1 // SPDX-License-Identifier: GPL-2.0-only
14 #include "sdhci-pltfm.h"
36 	u32 val = readl(host->ioaddr + reg);  in sdhci_iproc_readl()
39 		 mmc_hostname(host->mmc), reg, val);  in sdhci_iproc_readl()
50 	if ((reg == SDHCI_TRANSFER_MODE) && iproc_host->is_cmd_shadowed) {  in sdhci_iproc_readw()
52 		val = iproc_host->shadow_cmd;  in sdhci_iproc_readw()
54 		   iproc_host->is_blk_shadowed) {  in sdhci_iproc_readw()
56 		val = iproc_host->shadow_blk;  in sdhci_iproc_readw()
74 		 mmc_hostname(host->mmc), reg, val);  in sdhci_iproc_writel()
76 	writel(val, host->ioaddr + reg);  in sdhci_iproc_writel()
78 	if (host->clock <= 400000) {  in sdhci_iproc_writel()
79 		/* Round up to micro-second four SD clock delay */  in sdhci_iproc_writel()
80 		if (host->clock)  in sdhci_iproc_writel()
81 			udelay((4 * 1000000 + host->clock - 1) / host->clock);  in sdhci_iproc_writel()
89  * writes to the same register that are within two SD-card clock cycles of
91  * register does not have this problem, which is just as well - otherwise we'd
95  * controller with 32-bit writes.  So two different 16-bit registers are
103  * Then, write the BLOCK_SIZE+BLOCK_COUNT in a single 32-bit write followed
104  * by the TRANSFER+COMMAND in another 32-bit write.
116 		if (iproc_host->is_blk_shadowed) {  in sdhci_iproc_writew()
117 			sdhci_iproc_writel(host, iproc_host->shadow_blk,  in sdhci_iproc_writew()
119 			iproc_host->is_blk_shadowed = false;  in sdhci_iproc_writew()
121 		oldval = iproc_host->shadow_cmd;  in sdhci_iproc_writew()
122 		iproc_host->is_cmd_shadowed = false;  in sdhci_iproc_writew()
124 		   iproc_host->is_blk_shadowed) {  in sdhci_iproc_writew()
126 		oldval = iproc_host->shadow_blk;  in sdhci_iproc_writew()
135 		iproc_host->shadow_cmd = newval;  in sdhci_iproc_writew()
136 		iproc_host->is_cmd_shadowed = true;  in sdhci_iproc_writew()
139 		iproc_host->shadow_blk = newval;  in sdhci_iproc_writew()
140 		iproc_host->is_blk_shadowed = true;  in sdhci_iproc_writew()
142 		/* Command or other regular 32-bit write */  in sdhci_iproc_writew()
161 	if (pltfm_host->clk)  in sdhci_iproc_get_max_clock()
164 		return pltfm_host->clock;  in sdhci_iproc_get_max_clock()
173  *  - No SD card plugged in, polling thread is running, probing cards at
175  *  - BCM2711's core clock configured at 500MHz or more
322 	{ .compatible = "brcm,bcm2835-sdhci", .data = &bcm2835_data },
323 	{ .compatible = "brcm,bcm2711-emmc2", .data = &bcm2711_data },
324 	{ .compatible = "brcm,sdhci-iproc-cygnus", .data = &iproc_cygnus_data},
325 	{ .compatible = "brcm,sdhci-iproc", .data = &iproc_data },
326 	{ .compatible = "brcm,bcm7211a0-sdhci", .data = &bcm7211a0_data },
360 	struct device *dev = &pdev->dev;  in sdhci_iproc_probe()
369 		return -ENODEV;  in sdhci_iproc_probe()
371 	host = sdhci_pltfm_init(pdev, iproc_data->pdata, sizeof(*iproc_host));  in sdhci_iproc_probe()
378 	iproc_host->data = iproc_data;  in sdhci_iproc_probe()
380 	ret = mmc_of_parse(host->mmc);  in sdhci_iproc_probe()
386 	host->mmc->caps |= iproc_host->data->mmc_caps;  in sdhci_iproc_probe()
388 	if (dev->of_node) {  in sdhci_iproc_probe()
389 		pltfm_host->clk = devm_clk_get_enabled(dev, NULL);  in sdhci_iproc_probe()
390 		if (IS_ERR(pltfm_host->clk)) {  in sdhci_iproc_probe()
391 			ret = PTR_ERR(pltfm_host->clk);  in sdhci_iproc_probe()
396 	if (iproc_host->data->missing_caps) {  in sdhci_iproc_probe()
398 				  &iproc_host->data->caps,  in sdhci_iproc_probe()
399 				  &iproc_host->data->caps1);  in sdhci_iproc_probe()
415 	sdhci_pltfm_suspend(&pdev->dev);  in sdhci_iproc_shutdown()
420 		.name = "sdhci-iproc",
424 		.pm = &sdhci_pltfm_pmops,