blob: 3017022abbbc193a64b5050d7ca27097b39b9494 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glass4c2dbef2014-10-13 23:42:06 -06002/*
3 * Copyright (c) 2014 Google, Inc
Simon Glass4c2dbef2014-10-13 23:42:06 -06004 */
5
6#include <common.h>
7#include <dm.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -06008#include <log.h>
Simon Glass336d4612020-02-03 07:36:16 -07009#include <malloc.h>
Simon Glass4c2dbef2014-10-13 23:42:06 -060010#include <spi.h>
11#include <spi_flash.h>
12#include <dm/device-internal.h>
13#include "sf_internal.h"
14
Michal Simek2588f2d2015-10-27 13:52:47 +010015DECLARE_GLOBAL_DATA_PTR;
16
Simon Glass8d987ab2015-03-26 09:29:25 -060017int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf)
18{
Simon Glass5e24a2e2018-10-01 12:22:24 -060019 return log_ret(sf_get_ops(dev)->read(dev, offset, len, buf));
Simon Glass8d987ab2015-03-26 09:29:25 -060020}
21
22int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len,
23 const void *buf)
24{
Simon Glass5e24a2e2018-10-01 12:22:24 -060025 return log_ret(sf_get_ops(dev)->write(dev, offset, len, buf));
Simon Glass8d987ab2015-03-26 09:29:25 -060026}
27
28int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len)
29{
Simon Glass5e24a2e2018-10-01 12:22:24 -060030 return log_ret(sf_get_ops(dev)->erase(dev, offset, len));
Simon Glass8d987ab2015-03-26 09:29:25 -060031}
32
Simon Glass4c2dbef2014-10-13 23:42:06 -060033/*
34 * TODO(sjg@chromium.org): This is an old-style function. We should remove
35 * it when all SPI flash drivers use dm
36 */
37struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
38 unsigned int max_hz, unsigned int spi_mode)
39{
40 struct udevice *dev;
41
42 if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev))
43 return NULL;
44
Simon Glasse564f052015-03-05 12:25:20 -070045 return dev_get_uclass_priv(dev);
Simon Glass4c2dbef2014-10-13 23:42:06 -060046}
47
48void spi_flash_free(struct spi_flash *flash)
49{
Stefan Roese706865a2017-03-20 12:51:48 +010050 device_remove(flash->spi->dev, DM_REMOVE_NORMAL);
Simon Glass4c2dbef2014-10-13 23:42:06 -060051}
52
53int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
54 unsigned int max_hz, unsigned int spi_mode,
55 struct udevice **devp)
56{
57 struct spi_slave *slave;
58 struct udevice *bus;
Simon Glass3c8fb122015-12-29 05:22:47 -070059 char *str;
Simon Glass4c2dbef2014-10-13 23:42:06 -060060 int ret;
61
Simon Glass27084c02019-09-25 08:56:27 -060062#if defined(CONFIG_SPL_BUILD) && CONFIG_IS_ENABLED(USE_TINY_PRINTF)
Simon Glass3c8fb122015-12-29 05:22:47 -070063 str = "spi_flash";
64#else
65 char name[30];
66
Haikun.Wang@freescale.coma5e1bcd2015-05-06 10:37:43 +080067 snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs);
Simon Glass4c2dbef2014-10-13 23:42:06 -060068 str = strdup(name);
Simon Glass3c8fb122015-12-29 05:22:47 -070069#endif
Simon Glass4c2dbef2014-10-13 23:42:06 -060070 ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
Walter Lozanoe3e24702020-06-25 01:10:04 -030071 "jedec_spi_nor", str, &bus, &slave);
Simon Glass4c2dbef2014-10-13 23:42:06 -060072 if (ret)
73 return ret;
74
75 *devp = slave->dev;
76 return 0;
77}
78
Michal Simek2588f2d2015-10-27 13:52:47 +010079static int spi_flash_post_bind(struct udevice *dev)
80{
81#if defined(CONFIG_NEEDS_MANUAL_RELOC)
82 struct dm_spi_flash_ops *ops = sf_get_ops(dev);
83 static int reloc_done;
84
85 if (!reloc_done) {
86 if (ops->read)
87 ops->read += gd->reloc_off;
88 if (ops->write)
89 ops->write += gd->reloc_off;
90 if (ops->erase)
91 ops->erase += gd->reloc_off;
92
93 reloc_done++;
94 }
95#endif
96 return 0;
97}
98
Simon Glass4c2dbef2014-10-13 23:42:06 -060099UCLASS_DRIVER(spi_flash) = {
100 .id = UCLASS_SPI_FLASH,
101 .name = "spi_flash",
Michal Simek2588f2d2015-10-27 13:52:47 +0100102 .post_bind = spi_flash_post_bind,
Simon Glassa1a8a632020-12-19 10:40:01 -0700103 .per_device_auto = sizeof(struct spi_nor),
Simon Glass4c2dbef2014-10-13 23:42:06 -0600104};