Revert "bcma: init serial console directly from ChipCommon code"

commit 7195439d1d71bc4a6c33cfb57bc669a7cd041041 upstream.

This reverts commit 4c81acab3816 ("bcma: init serial console directly
from ChipCommon code") as it broke IRQ assignment. Getting IRQ with
bcma_core_irq helper on SoC requires MIPS core to be set. It happens
*after* ChipCommon initialization so we can't do this so early.

This fixes a user reported regression. It wasn't critical as serial was
still somehow working but lack of IRQs was making in unreliable.

Fixes: 4c81acab3816 ("bcma: init serial console directly from ChipCommon code")
Reported-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h
index f642c42..168fa17 100644
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -45,6 +45,9 @@
 void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc);
 void bcma_core_chipcommon_init(struct bcma_drv_cc *cc);
 void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable);
+#ifdef CONFIG_BCMA_DRIVER_MIPS
+void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
+#endif /* CONFIG_BCMA_DRIVER_MIPS */
 
 /* driver_chipcommon_b.c */
 int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb);