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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * linux/arch/arm/mach-sa1100/pleb.c | |
4 | */ | |
5 | ||
6 | #include <linux/init.h> | |
7 | #include <linux/kernel.h> | |
8 | #include <linux/tty.h> | |
9 | #include <linux/ioport.h> | |
6920b5a7 | 10 | #include <linux/platform_data/sa11x0-serial.h> |
d052d1be | 11 | #include <linux/platform_device.h> |
119c641c | 12 | #include <linux/irq.h> |
fced80c7 | 13 | #include <linux/io.h> |
1da177e4 | 14 | #include <linux/mtd/partitions.h> |
b70661c7 | 15 | #include <linux/smc91x.h> |
1da177e4 | 16 | |
a09e64fb | 17 | #include <mach/hardware.h> |
1da177e4 LT |
18 | #include <asm/setup.h> |
19 | #include <asm/mach-types.h> | |
20 | ||
21 | #include <asm/mach/arch.h> | |
22 | #include <asm/mach/map.h> | |
23 | #include <asm/mach/flash.h> | |
a09e64fb | 24 | #include <mach/irqs.h> |
1da177e4 LT |
25 | |
26 | #include "generic.h" | |
27 | ||
28 | ||
29 | /* | |
30 | * Ethernet IRQ mappings | |
31 | */ | |
32 | ||
33 | #define PLEB_ETH0_P (0x20000300) /* Ethernet 0 in PCMCIA0 IO */ | |
34 | #define PLEB_ETH0_V (0xf6000300) | |
35 | ||
36 | #define GPIO_ETH0_IRQ GPIO_GPIO(21) | |
37 | #define GPIO_ETH0_EN GPIO_GPIO(26) | |
38 | ||
39 | #define IRQ_GPIO_ETH0_IRQ IRQ_GPIO21 | |
40 | ||
41 | static struct resource smc91x_resources[] = { | |
a181099e | 42 | [0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000), |
1da177e4 | 43 | #if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */ |
a181099e | 44 | [1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ), |
1da177e4 LT |
45 | #endif |
46 | }; | |
47 | ||
b70661c7 | 48 | static struct smc91x_platdata smc91x_platdata = { |
2fb04fdf | 49 | .flags = SMC91X_USE_16BIT | SMC91X_USE_8BIT | SMC91X_NOWAIT, |
b70661c7 | 50 | }; |
1da177e4 LT |
51 | |
52 | static struct platform_device smc91x_device = { | |
53 | .name = "smc91x", | |
54 | .id = 0, | |
55 | .num_resources = ARRAY_SIZE(smc91x_resources), | |
56 | .resource = smc91x_resources, | |
b70661c7 | 57 | .dev = { |
04b91701 | 58 | .platform_data = &smc91x_platdata, |
b70661c7 | 59 | }, |
1da177e4 LT |
60 | }; |
61 | ||
62 | static struct platform_device *devices[] __initdata = { | |
63 | &smc91x_device, | |
64 | }; | |
65 | ||
66 | ||
67 | /* | |
68 | * Pleb's memory map | |
69 | * has flash memory (typically 4 or 8 meg) selected by | |
70 | * the two SA1100 lowest chip select outputs. | |
71 | */ | |
72 | static struct resource pleb_flash_resources[] = { | |
a181099e RK |
73 | [0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M), |
74 | [1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M), | |
1da177e4 LT |
75 | }; |
76 | ||
77 | ||
78 | static struct mtd_partition pleb_partitions[] = { | |
79 | { | |
80 | .name = "blob", | |
bda03086 | 81 | .offset = 0, |
1da177e4 LT |
82 | .size = 0x00020000, |
83 | }, { | |
84 | .name = "kernel", | |
bda03086 | 85 | .offset = MTDPART_OFS_APPEND, |
1da177e4 LT |
86 | .size = 0x000e0000, |
87 | }, { | |
88 | .name = "rootfs", | |
bda03086 | 89 | .offset = MTDPART_OFS_APPEND, |
1da177e4 LT |
90 | .size = 0x00300000, |
91 | } | |
92 | }; | |
93 | ||
94 | ||
95 | static struct flash_platform_data pleb_flash_data = { | |
96 | .map_name = "cfi_probe", | |
97 | .parts = pleb_partitions, | |
98 | .nr_parts = ARRAY_SIZE(pleb_partitions), | |
99 | }; | |
100 | ||
101 | ||
102 | static void __init pleb_init(void) | |
103 | { | |
7a5b4e16 | 104 | sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources, |
1da177e4 LT |
105 | ARRAY_SIZE(pleb_flash_resources)); |
106 | ||
107 | ||
108 | platform_add_devices(devices, ARRAY_SIZE(devices)); | |
109 | } | |
110 | ||
111 | ||
112 | static void __init pleb_map_io(void) | |
113 | { | |
114 | sa1100_map_io(); | |
115 | ||
116 | sa1100_register_uart(0, 3); | |
93982535 | 117 | sa1100_register_uart(1, 1); |
1da177e4 | 118 | |
93982535 KE |
119 | GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD); |
120 | GPDR |= GPIO_UART_TXD; | |
121 | GPDR &= ~GPIO_UART_RXD; | |
122 | PPAR |= PPAR_UPR; | |
1da177e4 LT |
123 | |
124 | /* | |
125 | * Fix expansion memory timing for network card | |
126 | */ | |
127 | MECR = ((2<<10) | (2<<5) | (2<<0)); | |
128 | ||
129 | /* | |
130 | * Enable the SMC ethernet controller | |
131 | */ | |
132 | GPDR |= GPIO_ETH0_EN; /* set to output */ | |
133 | GPCR = GPIO_ETH0_EN; /* clear MCLK (enable smc) */ | |
134 | ||
135 | GPDR &= ~GPIO_ETH0_IRQ; | |
136 | ||
6845664a | 137 | irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING); |
1da177e4 LT |
138 | } |
139 | ||
140 | MACHINE_START(PLEB, "PLEB") | |
e9dea0c6 | 141 | .map_io = pleb_map_io, |
f314f33b | 142 | .nr_irqs = SA1100_NR_IRQS, |
e9dea0c6 | 143 | .init_irq = sa1100_init_irq, |
6bb27d73 | 144 | .init_time = sa1100_timer_init, |
1da177e4 | 145 | .init_machine = pleb_init, |
7fea1ba5 | 146 | .init_late = sa11x0_init_late, |
d9ca5839 | 147 | .restart = sa11x0_restart, |
1da177e4 | 148 | MACHINE_END |