@samitouri / QOSamiQemu
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1 /*
2 * Facebook Bletchley
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/gpio/pca9552.h"
15 #include "hw/nvram/eeprom_at24c.h"
16
17 #define TYPE_TMP421 "tmp421"
18 /* Bletchley hardware value */
19 #define BLETCHLEY_BMC_HW_STRAP1 0x00002000
20 #define BLETCHLEY_BMC_HW_STRAP2 0x00000801
21 #define BLETCHLEY_BMC_RAM_SIZE ASPEED_RAM_SIZE(2 * GiB)
22
23 static void bletchley_bmc_i2c_init(AspeedMachineState *bmc)
24 {
25 AspeedSoCState *soc = bmc->soc;
26 I2CBus *i2c[13] = {};
27 for (int i = 0; i < 13; i++) {
28 if ((i == 8) || (i == 11)) {
29 continue;
30 }
31 i2c[i] = aspeed_i2c_get_bus(&soc->i2c, i);
32 }
33
34 /* Bus 0 - 5 all have the same config. */
35 for (int i = 0; i < 6; i++) {
36 /* Missing model: ti,ina230 @ 0x45 */
37 /* Missing model: mps,mp5023 @ 0x40 */
38 i2c_slave_create_simple(i2c[i], TYPE_TMP421, 0x4f);
39 /* Missing model: nxp,pca9539 @ 0x76, but PCA9552 works enough */
40 i2c_slave_create_simple(i2c[i], TYPE_PCA9552, 0x76);
41 i2c_slave_create_simple(i2c[i], TYPE_PCA9552, 0x67);
42 /* Missing model: fsc,fusb302 @ 0x22 */
43 }
44
45 /* Bus 6 */
46 at24c_eeprom_init(i2c[6], 0x56, 65536);
47 /* Missing model: nxp,pcf85263 @ 0x51 , but ds1338 works enough */
48 i2c_slave_create_simple(i2c[6], "ds1338", 0x51);
49
50
51 /* Bus 7 */
52 at24c_eeprom_init(i2c[7], 0x54, 65536);
53
54 /* Bus 9 */
55 i2c_slave_create_simple(i2c[9], TYPE_TMP421, 0x4f);
56
57 /* Bus 10 */
58 i2c_slave_create_simple(i2c[10], TYPE_TMP421, 0x4f);
59 /* Missing model: ti,hdc1080 @ 0x40 */
60 i2c_slave_create_simple(i2c[10], TYPE_PCA9552, 0x67);
61
62 /* Bus 12 */
63 /* Missing model: adi,adm1278 @ 0x11 */
64 i2c_slave_create_simple(i2c[12], TYPE_TMP421, 0x4c);
65 i2c_slave_create_simple(i2c[12], TYPE_TMP421, 0x4d);
66 i2c_slave_create_simple(i2c[12], TYPE_PCA9552, 0x67);
67 }
68
69 static void aspeed_machine_bletchley_class_init(ObjectClass *oc,
70 const void *data)
71 {
72 MachineClass *mc = MACHINE_CLASS(oc);
73 AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
74
75 mc->desc = "Facebook Bletchley BMC (Cortex-A7)";
76 amc->soc_name = "ast2600-a3";
77 amc->hw_strap1 = BLETCHLEY_BMC_HW_STRAP1;
78 amc->hw_strap2 = BLETCHLEY_BMC_HW_STRAP2;
79 amc->fmc_model = "w25q01jvq";
80 amc->spi_model = NULL;
81 amc->num_cs = 2;
82 amc->macs_mask = ASPEED_MAC2_ON;
83 amc->i2c_init = bletchley_bmc_i2c_init;
84 mc->default_ram_size = BLETCHLEY_BMC_RAM_SIZE;
85 aspeed_machine_class_init_cpus_defaults(mc);
86 }
87
88 static const TypeInfo aspeed_ast2600_bletchley_types[] = {
89 {
90 .name = MACHINE_TYPE_NAME("bletchley-bmc"),
91 .parent = TYPE_ASPEED_MACHINE,
92 .class_init = aspeed_machine_bletchley_class_init,
93 .interfaces = arm_machine_interfaces,
94 }
95 };
96
97 DEFINE_TYPES(aspeed_ast2600_bletchley_types)