/*
*
* Copyright (C) 2007 Google, Inc.
* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
* Author: Brian Swetland <[email protected]>
*
* 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.
*
*/

#if defined(CONFIG_ARCH_MSM7X00A) || defined(CONFIG_ARCH_QSD8X50)
#define MSM_UART1_PHYS 0xA9A00000
#define MSM_UART2_PHYS 0xA9B00000
#define MSM_UART3_PHYS 0xA9C00000
#elif defined(CONFIG_ARCH_MSM7X30)
#define MSM_UART1_PHYS 0xACA00000
#define MSM_UART2_PHYS 0xACB00000
#define MSM_UART3_PHYS 0xACC00000
#endif

#if defined(CONFIG_DEBUG_MSM_UART1)
#define MSM_DEBUG_UART_BASE 0xE1000000
#define MSM_DEBUG_UART_PHYS MSM_UART1_PHYS
#elif defined(CONFIG_DEBUG_MSM_UART2)
#define MSM_DEBUG_UART_BASE 0xE1000000
#define MSM_DEBUG_UART_PHYS MSM_UART2_PHYS
#elif defined(CONFIG_DEBUG_MSM_UART3)
#define MSM_DEBUG_UART_BASE 0xE1000000
#define MSM_DEBUG_UART_PHYS MSM_UART3_PHYS
#endif

#ifdef CONFIG_DEBUG_MSM8660_UART
#define MSM_DEBUG_UART_BASE 0xF0040000
#define MSM_DEBUG_UART_PHYS 0x19C40000
#endif

#ifdef CONFIG_DEBUG_MSM8960_UART
#define MSM_DEBUG_UART_BASE 0xF0040000
#define MSM_DEBUG_UART_PHYS 0x16440000
#endif

#ifdef CONFIG_DEBUG_MSM8974_UART
#define MSM_DEBUG_UART_BASE 0xFA71E000
#define MSM_DEBUG_UART_PHYS 0xF991E000
#endif

.macro addruart, rp, rv, tmp
#ifdef MSM_DEBUG_UART_PHYS
ldr \rp, =MSM_DEBUG_UART_PHYS
ldr \rv, =MSM_DEBUG_UART_BASE
#endif
.endm

.macro senduart, rd, rx
#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS
@ Write the 1 character to UARTDM_TF
str \rd, [\rx, #0x70]
#else
str \rd, [\rx, #0x0C]
#endif
.endm

.macro waituart, rd, rx
#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS
@ check for TX_EMT in UARTDM_SR
ldr \rd, [\rx, #0x08]
tst \rd, #0x08
bne 1002f
@ wait for TXREADY in UARTDM_ISR
1001: ldr \rd, [\rx, #0x14]
tst \rd, #0x80
beq 1001b
1002:
@ Clear TX_READY by writing to the UARTDM_CR register
mov \rd, #0x300
str \rd, [\rx, #0x10]
@ Write 0x1 to NCF register
mov \rd, #0x1
str \rd, [\rx, #0x40]
@ UARTDM reg. Read to induce delay
ldr \rd, [\rx, #0x08]
#else
@ wait for TX_READY
1001: ldr \rd, [\rx, #0x08]
tst \rd, #0x04
beq 1001b
#endif
.endm

.macro busyuart, rd, rx
.endm