1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/arch/arm/mach-sa1100/pleb.c
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include <linux/init.h>
7*4882a593Smuzhiyun #include <linux/kernel.h>
8*4882a593Smuzhiyun #include <linux/tty.h>
9*4882a593Smuzhiyun #include <linux/ioport.h>
10*4882a593Smuzhiyun #include <linux/platform_data/sa11x0-serial.h>
11*4882a593Smuzhiyun #include <linux/platform_device.h>
12*4882a593Smuzhiyun #include <linux/irq.h>
13*4882a593Smuzhiyun #include <linux/io.h>
14*4882a593Smuzhiyun #include <linux/mtd/partitions.h>
15*4882a593Smuzhiyun #include <linux/smc91x.h>
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #include <mach/hardware.h>
18*4882a593Smuzhiyun #include <asm/setup.h>
19*4882a593Smuzhiyun #include <asm/mach-types.h>
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun #include <asm/mach/arch.h>
22*4882a593Smuzhiyun #include <asm/mach/map.h>
23*4882a593Smuzhiyun #include <asm/mach/flash.h>
24*4882a593Smuzhiyun #include <mach/irqs.h>
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun #include "generic.h"
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun /*
30*4882a593Smuzhiyun * Ethernet IRQ mappings
31*4882a593Smuzhiyun */
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #define PLEB_ETH0_P (0x20000300) /* Ethernet 0 in PCMCIA0 IO */
34*4882a593Smuzhiyun #define PLEB_ETH0_V (0xf6000300)
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun #define GPIO_ETH0_IRQ GPIO_GPIO(21)
37*4882a593Smuzhiyun #define GPIO_ETH0_EN GPIO_GPIO(26)
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun #define IRQ_GPIO_ETH0_IRQ IRQ_GPIO21
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun static struct resource smc91x_resources[] = {
42*4882a593Smuzhiyun [0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000),
43*4882a593Smuzhiyun #if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */
44*4882a593Smuzhiyun [1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ),
45*4882a593Smuzhiyun #endif
46*4882a593Smuzhiyun };
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun static struct smc91x_platdata smc91x_platdata = {
49*4882a593Smuzhiyun .flags = SMC91X_USE_16BIT | SMC91X_USE_8BIT | SMC91X_NOWAIT,
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun static struct platform_device smc91x_device = {
53*4882a593Smuzhiyun .name = "smc91x",
54*4882a593Smuzhiyun .id = 0,
55*4882a593Smuzhiyun .num_resources = ARRAY_SIZE(smc91x_resources),
56*4882a593Smuzhiyun .resource = smc91x_resources,
57*4882a593Smuzhiyun .dev = {
58*4882a593Smuzhiyun .platform_data = &smc91x_platdata,
59*4882a593Smuzhiyun },
60*4882a593Smuzhiyun };
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun static struct platform_device *devices[] __initdata = {
63*4882a593Smuzhiyun &smc91x_device,
64*4882a593Smuzhiyun };
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun /*
68*4882a593Smuzhiyun * Pleb's memory map
69*4882a593Smuzhiyun * has flash memory (typically 4 or 8 meg) selected by
70*4882a593Smuzhiyun * the two SA1100 lowest chip select outputs.
71*4882a593Smuzhiyun */
72*4882a593Smuzhiyun static struct resource pleb_flash_resources[] = {
73*4882a593Smuzhiyun [0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M),
74*4882a593Smuzhiyun [1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M),
75*4882a593Smuzhiyun };
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun static struct mtd_partition pleb_partitions[] = {
79*4882a593Smuzhiyun {
80*4882a593Smuzhiyun .name = "blob",
81*4882a593Smuzhiyun .offset = 0,
82*4882a593Smuzhiyun .size = 0x00020000,
83*4882a593Smuzhiyun }, {
84*4882a593Smuzhiyun .name = "kernel",
85*4882a593Smuzhiyun .offset = MTDPART_OFS_APPEND,
86*4882a593Smuzhiyun .size = 0x000e0000,
87*4882a593Smuzhiyun }, {
88*4882a593Smuzhiyun .name = "rootfs",
89*4882a593Smuzhiyun .offset = MTDPART_OFS_APPEND,
90*4882a593Smuzhiyun .size = 0x00300000,
91*4882a593Smuzhiyun }
92*4882a593Smuzhiyun };
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun static struct flash_platform_data pleb_flash_data = {
96*4882a593Smuzhiyun .map_name = "cfi_probe",
97*4882a593Smuzhiyun .parts = pleb_partitions,
98*4882a593Smuzhiyun .nr_parts = ARRAY_SIZE(pleb_partitions),
99*4882a593Smuzhiyun };
100*4882a593Smuzhiyun
101*4882a593Smuzhiyun
pleb_init(void)102*4882a593Smuzhiyun static void __init pleb_init(void)
103*4882a593Smuzhiyun {
104*4882a593Smuzhiyun sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources,
105*4882a593Smuzhiyun ARRAY_SIZE(pleb_flash_resources));
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun
108*4882a593Smuzhiyun platform_add_devices(devices, ARRAY_SIZE(devices));
109*4882a593Smuzhiyun }
110*4882a593Smuzhiyun
111*4882a593Smuzhiyun
pleb_map_io(void)112*4882a593Smuzhiyun static void __init pleb_map_io(void)
113*4882a593Smuzhiyun {
114*4882a593Smuzhiyun sa1100_map_io();
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun sa1100_register_uart(0, 3);
117*4882a593Smuzhiyun sa1100_register_uart(1, 1);
118*4882a593Smuzhiyun
119*4882a593Smuzhiyun GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
120*4882a593Smuzhiyun GPDR |= GPIO_UART_TXD;
121*4882a593Smuzhiyun GPDR &= ~GPIO_UART_RXD;
122*4882a593Smuzhiyun PPAR |= PPAR_UPR;
123*4882a593Smuzhiyun
124*4882a593Smuzhiyun /*
125*4882a593Smuzhiyun * Fix expansion memory timing for network card
126*4882a593Smuzhiyun */
127*4882a593Smuzhiyun MECR = ((2<<10) | (2<<5) | (2<<0));
128*4882a593Smuzhiyun
129*4882a593Smuzhiyun /*
130*4882a593Smuzhiyun * Enable the SMC ethernet controller
131*4882a593Smuzhiyun */
132*4882a593Smuzhiyun GPDR |= GPIO_ETH0_EN; /* set to output */
133*4882a593Smuzhiyun GPCR = GPIO_ETH0_EN; /* clear MCLK (enable smc) */
134*4882a593Smuzhiyun
135*4882a593Smuzhiyun GPDR &= ~GPIO_ETH0_IRQ;
136*4882a593Smuzhiyun
137*4882a593Smuzhiyun irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
138*4882a593Smuzhiyun }
139*4882a593Smuzhiyun
140*4882a593Smuzhiyun MACHINE_START(PLEB, "PLEB")
141*4882a593Smuzhiyun .map_io = pleb_map_io,
142*4882a593Smuzhiyun .nr_irqs = SA1100_NR_IRQS,
143*4882a593Smuzhiyun .init_irq = sa1100_init_irq,
144*4882a593Smuzhiyun .init_time = sa1100_timer_init,
145*4882a593Smuzhiyun .init_machine = pleb_init,
146*4882a593Smuzhiyun .init_late = sa11x0_init_late,
147*4882a593Smuzhiyun .restart = sa11x0_restart,
148*4882a593Smuzhiyun MACHINE_END
149