1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (c) 2014 Google, Inc
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <dm.h>
9*4882a593Smuzhiyun #include <spi.h>
10*4882a593Smuzhiyun #include <spi_flash.h>
11*4882a593Smuzhiyun #include <dm/device-internal.h>
12*4882a593Smuzhiyun #include "sf_internal.h"
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
15*4882a593Smuzhiyun
spi_flash_read_dm(struct udevice * dev,u32 offset,size_t len,void * buf)16*4882a593Smuzhiyun int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun return log_ret(sf_get_ops(dev)->read(dev, offset, len, buf));
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun
spi_flash_write_dm(struct udevice * dev,u32 offset,size_t len,const void * buf)21*4882a593Smuzhiyun int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len,
22*4882a593Smuzhiyun const void *buf)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun return log_ret(sf_get_ops(dev)->write(dev, offset, len, buf));
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun
spi_flash_erase_dm(struct udevice * dev,u32 offset,size_t len)27*4882a593Smuzhiyun int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun return log_ret(sf_get_ops(dev)->erase(dev, offset, len));
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
spl_flash_get_sw_write_prot(struct udevice * dev)32*4882a593Smuzhiyun int spl_flash_get_sw_write_prot(struct udevice *dev)
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun struct dm_spi_flash_ops *ops = sf_get_ops(dev);
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun if (!ops->get_sw_write_prot)
37*4882a593Smuzhiyun return -ENOSYS;
38*4882a593Smuzhiyun return log_ret(ops->get_sw_write_prot(dev));
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun /*
42*4882a593Smuzhiyun * TODO(sjg@chromium.org): This is an old-style function. We should remove
43*4882a593Smuzhiyun * it when all SPI flash drivers use dm
44*4882a593Smuzhiyun */
spi_flash_probe(unsigned int bus,unsigned int cs,unsigned int max_hz,unsigned int spi_mode)45*4882a593Smuzhiyun struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
46*4882a593Smuzhiyun unsigned int max_hz, unsigned int spi_mode)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun struct udevice *dev;
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev))
51*4882a593Smuzhiyun return NULL;
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun return dev_get_uclass_priv(dev);
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
spi_flash_free(struct spi_flash * flash)56*4882a593Smuzhiyun void spi_flash_free(struct spi_flash *flash)
57*4882a593Smuzhiyun {
58*4882a593Smuzhiyun device_remove(flash->spi->dev, DM_REMOVE_NORMAL);
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun
spi_flash_probe_bus_cs(unsigned int busnum,unsigned int cs,unsigned int max_hz,unsigned int spi_mode,struct udevice ** devp)61*4882a593Smuzhiyun int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
62*4882a593Smuzhiyun unsigned int max_hz, unsigned int spi_mode,
63*4882a593Smuzhiyun struct udevice **devp)
64*4882a593Smuzhiyun {
65*4882a593Smuzhiyun struct spi_slave *slave;
66*4882a593Smuzhiyun struct udevice *bus;
67*4882a593Smuzhiyun char *str;
68*4882a593Smuzhiyun int ret;
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_USE_TINY_PRINTF)
71*4882a593Smuzhiyun str = "spi_flash";
72*4882a593Smuzhiyun #else
73*4882a593Smuzhiyun char name[30];
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs);
76*4882a593Smuzhiyun str = strdup(name);
77*4882a593Smuzhiyun #endif
78*4882a593Smuzhiyun ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
79*4882a593Smuzhiyun "spi_flash_std", str, &bus, &slave);
80*4882a593Smuzhiyun if (ret)
81*4882a593Smuzhiyun return ret;
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun *devp = slave->dev;
84*4882a593Smuzhiyun return 0;
85*4882a593Smuzhiyun }
86*4882a593Smuzhiyun
spi_flash_post_bind(struct udevice * dev)87*4882a593Smuzhiyun static int spi_flash_post_bind(struct udevice *dev)
88*4882a593Smuzhiyun {
89*4882a593Smuzhiyun #if defined(CONFIG_NEEDS_MANUAL_RELOC)
90*4882a593Smuzhiyun struct dm_spi_flash_ops *ops = sf_get_ops(dev);
91*4882a593Smuzhiyun static int reloc_done;
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun if (!reloc_done) {
94*4882a593Smuzhiyun if (ops->read)
95*4882a593Smuzhiyun ops->read += gd->reloc_off;
96*4882a593Smuzhiyun if (ops->write)
97*4882a593Smuzhiyun ops->write += gd->reloc_off;
98*4882a593Smuzhiyun if (ops->erase)
99*4882a593Smuzhiyun ops->erase += gd->reloc_off;
100*4882a593Smuzhiyun
101*4882a593Smuzhiyun reloc_done++;
102*4882a593Smuzhiyun }
103*4882a593Smuzhiyun #endif
104*4882a593Smuzhiyun return 0;
105*4882a593Smuzhiyun }
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun UCLASS_DRIVER(spi_flash) = {
108*4882a593Smuzhiyun .id = UCLASS_SPI_FLASH,
109*4882a593Smuzhiyun .name = "spi_flash",
110*4882a593Smuzhiyun .post_bind = spi_flash_post_bind,
111*4882a593Smuzhiyun .per_device_auto_alloc_size = sizeof(struct spi_flash),
112*4882a593Smuzhiyun };
113