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author | 2010-10-25 13:46:56 -0700 | |
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committer | 2010-10-25 13:46:56 -0700 | |
commit | 7b6181e06841f5ad15c4ff708b967b4db65a64de (patch) | |
tree | bdfcf5b74b692f76581156e452d268b64c795200 /arch/arm/plat-omap/common.c | |
parent | Merge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... (diff) | |
parent | omap: complete removal of machine_desc.io_pg_offst and .phys_io (diff) | |
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Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (163 commits)
omap: complete removal of machine_desc.io_pg_offst and .phys_io
omap: UART: fix wakeup registers for OMAP24xx UART2
omap: Fix spotty MMC voltages
ASoC: OMAP4: MCPDM: Remove unnecessary include of plat/control.h
serial: omap-serial: fix signess error
OMAP3: DMA: Errata i541: sDMA FIFO draining does not finish
omap: dma: Fix buffering disable bit setting for omap24xx
omap: serial: Fix the boot-up crash/reboot without CONFIG_PM
OMAP3: PM: fix scratchpad memory accesses for off-mode
omap4: pandaboard: enable the ehci port on pandaboard
omap4: pandaboard: Fix the init if CONFIG_MMC_OMAP_HS is not set
omap4: pandaboard: remove unused hsmmc definition
OMAP: McBSP: Remove null omap44xx ops comment
OMAP: McBSP: Swap CLKS source definition
OMAP: McBSP: Fix CLKR and FSR signal muxing
OMAP2+: clock: reduce the amount of standard debugging while disabling unused clocks
OMAP: control: move plat-omap/control.h to mach-omap2/control.h
OMAP: split plat-omap/common.c
OMAP: McBSP: implement functional clock switching via clock framework
OMAP: McBSP: implement McBSP CLKR and FSR signal muxing via mach-omap2/mcbsp.c
...
Fixed up trivial conflicts in arch/arm/mach-omap2/
{board-zoom-peripherals.c,devices.c} as per Tony
Diffstat (limited to 'arch/arm/plat-omap/common.c')
-rw-r--r-- | arch/arm/plat-omap/common.c | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 3008e7104487..221a675ebbae 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -11,38 +11,15 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/delay.h> -#include <linux/console.h> -#include <linux/serial.h> -#include <linux/tty.h> -#include <linux/serial_8250.h> -#include <linux/serial_reg.h> -#include <linux/clk.h> #include <linux/io.h> #include <linux/omapfb.h> -#include <mach/hardware.h> -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/mach/map.h> -#include <asm/setup.h> - #include <plat/common.h> #include <plat/board.h> -#include <plat/control.h> -#include <plat/mux.h> -#include <plat/fpga.h> -#include <plat/serial.h> #include <plat/vram.h> -#include <plat/clock.h> - -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) -# include "../mach-omap2/sdrc.h" -#endif #define NO_LENGTH_CHECK 0xffffffff @@ -88,270 +65,3 @@ void __init omap_reserve(void) omapfb_reserve_sdram_memblock(); omap_vram_reserve_sdram_memblock(); } - -/* - * 32KHz clocksource ... always available, on pretty most chips except - * OMAP 730 and 1510. Other timers could be used as clocksources, with - * higher resolution in free-running counter modes (e.g. 12 MHz xtal), - * but systems won't necessarily want to spend resources that way. - */ - -#define OMAP16XX_TIMER_32K_SYNCHRONIZED 0xfffbc410 - -#if !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX)) - -#include <linux/clocksource.h> - -/* - * offset_32k holds the init time counter value. It is then subtracted - * from every counter read to achieve a counter that counts time from the - * kernel boot (needed for sched_clock()). - */ -static u32 offset_32k __read_mostly; - -#ifdef CONFIG_ARCH_OMAP16XX -static cycle_t omap16xx_32k_read(struct clocksource *cs) -{ - return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED) - offset_32k; -} -#else -#define omap16xx_32k_read NULL -#endif - -#ifdef CONFIG_ARCH_OMAP2420 -static cycle_t omap2420_32k_read(struct clocksource *cs) -{ - return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10) - offset_32k; -} -#else -#define omap2420_32k_read NULL -#endif - -#ifdef CONFIG_ARCH_OMAP2430 -static cycle_t omap2430_32k_read(struct clocksource *cs) -{ - return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10) - offset_32k; -} -#else -#define omap2430_32k_read NULL -#endif - -#ifdef CONFIG_ARCH_OMAP3 -static cycle_t omap34xx_32k_read(struct clocksource *cs) -{ - return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10) - offset_32k; -} -#else -#define omap34xx_32k_read NULL -#endif - -#ifdef CONFIG_ARCH_OMAP4 -static cycle_t omap44xx_32k_read(struct clocksource *cs) -{ - return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10) - offset_32k; -} -#else -#define omap44xx_32k_read NULL -#endif - -/* - * Kernel assumes that sched_clock can be called early but may not have - * things ready yet. - */ -static cycle_t omap_32k_read_dummy(struct clocksource *cs) -{ - return 0; -} - -static struct clocksource clocksource_32k = { - .name = "32k_counter", - .rating = 250, - .read = omap_32k_read_dummy, - .mask = CLOCKSOURCE_MASK(32), - .shift = 10, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -/* - * Returns current time from boot in nsecs. It's OK for this to wrap - * around for now, as it's just a relative time stamp. - */ -unsigned long long sched_clock(void) -{ - return clocksource_cyc2ns(clocksource_32k.read(&clocksource_32k), - 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 - "%s: can't register clocksource!\n"; - - if (cpu_is_omap16xx() || cpu_class_is_omap2()) { - struct clk *sync_32k_ick; - - if (cpu_is_omap16xx()) - clocksource_32k.read = omap16xx_32k_read; - else if (cpu_is_omap2420()) - clocksource_32k.read = omap2420_32k_read; - else if (cpu_is_omap2430()) - clocksource_32k.read = omap2430_32k_read; - else if (cpu_is_omap34xx()) - clocksource_32k.read = omap34xx_32k_read; - else if (cpu_is_omap44xx()) - clocksource_32k.read = omap44xx_32k_read; - else - return -ENODEV; - - sync_32k_ick = clk_get(NULL, "omap_32ksync_ick"); - if (sync_32k_ick) - clk_enable(sync_32k_ick); - - clocksource_32k.mult = clocksource_hz2mult(32768, - clocksource_32k.shift); - - offset_32k = clocksource_32k.read(&clocksource_32k); - - if (clocksource_register(&clocksource_32k)) - printk(err, clocksource_32k.name); - } - return 0; -} -arch_initcall(omap_init_clocksource_32k); - -#endif /* !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX)) */ - -/* Global address base setup code */ - -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - -static void __init __omap2_set_globals(struct omap_globals *omap2_globals) -{ - omap2_set_globals_tap(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 - -#if defined(CONFIG_ARCH_OMAP2420) - -static struct omap_globals omap242x_globals = { - .class = OMAP242X_CLASS, - .tap = OMAP2_L4_IO_ADDRESS(0x48014000), - .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) -{ - __omap2_set_globals(&omap242x_globals); -} -#endif - -#if defined(CONFIG_ARCH_OMAP2430) - -static struct omap_globals omap243x_globals = { - .class = OMAP243X_CLASS, - .tap = OMAP2_L4_IO_ADDRESS(0x4900a000), - .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) -{ - __omap2_set_globals(&omap243x_globals); -} -#endif - -#if defined(CONFIG_ARCH_OMAP3) - -static struct omap_globals omap3_globals = { - .class = OMAP343X_CLASS, - .tap = OMAP2_L4_IO_ADDRESS(0x4830A000), - .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, - .uart4_phys = OMAP3_UART4_BASE, /* Only on 3630 */ -}; - -void __init omap2_set_globals_3xxx(void) -{ - __omap2_set_globals(&omap3_globals); -} - -void __init omap3_map_io(void) -{ - omap2_set_globals_3xxx(); - omap34xx_map_common_io(); -} -#endif - -#if defined(CONFIG_ARCH_OMAP4) -static struct omap_globals omap4_globals = { - .class = OMAP443X_CLASS, - .tap = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_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) -{ - 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 - |