mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
148 lines
3.2 KiB
C
148 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <fdtdec.h>
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#include <mmc.h>
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#include <asm/test.h>
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struct sandbox_mmc_plat {
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struct mmc_config cfg;
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struct mmc mmc;
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};
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/**
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* sandbox_mmc_send_cmd() - Emulate SD commands
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*
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* This emulate an SD card version 2. Single-block reads result in zero data.
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* Multiple-block reads return a test string.
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*/
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static int sandbox_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
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struct mmc_data *data)
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{
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switch (cmd->cmdidx) {
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case MMC_CMD_ALL_SEND_CID:
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break;
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case SD_CMD_SEND_RELATIVE_ADDR:
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cmd->response[0] = 0 << 16; /* mmc->rca */
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case MMC_CMD_GO_IDLE_STATE:
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break;
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case SD_CMD_SEND_IF_COND:
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cmd->response[0] = 0xaa;
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break;
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case MMC_CMD_SEND_STATUS:
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cmd->response[0] = MMC_STATUS_RDY_FOR_DATA;
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break;
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case MMC_CMD_SELECT_CARD:
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break;
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case MMC_CMD_SEND_CSD:
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cmd->response[0] = 0;
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cmd->response[1] = 10 << 16; /* 1 << block_len */
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break;
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case SD_CMD_SWITCH_FUNC: {
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if (!data)
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break;
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u32 *resp = (u32 *)data->dest;
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resp[7] = cpu_to_be32(SD_HIGHSPEED_BUSY);
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if ((cmd->cmdarg & 0xF) == UHS_SDR12_BUS_SPEED)
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resp[4] = (cmd->cmdarg & 0xF) << 24;
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break;
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}
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case MMC_CMD_READ_SINGLE_BLOCK:
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memset(data->dest, '\0', data->blocksize);
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break;
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case MMC_CMD_READ_MULTIPLE_BLOCK:
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strcpy(data->dest, "this is a test");
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break;
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case MMC_CMD_STOP_TRANSMISSION:
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break;
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case SD_CMD_APP_SEND_OP_COND:
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cmd->response[0] = OCR_BUSY | OCR_HCS;
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cmd->response[1] = 0;
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cmd->response[2] = 0;
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break;
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case MMC_CMD_APP_CMD:
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break;
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case MMC_CMD_SET_BLOCKLEN:
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debug("block len %d\n", cmd->cmdarg);
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break;
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case SD_CMD_APP_SEND_SCR: {
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u32 *scr = (u32 *)data->dest;
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scr[0] = cpu_to_be32(2 << 24 | 1 << 15); /* SD version 3 */
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break;
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}
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default:
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debug("%s: Unknown command %d\n", __func__, cmd->cmdidx);
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break;
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}
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return 0;
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}
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static int sandbox_mmc_set_ios(struct udevice *dev)
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{
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return 0;
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}
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static int sandbox_mmc_get_cd(struct udevice *dev)
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{
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return 1;
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}
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static const struct dm_mmc_ops sandbox_mmc_ops = {
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.send_cmd = sandbox_mmc_send_cmd,
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.set_ios = sandbox_mmc_set_ios,
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.get_cd = sandbox_mmc_get_cd,
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};
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int sandbox_mmc_probe(struct udevice *dev)
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{
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struct sandbox_mmc_plat *plat = dev_get_platdata(dev);
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return mmc_init(&plat->mmc);
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}
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int sandbox_mmc_bind(struct udevice *dev)
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{
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struct sandbox_mmc_plat *plat = dev_get_platdata(dev);
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struct mmc_config *cfg = &plat->cfg;
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cfg->name = dev->name;
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cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS | MMC_MODE_8BIT;
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cfg->voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34;
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cfg->f_min = 1000000;
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cfg->f_max = 52000000;
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cfg->b_max = U32_MAX;
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return mmc_bind(dev, &plat->mmc, cfg);
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}
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int sandbox_mmc_unbind(struct udevice *dev)
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{
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mmc_unbind(dev);
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return 0;
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}
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static const struct udevice_id sandbox_mmc_ids[] = {
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{ .compatible = "sandbox,mmc" },
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{ }
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};
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U_BOOT_DRIVER(mmc_sandbox) = {
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.name = "mmc_sandbox",
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.id = UCLASS_MMC,
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.of_match = sandbox_mmc_ids,
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.ops = &sandbox_mmc_ops,
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.bind = sandbox_mmc_bind,
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.unbind = sandbox_mmc_unbind,
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.probe = sandbox_mmc_probe,
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.platdata_auto_alloc_size = sizeof(struct sandbox_mmc_plat),
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};
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