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b3e68fb1 KK |
1 | /* |
2 | * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine | |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/of_platform.h> | |
5b7897db | 13 | #include <linux/of_fdt.h> |
b3e68fb1 | 14 | #include <linux/serial_core.h> |
2eae613b | 15 | #include <linux/memblock.h> |
7000fe8c | 16 | #include <linux/io.h> |
b3e68fb1 KK |
17 | |
18 | #include <asm/mach/arch.h> | |
19 | #include <asm/hardware/gic.h> | |
20 | #include <mach/map.h> | |
7000fe8c | 21 | #include <mach/regs-pmu.h> |
b3e68fb1 KK |
22 | |
23 | #include <plat/cpu.h> | |
24 | #include <plat/regs-serial.h> | |
2eae613b | 25 | #include <plat/mfc.h> |
b3e68fb1 KK |
26 | |
27 | #include "common.h" | |
28 | ||
29 | /* | |
30 | * The following lookup table is used to override device names when devices | |
31 | * are registered from device tree. This is temporarily added to enable | |
32 | * device tree support addition for the EXYNOS5 architecture. | |
33 | * | |
34 | * For drivers that require platform data to be provided from the machine | |
35 | * file, a platform data pointer can also be supplied along with the | |
36 | * devices names. Usually, the platform data elements that cannot be parsed | |
37 | * from the device tree by the drivers (example: function pointers) are | |
38 | * supplied. But it should be noted that this is a temporary mechanism and | |
39 | * at some point, the drivers should be capable of parsing all the platform | |
40 | * data from the device tree. | |
41 | */ | |
42 | static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = { | |
43 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART0, | |
44 | "exynos4210-uart.0", NULL), | |
45 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART1, | |
46 | "exynos4210-uart.1", NULL), | |
47 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART2, | |
48 | "exynos4210-uart.2", NULL), | |
49 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART3, | |
50 | "exynos4210-uart.3", NULL), | |
380c3a54 TA |
51 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(0), |
52 | "s3c2440-i2c.0", NULL), | |
53 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(1), | |
54 | "s3c2440-i2c.1", NULL), | |
62a1f83f RS |
55 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(2), |
56 | "s3c2440-i2c.2", NULL), | |
f5298e07 OJ |
57 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(3), |
58 | "s3c2440-i2c.3", NULL), | |
59 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(4), | |
60 | "s3c2440-i2c.4", NULL), | |
61 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(5), | |
62 | "s3c2440-i2c.5", NULL), | |
63 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(6), | |
64 | "s3c2440-i2c.6", NULL), | |
65 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(7), | |
66 | "s3c2440-i2c.7", NULL), | |
3e3e9ce4 RS |
67 | OF_DEV_AUXDATA("samsung,s3c2440-hdmiphy-i2c", EXYNOS5_PA_IIC(8), |
68 | "s3c2440-hdmiphy-i2c", NULL), | |
a5c17773 TA |
69 | OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI0, |
70 | "dw_mmc.0", NULL), | |
71 | OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI1, | |
72 | "dw_mmc.1", NULL), | |
73 | OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI2, | |
74 | "dw_mmc.2", NULL), | |
75 | OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI3, | |
76 | "dw_mmc.3", NULL), | |
b0b27815 TA |
77 | OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI0, |
78 | "exynos4210-spi.0", NULL), | |
79 | OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI1, | |
80 | "exynos4210-spi.1", NULL), | |
81 | OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI2, | |
82 | "exynos4210-spi.2", NULL), | |
c47d244a VA |
83 | OF_DEV_AUXDATA("samsung,exynos5-sata-ahci", 0x122F0000, |
84 | "exynos5-sata", NULL), | |
85 | OF_DEV_AUXDATA("samsung,exynos5-sata-phy", 0x12170000, | |
86 | "exynos5-sata-phy", NULL), | |
87 | OF_DEV_AUXDATA("samsung,exynos5-sata-phy-i2c", 0x121D0000, | |
88 | "exynos5-sata-phy-i2c", NULL), | |
b3e68fb1 KK |
89 | OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL), |
90 | OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL), | |
60806225 | 91 | OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL), |
1128658a SAB |
92 | OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC0, |
93 | "exynos-gsc.0", NULL), | |
94 | OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC1, | |
95 | "exynos-gsc.1", NULL), | |
96 | OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC2, | |
97 | "exynos-gsc.2", NULL), | |
98 | OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3, | |
99 | "exynos-gsc.3", NULL), | |
566cf8ee RS |
100 | OF_DEV_AUXDATA("samsung,exynos5-hdmi", 0x14530000, |
101 | "exynos5-hdmi", NULL), | |
5af0d8a3 RS |
102 | OF_DEV_AUXDATA("samsung,exynos5-mixer", 0x14450000, |
103 | "exynos5-mixer", NULL), | |
2eae613b | 104 | OF_DEV_AUXDATA("samsung,mfc-v6", 0x11000000, "s5p-mfc-v6", NULL), |
ef405e04 ADK |
105 | OF_DEV_AUXDATA("samsung,exynos5250-tmu", 0x10060000, |
106 | "exynos-tmu", NULL), | |
b3e68fb1 KK |
107 | {}, |
108 | }; | |
109 | ||
2edb36c4 KK |
110 | static const struct of_dev_auxdata exynos5440_auxdata_lookup[] __initconst = { |
111 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5440_PA_UART0, | |
112 | "exynos4210-uart.0", NULL), | |
113 | {}, | |
114 | }; | |
115 | ||
116 | static void __init exynos5_dt_map_io(void) | |
b3e68fb1 | 117 | { |
5b7897db DA |
118 | unsigned long root = of_get_flat_dt_root(); |
119 | ||
b3e68fb1 | 120 | exynos_init_io(NULL, 0); |
2edb36c4 | 121 | |
5b7897db | 122 | if (of_flat_dt_is_compatible(root, "samsung,exynos5250")) |
2edb36c4 | 123 | s3c24xx_init_clocks(24000000); |
b3e68fb1 KK |
124 | } |
125 | ||
2edb36c4 | 126 | static void __init exynos5_dt_machine_init(void) |
b3e68fb1 | 127 | { |
7000fe8c AK |
128 | struct device_node *i2c_np; |
129 | const char *i2c_compat = "samsung,s3c2440-i2c"; | |
130 | unsigned int tmp; | |
131 | ||
132 | /* | |
133 | * Exynos5's legacy i2c controller and new high speed i2c | |
134 | * controller have muxed interrupt sources. By default the | |
135 | * interrupts for 4-channel HS-I2C controller are enabled. | |
136 | * If node for first four channels of legacy i2c controller | |
137 | * are available then re-configure the interrupts via the | |
138 | * system register. | |
139 | */ | |
140 | for_each_compatible_node(i2c_np, NULL, i2c_compat) { | |
141 | if (of_device_is_available(i2c_np)) { | |
142 | if (of_alias_get_id(i2c_np, "i2c") < 4) { | |
143 | tmp = readl(EXYNOS5_SYS_I2C_CFG); | |
144 | writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")), | |
145 | EXYNOS5_SYS_I2C_CFG); | |
146 | } | |
147 | } | |
148 | } | |
149 | ||
2edb36c4 KK |
150 | if (of_machine_is_compatible("samsung,exynos5250")) |
151 | of_platform_populate(NULL, of_default_bus_match_table, | |
152 | exynos5250_auxdata_lookup, NULL); | |
153 | else if (of_machine_is_compatible("samsung,exynos5440")) | |
154 | of_platform_populate(NULL, of_default_bus_match_table, | |
155 | exynos5440_auxdata_lookup, NULL); | |
b3e68fb1 KK |
156 | } |
157 | ||
2edb36c4 | 158 | static char const *exynos5_dt_compat[] __initdata = { |
b3e68fb1 | 159 | "samsung,exynos5250", |
2edb36c4 | 160 | "samsung,exynos5440", |
b3e68fb1 KK |
161 | NULL |
162 | }; | |
163 | ||
2eae613b AK |
164 | static void __init exynos5_reserve(void) |
165 | { | |
ade7ffbb | 166 | #ifdef CONFIG_S5P_DEV_MFC |
2eae613b AK |
167 | struct s5p_mfc_dt_meminfo mfc_mem; |
168 | ||
169 | /* Reserve memory for MFC only if it's available */ | |
170 | mfc_mem.compatible = "samsung,mfc-v6"; | |
171 | if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) | |
172 | s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, | |
173 | mfc_mem.lsize); | |
ade7ffbb | 174 | #endif |
2eae613b AK |
175 | } |
176 | ||
b3e68fb1 KK |
177 | DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)") |
178 | /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ | |
179 | .init_irq = exynos5_init_irq, | |
06853ae4 | 180 | .smp = smp_ops(exynos_smp_ops), |
2edb36c4 | 181 | .map_io = exynos5_dt_map_io, |
b3e68fb1 | 182 | .handle_irq = gic_handle_irq, |
2edb36c4 | 183 | .init_machine = exynos5_dt_machine_init, |
bb13fabc | 184 | .init_late = exynos_init_late, |
6bb27d73 | 185 | .init_time = exynos4_timer_init, |
2edb36c4 | 186 | .dt_compat = exynos5_dt_compat, |
b3e68fb1 | 187 | .restart = exynos5_restart, |
2eae613b | 188 | .reserve = exynos5_reserve, |
b3e68fb1 | 189 | MACHINE_END |