mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Ahmad Fatoum <ahmad@a3f.at>
To: barebox@lists.infradead.org
Cc: Roland Hieber <rhi@pengutronix.de>
Subject: [PATCH 05/11] ARM: rpi: support raspberry pi 1 and zero mini-uart
Date: Sat, 28 Nov 2020 22:39:28 +0100	[thread overview]
Message-ID: <20201128213934.681065-5-ahmad@a3f.at> (raw)
In-Reply-To: <20201128213934.681065-1-ahmad@a3f.at>

We don't have a clock driver for the raspberry pi, so board code needs
to list which used devices have clocks that are already known to be active
on boot. The Mini UART is one such device. We already wave away the
clock on the BCM2836, do the same for the BCM2835 as well.

Cc: Roland Hieber <rhi@pengutronix.de>
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
---
 arch/arm/boards/raspberry-pi/rpi-common.c     | 1 +
 arch/arm/mach-bcm283x/include/mach/platform.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c b/arch/arm/boards/raspberry-pi/rpi-common.c
index 292bcba608d4..46c8ad6f52d9 100644
--- a/arch/arm/boards/raspberry-pi/rpi-common.c
+++ b/arch/arm/boards/raspberry-pi/rpi-common.c
@@ -347,6 +347,7 @@ static int rpi_console_clock_init(void)
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
+	clkdev_add_physbase(clk, BCM2835_MINIUART_BASE, NULL);
 	clkdev_add_physbase(clk, BCM2836_MINIUART_BASE, NULL);
 
 	clk = clk_fixed("bcm2835-cs", 1 * 1000 * 1000);
diff --git a/arch/arm/mach-bcm283x/include/mach/platform.h b/arch/arm/mach-bcm283x/include/mach/platform.h
index d8561c1610f1..310f2463f2e5 100644
--- a/arch/arm/mach-bcm283x/include/mach/platform.h
+++ b/arch/arm/mach-bcm283x/include/mach/platform.h
@@ -32,6 +32,7 @@
 
 #define BCM2835_PL011_BASE 0x20201000
 #define BCM2836_PL011_BASE 0x3f201000
+#define BCM2835_MINIUART_BASE 0x20215040
 #define BCM2836_MINIUART_BASE 0x3f215040
 
 #endif
-- 
2.28.0


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

  parent reply	other threads:[~2020-11-28 21:39 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-28 21:39 [PATCH 01/11] Revert "ARM: dts: bcm2835-rpi: re-enable booting from SD card" Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 02/11] ARM: dts: rpi: drop unnecessary /chosen/stdout-path overrides Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 03/11] ARM: rpi: make functions in rpi-common.c static Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 04/11] ARM: rpi: move rpi_model_init() to postcore Ahmad Fatoum
2020-11-28 21:39 ` Ahmad Fatoum [this message]
2020-11-28 21:39 ` [PATCH 06/11] ARM: rpi: add new init function for Raspberry Pi Zero Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 07/11] ARM: rpi: Add Raspberry Pi Zero W mini-uart support Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 08/11] ARM: rpi: drop no longer needed environment Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 09/11] ARM: rpi: fix model description string Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 10/11] ARM: rpi: add new rpi boot target Ahmad Fatoum
2020-11-28 21:39 ` [PATCH 11/11] doc: bcm283x: document use of mini-uart on Raspberry Pi Zero W / CM3 Ahmad Fatoum
2020-11-29 19:50   ` Roland Hieber
2020-11-29 20:20     ` Ahmad Fatoum
2020-12-07  7:10     ` Sascha Hauer
2020-12-07 10:00       ` Ahmad Fatoum
2020-12-07 10:29         ` Sascha Hauer
2020-12-07 10:00   ` [PATCH] fixup! " Ahmad Fatoum

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201128213934.681065-5-ahmad@a3f.at \
    --to=ahmad@a3f.at \
    --cc=barebox@lists.infradead.org \
    --cc=rhi@pengutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox