From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/mmc/host/sdhci-of-hlwd.c | 95 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 drivers/mmc/host/sdhci-of-hlwd.c (limited to 'drivers/mmc/host/sdhci-of-hlwd.c') diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c new file mode 100644 index 000000000..12675797b --- /dev/null +++ b/drivers/mmc/host/sdhci-of-hlwd.c @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * drivers/mmc/host/sdhci-of-hlwd.c + * + * Nintendo Wii Secure Digital Host Controller Interface. + * Copyright (C) 2009 The GameCube Linux Team + * Copyright (C) 2009 Albert Herranz + * + * Based on sdhci-of-esdhc.c + * + * Copyright (c) 2007 Freescale Semiconductor, Inc. + * Copyright (c) 2009 MontaVista Software, Inc. + * + * Authors: Xiaobo Xie + * Anton Vorontsov + */ + +#include +#include +#include +#include "sdhci-pltfm.h" + +/* + * Ops and quirks for the Nintendo Wii SDHCI controllers. + */ + +/* + * We need a small delay after each write, or things go horribly wrong. + */ +#define SDHCI_HLWD_WRITE_DELAY 5 /* usecs */ + +static void sdhci_hlwd_writel(struct sdhci_host *host, u32 val, int reg) +{ + sdhci_be32bs_writel(host, val, reg); + udelay(SDHCI_HLWD_WRITE_DELAY); +} + +static void sdhci_hlwd_writew(struct sdhci_host *host, u16 val, int reg) +{ + sdhci_be32bs_writew(host, val, reg); + udelay(SDHCI_HLWD_WRITE_DELAY); +} + +static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg) +{ + sdhci_be32bs_writeb(host, val, reg); + udelay(SDHCI_HLWD_WRITE_DELAY); +} + +static const struct sdhci_ops sdhci_hlwd_ops = { + .read_l = sdhci_be32bs_readl, + .read_w = sdhci_be32bs_readw, + .read_b = sdhci_be32bs_readb, + .write_l = sdhci_hlwd_writel, + .write_w = sdhci_hlwd_writew, + .write_b = sdhci_hlwd_writeb, + .set_clock = sdhci_set_clock, + .set_bus_width = sdhci_set_bus_width, + .reset = sdhci_reset, + .set_uhs_signaling = sdhci_set_uhs_signaling, +}; + +static const struct sdhci_pltfm_data sdhci_hlwd_pdata = { + .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | + SDHCI_QUIRK_32BIT_DMA_SIZE, + .ops = &sdhci_hlwd_ops, +}; + +static int sdhci_hlwd_probe(struct platform_device *pdev) +{ + return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata, 0); +} + +static const struct of_device_id sdhci_hlwd_of_match[] = { + { .compatible = "nintendo,hollywood-sdhci" }, + { } +}; +MODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match); + +static struct platform_driver sdhci_hlwd_driver = { + .driver = { + .name = "sdhci-hlwd", + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + .of_match_table = sdhci_hlwd_of_match, + .pm = &sdhci_pltfm_pmops, + }, + .probe = sdhci_hlwd_probe, + .remove = sdhci_pltfm_unregister, +}; + +module_platform_driver(sdhci_hlwd_driver); + +MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver"); +MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3