diff options
author | Tony Lindgren <tony@atomide.com> | 2012-09-21 13:48:01 -0700 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2012-09-21 13:48:01 -0700 |
commit | 0c9de3c52d2baed6bc2ee44885adb418152c71c4 (patch) | |
tree | e19ab2c41ae47250fd614418022b32aa783aa563 /arch/arm/mach-omap2 | |
parent | 6bfc82ff589a00e5fbc12b958c649d703d273c86 (diff) | |
parent | 3c7c5dab44d6c8861bc86dab924353d8d40344f8 (diff) |
Merge branch 'for_3.7/omap5_arch_timer' of git://github.com/SantoshShilimkar/linux into devel-dt-arch-timer
Conflicts:
arch/arm/mach-omap2/timer.c
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r-- | arch/arm/mach-omap2/Kconfig | 8 | ||||
-rw-r--r-- | arch/arm/mach-omap2/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/clock33xx_data.c | 14 | ||||
-rw-r--r-- | arch/arm/mach-omap2/clockdomain2xxx_3xxx.c | 50 | ||||
-rw-r--r-- | arch/arm/mach-omap2/cm-regbits-34xx.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-omap2/omap-wakeupgen.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 15 | ||||
-rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 12 | ||||
-rw-r--r-- | arch/arm/mach-omap2/timer.c | 104 |
10 files changed, 187 insertions, 22 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index c1309495eeb..edc30b8b77e 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -25,6 +25,9 @@ config ARCH_OMAP2PLUS_TYPICAL config SOC_HAS_OMAP2_SDRC bool "OMAP2 SDRAM Controller support" +config SOC_HAS_REALTIME_COUNTER + bool "Real time free running counter" + config ARCH_OMAP2 bool "TI OMAP2" depends on ARCH_OMAP2PLUS @@ -71,6 +74,8 @@ config SOC_OMAP5 select ARM_GIC select HAVE_SMP select ARM_CPU_SUSPEND if PM + select SOC_HAS_REALTIME_COUNTER + select ARM_ARCH_TIMER comment "OMAP Core Type" depends on ARCH_OMAP2 @@ -233,10 +238,11 @@ config MACH_OMAP3_PANDORA select OMAP_PACKAGE_CBB select REGULATOR_FIXED_VOLTAGE if REGULATOR -config MACH_OMAP3_TOUCHBOOK +config MACH_TOUCHBOOK bool "OMAP3 Touch Book" depends on ARCH_OMAP3 default y + select OMAP_PACKAGE_CBB config MACH_OMAP_3430SDP bool "OMAP 3430 SDP board" diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index f6a24b3f9c4..34c2c7f59f0 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -255,7 +255,7 @@ obj-$(CONFIG_MACH_OMAP_3630SDP) += board-zoom-display.o obj-$(CONFIG_MACH_CM_T35) += board-cm-t35.o obj-$(CONFIG_MACH_CM_T3517) += board-cm-t3517.o obj-$(CONFIG_MACH_IGEP0020) += board-igep0020.o -obj-$(CONFIG_MACH_OMAP3_TOUCHBOOK) += board-omap3touchbook.o +obj-$(CONFIG_MACH_TOUCHBOOK) += board-omap3touchbook.o obj-$(CONFIG_MACH_OMAP_4430SDP) += board-4430sdp.o obj-$(CONFIG_MACH_OMAP4_PANDA) += board-omap4panda.o diff --git a/arch/arm/mach-omap2/clock33xx_data.c b/arch/arm/mach-omap2/clock33xx_data.c index 7aa5ecaee5a..8e06de665b1 100644 --- a/arch/arm/mach-omap2/clock33xx_data.c +++ b/arch/arm/mach-omap2/clock33xx_data.c @@ -1036,13 +1036,13 @@ static struct omap_clk am33xx_clks[] = { CLK(NULL, "mmu_fck", &mmu_fck, CK_AM33XX), CLK(NULL, "smartreflex0_fck", &smartreflex0_fck, CK_AM33XX), CLK(NULL, "smartreflex1_fck", &smartreflex1_fck, CK_AM33XX), - CLK(NULL, "gpt1_fck", &timer1_fck, CK_AM33XX), - CLK(NULL, "gpt2_fck", &timer2_fck, CK_AM33XX), - CLK(NULL, "gpt3_fck", &timer3_fck, CK_AM33XX), - CLK(NULL, "gpt4_fck", &timer4_fck, CK_AM33XX), - CLK(NULL, "gpt5_fck", &timer5_fck, CK_AM33XX), - CLK(NULL, "gpt6_fck", &timer6_fck, CK_AM33XX), - CLK(NULL, "gpt7_fck", &timer7_fck, CK_AM33XX), + CLK(NULL, "timer1_fck", &timer1_fck, CK_AM33XX), + CLK(NULL, "timer2_fck", &timer2_fck, CK_AM33XX), + CLK(NULL, "timer3_fck", &timer3_fck, CK_AM33XX), + CLK(NULL, "timer4_fck", &timer4_fck, CK_AM33XX), + CLK(NULL, "timer5_fck", &timer5_fck, CK_AM33XX), + CLK(NULL, "timer6_fck", &timer6_fck, CK_AM33XX), + CLK(NULL, "timer7_fck", &timer7_fck, CK_AM33XX), CLK(NULL, "usbotg_fck", &usbotg_fck, CK_AM33XX), CLK(NULL, "ieee5000_fck", &ieee5000_fck, CK_AM33XX), CLK(NULL, "wdt1_fck", &wdt1_fck, CK_AM33XX), diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c index a0d68dbecfa..f99e65cfb86 100644 --- a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c +++ b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c @@ -241,6 +241,52 @@ static void omap3_clkdm_deny_idle(struct clockdomain *clkdm) _clkdm_del_autodeps(clkdm); } +static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + _disable_hwsup(clkdm); + _clkdm_add_autodeps(clkdm); + _enable_hwsup(clkdm); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap3_clkdm_wakeup(clkdm); + } + + return 0; +} + +static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + _disable_hwsup(clkdm); + _clkdm_del_autodeps(clkdm); + _enable_hwsup(clkdm); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap3_clkdm_sleep(clkdm); + } + + return 0; +} + struct clkdm_ops omap2_clkdm_operations = { .clkdm_add_wkdep = omap2_clkdm_add_wkdep, .clkdm_del_wkdep = omap2_clkdm_del_wkdep, @@ -267,6 +313,6 @@ struct clkdm_ops omap3_clkdm_operations = { .clkdm_wakeup = omap3_clkdm_wakeup, .clkdm_allow_idle = omap3_clkdm_allow_idle, .clkdm_deny_idle = omap3_clkdm_deny_idle, - .clkdm_clk_enable = omap2_clkdm_clk_enable, - .clkdm_clk_disable = omap2_clkdm_clk_disable, + .clkdm_clk_enable = omap3xxx_clkdm_clk_enable, + .clkdm_clk_disable = omap3xxx_clkdm_clk_disable, }; diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h index 766338fe4d3..975f6bda0e0 100644 --- a/arch/arm/mach-omap2/cm-regbits-34xx.h +++ b/arch/arm/mach-omap2/cm-regbits-34xx.h @@ -67,6 +67,7 @@ #define OMAP3430_EN_IVA2_DPLL_MASK (0x7 << 0) /* CM_IDLEST_IVA2 */ +#define OMAP3430_ST_IVA2_SHIFT 0 #define OMAP3430_ST_IVA2_MASK (1 << 0) /* CM_IDLEST_PLL_IVA2 */ diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c index b54427dec2a..ecaad7d371e 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.c +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -47,7 +47,7 @@ static void __iomem *wakeupgen_base; static void __iomem *sar_base; static DEFINE_SPINLOCK(wakeupgen_lock); -static unsigned int irq_target_cpu[NR_IRQS]; +static unsigned int irq_target_cpu[MAX_IRQS]; static unsigned int irq_banks = MAX_NR_REG_BANKS; static unsigned int max_irqs = MAX_IRQS; static unsigned int omap_secure_apis; diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 4c6b5a77405..4a810f6c4c0 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1889,6 +1889,7 @@ static int _enable(struct omap_hwmod *oh) _enable_sysc(oh); } } else { + _omap4_disable_module(oh); _disable_clocks(oh); pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n", oh->name, r); diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 75fbbac1392..8fec2cee3e1 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -100,9 +100,9 @@ static struct omap_hwmod omap3xxx_mpu_hwmod = { /* IVA2 (IVA2) */ static struct omap_hwmod_rst_info omap3xxx_iva_resets[] = { - { .name = "logic", .rst_shift = 0 }, - { .name = "seq0", .rst_shift = 1 }, - { .name = "seq1", .rst_shift = 2 }, + { .name = "logic", .rst_shift = 0, .st_shift = 8 }, + { .name = "seq0", .rst_shift = 1, .st_shift = 9 }, + { .name = "seq1", .rst_shift = 2, .st_shift = 10 }, }; static struct omap_hwmod omap3xxx_iva_hwmod = { @@ -112,6 +112,15 @@ static struct omap_hwmod omap3xxx_iva_hwmod = { .rst_lines = omap3xxx_iva_resets, .rst_lines_cnt = ARRAY_SIZE(omap3xxx_iva_resets), .main_clk = "iva2_ck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_IVA2_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_IVA2_SHIFT, + } + }, }; /* timer class */ diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index b95244b76a1..110be87cd99 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -4209,7 +4209,7 @@ static struct omap_hwmod_ocp_if omap44xx_dsp__iva = { }; /* dsp -> sl2if */ -static struct omap_hwmod_ocp_if omap44xx_dsp__sl2if = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_dsp__sl2if = { .master = &omap44xx_dsp_hwmod, .slave = &omap44xx_sl2if_hwmod, .clk = "dpll_iva_m5x2_ck", @@ -4827,7 +4827,7 @@ static struct omap_hwmod_ocp_if omap44xx_l3_main_2__iss = { }; /* iva -> sl2if */ -static struct omap_hwmod_ocp_if omap44xx_iva__sl2if = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_iva__sl2if = { .master = &omap44xx_iva_hwmod, .slave = &omap44xx_sl2if_hwmod, .clk = "dpll_iva_m5x2_ck", @@ -5361,7 +5361,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_wkup__scrm = { }; /* l3_main_2 -> sl2if */ -static struct omap_hwmod_ocp_if omap44xx_l3_main_2__sl2if = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l3_main_2__sl2if = { .master = &omap44xx_l3_main_2_hwmod, .slave = &omap44xx_sl2if_hwmod, .clk = "l3_div_ck", @@ -6031,7 +6031,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_abe__dmic, &omap44xx_l4_abe__dmic_dma, &omap44xx_dsp__iva, - &omap44xx_dsp__sl2if, + /* &omap44xx_dsp__sl2if, */ &omap44xx_l4_cfg__dsp, &omap44xx_l3_main_2__dss, &omap44xx_l4_per__dss, @@ -6067,7 +6067,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_per__i2c4, &omap44xx_l3_main_2__ipu, &omap44xx_l3_main_2__iss, - &omap44xx_iva__sl2if, + /* &omap44xx_iva__sl2if, */ &omap44xx_l3_main_2__iva, &omap44xx_l4_wkup__kbd, &omap44xx_l4_cfg__mailbox, @@ -6098,7 +6098,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_cfg__cm_core, &omap44xx_l4_wkup__prm, &omap44xx_l4_wkup__scrm, - &omap44xx_l3_main_2__sl2if, + /* &omap44xx_l3_main_2__sl2if, */ &omap44xx_l4_abe__slimbus1, &omap44xx_l4_abe__slimbus1_dma, &omap44xx_l4_per__slimbus2, diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index e2084facca5..a9c9b3dbc82 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -42,6 +42,7 @@ #include <asm/smp_twd.h> #include <asm/sched_clock.h> +#include <asm/arch_timer.h> #include <plat/omap_hwmod.h> #include <plat/omap_device.h> #include <plat/dmtimer.h> @@ -72,6 +73,11 @@ #define OMAP3_SECURE_TIMER 1 #endif +#define REALTIME_COUNTER_BASE 0x48243200 +#define INCREMENTER_NUMERATOR_OFFSET 0x10 +#define INCREMENTER_DENUMERATOR_RELOAD_OFFSET 0x14 +#define NUMERATOR_DENUMERATOR_MASK 0xfffff000 + /* Clockevent code */ static struct omap_dm_timer clkev; @@ -263,6 +269,7 @@ static u32 notrace dmtimer_read_sched_clock(void) return 0; } +#ifdef CONFIG_OMAP_32K_TIMER /* Setup free-running counter for clocksource */ static int __init omap2_sync32k_clocksource_init(void) { @@ -302,6 +309,12 @@ static int __init omap2_sync32k_clocksource_init(void) return ret; } +#else +static inline int omap2_sync32k_clocksource_init(void) +{ + return -ENODEV; +} +#endif static void __init omap2_gptimer_clocksource_init(int gptimer_id, const char *fck_source) @@ -342,6 +355,84 @@ static void __init omap2_clocksource_init(int gptimer_id, omap2_gptimer_clocksource_init(gptimer_id, fck_source); } +#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER +/* + * The realtime counter also called master counter, is a free-running + * counter, which is related to real time. It produces the count used + * by the CPU local timer peripherals in the MPU cluster. The timer counts + * at a rate of 6.144 MHz. Because the device operates on different clocks + * in different power modes, the master counter shifts operation between + * clocks, adjusting the increment per clock in hardware accordingly to + * maintain a constant count rate. + */ +static void __init realtime_counter_init(void) +{ + void __iomem *base; + static struct clk *sys_clk; + unsigned long rate; + unsigned int reg, num, den; + + base = ioremap(REALTIME_COUNTER_BASE, SZ_32); + if (!base) { + pr_err("%s: ioremap failed\n", __func__); + return; + } + sys_clk = clk_get(NULL, "sys_clkin_ck"); + if (!sys_clk) { + pr_err("%s: failed to get system clock handle\n", __func__); + iounmap(base); + return; + } + + rate = clk_get_rate(sys_clk); + /* Numerator/denumerator values refer TRM Realtime Counter section */ + switch (rate) { + case 1200000: + num = 64; + den = 125; + break; + case 1300000: + num = 768; + den = 1625; + break; + case 19200000: + num = 8; + den = 25; + break; + case 2600000: + num = 384; + den = 1625; + break; + case 2700000: + num = 256; + den = 1125; + break; + case 38400000: + default: + /* Program it for 38.4 MHz */ + num = 4; + den = 25; + break; + } + + /* Program numerator and denumerator registers */ + reg = __raw_readl(base + INCREMENTER_NUMERATOR_OFFSET) & + NUMERATOR_DENUMERATOR_MASK; + reg |= num; + __raw_writel(reg, base + INCREMENTER_NUMERATOR_OFFSET); + + reg = __raw_readl(base + INCREMENTER_NUMERATOR_OFFSET) & + NUMERATOR_DENUMERATOR_MASK; + reg |= den; + __raw_writel(reg, base + INCREMENTER_DENUMERATOR_RELOAD_OFFSET); + + iounmap(base); +} +#else +static inline void __init realtime_counter_init(void) +{} +#endif + #define OMAP_SYS_TIMER_INIT(name, clkev_nr, clkev_src, \ clksrc_nr, clksrc_src) \ static void __init omap##name##_timer_init(void) \ @@ -403,7 +494,18 @@ OMAP_SYS_TIMER(4) #endif #ifdef CONFIG_SOC_OMAP5 -OMAP_SYS_TIMER_INIT(5, 1, OMAP4_CLKEV_SOURCE, 2, OMAP4_MPU_SOURCE) +static void __init omap5_timer_init(void) +{ + int err; + + omap2_gp_clockevent_init(1, OMAP4_CLKEV_SOURCE); + omap2_clocksource_init(2, OMAP4_MPU_SOURCE); + realtime_counter_init(); + + err = arch_timer_of_register(); + if (err) + pr_err("%s: arch_timer_register failed %d\n", __func__, err); +} OMAP_SYS_TIMER(5) #endif |