diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/mmc/zynq_sdhci.c')
-rw-r--r-- | qemu/roms/u-boot/drivers/mmc/zynq_sdhci.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/mmc/zynq_sdhci.c b/qemu/roms/u-boot/drivers/mmc/zynq_sdhci.c new file mode 100644 index 000000000..fdce2c2c1 --- /dev/null +++ b/qemu/roms/u-boot/drivers/mmc/zynq_sdhci.c @@ -0,0 +1,63 @@ +/* + * (C) Copyright 2013 Inc. + * + * Xilinx Zynq SD Host Controller Interface + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <fdtdec.h> +#include <libfdt.h> +#include <malloc.h> +#include <sdhci.h> +#include <asm/arch/sys_proto.h> + +int zynq_sdhci_init(u32 regbase) +{ + struct sdhci_host *host = NULL; + + host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host)); + if (!host) { + printf("zynq_sdhci_init: sdhci_host malloc fail\n"); + return 1; + } + + host->name = "zynq_sdhci"; + host->ioaddr = (void *)regbase; + host->quirks = SDHCI_QUIRK_NO_CD | SDHCI_QUIRK_WAIT_SEND_CMD | + SDHCI_QUIRK_BROKEN_R1B; + host->version = sdhci_readw(host, SDHCI_HOST_VERSION); + + host->host_caps = MMC_MODE_HC; + + add_sdhci(host, 52000000, 52000000 >> 9); + return 0; +} + +#ifdef CONFIG_OF_CONTROL +int zynq_sdhci_of_init(const void *blob) +{ + int offset = 0; + u32 ret = 0; + u32 reg; + + debug("ZYNQ SDHCI: Initialization\n"); + + do { + offset = fdt_node_offset_by_compatible(blob, offset, + "arasan,sdhci-8.9a"); + if (offset != -1) { + reg = fdtdec_get_addr(blob, offset, "reg"); + if (reg != FDT_ADDR_T_NONE) { + ret |= zynq_sdhci_init(reg); + } else { + debug("ZYNQ SDHCI: Can't get base address\n"); + return -1; + } + } + } while (offset != -1); + + return ret; +} +#endif |