2 * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com
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.
12 #include <linux/of_platform.h>
13 #include <linux/of_fdt.h>
14 #include <linux/serial_core.h>
15 #include <linux/memblock.h>
18 #include <asm/mach/arch.h>
20 #include <mach/regs-pmu.h>
23 #include <plat/regs-serial.h>
29 * The following lookup table is used to override device names when devices
30 * are registered from device tree. This is temporarily added to enable
31 * device tree support addition for the EXYNOS5 architecture.
33 * For drivers that require platform data to be provided from the machine
34 * file, a platform data pointer can also be supplied along with the
35 * devices names. Usually, the platform data elements that cannot be parsed
36 * from the device tree by the drivers (example: function pointers) are
37 * supplied. But it should be noted that this is a temporary mechanism and
38 * at some point, the drivers should be capable of parsing all the platform
39 * data from the device tree.
41 static const struct of_dev_auxdata exynos5250_auxdata_lookup
[] __initconst
= {
42 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART0
,
43 "exynos4210-uart.0", NULL
),
44 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART1
,
45 "exynos4210-uart.1", NULL
),
46 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART2
,
47 "exynos4210-uart.2", NULL
),
48 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART3
,
49 "exynos4210-uart.3", NULL
),
50 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(0),
51 "s3c2440-i2c.0", NULL
),
52 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(1),
53 "s3c2440-i2c.1", NULL
),
54 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(2),
55 "s3c2440-i2c.2", NULL
),
56 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(3),
57 "s3c2440-i2c.3", NULL
),
58 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(4),
59 "s3c2440-i2c.4", NULL
),
60 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(5),
61 "s3c2440-i2c.5", NULL
),
62 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(6),
63 "s3c2440-i2c.6", NULL
),
64 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(7),
65 "s3c2440-i2c.7", NULL
),
66 OF_DEV_AUXDATA("samsung,s3c2440-hdmiphy-i2c", EXYNOS5_PA_IIC(8),
67 "s3c2440-hdmiphy-i2c", NULL
),
68 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI0
,
70 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI1
,
72 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI2
,
74 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI3
,
76 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI0
,
77 "exynos4210-spi.0", NULL
),
78 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI1
,
79 "exynos4210-spi.1", NULL
),
80 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI2
,
81 "exynos4210-spi.2", NULL
),
82 OF_DEV_AUXDATA("samsung,exynos5-sata-ahci", 0x122F0000,
83 "exynos5-sata", NULL
),
84 OF_DEV_AUXDATA("samsung,exynos5-sata-phy", 0x12170000,
85 "exynos5-sata-phy", NULL
),
86 OF_DEV_AUXDATA("samsung,exynos5-sata-phy-i2c", 0x121D0000,
87 "exynos5-sata-phy-i2c", NULL
),
88 OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0
, "dma-pl330.0", NULL
),
89 OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1
, "dma-pl330.1", NULL
),
90 OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1
, "dma-pl330.2", NULL
),
91 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC0
,
92 "exynos-gsc.0", NULL
),
93 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC1
,
94 "exynos-gsc.1", NULL
),
95 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC2
,
96 "exynos-gsc.2", NULL
),
97 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3
,
98 "exynos-gsc.3", NULL
),
99 OF_DEV_AUXDATA("samsung,exynos5-hdmi", 0x14530000,
100 "exynos5-hdmi", NULL
),
101 OF_DEV_AUXDATA("samsung,exynos5-mixer", 0x14450000,
102 "exynos5-mixer", NULL
),
103 OF_DEV_AUXDATA("samsung,mfc-v6", 0x11000000, "s5p-mfc-v6", NULL
),
104 OF_DEV_AUXDATA("samsung,exynos5250-tmu", 0x10060000,
106 OF_DEV_AUXDATA("samsung,i2s-v5", 0x03830000,
107 "samsung-i2s.0", NULL
),
108 OF_DEV_AUXDATA("samsung,i2s-v5", 0x12D60000,
109 "samsung-i2s.1", NULL
),
110 OF_DEV_AUXDATA("samsung,i2s-v5", 0x12D70000,
111 "samsung-i2s.2", NULL
),
112 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11210000,
113 "exynos-sysmmu.0", "mfc"), /* MFC_L */
114 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11200000,
115 "exynos-sysmmu.1", "mfc"), /* MFC_R */
116 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14650000,
117 "exynos-sysmmu.2", NULL
), /* TV */
118 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11F20000,
119 "exynos-sysmmu.3", "jpeg"), /* JPEG */
120 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11D40000,
121 "exynos-sysmmu.4", NULL
), /* ROTATOR */
122 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E80000,
123 "exynos-sysmmu.5", "gscl"), /* GSCL0 */
124 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E90000,
125 "exynos-sysmmu.6", "gscl"), /* GSCL1 */
126 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EA0000,
127 "exynos-sysmmu.7", "gscl"), /* GSCL2 */
128 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EB0000,
129 "exynos-sysmmu.8", "gscl"), /* GSCL3 */
130 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13260000,
131 "exynos-sysmmu.9", NULL
), /* FIMC-IS0 */
132 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x132C0000,
133 "exynos-sysmmu.10", NULL
), /* FIMC-IS1 */
134 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14640000,
135 "exynos-sysmmu.11", NULL
), /* FIMD1 */
136 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C40000,
137 "exynos-sysmmu.12", NULL
), /* FIMC-LITE0 */
138 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C50000,
139 "exynos-sysmmu.13", NULL
), /* FIMC-LITE1 */
140 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x10A60000,
141 "exynos-sysmmu.14", NULL
), /* G2D */
145 static const struct of_dev_auxdata exynos5440_auxdata_lookup
[] __initconst
= {
146 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5440_PA_UART0
,
147 "exynos4210-uart.0", NULL
),
151 static void __init
exynos5_dt_map_io(void)
153 unsigned long root
= of_get_flat_dt_root();
155 exynos_init_io(NULL
, 0);
157 if (of_flat_dt_is_compatible(root
, "samsung,exynos5250"))
158 s3c24xx_init_clocks(24000000);
161 static void __init
exynos5_dt_machine_init(void)
163 struct device_node
*i2c_np
;
164 const char *i2c_compat
= "samsung,s3c2440-i2c";
168 * Exynos5's legacy i2c controller and new high speed i2c
169 * controller have muxed interrupt sources. By default the
170 * interrupts for 4-channel HS-I2C controller are enabled.
171 * If node for first four channels of legacy i2c controller
172 * are available then re-configure the interrupts via the
175 for_each_compatible_node(i2c_np
, NULL
, i2c_compat
) {
176 if (of_device_is_available(i2c_np
)) {
177 if (of_alias_get_id(i2c_np
, "i2c") < 4) {
178 tmp
= readl(EXYNOS5_SYS_I2C_CFG
);
179 writel(tmp
& ~(0x1 << of_alias_get_id(i2c_np
, "i2c")),
180 EXYNOS5_SYS_I2C_CFG
);
185 if (of_machine_is_compatible("samsung,exynos5250"))
186 of_platform_populate(NULL
, of_default_bus_match_table
,
187 exynos5250_auxdata_lookup
, NULL
);
188 else if (of_machine_is_compatible("samsung,exynos5440"))
189 of_platform_populate(NULL
, of_default_bus_match_table
,
190 exynos5440_auxdata_lookup
, NULL
);
193 static char const *exynos5_dt_compat
[] __initdata
= {
194 "samsung,exynos5250",
195 "samsung,exynos5440",
199 static void __init
exynos5_reserve(void)
201 #ifdef CONFIG_S5P_DEV_MFC
202 struct s5p_mfc_dt_meminfo mfc_mem
;
204 /* Reserve memory for MFC only if it's available */
205 mfc_mem
.compatible
= "samsung,mfc-v6";
206 if (of_scan_flat_dt(s5p_fdt_find_mfc_mem
, &mfc_mem
))
207 s5p_mfc_reserve_mem(mfc_mem
.roff
, mfc_mem
.rsize
, mfc_mem
.loff
,
212 DT_MACHINE_START(EXYNOS5_DT
, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
213 /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
214 .init_irq
= exynos5_init_irq
,
215 .smp
= smp_ops(exynos_smp_ops
),
216 .map_io
= exynos5_dt_map_io
,
217 .init_machine
= exynos5_dt_machine_init
,
218 .init_late
= exynos_init_late
,
219 .init_time
= exynos4_timer_init
,
220 .dt_compat
= exynos5_dt_compat
,
221 .restart
= exynos5_restart
,
222 .reserve
= exynos5_reserve
,