diff options
| author | Thierry Reding <treding@nvidia.com> | 2014-07-29 12:17:53 +0400 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2014-11-26 11:43:23 +0300 |
| commit | 4f4f85fa0b96a35429ebb4bc278d70ae0f72113c (patch) | |
| tree | 566618d20763f01c8a8b66fa1fe5f621373c4123 /drivers/clk/tegra/clk-tegra30.c | |
| parent | 7f06dd61248a75668bbb39b6fcca6ff407745df8 (diff) | |
| download | linux-4f4f85fa0b96a35429ebb4bc278d70ae0f72113c.tar.xz | |
clk: tegra: Implement memory-controller clock
The memory controller clock runs either at half or the same frequency as
the EMC clock.
Reviewed-By: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra/clk-tegra30.c')
| -rw-r--r-- | drivers/clk/tegra/clk-tegra30.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c index 5bbacd01094f..4b9d8bd3d0bf 100644 --- a/drivers/clk/tegra/clk-tegra30.c +++ b/drivers/clk/tegra/clk-tegra30.c @@ -177,6 +177,7 @@ static unsigned long input_freq; static DEFINE_SPINLOCK(cml_lock); static DEFINE_SPINLOCK(pll_d_lock); +static DEFINE_SPINLOCK(emc_lock); #define TEGRA_INIT_DATA_MUX(_name, _parents, _offset, \ _clk_num, _gate_flags, _clk_id) \ @@ -1157,11 +1158,15 @@ static void __init tegra30_periph_clk_init(void) ARRAY_SIZE(mux_pllmcp_clkm), CLK_SET_RATE_NO_REPARENT, clk_base + CLK_SOURCE_EMC, - 30, 2, 0, NULL); + 30, 2, 0, &emc_lock); clk = tegra_clk_register_periph_gate("emc", "emc_mux", 0, clk_base, 0, 57, periph_clk_enb_refcnt); clks[TEGRA30_CLK_EMC] = clk; + clk = tegra_clk_register_mc("mc", "emc_mux", clk_base + CLK_SOURCE_EMC, + &emc_lock); + clks[TEGRA30_CLK_MC] = clk; + /* cml0 */ clk = clk_register_gate(NULL, "cml0", "pll_e", 0, clk_base + PLLE_AUX, 0, 0, &cml_lock); |