@samitouri / QOSamiQemu
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1 /*
2 * OpenPOWER Witherspoon
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/misc/led.h"
15 #include "hw/sensor/tmp105.h"
16 #include "hw/i2c/smbus_eeprom.h"
17 #include "hw/gpio/pca9552.h"
18
19 /* Witherspoon hardware value: 0xF10AD216 */
20 #define WITHERSPOON_BMC_HW_STRAP1 ( \
21 AST2500_HW_STRAP1_DEFAULTS | \
22 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
23 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
24 SCU_AST2500_HW_STRAP_UART_DEBUG | \
25 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
26 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
27 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
28
29 static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc)
30 {
31 static const struct {
32 unsigned gpio_id;
33 LEDColor color;
34 const char *description;
35 bool gpio_polarity;
36 } pca1_leds[] = {
37 {13, LED_COLOR_GREEN, "front-fault-4", GPIO_POLARITY_ACTIVE_LOW},
38 {14, LED_COLOR_GREEN, "front-power-3", GPIO_POLARITY_ACTIVE_LOW},
39 {15, LED_COLOR_GREEN, "front-id-5", GPIO_POLARITY_ACTIVE_LOW},
40 };
41 AspeedSoCState *soc = bmc->soc;
42 uint8_t *eeprom_buf = g_malloc0(8 * 1024);
43 DeviceState *dev;
44 LEDState *led;
45
46 /* Bus 3: TODO bmp280@77 */
47 dev = DEVICE(i2c_slave_new(TYPE_PCA9552, 0x60));
48 qdev_prop_set_string(dev, "description", "pca1");
49 i2c_slave_realize_and_unref(I2C_SLAVE(dev),
50 aspeed_i2c_get_bus(&soc->i2c, 3),
51 &error_fatal);
52
53 for (size_t i = 0; i < ARRAY_SIZE(pca1_leds); i++) {
54 led = led_create_simple(OBJECT(bmc),
55 pca1_leds[i].gpio_polarity,
56 pca1_leds[i].color,
57 pca1_leds[i].description);
58 qdev_connect_gpio_out(dev, pca1_leds[i].gpio_id,
59 qdev_get_gpio_in(DEVICE(led), 0));
60 }
61 i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3), "dps310", 0x76);
62 i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3), "max31785", 0x52);
63 i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), "tmp423", 0x4c);
64 i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5), "tmp423", 0x4c);
65
66 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
67 i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), TYPE_TMP105,
68 0x4a);
69
70 /*
71 * The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
72 * good enough
73 */
74 i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11), "ds1338", 0x32);
75
76 smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 11), 0x51,
77 eeprom_buf);
78 dev = DEVICE(i2c_slave_new(TYPE_PCA9552, 0x60));
79 qdev_prop_set_string(dev, "description", "pca0");
80 i2c_slave_realize_and_unref(I2C_SLAVE(dev),
81 aspeed_i2c_get_bus(&soc->i2c, 11),
82 &error_fatal);
83 /* Bus 11: TODO ucd90160@64 */
84 }
85
86 static void aspeed_machine_witherspoon_class_init(ObjectClass *oc,
87 const void *data)
88 {
89 MachineClass *mc = MACHINE_CLASS(oc);
90 AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
91
92 mc->desc = "OpenPOWER Witherspoon BMC (ARM1176)";
93 amc->soc_name = "ast2500-a1";
94 amc->hw_strap1 = WITHERSPOON_BMC_HW_STRAP1;
95 amc->fmc_model = "mx25l25635f";
96 amc->spi_model = "mx66l1g45g";
97 amc->num_cs = 2;
98 amc->i2c_init = witherspoon_bmc_i2c_init;
99 mc->default_ram_size = 512 * MiB;
100 aspeed_machine_class_init_cpus_defaults(mc);
101 };
102
103 static const TypeInfo aspeed_ast2500_witherspoon_types[] = {
104 {
105 .name = MACHINE_TYPE_NAME("witherspoon-bmc"),
106 .parent = TYPE_ASPEED_MACHINE,
107 .class_init = aspeed_machine_witherspoon_class_init,
108 .interfaces = arm_machine_interfaces,
109 }
110 };
111
112 DEFINE_TYPES(aspeed_ast2500_witherspoon_types)