tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Definitions for Marvell/Galileo EV-64260-BP Evaluation Board.
3 *
4 * Author: Mark A. Greer <mgreer@mvista.com>
5 *
6 * 2001-2002 (c) MontaVista, Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11
12/*
13 * The MV64x60 has 2 PCI buses each with 1 window from the CPU bus to
14 * PCI I/O space and 4 windows from the CPU bus to PCI MEM space.
15 * We'll only use one PCI MEM window on each PCI bus.
16 *
17 * This is the CPU physical memory map (windows must be at least 1MB and start
18 * on a boundary that is a multiple of the window size):
19 *
20 * 0xfc000000-0xffffffff - External FLASH on device module
21 * 0xfbf00000-0xfbffffff - Embedded (on board) FLASH
22 * 0xfbe00000-0xfbefffff - GT64260 Registers (preferably)
23 * but really a config option
24 * 0xfbd00000-0xfbdfffff - External SRAM on device module
25 * 0xfbc00000-0xfbcfffff - TODC chip on device module
26 * 0xfbb00000-0xfbbfffff - External UART on device module
27 * 0xa2000000-0xfbafffff - <hole>
28 * 0xa1000000-0xa1ffffff - PCI 1 I/O (defined in gt64260.h)
29 * 0xa0000000-0xa0ffffff - PCI 0 I/O (defined in gt64260.h)
30 * 0x90000000-0x9fffffff - PCI 1 MEM (defined in gt64260.h)
31 * 0x80000000-0x8fffffff - PCI 0 MEM (defined in gt64260.h)
32 */
33
34#ifndef __PPC_PLATFORMS_EV64260_H
35#define __PPC_PLATFORMS_EV64260_H
36
37/* PCI mappings */
38#define EV64260_PCI0_IO_CPU_BASE 0xa0000000
39#define EV64260_PCI0_IO_PCI_BASE 0x00000000
40#define EV64260_PCI0_IO_SIZE 0x01000000
41
42#define EV64260_PCI0_MEM_CPU_BASE 0x80000000
43#define EV64260_PCI0_MEM_PCI_BASE 0x80000000
44#define EV64260_PCI0_MEM_SIZE 0x10000000
45
46#define EV64260_PCI1_IO_CPU_BASE (EV64260_PCI0_IO_CPU_BASE + \
47 EV64260_PCI0_IO_SIZE)
48#define EV64260_PCI1_IO_PCI_BASE (EV64260_PCI0_IO_PCI_BASE + \
49 EV64260_PCI0_IO_SIZE)
50#define EV64260_PCI1_IO_SIZE 0x01000000
51
52#define EV64260_PCI1_MEM_CPU_BASE (EV64260_PCI0_MEM_CPU_BASE + \
53 EV64260_PCI0_MEM_SIZE)
54#define EV64260_PCI1_MEM_PCI_BASE (EV64260_PCI0_MEM_PCI_BASE + \
55 EV64260_PCI0_MEM_SIZE)
56#define EV64260_PCI1_MEM_SIZE 0x10000000
57
58/* CPU Physical Memory Map setup (other than PCI) */
59#define EV64260_EXT_FLASH_BASE 0xfc000000
60#define EV64260_EMB_FLASH_BASE 0xfbf00000
61#define EV64260_EXT_SRAM_BASE 0xfbd00000
62#define EV64260_TODC_BASE 0xfbc00000
63#define EV64260_UART_BASE 0xfbb00000
64
65#define EV64260_EXT_FLASH_SIZE_ACTUAL 0x04000000 /* <= 64MB Extern FLASH */
66#define EV64260_EMB_FLASH_SIZE_ACTUAL 0x00080000 /* 512KB of Embed FLASH */
67#define EV64260_EXT_SRAM_SIZE_ACTUAL 0x00100000 /* 1MB SDRAM */
68#define EV64260_TODC_SIZE_ACTUAL 0x00000020 /* 32 bytes for TODC */
69#define EV64260_UART_SIZE_ACTUAL 0x00000040 /* 64 bytes for DUART */
70
71#define EV64260_EXT_FLASH_SIZE max(GT64260_WINDOW_SIZE_MIN, \
72 EV64260_EXT_FLASH_SIZE_ACTUAL)
73#define EV64260_EMB_FLASH_SIZE max(GT64260_WINDOW_SIZE_MIN, \
74 EV64260_EMB_FLASH_SIZE_ACTUAL)
75#define EV64260_EXT_SRAM_SIZE max(GT64260_WINDOW_SIZE_MIN, \
76 EV64260_EXT_SRAM_SIZE_ACTUAL)
77#define EV64260_TODC_SIZE max(GT64260_WINDOW_SIZE_MIN, \
78 EV64260_TODC_SIZE_ACTUAL)
79/* Assembler in bootwrapper blows up if 'max' is used */
80#define EV64260_UART_SIZE GT64260_WINDOW_SIZE_MIN
81#define EV64260_UART_END ((EV64260_UART_BASE + \
82 EV64260_UART_SIZE - 1) & 0xfff00000)
83
84/* Board-specific IRQ info */
85#define EV64260_UART_0_IRQ 85
86#define EV64260_UART_1_IRQ 86
87#define EV64260_PCI_0_IRQ 91
88#define EV64260_PCI_1_IRQ 93
89
90/* Serial port setup */
91#define EV64260_DEFAULT_BAUD 115200
92
93#if defined(CONFIG_SERIAL_MPSC_CONSOLE)
94#define SERIAL_PORT_DFNS
95
96#define EV64260_MPSC_CLK_SRC 8 /* TCLK */
97#define EV64260_MPSC_CLK_FREQ 100000000 /* 100MHz clk */
98#else
99#define EV64260_SERIAL_0 (EV64260_UART_BASE + 0x20)
100#define EV64260_SERIAL_1 EV64260_UART_BASE
101
102#define BASE_BAUD (EV64260_DEFAULT_BAUD * 2)
103
104#ifdef CONFIG_SERIAL_MANY_PORTS
105#define RS_TABLE_SIZE 64
106#else
107#define RS_TABLE_SIZE 2
108#endif
109
110#ifdef CONFIG_SERIAL_DETECT_IRQ
111#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_SKIP_TEST|ASYNC_AUTO_IRQ)
112#else
113#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF|ASYNC_SKIP_TEST)
114#endif
115
116/* Required for bootloader's ns16550.c code */
117#define STD_SERIAL_PORT_DFNS \
118 { 0, BASE_BAUD, EV64260_SERIAL_0, EV64260_UART_0_IRQ, STD_COM_FLAGS, \
119 iomem_base: (u8 *)EV64260_SERIAL_0, /* ttyS0 */ \
120 iomem_reg_shift: 2, \
121 io_type: SERIAL_IO_MEM },
122
123#define SERIAL_PORT_DFNS \
124 STD_SERIAL_PORT_DFNS
125#endif
126#endif /* __PPC_PLATFORMS_EV64260_H */