1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-sa1100/cerf.c
4 *
5 * Apr-2003 : Removed some old PDA crud [FB]
6 * Oct-2003 : Added uart2 resource [FB]
7 * Jan-2004 : Removed io map for flash [FB]
8 */
9
10 #include <linux/init.h>
11 #include <linux/gpio/machine.h>
12 #include <linux/kernel.h>
13 #include <linux/tty.h>
14 #include <linux/platform_data/sa11x0-serial.h>
15 #include <linux/platform_device.h>
16 #include <linux/irq.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/gpio.h>
20 #include <linux/leds.h>
21
22 #include <mach/hardware.h>
23 #include <asm/setup.h>
24
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/flash.h>
28 #include <asm/mach/map.h>
29
30 #include <mach/cerf.h>
31 #include <linux/platform_data/mfd-mcp-sa11x0.h>
32 #include <mach/irqs.h>
33 #include "generic.h"
34
35 static struct resource cerfuart2_resources[] = {
36 [0] = DEFINE_RES_MEM(0x80030000, SZ_64K),
37 };
38
39 static struct platform_device cerfuart2_device = {
40 .name = "sa11x0-uart",
41 .id = 2,
42 .num_resources = ARRAY_SIZE(cerfuart2_resources),
43 .resource = cerfuart2_resources,
44 };
45
46 /* Compact Flash */
47 static struct gpiod_lookup_table cerf_cf_gpio_table = {
48 .dev_id = "sa11x0-pcmcia.1",
49 .table = {
50 GPIO_LOOKUP("gpio", 19, "bvd2", GPIO_ACTIVE_HIGH),
51 GPIO_LOOKUP("gpio", 20, "bvd1", GPIO_ACTIVE_HIGH),
52 GPIO_LOOKUP("gpio", 21, "reset", GPIO_ACTIVE_HIGH),
53 GPIO_LOOKUP("gpio", 22, "ready", GPIO_ACTIVE_HIGH),
54 GPIO_LOOKUP("gpio", 23, "detect", GPIO_ACTIVE_LOW),
55 { },
56 },
57 };
58
59 /* LEDs */
60 struct gpio_led cerf_gpio_leds[] = {
61 {
62 .name = "cerf:d0",
63 .default_trigger = "heartbeat",
64 .gpio = 0,
65 },
66 {
67 .name = "cerf:d1",
68 .default_trigger = "cpu0",
69 .gpio = 1,
70 },
71 {
72 .name = "cerf:d2",
73 .default_trigger = "default-on",
74 .gpio = 2,
75 },
76 {
77 .name = "cerf:d3",
78 .default_trigger = "default-on",
79 .gpio = 3,
80 },
81
82 };
83
84 static struct gpio_led_platform_data cerf_gpio_led_info = {
85 .leds = cerf_gpio_leds,
86 .num_leds = ARRAY_SIZE(cerf_gpio_leds),
87 };
88
89 static struct platform_device *cerf_devices[] __initdata = {
90 &cerfuart2_device,
91 };
92
93 #ifdef CONFIG_SA1100_CERF_FLASH_32MB
94 # define CERF_FLASH_SIZE 0x02000000
95 #elif defined CONFIG_SA1100_CERF_FLASH_16MB
96 # define CERF_FLASH_SIZE 0x01000000
97 #elif defined CONFIG_SA1100_CERF_FLASH_8MB
98 # define CERF_FLASH_SIZE 0x00800000
99 #else
100 # error "Undefined flash size for CERF"
101 #endif
102
103 static struct mtd_partition cerf_partitions[] = {
104 {
105 .name = "Bootloader",
106 .size = 0x00020000,
107 .offset = 0x00000000,
108 }, {
109 .name = "Params",
110 .size = 0x00040000,
111 .offset = 0x00020000,
112 }, {
113 .name = "Kernel",
114 .size = 0x00100000,
115 .offset = 0x00060000,
116 }, {
117 .name = "Filesystem",
118 .size = CERF_FLASH_SIZE-0x00160000,
119 .offset = 0x00160000,
120 }
121 };
122
123 static struct flash_platform_data cerf_flash_data = {
124 .map_name = "cfi_probe",
125 .parts = cerf_partitions,
126 .nr_parts = ARRAY_SIZE(cerf_partitions),
127 };
128
129 static struct resource cerf_flash_resource =
130 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
131
cerf_init_irq(void)132 static void __init cerf_init_irq(void)
133 {
134 sa1100_init_irq();
135 irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
136 }
137
138 static struct map_desc cerf_io_desc[] __initdata = {
139 { /* Crystal Ethernet Chip */
140 .virtual = 0xf0000000,
141 .pfn = __phys_to_pfn(0x08000000),
142 .length = 0x00100000,
143 .type = MT_DEVICE
144 }
145 };
146
cerf_map_io(void)147 static void __init cerf_map_io(void)
148 {
149 sa1100_map_io();
150 iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
151
152 sa1100_register_uart(0, 3);
153 sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
154 sa1100_register_uart(2, 1);
155 }
156
157 static struct mcp_plat_data cerf_mcp_data = {
158 .mccr0 = MCCR0_ADM,
159 .sclk_rate = 11981000,
160 };
161
cerf_init(void)162 static void __init cerf_init(void)
163 {
164 sa11x0_ppc_configure_mcp();
165 platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
166 gpio_led_register_device(-1, &cerf_gpio_led_info);
167 sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
168 sa11x0_register_mcp(&cerf_mcp_data);
169 sa11x0_register_pcmcia(1, &cerf_cf_gpio_table);
170 }
171
172 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
173 /* Maintainer: support@intrinsyc.com */
174 .map_io = cerf_map_io,
175 .nr_irqs = SA1100_NR_IRQS,
176 .init_irq = cerf_init_irq,
177 .init_time = sa1100_timer_init,
178 .init_machine = cerf_init,
179 .init_late = sa11x0_init_late,
180 .restart = sa11x0_restart,
181 MACHINE_END
182