diff options
Diffstat (limited to 'kernel/arch/arm/mach-imx/clk.c')
-rw-r--r-- | kernel/arch/arm/mach-imx/clk.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/kernel/arch/arm/mach-imx/clk.c b/kernel/arch/arm/mach-imx/clk.c deleted file mode 100644 index df12b5307..000000000 --- a/kernel/arch/arm/mach-imx/clk.c +++ /dev/null @@ -1,75 +0,0 @@ -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/of.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include "clk.h" - -DEFINE_SPINLOCK(imx_ccm_lock); - -void __init imx_check_clocks(struct clk *clks[], unsigned int count) -{ - unsigned i; - - for (i = 0; i < count; i++) - if (IS_ERR(clks[i])) - pr_err("i.MX clk %u: register failed with %ld\n", - i, PTR_ERR(clks[i])); -} - -static struct clk * __init imx_obtain_fixed_clock_from_dt(const char *name) -{ - struct of_phandle_args phandle; - struct clk *clk = ERR_PTR(-ENODEV); - char *path; - - path = kasprintf(GFP_KERNEL, "/clocks/%s", name); - if (!path) - return ERR_PTR(-ENOMEM); - - phandle.np = of_find_node_by_path(path); - kfree(path); - - if (phandle.np) { - clk = of_clk_get_from_provider(&phandle); - of_node_put(phandle.np); - } - return clk; -} - -struct clk * __init imx_obtain_fixed_clock( - const char *name, unsigned long rate) -{ - struct clk *clk; - - clk = imx_obtain_fixed_clock_from_dt(name); - if (IS_ERR(clk)) - clk = imx_clk_fixed(name, rate); - return clk; -} - -/* - * This fixups the register CCM_CSCMR1 write value. - * The write/read/divider values of the aclk_podf field - * of that register have the relationship described by - * the following table: - * - * write value read value divider - * 3b'000 3b'110 7 - * 3b'001 3b'111 8 - * 3b'010 3b'100 5 - * 3b'011 3b'101 6 - * 3b'100 3b'010 3 - * 3b'101 3b'011 4 - * 3b'110 3b'000 1 - * 3b'111 3b'001 2(default) - * - * That's why we do the xor operation below. - */ -#define CSCMR1_FIXUP 0x00600000 - -void imx_cscmr1_fixup(u32 *val) -{ - *val ^= CSCMR1_FIXUP; - return; -} |