projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c7c3eac6 SG |
1 | /* |
| 2 | * Copyright 2013 Freescale Semiconductor, Inc. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License version 2 as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | * | |
| 8 | */ | |
| 9 | ||
| cfdb7d56 SA |
10 | #define VF_UART0_BASE_ADDR 0x40027000 |
| 11 | #define VF_UART1_BASE_ADDR 0x40028000 | |
| 12 | #define VF_UART2_BASE_ADDR 0x40029000 | |
| 13 | #define VF_UART3_BASE_ADDR 0x4002a000 | |
| 14 | #define VF_UART_BASE_ADDR(n) VF_UART##n##_BASE_ADDR | |
| 15 | #define VF_UART_BASE(n) VF_UART_BASE_ADDR(n) | |
| 16 | #define VF_UART_PHYSICAL_BASE VF_UART_BASE(CONFIG_DEBUG_VF_UART_PORT) | |
| 17 | ||
| 18 | #define VF_UART_VIRTUAL_BASE 0xfe000000 | |
| 19 | ||
| c7c3eac6 | 20 | .macro addruart, rp, rv, tmp |
| cfdb7d56 SA |
21 | ldr \rp, =VF_UART_PHYSICAL_BASE @ physical |
| 22 | and \rv, \rp, #0xffffff @ offset within 16MB section | |
| 23 | add \rv, \rv, #VF_UART_VIRTUAL_BASE | |
| c7c3eac6 SG |
24 | .endm |
| 25 | ||
| 26 | .macro senduart, rd, rx | |
| 27 | strb \rd, [\rx, #0x7] @ Data Register | |
| 28 | .endm | |
| 29 | ||
| 30 | .macro busyuart, rd, rx | |
| 31 | 1001: ldrb \rd, [\rx, #0x4] @ Status Register 1 | |
| 32 | tst \rd, #1 << 6 @ TC | |
| 33 | beq 1001b @ wait until transmit done | |
| 34 | .endm | |
| 35 | ||
| 36 | .macro waituart,rd,rx | |
| 37 | .endm |