1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/arch/arm/mach-ep93xx/micro9.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH
6*4882a593Smuzhiyun * Manfred Gruber <m.gruber@tirol.com>
7*4882a593Smuzhiyun * Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH
8*4882a593Smuzhiyun * Hubert Feurstein <hubert.feurstein@contec.at>
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/kernel.h>
12*4882a593Smuzhiyun #include <linux/init.h>
13*4882a593Smuzhiyun #include <linux/platform_device.h>
14*4882a593Smuzhiyun #include <linux/io.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include "hardware.h"
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #include <asm/mach-types.h>
19*4882a593Smuzhiyun #include <asm/mach/arch.h>
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun #include "soc.h"
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun /*************************************************************************
24*4882a593Smuzhiyun * Micro9 NOR Flash
25*4882a593Smuzhiyun *
26*4882a593Smuzhiyun * Micro9-High has up to 64MB of 32-bit flash on CS1
27*4882a593Smuzhiyun * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
28*4882a593Smuzhiyun * Micro9-Lite uses a separate MTD map driver for flash support
29*4882a593Smuzhiyun * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
30*4882a593Smuzhiyun *************************************************************************/
micro9_detect_bootwidth(void)31*4882a593Smuzhiyun static unsigned int __init micro9_detect_bootwidth(void)
32*4882a593Smuzhiyun {
33*4882a593Smuzhiyun u32 v;
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /* Detect the bus width of the external flash memory */
36*4882a593Smuzhiyun v = __raw_readl(EP93XX_SYSCON_SYSCFG);
37*4882a593Smuzhiyun if (v & EP93XX_SYSCON_SYSCFG_LCSN7)
38*4882a593Smuzhiyun return 4; /* 32-bit */
39*4882a593Smuzhiyun else
40*4882a593Smuzhiyun return 2; /* 16-bit */
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
micro9_register_flash(void)43*4882a593Smuzhiyun static void __init micro9_register_flash(void)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun unsigned int width;
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun if (machine_is_micro9())
48*4882a593Smuzhiyun width = 4;
49*4882a593Smuzhiyun else if (machine_is_micro9m() || machine_is_micro9s())
50*4882a593Smuzhiyun width = micro9_detect_bootwidth();
51*4882a593Smuzhiyun else
52*4882a593Smuzhiyun width = 0;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun if (width)
55*4882a593Smuzhiyun ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun /*************************************************************************
60*4882a593Smuzhiyun * Micro9 Ethernet
61*4882a593Smuzhiyun *************************************************************************/
62*4882a593Smuzhiyun static struct ep93xx_eth_data __initdata micro9_eth_data = {
63*4882a593Smuzhiyun .phy_id = 0x1f,
64*4882a593Smuzhiyun };
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun
micro9_init_machine(void)67*4882a593Smuzhiyun static void __init micro9_init_machine(void)
68*4882a593Smuzhiyun {
69*4882a593Smuzhiyun ep93xx_init_devices();
70*4882a593Smuzhiyun ep93xx_register_eth(µ9_eth_data, 1);
71*4882a593Smuzhiyun micro9_register_flash();
72*4882a593Smuzhiyun }
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun #ifdef CONFIG_MACH_MICRO9H
76*4882a593Smuzhiyun MACHINE_START(MICRO9, "Contec Micro9-High")
77*4882a593Smuzhiyun /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
78*4882a593Smuzhiyun .atag_offset = 0x100,
79*4882a593Smuzhiyun .map_io = ep93xx_map_io,
80*4882a593Smuzhiyun .init_irq = ep93xx_init_irq,
81*4882a593Smuzhiyun .init_time = ep93xx_timer_init,
82*4882a593Smuzhiyun .init_machine = micro9_init_machine,
83*4882a593Smuzhiyun .init_late = ep93xx_init_late,
84*4882a593Smuzhiyun .restart = ep93xx_restart,
85*4882a593Smuzhiyun MACHINE_END
86*4882a593Smuzhiyun #endif
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun #ifdef CONFIG_MACH_MICRO9M
89*4882a593Smuzhiyun MACHINE_START(MICRO9M, "Contec Micro9-Mid")
90*4882a593Smuzhiyun /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
91*4882a593Smuzhiyun .atag_offset = 0x100,
92*4882a593Smuzhiyun .map_io = ep93xx_map_io,
93*4882a593Smuzhiyun .init_irq = ep93xx_init_irq,
94*4882a593Smuzhiyun .init_time = ep93xx_timer_init,
95*4882a593Smuzhiyun .init_machine = micro9_init_machine,
96*4882a593Smuzhiyun .init_late = ep93xx_init_late,
97*4882a593Smuzhiyun .restart = ep93xx_restart,
98*4882a593Smuzhiyun MACHINE_END
99*4882a593Smuzhiyun #endif
100*4882a593Smuzhiyun
101*4882a593Smuzhiyun #ifdef CONFIG_MACH_MICRO9L
102*4882a593Smuzhiyun MACHINE_START(MICRO9L, "Contec Micro9-Lite")
103*4882a593Smuzhiyun /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
104*4882a593Smuzhiyun .atag_offset = 0x100,
105*4882a593Smuzhiyun .map_io = ep93xx_map_io,
106*4882a593Smuzhiyun .init_irq = ep93xx_init_irq,
107*4882a593Smuzhiyun .init_time = ep93xx_timer_init,
108*4882a593Smuzhiyun .init_machine = micro9_init_machine,
109*4882a593Smuzhiyun .init_late = ep93xx_init_late,
110*4882a593Smuzhiyun .restart = ep93xx_restart,
111*4882a593Smuzhiyun MACHINE_END
112*4882a593Smuzhiyun #endif
113*4882a593Smuzhiyun
114*4882a593Smuzhiyun #ifdef CONFIG_MACH_MICRO9S
115*4882a593Smuzhiyun MACHINE_START(MICRO9S, "Contec Micro9-Slim")
116*4882a593Smuzhiyun /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
117*4882a593Smuzhiyun .atag_offset = 0x100,
118*4882a593Smuzhiyun .map_io = ep93xx_map_io,
119*4882a593Smuzhiyun .init_irq = ep93xx_init_irq,
120*4882a593Smuzhiyun .init_time = ep93xx_timer_init,
121*4882a593Smuzhiyun .init_machine = micro9_init_machine,
122*4882a593Smuzhiyun .init_late = ep93xx_init_late,
123*4882a593Smuzhiyun .restart = ep93xx_restart,
124*4882a593Smuzhiyun MACHINE_END
125*4882a593Smuzhiyun #endif
126