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From: David Daney <ddaney.cavm@gmail.com>
To: linux-mips@linux-mips.org, ralf@linux-mips.org,
	Jamie Iles <jamie@jamieiles.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.cz>,
	linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, David Daney <david.daney@cavium.com>
Subject: [PATCH 2/5] MIPS: OCTEON: Set proper UART clock in internal device trees.
Date: Tue, 18 Jun 2013 12:12:52 -0700	[thread overview]
Message-ID: <1371582775-12141-3-git-send-email-ddaney.cavm@gmail.com> (raw)
In-Reply-To: <1371582775-12141-1-git-send-email-ddaney.cavm@gmail.com>

From: David Daney <david.daney@cavium.com>

Following patch to use generic 8250 drivers will need proper clock
information.  So when using the internal device tree, populate the
"clock-frequency" property with the correct value.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/mips/cavium-octeon/octeon-platform.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index 389512e..7b746e7 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -490,8 +490,15 @@ int __init octeon_prune_device_tree(void)
 
 		if (alias_prop) {
 			uart = fdt_path_offset(initial_boot_params, alias_prop);
-			if (uart_mask & (1 << i))
+			if (uart_mask & (1 << i)) {
+				__be32 f;
+
+				f = cpu_to_be32(octeon_get_io_clock_rate());
+				fdt_setprop_inplace(initial_boot_params,
+						    uart, "clock-frequency",
+						    &f, sizeof(f));
 				continue;
+			}
 			pr_debug("Deleting uart%d\n", i);
 			fdt_nop_node(initial_boot_params, uart);
 			fdt_nop_property(initial_boot_params, aliases,
-- 
1.7.11.7

  parent reply	other threads:[~2013-06-18 19:12 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-18 19:12 [PATCH 0/5] MIPS/tty/8250: Use standard 8250 drivers for OCTEON David Daney
2013-06-18 19:12 ` [PATCH 1/5] Revert "MIPS: Octeon: Fix build error if CONFIG_SERIAL_8250=n" David Daney
2013-06-18 19:12 ` David Daney [this message]
2013-06-18 19:12 ` [PATCH 3/5] tty/8250_dw: Add support for OCTEON UARTS David Daney
2013-06-18 19:26   ` Greg Kroah-Hartman
2013-06-19 10:01   ` Arnd Bergmann
2013-06-19 10:52     ` Ralf Baechle
2013-06-19 16:45     ` David Daney
2013-06-19 18:52       ` Arnd Bergmann
2013-06-19 19:12         ` David Daney
2013-06-19 14:10   ` Heikki Krogerus
2013-06-19 16:47     ` David Daney
2013-06-18 19:12 ` [PATCH 4/5] MIPS: OCTEON: Remove custom serial setup code David Daney
2013-06-18 19:12 ` [PATCH 5/5] MIPS: Update cavium_octeon_defconfig David Daney
2013-06-18 19:26 ` [PATCH 0/5] MIPS/tty/8250: Use standard 8250 drivers for OCTEON Greg Kroah-Hartman
2013-06-18 19:36 ` Ralf Baechle
2013-06-18 19:59   ` David Daney
2013-06-18 21:28 ` Jamie Iles

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