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Restrict CP0_PerfCnt to legal values.
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1/*
2 * PalmOne's (TM) PDAs.
3 *
4 * Copyright (C) 2006-2007 Andrzej Zaborowski <balrog@zabor.org>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of
9 * the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19 * MA 02111-1307 USA
20 */
21#include "vl.h"
22
23static uint32_t static_readb(void *opaque, target_phys_addr_t offset)
24{
25 uint32_t *val = (uint32_t *) opaque;
26 return *val >> ((offset & 3) << 3);
27}
28
29static uint32_t static_readh(void *opaque, target_phys_addr_t offset) {
30 uint32_t *val = (uint32_t *) opaque;
31 return *val >> ((offset & 1) << 3);
32}
33
34static uint32_t static_readw(void *opaque, target_phys_addr_t offset) {
35 uint32_t *val = (uint32_t *) opaque;
36 return *val >> ((offset & 0) << 3);
37}
38
39static void static_write(void *opaque, target_phys_addr_t offset,
40 uint32_t value) {
41#ifdef SPY
42 printf("%s: value %08lx written at " PA_FMT "\n",
43 __FUNCTION__, value, offset);
44#endif
45}
46
47static CPUReadMemoryFunc *static_readfn[] = {
48 static_readb,
49 static_readh,
50 static_readw,
51};
52
53static CPUWriteMemoryFunc *static_writefn[] = {
54 static_write,
55 static_write,
56 static_write,
57};
58
59/* Palm Tunsgten|E support */
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60
61/* Shared GPIOs */
62#define PALMTE_USBDETECT_GPIO 0
63#define PALMTE_USB_OR_DC_GPIO 1
64#define PALMTE_TSC_GPIO 4
65#define PALMTE_PINTDAV_GPIO 6
66#define PALMTE_MMC_WP_GPIO 8
67#define PALMTE_MMC_POWER_GPIO 9
68#define PALMTE_HDQ_GPIO 11
69#define PALMTE_HEADPHONES_GPIO 14
70#define PALMTE_SPEAKER_GPIO 15
71/* MPU private GPIOs */
72#define PALMTE_DC_GPIO 2
73#define PALMTE_MMC_SWITCH_GPIO 4
74#define PALMTE_MMC1_GPIO 6
75#define PALMTE_MMC2_GPIO 7
76#define PALMTE_MMC3_GPIO 11
77
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78static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
79{
80}
81
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82static struct {
83 int row;
84 int column;
85} palmte_keymap[0x80] = {
86 [0 ... 0x7f] = { -1, -1 },
87 [0x3b] = { 0, 0 }, /* F1 -> Calendar */
88 [0x3c] = { 1, 0 }, /* F2 -> Contacts */
89 [0x3d] = { 2, 0 }, /* F3 -> Tasks List */
90 [0x3e] = { 3, 0 }, /* F4 -> Note Pad */
91 [0x01] = { 4, 0 }, /* Esc -> Power */
92 [0x4b] = { 0, 1 }, /* Left */
93 [0x50] = { 1, 1 }, /* Down */
94 [0x48] = { 2, 1 }, /* Up */
95 [0x4d] = { 3, 1 }, /* Right */
96 [0x4c] = { 4, 1 }, /* Centre */
97 [0x39] = { 4, 1 }, /* Spc -> Centre */
98};
99
100static void palmte_button_event(void *opaque, int keycode)
101{
102 struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
103
104 if (palmte_keymap[keycode & 0x7f].row != -1)
105 omap_mpuio_key(cpu->mpuio,
106 palmte_keymap[keycode & 0x7f].row,
107 palmte_keymap[keycode & 0x7f].column,
108 !(keycode & 0x80));
109}
110
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111static void palmte_mmc_cover(void *opaque, int line, int level)
112{
113 struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
114
115 qemu_set_irq(omap_mpuio_in_get(cpu->mpuio)[PALMTE_MMC_SWITCH_GPIO],
116 !level);
117}
118
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119static void palmte_init(int ram_size, int vga_ram_size, int boot_device,
120 DisplayState *ds, const char **fd_filename, int snapshot,
121 const char *kernel_filename, const char *kernel_cmdline,
122 const char *initrd_filename, const char *cpu_model)
123{
124 struct omap_mpu_state_s *cpu;
125 int flash_size = 0x00800000;
126 int sdram_size = 0x02000000;
127 int io;
128 static uint32_t cs0val = 0xffffffff;
129 static uint32_t cs1val = 0x0000e1a0;
130 static uint32_t cs2val = 0x0000e1a0;
131 static uint32_t cs3val = 0xe1a0e1a0;
132 ram_addr_t phys_flash;
133 int rom_size, rom_loaded = 0;
134
135 if (ram_size < flash_size + sdram_size + OMAP15XX_SRAM_SIZE) {
136 fprintf(stderr, "This architecture uses %i bytes of memory\n",
137 flash_size + sdram_size + OMAP15XX_SRAM_SIZE);
138 exit(1);
139 }
140
141 cpu = omap310_mpu_init(sdram_size, ds, cpu_model);
142
143 /* External Flash (EMIFS) */
144 cpu_register_physical_memory(OMAP_CS0_BASE, flash_size,
145 (phys_flash = qemu_ram_alloc(flash_size)) | IO_MEM_ROM);
146
147 io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs0val);
148 cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
149 OMAP_CS0_SIZE - flash_size, io);
150 io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs1val);
151 cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
152 io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs2val);
153 cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
154 io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs3val);
155 cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
156
157 palmte_microwire_setup(cpu);
158
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159 qemu_add_kbd_event_handler(palmte_button_event, cpu);
160
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161 omap_mmc_handlers(cpu->mmc,
162 omap_gpio_in_get(cpu->gpio)[PALMTE_MMC_WP_GPIO],
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163 qemu_allocate_irqs(palmte_mmc_cover, cpu, 1)[0]);
164
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165 /* Setup initial (reset) machine state */
166 if (nb_option_roms) {
167 rom_size = get_image_size(option_rom[0]);
168 if (rom_size > flash_size)
169 fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
170 __FUNCTION__, rom_size, flash_size);
171 else if (rom_size > 0 && load_image(option_rom[0],
172 phys_ram_base + phys_flash) > 0) {
173 rom_loaded = 1;
174 cpu->env->regs[15] = 0x00000000;
175 } else
176 fprintf(stderr, "%s: error loading '%s'\n",
177 __FUNCTION__, option_rom[0]);
178 }
179
180 if (!rom_loaded && !kernel_filename) {
181 fprintf(stderr, "Kernel or ROM image must be specified\n");
182 exit(1);
183 }
184
185 /* Load the kernel. */
186 if (kernel_filename) {
187 /* Start at bootloader. */
188 cpu->env->regs[15] = OMAP_EMIFF_BASE;
189
190 arm_load_kernel(cpu->env, sdram_size, kernel_filename, kernel_cmdline,
191 initrd_filename, 0x331, OMAP_EMIFF_BASE);
192 }
193
194 dpy_resize(ds, 320, 320);
195}
196
197QEMUMachine palmte_machine = {
198 "cheetah",
199 "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
200 palmte_init,
201};