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authorShaveta Leekha <shaveta@freescale.com>2012-12-23 19:25:35 +0000
committerAndy Fleming <afleming@freescale.com>2013-01-30 11:25:11 -0600
commitc6cef92f6397b26a541867f32beb0286a70d8e05 (patch)
tree1f79469ab1a89c96607e1890509989e94cc1cc73 /board/freescale
parentb5b06fb7b04a93ea48638d4d2ba1932051a28f64 (diff)
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powerpc/qixis: enable qixis dump command and add switch dumping command
Remove #ifdef so that "qixis dump" command is always available Add "qixis_reset switch" command to dump switch settings Qixis doesn't have 1:1 switch mapping. We need to reverse engineer from registers to figure out switch settings. Not all bits are available. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'board/freescale')
-rw-r--r--board/freescale/common/qixis.c47
-rw-r--r--board/freescale/common/qixis.h1
2 files changed, 36 insertions, 12 deletions
diff --git a/board/freescale/common/qixis.c b/board/freescale/common/qixis.c
index 2cf393b..f7d2f46 100644
--- a/board/freescale/common/qixis.c
+++ b/board/freescale/common/qixis.c
@@ -76,6 +76,27 @@ char *qixis_read_tag(char *buf)
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);
@@ -107,7 +128,6 @@ void set_altbank(void)
QIXIS_WRITE(brdcfg[0], reg);
}
-#ifdef DEBUG
static void qixis_dump_regs(void)
{
int i;
@@ -137,7 +157,14 @@ 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[])
{
@@ -168,16 +195,13 @@ 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;
}
@@ -192,7 +216,6 @@ 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"
);
diff --git a/board/freescale/common/qixis.h b/board/freescale/common/qixis.h
index 4d73461..2b8f607 100644
--- a/board/freescale/common/qixis.h
+++ b/board/freescale/common/qixis.h
@@ -91,6 +91,7 @@ void qixis_write(unsigned int reg, u8 value);
u16 qixis_read_minor(void);
char *qixis_read_time(char *result);
char *qixis_read_tag(char *buf);
+const char *byte_to_binary_mask(u8 val, u8 mask, char *buf);
#define QIXIS_READ(reg) qixis_read(offsetof(struct qixis, reg))
#define QIXIS_WRITE(reg, value) qixis_write(offsetof(struct qixis, reg), value)