xref: /openbmc/qemu/include/hw/arm/exynos4210.h (revision efba1595)
1 /*
2  *  Samsung exynos4210 SoC emulation
3  *
4  *  Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved.
5  *    Maksim Kozlov <m.kozlov@samsung.com>
6  *    Evgeny Voevodin <e.voevodin@samsung.com>
7  *    Igor Mitsyanko <i.mitsyanko@samsung.com>
8  *
9  *
10  *  This program is free software; you can redistribute it and/or modify it
11  *  under the terms of the GNU General Public License as published by the
12  *  Free Software Foundation; either version 2 of the License, or
13  *  (at your option) any later version.
14  *
15  *  This program is distributed in the hope that it will be useful, but WITHOUT
16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17  *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18  *  for more details.
19  *
20  *  You should have received a copy of the GNU General Public License along
21  *  with this program; if not, see <http://www.gnu.org/licenses/>.
22  */
23 
24 #ifndef EXYNOS4210_H
25 #define EXYNOS4210_H
26 
27 #include "hw/or-irq.h"
28 #include "hw/sysbus.h"
29 #include "target/arm/cpu-qom.h"
30 #include "qom/object.h"
31 
32 #define EXYNOS4210_NCPUS                    2
33 
34 #define EXYNOS4210_DRAM0_BASE_ADDR          0x40000000
35 #define EXYNOS4210_DRAM1_BASE_ADDR          0xa0000000
36 #define EXYNOS4210_DRAM_MAX_SIZE            0x60000000  /* 1.5 GB */
37 
38 #define EXYNOS4210_IROM_BASE_ADDR           0x00000000
39 #define EXYNOS4210_IROM_SIZE                0x00010000  /* 64 KB */
40 #define EXYNOS4210_IROM_MIRROR_BASE_ADDR    0x02000000
41 #define EXYNOS4210_IROM_MIRROR_SIZE         0x00010000  /* 64 KB */
42 
43 #define EXYNOS4210_IRAM_BASE_ADDR           0x02020000
44 #define EXYNOS4210_IRAM_SIZE                0x00020000  /* 128 KB */
45 
46 /* Secondary CPU startup code is in IROM memory */
47 #define EXYNOS4210_SMP_BOOT_ADDR            EXYNOS4210_IROM_BASE_ADDR
48 #define EXYNOS4210_SMP_BOOT_SIZE            0x1000
49 #define EXYNOS4210_BASE_BOOT_ADDR           EXYNOS4210_DRAM0_BASE_ADDR
50 /* Secondary CPU polling address to get loader start from */
51 #define EXYNOS4210_SECOND_CPU_BOOTREG       0x10020814
52 
53 #define EXYNOS4210_SMP_PRIVATE_BASE_ADDR    0x10500000
54 #define EXYNOS4210_L2X0_BASE_ADDR           0x10502000
55 
56 /*
57  * exynos4210 IRQ subsystem stub definitions.
58  */
59 #define EXYNOS4210_IRQ_GATE_NINPUTS 2 /* Internal and External GIC */
60 
61 #define EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ  64
62 #define EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ  16
63 #define EXYNOS4210_MAX_INT_COMBINER_IN_IRQ   \
64     (EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ * 8)
65 #define EXYNOS4210_MAX_EXT_COMBINER_IN_IRQ   \
66     (EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ * 8)
67 
68 #define EXYNOS4210_COMBINER_GET_IRQ_NUM(grp, bit)  ((grp)*8 + (bit))
69 #define EXYNOS4210_COMBINER_GET_GRP_NUM(irq)       ((irq) / 8)
70 #define EXYNOS4210_COMBINER_GET_BIT_NUM(irq) \
71     ((irq) - 8 * EXYNOS4210_COMBINER_GET_GRP_NUM(irq))
72 
73 /* IRQs number for external and internal GIC */
74 #define EXYNOS4210_EXT_GIC_NIRQ     (160-32)
75 #define EXYNOS4210_INT_GIC_NIRQ     64
76 
77 #define EXYNOS4210_I2C_NUMBER               9
78 
79 #define EXYNOS4210_NUM_DMA      3
80 
81 typedef struct Exynos4210Irq {
82     qemu_irq int_combiner_irq[EXYNOS4210_MAX_INT_COMBINER_IN_IRQ];
83     qemu_irq ext_combiner_irq[EXYNOS4210_MAX_EXT_COMBINER_IN_IRQ];
84     qemu_irq int_gic_irq[EXYNOS4210_INT_GIC_NIRQ];
85     qemu_irq ext_gic_irq[EXYNOS4210_EXT_GIC_NIRQ];
86     qemu_irq board_irqs[EXYNOS4210_MAX_INT_COMBINER_IN_IRQ];
87 } Exynos4210Irq;
88 
89 struct Exynos4210State {
90     /*< private >*/
91     SysBusDevice parent_obj;
92     /*< public >*/
93     ARMCPU *cpu[EXYNOS4210_NCPUS];
94     Exynos4210Irq irqs;
95     qemu_irq *irq_table;
96 
97     MemoryRegion chipid_mem;
98     MemoryRegion iram_mem;
99     MemoryRegion irom_mem;
100     MemoryRegion irom_alias_mem;
101     MemoryRegion boot_secondary;
102     MemoryRegion bootreg_mem;
103     I2CBus *i2c_if[EXYNOS4210_I2C_NUMBER];
104     qemu_or_irq pl330_irq_orgate[EXYNOS4210_NUM_DMA];
105 };
106 
107 #define TYPE_EXYNOS4210_SOC "exynos4210"
108 OBJECT_DECLARE_SIMPLE_TYPE(Exynos4210State, EXYNOS4210_SOC)
109 
110 void exynos4210_write_secondary(ARMCPU *cpu,
111         const struct arm_boot_info *info);
112 
113 /* Initialize exynos4210 IRQ subsystem stub */
114 qemu_irq *exynos4210_init_irq(Exynos4210Irq *env);
115 
116 /* Initialize board IRQs.
117  * These IRQs contain splitted Int/External Combiner and External Gic IRQs */
118 void exynos4210_init_board_irqs(Exynos4210Irq *s);
119 
120 /* Get IRQ number from exynos4210 IRQ subsystem stub.
121  * To identify IRQ source use internal combiner group and bit number
122  *  grp - group number
123  *  bit - bit number inside group */
124 uint32_t exynos4210_get_irq(uint32_t grp, uint32_t bit);
125 
126 /*
127  * Get Combiner input GPIO into irqs structure
128  */
129 void exynos4210_combiner_get_gpioin(Exynos4210Irq *irqs, DeviceState *dev,
130         int ext);
131 
132 /*
133  * exynos4210 UART
134  */
135 DeviceState *exynos4210_uart_create(hwaddr addr,
136                                     int fifo_size,
137                                     int channel,
138                                     Chardev *chr,
139                                     qemu_irq irq);
140 
141 #endif /* EXYNOS4210_H */
142