diff options
Diffstat (limited to 'arch/arm/plat-mxc/cpu.c')
| -rw-r--r-- | arch/arm/plat-mxc/cpu.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/cpu.c b/arch/arm/plat-mxc/cpu.c index f5b7e0fa237..4fdf4a80c59 100644 --- a/arch/arm/plat-mxc/cpu.c +++ b/arch/arm/plat-mxc/cpu.c @@ -18,3 +18,26 @@ void imx_print_silicon_rev(const char *cpu, int srev) pr_info("CPU identified as %s, silicon rev %d.%d\n", cpu, (srev >> 4) & 0xf, srev & 0xf); } + +int mxc_jtag_enabled; /* OFF: 0 (default), ON: 1 */ +int uart_at_24; /* OFF: 0 (default); ON: 1 */ +/* + * Here are the JTAG options from the command line. By default JTAG + * is OFF which means JTAG is not connected and WFI is enabled + * + * "on" -- JTAG is connected, so WFI is disabled + * "off" -- JTAG is disconnected, so WFI is enabled + */ + +static int __init jtag_wfi_setup(char *p) +{ + if (memcmp(p, "on", 2) == 0) { + mxc_jtag_enabled = 1; + p += 2; + } else if (memcmp(p, "off", 3) == 0) { + mxc_jtag_enabled = 0; + p += 3; + } + return 0; +} +early_param("jtag", jtag_wfi_setup); |