diff options
Diffstat (limited to 'arch/blackfin/mach-bf548/boards/led.S')
| -rw-r--r-- | arch/blackfin/mach-bf548/boards/led.S | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/arch/blackfin/mach-bf548/boards/led.S b/arch/blackfin/mach-bf548/boards/led.S deleted file mode 100644 index f47daf3770d0..000000000000 --- a/arch/blackfin/mach-bf548/boards/led.S +++ /dev/null | |||
| @@ -1,172 +0,0 @@ | |||
| 1 | /**************************************************** | ||
| 2 | * LED1 ---- PG6 LED2 ---- PG7 * | ||
| 3 | * LED3 ---- PG8 LED4 ---- PG9 * | ||
| 4 | * LED5 ---- PG10 LED6 ---- PG11 * | ||
| 5 | ****************************************************/ | ||
| 6 | |||
| 7 | #include <linux/linkage.h> | ||
| 8 | #include <asm/blackfin.h> | ||
| 9 | |||
| 10 | /* All functions in this file save the registers they uses. | ||
| 11 | So there is no need to save any registers before calling them. */ | ||
| 12 | |||
| 13 | .text; | ||
| 14 | |||
| 15 | /* Initialize LEDs. */ | ||
| 16 | |||
| 17 | ENTRY(_led_init) | ||
| 18 | LINK 0; | ||
| 19 | [--SP] = P0; | ||
| 20 | [--SP] = R0; | ||
| 21 | [--SP] = R1; | ||
| 22 | [--SP] = R2; | ||
| 23 | R1 = (PG6|PG7|PG8|PG9|PG10|PG11)(Z); | ||
| 24 | R2 = ~R1; | ||
| 25 | |||
| 26 | P0.H = hi(PORTG_FER); | ||
| 27 | P0.L = lo(PORTG_FER); | ||
| 28 | R0 = W[P0](Z); | ||
| 29 | SSYNC; | ||
| 30 | R0 = R0 & R2; | ||
| 31 | W[P0] = R0.L; | ||
| 32 | SSYNC; | ||
| 33 | |||
| 34 | P0.H = hi(PORTG_DIR_SET); | ||
| 35 | P0.L = lo(PORTG_DIR_SET); | ||
| 36 | W[P0] = R1.L; | ||
| 37 | SSYNC; | ||
| 38 | |||
| 39 | P0.H = hi(PORTG_INEN); | ||
| 40 | P0.L = lo(PORTG_INEN); | ||
| 41 | R0 = W[P0](Z); | ||
| 42 | SSYNC; | ||
| 43 | R0 = R0 & R2; | ||
| 44 | W[P0] = R0.L; | ||
| 45 | SSYNC; | ||
| 46 | |||
| 47 | R2 = [SP++]; | ||
| 48 | R1 = [SP++]; | ||
| 49 | R0 = [SP++]; | ||
| 50 | P0 = [SP++]; | ||
| 51 | RTS; | ||
| 52 | .size _led_init, .-_led_init | ||
| 53 | |||
| 54 | /* Set one LED on. Leave other LEDs unchanged. | ||
| 55 | It expects the LED number passed through R0. */ | ||
| 56 | |||
| 57 | ENTRY(_led_on) | ||
| 58 | LINK 0; | ||
| 59 | [--SP] = P0; | ||
| 60 | [--SP] = R1; | ||
| 61 | CALL _led_init; | ||
| 62 | R1 = 1; | ||
| 63 | R0 += 5; | ||
| 64 | R1 <<= R0; | ||
| 65 | P0.H = hi(PORTG_SET); | ||
| 66 | P0.L = lo(PORTG_SET); | ||
| 67 | W[P0] = R1.L; | ||
| 68 | SSYNC; | ||
| 69 | R1 = [SP++]; | ||
| 70 | P0 = [SP++]; | ||
| 71 | UNLINK; | ||
| 72 | RTS; | ||
| 73 | .size _led_on, .-_led_on | ||
| 74 | |||
| 75 | /* Set one LED off. Leave other LEDs unchanged. */ | ||
| 76 | |||
| 77 | ENTRY(_led_off) | ||
| 78 | LINK 0; | ||
| 79 | [--SP] = P0; | ||
| 80 | [--SP] = R1; | ||
| 81 | CALL _led_init; | ||
| 82 | R1 = 1; | ||
| 83 | R0 += 5; | ||
| 84 | R1 <<= R0; | ||
| 85 | P0.H = hi(PORTG_CLEAR); | ||
| 86 | P0.L = lo(PORTG_CLEAR); | ||
| 87 | W[P0] = R1.L; | ||
| 88 | SSYNC; | ||
| 89 | R1 = [SP++]; | ||
| 90 | P0 = [SP++]; | ||
| 91 | UNLINK; | ||
| 92 | RTS; | ||
| 93 | .size _led_off, .-_led_off | ||
| 94 | |||
| 95 | /* Toggle one LED. Leave other LEDs unchanged. */ | ||
| 96 | |||
| 97 | ENTRY(_led_toggle) | ||
| 98 | LINK 0; | ||
| 99 | [--SP] = P0; | ||
| 100 | [--SP] = R1; | ||
| 101 | CALL _led_init; | ||
| 102 | R1 = 1; | ||
| 103 | R0 += 5; | ||
| 104 | R1 <<= R0; | ||
| 105 | P0.H = hi(PORTG); | ||
| 106 | P0.L = lo(PORTG); | ||
| 107 | R0 = W[P0](Z); | ||
| 108 | SSYNC; | ||
| 109 | R0 = R0 ^ R1; | ||
| 110 | W[P0] = R0.L; | ||
| 111 | SSYNC; | ||
| 112 | R1 = [SP++]; | ||
| 113 | P0 = [SP++]; | ||
| 114 | UNLINK; | ||
| 115 | RTS; | ||
| 116 | .size _led_toggle, .-_led_toggle | ||
| 117 | |||
| 118 | /* Display the number using LEDs in binary format. */ | ||
| 119 | |||
| 120 | ENTRY(_led_disp_num) | ||
| 121 | LINK 0; | ||
| 122 | [--SP] = P0; | ||
| 123 | [--SP] = R1; | ||
| 124 | [--SP] = R2; | ||
| 125 | CALL _led_init; | ||
| 126 | R1 = 0x3f(X); | ||
| 127 | R0 = R0 & R1; | ||
| 128 | R2 = 6(X); | ||
| 129 | R0 <<= R2; | ||
| 130 | R1 <<= R2; | ||
| 131 | P0.H = hi(PORTG); | ||
| 132 | P0.L = lo(PORTG); | ||
| 133 | R2 = W[P0](Z); | ||
| 134 | SSYNC; | ||
| 135 | R1 = ~R1; | ||
| 136 | R2 = R2 & R1; | ||
| 137 | R2 = R2 | R0; | ||
| 138 | W[P0] = R2.L; | ||
| 139 | SSYNC; | ||
| 140 | R2 = [SP++]; | ||
| 141 | R1 = [SP++]; | ||
| 142 | P0 = [SP++]; | ||
| 143 | UNLINK; | ||
| 144 | RTS; | ||
| 145 | .size _led_disp_num, .-_led_disp_num | ||
| 146 | |||
| 147 | /* Toggle the number using LEDs in binary format. */ | ||
| 148 | |||
| 149 | ENTRY(_led_toggle_num) | ||
| 150 | LINK 0; | ||
| 151 | [--SP] = P0; | ||
| 152 | [--SP] = R1; | ||
| 153 | [--SP] = R2; | ||
| 154 | CALL _led_init; | ||
| 155 | R1 = 0x3f(X); | ||
| 156 | R0 = R0 & R1; | ||
| 157 | R1 = 6(X); | ||
| 158 | R0 <<= R1; | ||
| 159 | P0.H = hi(PORTG); | ||
| 160 | P0.L = lo(PORTG); | ||
| 161 | R1 = W[P0](Z); | ||
| 162 | SSYNC; | ||
| 163 | R1 = R1 ^ R0; | ||
| 164 | W[P0] = R1.L; | ||
| 165 | SSYNC; | ||
| 166 | R2 = [SP++]; | ||
| 167 | R1 = [SP++]; | ||
| 168 | P0 = [SP++]; | ||
| 169 | UNLINK; | ||
| 170 | RTS; | ||
| 171 | .size _led_toggle_num, .-_led_toggle_num | ||
| 172 | |||