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| author | Arnd Bergmann <arnd@arndb.de> | 2012-11-15 17:06:24 +0100 | 
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-11-15 17:06:24 +0100 | 
| commit | 9265c6a186ca19a57ab6ddd0b0f3644f85c6f2f1 (patch) | |
| tree | d8c434ea98ee541ee17f4df87bb8e9020ce29b98 /arch/arm/mach-omap2/include/mach/uncompress.h | |
| parent | 49ea7fc094162fcaa83f5876b2090c816cc4498c (diff) | |
| parent | 6ba54ab4a49bbad736b0254aa6bdf0cb83013815 (diff) | |
| download | olio-linux-3.10-9265c6a186ca19a57ab6ddd0b0f3644f85c6f2f1.tar.xz olio-linux-3.10-9265c6a186ca19a57ab6ddd0b0f3644f85c6f2f1.zip  | |
Merge branch 'omap/headers4' into next/cleanup
Diffstat (limited to 'arch/arm/mach-omap2/include/mach/uncompress.h')
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/uncompress.h | 175 | 
1 files changed, 173 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/include/mach/uncompress.h b/arch/arm/mach-omap2/include/mach/uncompress.h index 78e0557bfd4..8e3546d3e04 100644 --- a/arch/arm/mach-omap2/include/mach/uncompress.h +++ b/arch/arm/mach-omap2/include/mach/uncompress.h @@ -1,5 +1,176 @@  /* - * arch/arm/mach-omap2/include/mach/uncompress.h + * arch/arm/plat-omap/include/mach/uncompress.h + * + * Serial port stubs for kernel decompress status messages + * + * Initially based on: + * linux-2.4.15-rmk1-dsplinux1.6/arch/arm/plat-omap/include/mach1510/uncompress.h + * Copyright (C) 2000 RidgeRun, Inc. + * Author: Greg Lonnon <glonnon@ridgerun.com> + * + * Rewritten by: + * Author: <source@mvista.com> + * 2004 (c) MontaVista Software, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied.   */ -#include <plat/uncompress.h> +#include <linux/types.h> +#include <linux/serial_reg.h> + +#include <asm/memory.h> +#include <asm/mach-types.h> + +#include <mach/serial.h> + +#define MDR1_MODE_MASK			0x07 + +volatile u8 *uart_base; +int uart_shift; + +/* + * Store the DEBUG_LL uart number into memory. + * See also debug-macro.S, and serial.c for related code. + */ +static void set_omap_uart_info(unsigned char port) +{ +	/* +	 * Get address of some.bss variable and round it down +	 * a la CONFIG_AUTO_ZRELADDR. +	 */ +	u32 ram_start = (u32)&uart_shift & 0xf8000000; +	u32 *uart_info = (u32 *)(ram_start + OMAP_UART_INFO_OFS); +	*uart_info = port; +} + +static void putc(int c) +{ +	if (!uart_base) +		return; + +	/* Check for UART 16x mode */ +	if ((uart_base[UART_OMAP_MDR1 << uart_shift] & MDR1_MODE_MASK) != 0) +		return; + +	while (!(uart_base[UART_LSR << uart_shift] & UART_LSR_THRE)) +		barrier(); +	uart_base[UART_TX << uart_shift] = c; +} + +static inline void flush(void) +{ +} + +/* + * Macros to configure UART1 and debug UART + */ +#define _DEBUG_LL_ENTRY(mach, dbg_uart, dbg_shft, dbg_id)		\ +	if (machine_is_##mach()) {					\ +		uart_base = (volatile u8 *)(dbg_uart);			\ +		uart_shift = (dbg_shft);				\ +		port = (dbg_id);					\ +		set_omap_uart_info(port);				\ +		break;							\ +	} + +#define DEBUG_LL_OMAP2(p, mach)						\ +	_DEBUG_LL_ENTRY(mach, OMAP2_UART##p##_BASE, OMAP_PORT_SHIFT,	\ +		OMAP2UART##p) + +#define DEBUG_LL_OMAP3(p, mach)						\ +	_DEBUG_LL_ENTRY(mach, OMAP3_UART##p##_BASE, OMAP_PORT_SHIFT,	\ +		OMAP3UART##p) + +#define DEBUG_LL_OMAP4(p, mach)						\ +	_DEBUG_LL_ENTRY(mach, OMAP4_UART##p##_BASE, OMAP_PORT_SHIFT,	\ +		OMAP4UART##p) + +#define DEBUG_LL_OMAP5(p, mach)						\ +	_DEBUG_LL_ENTRY(mach, OMAP5_UART##p##_BASE, OMAP_PORT_SHIFT,	\ +		OMAP5UART##p) +/* Zoom2/3 shift is different for UART1 and external port */ +#define DEBUG_LL_ZOOM(mach)						\ +	_DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART) + +#define DEBUG_LL_TI81XX(p, mach)					\ +	_DEBUG_LL_ENTRY(mach, TI81XX_UART##p##_BASE, OMAP_PORT_SHIFT,	\ +		TI81XXUART##p) + +#define DEBUG_LL_AM33XX(p, mach)					\ +	_DEBUG_LL_ENTRY(mach, AM33XX_UART##p##_BASE, OMAP_PORT_SHIFT,	\ +		AM33XXUART##p) + +static inline void arch_decomp_setup(void) +{ +	int port = 0; + +	/* +	 * Initialize the port based on the machine ID from the bootloader. +	 * Note that we're using macros here instead of switch statement +	 * as machine_is functions are optimized out for the boards that +	 * are not selected. +	 */ +	do { +		/* omap2 based boards using UART1 */ +		DEBUG_LL_OMAP2(1, omap_2430sdp); +		DEBUG_LL_OMAP2(1, omap_apollon); +		DEBUG_LL_OMAP2(1, omap_h4); + +		/* omap2 based boards using UART3 */ +		DEBUG_LL_OMAP2(3, nokia_n800); +		DEBUG_LL_OMAP2(3, nokia_n810); +		DEBUG_LL_OMAP2(3, nokia_n810_wimax); + +		/* omap3 based boards using UART1 */ +		DEBUG_LL_OMAP2(1, omap3evm); +		DEBUG_LL_OMAP3(1, omap_3430sdp); +		DEBUG_LL_OMAP3(1, omap_3630sdp); +		DEBUG_LL_OMAP3(1, omap3530_lv_som); +		DEBUG_LL_OMAP3(1, omap3_torpedo); + +		/* omap3 based boards using UART3 */ +		DEBUG_LL_OMAP3(3, cm_t35); +		DEBUG_LL_OMAP3(3, cm_t3517); +		DEBUG_LL_OMAP3(3, cm_t3730); +		DEBUG_LL_OMAP3(3, craneboard); +		DEBUG_LL_OMAP3(3, devkit8000); +		DEBUG_LL_OMAP3(3, igep0020); +		DEBUG_LL_OMAP3(3, igep0030); +		DEBUG_LL_OMAP3(3, nokia_rm680); +		DEBUG_LL_OMAP3(3, nokia_rm696); +		DEBUG_LL_OMAP3(3, nokia_rx51); +		DEBUG_LL_OMAP3(3, omap3517evm); +		DEBUG_LL_OMAP3(3, omap3_beagle); +		DEBUG_LL_OMAP3(3, omap3_pandora); +		DEBUG_LL_OMAP3(3, omap_ldp); +		DEBUG_LL_OMAP3(3, overo); +		DEBUG_LL_OMAP3(3, touchbook); + +		/* omap4 based boards using UART3 */ +		DEBUG_LL_OMAP4(3, omap_4430sdp); +		DEBUG_LL_OMAP4(3, omap4_panda); + +		/* omap5 based boards using UART3 */ +		DEBUG_LL_OMAP5(3, omap5_sevm); + +		/* zoom2/3 external uart */ +		DEBUG_LL_ZOOM(omap_zoom2); +		DEBUG_LL_ZOOM(omap_zoom3); + +		/* TI8168 base boards using UART3 */ +		DEBUG_LL_TI81XX(3, ti8168evm); + +		/* TI8148 base boards using UART1 */ +		DEBUG_LL_TI81XX(1, ti8148evm); + +		/* AM33XX base boards using UART1 */ +		DEBUG_LL_AM33XX(1, am335xevm); +	} while (0); +} + +/* + * nothing to do + */ +#define arch_decomp_wdog()  |