xref: /linux/arch/arm/mach-pxa/smemc.h (revision 24bce201d79807b668bf9d9e0aca801c5c0d5f78)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Static memory controller register definitions for PXA CPUs
4  *
5  * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
6  */
7 
8 #ifndef __SMEMC_REGS_H
9 #define __SMEMC_REGS_H
10 
11 #define PXA2XX_SMEMC_BASE	0x48000000
12 #define PXA3XX_SMEMC_BASE	0x4a000000
13 #define SMEMC_VIRT		IOMEM(0xf6000000)
14 
15 #define MDCNFG		(SMEMC_VIRT + 0x00)  /* SDRAM Configuration Register 0 */
16 #define MDREFR		(SMEMC_VIRT + 0x04)  /* SDRAM Refresh Control Register */
17 #define MSC0		(SMEMC_VIRT + 0x08)  /* Static Memory Control Register 0 */
18 #define MSC1		(SMEMC_VIRT + 0x0C)  /* Static Memory Control Register 1 */
19 #define MSC2		(SMEMC_VIRT + 0x10)  /* Static Memory Control Register 2 */
20 #define MECR		(SMEMC_VIRT + 0x14)  /* Expansion Memory (PCMCIA/Compact Flash) Bus Configuration */
21 #define SXLCR		(SMEMC_VIRT + 0x18)  /* LCR value to be written to SDRAM-Timing Synchronous Flash */
22 #define SXCNFG		(SMEMC_VIRT + 0x1C)  /* Synchronous Static Memory Control Register */
23 #define SXMRS		(SMEMC_VIRT + 0x24)  /* MRS value to be written to Synchronous Flash or SMROM */
24 #define MCMEM0		(SMEMC_VIRT + 0x28)  /* Card interface Common Memory Space Socket 0 Timing */
25 #define MCMEM1		(SMEMC_VIRT + 0x2C)  /* Card interface Common Memory Space Socket 1 Timing */
26 #define MCATT0		(SMEMC_VIRT + 0x30)  /* Card interface Attribute Space Socket 0 Timing Configuration */
27 #define MCATT1		(SMEMC_VIRT + 0x34)  /* Card interface Attribute Space Socket 1 Timing Configuration */
28 #define MCIO0		(SMEMC_VIRT + 0x38)  /* Card interface I/O Space Socket 0 Timing Configuration */
29 #define MCIO1		(SMEMC_VIRT + 0x3C)  /* Card interface I/O Space Socket 1 Timing Configuration */
30 #define MDMRS		(SMEMC_VIRT + 0x40)  /* MRS value to be written to SDRAM */
31 #define BOOT_DEF	(SMEMC_VIRT + 0x44)  /* Read-Only Boot-Time Register. Contains BOOT_SEL and PKG_SEL */
32 #define MEMCLKCFG	(SMEMC_VIRT + 0x68)  /* Clock Configuration */
33 #define CSADRCFG0	(SMEMC_VIRT + 0x80)  /* Address Configuration Register for CS0 */
34 #define CSADRCFG1	(SMEMC_VIRT + 0x84)  /* Address Configuration Register for CS1 */
35 #define CSADRCFG2	(SMEMC_VIRT + 0x88)  /* Address Configuration Register for CS2 */
36 #define CSADRCFG3	(SMEMC_VIRT + 0x8C)  /* Address Configuration Register for CS3 */
37 #define CSMSADRCFG	(SMEMC_VIRT + 0xA0)  /* Chip Select Configuration Register */
38 
39 /*
40  * More handy macros for PCMCIA
41  *
42  * Arg is socket number
43  */
44 #define MCMEM(s)	(SMEMC_VIRT + 0x28 + ((s)<<2))  /* Card interface Common Memory Space Socket s Timing */
45 #define MCATT(s)	(SMEMC_VIRT + 0x30 + ((s)<<2))  /* Card interface Attribute Space Socket s Timing Configuration */
46 #define MCIO(s)		(SMEMC_VIRT + 0x38 + ((s)<<2))  /* Card interface I/O Space Socket s Timing Configuration */
47 
48 /* MECR register defines */
49 #define MECR_NOS	(1 << 0)	/* Number Of Sockets: 0 -> 1 sock, 1 -> 2 sock */
50 #define MECR_CIT	(1 << 1)	/* Card Is There: 0 -> no card, 1 -> card inserted */
51 
52 #define MDCNFG_DE0	(1 << 0)	/* SDRAM Bank 0 Enable */
53 #define MDCNFG_DE1	(1 << 1)	/* SDRAM Bank 1 Enable */
54 #define MDCNFG_DE2	(1 << 16)	/* SDRAM Bank 2 Enable */
55 #define MDCNFG_DE3	(1 << 17)	/* SDRAM Bank 3 Enable */
56 
57 #define MDREFR_K0DB4	(1 << 29)	/* SDCLK0 Divide by 4 Control/Status */
58 #define MDREFR_K2FREE	(1 << 25)	/* SDRAM Free-Running Control */
59 #define MDREFR_K1FREE	(1 << 24)	/* SDRAM Free-Running Control */
60 #define MDREFR_K0FREE	(1 << 23)	/* SDRAM Free-Running Control */
61 #define MDREFR_SLFRSH	(1 << 22)	/* SDRAM Self-Refresh Control/Status */
62 #define MDREFR_APD	(1 << 20)	/* SDRAM/SSRAM Auto-Power-Down Enable */
63 #define MDREFR_K2DB2	(1 << 19)	/* SDCLK2 Divide by 2 Control/Status */
64 #define MDREFR_K2RUN	(1 << 18)	/* SDCLK2 Run Control/Status */
65 #define MDREFR_K1DB2	(1 << 17)	/* SDCLK1 Divide by 2 Control/Status */
66 #define MDREFR_K1RUN	(1 << 16)	/* SDCLK1 Run Control/Status */
67 #define MDREFR_E1PIN	(1 << 15)	/* SDCKE1 Level Control/Status */
68 #define MDREFR_K0DB2	(1 << 14)	/* SDCLK0 Divide by 2 Control/Status */
69 #define MDREFR_K0RUN	(1 << 13)	/* SDCLK0 Run Control/Status */
70 #define MDREFR_E0PIN	(1 << 12)	/* SDCKE0 Level Control/Status */
71 
72 #endif
73