GNU Linux-libre 4.19.314-gnu1
[releases.git] / arch / arm / mach-sa1100 / lart.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * linux/arch/arm/mach-sa1100/lart.c
4  */
5
6 #include <linux/init.h>
7 #include <linux/kernel.h>
8 #include <linux/platform_data/sa11x0-serial.h>
9 #include <linux/tty.h>
10 #include <linux/gpio.h>
11 #include <linux/leds.h>
12 #include <linux/platform_device.h>
13
14 #include <video/sa1100fb.h>
15
16 #include <mach/hardware.h>
17 #include <asm/setup.h>
18 #include <asm/mach-types.h>
19 #include <asm/page.h>
20
21 #include <asm/mach/arch.h>
22 #include <asm/mach/map.h>
23 #include <linux/platform_data/mfd-mcp-sa11x0.h>
24 #include <mach/irqs.h>
25
26 #include "generic.h"
27
28 static struct mcp_plat_data lart_mcp_data = {
29         .mccr0          = MCCR0_ADM,
30         .sclk_rate      = 11981000,
31 };
32
33 #ifdef LART_GREY_LCD
34 static struct sa1100fb_mach_info lart_grey_info = {
35         .pixclock       = 150000,       .bpp            = 4,
36         .xres           = 320,          .yres           = 240,
37
38         .hsync_len      = 1,            .vsync_len      = 1,
39         .left_margin    = 4,            .upper_margin   = 0,
40         .right_margin   = 2,            .lower_margin   = 0,
41
42         .cmap_greyscale = 1,
43         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
44
45         .lccr0          = LCCR0_Mono | LCCR0_Sngl | LCCR0_Pas | LCCR0_4PixMono,
46         .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(512),
47 };
48 #endif
49 #ifdef LART_COLOR_LCD
50 static struct sa1100fb_mach_info lart_color_info = {
51         .pixclock       = 150000,       .bpp            = 16,
52         .xres           = 320,          .yres           = 240,
53
54         .hsync_len      = 2,            .vsync_len      = 3,
55         .left_margin    = 69,           .upper_margin   = 14,
56         .right_margin   = 8,            .lower_margin   = 4,
57
58         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
59         .lccr3          = LCCR3_OutEnH | LCCR3_PixFlEdg | LCCR3_ACBsDiv(512),
60 };
61 #endif
62 #ifdef LART_VIDEO_OUT
63 static struct sa1100fb_mach_info lart_video_info = {
64         .pixclock       = 39721,        .bpp            = 16,
65         .xres           = 640,          .yres           = 480,
66
67         .hsync_len      = 95,           .vsync_len      = 2,
68         .left_margin    = 40,           .upper_margin   = 32,
69         .right_margin   = 24,           .lower_margin   = 11,
70
71         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
72
73         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
74         .lccr3          = LCCR3_OutEnL | LCCR3_PixFlEdg | LCCR3_ACBsDiv(512),
75 };
76 #endif
77
78 #ifdef LART_KIT01_LCD
79 static struct sa1100fb_mach_info lart_kit01_info = {
80         .pixclock       = 63291,        .bpp            = 16,
81         .xres           = 640,          .yres           = 480,
82
83         .hsync_len      = 64,           .vsync_len      = 3,
84         .left_margin    = 122,          .upper_margin   = 45,
85         .right_margin   = 10,           .lower_margin   = 10,
86
87         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
88         .lccr3          = LCCR3_OutEnH | LCCR3_PixFlEdg
89 };
90 #endif
91
92 static void __init lart_init(void)
93 {
94         struct sa1100fb_mach_info *inf = NULL;
95
96 #ifdef LART_GREY_LCD
97         inf = &lart_grey_info;
98 #endif
99 #ifdef LART_COLOR_LCD
100         inf = &lart_color_info;
101 #endif
102 #ifdef LART_VIDEO_OUT
103         inf = &lart_video_info;
104 #endif
105 #ifdef LART_KIT01_LCD
106         inf = &lart_kit01_info;
107 #endif
108
109         if (inf)
110                 sa11x0_register_lcd(inf);
111
112         sa11x0_ppc_configure_mcp();
113         sa11x0_register_mcp(&lart_mcp_data);
114 }
115
116 static struct map_desc lart_io_desc[] __initdata = {
117         {       /* main flash memory */
118                 .virtual        =  0xe8000000,
119                 .pfn            = __phys_to_pfn(0x00000000),
120                 .length         = 0x00400000,
121                 .type           = MT_DEVICE
122         }, {    /* main flash, alternative location */
123                 .virtual        =  0xec000000,
124                 .pfn            = __phys_to_pfn(0x08000000),
125                 .length         = 0x00400000,
126                 .type           = MT_DEVICE
127         }
128 };
129
130 /* LEDs */
131 struct gpio_led lart_gpio_leds[] = {
132         {
133                 .name                   = "lart:red",
134                 .default_trigger        = "cpu0",
135                 .gpio                   = 23,
136         },
137 };
138
139 static struct gpio_led_platform_data lart_gpio_led_info = {
140         .leds           = lart_gpio_leds,
141         .num_leds       = ARRAY_SIZE(lart_gpio_leds),
142 };
143
144 static struct platform_device lart_leds = {
145         .name   = "leds-gpio",
146         .id     = -1,
147         .dev    = {
148                 .platform_data  = &lart_gpio_led_info,
149         }
150 };
151 static void __init lart_map_io(void)
152 {
153         sa1100_map_io();
154         iotable_init(lart_io_desc, ARRAY_SIZE(lart_io_desc));
155
156         sa1100_register_uart(0, 3);
157         sa1100_register_uart(1, 1);
158         sa1100_register_uart(2, 2);
159
160         GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
161         GPDR |= GPIO_UART_TXD;
162         GPDR &= ~GPIO_UART_RXD;
163         PPAR |= PPAR_UPR;
164
165         platform_device_register(&lart_leds);
166 }
167
168 MACHINE_START(LART, "LART")
169         .atag_offset    = 0x100,
170         .map_io         = lart_map_io,
171         .nr_irqs        = SA1100_NR_IRQS,
172         .init_irq       = sa1100_init_irq,
173         .init_machine   = lart_init,
174         .init_late      = sa11x0_init_late,
175         .init_time      = sa1100_timer_init,
176         .restart        = sa11x0_restart,
177 MACHINE_END