Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * drivers/mmc/host/sdhci-of-hlwd.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Nintendo Wii Secure Digital Host Controller Interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 2009 The GameCube Linux Team
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Copyright (C) 2009 Albert Herranz
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * Based on sdhci-of-esdhc.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * Copyright (c) 2007 Freescale Semiconductor, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * Copyright (c) 2009 MontaVista Software, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * Authors: Xiaobo Xie <X.Xie@freescale.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  *	    Anton Vorontsov <avorontsov@ru.mvista.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/mmc/host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "sdhci-pltfm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  * Ops and quirks for the Nintendo Wii SDHCI controllers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * We need a small delay after each write, or things go horribly wrong.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define SDHCI_HLWD_WRITE_DELAY	5 /* usecs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static void sdhci_hlwd_writel(struct sdhci_host *host, u32 val, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	sdhci_be32bs_writel(host, val, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	udelay(SDHCI_HLWD_WRITE_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static void sdhci_hlwd_writew(struct sdhci_host *host, u16 val, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	sdhci_be32bs_writew(host, val, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	udelay(SDHCI_HLWD_WRITE_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	sdhci_be32bs_writeb(host, val, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	udelay(SDHCI_HLWD_WRITE_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static const struct sdhci_ops sdhci_hlwd_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	.read_l = sdhci_be32bs_readl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	.read_w = sdhci_be32bs_readw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	.read_b = sdhci_be32bs_readb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	.write_l = sdhci_hlwd_writel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	.write_w = sdhci_hlwd_writew,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	.write_b = sdhci_hlwd_writeb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	.set_clock = sdhci_set_clock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	.set_bus_width = sdhci_set_bus_width,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	.reset = sdhci_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	.set_uhs_signaling = sdhci_set_uhs_signaling,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static const struct sdhci_pltfm_data sdhci_hlwd_pdata = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 		  SDHCI_QUIRK_32BIT_DMA_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	.ops = &sdhci_hlwd_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static int sdhci_hlwd_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 	return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static const struct of_device_id sdhci_hlwd_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	{ .compatible = "nintendo,hollywood-sdhci" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) MODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static struct platform_driver sdhci_hlwd_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 		.name = "sdhci-hlwd",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 		.of_match_table = sdhci_hlwd_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 		.pm = &sdhci_pltfm_pmops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 	.probe = sdhci_hlwd_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 	.remove = sdhci_pltfm_unregister,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) module_platform_driver(sdhci_hlwd_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) MODULE_LICENSE("GPL v2");