diff options
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/debug-macro.S | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/arch/arm/mach-tegra/include/mach/debug-macro.S b/arch/arm/mach-tegra/include/mach/debug-macro.S deleted file mode 100644 index 44ca7b1d8b8a..000000000000 --- a/arch/arm/mach-tegra/include/mach/debug-macro.S +++ /dev/null @@ -1,100 +0,0 @@ -/* - * arch/arm/mach-tegra/include/mach/debug-macro.S - * - * Copyright (C) 2010,2011 Google, Inc. - * Copyright (C) 2011-2012 NVIDIA CORPORATION. All Rights Reserved. - * - * Author: - * Colin Cross <ccross@google.com> - * Erik Gilling <konkers@google.com> - * Doug Anderson <dianders@chromium.org> - * Stephen Warren <swarren@nvidia.com> - * - * Portions based on mach-omap2's debug-macro.S - * Copyright (C) 1994-1999 Russell King - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/serial_reg.h> - -#include "../../iomap.h" -#include "../../irammap.h" - - .macro addruart, rp, rv, tmp - adr \rp, 99f @ actual addr of 99f - ldr \rv, [\rp] @ linked addr is stored there - sub \rv, \rv, \rp @ offset between the two - ldr \rp, [\rp, #4] @ linked tegra_uart_config - sub \tmp, \rp, \rv @ actual tegra_uart_config - ldr \rp, [\tmp] @ Load tegra_uart_config - cmp \rp, #1 @ needs intitialization? - bne 100f @ no; go load the addresses - mov \rv, #0 @ yes; record init is done - str \rv, [\tmp] - mov \rp, #TEGRA_IRAM_BASE @ See if cookie is in IRAM - ldr \rv, [\rp, #TEGRA_IRAM_DEBUG_UART_OFFSET] - movw \rp, #TEGRA_IRAM_DEBUG_UART_COOKIE & 0xffff - movt \rp, #TEGRA_IRAM_DEBUG_UART_COOKIE >> 16 - cmp \rv, \rp @ Cookie present? - bne 100f @ No, use default UART - mov \rp, #TEGRA_IRAM_BASE @ Load UART address from IRAM - ldr \rv, [\rp, #TEGRA_IRAM_DEBUG_UART_OFFSET + 4] - str \rv, [\tmp, #4] @ Store in tegra_uart_phys - sub \rv, \rv, #IO_APB_PHYS @ Calculate virt address - add \rv, \rv, #IO_APB_VIRT - str \rv, [\tmp, #8] @ Store in tegra_uart_virt - b 100f - - .align -99: .word . - .word tegra_uart_config - .ltorg - -100: ldr \rp, [\tmp, #4] @ Load tegra_uart_phys - ldr \rv, [\tmp, #8] @ Load tegra_uart_virt - .endm - -#define UART_SHIFT 2 - -/* - * Code below is swiped from <asm/hardware/debug-8250.S>, but add an extra - * check to make sure that we aren't in the CONFIG_TEGRA_DEBUG_UART_NONE case. - * We use the fact that all 5 valid UART addresses all have something in the - * 2nd-to-lowest byte. - */ - - .macro senduart, rd, rx - tst \rx, #0x0000ff00 - strneb \rd, [\rx, #UART_TX << UART_SHIFT] -1001: - .endm - - .macro busyuart, rd, rx - tst \rx, #0x0000ff00 - beq 1002f -1001: ldrb \rd, [\rx, #UART_LSR << UART_SHIFT] - and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE - teq \rd, #UART_LSR_TEMT | UART_LSR_THRE - bne 1001b -1002: - .endm - - .macro waituart, rd, rx -#ifdef FLOW_CONTROL - tst \rx, #0x0000ff00 - beq 1002f -1001: ldrb \rd, [\rx, #UART_MSR << UART_SHIFT] - tst \rd, #UART_MSR_CTS - beq 1001b -1002: -#endif - .endm |