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
32static 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
50static 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
56static struct resource shannon_flash_resource =
57	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);
58
59static struct mcp_plat_data shannon_mcp_data = {
60	.mccr0		= MCCR0_ADM,
61	.sclk_rate	= 11981000,
62};
63
64static 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
78static 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
87static 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
96static struct regulator_consumer_supply shannon_cf_vcc_consumers[] = {
97	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.0"),
98	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
99};
100
101static struct fixed_voltage_config shannon_cf_vcc_pdata __initdata = {
102	.supply_name = "cf-power",
103	.microvolts = 3300000,
104	.enabled_at_boot = 1,
105};
106
107static struct gpiod_lookup_table shannon_display_gpio_table = {
108	.dev_id = "sa11x0-fb",
109	.table = {
110		GPIO_LOOKUP("gpio", 22, "shannon-lcden", GPIO_ACTIVE_HIGH),
111		{ },
112	},
113};
114
115static void __init shannon_init(void)
116{
117	sa11x0_register_fixed_regulator(0, &shannon_cf_vcc_pdata,
118					shannon_cf_vcc_consumers,
119					ARRAY_SIZE(shannon_cf_vcc_consumers),
120					false);
121	sa11x0_register_pcmcia(0, &shannon_pcmcia0_gpio_table);
122	sa11x0_register_pcmcia(1, &shannon_pcmcia1_gpio_table);
123	sa11x0_ppc_configure_mcp();
124	gpiod_add_lookup_table(&shannon_display_gpio_table);
125	sa11x0_register_lcd(&shannon_lcd_info);
126	sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
127	sa11x0_register_mcp(&shannon_mcp_data);
128}
129
130static void __init shannon_map_io(void)
131{
132	sa1100_map_io();
133
134	sa1100_register_uart(0, 3);
135	sa1100_register_uart(1, 1);
136
137	Ser1SDCR0 |= SDCR0_SUS;
138	GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
139	GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
140	GPDR &= ~GPIO_UART_RXD;
141	PPAR |= PPAR_UPR;
142
143	/* reset the codec */
144	GPCR = SHANNON_GPIO_CODEC_RESET;
145	GPSR = SHANNON_GPIO_CODEC_RESET;
146}
147
148MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
149	.atag_offset	= 0x100,
150	.map_io		= shannon_map_io,
151	.nr_irqs	= SA1100_NR_IRQS,
152	.init_irq	= sa1100_init_irq,
153	.init_time	= sa1100_timer_init,
154	.init_machine	= shannon_init,
155	.init_late	= sa11x0_init_late,
156	.restart	= sa11x0_restart,
157MACHINE_END
158