2466211e5d
It was possible for an unhandled interrupt to occur if there was incoming serial traffic during wakeup from suspend. This was caused by the code in arch-arm/mach-omap2/serial.c keeping interrupt enabled all the time, but not acking its interrupts. Applies on top of PM branch. Use the PM begin/end hooks to ensure that the "serial idle" interrupts are disabled during the suspend path. Also, since begin/end hooks are now used, use the suspend_state that is passed in the begin hook instead of the enter hook as per the platform_suspend_ops docs. Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/*
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* arch/arm/plat-omap/include/mach/serial.h
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*
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* Copyright (C) 2009 Texas Instruments
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* Addded OMAP4 support- Santosh Shilimkar <santosh.shilimkar@ti.com>
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __ASM_ARCH_SERIAL_H
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#define __ASM_ARCH_SERIAL_H
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#if defined(CONFIG_ARCH_OMAP1)
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/* OMAP1 serial ports */
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#define OMAP_UART1_BASE 0xfffb0000
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#define OMAP_UART2_BASE 0xfffb0800
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#define OMAP_UART3_BASE 0xfffb9800
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#define OMAP_MAX_NR_PORTS 3
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#elif defined(CONFIG_ARCH_OMAP2)
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/* OMAP2 serial ports */
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#define OMAP_UART1_BASE 0x4806a000
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#define OMAP_UART2_BASE 0x4806c000
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#define OMAP_UART3_BASE 0x4806e000
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#define OMAP_MAX_NR_PORTS 3
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#elif defined(CONFIG_ARCH_OMAP3)
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/* OMAP3 serial ports */
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#define OMAP_UART1_BASE 0x4806a000
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#define OMAP_UART2_BASE 0x4806c000
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#define OMAP_UART3_BASE 0x49020000
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#define OMAP_MAX_NR_PORTS 3
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#elif defined(CONFIG_ARCH_OMAP4)
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/* OMAP4 serial ports */
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#define OMAP_UART1_BASE 0x4806a000
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#define OMAP_UART2_BASE 0x4806c000
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#define OMAP_UART3_BASE 0x48020000
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#define OMAP_UART4_BASE 0x4806e000
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#define OMAP_MAX_NR_PORTS 4
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#endif
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#define OMAP1510_BASE_BAUD (12000000/16)
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#define OMAP16XX_BASE_BAUD (48000000/16)
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#define OMAP24XX_BASE_BAUD (48000000/16)
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#define is_omap_port(pt) ({int __ret = 0; \
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if ((pt)->port.mapbase == OMAP_UART1_BASE || \
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(pt)->port.mapbase == OMAP_UART2_BASE || \
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(pt)->port.mapbase == OMAP_UART3_BASE) \
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__ret = 1; \
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__ret; \
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})
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#ifndef __ASSEMBLER__
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extern void omap_serial_init(void);
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extern int omap_uart_can_sleep(void);
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extern void omap_uart_check_wakeup(void);
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extern void omap_uart_prepare_suspend(void);
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extern void omap_uart_prepare_idle(int num);
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extern void omap_uart_resume_idle(int num);
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extern void omap_uart_enable_irqs(int enable);
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#endif
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#endif
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