) ? '_' : '0');
+
+	*ptr = '\0';
+
+	return buf;
+}
+
 void qixis_reset(void)
 {
 	QIXIS_WRITE(rst_ctl, QIXIS_RST_CTL_RESET);
@@ -61,7 +142,6 @@ void set_altbank(void)
 	QIXIS_WRITE(brdcfg[0], reg);
 }
 
-#ifdef DEBUG
 static void qixis_dump_regs(void)
 {
 	int i;
@@ -91,7 +171,14 @@ static void qixis_dump_regs(void)
 	printf("stat_sys = %02x\n", QIXIS_READ(stat_sys));
 	printf("stat_alrm = %02x\n", QIXIS_READ(stat_alrm));
 }
-#endif
+
+static void __qixis_dump_switch(void)
+{
+	puts("Reverse engineering switch is not implemented for this board\n");
+}
+
+void qixis_dump_switch(void)
+	__attribute__((weak, alias("__qixis_dump_switch")));
 
 int qixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
@@ -122,16 +209,13 @@ int qixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 				return 0;
 			}
 		}
-	}
-
-#ifdef DEBUG
-	else if (strcmp(argv[1], "dump") == 0) {
+	} else if (strcmp(argv[1], "dump") == 0) {
 		qixis_dump_regs();
 		return 0;
-	}
-#endif
-
-	else {
+	} else if (strcmp(argv[1], "switch") == 0) {
+		qixis_dump_switch();
+		return 0;
+	} else {
 		printf("Invalid option: %s\n", argv[1]);
 		return 1;
 	}
@@ -146,7 +230,6 @@ U_BOOT_CMD(
 	"qixis_reset altbank - reset to alternate bank\n"
 	"qixis watchdog <watchdog_period> - set the watchdog period\n"
 	"	period: 1s 2s 4s 8s 16s 32s 1min 2min 4min 8min\n"
-#ifdef DEBUG
 	"qixis_reset dump - display the QIXIS registers\n"
-#endif
+	"qixis_reset switch - display switch\n"
 	);