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>
17 #include <linux/clocksource.h>
19 #include <asm/mach/arch.h>
21 #include <mach/regs-pmu.h>
24 #include <plat/regs-serial.h>
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.
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.
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
),
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
),
55 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(2),
56 "s3c2440-i2c.2", NULL
),
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
),
67 OF_DEV_AUXDATA("samsung,s3c2440-hdmiphy-i2c", EXYNOS5_PA_IIC(8),
68 "s3c2440-hdmiphy-i2c", NULL
),
69 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI0
,
71 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI1
,
73 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI2
,
75 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI3
,
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
),
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
),
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
),
91 OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1
, "dma-pl330.2", NULL
),
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
),
100 OF_DEV_AUXDATA("samsung,exynos5-hdmi", 0x14530000,
101 "exynos5-hdmi", NULL
),
102 OF_DEV_AUXDATA("samsung,exynos5-mixer", 0x14450000,
103 "exynos5-mixer", NULL
),
104 OF_DEV_AUXDATA("samsung,mfc-v6", 0x11000000, "s5p-mfc-v6", NULL
),
105 OF_DEV_AUXDATA("samsung,exynos5250-tmu", 0x10060000,
107 OF_DEV_AUXDATA("samsung,i2s-v5", 0x03830000,
108 "samsung-i2s.0", NULL
),
109 OF_DEV_AUXDATA("samsung,i2s-v5", 0x12D60000,
110 "samsung-i2s.1", NULL
),
111 OF_DEV_AUXDATA("samsung,i2s-v5", 0x12D70000,
112 "samsung-i2s.2", NULL
),
113 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11210000,
114 "exynos-sysmmu.0", "mfc"), /* MFC_L */
115 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11200000,
116 "exynos-sysmmu.1", "mfc"), /* MFC_R */
117 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14650000,
118 "exynos-sysmmu.2", NULL
), /* TV */
119 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11F20000,
120 "exynos-sysmmu.3", "jpeg"), /* JPEG */
121 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11D40000,
122 "exynos-sysmmu.4", NULL
), /* ROTATOR */
123 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E80000,
124 "exynos-sysmmu.5", "gscl"), /* GSCL0 */
125 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E90000,
126 "exynos-sysmmu.6", "gscl"), /* GSCL1 */
127 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EA0000,
128 "exynos-sysmmu.7", "gscl"), /* GSCL2 */
129 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EB0000,
130 "exynos-sysmmu.8", "gscl"), /* GSCL3 */
131 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13260000,
132 "exynos-sysmmu.9", NULL
), /* FIMC-IS0 */
133 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x132C0000,
134 "exynos-sysmmu.10", NULL
), /* FIMC-IS1 */
135 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14640000,
136 "exynos-sysmmu.11", NULL
), /* FIMD1 */
137 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C40000,
138 "exynos-sysmmu.12", NULL
), /* FIMC-LITE0 */
139 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C50000,
140 "exynos-sysmmu.13", NULL
), /* FIMC-LITE1 */
141 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x10A60000,
142 "exynos-sysmmu.14", NULL
), /* G2D */
146 static const struct of_dev_auxdata exynos5440_auxdata_lookup
[] __initconst
= {
147 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5440_PA_UART0
,
148 "exynos4210-uart.0", NULL
),
152 static void __init
exynos5_dt_map_io(void)
154 unsigned long root
= of_get_flat_dt_root();
156 exynos_init_io(NULL
, 0);
158 if (of_flat_dt_is_compatible(root
, "samsung,exynos5250"))
159 s3c24xx_init_clocks(24000000);
162 static void __init
exynos5_dt_machine_init(void)
164 struct device_node
*i2c_np
;
165 const char *i2c_compat
= "samsung,s3c2440-i2c";
169 * Exynos5's legacy i2c controller and new high speed i2c
170 * controller have muxed interrupt sources. By default the
171 * interrupts for 4-channel HS-I2C controller are enabled.
172 * If node for first four channels of legacy i2c controller
173 * are available then re-configure the interrupts via the
176 for_each_compatible_node(i2c_np
, NULL
, i2c_compat
) {
177 if (of_device_is_available(i2c_np
)) {
178 if (of_alias_get_id(i2c_np
, "i2c") < 4) {
179 tmp
= readl(EXYNOS5_SYS_I2C_CFG
);
180 writel(tmp
& ~(0x1 << of_alias_get_id(i2c_np
, "i2c")),
181 EXYNOS5_SYS_I2C_CFG
);
186 if (of_machine_is_compatible("samsung,exynos5250"))
187 of_platform_populate(NULL
, of_default_bus_match_table
,
188 exynos5250_auxdata_lookup
, NULL
);
189 else if (of_machine_is_compatible("samsung,exynos5440"))
190 of_platform_populate(NULL
, of_default_bus_match_table
,
191 exynos5440_auxdata_lookup
, NULL
);
194 static char const *exynos5_dt_compat
[] __initdata
= {
195 "samsung,exynos5250",
196 "samsung,exynos5440",
200 static void __init
exynos5_reserve(void)
202 #ifdef CONFIG_S5P_DEV_MFC
203 struct s5p_mfc_dt_meminfo mfc_mem
;
205 /* Reserve memory for MFC only if it's available */
206 mfc_mem
.compatible
= "samsung,mfc-v6";
207 if (of_scan_flat_dt(s5p_fdt_find_mfc_mem
, &mfc_mem
))
208 s5p_mfc_reserve_mem(mfc_mem
.roff
, mfc_mem
.rsize
, mfc_mem
.loff
,
213 DT_MACHINE_START(EXYNOS5_DT
, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
214 /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
215 .init_irq
= exynos5_init_irq
,
216 .smp
= smp_ops(exynos_smp_ops
),
217 .map_io
= exynos5_dt_map_io
,
218 .init_machine
= exynos5_dt_machine_init
,
219 .init_late
= exynos_init_late
,
220 .dt_compat
= exynos5_dt_compat
,
221 .restart
= exynos5_restart
,
222 .reserve
= exynos5_reserve
,