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MIPS: OCTEON: Set proper UART clock in internal device trees.

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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>
Cc: linux-mips@linux-mips.org
Cc: Jamie Iles <jamie@jamieiles.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5515/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2013-06-19 20:37:26 +00:00 committed by Ralf Baechle
parent 450acb0b12
commit 5219343f83
1 changed files with 8 additions and 1 deletions
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9
arch/mips/cavium-octeon/octeon-platform.c
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@ -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,