@samitouri / QOSamiQemu
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1 /*
2 * Facebook Fuji
3 *
4 * Copyright 2016 IBM Corp.
5 *
6 * SPDX-License-Identifier: GPL-2.0-or-later
7 */
8
9 #include "qemu/osdep.h"
10 #include "qapi/error.h"
11 #include "hw/arm/machines-qom.h"
12 #include "hw/arm/aspeed.h"
13 #include "hw/arm/aspeed_soc.h"
14 #include "hw/i2c/i2c_mux_pca954x.h"
15 #include "hw/sensor/tmp105.h"
16 #include "hw/nvram/eeprom_at24c.h"
17
18 #define TYPE_LM75 TYPE_TMP105
19 #define TYPE_TMP75 TYPE_TMP105
20 #define TYPE_TMP422 "tmp422"
21
22 /* Fuji hardware value */
23 #define FUJI_BMC_HW_STRAP1 0x00000000
24 #define FUJI_BMC_HW_STRAP2 0x00000000
25 #define FUJI_BMC_RAM_SIZE ASPEED_RAM_SIZE(2 * GiB)
26
27 static void get_pca9548_channels(I2CBus *bus, uint8_t mux_addr,
28 I2CBus **channels)
29 {
30 I2CSlave *mux = i2c_slave_create_simple(bus, "pca9548", mux_addr);
31 for (int i = 0; i < 8; i++) {
32 channels[i] = pca954x_i2c_get_bus(mux, i);
33 }
34 }
35
36 static void fuji_bmc_i2c_init(AspeedMachineState *bmc)
37 {
38 AspeedSoCState *soc = bmc->soc;
39 I2CBus *i2c[144] = {};
40
41 for (int i = 0; i < 16; i++) {
42 i2c[i] = aspeed_i2c_get_bus(&soc->i2c, i);
43 }
44 I2CBus *i2c180 = i2c[2];
45 I2CBus *i2c480 = i2c[8];
46 I2CBus *i2c600 = i2c[11];
47
48 get_pca9548_channels(i2c180, 0x70, &i2c[16]);
49 get_pca9548_channels(i2c480, 0x70, &i2c[24]);
50 /* NOTE: The device tree skips [32, 40) in the alias numbering */
51 get_pca9548_channels(i2c600, 0x77, &i2c[40]);
52 get_pca9548_channels(i2c[24], 0x71, &i2c[48]);
53 get_pca9548_channels(i2c[25], 0x72, &i2c[56]);
54 get_pca9548_channels(i2c[26], 0x76, &i2c[64]);
55 get_pca9548_channels(i2c[27], 0x76, &i2c[72]);
56 for (int i = 0; i < 8; i++) {
57 get_pca9548_channels(i2c[40 + i], 0x76, &i2c[80 + i * 8]);
58 }
59
60 i2c_slave_create_simple(i2c[17], TYPE_LM75, 0x4c);
61 i2c_slave_create_simple(i2c[17], TYPE_LM75, 0x4d);
62
63 /*
64 * EEPROM 24c64 size is 64Kbits or 8 Kbytes
65 * 24c02 size is 2Kbits or 256 bytes
66 */
67 at24c_eeprom_init(i2c[19], 0x52, 8 * KiB);
68 at24c_eeprom_init(i2c[20], 0x50, 256);
69 at24c_eeprom_init(i2c[22], 0x52, 256);
70
71 i2c_slave_create_simple(i2c[3], TYPE_LM75, 0x48);
72 i2c_slave_create_simple(i2c[3], TYPE_LM75, 0x49);
73 i2c_slave_create_simple(i2c[3], TYPE_LM75, 0x4a);
74 i2c_slave_create_simple(i2c[3], TYPE_TMP422, 0x4c);
75
76 at24c_eeprom_init(i2c[8], 0x51, 8 * KiB);
77 i2c_slave_create_simple(i2c[8], TYPE_LM75, 0x4a);
78
79 i2c_slave_create_simple(i2c[50], TYPE_LM75, 0x4c);
80 at24c_eeprom_init(i2c[50], 0x52, 8 * KiB);
81 i2c_slave_create_simple(i2c[51], TYPE_TMP75, 0x48);
82 i2c_slave_create_simple(i2c[52], TYPE_TMP75, 0x49);
83
84 i2c_slave_create_simple(i2c[59], TYPE_TMP75, 0x48);
85 i2c_slave_create_simple(i2c[60], TYPE_TMP75, 0x49);
86
87 at24c_eeprom_init(i2c[65], 0x53, 8 * KiB);
88 i2c_slave_create_simple(i2c[66], TYPE_TMP75, 0x49);
89 i2c_slave_create_simple(i2c[66], TYPE_TMP75, 0x48);
90 at24c_eeprom_init(i2c[68], 0x52, 8 * KiB);
91 at24c_eeprom_init(i2c[69], 0x52, 8 * KiB);
92 at24c_eeprom_init(i2c[70], 0x52, 8 * KiB);
93 at24c_eeprom_init(i2c[71], 0x52, 8 * KiB);
94
95 at24c_eeprom_init(i2c[73], 0x53, 8 * KiB);
96 i2c_slave_create_simple(i2c[74], TYPE_TMP75, 0x49);
97 i2c_slave_create_simple(i2c[74], TYPE_TMP75, 0x48);
98 at24c_eeprom_init(i2c[76], 0x52, 8 * KiB);
99 at24c_eeprom_init(i2c[77], 0x52, 8 * KiB);
100 at24c_eeprom_init(i2c[78], 0x52, 8 * KiB);
101 at24c_eeprom_init(i2c[79], 0x52, 8 * KiB);
102 at24c_eeprom_init(i2c[28], 0x50, 256);
103
104 for (int i = 0; i < 8; i++) {
105 at24c_eeprom_init(i2c[81 + i * 8], 0x56, 64 * KiB);
106 i2c_slave_create_simple(i2c[82 + i * 8], TYPE_TMP75, 0x48);
107 i2c_slave_create_simple(i2c[83 + i * 8], TYPE_TMP75, 0x4b);
108 i2c_slave_create_simple(i2c[84 + i * 8], TYPE_TMP75, 0x4a);
109 }
110 }
111
112 static void aspeed_machine_fuji_class_init(ObjectClass *oc, const void *data)
113 {
114 MachineClass *mc = MACHINE_CLASS(oc);
115 AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
116
117 mc->desc = "Facebook Fuji BMC (Cortex-A7)";
118 amc->soc_name = "ast2600-a3";
119 amc->hw_strap1 = FUJI_BMC_HW_STRAP1;
120 amc->hw_strap2 = FUJI_BMC_HW_STRAP2;
121 amc->fmc_model = "mx66l1g45g";
122 amc->spi_model = "mx66l1g45g";
123 amc->num_cs = 2;
124 amc->macs_mask = ASPEED_MAC3_ON;
125 amc->i2c_init = fuji_bmc_i2c_init;
126 amc->uart_default = ASPEED_DEV_UART1;
127 mc->default_ram_size = FUJI_BMC_RAM_SIZE;
128 aspeed_machine_class_init_cpus_defaults(mc);
129 };
130
131 static const TypeInfo aspeed_ast2600_fuji_types[] = {
132 {
133 .name = MACHINE_TYPE_NAME("fuji-bmc"),
134 .parent = TYPE_ASPEED_MACHINE,
135 .class_init = aspeed_machine_fuji_class_init,
136 .interfaces = arm_machine_interfaces,
137 }
138 };
139
140 DEFINE_TYPES(aspeed_ast2600_fuji_types)