linux-kernel - RE: [PATCH 0/2] serial: sh-sci: Fix earlycon on Renesas ARM platforms

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Date:   Thu, 30 Aug 2018 18:52:37 +0000
From:   Chris Brandt <Chris.Brandt@...esas.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Jiri Slaby <jslaby@...e.com>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Ulrich Hecht <uli+renesas@...nd.eu>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 0/2] serial: sh-sci: Fix earlycon on Renesas ARM platforms

Hi Geert,

On Thursday, August 30, 2018, Geert Uytterhoeven wrote:
> Earlycon for RZ/A2 (which is a new platform) will be fixed later in a
> separate patch.

I assume something like this:
(which works for me)


diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index ab3f6e91853d..426241da2e44 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -3414,6 +3414,12 @@ static int __init scif_early_console_setup(struct earlycon_device *device,
 {
        return early_console_setup(device, PORT_SCIF);
 }
+static int __init rzscifa_early_console_setup(struct earlycon_device *device,
+                                         const char *opt)
+{
+       port_cfg.regtype = SCIx_RZ_SCIFA_REGTYPE;
+       return early_console_setup(device, PORT_SCIF);
+}
 static int __init scifa_early_console_setup(struct earlycon_device *device,
                                          const char *opt)
 {
@@ -3432,6 +3438,7 @@ static int __init hscif_early_console_setup(struct earlycon_device *device,
 
 OF_EARLYCON_DECLARE(sci, "renesas,sci", sci_early_console_setup);
 OF_EARLYCON_DECLARE(scif, "renesas,scif", scif_early_console_setup);
+OF_EARLYCON_DECLARE(scif, "renesas,scif-r7s9210", rzscifa_early_console_setup);
 OF_EARLYCON_DECLARE(scifa, "renesas,scifa", scifa_early_console_setup);
 OF_EARLYCON_DECLARE(scifb, "renesas,scifb", scifb_early_console_setup);
 OF_EARLYCON_DECLARE(hscif, "renesas,hscif", hscif_early_console_setup);


Chris