/* * 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 * * Rewritten by: * Author: * 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 #include #include #include #include #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) { *(volatile u32 *)OMAP_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_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) #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) /* 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_TI816X(p, mach) \ _DEBUG_LL_ENTRY(mach, TI816X_UART##p##_BASE, OMAP_PORT_SHIFT, \ TI816XUART##p) static inline void __arch_decomp_setup(unsigned long arch_id) { 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); /* omap2 based boards using UART1 */ DEBUG_LL_OMAP2(1, omap2evm); 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, 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_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); /* zoom2/3 external uart */ DEBUG_LL_ZOOM(omap_zoom2); DEBUG_LL_ZOOM(omap_zoom3); /* TI8168 base boards using UART3 */ DEBUG_LL_TI816X(3, ti8168evm); } while (0); } #define arch_decomp_setup() __arch_decomp_setup(arch_id) /* * nothing to do */ #define arch_decomp_wdog()