Commit | Line | Data |
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1da177e4 | 1 | /* |
a09e64fb | 2 | * arch/arm/mach-ixp4xx/include/mach/platform.h |
1da177e4 LT |
3 | * |
4 | * Constants and functions that are useful to IXP4xx platform-specific code | |
5 | * and device drivers. | |
6 | * | |
7 | * Copyright (C) 2004 MontaVista Software, Inc. | |
8 | */ | |
9 | ||
10 | #ifndef __ASM_ARCH_HARDWARE_H__ | |
a09e64fb | 11 | #error "Do not include this directly, instead #include <mach/hardware.h>" |
1da177e4 LT |
12 | #endif |
13 | ||
14 | #ifndef __ASSEMBLY__ | |
15 | ||
16 | #include <asm/types.h> | |
17 | ||
18 | #ifndef __ARMEB__ | |
19 | #define REG_OFFSET 0 | |
20 | #else | |
21 | #define REG_OFFSET 3 | |
22 | #endif | |
23 | ||
24 | /* | |
25 | * Expansion bus memory regions | |
26 | */ | |
27 | #define IXP4XX_EXP_BUS_BASE_PHYS (0x50000000) | |
28 | ||
54e269ea DS |
29 | /* |
30 | * The expansion bus on the IXP4xx can be configured for either 16 or | |
31 | * 32MB windows and the CS offset for each region changes based on the | |
32 | * current configuration. This means that we cannot simply hardcode | |
33 | * each offset. ixp4xx_sys_init() looks at the expansion bus configuration | |
34 | * as setup by the bootloader to determine our window size. | |
35 | */ | |
36 | extern unsigned long ixp4xx_exp_bus_size; | |
1da177e4 | 37 | |
54e269ea DS |
38 | #define IXP4XX_EXP_BUS_BASE(region)\ |
39 | (IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size)) | |
1da177e4 | 40 | |
03bd14c4 AZ |
41 | #define IXP4XX_EXP_BUS_END(region)\ |
42 | (IXP4XX_EXP_BUS_BASE(region) + ixp4xx_exp_bus_size - 1) | |
43 | ||
44 | /* Those macros can be used to adjust timing and configure | |
45 | * other features for each region. | |
46 | */ | |
47 | ||
48 | #define IXP4XX_EXP_BUS_RECOVERY_T(x) (((x) & 0x0f) << 16) | |
49 | #define IXP4XX_EXP_BUS_HOLD_T(x) (((x) & 0x03) << 20) | |
50 | #define IXP4XX_EXP_BUS_STROBE_T(x) (((x) & 0x0f) << 22) | |
51 | #define IXP4XX_EXP_BUS_SETUP_T(x) (((x) & 0x03) << 26) | |
52 | #define IXP4XX_EXP_BUS_ADDR_T(x) (((x) & 0x03) << 28) | |
53 | #define IXP4XX_EXP_BUS_SIZE(x) (((x) & 0x0f) << 10) | |
54 | #define IXP4XX_EXP_BUS_CYCLES(x) (((x) & 0x03) << 14) | |
55 | ||
56 | #define IXP4XX_EXP_BUS_CS_EN (1L << 31) | |
57 | #define IXP4XX_EXP_BUS_BYTE_RD16 (1L << 6) | |
58 | #define IXP4XX_EXP_BUS_HRDY_POL (1L << 5) | |
59 | #define IXP4XX_EXP_BUS_MUX_EN (1L << 4) | |
60 | #define IXP4XX_EXP_BUS_SPLT_EN (1L << 3) | |
61 | #define IXP4XX_EXP_BUS_WR_EN (1L << 1) | |
62 | #define IXP4XX_EXP_BUS_BYTE_EN (1L << 0) | |
63 | ||
64 | #define IXP4XX_EXP_BUS_CYCLES_INTEL 0x00 | |
65 | #define IXP4XX_EXP_BUS_CYCLES_MOTOROLA 0x01 | |
66 | #define IXP4XX_EXP_BUS_CYCLES_HPI 0x02 | |
67 | ||
1da177e4 LT |
68 | #define IXP4XX_FLASH_WRITABLE (0x2) |
69 | #define IXP4XX_FLASH_DEFAULT (0xbcd23c40) | |
70 | #define IXP4XX_FLASH_WRITE (0xbcd23c42) | |
71 | ||
72 | /* | |
73 | * Clock Speed Definitions. | |
74 | */ | |
75 | #define IXP4XX_PERIPHERAL_BUS_CLOCK (66) /* 66Mhzi APB BUS */ | |
76 | #define IXP4XX_UART_XTAL 14745600 | |
77 | ||
0df0d0a0 AZ |
78 | /* |
79 | * This structure provide a means for the board setup code | |
80 | * to give information to th pata_ixp4xx driver. It is | |
81 | * passed as platform_data. | |
82 | */ | |
83 | struct ixp4xx_pata_data { | |
84 | volatile u32 *cs0_cfg; | |
85 | volatile u32 *cs1_cfg; | |
86 | unsigned long cs0_bits; | |
87 | unsigned long cs1_bits; | |
88 | void __iomem *cs0; | |
89 | void __iomem *cs1; | |
90 | }; | |
1da177e4 | 91 | |
80bbdd27 KH |
92 | #define IXP4XX_ETH_NPEA 0x00 |
93 | #define IXP4XX_ETH_NPEB 0x10 | |
94 | #define IXP4XX_ETH_NPEC 0x20 | |
95 | ||
96 | /* Information about built-in Ethernet MAC interfaces */ | |
97 | struct eth_plat_info { | |
98 | u8 phy; /* MII PHY ID, 0 - 31 */ | |
99 | u8 rxq; /* configurable, currently 0 - 31 only */ | |
100 | u8 txreadyq; | |
101 | u8 hwaddr[6]; | |
102 | }; | |
103 | ||
104 | /* Information about built-in HSS (synchronous serial) interfaces */ | |
105 | struct hss_plat_info { | |
106 | int (*set_clock)(int port, unsigned int clock_type); | |
107 | int (*open)(int port, void *pdev, | |
108 | void (*set_carrier_cb)(void *pdev, int carrier)); | |
109 | void (*close)(int port, void *pdev); | |
110 | u8 txreadyq; | |
111 | }; | |
112 | ||
84904d0e KH |
113 | /* |
114 | * Frequency of clock used for primary clocksource | |
115 | */ | |
116 | extern unsigned long ixp4xx_timer_freq; | |
117 | ||
1da177e4 LT |
118 | /* |
119 | * Functions used by platform-level setup code | |
120 | */ | |
121 | extern void ixp4xx_map_io(void); | |
f449588c | 122 | extern void ixp4xx_init_early(void); |
1da177e4 LT |
123 | extern void ixp4xx_init_irq(void); |
124 | extern void ixp4xx_sys_init(void); | |
435c5da0 | 125 | extern void ixp4xx_timer_init(void); |
d1b860fb | 126 | extern void ixp4xx_restart(char, const char *); |
1da177e4 LT |
127 | extern void ixp4xx_pci_preinit(void); |
128 | struct pci_sys_data; | |
129 | extern int ixp4xx_setup(int nr, struct pci_sys_data *sys); | |
c23bfc38 | 130 | extern struct pci_ops ixp4xx_ops; |
1da177e4 LT |
131 | |
132 | /* | |
133 | * GPIO-functions | |
134 | */ | |
135 | /* | |
136 | * The following converted to the real HW bits the gpio_line_config | |
137 | */ | |
138 | /* GPIO pin types */ | |
139 | #define IXP4XX_GPIO_OUT 0x1 | |
140 | #define IXP4XX_GPIO_IN 0x2 | |
141 | ||
1da177e4 LT |
142 | /* GPIO signal types */ |
143 | #define IXP4XX_GPIO_LOW 0 | |
144 | #define IXP4XX_GPIO_HIGH 1 | |
145 | ||
146 | /* GPIO Clocks */ | |
147 | #define IXP4XX_GPIO_CLK_0 14 | |
148 | #define IXP4XX_GPIO_CLK_1 15 | |
149 | ||
bdf82b59 DS |
150 | static inline void gpio_line_config(u8 line, u32 direction) |
151 | { | |
ce12467d | 152 | if (direction == IXP4XX_GPIO_IN) |
bdf82b59 DS |
153 | *IXP4XX_GPIO_GPOER |= (1 << line); |
154 | else | |
155 | *IXP4XX_GPIO_GPOER &= ~(1 << line); | |
156 | } | |
1da177e4 LT |
157 | |
158 | static inline void gpio_line_get(u8 line, int *value) | |
159 | { | |
160 | *value = (*IXP4XX_GPIO_GPINR >> line) & 0x1; | |
161 | } | |
162 | ||
163 | static inline void gpio_line_set(u8 line, int value) | |
164 | { | |
165 | if (value == IXP4XX_GPIO_HIGH) | |
166 | *IXP4XX_GPIO_GPOUTR |= (1 << line); | |
167 | else if (value == IXP4XX_GPIO_LOW) | |
168 | *IXP4XX_GPIO_GPOUTR &= ~(1 << line); | |
169 | } | |
170 | ||
1da177e4 LT |
171 | #endif // __ASSEMBLY__ |
172 |