Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 1 | /* |
| 2 | * SuperH Mobile SDHI |
| 3 | * |
| 4 | * Copyright (C) 2009 Magnus Damm |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * Based on "Compaq ASIC3 support": |
| 11 | * |
| 12 | * Copyright 2001 Compaq Computer Corporation. |
| 13 | * Copyright 2004-2005 Phil Blundell |
| 14 | * Copyright 2007-2008 OpenedHand Ltd. |
| 15 | * |
| 16 | * Authors: Phil Blundell <pb@handhelds.org>, |
| 17 | * Samuel Ortiz <sameo@openedhand.com> |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/clk.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 23 | #include <linux/slab.h> |
Guennadi Liakhovetski | c7bb448 | 2012-05-01 18:03:43 +0200 | [diff] [blame] | 24 | #include <linux/mod_devicetable.h> |
Paul Gortmaker | 88b4767 | 2011-07-03 15:15:51 -0400 | [diff] [blame] | 25 | #include <linux/module.h> |
Guennadi Liakhovetski | 5a00a97 | 2013-02-15 16:13:56 +0100 | [diff] [blame] | 26 | #include <linux/of_device.h> |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 27 | #include <linux/platform_device.h> |
Magnus Damm | 3c49e81 | 2010-02-22 13:37:09 +0900 | [diff] [blame] | 28 | #include <linux/mmc/host.h> |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 29 | #include <linux/mmc/sh_mobile_sdhi.h> |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 30 | #include <linux/mfd/tmio.h> |
Guennadi Liakhovetski | 056676d | 2010-05-19 18:34:16 +0000 | [diff] [blame] | 31 | #include <linux/sh_dma.h> |
Simon Horman | 973ed3a | 2011-06-21 08:00:10 +0900 | [diff] [blame] | 32 | #include <linux/delay.h> |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 33 | |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 34 | #include "tmio_mmc.h" |
| 35 | |
Kuninori Morimoto | e3c418f | 2013-11-20 00:31:13 -0800 | [diff] [blame] | 36 | #define EXT_ACC 0xe4 |
| 37 | |
Guennadi Liakhovetski | 5a00a97 | 2013-02-15 16:13:56 +0100 | [diff] [blame] | 38 | struct sh_mobile_sdhi_of_data { |
| 39 | unsigned long tmio_flags; |
Kuninori Morimoto | b3a5d4c | 2014-02-20 16:54:58 -0800 | [diff] [blame] | 40 | unsigned long capabilities; |
Kuninori Morimoto | 423f6c2 | 2014-02-20 16:55:27 -0800 | [diff] [blame^] | 41 | unsigned long capabilities2; |
Guennadi Liakhovetski | 5a00a97 | 2013-02-15 16:13:56 +0100 | [diff] [blame] | 42 | }; |
| 43 | |
| 44 | static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = { |
| 45 | { |
| 46 | .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT, |
| 47 | }, |
| 48 | }; |
| 49 | |
Kuninori Morimoto | b3a5d4c | 2014-02-20 16:54:58 -0800 | [diff] [blame] | 50 | static const struct sh_mobile_sdhi_of_data of_rcar_gen1_compatible = { |
| 51 | .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE, |
| 52 | .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, |
| 53 | }; |
| 54 | |
Kuninori Morimoto | 423f6c2 | 2014-02-20 16:55:27 -0800 | [diff] [blame^] | 55 | static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = { |
| 56 | .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE, |
| 57 | .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, |
| 58 | .capabilities2 = MMC_CAP2_NO_MULTI_READ, |
| 59 | }; |
| 60 | |
Kuninori Morimoto | 2772ef3 | 2014-02-20 16:54:44 -0800 | [diff] [blame] | 61 | static const struct of_device_id sh_mobile_sdhi_of_match[] = { |
| 62 | { .compatible = "renesas,sdhi-shmobile" }, |
| 63 | { .compatible = "renesas,sdhi-sh7372" }, |
| 64 | { .compatible = "renesas,sdhi-sh73a0", .data = &sh_mobile_sdhi_of_cfg[0], }, |
| 65 | { .compatible = "renesas,sdhi-r8a73a4", .data = &sh_mobile_sdhi_of_cfg[0], }, |
| 66 | { .compatible = "renesas,sdhi-r8a7740", .data = &sh_mobile_sdhi_of_cfg[0], }, |
Kuninori Morimoto | b3a5d4c | 2014-02-20 16:54:58 -0800 | [diff] [blame] | 67 | { .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, }, |
Kuninori Morimoto | 81bbbc7 | 2014-02-20 16:55:12 -0800 | [diff] [blame] | 68 | { .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, }, |
Kuninori Morimoto | 423f6c2 | 2014-02-20 16:55:27 -0800 | [diff] [blame^] | 69 | { .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, }, |
Kuninori Morimoto | 2772ef3 | 2014-02-20 16:54:44 -0800 | [diff] [blame] | 70 | {}, |
| 71 | }; |
| 72 | MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match); |
| 73 | |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 74 | struct sh_mobile_sdhi { |
| 75 | struct clk *clk; |
| 76 | struct tmio_mmc_data mmc_data; |
Guennadi Liakhovetski | 056676d | 2010-05-19 18:34:16 +0000 | [diff] [blame] | 77 | struct tmio_mmc_dma dma_priv; |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 78 | }; |
| 79 | |
Guennadi Liakhovetski | 56c4928 | 2012-06-20 19:10:32 +0200 | [diff] [blame] | 80 | static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int *f) |
| 81 | { |
Jingoo Han | 6e2c0f3 | 2013-06-03 13:41:03 +0900 | [diff] [blame] | 82 | struct mmc_host *mmc = platform_get_drvdata(pdev); |
Guennadi Liakhovetski | 56c4928 | 2012-06-20 19:10:32 +0200 | [diff] [blame] | 83 | struct tmio_mmc_host *host = mmc_priv(mmc); |
| 84 | struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data); |
Laurent Pinchart | 00fb3d2 | 2013-10-28 23:49:25 +0100 | [diff] [blame] | 85 | int ret = clk_prepare_enable(priv->clk); |
Guennadi Liakhovetski | 56c4928 | 2012-06-20 19:10:32 +0200 | [diff] [blame] | 86 | if (ret < 0) |
| 87 | return ret; |
| 88 | |
| 89 | *f = clk_get_rate(priv->clk); |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | static void sh_mobile_sdhi_clk_disable(struct platform_device *pdev) |
| 94 | { |
Jingoo Han | 6e2c0f3 | 2013-06-03 13:41:03 +0900 | [diff] [blame] | 95 | struct mmc_host *mmc = platform_get_drvdata(pdev); |
Guennadi Liakhovetski | 56c4928 | 2012-06-20 19:10:32 +0200 | [diff] [blame] | 96 | struct tmio_mmc_host *host = mmc_priv(mmc); |
| 97 | struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data); |
Laurent Pinchart | 00fb3d2 | 2013-10-28 23:49:25 +0100 | [diff] [blame] | 98 | clk_disable_unprepare(priv->clk); |
Guennadi Liakhovetski | 56c4928 | 2012-06-20 19:10:32 +0200 | [diff] [blame] | 99 | } |
| 100 | |
Simon Horman | 973ed3a | 2011-06-21 08:00:10 +0900 | [diff] [blame] | 101 | static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host) |
| 102 | { |
| 103 | int timeout = 1000; |
| 104 | |
| 105 | while (--timeout && !(sd_ctrl_read16(host, CTL_STATUS2) & (1 << 13))) |
| 106 | udelay(1); |
| 107 | |
| 108 | if (!timeout) { |
| 109 | dev_warn(host->pdata->dev, "timeout waiting for SD bus idle\n"); |
| 110 | return -EBUSY; |
| 111 | } |
| 112 | |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr) |
| 117 | { |
| 118 | switch (addr) |
| 119 | { |
| 120 | case CTL_SD_CMD: |
| 121 | case CTL_STOP_INTERNAL_ACTION: |
| 122 | case CTL_XFER_BLK_COUNT: |
| 123 | case CTL_SD_CARD_CLK_CTL: |
| 124 | case CTL_SD_XFER_LEN: |
| 125 | case CTL_SD_MEM_CARD_OPT: |
| 126 | case CTL_TRANSACTION_CTL: |
| 127 | case CTL_DMA_ENABLE: |
| 128 | return sh_mobile_sdhi_wait_idle(host); |
| 129 | } |
| 130 | |
| 131 | return 0; |
| 132 | } |
| 133 | |
Guennadi Liakhovetski | 7f52421 | 2012-03-09 10:16:00 +0100 | [diff] [blame] | 134 | static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev) |
| 135 | { |
Jingoo Han | 6e2c0f3 | 2013-06-03 13:41:03 +0900 | [diff] [blame] | 136 | mmc_detect_change(platform_get_drvdata(pdev), msecs_to_jiffies(100)); |
Guennadi Liakhovetski | 7f52421 | 2012-03-09 10:16:00 +0100 | [diff] [blame] | 137 | } |
| 138 | |
| 139 | static const struct sh_mobile_sdhi_ops sdhi_ops = { |
| 140 | .cd_wakeup = sh_mobile_sdhi_cd_wakeup, |
| 141 | }; |
| 142 | |
Bill Pemberton | c3be1ef | 2012-11-19 13:23:06 -0500 | [diff] [blame] | 143 | static int sh_mobile_sdhi_probe(struct platform_device *pdev) |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 144 | { |
Guennadi Liakhovetski | 5a00a97 | 2013-02-15 16:13:56 +0100 | [diff] [blame] | 145 | const struct of_device_id *of_id = |
| 146 | of_match_device(sh_mobile_sdhi_of_match, &pdev->dev); |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 147 | struct sh_mobile_sdhi *priv; |
Guennadi Liakhovetski | 056676d | 2010-05-19 18:34:16 +0000 | [diff] [blame] | 148 | struct tmio_mmc_data *mmc_data; |
| 149 | struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 150 | struct tmio_mmc_host *host; |
Kuninori Morimoto | 3b159a6 | 2013-11-20 00:30:55 -0800 | [diff] [blame] | 151 | struct resource *res; |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 152 | int irq, ret, i = 0; |
| 153 | bool multiplexed_isr = true; |
Guennadi Liakhovetski | 87ae7bb | 2013-04-26 17:47:19 +0200 | [diff] [blame] | 154 | struct tmio_mmc_dma *dma_priv; |
Kuninori Morimoto | e3c418f | 2013-11-20 00:31:13 -0800 | [diff] [blame] | 155 | u16 ver; |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 156 | |
Kuninori Morimoto | 3b159a6 | 2013-11-20 00:30:55 -0800 | [diff] [blame] | 157 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 158 | if (!res) |
| 159 | return -EINVAL; |
| 160 | |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 161 | priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL); |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 162 | if (priv == NULL) { |
| 163 | dev_err(&pdev->dev, "kzalloc failed\n"); |
| 164 | return -ENOMEM; |
| 165 | } |
| 166 | |
Guennadi Liakhovetski | 056676d | 2010-05-19 18:34:16 +0000 | [diff] [blame] | 167 | mmc_data = &priv->mmc_data; |
Guennadi Liakhovetski | 87ae7bb | 2013-04-26 17:47:19 +0200 | [diff] [blame] | 168 | dma_priv = &priv->dma_priv; |
Guennadi Liakhovetski | 056676d | 2010-05-19 18:34:16 +0000 | [diff] [blame] | 169 | |
Guennadi Liakhovetski | c7bb448 | 2012-05-01 18:03:43 +0200 | [diff] [blame] | 170 | if (p) { |
Guennadi Liakhovetski | c7bb448 | 2012-05-01 18:03:43 +0200 | [diff] [blame] | 171 | if (p->init) { |
| 172 | ret = p->init(pdev, &sdhi_ops); |
| 173 | if (ret) |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 174 | return ret; |
Guennadi Liakhovetski | c7bb448 | 2012-05-01 18:03:43 +0200 | [diff] [blame] | 175 | } |
Bastian Hecht | e82b4ac | 2012-03-16 12:19:29 -0400 | [diff] [blame] | 176 | } |
| 177 | |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 178 | priv->clk = devm_clk_get(&pdev->dev, NULL); |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 179 | if (IS_ERR(priv->clk)) { |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 180 | ret = PTR_ERR(priv->clk); |
Guennadi Liakhovetski | 56ae1ad | 2012-11-28 10:24:21 +0100 | [diff] [blame] | 181 | dev_err(&pdev->dev, "cannot get clock: %d\n", ret); |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 182 | goto eclkget; |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 183 | } |
| 184 | |
Guennadi Liakhovetski | 56c4928 | 2012-06-20 19:10:32 +0200 | [diff] [blame] | 185 | mmc_data->clk_enable = sh_mobile_sdhi_clk_enable; |
| 186 | mmc_data->clk_disable = sh_mobile_sdhi_clk_disable; |
Guennadi Liakhovetski | 056676d | 2010-05-19 18:34:16 +0000 | [diff] [blame] | 187 | mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED; |
Guennadi Liakhovetski | 7b95213 | 2013-02-15 16:13:50 +0100 | [diff] [blame] | 188 | mmc_data->write16_hook = sh_mobile_sdhi_write16_hook; |
Guennadi Liakhovetski | bb0fe53 | 2010-05-19 18:37:36 +0000 | [diff] [blame] | 189 | if (p) { |
Guennadi Liakhovetski | f87c20a | 2010-05-19 18:36:08 +0000 | [diff] [blame] | 190 | mmc_data->flags = p->tmio_flags; |
Guennadi Liakhovetski | bb0fe53 | 2010-05-19 18:37:36 +0000 | [diff] [blame] | 191 | mmc_data->ocr_mask = p->tmio_ocr_mask; |
Arnd Hannemann | 998283e | 2010-08-24 17:27:00 +0200 | [diff] [blame] | 192 | mmc_data->capabilities |= p->tmio_caps; |
Guennadi Liakhovetski | d7d8d50 | 2012-05-23 11:05:33 +0200 | [diff] [blame] | 193 | mmc_data->capabilities2 |= p->tmio_caps2; |
Guennadi Liakhovetski | 58126c8 | 2012-02-09 22:57:10 +0100 | [diff] [blame] | 194 | mmc_data->cd_gpio = p->cd_gpio; |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 195 | |
Guennadi Liakhovetski | 3e71337 | 2011-05-24 12:24:07 +0200 | [diff] [blame] | 196 | if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0) { |
Guennadi Liakhovetski | eec95ee | 2013-04-26 17:47:18 +0200 | [diff] [blame] | 197 | /* |
| 198 | * Yes, we have to provide slave IDs twice to TMIO: |
| 199 | * once as a filter parameter and once for channel |
| 200 | * configuration as an explicit slave ID |
| 201 | */ |
| 202 | dma_priv->chan_priv_tx = (void *)p->dma_slave_tx; |
| 203 | dma_priv->chan_priv_rx = (void *)p->dma_slave_rx; |
| 204 | dma_priv->slave_id_tx = p->dma_slave_tx; |
| 205 | dma_priv->slave_id_rx = p->dma_slave_rx; |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 206 | } |
Guennadi Liakhovetski | bb0fe53 | 2010-05-19 18:37:36 +0000 | [diff] [blame] | 207 | } |
Guennadi Liakhovetski | 056676d | 2010-05-19 18:34:16 +0000 | [diff] [blame] | 208 | |
Guennadi Liakhovetski | 87ae7bb | 2013-04-26 17:47:19 +0200 | [diff] [blame] | 209 | dma_priv->alignment_shift = 1; /* 2-byte alignment */ |
| 210 | dma_priv->filter = shdma_chan_filter; |
| 211 | |
| 212 | mmc_data->dma = dma_priv; |
| 213 | |
Yusuke Goda | f1334fb | 2010-08-30 11:50:19 +0100 | [diff] [blame] | 214 | /* |
| 215 | * All SDHI blocks support 2-byte and larger block sizes in 4-bit |
| 216 | * bus width mode. |
| 217 | */ |
| 218 | mmc_data->flags |= TMIO_MMC_BLKSZ_2BYTES; |
| 219 | |
Arnd Hannemann | 23b6607 | 2010-12-28 23:22:32 +0100 | [diff] [blame] | 220 | /* |
| 221 | * All SDHI blocks support SDIO IRQ signalling. |
| 222 | */ |
| 223 | mmc_data->flags |= TMIO_MMC_SDIO_IRQ; |
| 224 | |
Guennadi Liakhovetski | 5a00a97 | 2013-02-15 16:13:56 +0100 | [diff] [blame] | 225 | if (of_id && of_id->data) { |
| 226 | const struct sh_mobile_sdhi_of_data *of_data = of_id->data; |
| 227 | mmc_data->flags |= of_data->tmio_flags; |
Kuninori Morimoto | b3a5d4c | 2014-02-20 16:54:58 -0800 | [diff] [blame] | 228 | mmc_data->capabilities |= of_data->capabilities; |
Kuninori Morimoto | 423f6c2 | 2014-02-20 16:55:27 -0800 | [diff] [blame^] | 229 | mmc_data->capabilities2 |= of_data->capabilities2; |
Guennadi Liakhovetski | 5a00a97 | 2013-02-15 16:13:56 +0100 | [diff] [blame] | 230 | } |
| 231 | |
Kuninori Morimoto | 3b159a6 | 2013-11-20 00:30:55 -0800 | [diff] [blame] | 232 | /* SD control register space size is 0x100, 0x200 for bus_shift=1 */ |
| 233 | mmc_data->bus_shift = resource_size(res) >> 9; |
| 234 | |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 235 | ret = tmio_mmc_host_probe(&host, pdev, mmc_data); |
| 236 | if (ret < 0) |
| 237 | goto eprobe; |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 238 | |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 239 | /* |
Kuninori Morimoto | e3c418f | 2013-11-20 00:31:13 -0800 | [diff] [blame] | 240 | * FIXME: |
| 241 | * this Workaround can be more clever method |
| 242 | */ |
| 243 | ver = sd_ctrl_read16(host, CTL_VERSION); |
| 244 | if (ver == 0xCB0D) |
| 245 | sd_ctrl_write16(host, EXT_ACC, 1); |
| 246 | |
| 247 | /* |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 248 | * Allow one or more specific (named) ISRs or |
| 249 | * one or more multiplexed (un-named) ISRs. |
| 250 | */ |
| 251 | |
| 252 | irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_CARD_DETECT); |
| 253 | if (irq >= 0) { |
| 254 | multiplexed_isr = false; |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 255 | ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_card_detect_irq, 0, |
Magnus Damm | d6a1f86 | 2011-05-06 11:02:45 +0000 | [diff] [blame] | 256 | dev_name(&pdev->dev), host); |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 257 | if (ret) |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 258 | goto eirq; |
Magnus Damm | 8e7bfdb | 2011-05-06 11:02:33 +0000 | [diff] [blame] | 259 | } |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 260 | |
| 261 | irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDIO); |
| 262 | if (irq >= 0) { |
| 263 | multiplexed_isr = false; |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 264 | ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdio_irq, 0, |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 265 | dev_name(&pdev->dev), host); |
| 266 | if (ret) |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 267 | goto eirq; |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDCARD); |
| 271 | if (irq >= 0) { |
| 272 | multiplexed_isr = false; |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 273 | ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdcard_irq, 0, |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 274 | dev_name(&pdev->dev), host); |
| 275 | if (ret) |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 276 | goto eirq; |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 277 | } else if (!multiplexed_isr) { |
| 278 | dev_err(&pdev->dev, |
| 279 | "Principal SD-card IRQ is missing among named interrupts\n"); |
| 280 | ret = irq; |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 281 | goto eirq; |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | if (multiplexed_isr) { |
| 285 | while (1) { |
| 286 | irq = platform_get_irq(pdev, i); |
| 287 | if (irq < 0) |
| 288 | break; |
| 289 | i++; |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 290 | ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0, |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 291 | dev_name(&pdev->dev), host); |
| 292 | if (ret) |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 293 | goto eirq; |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | /* There must be at least one IRQ source */ |
Wei Yongjun | 7913ae7 | 2013-05-28 13:26:50 +0800 | [diff] [blame] | 297 | if (!i) { |
| 298 | ret = irq; |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 299 | goto eirq; |
Wei Yongjun | 7913ae7 | 2013-05-28 13:26:50 +0800 | [diff] [blame] | 300 | } |
Simon Horman | d5098cb | 2011-08-26 10:42:39 +0200 | [diff] [blame] | 301 | } |
| 302 | |
Magnus Damm | 1f7d681 | 2011-05-06 11:02:41 +0000 | [diff] [blame] | 303 | dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n", |
| 304 | mmc_hostname(host->mmc), (unsigned long) |
Guennadi Liakhovetski | 58126c8 | 2012-02-09 22:57:10 +0100 | [diff] [blame] | 305 | (platform_get_resource(pdev, IORESOURCE_MEM, 0)->start), |
Guennadi Liakhovetski | 369213b | 2012-11-28 10:24:13 +0100 | [diff] [blame] | 306 | host->mmc->f_max / 1000000); |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 307 | |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 308 | return ret; |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 309 | |
Guennadi Liakhovetski | ac51b96 | 2013-02-15 16:13:58 +0100 | [diff] [blame] | 310 | eirq: |
Magnus Damm | 8e7bfdb | 2011-05-06 11:02:33 +0000 | [diff] [blame] | 311 | tmio_mmc_host_remove(host); |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 312 | eprobe: |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 313 | eclkget: |
Guennadi Liakhovetski | c7bb448 | 2012-05-01 18:03:43 +0200 | [diff] [blame] | 314 | if (p && p->cleanup) |
Bastian Hecht | e82b4ac | 2012-03-16 12:19:29 -0400 | [diff] [blame] | 315 | p->cleanup(pdev); |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 316 | return ret; |
| 317 | } |
| 318 | |
| 319 | static int sh_mobile_sdhi_remove(struct platform_device *pdev) |
| 320 | { |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 321 | struct mmc_host *mmc = platform_get_drvdata(pdev); |
| 322 | struct tmio_mmc_host *host = mmc_priv(mmc); |
Guennadi Liakhovetski | 2595880 | 2011-05-11 16:51:15 +0000 | [diff] [blame] | 323 | struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 324 | |
Guennadi Liakhovetski | 742a0c7 | 2011-05-27 16:54:05 +0200 | [diff] [blame] | 325 | tmio_mmc_host_remove(host); |
| 326 | |
Guennadi Liakhovetski | c7bb448 | 2012-05-01 18:03:43 +0200 | [diff] [blame] | 327 | if (p && p->cleanup) |
Bastian Hecht | e82b4ac | 2012-03-16 12:19:29 -0400 | [diff] [blame] | 328 | p->cleanup(pdev); |
| 329 | |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 330 | return 0; |
| 331 | } |
| 332 | |
Guennadi Liakhovetski | e6ee718 | 2011-05-05 16:13:12 +0000 | [diff] [blame] | 333 | static const struct dev_pm_ops tmio_mmc_dev_pm_ops = { |
Ulf Hansson | 4e262d7 | 2013-10-23 14:51:31 +0200 | [diff] [blame] | 334 | SET_SYSTEM_SLEEP_PM_OPS(tmio_mmc_host_suspend, tmio_mmc_host_resume) |
| 335 | SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend, |
| 336 | tmio_mmc_host_runtime_resume, |
| 337 | NULL) |
Guennadi Liakhovetski | e6ee718 | 2011-05-05 16:13:12 +0000 | [diff] [blame] | 338 | }; |
| 339 | |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 340 | static struct platform_driver sh_mobile_sdhi_driver = { |
| 341 | .driver = { |
| 342 | .name = "sh_mobile_sdhi", |
| 343 | .owner = THIS_MODULE, |
Guennadi Liakhovetski | e6ee718 | 2011-05-05 16:13:12 +0000 | [diff] [blame] | 344 | .pm = &tmio_mmc_dev_pm_ops, |
Guennadi Liakhovetski | c7bb448 | 2012-05-01 18:03:43 +0200 | [diff] [blame] | 345 | .of_match_table = sh_mobile_sdhi_of_match, |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 346 | }, |
| 347 | .probe = sh_mobile_sdhi_probe, |
Bill Pemberton | 0433c14 | 2012-11-19 13:20:26 -0500 | [diff] [blame] | 348 | .remove = sh_mobile_sdhi_remove, |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 349 | }; |
| 350 | |
Axel Lin | d1f81a6 | 2011-11-26 12:55:43 +0800 | [diff] [blame] | 351 | module_platform_driver(sh_mobile_sdhi_driver); |
Magnus Damm | a87d563 | 2009-10-02 02:22:09 +0000 | [diff] [blame] | 352 | |
| 353 | MODULE_DESCRIPTION("SuperH Mobile SDHI driver"); |
| 354 | MODULE_AUTHOR("Magnus Damm"); |
| 355 | MODULE_LICENSE("GPL v2"); |
Guennadi Liakhovetski | 42051e8 | 2011-03-14 09:52:33 +0100 | [diff] [blame] | 356 | MODULE_ALIAS("platform:sh_mobile_sdhi"); |