Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/arm/mach-omap1/include/mach/uncompress.h
Назад
/* * 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 <linux/types.h> #include <linux/serial_reg.h> #include <asm/memory.h> #include <asm/mach-types.h> #include "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 inline 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_OMAP7XX(p, mach) \ _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP7XX_PORT_SHIFT, \ OMAP1UART##p) #define DEBUG_LL_OMAP1(p, mach) \ _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP_PORT_SHIFT, \ OMAP1UART##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 { /* omap7xx/8xx based boards using UART1 with shift 0 */ DEBUG_LL_OMAP7XX(1, herald); DEBUG_LL_OMAP7XX(1, omap_perseus2); /* omap15xx/16xx based boards using UART1 */ DEBUG_LL_OMAP1(1, ams_delta); DEBUG_LL_OMAP1(1, nokia770); DEBUG_LL_OMAP1(1, omap_h2); DEBUG_LL_OMAP1(1, omap_h3); DEBUG_LL_OMAP1(1, omap_innovator); DEBUG_LL_OMAP1(1, omap_osk); DEBUG_LL_OMAP1(1, omap_palmte); DEBUG_LL_OMAP1(1, omap_palmz71); /* omap15xx/16xx based boards using UART2 */ DEBUG_LL_OMAP1(2, omap_palmtt); /* omap15xx/16xx based boards using UART3 */ DEBUG_LL_OMAP1(3, sx1); } while (0); }
| ver. 1.4 |
Github
|
.
| PHP 7.4.3-4ubuntu2.24 | Генерация страницы: 0 |
proxy
|
phpinfo
|
Настройка