Merge tag 'm68k-for-v4.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert...
[platform/kernel/linux-exynos.git] / arch / arm / mach-sa1100 / pleb.c
1 /*
2  * linux/arch/arm/mach-sa1100/pleb.c
3  */
4
5 #include <linux/init.h>
6 #include <linux/kernel.h>
7 #include <linux/tty.h>
8 #include <linux/ioport.h>
9 #include <linux/platform_data/sa11x0-serial.h>
10 #include <linux/platform_device.h>
11 #include <linux/irq.h>
12 #include <linux/io.h>
13 #include <linux/mtd/partitions.h>
14 #include <linux/smc91x.h>
15
16 #include <mach/hardware.h>
17 #include <asm/setup.h>
18 #include <asm/mach-types.h>
19
20 #include <asm/mach/arch.h>
21 #include <asm/mach/map.h>
22 #include <asm/mach/flash.h>
23 #include <mach/irqs.h>
24
25 #include "generic.h"
26
27
28 /*
29  * Ethernet IRQ mappings
30  */
31
32 #define PLEB_ETH0_P             (0x20000300)    /* Ethernet 0 in PCMCIA0 IO */
33 #define PLEB_ETH0_V             (0xf6000300)
34
35 #define GPIO_ETH0_IRQ           GPIO_GPIO(21)
36 #define GPIO_ETH0_EN            GPIO_GPIO(26)
37
38 #define IRQ_GPIO_ETH0_IRQ       IRQ_GPIO21
39
40 static struct resource smc91x_resources[] = {
41         [0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000),
42 #if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */
43         [1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ),
44 #endif
45 };
46
47 static struct smc91x_platdata smc91x_platdata = {
48         .flags = SMC91X_USE_16BIT | SMC91X_USE_8BIT | SMC91X_NOWAIT,
49 };
50
51 static struct platform_device smc91x_device = {
52         .name           = "smc91x",
53         .id             = 0,
54         .num_resources  = ARRAY_SIZE(smc91x_resources),
55         .resource       = smc91x_resources,
56         .dev = {
57                 .platform_data  = &smc91x_platdata,
58         },
59 };
60
61 static struct platform_device *devices[] __initdata = {
62         &smc91x_device,
63 };
64
65
66 /*
67  * Pleb's memory map
68  * has flash memory (typically 4 or 8 meg) selected by
69  * the two SA1100 lowest chip select outputs.
70  */
71 static struct resource pleb_flash_resources[] = {
72         [0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M),
73         [1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M),
74 };
75
76
77 static struct mtd_partition pleb_partitions[] = {
78         {
79                 .name           = "blob",
80                 .offset         = 0,
81                 .size           = 0x00020000,
82         }, {
83                 .name           = "kernel",
84                 .offset         = MTDPART_OFS_APPEND,
85                 .size           = 0x000e0000,
86         }, {
87                 .name           = "rootfs",
88                 .offset         = MTDPART_OFS_APPEND,
89                 .size           = 0x00300000,
90         }
91 };
92
93
94 static struct flash_platform_data pleb_flash_data = {
95         .map_name = "cfi_probe",
96         .parts = pleb_partitions,
97         .nr_parts = ARRAY_SIZE(pleb_partitions),
98 };
99
100
101 static void __init pleb_init(void)
102 {
103         sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources,
104                               ARRAY_SIZE(pleb_flash_resources));
105
106
107         platform_add_devices(devices, ARRAY_SIZE(devices));
108 }
109
110
111 static void __init pleb_map_io(void)
112 {
113         sa1100_map_io();
114
115         sa1100_register_uart(0, 3);
116         sa1100_register_uart(1, 1);
117
118         GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
119         GPDR |= GPIO_UART_TXD;
120         GPDR &= ~GPIO_UART_RXD;
121         PPAR |= PPAR_UPR;
122
123         /*
124          * Fix expansion memory timing for network card
125          */
126         MECR = ((2<<10) | (2<<5) | (2<<0));
127
128         /*
129          * Enable the SMC ethernet controller
130          */
131         GPDR |= GPIO_ETH0_EN;   /* set to output */
132         GPCR  = GPIO_ETH0_EN;   /* clear MCLK (enable smc) */
133
134         GPDR &= ~GPIO_ETH0_IRQ;
135
136         irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
137 }
138
139 MACHINE_START(PLEB, "PLEB")
140         .map_io         = pleb_map_io,
141         .nr_irqs        = SA1100_NR_IRQS,
142         .init_irq       = sa1100_init_irq,
143         .init_time      = sa1100_timer_init,
144         .init_machine   = pleb_init,
145         .init_late      = sa11x0_init_late,
146         .restart        = sa11x0_restart,
147 MACHINE_END