11144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz/* 21144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * drivers/mmc/host/sdhci-of-hlwd.c 31144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * 41144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Nintendo Wii Secure Digital Host Controller Interface. 51144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Copyright (C) 2009 The GameCube Linux Team 61144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Copyright (C) 2009 Albert Herranz 71144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * 81144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Based on sdhci-of-esdhc.c 91144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * 101144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Copyright (c) 2007 Freescale Semiconductor, Inc. 111144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Copyright (c) 2009 MontaVista Software, Inc. 121144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * 131144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Authors: Xiaobo Xie <X.Xie@freescale.com> 141144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Anton Vorontsov <avorontsov@ru.mvista.com> 151144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * 161144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * This program is free software; you can redistribute it and/or modify 171144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * it under the terms of the GNU General Public License as published by 181144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * the Free Software Foundation; either version 2 of the License, or (at 191144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * your option) any later version. 201144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz */ 211144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz 221144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz#include <linux/delay.h> 2388b47679746b81534002bcba42da97ab82b5d12aPaul Gortmaker#include <linux/module.h> 241144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz#include <linux/mmc/host.h> 2538576af1f8cad48446df47dcf404b197c9206dbaShawn Guo#include "sdhci-pltfm.h" 261144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz 271144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz/* 281144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * Ops and quirks for the Nintendo Wii SDHCI controllers. 291144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz */ 301144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz 311144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz/* 321144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz * We need a small delay after each write, or things go horribly wrong. 331144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz */ 341144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz#define SDHCI_HLWD_WRITE_DELAY 5 /* usecs */ 351144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz 361144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranzstatic void sdhci_hlwd_writel(struct sdhci_host *host, u32 val, int reg) 371144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz{ 381144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz sdhci_be32bs_writel(host, val, reg); 391144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz udelay(SDHCI_HLWD_WRITE_DELAY); 401144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz} 411144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz 421144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranzstatic void sdhci_hlwd_writew(struct sdhci_host *host, u16 val, int reg) 431144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz{ 441144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz sdhci_be32bs_writew(host, val, reg); 451144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz udelay(SDHCI_HLWD_WRITE_DELAY); 461144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz} 471144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz 481144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranzstatic void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg) 491144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz{ 501144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz sdhci_be32bs_writeb(host, val, reg); 511144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz udelay(SDHCI_HLWD_WRITE_DELAY); 521144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz} 531144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz 54e307148fd4f971cecfaebb516ee28e164948a24bShawn Guostatic struct sdhci_ops sdhci_hlwd_ops = { 55e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo .read_l = sdhci_be32bs_readl, 56e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo .read_w = sdhci_be32bs_readw, 57e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo .read_b = sdhci_be32bs_readb, 58e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo .write_l = sdhci_hlwd_writel, 59e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo .write_w = sdhci_hlwd_writew, 60e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo .write_b = sdhci_hlwd_writeb, 61e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo}; 62e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo 6338576af1f8cad48446df47dcf404b197c9206dbaShawn Guostatic struct sdhci_pltfm_data sdhci_hlwd_pdata = { 641144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | 651144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz SDHCI_QUIRK_32BIT_DMA_SIZE, 66e307148fd4f971cecfaebb516ee28e164948a24bShawn Guo .ops = &sdhci_hlwd_ops, 671144ab5d4b2da9f964d126105c6b3ced939eb073Albert Herranz}; 6838576af1f8cad48446df47dcf404b197c9206dbaShawn Guo 6938576af1f8cad48446df47dcf404b197c9206dbaShawn Guostatic int __devinit sdhci_hlwd_probe(struct platform_device *pdev) 7038576af1f8cad48446df47dcf404b197c9206dbaShawn Guo{ 7138576af1f8cad48446df47dcf404b197c9206dbaShawn Guo return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata); 7238576af1f8cad48446df47dcf404b197c9206dbaShawn Guo} 7338576af1f8cad48446df47dcf404b197c9206dbaShawn Guo 7438576af1f8cad48446df47dcf404b197c9206dbaShawn Guostatic int __devexit sdhci_hlwd_remove(struct platform_device *pdev) 7538576af1f8cad48446df47dcf404b197c9206dbaShawn Guo{ 7638576af1f8cad48446df47dcf404b197c9206dbaShawn Guo return sdhci_pltfm_unregister(pdev); 7738576af1f8cad48446df47dcf404b197c9206dbaShawn Guo} 7838576af1f8cad48446df47dcf404b197c9206dbaShawn Guo 7938576af1f8cad48446df47dcf404b197c9206dbaShawn Guostatic const struct of_device_id sdhci_hlwd_of_match[] = { 8038576af1f8cad48446df47dcf404b197c9206dbaShawn Guo { .compatible = "nintendo,hollywood-sdhci" }, 8138576af1f8cad48446df47dcf404b197c9206dbaShawn Guo { } 8238576af1f8cad48446df47dcf404b197c9206dbaShawn Guo}; 8338576af1f8cad48446df47dcf404b197c9206dbaShawn GuoMODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match); 8438576af1f8cad48446df47dcf404b197c9206dbaShawn Guo 8538576af1f8cad48446df47dcf404b197c9206dbaShawn Guostatic struct platform_driver sdhci_hlwd_driver = { 8638576af1f8cad48446df47dcf404b197c9206dbaShawn Guo .driver = { 8738576af1f8cad48446df47dcf404b197c9206dbaShawn Guo .name = "sdhci-hlwd", 8838576af1f8cad48446df47dcf404b197c9206dbaShawn Guo .owner = THIS_MODULE, 8938576af1f8cad48446df47dcf404b197c9206dbaShawn Guo .of_match_table = sdhci_hlwd_of_match, 9029495aa04a30c21565243c5b9c028510446d242cManuel Lauss .pm = SDHCI_PLTFM_PMOPS, 9138576af1f8cad48446df47dcf404b197c9206dbaShawn Guo }, 9238576af1f8cad48446df47dcf404b197c9206dbaShawn Guo .probe = sdhci_hlwd_probe, 9338576af1f8cad48446df47dcf404b197c9206dbaShawn Guo .remove = __devexit_p(sdhci_hlwd_remove), 9438576af1f8cad48446df47dcf404b197c9206dbaShawn Guo}; 9538576af1f8cad48446df47dcf404b197c9206dbaShawn Guo 96d1f81a64a4250bdd776978be06ae2b8e13ec7471Axel Linmodule_platform_driver(sdhci_hlwd_driver); 9738576af1f8cad48446df47dcf404b197c9206dbaShawn Guo 9838576af1f8cad48446df47dcf404b197c9206dbaShawn GuoMODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver"); 9938576af1f8cad48446df47dcf404b197c9206dbaShawn GuoMODULE_AUTHOR("The GameCube Linux Team, Albert Herranz"); 10038576af1f8cad48446df47dcf404b197c9206dbaShawn GuoMODULE_LICENSE("GPL v2"); 101