diff options
Diffstat (limited to 'arch/arm/plat-omap/common.c')
| -rw-r--r-- | arch/arm/plat-omap/common.c | 95 |
1 files changed, 72 insertions, 23 deletions
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index bf1eaf3a27d..088c1a03b94 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -34,6 +34,7 @@ #include <plat/control.h> #include <plat/mux.h> #include <plat/fpga.h> +#include <plat/serial.h> #include <plat/clock.h> @@ -126,7 +127,7 @@ static cycle_t omap2430_32k_read(struct clocksource *cs) #define omap2430_32k_read NULL #endif -#ifdef CONFIG_ARCH_OMAP34XX +#ifdef CONFIG_ARCH_OMAP3 static cycle_t omap34xx_32k_read(struct clocksource *cs) { return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10); @@ -172,6 +173,32 @@ unsigned long long sched_clock(void) clocksource_32k.mult, clocksource_32k.shift); } +/** + * read_persistent_clock - Return time from a persistent clock. + * + * Reads the time from a source which isn't disabled during PM, the + * 32k sync timer. Convert the cycles elapsed since last read into + * nsecs and adds to a monotonically increasing timespec. + */ +static struct timespec persistent_ts; +static cycles_t cycles, last_cycles; +void read_persistent_clock(struct timespec *ts) +{ + unsigned long long nsecs; + cycles_t delta; + struct timespec *tsp = &persistent_ts; + + last_cycles = cycles; + cycles = clocksource_32k.read(&clocksource_32k); + delta = cycles - last_cycles; + + nsecs = clocksource_cyc2ns(delta, + clocksource_32k.mult, clocksource_32k.shift); + + timespec_add_ns(tsp, nsecs); + *ts = *tsp; +} + static int __init omap_init_clocksource_32k(void) { static char err[] __initdata = KERN_ERR @@ -219,6 +246,7 @@ static void __init __omap2_set_globals(struct omap_globals *omap2_globals) omap2_set_globals_sdrc(omap2_globals); omap2_set_globals_control(omap2_globals); omap2_set_globals_prcm(omap2_globals); + omap2_set_globals_uart(omap2_globals); } #endif @@ -228,11 +256,14 @@ static void __init __omap2_set_globals(struct omap_globals *omap2_globals) static struct omap_globals omap242x_globals = { .class = OMAP242X_CLASS, .tap = OMAP2_L4_IO_ADDRESS(0x48014000), - .sdrc = OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE), - .sms = OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE), - .ctrl = OMAP2_L4_IO_ADDRESS(OMAP2420_CTRL_BASE), - .prm = OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE), - .cm = OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE), + .sdrc = OMAP2420_SDRC_BASE, + .sms = OMAP2420_SMS_BASE, + .ctrl = OMAP2420_CTRL_BASE, + .prm = OMAP2420_PRM_BASE, + .cm = OMAP2420_CM_BASE, + .uart1_phys = OMAP2_UART1_BASE, + .uart2_phys = OMAP2_UART2_BASE, + .uart3_phys = OMAP2_UART3_BASE, }; void __init omap2_set_globals_242x(void) @@ -246,11 +277,14 @@ void __init omap2_set_globals_242x(void) static struct omap_globals omap243x_globals = { .class = OMAP243X_CLASS, .tap = OMAP2_L4_IO_ADDRESS(0x4900a000), - .sdrc = OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE), - .sms = OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE), - .ctrl = OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE), - .prm = OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE), - .cm = OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE), + .sdrc = OMAP243X_SDRC_BASE, + .sms = OMAP243X_SMS_BASE, + .ctrl = OMAP243X_CTRL_BASE, + .prm = OMAP2430_PRM_BASE, + .cm = OMAP2430_CM_BASE, + .uart1_phys = OMAP2_UART1_BASE, + .uart2_phys = OMAP2_UART2_BASE, + .uart3_phys = OMAP2_UART3_BASE, }; void __init omap2_set_globals_243x(void) @@ -259,21 +293,31 @@ void __init omap2_set_globals_243x(void) } #endif -#if defined(CONFIG_ARCH_OMAP3430) +#if defined(CONFIG_ARCH_OMAP3) -static struct omap_globals omap343x_globals = { +static struct omap_globals omap3_globals = { .class = OMAP343X_CLASS, .tap = OMAP2_L4_IO_ADDRESS(0x4830A000), - .sdrc = OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE), - .sms = OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE), - .ctrl = OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE), - .prm = OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE), - .cm = OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), + .sdrc = OMAP343X_SDRC_BASE, + .sms = OMAP343X_SMS_BASE, + .ctrl = OMAP343X_CTRL_BASE, + .prm = OMAP3430_PRM_BASE, + .cm = OMAP3430_CM_BASE, + .uart1_phys = OMAP3_UART1_BASE, + .uart2_phys = OMAP3_UART2_BASE, + .uart3_phys = OMAP3_UART3_BASE, }; void __init omap2_set_globals_343x(void) { - __omap2_set_globals(&omap343x_globals); + __omap2_set_globals(&omap3_globals); +} + +void __init omap2_set_globals_36xx(void) +{ + omap3_globals.uart4_phys = OMAP3_UART4_BASE; + + __omap2_set_globals(&omap3_globals); } #endif @@ -281,10 +325,14 @@ void __init omap2_set_globals_343x(void) static struct omap_globals omap4_globals = { .class = OMAP443X_CLASS, .tap = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE), - .ctrl = OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE), - .prm = OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE), - .cm = OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE), - .cm2 = OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE), + .ctrl = OMAP443X_CTRL_BASE, + .prm = OMAP4430_PRM_BASE, + .cm = OMAP4430_CM_BASE, + .cm2 = OMAP4430_CM2_BASE, + .uart1_phys = OMAP4_UART1_BASE, + .uart2_phys = OMAP4_UART2_BASE, + .uart3_phys = OMAP4_UART3_BASE, + .uart4_phys = OMAP4_UART4_BASE, }; void __init omap2_set_globals_443x(void) @@ -292,6 +340,7 @@ void __init omap2_set_globals_443x(void) omap2_set_globals_tap(&omap4_globals); omap2_set_globals_control(&omap4_globals); omap2_set_globals_prcm(&omap4_globals); + omap2_set_globals_uart(&omap4_globals); } #endif |