1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-mmp/flint.c
4 *
5 * Support for the Marvell Flint Development Platform.
6 *
7 * Copyright (C) 2009 Marvell International Ltd.
8 */
9
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/platform_device.h>
13 #include <linux/smc91x.h>
14 #include <linux/io.h>
15 #include <linux/gpio.h>
16 #include <linux/gpio-pxa.h>
17 #include <linux/interrupt.h>
18
19 #include <asm/mach-types.h>
20 #include <asm/mach/arch.h>
21 #include "addr-map.h"
22 #include "mfp-mmp2.h"
23 #include "mmp2.h"
24 #include "irqs.h"
25
26 #include "common.h"
27
28 #define FLINT_NR_IRQS (MMP_NR_IRQS + 48)
29
30 static unsigned long flint_pin_config[] __initdata = {
31 /* UART1 */
32 GPIO45_UART1_RXD,
33 GPIO46_UART1_TXD,
34
35 /* UART2 */
36 GPIO47_UART2_RXD,
37 GPIO48_UART2_TXD,
38
39 /* SMC */
40 GPIO151_SMC_SCLK,
41 GPIO145_SMC_nCS0,
42 GPIO146_SMC_nCS1,
43 GPIO152_SMC_BE0,
44 GPIO153_SMC_BE1,
45 GPIO154_SMC_IRQ,
46 GPIO113_SMC_RDY,
47
48 /*Ethernet*/
49 GPIO155_GPIO,
50
51 /* DFI */
52 GPIO168_DFI_D0,
53 GPIO167_DFI_D1,
54 GPIO166_DFI_D2,
55 GPIO165_DFI_D3,
56 GPIO107_DFI_D4,
57 GPIO106_DFI_D5,
58 GPIO105_DFI_D6,
59 GPIO104_DFI_D7,
60 GPIO111_DFI_D8,
61 GPIO164_DFI_D9,
62 GPIO163_DFI_D10,
63 GPIO162_DFI_D11,
64 GPIO161_DFI_D12,
65 GPIO110_DFI_D13,
66 GPIO109_DFI_D14,
67 GPIO108_DFI_D15,
68 GPIO143_ND_nCS0,
69 GPIO144_ND_nCS1,
70 GPIO147_ND_nWE,
71 GPIO148_ND_nRE,
72 GPIO150_ND_ALE,
73 GPIO149_ND_CLE,
74 GPIO112_ND_RDY0,
75 GPIO160_ND_RDY1,
76 };
77
78 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
79 .irq_base = MMP_GPIO_TO_IRQ(0),
80 };
81
82 static struct smc91x_platdata flint_smc91x_info = {
83 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
84 };
85
86 static struct resource smc91x_resources[] = {
87 [0] = {
88 .start = SMC_CS1_PHYS_BASE + 0x300,
89 .end = SMC_CS1_PHYS_BASE + 0xfffff,
90 .flags = IORESOURCE_MEM,
91 },
92 [1] = {
93 .start = MMP_GPIO_TO_IRQ(155),
94 .end = MMP_GPIO_TO_IRQ(155),
95 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
96 }
97 };
98
99 static struct platform_device smc91x_device = {
100 .name = "smc91x",
101 .id = 0,
102 .dev = {
103 .platform_data = &flint_smc91x_info,
104 },
105 .num_resources = ARRAY_SIZE(smc91x_resources),
106 .resource = smc91x_resources,
107 };
108
flint_init(void)109 static void __init flint_init(void)
110 {
111 mfp_config(ARRAY_AND_SIZE(flint_pin_config));
112
113 /* on-chip devices */
114 mmp2_add_uart(1);
115 mmp2_add_uart(2);
116 platform_device_add_data(&mmp2_device_gpio, &mmp2_gpio_pdata,
117 sizeof(struct pxa_gpio_platform_data));
118 platform_device_register(&mmp2_device_gpio);
119
120 /* off-chip devices */
121 platform_device_register(&smc91x_device);
122 }
123
124 MACHINE_START(FLINT, "Flint Development Platform")
125 .map_io = mmp_map_io,
126 .nr_irqs = FLINT_NR_IRQS,
127 .init_irq = mmp2_init_irq,
128 .init_time = mmp2_timer_init,
129 .init_machine = flint_init,
130 .restart = mmp_restart,
131 MACHINE_END
132