From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Daney Subject: [PATCH v2 1/4] MIPS: OCTEON: Set proper UART clock in internal device trees. Date: Wed, 19 Jun 2013 14:37:26 -0700 Message-ID: <1371677849-23912-2-git-send-email-ddaney.cavm@gmail.com> References: <1371677849-23912-1-git-send-email-ddaney.cavm@gmail.com> Return-path: In-Reply-To: <1371677849-23912-1-git-send-email-ddaney.cavm@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-mips@linux-mips.org, ralf@linux-mips.org, Jamie Iles , Greg Kroah-Hartman , Jiri Slaby , linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org, David Daney List-Id: linux-serial@vger.kernel.org From: David Daney 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 --- 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