diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index 500530d1364a384859a6720c783ef1394545b983..c2b239857cc470b9176e6dff369b7b9376795091 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -771,4 +771,8 @@ void __init ti_clk_init_features(void) ti_clk_features.cm_idlest_val = OMAP24XX_CM_IDLEST_VAL; else if (cpu_is_omap34xx()) ti_clk_features.cm_idlest_val = OMAP34XX_CM_IDLEST_VAL; + + /* On OMAP3430 ES1.0, DPLL4 can't be re-programmed */ + if (omap_rev() == OMAP3430_REV_ES1_0) + ti_clk_features.flags |= TI_CLK_DPLL4_DENY_REPROGRAM; } diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 4592a2762592fef88c69be32aa1ce42cc6f18a4a..641337c6cde9a43fdfb24e589b9946464924ec01 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -234,6 +234,7 @@ struct ti_clk_features { }; #define TI_CLK_DPLL_HAS_FREQSEL (1 << 0) +#define TI_CLK_DPLL4_DENY_REPROGRAM (1 << 1) extern struct ti_clk_features ti_clk_features; diff --git a/arch/arm/mach-omap2/clock3xxx.c b/arch/arm/mach-omap2/clock3xxx.c index 0b02b4161d71f9806fd10acea364d3dbfe005505..9a2560181909c93e05842f01723699a5aba7024a 100644 --- a/arch/arm/mach-omap2/clock3xxx.c +++ b/arch/arm/mach-omap2/clock3xxx.c @@ -46,7 +46,7 @@ int omap3_dpll4_set_rate(struct clk_hw *hw, unsigned long rate, * on 3430ES1 prevents us from changing DPLL multipliers or dividers * on DPLL4. */ - if (omap_rev() == OMAP3430_REV_ES1_0) { + if (ti_clk_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; }