diff options
Diffstat (limited to 'arch/arm/mach-omap2/clock3xxx.c')
-rw-r--r-- | arch/arm/mach-omap2/clock3xxx.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/arch/arm/mach-omap2/clock3xxx.c b/arch/arm/mach-omap2/clock3xxx.c index 4bd61222aa33..0b0e3a8777d3 100644 --- a/arch/arm/mach-omap2/clock3xxx.c +++ b/arch/arm/mach-omap2/clock3xxx.c @@ -29,82 +29,5 @@ #include "cm2xxx_3xxx.h" #include "cm-regbits-34xx.h" -/* - * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks - * that are sourced by DPLL5, and both of these require this clock - * to be at 120 MHz for proper operation. - */ -#define DPLL5_FREQ_FOR_USBHOST 120000000 - /* needed by omap3_core_dpll_m2_set_rate() */ struct clk *sdrc_ick_p, *arm_fck_p; - -/** - * omap3_dpll4_set_rate - set rate for omap3 per-dpll - * @hw: clock to change - * @rate: target rate for clock - * @parent_rate: rate of the parent clock - * - * Check if the current SoC supports the per-dpll reprogram operation - * or not, and then do the rate change if supported. Returns -EINVAL - * if not supported, 0 for success, and potential error codes from the - * clock rate change. - */ -int omap3_dpll4_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - /* - * According to the 12-5 CDP code from TI, "Limitation 2.5" - * on 3430ES1 prevents us from changing DPLL multipliers or dividers - * on DPLL4. - */ - if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) { - pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n"); - return -EINVAL; - } - - return omap3_noncore_dpll_set_rate(hw, rate, parent_rate); -} - -/** - * omap3_dpll4_set_rate_and_parent - set rate and parent for omap3 per-dpll - * @hw: clock to change - * @rate: target rate for clock - * @parent_rate: rate of the parent clock - * @index: parent index, 0 - reference clock, 1 - bypass clock - * - * Check if the current SoC support the per-dpll reprogram operation - * or not, and then do the rate + parent change if supported. Returns - * -EINVAL if not supported, 0 for success, and potential error codes - * from the clock rate change. - */ -int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate, u8 index) -{ - if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) { - pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n"); - return -EINVAL; - } - - return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate, - index); -} - -void __init omap3_clk_lock_dpll5(void) -{ - struct clk *dpll5_clk; - struct clk *dpll5_m2_clk; - - dpll5_clk = clk_get(NULL, "dpll5_ck"); - clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST); - clk_prepare_enable(dpll5_clk); - - /* Program dpll5_m2_clk divider for no division */ - dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck"); - clk_prepare_enable(dpll5_m2_clk); - clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST); - - clk_disable_unprepare(dpll5_m2_clk); - clk_disable_unprepare(dpll5_clk); - return; -} |