xref: /OK3568_Linux_fs/kernel/arch/arm/mach-davinci/include/mach/common.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Header for code common to all DaVinci machines.
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5*4882a593Smuzhiyun  *
6*4882a593Smuzhiyun  * 2007 (c) MontaVista Software, Inc. This file is licensed under
7*4882a593Smuzhiyun  * the terms of the GNU General Public License version 2. This program
8*4882a593Smuzhiyun  * is licensed "as is" without any warranty of any kind, whether express
9*4882a593Smuzhiyun  * or implied.
10*4882a593Smuzhiyun  */
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun #ifndef __ARCH_ARM_MACH_DAVINCI_COMMON_H
13*4882a593Smuzhiyun #define __ARCH_ARM_MACH_DAVINCI_COMMON_H
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun #include <linux/clk.h>
16*4882a593Smuzhiyun #include <linux/compiler.h>
17*4882a593Smuzhiyun #include <linux/types.h>
18*4882a593Smuzhiyun #include <linux/reboot.h>
19*4882a593Smuzhiyun 
20*4882a593Smuzhiyun #include <asm/irq.h>
21*4882a593Smuzhiyun 
22*4882a593Smuzhiyun #define DAVINCI_INTC_START		NR_IRQS
23*4882a593Smuzhiyun #define DAVINCI_INTC_IRQ(_irqnum)	(DAVINCI_INTC_START + (_irqnum))
24*4882a593Smuzhiyun 
25*4882a593Smuzhiyun struct davinci_gpio_controller;
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun /*
28*4882a593Smuzhiyun  * SoC info passed into common davinci modules.
29*4882a593Smuzhiyun  *
30*4882a593Smuzhiyun  * Base addresses in this structure should be physical and not virtual.
31*4882a593Smuzhiyun  * Modules that take such base addresses, should internally ioremap() them to
32*4882a593Smuzhiyun  * use.
33*4882a593Smuzhiyun  */
34*4882a593Smuzhiyun struct davinci_soc_info {
35*4882a593Smuzhiyun 	struct map_desc			*io_desc;
36*4882a593Smuzhiyun 	unsigned long			io_desc_num;
37*4882a593Smuzhiyun 	u32				cpu_id;
38*4882a593Smuzhiyun 	u32				jtag_id;
39*4882a593Smuzhiyun 	u32				jtag_id_reg;
40*4882a593Smuzhiyun 	struct davinci_id		*ids;
41*4882a593Smuzhiyun 	unsigned long			ids_num;
42*4882a593Smuzhiyun 	u32				pinmux_base;
43*4882a593Smuzhiyun 	const struct mux_config		*pinmux_pins;
44*4882a593Smuzhiyun 	unsigned long			pinmux_pins_num;
45*4882a593Smuzhiyun 	int				gpio_type;
46*4882a593Smuzhiyun 	u32				gpio_base;
47*4882a593Smuzhiyun 	unsigned			gpio_num;
48*4882a593Smuzhiyun 	unsigned			gpio_irq;
49*4882a593Smuzhiyun 	unsigned			gpio_unbanked;
50*4882a593Smuzhiyun 	struct davinci_gpio_controller	*gpio_ctlrs;
51*4882a593Smuzhiyun 	int				gpio_ctlrs_num;
52*4882a593Smuzhiyun 	struct emac_platform_data	*emac_pdata;
53*4882a593Smuzhiyun 	dma_addr_t			sram_dma;
54*4882a593Smuzhiyun 	unsigned			sram_len;
55*4882a593Smuzhiyun };
56*4882a593Smuzhiyun 
57*4882a593Smuzhiyun extern struct davinci_soc_info davinci_soc_info;
58*4882a593Smuzhiyun 
59*4882a593Smuzhiyun extern void davinci_common_init(const struct davinci_soc_info *soc_info);
60*4882a593Smuzhiyun extern void davinci_init_ide(void);
61*4882a593Smuzhiyun void davinci_init_late(void);
62*4882a593Smuzhiyun 
63*4882a593Smuzhiyun #ifdef CONFIG_CPU_FREQ
64*4882a593Smuzhiyun int davinci_cpufreq_init(void);
65*4882a593Smuzhiyun #else
davinci_cpufreq_init(void)66*4882a593Smuzhiyun static inline int davinci_cpufreq_init(void) { return 0; }
67*4882a593Smuzhiyun #endif
68*4882a593Smuzhiyun 
69*4882a593Smuzhiyun #ifdef CONFIG_SUSPEND
70*4882a593Smuzhiyun int davinci_pm_init(void);
71*4882a593Smuzhiyun #else
davinci_pm_init(void)72*4882a593Smuzhiyun static inline int davinci_pm_init(void) { return 0; }
73*4882a593Smuzhiyun #endif
74*4882a593Smuzhiyun 
75*4882a593Smuzhiyun void __init pdata_quirks_init(void);
76*4882a593Smuzhiyun 
77*4882a593Smuzhiyun #define SRAM_SIZE	SZ_128K
78*4882a593Smuzhiyun 
79*4882a593Smuzhiyun #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */
80