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clk: zynq: Force CPU_2X clock to be ungated 

The CPU_2X clock does not have a classical in-kernel user, but is,
amongst other things, required for OCM and debug access. Make sure this
clock is not mistakenly disabled during boot up by enabling it in the
platform's clock driver.

Cc: stable@vger.kernel.org # 3.11+
Fixes: 0ee52b157b 'clk: zynq: Add clock controller driver'
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
This commit is contained in:
Soren Brinkmann 2015-01-27 11:05:27 -08:00 committed by Michael Turquette
parent 8f101aa027
commit 3dccfecdb8
1 changed files with 1 additions and 0 deletions
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drivers/clk/zynq/clkc.c
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@ -303,6 +303,7 @@ static void __init zynq_clk_setup(struct device_node *np)
clks[cpu_2x] = clk_register_gate(NULL, clk_output_name[cpu_2x],
"cpu_2x_div", CLK_IGNORE_UNUSED, SLCR_ARM_CLK_CTRL,
26, 0, &armclk_lock);
clk_prepare_enable(clks[cpu_2x]);
clk = clk_register_fixed_factor(NULL, "cpu_1x_div", "cpu_div", 0, 1,
4 + 2 * tmp);