Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2014 Google, Inc |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 4 | */ |
| 5 | |
Patrick Delaunay | 8131335 | 2021-04-27 11:02:19 +0200 | [diff] [blame] | 6 | #define LOG_CATEGORY UCLASS_SPI_FLASH |
| 7 | |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 8 | #include <common.h> |
Simon Glass | 215be68 | 2023-01-17 10:48:03 -0700 | [diff] [blame] | 9 | #include <bootdev.h> |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 10 | #include <dm.h> |
Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 11 | #include <log.h> |
Simon Glass | 9bc1564 | 2020-02-03 07:36:16 -0700 | [diff] [blame] | 12 | #include <malloc.h> |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 13 | #include <spi.h> |
| 14 | #include <spi_flash.h> |
Simon Glass | 3ba929a | 2020-10-30 21:38:53 -0600 | [diff] [blame] | 15 | #include <asm/global_data.h> |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 16 | #include <dm/device-internal.h> |
Simon Glass | 215be68 | 2023-01-17 10:48:03 -0700 | [diff] [blame] | 17 | #include <test/test.h> |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 18 | #include "sf_internal.h" |
| 19 | |
Michal Simek | c790ede | 2015-10-27 13:52:47 +0100 | [diff] [blame] | 20 | DECLARE_GLOBAL_DATA_PTR; |
| 21 | |
Simon Glass | 1c36923 | 2015-03-26 09:29:25 -0600 | [diff] [blame] | 22 | int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf) |
| 23 | { |
Simon Glass | 00d9990 | 2018-10-01 12:22:24 -0600 | [diff] [blame] | 24 | return log_ret(sf_get_ops(dev)->read(dev, offset, len, buf)); |
Simon Glass | 1c36923 | 2015-03-26 09:29:25 -0600 | [diff] [blame] | 25 | } |
| 26 | |
| 27 | int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len, |
| 28 | const void *buf) |
| 29 | { |
Simon Glass | 00d9990 | 2018-10-01 12:22:24 -0600 | [diff] [blame] | 30 | return log_ret(sf_get_ops(dev)->write(dev, offset, len, buf)); |
Simon Glass | 1c36923 | 2015-03-26 09:29:25 -0600 | [diff] [blame] | 31 | } |
| 32 | |
| 33 | int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len) |
| 34 | { |
Simon Glass | 00d9990 | 2018-10-01 12:22:24 -0600 | [diff] [blame] | 35 | return log_ret(sf_get_ops(dev)->erase(dev, offset, len)); |
Simon Glass | 1c36923 | 2015-03-26 09:29:25 -0600 | [diff] [blame] | 36 | } |
| 37 | |
Simon Glass | 61d0464 | 2021-03-15 18:11:17 +1300 | [diff] [blame] | 38 | int spl_flash_get_sw_write_prot(struct udevice *dev) |
| 39 | { |
| 40 | struct dm_spi_flash_ops *ops = sf_get_ops(dev); |
| 41 | |
| 42 | if (!ops->get_sw_write_prot) |
| 43 | return -ENOSYS; |
| 44 | return log_ret(ops->get_sw_write_prot(dev)); |
| 45 | } |
| 46 | |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 47 | /* |
| 48 | * TODO(sjg@chromium.org): This is an old-style function. We should remove |
| 49 | * it when all SPI flash drivers use dm |
| 50 | */ |
Patrice Chotard | 05b1aa6 | 2022-03-30 09:33:14 +0200 | [diff] [blame] | 51 | struct spi_flash *spi_flash_probe(unsigned int busnum, unsigned int cs, |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 52 | unsigned int max_hz, unsigned int spi_mode) |
| 53 | { |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 54 | struct spi_slave *slave; |
| 55 | struct udevice *bus; |
Simon Glass | 30d435e | 2015-12-29 05:22:47 -0700 | [diff] [blame] | 56 | char *str; |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 57 | |
Simon Glass | 7611ac6 | 2019-09-25 08:56:27 -0600 | [diff] [blame] | 58 | #if defined(CONFIG_SPL_BUILD) && CONFIG_IS_ENABLED(USE_TINY_PRINTF) |
Simon Glass | 30d435e | 2015-12-29 05:22:47 -0700 | [diff] [blame] | 59 | str = "spi_flash"; |
| 60 | #else |
| 61 | char name[30]; |
| 62 | |
Haikun.Wang@freescale.com | 16b7ddd | 2015-05-06 10:37:43 +0800 | [diff] [blame] | 63 | snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs); |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 64 | str = strdup(name); |
Simon Glass | 30d435e | 2015-12-29 05:22:47 -0700 | [diff] [blame] | 65 | #endif |
Patrice Chotard | 05b1aa6 | 2022-03-30 09:33:14 +0200 | [diff] [blame] | 66 | |
| 67 | if (_spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode, |
| 68 | "jedec_spi_nor", str, &bus, &slave)) |
| 69 | return NULL; |
| 70 | |
| 71 | return dev_get_uclass_priv(slave->dev); |
| 72 | } |
| 73 | |
| 74 | int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, |
| 75 | struct udevice **devp) |
| 76 | { |
| 77 | struct spi_slave *slave; |
| 78 | struct udevice *bus; |
| 79 | int ret; |
| 80 | |
| 81 | ret = spi_get_bus_and_cs(busnum, cs, &bus, &slave); |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 82 | if (ret) |
| 83 | return ret; |
| 84 | |
| 85 | *devp = slave->dev; |
| 86 | return 0; |
| 87 | } |
| 88 | |
Michal Simek | c790ede | 2015-10-27 13:52:47 +0100 | [diff] [blame] | 89 | static int spi_flash_post_bind(struct udevice *dev) |
| 90 | { |
Simon Glass | 215be68 | 2023-01-17 10:48:03 -0700 | [diff] [blame] | 91 | int ret; |
| 92 | |
| 93 | if (CONFIG_IS_ENABLED(BOOTDEV_SPI_FLASH) && test_sf_bootdev_enabled()) { |
| 94 | ret = bootdev_setup_for_dev(dev, "sf_bootdev"); |
| 95 | if (ret) |
| 96 | return log_msg_ret("bd", ret); |
| 97 | } |
| 98 | |
Michal Simek | c790ede | 2015-10-27 13:52:47 +0100 | [diff] [blame] | 99 | return 0; |
| 100 | } |
| 101 | |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 102 | UCLASS_DRIVER(spi_flash) = { |
| 103 | .id = UCLASS_SPI_FLASH, |
| 104 | .name = "spi_flash", |
Michal Simek | c790ede | 2015-10-27 13:52:47 +0100 | [diff] [blame] | 105 | .post_bind = spi_flash_post_bind, |
Simon Glass | b33cd25 | 2020-12-19 10:40:01 -0700 | [diff] [blame] | 106 | .per_device_auto = sizeof(struct spi_nor), |
Simon Glass | d6eedf7 | 2014-10-13 23:42:06 -0600 | [diff] [blame] | 107 | }; |