diff options
Diffstat (limited to 'arch/arm/mach-omap2/include/mach')
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/debug-macro.S | 165 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/serial.h | 37 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/uncompress.h | 176 |
3 files changed, 0 insertions, 378 deletions
diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S deleted file mode 100644 index cfaed13d0040..000000000000 --- a/arch/arm/mach-omap2/include/mach/debug-macro.S +++ /dev/null @@ -1,165 +0,0 @@ -/* arch/arm/mach-omap2/include/mach/debug-macro.S - * - * Debugging macro include header - * - * Copyright (C) 1994-1999 Russell King - * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * -*/ - -#include <linux/serial_reg.h> - -#include <mach/serial.h> - -#define UART_OFFSET(addr) ((addr) & 0x00ffffff) - - .pushsection .data -omap_uart_phys: .word 0 -omap_uart_virt: .word 0 -omap_uart_lsr: .word 0 - .popsection - - /* - * Note that this code won't work if the bootloader passes - * a wrong machine ID number in r1. To debug, just hardcode - * the desired UART phys and virt addresses temporarily into - * the omap_uart_phys and omap_uart_virt above. - */ - .macro addruart, rp, rv, tmp - - /* Use omap_uart_phys/virt if already configured */ -10: adr \rp, 99f @ get effective addr of 99f - ldr \rv, [\rp] @ get absolute addr of 99f - sub \rv, \rv, \rp @ offset between the two - ldr \rp, [\rp, #4] @ abs addr of omap_uart_phys - sub \tmp, \rp, \rv @ make it effective - ldr \rp, [\tmp, #0] @ omap_uart_phys - ldr \rv, [\tmp, #4] @ omap_uart_virt - cmp \rp, #0 @ is port configured? - cmpne \rv, #0 - bne 100f @ already configured - - /* Check the debug UART configuration set in uncompress.h */ - mov \rp, pc - ldr \rv, =OMAP_UART_INFO_OFS - and \rp, \rp, #0xff000000 - ldr \rp, [\rp, \rv] - - /* Select the UART to use based on the UART1 scratchpad value */ - cmp \rp, #0 @ no port configured? - beq 21f @ if none, try to use UART1 - cmp \rp, #OMAP2UART1 @ OMAP2/3/4UART1 - beq 21f @ configure OMAP2/3/4UART1 - cmp \rp, #OMAP2UART2 @ OMAP2/3/4UART2 - beq 22f @ configure OMAP2/3/4UART2 - cmp \rp, #OMAP2UART3 @ only on 24xx - beq 23f @ configure OMAP2UART3 - cmp \rp, #OMAP3UART3 @ only on 34xx - beq 33f @ configure OMAP3UART3 - cmp \rp, #OMAP4UART3 @ only on 44xx/54xx - beq 43f @ configure OMAP4/5UART3 - cmp \rp, #OMAP3UART4 @ only on 36xx - beq 34f @ configure OMAP3UART4 - cmp \rp, #OMAP4UART4 @ only on 44xx/54xx - beq 44f @ configure OMAP4/5UART4 - cmp \rp, #TI81XXUART1 @ ti81Xx UART offsets different - beq 81f @ configure UART1 - cmp \rp, #TI81XXUART2 @ ti81Xx UART offsets different - beq 82f @ configure UART2 - cmp \rp, #TI81XXUART3 @ ti81Xx UART offsets different - beq 83f @ configure UART3 - cmp \rp, #AM33XXUART1 @ AM33XX UART offsets different - beq 84f @ configure UART1 - cmp \rp, #ZOOM_UART @ only on zoom2/3 - beq 95f @ configure ZOOM_UART - - /* Configure the UART offset from the phys/virt base */ -21: mov \rp, #UART_OFFSET(OMAP2_UART1_BASE) @ omap2/3/4 - b 98f -22: mov \rp, #UART_OFFSET(OMAP2_UART2_BASE) @ omap2/3/4 - b 98f -23: mov \rp, #UART_OFFSET(OMAP2_UART3_BASE) - b 98f -33: mov \rp, #UART_OFFSET(OMAP3_UART1_BASE) - add \rp, \rp, #0x00fb0000 - add \rp, \rp, #0x00006000 @ OMAP3_UART3_BASE - b 98f -34: mov \rp, #UART_OFFSET(OMAP3_UART1_BASE) - add \rp, \rp, #0x00fb0000 - add \rp, \rp, #0x00028000 @ OMAP3_UART4_BASE - b 98f -43: mov \rp, #UART_OFFSET(OMAP4_UART3_BASE) - b 98f -44: mov \rp, #UART_OFFSET(OMAP4_UART4_BASE) - b 98f -81: mov \rp, #UART_OFFSET(TI81XX_UART1_BASE) - b 98f -82: mov \rp, #UART_OFFSET(TI81XX_UART2_BASE) - b 98f -83: mov \rp, #UART_OFFSET(TI81XX_UART3_BASE) - b 98f -84: ldr \rp, =AM33XX_UART1_BASE - and \rp, \rp, #0x00ffffff - b 97f -95: ldr \rp, =ZOOM_UART_BASE - str \rp, [\tmp, #0] @ omap_uart_phys - ldr \rp, =ZOOM_UART_VIRT - str \rp, [\tmp, #4] @ omap_uart_virt - mov \rp, #(UART_LSR << ZOOM_PORT_SHIFT) - str \rp, [\tmp, #8] @ omap_uart_lsr - b 10b - - /* AM33XX: Store both phys and virt address for the uart */ -97: add \rp, \rp, #0x44000000 @ phys base - str \rp, [\tmp, #0] @ omap_uart_phys - sub \rp, \rp, #0x44000000 @ phys base - add \rp, \rp, #0xf9000000 @ virt base - str \rp, [\tmp, #4] @ omap_uart_virt - mov \rp, #(UART_LSR << OMAP_PORT_SHIFT) - str \rp, [\tmp, #8] @ omap_uart_lsr - - b 10b - - /* Store both phys and virt address for the uart */ -98: add \rp, \rp, #0x48000000 @ phys base - str \rp, [\tmp, #0] @ omap_uart_phys - sub \rp, \rp, #0x48000000 @ phys base - add \rp, \rp, #0xfa000000 @ virt base - str \rp, [\tmp, #4] @ omap_uart_virt - mov \rp, #(UART_LSR << OMAP_PORT_SHIFT) - str \rp, [\tmp, #8] @ omap_uart_lsr - - b 10b - - .align -99: .word . - .word omap_uart_phys - .ltorg - -100: /* Pass the UART_LSR reg address */ - ldr \tmp, [\tmp, #8] @ omap_uart_lsr - add \rp, \rp, \tmp - add \rv, \rv, \tmp - .endm - - .macro senduart,rd,rx - orr \rd, \rd, \rx, lsl #24 @ preserve LSR reg offset - bic \rx, \rx, #0xff @ get base (THR) reg address - strb \rd, [\rx] @ send lower byte of rd - orr \rx, \rx, \rd, lsr #24 @ restore original rx (LSR) - bic \rd, \rd, #(0xff << 24) @ restore original rd - .endm - - .macro busyuart,rd,rx -1001: ldrb \rd, [\rx] @ rx contains UART_LSR address - and \rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE) - teq \rd, #(UART_LSR_TEMT | UART_LSR_THRE) - bne 1001b - .endm - - .macro waituart,rd,rx - .endm diff --git a/arch/arm/mach-omap2/include/mach/serial.h b/arch/arm/mach-omap2/include/mach/serial.h index 70eda00db7a4..7ca1fcff453b 100644 --- a/arch/arm/mach-omap2/include/mach/serial.h +++ b/arch/arm/mach-omap2/include/mach/serial.h @@ -8,20 +8,6 @@ * GNU General Public License for more details. */ -/* - * Memory entry used for the DEBUG_LL UART configuration, relative to - * start of RAM. See also uncompress.h and debug-macro.S. - * - * Note that using a memory location for storing the UART configuration - * has at least two limitations: - * - * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the - * uncompress code could then partially overwrite itself - * 2. We assume printascii is called at least once before paging_init, - * and addruart has a chance to read OMAP_UART_INFO - */ -#define OMAP_UART_INFO_OFS 0x3ffc - /* OMAP2 serial ports */ #define OMAP2_UART1_BASE 0x4806a000 #define OMAP2_UART2_BASE 0x4806c000 @@ -68,29 +54,6 @@ #define OMAP24XX_BASE_BAUD (48000000/16) -/* - * DEBUG_LL port encoding stored into the UART1 scratchpad register by - * decomp_setup in uncompress.h - */ -#define OMAP2UART1 21 -#define OMAP2UART2 22 -#define OMAP2UART3 23 -#define OMAP3UART1 OMAP2UART1 -#define OMAP3UART2 OMAP2UART2 -#define OMAP3UART3 33 -#define OMAP3UART4 34 /* Only on 36xx */ -#define OMAP4UART1 OMAP2UART1 -#define OMAP4UART2 OMAP2UART2 -#define OMAP4UART3 43 -#define OMAP4UART4 44 -#define TI81XXUART1 81 -#define TI81XXUART2 82 -#define TI81XXUART3 83 -#define AM33XXUART1 84 -#define OMAP5UART3 OMAP4UART3 -#define OMAP5UART4 OMAP4UART4 -#define ZOOM_UART 95 /* Only on zoom2/3 */ - #ifndef __ASSEMBLER__ struct omap_board_data; diff --git a/arch/arm/mach-omap2/include/mach/uncompress.h b/arch/arm/mach-omap2/include/mach/uncompress.h deleted file mode 100644 index 8e3546d3e041..000000000000 --- a/arch/arm/mach-omap2/include/mach/uncompress.h +++ /dev/null @@ -1,176 +0,0 @@ -/* - * 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 <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() |