diff options
Diffstat (limited to 'arch/arm/mach-omap1/clock_data.c')
| -rw-r--r-- | arch/arm/mach-omap1/clock_data.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c index 9ff90a744a21..94699a82a734 100644 --- a/arch/arm/mach-omap1/clock_data.c +++ b/arch/arm/mach-omap1/clock_data.c @@ -25,6 +25,7 @@ #include <plat/clock.h> #include <plat/cpu.h> #include <plat/clkdev_omap.h> +#include <plat/sram.h> /* for omap_sram_reprogram_clock() */ #include <plat/usb.h> /* for OTG_BASE */ #include "clock.h" @@ -778,12 +779,14 @@ static void __init omap1_show_rates(void) arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10); } +u32 cpu_mask; + int __init omap1_clk_init(void) { struct omap_clk *c; const struct omap_clock_config *info; int crystal_type = 0; /* Default 12 MHz */ - u32 reg, cpu_mask; + u32 reg; #ifdef CONFIG_DEBUG_LL /* @@ -808,6 +811,8 @@ int __init omap1_clk_init(void) clk_preinit(c->lk.clk); cpu_mask = 0; + if (cpu_is_omap1710()) + cpu_mask |= CK_1710; if (cpu_is_omap16xx()) cpu_mask |= CK_16XX; if (cpu_is_omap1510()) @@ -931,17 +936,13 @@ void __init omap1_clk_late_init(void) { unsigned long rate = ck_dpll1.rate; - if (rate >= OMAP1_DPLL1_SANE_VALUE) - return; - - /* System booting at unusable rate, force reprogramming of DPLL1 */ - ck_dpll1_p->rate = 0; - /* Find the highest supported frequency and enable it */ if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) { pr_err("System frequencies not set, using default. Check your config.\n"); - omap_writew(0x2290, DPLL_CTL); - omap_writew(cpu_is_omap7xx() ? 0x2005 : 0x0005, ARM_CKCTL); + /* + * Reprogramming the DPLL is tricky, it must be done from SRAM. + */ + omap_sram_reprogram_clock(0x2290, 0x0005); ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE; } propagate_rate(&ck_dpll1); |