Tom Rini | 83d290c | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Michal Simek | 76316a3 | 2007-03-11 13:42:58 +0100 | [diff] [blame] | 2 | /* |
| 3 | * (C) Copyright 2007 Michal Simek |
| 4 | * |
Michal Simek | db14d77 | 2007-09-24 00:18:46 +0200 | [diff] [blame] | 5 | * Michal SIMEK <monstr@monstr.eu> |
Michal Simek | 76316a3 | 2007-03-11 13:42:58 +0100 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #include <common.h> |
Simon Glass | 9edefc2 | 2019-11-14 12:57:37 -0700 | [diff] [blame] | 9 | #include <cpu_func.h> |
Michal Simek | fb05f6d | 2007-05-07 23:58:31 +0200 | [diff] [blame] | 10 | #include <asm/asm.h> |
Simon Glass | 90526e9 | 2020-05-10 11:39:56 -0600 | [diff] [blame] | 11 | #include <asm/cache.h> |
Michal Simek | 76316a3 | 2007-03-11 13:42:58 +0100 | [diff] [blame] | 12 | |
Ovidiu Panait | 73b8ee6 | 2022-05-31 21:14:28 +0300 | [diff] [blame] | 13 | static void __invalidate_icache(ulong addr, ulong size) |
| 14 | { |
| 15 | if (CONFIG_IS_ENABLED(XILINX_MICROBLAZE0_USE_WIC)) { |
| 16 | for (int i = 0; i < size; i += 4) { |
| 17 | asm volatile ( |
| 18 | "wic %0, r0;" |
| 19 | "nop;" |
| 20 | : |
| 21 | : "r" (addr + i) |
| 22 | : "memory"); |
| 23 | } |
| 24 | } |
| 25 | } |
| 26 | |
Ovidiu Panait | b195134 | 2022-05-31 21:14:30 +0300 | [diff] [blame^] | 27 | void invalidate_icache_all(void) |
| 28 | { |
| 29 | __invalidate_icache(0, CONFIG_XILINX_MICROBLAZE0_ICACHE_SIZE); |
| 30 | } |
| 31 | |
Ovidiu Panait | 73b8ee6 | 2022-05-31 21:14:28 +0300 | [diff] [blame] | 32 | static void __flush_dcache(ulong addr, ulong size) |
| 33 | { |
| 34 | if (CONFIG_IS_ENABLED(XILINX_MICROBLAZE0_USE_WDC)) { |
| 35 | for (int i = 0; i < size; i += 4) { |
| 36 | asm volatile ( |
| 37 | "wdc.flush %0, r0;" |
| 38 | "nop;" |
| 39 | : |
| 40 | : "r" (addr + i) |
| 41 | : "memory"); |
| 42 | } |
| 43 | } |
| 44 | } |
| 45 | |
Ovidiu Panait | b195134 | 2022-05-31 21:14:30 +0300 | [diff] [blame^] | 46 | void flush_dcache_all(void) |
| 47 | { |
| 48 | __flush_dcache(0, CONFIG_XILINX_MICROBLAZE0_DCACHE_SIZE); |
| 49 | } |
| 50 | |
Simon Glass | 6cc915b | 2019-11-14 12:57:36 -0700 | [diff] [blame] | 51 | int dcache_status(void) |
Michal Simek | 76316a3 | 2007-03-11 13:42:58 +0100 | [diff] [blame] | 52 | { |
| 53 | int i = 0; |
| 54 | int mask = 0x80; |
| 55 | __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory"); |
| 56 | /* i&=0x80 */ |
| 57 | __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory"); |
| 58 | return i; |
| 59 | } |
| 60 | |
Simon Glass | 6cc915b | 2019-11-14 12:57:36 -0700 | [diff] [blame] | 61 | int icache_status(void) |
Michal Simek | 76316a3 | 2007-03-11 13:42:58 +0100 | [diff] [blame] | 62 | { |
| 63 | int i = 0; |
| 64 | int mask = 0x20; |
| 65 | __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory"); |
| 66 | /* i&=0x20 */ |
| 67 | __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory"); |
| 68 | return i; |
| 69 | } |
Michal Simek | f3f001a | 2007-05-07 19:25:08 +0200 | [diff] [blame] | 70 | |
Simon Glass | 6cc915b | 2019-11-14 12:57:36 -0700 | [diff] [blame] | 71 | void icache_enable(void) |
| 72 | { |
Michal Simek | fb05f6d | 2007-05-07 23:58:31 +0200 | [diff] [blame] | 73 | MSRSET(0x20); |
Michal Simek | f3f001a | 2007-05-07 19:25:08 +0200 | [diff] [blame] | 74 | } |
| 75 | |
Simon Glass | 6cc915b | 2019-11-14 12:57:36 -0700 | [diff] [blame] | 76 | void icache_disable(void) |
| 77 | { |
Ovidiu Panait | b195134 | 2022-05-31 21:14:30 +0300 | [diff] [blame^] | 78 | invalidate_icache_all(); |
Ovidiu Panait | 73b8ee6 | 2022-05-31 21:14:28 +0300 | [diff] [blame] | 79 | |
Michal Simek | fb05f6d | 2007-05-07 23:58:31 +0200 | [diff] [blame] | 80 | MSRCLR(0x20); |
Michal Simek | f3f001a | 2007-05-07 19:25:08 +0200 | [diff] [blame] | 81 | } |
| 82 | |
Simon Glass | 6cc915b | 2019-11-14 12:57:36 -0700 | [diff] [blame] | 83 | void dcache_enable(void) |
| 84 | { |
Michal Simek | fb05f6d | 2007-05-07 23:58:31 +0200 | [diff] [blame] | 85 | MSRSET(0x80); |
Michal Simek | f3f001a | 2007-05-07 19:25:08 +0200 | [diff] [blame] | 86 | } |
| 87 | |
Simon Glass | 6cc915b | 2019-11-14 12:57:36 -0700 | [diff] [blame] | 88 | void dcache_disable(void) |
| 89 | { |
Ovidiu Panait | b195134 | 2022-05-31 21:14:30 +0300 | [diff] [blame^] | 90 | flush_dcache_all(); |
Ovidiu Panait | ef0a592 | 2022-05-31 21:14:26 +0300 | [diff] [blame] | 91 | |
Michal Simek | fb05f6d | 2007-05-07 23:58:31 +0200 | [diff] [blame] | 92 | MSRCLR(0x80); |
Michal Simek | f3f001a | 2007-05-07 19:25:08 +0200 | [diff] [blame] | 93 | } |
Michal Simek | 8ff972c | 2010-04-16 12:56:33 +0200 | [diff] [blame] | 94 | |
Simon Glass | 6cc915b | 2019-11-14 12:57:36 -0700 | [diff] [blame] | 95 | void flush_cache(ulong addr, ulong size) |
Michal Simek | 8ff972c | 2010-04-16 12:56:33 +0200 | [diff] [blame] | 96 | { |
Ovidiu Panait | 73b8ee6 | 2022-05-31 21:14:28 +0300 | [diff] [blame] | 97 | __invalidate_icache(addr, size); |
| 98 | __flush_dcache(addr, size); |
Michal Simek | 8ff972c | 2010-04-16 12:56:33 +0200 | [diff] [blame] | 99 | } |
Ovidiu Panait | b195134 | 2022-05-31 21:14:30 +0300 | [diff] [blame^] | 100 | |
| 101 | void flush_cache_all(void) |
| 102 | { |
| 103 | invalidate_icache_all(); |
| 104 | flush_dcache_all(); |
| 105 | } |