1 /* 2 * ASPEED AST2400 SMC Controller (SPI Flash Only) 3 * 4 * Copyright (C) 2016 IBM Corp. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #ifndef ASPEED_SMC_H 26 #define ASPEED_SMC_H 27 28 #include "hw/ssi/ssi.h" 29 #include "hw/sysbus.h" 30 #include "qom/object.h" 31 32 struct AspeedSMCState; 33 34 #define TYPE_ASPEED_SMC_FLASH "aspeed.smc.flash" 35 OBJECT_DECLARE_SIMPLE_TYPE(AspeedSMCFlash, ASPEED_SMC_FLASH) 36 struct AspeedSMCFlash { 37 SysBusDevice parent_obj; 38 39 struct AspeedSMCState *controller; 40 uint8_t cs; 41 42 MemoryRegion mmio; 43 }; 44 45 #define TYPE_ASPEED_SMC "aspeed.smc" 46 OBJECT_DECLARE_TYPE(AspeedSMCState, AspeedSMCClass, ASPEED_SMC) 47 48 #define ASPEED_SMC_R_MAX (0x100 / 4) 49 #define ASPEED_SMC_CS_MAX 5 50 51 struct AspeedSMCState { 52 SysBusDevice parent_obj; 53 54 MemoryRegion mmio; 55 MemoryRegion mmio_flash; 56 MemoryRegion mmio_flash_alias; 57 58 qemu_irq irq; 59 60 uint32_t num_cs; 61 qemu_irq *cs_lines; 62 bool inject_failure; 63 64 SSIBus *spi; 65 66 uint32_t regs[ASPEED_SMC_R_MAX]; 67 68 /* depends on the controller type */ 69 uint8_t r_conf; 70 uint8_t r_ce_ctrl; 71 uint8_t r_ctrl0; 72 uint8_t r_timings; 73 uint8_t conf_enable_w0; 74 75 AddressSpace flash_as; 76 MemoryRegion *dram_mr; 77 AddressSpace dram_as; 78 79 AspeedSMCFlash flashes[ASPEED_SMC_CS_MAX]; 80 81 uint8_t snoop_index; 82 uint8_t snoop_dummies; 83 }; 84 85 typedef struct AspeedSegments { 86 hwaddr addr; 87 uint32_t size; 88 } AspeedSegments; 89 90 struct AspeedSMCClass { 91 SysBusDeviceClass parent_obj; 92 93 uint8_t r_conf; 94 uint8_t r_ce_ctrl; 95 uint8_t r_ctrl0; 96 uint8_t r_timings; 97 uint8_t nregs_timings; 98 uint8_t conf_enable_w0; 99 uint8_t max_peripherals; 100 const uint32_t *resets; 101 const AspeedSegments *segments; 102 hwaddr flash_window_base; 103 uint32_t flash_window_size; 104 uint32_t features; 105 hwaddr dma_flash_mask; 106 hwaddr dma_dram_mask; 107 uint32_t nregs; 108 uint32_t (*segment_to_reg)(const AspeedSMCState *s, 109 const AspeedSegments *seg); 110 void (*reg_to_segment)(const AspeedSMCState *s, uint32_t reg, 111 AspeedSegments *seg); 112 void (*dma_ctrl)(AspeedSMCState *s, uint32_t value); 113 int (*addr_width)(const AspeedSMCState *s); 114 }; 115 116 #endif /* ASPEED_SMC_H */ 117