git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| a09e64fb | 1 | /* arch/arm/mach-s3c2410/include/mach/debug-macro.S |
| 1da177e4 LT |
2 | * |
| 3 | * Debugging macro include header | |
| 4 | * | |
| 5 | * Copyright (C) 1994-1999 Russell King | |
| 6 | * Copyright (C) 2005 Simtec Electronics | |
| 7 | * | |
| 8 | * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License version 2 as | |
| 12 | * published by the Free Software Foundation. | |
| 1da177e4 LT |
13 | */ |
| 14 | ||
| a09e64fb RK |
15 | #include <mach/map.h> |
| 16 | #include <mach/regs-gpio.h> | |
| a2b7ba9c | 17 | #include <plat/regs-serial.h> |
| 498e03b6 | 18 | |
| 1da177e4 LT |
19 | #define S3C2410_UART1_OFF (0x4000) |
| 20 | #define SHIFT_2440TXF (14-9) | |
| 21 | ||
| 0ea12930 JK |
22 | .macro addruart, rp, rv |
| 23 | ldr \rp, = S3C24XX_PA_UART | |
| 24 | ldr \rv, = S3C24XX_VA_UART | |
| 3ec20520 | 25 | #if CONFIG_DEBUG_S3C_UART != 0 |
| 0ea12930 JK |
26 | add \rp, \rp, #(S3C2410_UART1_OFF * CONFIG_DEBUG_S3C_UART) |
| 27 | add \rv, \rv, #(S3C2410_UART1_OFF * CONFIG_DEBUG_S3C_UART) | |
| 1da177e4 | 28 | #endif |
| 498e03b6 | 29 | .endm |
| 1da177e4 | 30 | |
| cbc4dbff | 31 | .macro fifo_full_s3c24xx rd, rx |
| 68d9ab39 BD |
32 | @ check for arm920 vs arm926. currently assume all arm926 |
| 33 | @ devices have an 64 byte FIFO identical to the s3c2440 | |
| 34 | mrc p15, 0, \rd, c0, c0 | |
| 35 | and \rd, \rd, #0xff0 | |
| 36 | teq \rd, #0x260 | |
| 37 | beq 1004f | |
| 1da177e4 LT |
38 | mrc p15, 0, \rd, c1, c0 |
| 39 | tst \rd, #1 | |
| 0367a8d3 | 40 | addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART) |
| 1da177e4 LT |
41 | addne \rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART) |
| 42 | bic \rd, \rd, #0xff000 | |
| 43 | ldr \rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ] | |
| 44 | and \rd, \rd, #0x00ff0000 | |
| 45 | teq \rd, #0x00440000 @ is it 2440? | |
| 68d9ab39 | 46 | 1004: |
| 1da177e4 LT |
47 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] |
| 48 | moveq \rd, \rd, lsr #SHIFT_2440TXF | |
| 49 | tst \rd, #S3C2410_UFSTAT_TXFULL | |
| 498e03b6 | 50 | .endm |
| 1da177e4 | 51 | |
| cbc4dbff BD |
52 | .macro fifo_full_s3c2410 rd, rx |
| 53 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] | |
| 54 | tst \rd, #S3C2410_UFSTAT_TXFULL | |
| 55 | .endm | |
| 56 | ||
| 57 | /* fifo level reading */ | |
| 58 | ||
| 59 | .macro fifo_level_s3c24xx rd, rx | |
| 1197b4cd BD |
60 | @ check for arm920 vs arm926. currently assume all arm926 |
| 61 | @ devices have an 64 byte FIFO identical to the s3c2440 | |
| 62 | mrc p15, 0, \rd, c0, c0 | |
| 63 | and \rd, \rd, #0xff0 | |
| 64 | teq \rd, #0x260 | |
| 65 | beq 10000f | |
| 1da177e4 LT |
66 | mrc p15, 0, \rd, c1, c0 |
| 67 | tst \rd, #1 | |
| 0367a8d3 | 68 | addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART) |
| 1da177e4 LT |
69 | addne \rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART) |
| 70 | bic \rd, \rd, #0xff000 | |
| 71 | ldr \rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ] | |
| 72 | and \rd, \rd, #0x00ff0000 | |
| 73 | teq \rd, #0x00440000 @ is it 2440? | |
| 74 | ||
| 1197b4cd | 75 | 10000: |
| 1da177e4 LT |
76 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] |
| 77 | andne \rd, \rd, #S3C2410_UFSTAT_TXMASK | |
| 78 | andeq \rd, \rd, #S3C2440_UFSTAT_TXMASK | |
| 498e03b6 | 79 | .endm |
| cbc4dbff BD |
80 | |
| 81 | .macro fifo_level_s3c2410 rd, rx | |
| 82 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] | |
| 83 | and \rd, \rd, #S3C2410_UFSTAT_TXMASK | |
| 84 | .endm | |
| 85 | ||
| 86 | /* Select the correct implementation depending on the configuration. The | |
| 87 | * S3C2440 will get selected by default, as these are the most widely | |
| 88 | * used variants of these | |
| 89 | */ | |
| 90 | ||
| 91 | #if defined(CONFIG_CPU_LLSERIAL_S3C2410_ONLY) | |
| 92 | #define fifo_full fifo_full_s3c2410 | |
| 93 | #define fifo_level fifo_level_s3c2410 | |
| cbc4dbff BD |
94 | #elif !defined(CONFIG_CPU_LLSERIAL_S3C2440_ONLY) |
| 95 | #define fifo_full fifo_full_s3c24xx | |
| 96 | #define fifo_level fifo_level_s3c24xx | |
| cbc4dbff BD |
97 | #endif |
| 98 | ||
| 99 | /* include the reset of the code which will do the work */ | |
| 100 | ||
| a2b7ba9c | 101 | #include <plat/debug-macro.S> |