tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * arch/arm/mach-prima2/include/mach/debug-macro.S
3 *
4 * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
5 *
6 * Licensed under GPLv2 or later.
7 */
8
9#if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1)
10#define SIRFSOC_UART1_PA_BASE 0xb0060000
11#elif defined(CONFIG_DEBUG_SIRFMARCO_UART1)
12#define SIRFSOC_UART1_PA_BASE 0xcc060000
13#else
14#define SIRFSOC_UART1_PA_BASE 0
15#endif
16
17#define SIRFSOC_UART1_VA_BASE 0xFEC60000
18
19#define SIRFSOC_UART_TXFIFO_STATUS 0x0114
20#define SIRFSOC_UART_TXFIFO_DATA 0x0118
21
22#define SIRFSOC_UART1_TXFIFO_FULL (1 << 5)
23#define SIRFSOC_UART1_TXFIFO_EMPTY (1 << 6)
24
25 .macro addruart, rp, rv, tmp
26 ldr \rp, =SIRFSOC_UART1_PA_BASE @ physical
27 ldr \rv, =SIRFSOC_UART1_VA_BASE @ virtual
28 .endm
29
30 .macro senduart,rd,rx
31 str \rd, [\rx, #SIRFSOC_UART_TXFIFO_DATA]
32 .endm
33
34 .macro busyuart,rd,rx
35 .endm
36
37 .macro waituart,rd,rx
381001: ldr \rd, [\rx, #SIRFSOC_UART_TXFIFO_STATUS]
39 tst \rd, #SIRFSOC_UART1_TXFIFO_EMPTY
40 beq 1001b
41 .endm
42