When booting in JTAG mode, there is no way to use soft break-points, and
no way of knowing when SPL has finished executing (so the user can issue
a 'halt' command to load u-boot.bin for example)
Add a debug output and simple loop to stop execution at the completion of
the SPL initialisation as a pseudo break-point when booting in JTAG mode
Signed-off-by: Graeme Russ <gr...@tss-engineering.com>
---
arch/arm/cpu/arm926ejs/mxs/spl_boot.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c
b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c
index 2a5f817..7bfc623 100644
--- a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c
@@ -157,6 +157,12 @@ void mxs_common_spl_init(const uint32_t arg, const
uint32_t *resptr,
data->boot_mode_idx = bootmode;
mxs_power_wait_pswitch();
+
+
+ if (mxs_boot_modes[data->boot_mode_idx].boot_pads == 0x06) {
+ debug("SPL: Waiting for JTAG user\n");
+ asm volatile ("x: b x");
+ }
}
/* Support aparatus */
--
1.9.3
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