From: Shaveta Leekha shaveta@freescale.com
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 --- board/freescale/common/qixis.c | 47 +++++++++++++++++++++++++++++---------- board/freescale/common/qixis.h | 1 + 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)