diff options
Diffstat (limited to 'arch/arm/mach-omap1')
| -rw-r--r-- | arch/arm/mach-omap1/Kconfig | 64 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/clock.c | 14 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/clock.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/clock_data.c | 19 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/opp.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/opp_data.c | 63 |
6 files changed, 49 insertions, 115 deletions
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig index 73f287d6429b..4f8d66f044e7 100644 --- a/arch/arm/mach-omap1/Kconfig +++ b/arch/arm/mach-omap1/Kconfig @@ -168,70 +168,6 @@ config MACH_OMAP_GENERIC custom OMAP boards. Say Y here if you have a custom board. -comment "OMAP CPU Speed" - depends on ARCH_OMAP1 - -config OMAP_ARM_216MHZ - bool "OMAP ARM 216 MHz CPU (1710 only)" - depends on ARCH_OMAP1 && ARCH_OMAP16XX - help - Enable 216 MHz clock for OMAP1710 CPU. If unsure, say N. - -config OMAP_ARM_195MHZ - bool "OMAP ARM 195 MHz CPU" - depends on ARCH_OMAP1 && (ARCH_OMAP730 || ARCH_OMAP850) - help - Enable 195MHz clock for OMAP CPU. If unsure, say N. - -config OMAP_ARM_192MHZ - bool "OMAP ARM 192 MHz CPU" - depends on ARCH_OMAP1 && ARCH_OMAP16XX - help - Enable 192MHz clock for OMAP CPU. If unsure, say N. - -config OMAP_ARM_182MHZ - bool "OMAP ARM 182 MHz CPU" - depends on ARCH_OMAP1 && (ARCH_OMAP730 || ARCH_OMAP850) - help - Enable 182MHz clock for OMAP CPU. If unsure, say N. - -config OMAP_ARM_168MHZ - bool "OMAP ARM 168 MHz CPU" - depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850) - help - Enable 168MHz clock for OMAP CPU. If unsure, say N. - -config OMAP_ARM_150MHZ - bool "OMAP ARM 150 MHz CPU" - depends on ARCH_OMAP1 && ARCH_OMAP15XX - help - Enable 150MHz clock for OMAP CPU. If unsure, say N. - -config OMAP_ARM_120MHZ - bool "OMAP ARM 120 MHz CPU" - depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850) - help - Enable 120MHz clock for OMAP CPU. If unsure, say N. - -config OMAP_ARM_96MHZ - bool "OMAP ARM 96 MHz CPU" - depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850) - help - Enable 96MHz clock for OMAP CPU. If unsure, say N. - -config OMAP_ARM_60MHZ - bool "OMAP ARM 60 MHz CPU" - depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850) - default y - help - Enable 60MHz clock for OMAP CPU. If unsure, say Y. - -config OMAP_ARM_30MHZ - bool "OMAP ARM 30 MHz CPU" - depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850) - help - Enable 30MHz clock for OMAP CPU. If unsure, say N. - endmenu endif diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c index 84ef70476b51..0c50df05d135 100644 --- a/arch/arm/mach-omap1/clock.c +++ b/arch/arm/mach-omap1/clock.c @@ -197,11 +197,10 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate) ref_rate = ck_ref_p->rate; for (ptr = omap1_rate_table; ptr->rate; ptr++) { - if (ptr->xtal != ref_rate) + if (!(ptr->flags & cpu_mask)) continue; - /* DPLL1 cannot be reprogrammed without risking system crash */ - if (likely(dpll1_rate != 0) && ptr->pll_rate != dpll1_rate) + if (ptr->xtal != ref_rate) continue; /* Can check only after xtal frequency check */ @@ -215,12 +214,8 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate) /* * In most cases we should not need to reprogram DPLL. * Reprogramming the DPLL is tricky, it must be done from SRAM. - * (on 730, bit 13 must always be 1) */ - if (cpu_is_omap7xx()) - omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val | 0x2000); - else - omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val); + omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val); /* XXX Do we need to recalculate the tree below DPLL1 at this point? */ ck_dpll1_p->rate = ptr->pll_rate; @@ -290,6 +285,9 @@ long omap1_round_to_table_rate(struct clk *clk, unsigned long rate) highest_rate = -EINVAL; for (ptr = omap1_rate_table; ptr->rate; ptr++) { + if (!(ptr->flags & cpu_mask)) + continue; + if (ptr->xtal != ref_rate) continue; diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h index 16b1423b454a..3d04f4f67676 100644 --- a/arch/arm/mach-omap1/clock.h +++ b/arch/arm/mach-omap1/clock.h @@ -111,4 +111,7 @@ extern const struct clkops clkops_dummy; extern const struct clkops clkops_uart_16xx; extern const struct clkops clkops_generic; +/* used for passing SoC type to omap1_{select,round_to}_table_rate() */ +extern u32 cpu_mask; + #endif 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); diff --git a/arch/arm/mach-omap1/opp.h b/arch/arm/mach-omap1/opp.h index 07074d79adce..79a683864a5c 100644 --- a/arch/arm/mach-omap1/opp.h +++ b/arch/arm/mach-omap1/opp.h @@ -21,6 +21,7 @@ struct mpu_rate { unsigned long pll_rate; __u16 ckctl_val; __u16 dpllctl_val; + u32 flags; }; extern struct mpu_rate omap1_rate_table[]; diff --git a/arch/arm/mach-omap1/opp_data.c b/arch/arm/mach-omap1/opp_data.c index 75a546514994..9cd4ddb51397 100644 --- a/arch/arm/mach-omap1/opp_data.c +++ b/arch/arm/mach-omap1/opp_data.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include <plat/clkdev_omap.h> #include "opp.h" /*------------------------------------------------------------------------- @@ -20,40 +21,34 @@ struct mpu_rate omap1_rate_table[] = { * NOTE: Comment order here is different from bits in CKCTL value: * armdiv, dspdiv, dspmmu, tcdiv, perdiv, lcddiv */ -#if defined(CONFIG_OMAP_ARM_216MHZ) - { 216000000, 12000000, 216000000, 0x050d, 0x2910 }, /* 1/1/2/2/2/8 */ -#endif -#if defined(CONFIG_OMAP_ARM_195MHZ) - { 195000000, 13000000, 195000000, 0x050e, 0x2790 }, /* 1/1/2/2/4/8 */ -#endif -#if defined(CONFIG_OMAP_ARM_192MHZ) - { 192000000, 19200000, 192000000, 0x050f, 0x2510 }, /* 1/1/2/2/8/8 */ - { 192000000, 12000000, 192000000, 0x050f, 0x2810 }, /* 1/1/2/2/8/8 */ - { 96000000, 12000000, 192000000, 0x055f, 0x2810 }, /* 2/2/2/2/8/8 */ - { 48000000, 12000000, 192000000, 0x0baf, 0x2810 }, /* 4/4/4/8/8/8 */ - { 24000000, 12000000, 192000000, 0x0fff, 0x2810 }, /* 8/8/8/8/8/8 */ -#endif -#if defined(CONFIG_OMAP_ARM_182MHZ) - { 182000000, 13000000, 182000000, 0x050e, 0x2710 }, /* 1/1/2/2/4/8 */ -#endif -#if defined(CONFIG_OMAP_ARM_168MHZ) - { 168000000, 12000000, 168000000, 0x010f, 0x2710 }, /* 1/1/1/2/8/8 */ -#endif -#if defined(CONFIG_OMAP_ARM_150MHZ) - { 150000000, 12000000, 150000000, 0x010a, 0x2cb0 }, /* 1/1/1/2/4/4 */ -#endif -#if defined(CONFIG_OMAP_ARM_120MHZ) - { 120000000, 12000000, 120000000, 0x010a, 0x2510 }, /* 1/1/1/2/4/4 */ -#endif -#if defined(CONFIG_OMAP_ARM_96MHZ) - { 96000000, 12000000, 96000000, 0x0005, 0x2410 }, /* 1/1/1/1/2/2 */ -#endif -#if defined(CONFIG_OMAP_ARM_60MHZ) - { 60000000, 12000000, 60000000, 0x0005, 0x2290 }, /* 1/1/1/1/2/2 */ -#endif -#if defined(CONFIG_OMAP_ARM_30MHZ) - { 30000000, 12000000, 60000000, 0x0555, 0x2290 }, /* 2/2/2/2/2/2 */ -#endif + { 216000000, 12000000, 216000000, 0x050d, 0x2910, /* 1/1/2/2/2/8 */ + CK_1710 }, + { 195000000, 13000000, 195000000, 0x050e, 0x2790, /* 1/1/2/2/4/8 */ + CK_7XX }, + { 192000000, 19200000, 192000000, 0x050f, 0x2510, /* 1/1/2/2/8/8 */ + CK_16XX }, + { 192000000, 12000000, 192000000, 0x050f, 0x2810, /* 1/1/2/2/8/8 */ + CK_16XX }, + { 96000000, 12000000, 192000000, 0x055f, 0x2810, /* 2/2/2/2/8/8 */ + CK_16XX }, + { 48000000, 12000000, 192000000, 0x0baf, 0x2810, /* 4/4/4/8/8/8 */ + CK_16XX }, + { 24000000, 12000000, 192000000, 0x0fff, 0x2810, /* 8/8/8/8/8/8 */ + CK_16XX }, + { 182000000, 13000000, 182000000, 0x050e, 0x2710, /* 1/1/2/2/4/8 */ + CK_7XX }, + { 168000000, 12000000, 168000000, 0x010f, 0x2710, /* 1/1/1/2/8/8 */ + CK_16XX|CK_7XX }, + { 150000000, 12000000, 150000000, 0x010a, 0x2cb0, /* 1/1/1/2/4/4 */ + CK_1510 }, + { 120000000, 12000000, 120000000, 0x010a, 0x2510, /* 1/1/1/2/4/4 */ + CK_16XX|CK_1510|CK_310|CK_7XX }, + { 96000000, 12000000, 96000000, 0x0005, 0x2410, /* 1/1/1/1/2/2 */ + CK_16XX|CK_1510|CK_310|CK_7XX }, + { 60000000, 12000000, 60000000, 0x0005, 0x2290, /* 1/1/1/1/2/2 */ + CK_16XX|CK_1510|CK_310|CK_7XX }, + { 30000000, 12000000, 60000000, 0x0555, 0x2290, /* 2/2/2/2/2/2 */ + CK_16XX|CK_1510|CK_310|CK_7XX }, { 0, 0, 0, 0, 0 }, }; |