1 /* linux/arch/arm/plat-s3c/include/plat/sdhci.h
3 * Copyright 2008 Openmoko, Inc.
4 * Copyright 2008 Simtec Electronics
5 * http://armlinux.simtec.co.uk/
6 * Ben Dooks <ben@simtec.co.uk>
8 * S3C Platform - SDHCI (HSMMC) platform data definitions
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #ifndef __PLAT_S3C_SDHCI_H
16 #define __PLAT_S3C_SDHCI_H __FILE__
18 struct platform_device;
24 * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
25 * @max_width: The maximum number of data bits supported.
26 * @host_caps: Standard MMC host capabilities bit field.
27 * @cfg_gpio: Configure the GPIO for a specific card bit-width
28 * @cfg_card: Configure the interface for a specific card and speed. This
29 * is necessary the controllers and/or GPIO blocks require the
30 * changing of driver-strength and other controls dependant on
31 * the card and speed of operation.
33 * Initialisation data specific to either the machine or the platform
34 * for the device driver to use or call-back when configuring gpio or
35 * card speed information.
37 struct s3c_sdhci_platdata {
38 unsigned int max_width;
39 unsigned int host_caps;
41 char **clocks; /* set of clock sources */
43 void (*cfg_gpio)(struct platform_device *dev, int width);
44 void (*cfg_card)(struct platform_device *dev,
45 void __iomem *regbase,
47 struct mmc_card *card);
51 * s3c_sdhci0_set_platdata - Set platform data for S3C SDHCI device.
52 * @pd: Platform data to register to device.
54 * Register the given platform data for use withe S3C SDHCI device.
55 * The call will copy the platform data, so the board definitions can
56 * make the structure itself __initdata.
58 extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
59 extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
60 extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
62 /* Default platform data, exported so that per-cpu initialisation can
63 * set the correct one when there are more than one cpu type selected.
66 extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
67 extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
68 extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
70 /* Helper function availablity */
72 extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
73 extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
74 extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
76 /* S3C6400 SDHCI setup */
78 #ifdef CONFIG_S3C6400_SETUP_SDHCI
79 extern char *s3c6400_hsmmc_clksrcs[4];
81 #ifdef CONFIG_S3C_DEV_HSMMC
82 extern void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev,
85 struct mmc_card *card);
87 static inline void s3c6400_default_sdhci0(void)
89 s3c_hsmmc0_def_platdata.clocks = s3c6400_hsmmc_clksrcs;
90 s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
91 s3c_hsmmc0_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
95 static inline void s3c6400_default_sdhci0(void) { }
96 #endif /* CONFIG_S3C_DEV_HSMMC */
98 #ifdef CONFIG_S3C_DEV_HSMMC1
99 static inline void s3c6400_default_sdhci1(void)
101 s3c_hsmmc1_def_platdata.clocks = s3c6400_hsmmc_clksrcs;
102 s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
103 s3c_hsmmc1_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
106 static inline void s3c6400_default_sdhci1(void) { }
107 #endif /* CONFIG_S3C_DEV_HSMMC1 */
109 #ifdef CONFIG_S3C_DEV_HSMMC2
110 static inline void s3c6400_default_sdhci2(void)
112 s3c_hsmmc2_def_platdata.clocks = s3c6400_hsmmc_clksrcs;
113 s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
114 s3c_hsmmc2_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
117 static inline void s3c6400_default_sdhci2(void) { }
118 #endif /* CONFIG_S3C_DEV_HSMMC2 */
121 static inline void s3c6400_default_sdhci0(void) { }
122 static inline void s3c6400_default_sdhci1(void) { }
123 #endif /* CONFIG_S3C6400_SETUP_SDHCI */
125 /* S3C6410 SDHCI setup */
127 #ifdef CONFIG_S3C6410_SETUP_SDHCI
128 extern char *s3c6410_hsmmc_clksrcs[4];
130 extern void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev,
133 struct mmc_card *card);
135 #ifdef CONFIG_S3C_DEV_HSMMC
136 static inline void s3c6410_default_sdhci0(void)
138 s3c_hsmmc0_def_platdata.clocks = s3c6410_hsmmc_clksrcs;
139 s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
140 s3c_hsmmc0_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
143 static inline void s3c6410_default_sdhci0(void) { }
144 #endif /* CONFIG_S3C_DEV_HSMMC */
146 #ifdef CONFIG_S3C_DEV_HSMMC1
147 static inline void s3c6410_default_sdhci1(void)
149 s3c_hsmmc1_def_platdata.clocks = s3c6410_hsmmc_clksrcs;
150 s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
151 s3c_hsmmc1_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
154 static inline void s3c6410_default_sdhci1(void) { }
155 #endif /* CONFIG_S3C_DEV_HSMMC1 */
157 #ifdef CONFIG_S3C_DEV_HSMMC2
158 static inline void s3c6410_default_sdhci2(void)
160 s3c_hsmmc2_def_platdata.clocks = s3c6410_hsmmc_clksrcs;
161 s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
162 s3c_hsmmc2_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
165 static inline void s3c6410_default_sdhci2(void) { }
166 #endif /* CONFIG_S3C_DEV_HSMMC2 */
169 static inline void s3c6410_default_sdhci0(void) { }
170 static inline void s3c6410_default_sdhci1(void) { }
171 #endif /* CONFIG_S3C6410_SETUP_SDHCI */
173 #endif /* __PLAT_S3C_SDHCI_H */