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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 20:31:16 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 20:31:16 +0200 |
| commit | 3f17ea6dea8ba5668873afa54628a91aaa3fb1c0 (patch) | |
| tree | afbeb2accd4c2199ddd705ae943995b143a0af02 /drivers/clk/zynq/clkc.c | |
| parent | Linux 3.15 (diff) | |
| parent | Merge tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/... (diff) | |
| download | linux-3f17ea6dea8ba5668873afa54628a91aaa3fb1c0.tar.xz linux-3f17ea6dea8ba5668873afa54628a91aaa3fb1c0.zip | |
Merge branch 'next' (accumulated 3.16 merge window patches) into master
Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.
* accumulated work in next: (6809 commits)
ufs: sb mutex merge + mutex_destroy
powerpc: update comments for generic idle conversion
cris: update comments for generic idle conversion
idle: remove cpu_idle() forward declarations
nbd: zero from and len fields in NBD_CMD_DISCONNECT.
mm: convert some level-less printks to pr_*
MAINTAINERS: adi-buildroot-devel is moderated
MAINTAINERS: add linux-api for review of API/ABI changes
mm/kmemleak-test.c: use pr_fmt for logging
fs/dlm/debug_fs.c: replace seq_printf by seq_puts
fs/dlm/lockspace.c: convert simple_str to kstr
fs/dlm/config.c: convert simple_str to kstr
mm: mark remap_file_pages() syscall as deprecated
mm: memcontrol: remove unnecessary memcg argument from soft limit functions
mm: memcontrol: clean up memcg zoneinfo lookup
mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
mm/mempool.c: update the kmemleak stack trace for mempool allocations
lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
mm: introduce kmemleak_update_trace()
mm/kmemleak.c: use %u to print ->checksum
...
Diffstat (limited to 'drivers/clk/zynq/clkc.c')
| -rw-r--r-- | drivers/clk/zynq/clkc.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c index 52c09afdcfb7..246cf1226eaa 100644 --- a/drivers/clk/zynq/clkc.c +++ b/drivers/clk/zynq/clkc.c @@ -53,6 +53,9 @@ static void __iomem *zynq_clkc_base; #define NUM_MIO_PINS 54 +#define DBG_CLK_CTRL_CLKACT_TRC BIT(0) +#define DBG_CLK_CTRL_CPU_1XCLKACT BIT(1) + enum zynq_clk { armpll, ddrpll, iopll, cpu_6or4x, cpu_3or2x, cpu_2x, cpu_1x, @@ -499,6 +502,15 @@ static void __init zynq_clk_setup(struct device_node *np) clk_output_name[cpu_1x], 0, SLCR_DBG_CLK_CTRL, 1, 0, &dbgclk_lock); + /* leave debug clocks in the state the bootloader set them up to */ + tmp = clk_readl(SLCR_DBG_CLK_CTRL); + if (tmp & DBG_CLK_CTRL_CLKACT_TRC) + if (clk_prepare_enable(clks[dbg_trc])) + pr_warn("%s: trace clk enable failed\n", __func__); + if (tmp & DBG_CLK_CTRL_CPU_1XCLKACT) + if (clk_prepare_enable(clks[dbg_apb])) + pr_warn("%s: debug APB clk enable failed\n", __func__); + /* One gated clock for all APER clocks. */ clks[dma] = clk_register_gate(NULL, clk_output_name[dma], clk_output_name[cpu_2x], 0, SLCR_APER_CLK_CTRL, 0, 0, |