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_device.h>
10 #include <linux/irq.h>
11 #include <linux/io.h>
12 #include <linux/mtd/partitions.h>
13
14 #include <mach/hardware.h>
15 #include <asm/setup.h>
16 #include <asm/mach-types.h>
17
18 #include <asm/mach/arch.h>
19 #include <asm/mach/map.h>
20 #include <asm/mach/flash.h>
21 #include <asm/mach/serial_sa1100.h>
22 #include <mach/irqs.h>
23
24 #include "generic.h"
25
26
27 /*
28 * Ethernet IRQ mappings
29 */
30
31 #define PLEB_ETH0_P (0x20000300) /* Ethernet 0 in PCMCIA0 IO */
32 #define PLEB_ETH0_V (0xf6000300)
33
34 #define GPIO_ETH0_IRQ GPIO_GPIO(21)
35 #define GPIO_ETH0_EN GPIO_GPIO(26)
36
37 #define IRQ_GPIO_ETH0_IRQ IRQ_GPIO21
38
39 static struct resource smc91x_resources[] = {
40 [0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000),
41 #if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */
42 [1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ),
43 #endif
44 };
45
46
47 static struct platform_device smc91x_device = {
48 .name = "smc91x",
49 .id = 0,
50 .num_resources = ARRAY_SIZE(smc91x_resources),
51 .resource = smc91x_resources,
52 };
53
54 static struct platform_device *devices[] __initdata = {
55 &smc91x_device,
56 };
57
58
59 /*
60 * Pleb's memory map
61 * has flash memory (typically 4 or 8 meg) selected by
62 * the two SA1100 lowest chip select outputs.
63 */
64 static struct resource pleb_flash_resources[] = {
65 [0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M),
66 [1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M),
67 };
68
69
70 static struct mtd_partition pleb_partitions[] = {
71 {
72 .name = "blob",
73 .offset = 0,
74 .size = 0x00020000,
75 }, {
76 .name = "kernel",
77 .offset = MTDPART_OFS_APPEND,
78 .size = 0x000e0000,
79 }, {
80 .name = "rootfs",
81 .offset = MTDPART_OFS_APPEND,
82 .size = 0x00300000,
83 }
84 };
85
86
87 static struct flash_platform_data pleb_flash_data = {
88 .map_name = "cfi_probe",
89 .parts = pleb_partitions,
90 .nr_parts = ARRAY_SIZE(pleb_partitions),
91 };
92
93
pleb_init(void)94 static void __init pleb_init(void)
95 {
96 sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources,
97 ARRAY_SIZE(pleb_flash_resources));
98
99
100 platform_add_devices(devices, ARRAY_SIZE(devices));
101 }
102
103
pleb_map_io(void)104 static void __init pleb_map_io(void)
105 {
106 sa1100_map_io();
107
108 sa1100_register_uart(0, 3);
109 sa1100_register_uart(1, 1);
110
111 GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
112 GPDR |= GPIO_UART_TXD;
113 GPDR &= ~GPIO_UART_RXD;
114 PPAR |= PPAR_UPR;
115
116 /*
117 * Fix expansion memory timing for network card
118 */
119 MECR = ((2<<10) | (2<<5) | (2<<0));
120
121 /*
122 * Enable the SMC ethernet controller
123 */
124 GPDR |= GPIO_ETH0_EN; /* set to output */
125 GPCR = GPIO_ETH0_EN; /* clear MCLK (enable smc) */
126
127 GPDR &= ~GPIO_ETH0_IRQ;
128
129 irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
130 }
131
132 MACHINE_START(PLEB, "PLEB")
133 .map_io = pleb_map_io,
134 .nr_irqs = SA1100_NR_IRQS,
135 .init_irq = sa1100_init_irq,
136 .timer = &sa1100_timer,
137 .init_machine = pleb_init,
138 .restart = sa11x0_restart,
139 MACHINE_END
140