GNU Linux-libre 4.19.314-gnu1
[releases.git] / arch / arm / mach-sa1100 / shannon.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * linux/arch/arm/mach-sa1100/shannon.c
4  */
5
6 #include <linux/init.h>
7 #include <linux/device.h>
8 #include <linux/gpio/machine.h>
9 #include <linux/kernel.h>
10 #include <linux/platform_data/sa11x0-serial.h>
11 #include <linux/tty.h>
12 #include <linux/mtd/mtd.h>
13 #include <linux/mtd/partitions.h>
14 #include <linux/regulator/fixed.h>
15 #include <linux/regulator/machine.h>
16
17 #include <video/sa1100fb.h>
18
19 #include <mach/hardware.h>
20 #include <asm/mach-types.h>
21 #include <asm/setup.h>
22
23 #include <asm/mach/arch.h>
24 #include <asm/mach/flash.h>
25 #include <asm/mach/map.h>
26 #include <linux/platform_data/mfd-mcp-sa11x0.h>
27 #include <mach/shannon.h>
28 #include <mach/irqs.h>
29
30 #include "generic.h"
31
32 static struct mtd_partition shannon_partitions[] = {
33         {
34                 .name           = "BLOB boot loader",
35                 .offset         = 0,
36                 .size           = 0x20000
37         },
38         {
39                 .name           = "kernel",
40                 .offset         = MTDPART_OFS_APPEND,
41                 .size           = 0xe0000
42         },
43         {
44                 .name           = "initrd",
45                 .offset         = MTDPART_OFS_APPEND,   
46                 .size           = MTDPART_SIZ_FULL
47         }
48 };
49
50 static struct flash_platform_data shannon_flash_data = {
51         .map_name       = "cfi_probe",
52         .parts          = shannon_partitions,
53         .nr_parts       = ARRAY_SIZE(shannon_partitions),
54 };
55
56 static struct resource shannon_flash_resource =
57         DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);
58
59 static struct mcp_plat_data shannon_mcp_data = {
60         .mccr0          = MCCR0_ADM,
61         .sclk_rate      = 11981000,
62 };
63
64 static struct sa1100fb_mach_info shannon_lcd_info = {
65         .pixclock       = 152500,       .bpp            = 8,
66         .xres           = 640,          .yres           = 480,
67
68         .hsync_len      = 4,            .vsync_len      = 3,
69         .left_margin    = 2,            .upper_margin   = 0,
70         .right_margin   = 1,            .lower_margin   = 0,
71
72         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
73
74         .lccr0          = LCCR0_Color | LCCR0_Dual | LCCR0_Pas,
75         .lccr3          = LCCR3_ACBsDiv(512),
76 };
77
78 static struct gpiod_lookup_table shannon_pcmcia0_gpio_table = {
79         .dev_id = "sa11x0-pcmcia.0",
80         .table = {
81                 GPIO_LOOKUP("gpio", 24, "detect", GPIO_ACTIVE_LOW),
82                 GPIO_LOOKUP("gpio", 26, "ready", GPIO_ACTIVE_HIGH),
83                 { },
84         },
85 };
86
87 static struct gpiod_lookup_table shannon_pcmcia1_gpio_table = {
88         .dev_id = "sa11x0-pcmcia.1",
89         .table = {
90                 GPIO_LOOKUP("gpio", 25, "detect", GPIO_ACTIVE_LOW),
91                 GPIO_LOOKUP("gpio", 27, "ready", GPIO_ACTIVE_HIGH),
92                 { },
93         },
94 };
95
96 static struct regulator_consumer_supply shannon_cf_vcc_consumers[] = {
97         REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.0"),
98         REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
99 };
100
101 static struct fixed_voltage_config shannon_cf_vcc_pdata __initdata = {
102         .supply_name = "cf-power",
103         .microvolts = 3300000,
104         .enabled_at_boot = 1,
105         .gpio = -EINVAL,
106 };
107
108 static void __init shannon_init(void)
109 {
110         sa11x0_register_fixed_regulator(0, &shannon_cf_vcc_pdata,
111                                         shannon_cf_vcc_consumers,
112                                         ARRAY_SIZE(shannon_cf_vcc_consumers));
113         sa11x0_register_pcmcia(0, &shannon_pcmcia0_gpio_table);
114         sa11x0_register_pcmcia(1, &shannon_pcmcia1_gpio_table);
115         sa11x0_ppc_configure_mcp();
116         sa11x0_register_lcd(&shannon_lcd_info);
117         sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
118         sa11x0_register_mcp(&shannon_mcp_data);
119 }
120
121 static void __init shannon_map_io(void)
122 {
123         sa1100_map_io();
124
125         sa1100_register_uart(0, 3);
126         sa1100_register_uart(1, 1);
127
128         Ser1SDCR0 |= SDCR0_SUS;
129         GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
130         GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
131         GPDR &= ~GPIO_UART_RXD;
132         PPAR |= PPAR_UPR;
133
134         /* reset the codec */
135         GPCR = SHANNON_GPIO_CODEC_RESET;
136         GPSR = SHANNON_GPIO_CODEC_RESET;
137 }
138
139 MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
140         .atag_offset    = 0x100,
141         .map_io         = shannon_map_io,
142         .nr_irqs        = SA1100_NR_IRQS,
143         .init_irq       = sa1100_init_irq,
144         .init_time      = sa1100_timer_init,
145         .init_machine   = shannon_init,
146         .init_late      = sa11x0_init_late,
147         .restart        = sa11x0_restart,
148 MACHINE_END