| /* |
| * 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 <plat/serial.h> |
| |
| #define MDR1_MODE_MASK 0x07 |
| |
| static volatile u8 *uart_base; |
| static 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) |
| |
| 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); |
| |
| /* omap3 based boards using UART3 */ |
| DEBUG_LL_OMAP3(3, cm_t35); |
| DEBUG_LL_OMAP3(3, igep0020); |
| 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); |
| |
| } while (0); |
| } |
| |
| #define arch_decomp_setup() __arch_decomp_setup(arch_id) |
| |
| /* |
| * nothing to do |
| */ |
| #define arch_decomp_wdog() |