/* * linux/include/asm-arm/arch-omap/uncompress.h * * Serial port stubs for kernel decompress status messages * * Initially based on: * linux-2.4.15-rmk1-dsplinux1.6/include/asm-arm/arch-omap1510/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/arch/serial.h> unsigned int system_rev; #define UART_OMAP_MDR1 0x08 /* mode definition register */ #define OMAP_ID_730 0x355F #define ID_MASK 0x7fff #define check_port(base, shift) ((base[UART_OMAP_MDR1 << shift] & 7) == 0) #define omap_get_id() ((*(volatile unsigned int *)(0xfffed404)) >> 12) & ID_MASK static void putc(int c) { volatile u8 * uart = 0; int shift = 2; #ifdef CONFIG_MACH_OMAP_PALMTE return; #endif #ifdef CONFIG_ARCH_OMAP #ifdef CONFIG_OMAP_LL_DEBUG_UART3 uart = (volatile u8 *)(OMAP_UART3_BASE); #elif defined(CONFIG_OMAP_LL_DEBUG_UART2) uart = (volatile u8 *)(OMAP_UART2_BASE); #else uart = (volatile u8 *)(OMAP_UART1_BASE); #endif #ifdef CONFIG_ARCH_OMAP1 /* Determine which serial port to use */ do { /* MMU is not on, so cpu_is_omapXXXX() won't work here */ unsigned int omap_id = omap_get_id(); if (omap_id == OMAP_ID_730) shift = 0; if (check_port(uart, shift)) break; /* Silent boot if no serial ports are enabled. */ return; } while (0); #endif /* CONFIG_ARCH_OMAP1 */ #endif /* * Now, xmit each character */ while (!(uart[UART_LSR << shift] & UART_LSR_THRE)) barrier(); uart[UART_TX << shift] = c; } static inline void flush(void) { } /* * nothing to do */ #define arch_decomp_setup() #define arch_decomp_wdog()