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sparc: leon3: Clear GD_FLAG_SERIAL_READY flag on AMBA failure

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Clear the GD_FLG_SERIAL_READY flag on AMBA P&P lookup failure so that the
panic function can use DEBUG_UART driver. drivers/serial/serial.c set this
flag before calling this function, preventing DEBUG_UART code from running.

Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
This commit is contained in:
Francois Retief 2015-11-23 09:49:57 +02:00
parent f33f888d0e
commit 58e5585625
1 changed files with 1 additions and 0 deletions
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1
arch/sparc/cpu/leon3/serial.c
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@ -29,6 +29,7 @@ static int leon3_serial_init(void)
/* find UART */
if (ambapp_apb_find(&ambapp_plb, VENDOR_GAISLER, GAISLER_APBUART,
CONFIG_SYS_GRLIB_APBUART_INDEX, &apbdev) != 1) {
gd->flags &= ~GD_FLG_SERIAL_READY;
panic("%s: apbuart not found!\n", __func__);
return -1; /* didn't find hardware */
}