xref: /openbmc/linux/drivers/mmc/host/dw_mmc-exynos.h (revision 92a2c6b2)
1 /*
2  * Exynos Specific Extensions for Synopsys DW Multimedia Card Interface driver
3  *
4  * Copyright (C) 2012-2014 Samsung Electronics Co., Ltd.
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 as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  */
11 
12 #ifndef _DW_MMC_EXYNOS_H_
13 #define _DW_MMC_EXYNOS_H_
14 
15 /* Extended Register's Offset */
16 #define SDMMC_CLKSEL			0x09C
17 #define SDMMC_CLKSEL64			0x0A8
18 
19 /* CLKSEL register defines */
20 #define SDMMC_CLKSEL_CCLK_SAMPLE(x)	(((x) & 7) << 0)
21 #define SDMMC_CLKSEL_CCLK_DRIVE(x)	(((x) & 7) << 16)
22 #define SDMMC_CLKSEL_CCLK_DIVIDER(x)	(((x) & 7) << 24)
23 #define SDMMC_CLKSEL_GET_DRV_WD3(x)	(((x) >> 16) & 0x7)
24 #define SDMMC_CLKSEL_TIMING(x, y, z)	(SDMMC_CLKSEL_CCLK_SAMPLE(x) |	\
25 					 SDMMC_CLKSEL_CCLK_DRIVE(y) |	\
26 					 SDMMC_CLKSEL_CCLK_DIVIDER(z))
27 #define SDMMC_CLKSEL_WAKEUP_INT		BIT(11)
28 
29 /* Protector Register */
30 #define SDMMC_EMMCP_BASE	0x1000
31 #define SDMMC_MPSECURITY	(SDMMC_EMMCP_BASE + 0x0010)
32 #define SDMMC_MPSBEGIN0		(SDMMC_EMMCP_BASE + 0x0200)
33 #define SDMMC_MPSEND0		(SDMMC_EMMCP_BASE + 0x0204)
34 #define SDMMC_MPSCTRL0		(SDMMC_EMMCP_BASE + 0x020C)
35 
36 /* SMU control defines */
37 #define SDMMC_MPSCTRL_SECURE_READ_BIT		BIT(7)
38 #define SDMMC_MPSCTRL_SECURE_WRITE_BIT		BIT(6)
39 #define SDMMC_MPSCTRL_NON_SECURE_READ_BIT	BIT(5)
40 #define SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT	BIT(4)
41 #define SDMMC_MPSCTRL_USE_FUSE_KEY		BIT(3)
42 #define SDMMC_MPSCTRL_ECB_MODE			BIT(2)
43 #define SDMMC_MPSCTRL_ENCRYPTION		BIT(1)
44 #define SDMMC_MPSCTRL_VALID			BIT(0)
45 
46 /* Maximum number of Ending sector */
47 #define SDMMC_ENDING_SEC_NR_MAX	0xFFFFFFFF
48 
49 /* Fixed clock divider */
50 #define EXYNOS4210_FIXED_CIU_CLK_DIV	2
51 #define EXYNOS4412_FIXED_CIU_CLK_DIV	4
52 
53 /* Minimal required clock frequency for cclkin, unit: HZ */
54 #define EXYNOS_CCLKIN_MIN	50000000
55 
56 #endif /* _DW_MMC_EXYNOS_H_ */
57