2  * Freescale eSDHC controller driver.
28 #include "sdhci-esdhc.h"
66 	{ .compatible = "fsl,ls1021a-esdhc", .data = &ls1021a_esdhc_clk},
67 	{ .compatible = "fsl,ls1046a-esdhc", .data = &ls1046a_esdhc_clk},
68 	{ .compatible = "fsl,ls1012a-esdhc", .data = &ls1012a_esdhc_clk},
69 	{ .compatible = "fsl,p1010-esdhc",   .data = &p1010_esdhc_clk},
70 	{ .compatible = "fsl,mpc8379-esdhc" },
71 	{ .compatible = "fsl,mpc8536-esdhc" },
72 	{ .compatible = "fsl,esdhc" },
86  * esdhc_read*_fixup - Fixup the value read from incompatible eSDHC register
91  * @value: 32bit eSDHC register value on spec_reg address
93  * In SD spec, there are 8/16/32/64 bits registers, while all of eSDHC
95  * address, register function, bit position and function between eSDHC spec
104 	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);  in esdhc_readl_fixup()  local
108 	 * The bit of ADMA flag in eSDHC is not compatible with standard  in esdhc_readl_fixup()
110 	 * supported by eSDHC.  in esdhc_readl_fixup()
111 	 * And for many FSL eSDHC controller, the reset value of field  in esdhc_readl_fixup()
116 		if (esdhc->vendor_ver > VENDOR_V_22) {  in esdhc_readl_fixup()
154 	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);  in esdhc_readw_fixup()  local
162 	/* Workaround for T4240-R1.0-R2.0 eSDHC which has incorrect  in esdhc_readw_fixup()
166 	    (esdhc->quirk_incorrect_hostver))  in esdhc_readw_fixup()
196  *			written into eSDHC register.
201  * @old_value: 32bit eSDHC register value on spec_reg address
203  * In SD spec, there are 8/16/32/64 bits registers, while all of eSDHC
205  * address, register function, bit position and function between eSDHC spec
271 	 * eSDHC doesn't have a standard power control register, so we do  in esdhc_writeb_fixup()
450 	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);  in esdhc_of_adma_workaround()  local
457 		     (esdhc->vendor_ver == VENDOR_V_23);  in esdhc_of_adma_workaround()
478 	if (of_device_is_compatible(dev->of_node, "fsl,ls1043a-esdhc") ||  in esdhc_of_enable_dma()
479 	    of_device_is_compatible(dev->of_node, "fsl,ls1046a-esdhc"))  in esdhc_of_enable_dma()
496 	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);  in esdhc_of_get_max_clock()  local
498 	if (esdhc->peripheral_clock)  in esdhc_of_get_max_clock()
499 		return esdhc->peripheral_clock;  in esdhc_of_get_max_clock()
507 	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);  in esdhc_of_get_min_clock()  local
510 	if (esdhc->peripheral_clock)  in esdhc_of_get_min_clock()
511 		clock = esdhc->peripheral_clock;  in esdhc_of_get_min_clock()
551 	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);  in esdhc_of_set_clock()  local
566 	if (esdhc->vendor_ver < VENDOR_V_23)  in esdhc_of_set_clock()
570 		esdhc->clk_fixup && host->mmc->ios.timing == MMC_TIMING_LEGACY)  in esdhc_of_set_clock()
571 		fixup = esdhc->clk_fixup->sd_dflt_max_clk;  in esdhc_of_set_clock()
572 	else if (esdhc->clk_fixup)  in esdhc_of_set_clock()
573 		fixup = esdhc->clk_fixup->max_clk[host->mmc->ios.timing];  in esdhc_of_set_clock()
840 	struct sdhci_esdhc *esdhc;  in esdhc_init()  local
847 	esdhc = sdhci_pltfm_priv(pltfm_host);  in esdhc_init()
850 	esdhc->vendor_ver = (host_ver & SDHCI_VENDOR_VER_MASK) >>  in esdhc_init()
852 	esdhc->spec_ver = host_ver & SDHCI_SPEC_VER_MASK;  in esdhc_init()
854 		esdhc->quirk_incorrect_hostver = true;  in esdhc_init()
856 		esdhc->quirk_incorrect_hostver = false;  in esdhc_init()
860 		esdhc->clk_fixup = match->data;  in esdhc_init()
865 		 * esdhc->peripheral_clock would be assigned with a value  in esdhc_init()
866 		 * which is eSDHC base clock when use periperal clock.  in esdhc_init()
868 		 * peripheral clock while the eSDHC base clock is 1/2  in esdhc_init()
871 		if (of_device_is_compatible(np, "fsl,ls1046a-esdhc"))  in esdhc_init()
872 			esdhc->peripheral_clock = clk_get_rate(clk) / 2;  in esdhc_init()
874 			esdhc->peripheral_clock = clk_get_rate(clk);  in esdhc_init()
879 	if (esdhc->peripheral_clock) {  in esdhc_init()
893 	struct sdhci_esdhc *esdhc;  in sdhci_esdhc_probe()  local
918 	esdhc = sdhci_pltfm_priv(pltfm_host);  in sdhci_esdhc_probe()
919 	if (esdhc->vendor_ver == VENDOR_V_22)  in sdhci_esdhc_probe()
922 	if (esdhc->vendor_ver > VENDOR_V_22)  in sdhci_esdhc_probe()
925 	if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc")) {  in sdhci_esdhc_probe()
930 	if (of_device_is_compatible(np, "fsl,p5040-esdhc") ||  in sdhci_esdhc_probe()
931 	    of_device_is_compatible(np, "fsl,p5020-esdhc") ||  in sdhci_esdhc_probe()
932 	    of_device_is_compatible(np, "fsl,p4080-esdhc") ||  in sdhci_esdhc_probe()
933 	    of_device_is_compatible(np, "fsl,p1020-esdhc") ||  in sdhci_esdhc_probe()
934 	    of_device_is_compatible(np, "fsl,t1040-esdhc"))  in sdhci_esdhc_probe()
937 	if (of_device_is_compatible(np, "fsl,ls1021a-esdhc"))  in sdhci_esdhc_probe()
940 	if (of_device_is_compatible(np, "fsl,p2020-esdhc")) {  in sdhci_esdhc_probe()
967 		.name = "sdhci-esdhc",
977 MODULE_DESCRIPTION("SDHCI OF driver for Freescale MPC eSDHC");