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/arch/ppc/platforms/prpmc750.h

https://bitbucket.org/evzijst/gittest
C Header | 95 lines | 48 code | 17 blank | 30 comment | 0 complexity | 72526e79dfa57fd09a2897ddbcd769df MD5 | raw file
 1/*
 2 * include/asm-ppc/platforms/prpmc750.h
 3 *
 4 * Definitions for Motorola PrPMC750 board support
 5 *
 6 * Author: Matt Porter <mporter@mvista.com>
 7 *
 8 * 2001-2004 (c) MontaVista, Software, Inc.  This file is licensed under
 9 * the terms of the GNU General Public License version 2.  This program
10 * is licensed "as is" without any warranty of any kind, whether express
11 * or implied.
12 */
13
14#ifdef __KERNEL__
15#ifndef __ASM_PRPMC750_H__
16#define __ASM_PRPMC750_H__
17
18/*
19 * Due to limiations imposed by legacy hardware (primaryily IDE controllers),
20 * the PrPMC750 carrier board operates using a PReP address map.
21 *
22 * From Processor (physical) -> PCI:
23 *   PCI Mem Space: 0xc0000000 - 0xfe000000 -> 0x00000000 - 0x3e000000 (768 MB)
24 *   PCI I/O Space: 0x80000000 - 0x90000000 -> 0x00000000 - 0x10000000 (256 MB)
25 *	Note: Must skip 0xfe000000-0xfe400000 for CONFIG_HIGHMEM/PKMAP area
26 *
27 * From PCI -> Processor (physical):
28 *   System Memory: 0x80000000 -> 0x00000000
29 */
30
31#define PRPMC750_ISA_IO_BASE		PREP_ISA_IO_BASE
32#define PRPMC750_ISA_MEM_BASE		PREP_ISA_MEM_BASE
33
34/* PCI Memory space mapping info */
35#define PRPMC750_PCI_MEM_SIZE		0x30000000U
36#define PRPMC750_PROC_PCI_MEM_START	PRPMC750_ISA_MEM_BASE
37#define PRPMC750_PROC_PCI_MEM_END	(PRPMC750_PROC_PCI_MEM_START +	\
38					 PRPMC750_PCI_MEM_SIZE - 1)
39#define PRPMC750_PCI_MEM_START		0x00000000U
40#define PRPMC750_PCI_MEM_END		(PRPMC750_PCI_MEM_START +	\
41					 PRPMC750_PCI_MEM_SIZE - 1)
42
43/* PCI I/O space mapping info */
44#define PRPMC750_PCI_IO_SIZE		0x10000000U
45#define PRPMC750_PROC_PCI_IO_START	PRPMC750_ISA_IO_BASE
46#define PRPMC750_PROC_PCI_IO_END	(PRPMC750_PROC_PCI_IO_START +	\
47					 PRPMC750_PCI_IO_SIZE - 1)
48#define PRPMC750_PCI_IO_START		0x00000000U
49#define PRPMC750_PCI_IO_END		(PRPMC750_PCI_IO_START + 	\
50					 PRPMC750_PCI_IO_SIZE - 1)
51
52/* System memory mapping info */
53#define PRPMC750_PCI_DRAM_OFFSET	PREP_PCI_DRAM_OFFSET
54#define PRPMC750_PCI_PHY_MEM_OFFSET	(PRPMC750_ISA_MEM_BASE-PRPMC750_PCI_MEM_START)
55
56/* Register address definitions */
57#define PRPMC750_HAWK_SMC_BASE		0xfef80000U
58#define PRPMC750_HAWK_PPC_REG_BASE	0xfeff0000U
59
60#define PRPMC750_BASE_BAUD		1843200
61#define PRPMC750_SERIAL_0		0xfef88000
62#define PRPMC750_SERIAL_0_DLL		(PRPMC750_SERIAL_0 + (UART_DLL << 4))
63#define PRPMC750_SERIAL_0_DLM		(PRPMC750_SERIAL_0 + (UART_DLM << 4))
64#define PRPMC750_SERIAL_0_LCR		(PRPMC750_SERIAL_0 + (UART_LCR << 4))
65
66#define PRPMC750_STATUS_REG		0xfef88080
67#define PRPMC750_BAUDOUT_MASK		0x02
68#define PRPMC750_MONARCH_MASK		0x01
69
70#define PRPMC750_MODRST_REG		0xfef880a0
71#define PRPMC750_MODRST_MASK		0x01
72
73#define PRPMC750_PIRQ_REG		0xfef880b0
74#define PRPMC750_SEL1_MASK		0x02
75#define PRPMC750_SEL0_MASK		0x01
76
77#define PRPMC750_TBEN_REG		0xfef880c0
78#define PRPMC750_TBEN_MASK		0x01
79
80/* UART Defines. */
81#define RS_TABLE_SIZE  4
82
83/* Rate for the 1.8432 Mhz clock for the onboard serial chip */
84#define BASE_BAUD  (PRPMC750_BASE_BAUD / 16)
85
86#define STD_COM_FLAGS ASYNC_BOOT_AUTOCONF
87
88#define SERIAL_PORT_DFNS \
89        { 0, BASE_BAUD, PRPMC750_SERIAL_0, 1, STD_COM_FLAGS, \
90		iomem_base: (unsigned char *)PRPMC750_SERIAL_0, \
91		iomem_reg_shift: 4, \
92		io_type: SERIAL_IO_MEM } /* ttyS0 */
93
94#endif				/* __ASM_PRPMC750_H__ */
95#endif				/* __KERNEL__ */