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| author | Ingo Molnar <mingo@kernel.org> | 2017-11-07 12:30:18 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-07 12:30:18 +0300 |
| commit | 15bcdc9477b03eb035052412c3a087e11e855e76 (patch) | |
| tree | e1e3c1f2b89e3a705d1737d61a4d8a9394a1930e /arch/arc/plat-hsdk/platform.c | |
| parent | 340b5319c98eb14f7a70947a38e17d06f5beea88 (diff) | |
| parent | e4880bc5dfb1f02b152e62a894b5c6f3e995b3cf (diff) | |
| download | linux-15bcdc9477b03eb035052412c3a087e11e855e76.tar.xz | |
Merge branch 'linus' into perf/core, to fix conflicts
Conflicts:
tools/perf/arch/arm/annotate/instructions.c
tools/perf/arch/arm64/annotate/instructions.c
tools/perf/arch/powerpc/annotate/instructions.c
tools/perf/arch/s390/annotate/instructions.c
tools/perf/arch/x86/tests/intel-cqm.c
tools/perf/ui/tui/progress.c
tools/perf/util/zlib.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arc/plat-hsdk/platform.c')
| -rw-r--r-- | arch/arc/plat-hsdk/platform.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arc/plat-hsdk/platform.c b/arch/arc/plat-hsdk/platform.c index 744e62e58788..fd0ae5e38639 100644 --- a/arch/arc/plat-hsdk/platform.c +++ b/arch/arc/plat-hsdk/platform.c @@ -74,6 +74,10 @@ static void __init hsdk_set_cpu_freq_1ghz(void) pr_err("Failed to setup CPU frequency to 1GHz!"); } +#define SDIO_BASE (ARC_PERIPHERAL_BASE + 0xA000) +#define SDIO_UHS_REG_EXT (SDIO_BASE + 0x108) +#define SDIO_UHS_REG_EXT_DIV_2 (2 << 30) + static void __init hsdk_init_early(void) { /* @@ -90,6 +94,12 @@ static void __init hsdk_init_early(void) writel(1, (void __iomem *) CREG_PAE_UPDATE); /* + * Switch SDIO external ciu clock divider from default div-by-8 to + * minimum possible div-by-2. + */ + iowrite32(SDIO_UHS_REG_EXT_DIV_2, (void __iomem *) SDIO_UHS_REG_EXT); + + /* * Setup CPU frequency to 1GHz. * TODO: remove it after smart hsdk pll driver will be introduced. */ |