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Viewing changes to roms/u-boot/drivers/mmc/zynq_sdhci.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/drivers/mmc/zynq_sdhci.c
 
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/*
 
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 * (C) Copyright 2013 Inc.
 
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 *
 
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 * Xilinx Zynq SD Host Controller Interface
 
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 *
 
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 * SPDX-License-Identifier:     GPL-2.0+
 
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 */
 
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#include <common.h>
 
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#include <fdtdec.h>
 
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#include <libfdt.h>
 
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#include <malloc.h>
 
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#include <sdhci.h>
 
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#include <asm/arch/sys_proto.h>
 
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int zynq_sdhci_init(u32 regbase)
 
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{
 
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        struct sdhci_host *host = NULL;
 
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        host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
 
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        if (!host) {
 
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                printf("zynq_sdhci_init: sdhci_host malloc fail\n");
 
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                return 1;
 
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        }
 
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        host->name = "zynq_sdhci";
 
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        host->ioaddr = (void *)regbase;
 
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        host->quirks = SDHCI_QUIRK_NO_CD | SDHCI_QUIRK_WAIT_SEND_CMD |
 
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                       SDHCI_QUIRK_BROKEN_R1B;
 
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        host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
 
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        host->host_caps = MMC_MODE_HC;
 
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        add_sdhci(host, 52000000, 52000000 >> 9);
 
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        return 0;
 
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}
 
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#ifdef CONFIG_OF_CONTROL
 
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int zynq_sdhci_of_init(const void *blob)
 
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{
 
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        int offset = 0;
 
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        u32 ret = 0;
 
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        u32 reg;
 
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        debug("ZYNQ SDHCI: Initialization\n");
 
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        do {
 
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                offset = fdt_node_offset_by_compatible(blob, offset,
 
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                                        "arasan,sdhci-8.9a");
 
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                if (offset != -1) {
 
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                        reg = fdtdec_get_addr(blob, offset, "reg");
 
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                        if (reg != FDT_ADDR_T_NONE) {
 
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                                ret |= zynq_sdhci_init(reg);
 
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                        } else {
 
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                                debug("ZYNQ SDHCI: Can't get base address\n");
 
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                                return -1;
 
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                        }
 
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                }
 
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        } while (offset != -1);
 
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        return ret;
 
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}
 
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#endif