mirror of
https://github.com/brain-hackers/u-boot-brain
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2014 Google, Inc
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*/
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#include <common.h>
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#include <dm.h>
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#include <log.h>
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#include <malloc.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <dm/device-internal.h>
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#include "sf_internal.h"
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DECLARE_GLOBAL_DATA_PTR;
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int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf)
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{
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return log_ret(sf_get_ops(dev)->read(dev, offset, len, buf));
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}
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int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len,
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const void *buf)
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{
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return log_ret(sf_get_ops(dev)->write(dev, offset, len, buf));
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}
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int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len)
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{
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return log_ret(sf_get_ops(dev)->erase(dev, offset, len));
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}
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/*
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* TODO(sjg@chromium.org): This is an old-style function. We should remove
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* it when all SPI flash drivers use dm
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*/
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struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
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unsigned int max_hz, unsigned int spi_mode)
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{
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struct udevice *dev;
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if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev))
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return NULL;
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return dev_get_uclass_priv(dev);
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}
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void spi_flash_free(struct spi_flash *flash)
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{
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device_remove(flash->spi->dev, DM_REMOVE_NORMAL);
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}
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int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
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unsigned int max_hz, unsigned int spi_mode,
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struct udevice **devp)
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{
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struct spi_slave *slave;
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struct udevice *bus;
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char *str;
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int ret;
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#if defined(CONFIG_SPL_BUILD) && CONFIG_IS_ENABLED(USE_TINY_PRINTF)
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str = "spi_flash";
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#else
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char name[30];
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snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs);
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str = strdup(name);
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#endif
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ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode,
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"jedec_spi_nor", str, &bus, &slave);
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if (ret)
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return ret;
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*devp = slave->dev;
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return 0;
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}
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static int spi_flash_post_bind(struct udevice *dev)
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{
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#if defined(CONFIG_NEEDS_MANUAL_RELOC)
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struct dm_spi_flash_ops *ops = sf_get_ops(dev);
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static int reloc_done;
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if (!reloc_done) {
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if (ops->read)
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ops->read += gd->reloc_off;
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if (ops->write)
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ops->write += gd->reloc_off;
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if (ops->erase)
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ops->erase += gd->reloc_off;
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reloc_done++;
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}
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#endif
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return 0;
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}
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UCLASS_DRIVER(spi_flash) = {
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.id = UCLASS_SPI_FLASH,
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.name = "spi_flash",
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.post_bind = spi_flash_post_bind,
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.per_device_auto = sizeof(struct spi_flash),
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};
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