xref: /openbmc/u-boot/drivers/pch/sandbox_pch.c (revision c507d306)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2018 Google LLC
4  */
5 
6 #include <common.h>
7 #include <dm.h>
8 #include <pch.h>
9 
10 struct sandbox_pch_priv {
11 	bool protect;
12 };
13 
sandbox_get_pch_spi_protect(struct udevice * dev)14 int sandbox_get_pch_spi_protect(struct udevice *dev)
15 {
16 	struct sandbox_pch_priv *priv = dev_get_priv(dev);
17 
18 	return priv->protect;
19 }
20 
sandbox_pch_get_spi_base(struct udevice * dev,ulong * sbasep)21 static int sandbox_pch_get_spi_base(struct udevice *dev, ulong *sbasep)
22 {
23 	*sbasep = 0x10;
24 
25 	return 0;
26 }
27 
sandbox_pch_set_spi_protect(struct udevice * dev,bool protect)28 static int sandbox_pch_set_spi_protect(struct udevice *dev, bool protect)
29 {
30 	struct sandbox_pch_priv *priv = dev_get_priv(dev);
31 
32 	priv->protect = protect;
33 
34 	return 0;
35 }
36 
sandbox_pch_get_gpio_base(struct udevice * dev,u32 * gbasep)37 static int sandbox_pch_get_gpio_base(struct udevice *dev, u32 *gbasep)
38 {
39 	*gbasep = 0x20;
40 
41 	return 0;
42 }
43 
sandbox_pch_get_io_base(struct udevice * dev,u32 * iobasep)44 static int sandbox_pch_get_io_base(struct udevice *dev, u32 *iobasep)
45 {
46 	*iobasep = 0x30;
47 
48 	return 0;
49 }
50 
sandbox_pch_ioctl(struct udevice * dev,enum pch_req_t req,void * data,int size)51 int sandbox_pch_ioctl(struct udevice *dev, enum pch_req_t req, void *data,
52 		      int size)
53 {
54 	switch (req) {
55 	case PCH_REQ_TEST1:
56 		return -ENOSYS;
57 	case PCH_REQ_TEST2:
58 		return *(char *)data;
59 	case PCH_REQ_TEST3:
60 		*(char *)data = 'x';
61 		return 1;
62 	default:
63 		return -ENOSYS;
64 	}
65 }
66 
67 static const struct pch_ops sandbox_pch_ops = {
68 	.get_spi_base	= sandbox_pch_get_spi_base,
69 	.set_spi_protect = sandbox_pch_set_spi_protect,
70 	.get_gpio_base	= sandbox_pch_get_gpio_base,
71 	.get_io_base = sandbox_pch_get_io_base,
72 	.ioctl		= sandbox_pch_ioctl,
73 };
74 
75 static const struct udevice_id sandbox_pch_ids[] = {
76 	{ .compatible = "sandbox,pch" },
77 	{ }
78 };
79 
80 U_BOOT_DRIVER(sandbox_pch_drv) = {
81 	.name		= "sandbox-pch",
82 	.id		= UCLASS_PCH,
83 	.of_match	= sandbox_pch_ids,
84 	.ops		= &sandbox_pch_ops,
85 	.priv_auto_alloc_size	= sizeof(struct sandbox_pch_priv),
86 };
87