Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 1 | // 32bit code to Power On Self Test (POST) a machine. |
| 2 | // |
Kevin O'Connor | 2929c35 | 2009-07-25 13:48:27 -0400 | [diff] [blame] | 3 | // Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net> |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 4 | // Copyright (C) 2002 MandrakeSoft S.A. |
| 5 | // |
Kevin O'Connor | b1b7c2a | 2009-01-15 20:52:58 -0500 | [diff] [blame] | 6 | // This file may be distributed under the terms of the GNU LGPLv3 license. |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 7 | |
| 8 | #include "ioport.h" // PORT_* |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 9 | #include "config.h" // CONFIG_* |
| 10 | #include "cmos.h" // CMOS_* |
| 11 | #include "util.h" // memset |
| 12 | #include "biosvar.h" // struct bios_data_area_s |
Kevin O'Connor | 3bbcc14 | 2008-04-13 17:07:33 -0400 | [diff] [blame] | 13 | #include "disk.h" // floppy_drive_setup |
Kevin O'Connor | c892b13 | 2009-08-11 21:59:37 -0400 | [diff] [blame] | 14 | #include "ata.h" // ata_setup |
Kevin O'Connor | c781293 | 2008-06-08 23:08:12 -0400 | [diff] [blame] | 15 | #include "memmap.h" // add_e820 |
Kevin O'Connor | f54c150 | 2008-06-14 15:56:16 -0400 | [diff] [blame] | 16 | #include "pic.h" // pic_setup |
Kevin O'Connor | 0525d29 | 2008-07-04 06:18:30 -0400 | [diff] [blame] | 17 | #include "pci.h" // create_pirtable |
| 18 | #include "acpi.h" // acpi_bios_init |
Kevin O'Connor | 9521e26 | 2008-07-04 13:04:29 -0400 | [diff] [blame] | 19 | #include "bregs.h" // struct bregs |
Kevin O'Connor | 3574644 | 2009-02-27 20:54:51 -0500 | [diff] [blame] | 20 | #include "mptable.h" // mptable_init |
Kevin O'Connor | c659fde | 2008-12-28 23:43:20 -0500 | [diff] [blame] | 21 | #include "boot.h" // IPL |
Kevin O'Connor | 114592f | 2009-09-28 21:32:08 -0400 | [diff] [blame] | 22 | #include "usb.h" // usb_setup |
Kevin O'Connor | 01a8520 | 2009-10-18 09:49:59 -0400 | [diff] [blame] | 23 | #include "smbios.h" // smbios_init |
| 24 | #include "paravirt.h" // qemu_cfg_port_probe |
Kevin O'Connor | 5787748 | 2009-12-09 21:00:41 -0500 | [diff] [blame] | 25 | #include "ps2port.h" // ps2port_setup |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 26 | |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 27 | void |
| 28 | __set_irq(int vector, void *loc) |
Kevin O'Connor | e3677b1 | 2008-07-04 15:29:23 -0400 | [diff] [blame] | 29 | { |
Kevin O'Connor | 9f98542 | 2009-09-09 11:34:39 -0400 | [diff] [blame] | 30 | SET_IVT(vector, SEGOFF(SEG_BIOS, (u32)loc - BUILD_BIOS_ADDR)); |
Kevin O'Connor | e3677b1 | 2008-07-04 15:29:23 -0400 | [diff] [blame] | 31 | } |
| 32 | |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 33 | #define set_irq(vector, func) do { \ |
| 34 | extern void func (void); \ |
| 35 | __set_irq(vector, func); \ |
| 36 | } while (0) |
Kevin O'Connor | 2fda7cb | 2008-07-05 20:41:53 -0400 | [diff] [blame] | 37 | |
Kevin O'Connor | e3677b1 | 2008-07-04 15:29:23 -0400 | [diff] [blame] | 38 | static void |
Kevin O'Connor | 1ca05b0 | 2010-01-03 17:43:37 -0500 | [diff] [blame] | 39 | init_ivt(void) |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 40 | { |
Kevin O'Connor | 8c0e372 | 2009-01-02 14:19:43 -0500 | [diff] [blame] | 41 | dprintf(3, "init ivt\n"); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 42 | |
Kevin O'Connor | d67a703 | 2009-01-17 19:37:26 -0500 | [diff] [blame] | 43 | // Initialize all vectors to the default handler. |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 44 | int i; |
Kevin O'Connor | e3677b1 | 2008-07-04 15:29:23 -0400 | [diff] [blame] | 45 | for (i=0; i<256; i++) |
Kevin O'Connor | d67a703 | 2009-01-17 19:37:26 -0500 | [diff] [blame] | 46 | set_irq(i, entry_iret_official); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 47 | |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 48 | // Initialize all hw vectors to a default hw handler. |
| 49 | for (i=0x08; i<=0x0f; i++) |
Kevin O'Connor | ffdc9ee | 2008-12-20 13:10:00 -0500 | [diff] [blame] | 50 | set_irq(i, entry_hwpic1); |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 51 | for (i=0x70; i<=0x77; i++) |
Kevin O'Connor | ffdc9ee | 2008-12-20 13:10:00 -0500 | [diff] [blame] | 52 | set_irq(i, entry_hwpic2); |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 53 | |
| 54 | // Initialize software handlers. |
Kevin O'Connor | 75f49b3 | 2009-03-07 00:07:24 -0500 | [diff] [blame] | 55 | set_irq(0x02, entry_02); |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 56 | set_irq(0x10, entry_10); |
Kevin O'Connor | 9f193b9 | 2009-05-16 23:31:27 -0400 | [diff] [blame] | 57 | set_irq(0x11, entry_11); |
| 58 | set_irq(0x12, entry_12); |
Kevin O'Connor | b4f0e89 | 2008-12-13 18:33:05 -0500 | [diff] [blame] | 59 | set_irq(0x13, entry_13_official); |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 60 | set_irq(0x14, entry_14); |
| 61 | set_irq(0x15, entry_15); |
| 62 | set_irq(0x16, entry_16); |
| 63 | set_irq(0x17, entry_17); |
| 64 | set_irq(0x18, entry_18); |
Kevin O'Connor | b4f0e89 | 2008-12-13 18:33:05 -0500 | [diff] [blame] | 65 | set_irq(0x19, entry_19_official); |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 66 | set_irq(0x1a, entry_1a); |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 67 | set_irq(0x40, entry_40); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 68 | |
Kevin O'Connor | b164d2c | 2009-12-26 23:24:52 -0500 | [diff] [blame] | 69 | // INT 60h-66h reserved for user interrupt |
| 70 | for (i=0x60; i<=0x66; i++) |
| 71 | SET_IVT(i, SEGOFF(0, 0)); |
| 72 | |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 73 | // set vector 0x79 to zero |
| 74 | // this is used by 'gardian angel' protection system |
Kevin O'Connor | 9f98542 | 2009-09-09 11:34:39 -0400 | [diff] [blame] | 75 | SET_IVT(0x79, SEGOFF(0, 0)); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 76 | |
Kevin O'Connor | d21c089 | 2008-11-26 17:02:43 -0500 | [diff] [blame] | 77 | __set_irq(0x1E, &diskette_param_table2); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | static void |
Kevin O'Connor | 1ca05b0 | 2010-01-03 17:43:37 -0500 | [diff] [blame] | 81 | init_bda(void) |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 82 | { |
Kevin O'Connor | 8c0e372 | 2009-01-02 14:19:43 -0500 | [diff] [blame] | 83 | dprintf(3, "init bda\n"); |
| 84 | |
Kevin O'Connor | 35ae726 | 2009-01-19 15:44:44 -0500 | [diff] [blame] | 85 | struct bios_data_area_s *bda = MAKE_FLATPTR(SEG_BDA, 0); |
Kevin O'Connor | 8c0e372 | 2009-01-02 14:19:43 -0500 | [diff] [blame] | 86 | memset(bda, 0, sizeof(*bda)); |
| 87 | |
Kevin O'Connor | 49553a4 | 2009-05-17 10:31:34 -0400 | [diff] [blame] | 88 | int esize = EBDA_SIZE_START; |
Kevin O'Connor | f416fe9 | 2009-09-24 20:51:55 -0400 | [diff] [blame] | 89 | SET_BDA(mem_size_kb, BUILD_LOWRAM_END/1024 - esize); |
Kevin O'Connor | 49553a4 | 2009-05-17 10:31:34 -0400 | [diff] [blame] | 90 | u16 eseg = EBDA_SEGMENT_START; |
Kevin O'Connor | 4d7c37e | 2008-12-26 23:50:17 -0500 | [diff] [blame] | 91 | SET_BDA(ebda_seg, eseg); |
| 92 | |
Kevin O'Connor | 9becbf1 | 2009-07-12 09:29:46 -0400 | [diff] [blame] | 93 | // Init ebda |
Kevin O'Connor | 4d7c37e | 2008-12-26 23:50:17 -0500 | [diff] [blame] | 94 | struct extended_bios_data_area_s *ebda = get_ebda_ptr(); |
Kevin O'Connor | 38fcbfe | 2008-02-25 22:30:47 -0500 | [diff] [blame] | 95 | memset(ebda, 0, sizeof(*ebda)); |
Kevin O'Connor | 4d7c37e | 2008-12-26 23:50:17 -0500 | [diff] [blame] | 96 | ebda->size = esize; |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | static void |
Kevin O'Connor | 9571ac2 | 2008-05-17 22:20:27 -0400 | [diff] [blame] | 100 | ram_probe(void) |
| 101 | { |
Kevin O'Connor | 35192dd | 2008-06-08 19:18:33 -0400 | [diff] [blame] | 102 | dprintf(3, "Find memory size\n"); |
Kevin O'Connor | f64f0db | 2008-05-18 02:42:58 -0400 | [diff] [blame] | 103 | if (CONFIG_COREBOOT) { |
Kevin O'Connor | 4c0c85a | 2009-04-11 23:31:29 -0400 | [diff] [blame] | 104 | coreboot_setup(); |
Kevin O'Connor | f64f0db | 2008-05-18 02:42:58 -0400 | [diff] [blame] | 105 | } else { |
| 106 | // On emulators, get memory size from nvram. |
Kevin O'Connor | 59c35f2 | 2008-10-25 23:05:42 -0400 | [diff] [blame] | 107 | u32 rs = ((inb_cmos(CMOS_MEM_EXTMEM2_LOW) << 16) |
| 108 | | (inb_cmos(CMOS_MEM_EXTMEM2_HIGH) << 24)); |
Kevin O'Connor | f64f0db | 2008-05-18 02:42:58 -0400 | [diff] [blame] | 109 | if (rs) |
| 110 | rs += 16 * 1024 * 1024; |
| 111 | else |
Kevin O'Connor | 59c35f2 | 2008-10-25 23:05:42 -0400 | [diff] [blame] | 112 | rs = (((inb_cmos(CMOS_MEM_EXTMEM_LOW) << 10) |
| 113 | | (inb_cmos(CMOS_MEM_EXTMEM_HIGH) << 18)) |
Kevin O'Connor | f64f0db | 2008-05-18 02:42:58 -0400 | [diff] [blame] | 114 | + 1 * 1024 * 1024); |
Kevin O'Connor | e791636 | 2008-12-28 22:03:17 -0500 | [diff] [blame] | 115 | RamSize = rs; |
Kevin O'Connor | c781293 | 2008-06-08 23:08:12 -0400 | [diff] [blame] | 116 | add_e820(0, rs, E820_RAM); |
| 117 | |
Kevin O'Connor | 59c35f2 | 2008-10-25 23:05:42 -0400 | [diff] [blame] | 118 | // Check for memory over 4Gig |
| 119 | u64 high = ((inb_cmos(CMOS_MEM_HIGHMEM_LOW) << 16) |
Kevin O'Connor | 669c991 | 2010-01-05 19:50:04 -0500 | [diff] [blame^] | 120 | | ((u32)inb_cmos(CMOS_MEM_HIGHMEM_MID) << 24) |
Kevin O'Connor | 59c35f2 | 2008-10-25 23:05:42 -0400 | [diff] [blame] | 121 | | ((u64)inb_cmos(CMOS_MEM_HIGHMEM_HIGH) << 32)); |
Kevin O'Connor | e791636 | 2008-12-28 22:03:17 -0500 | [diff] [blame] | 122 | RamSizeOver4G = high; |
Kevin O'Connor | 59c35f2 | 2008-10-25 23:05:42 -0400 | [diff] [blame] | 123 | add_e820(0x100000000ull, high, E820_RAM); |
| 124 | |
Kevin O'Connor | c781293 | 2008-06-08 23:08:12 -0400 | [diff] [blame] | 125 | /* reserve 256KB BIOS area at the end of 4 GB */ |
| 126 | add_e820(0xfffc0000, 256*1024, E820_RESERVED); |
Kevin O'Connor | f64f0db | 2008-05-18 02:42:58 -0400 | [diff] [blame] | 127 | } |
Kevin O'Connor | 9571ac2 | 2008-05-17 22:20:27 -0400 | [diff] [blame] | 128 | |
Kevin O'Connor | b8d7a47 | 2008-06-21 11:43:32 -0400 | [diff] [blame] | 129 | // Don't declare any memory between 0xa0000 and 0x100000 |
Kevin O'Connor | f416fe9 | 2009-09-24 20:51:55 -0400 | [diff] [blame] | 130 | add_e820(BUILD_LOWRAM_END, BUILD_BIOS_ADDR-BUILD_LOWRAM_END, E820_HOLE); |
Kevin O'Connor | b8d7a47 | 2008-06-21 11:43:32 -0400 | [diff] [blame] | 131 | |
Kevin O'Connor | c781293 | 2008-06-08 23:08:12 -0400 | [diff] [blame] | 132 | // Mark known areas as reserved. |
Kevin O'Connor | 0881537 | 2008-12-29 21:16:31 -0500 | [diff] [blame] | 133 | u16 ebda_seg = get_ebda_seg(); |
Kevin O'Connor | 35ae726 | 2009-01-19 15:44:44 -0500 | [diff] [blame] | 134 | add_e820((u32)MAKE_FLATPTR(ebda_seg, 0), GET_EBDA2(ebda_seg, size) * 1024 |
Kevin O'Connor | 4d7c37e | 2008-12-26 23:50:17 -0500 | [diff] [blame] | 135 | , E820_RESERVED); |
Kevin O'Connor | e3677b1 | 2008-07-04 15:29:23 -0400 | [diff] [blame] | 136 | add_e820(BUILD_BIOS_ADDR, BUILD_BIOS_SIZE, E820_RESERVED); |
Kevin O'Connor | c781293 | 2008-06-08 23:08:12 -0400 | [diff] [blame] | 137 | |
Kevin O'Connor | b8bf14a | 2009-10-08 21:50:31 -0400 | [diff] [blame] | 138 | if (kvm_para_available()) |
Kevin O'Connor | 7061eb6 | 2009-01-04 21:48:22 -0500 | [diff] [blame] | 139 | // 4 pages before the bios, 3 pages for vmx tss pages, the |
| 140 | // other page for EPT real mode pagetable |
| 141 | add_e820(0xfffbc000, 4*4096, E820_RESERVED); |
| 142 | |
Kevin O'Connor | 979862e | 2009-12-24 11:09:30 -0500 | [diff] [blame] | 143 | dprintf(1, "Ram Size=0x%08x (0x%08x%08x high)\n" |
| 144 | , RamSize, (u32)(RamSizeOver4G >> 32), (u32)RamSizeOver4G); |
Kevin O'Connor | 9571ac2 | 2008-05-17 22:20:27 -0400 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | static void |
Kevin O'Connor | 0525d29 | 2008-07-04 06:18:30 -0400 | [diff] [blame] | 148 | init_bios_tables(void) |
| 149 | { |
Kevin O'Connor | df5a5fd | 2009-07-28 20:46:03 -0400 | [diff] [blame] | 150 | if (CONFIG_COREBOOT) { |
| 151 | coreboot_copy_biostable(); |
Kevin O'Connor | 0525d29 | 2008-07-04 06:18:30 -0400 | [diff] [blame] | 152 | return; |
Kevin O'Connor | df5a5fd | 2009-07-28 20:46:03 -0400 | [diff] [blame] | 153 | } |
Kevin O'Connor | 0525d29 | 2008-07-04 06:18:30 -0400 | [diff] [blame] | 154 | |
Kevin O'Connor | 0525d29 | 2008-07-04 06:18:30 -0400 | [diff] [blame] | 155 | create_pirtable(); |
| 156 | |
| 157 | mptable_init(); |
| 158 | |
| 159 | smbios_init(); |
| 160 | |
| 161 | acpi_bios_init(); |
| 162 | } |
| 163 | |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 164 | // Main setup code. |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 165 | static void |
Kevin O'Connor | 1ca05b0 | 2010-01-03 17:43:37 -0500 | [diff] [blame] | 166 | post(void) |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 167 | { |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 168 | // Detect and init ram. |
Kevin O'Connor | 8c0e372 | 2009-01-02 14:19:43 -0500 | [diff] [blame] | 169 | init_ivt(); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 170 | init_bda(); |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 171 | memmap_setup(); |
| 172 | ram_probe(); |
| 173 | malloc_setup(); |
Kevin O'Connor | e9a67bf | 2009-12-09 20:04:54 -0500 | [diff] [blame] | 174 | thread_setup(); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 175 | |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 176 | // Init base pc hardware. |
Kevin O'Connor | f54c150 | 2008-06-14 15:56:16 -0400 | [diff] [blame] | 177 | pic_setup(); |
Kevin O'Connor | e6eb3f5 | 2008-04-13 17:37:41 -0400 | [diff] [blame] | 178 | timer_setup(); |
Kevin O'Connor | 714325c | 2008-11-01 20:32:27 -0400 | [diff] [blame] | 179 | mathcp_setup(); |
| 180 | |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 181 | // Initialize smp |
| 182 | qemu_cfg_port_probe(); |
Kevin O'Connor | acf1374 | 2008-11-29 11:19:19 -0500 | [diff] [blame] | 183 | smp_probe_setup(); |
Kevin O'Connor | 7061eb6 | 2009-01-04 21:48:22 -0500 | [diff] [blame] | 184 | mtrr_setup(); |
Kevin O'Connor | e97ca7b | 2009-06-21 09:10:28 -0400 | [diff] [blame] | 185 | smp_probe(); |
Kevin O'Connor | ceea03c | 2008-11-08 21:36:35 -0500 | [diff] [blame] | 186 | |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 187 | // Initialize pci |
Kevin O'Connor | 40f5b5a | 2009-09-13 10:46:57 -0400 | [diff] [blame] | 188 | pci_setup(); |
| 189 | smm_init(); |
| 190 | |
Kevin O'Connor | 9803280 | 2009-12-09 20:18:31 -0500 | [diff] [blame] | 191 | // Setup interfaces that option roms may need |
Kevin O'Connor | 871e0a0 | 2009-12-30 12:14:53 -0500 | [diff] [blame] | 192 | bios32_setup(); |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 193 | pmm_setup(); |
Kevin O'Connor | 0c3068d | 2008-12-21 17:51:36 -0500 | [diff] [blame] | 194 | pnp_setup(); |
Kevin O'Connor | 5787748 | 2009-12-09 21:00:41 -0500 | [diff] [blame] | 195 | kbd_setup(); |
| 196 | mouse_setup(); |
Kevin O'Connor | 9803280 | 2009-12-09 20:18:31 -0500 | [diff] [blame] | 197 | init_bios_tables(); |
| 198 | |
| 199 | // Run vga option rom (if running synchronously) |
| 200 | if (!CONFIG_THREADS || !CONFIG_THREAD_OPTIONROMS) |
| 201 | vga_setup(); |
Kevin O'Connor | 714325c | 2008-11-01 20:32:27 -0400 | [diff] [blame] | 202 | |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 203 | // Initialize hardware devices |
Kevin O'Connor | 114592f | 2009-09-28 21:32:08 -0400 | [diff] [blame] | 204 | usb_setup(); |
Kevin O'Connor | 5787748 | 2009-12-09 21:00:41 -0500 | [diff] [blame] | 205 | ps2port_setup(); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 206 | lpt_setup(); |
| 207 | serial_setup(); |
Kevin O'Connor | a2e7380 | 2008-02-27 10:27:00 -0500 | [diff] [blame] | 208 | |
Kevin O'Connor | 9f4e1d9 | 2009-02-08 15:44:08 -0500 | [diff] [blame] | 209 | boot_setup(); |
Kevin O'Connor | c892b13 | 2009-08-11 21:59:37 -0400 | [diff] [blame] | 210 | drive_setup(); |
Kevin O'Connor | 36c93a5 | 2009-09-12 19:35:04 -0400 | [diff] [blame] | 211 | cdemu_setup(); |
Kevin O'Connor | c892b13 | 2009-08-11 21:59:37 -0400 | [diff] [blame] | 212 | floppy_setup(); |
| 213 | ata_setup(); |
Kevin O'Connor | a3855ad | 2009-08-16 21:59:40 -0400 | [diff] [blame] | 214 | ramdisk_setup(); |
Kevin O'Connor | a2e7380 | 2008-02-27 10:27:00 -0500 | [diff] [blame] | 215 | |
Kevin O'Connor | 9803280 | 2009-12-09 20:18:31 -0500 | [diff] [blame] | 216 | // Run option roms |
Kevin O'Connor | ad90159 | 2009-12-13 11:25:25 -0500 | [diff] [blame] | 217 | if (CONFIG_THREADS && CONFIG_THREAD_OPTIONROMS) { |
| 218 | // Run option roms while hw init still in progress. |
Kevin O'Connor | 9803280 | 2009-12-09 20:18:31 -0500 | [diff] [blame] | 219 | vga_setup(); |
Kevin O'Connor | ad90159 | 2009-12-13 11:25:25 -0500 | [diff] [blame] | 220 | optionrom_setup(); |
| 221 | wait_threads(); |
| 222 | } else { |
| 223 | // Wait for hw init to finish and run non-vga option roms. |
| 224 | wait_threads(); |
| 225 | optionrom_setup(); |
| 226 | } |
Kevin O'Connor | e54ee38 | 2009-07-26 19:33:13 -0400 | [diff] [blame] | 227 | |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 228 | // Run BCVs and show optional boot menu |
Kevin O'Connor | 0bf9270 | 2009-08-01 11:45:37 -0400 | [diff] [blame] | 229 | boot_prep(); |
| 230 | |
Kevin O'Connor | 969df60 | 2009-11-25 19:05:04 -0500 | [diff] [blame] | 231 | // Finalize data structures before boot |
Kevin O'Connor | e54ee38 | 2009-07-26 19:33:13 -0400 | [diff] [blame] | 232 | pmm_finalize(); |
| 233 | malloc_finalize(); |
| 234 | memmap_finalize(); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 235 | } |
| 236 | |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 237 | // 32-bit entry point. |
Kevin O'Connor | 52a300f | 2009-12-26 23:32:57 -0500 | [diff] [blame] | 238 | void VISIBLE32FLAT |
Kevin O'Connor | 1ca05b0 | 2010-01-03 17:43:37 -0500 | [diff] [blame] | 239 | _start(void) |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 240 | { |
Kevin O'Connor | 95576e7 | 2008-03-01 09:57:51 -0500 | [diff] [blame] | 241 | init_dma(); |
Kevin O'Connor | 95576e7 | 2008-03-01 09:57:51 -0500 | [diff] [blame] | 242 | |
Kevin O'Connor | 61d6b06 | 2008-06-21 12:15:10 -0400 | [diff] [blame] | 243 | debug_serial_setup(); |
Kevin O'Connor | c95d2ce | 2009-07-29 20:41:39 -0400 | [diff] [blame] | 244 | dprintf(1, "Start bios (version %s)\n", VERSION); |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 245 | |
Kevin O'Connor | acf1374 | 2008-11-29 11:19:19 -0500 | [diff] [blame] | 246 | // Allow writes to modify bios area (0xf0000) |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 247 | make_bios_writable(); |
| 248 | |
| 249 | // Perform main setup code. |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 250 | post(); |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 251 | |
Kevin O'Connor | e90f264 | 2008-06-28 12:18:39 -0400 | [diff] [blame] | 252 | // Setup bios checksum. |
Kevin O'Connor | 523e5a9 | 2009-07-04 13:46:33 -0400 | [diff] [blame] | 253 | BiosChecksum -= checksum((u8*)BUILD_BIOS_ADDR, BUILD_BIOS_SIZE); |
Kevin O'Connor | e90f264 | 2008-06-28 12:18:39 -0400 | [diff] [blame] | 254 | |
Kevin O'Connor | 0bf9270 | 2009-08-01 11:45:37 -0400 | [diff] [blame] | 255 | // Write protect bios memory. |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 256 | make_bios_readonly(); |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 257 | |
| 258 | // Invoke int 19 to start boot process. |
| 259 | dprintf(3, "Jump to int19\n"); |
| 260 | struct bregs br; |
| 261 | memset(&br, 0, sizeof(br)); |
Kevin O'Connor | f8e800d | 2009-09-24 21:01:16 -0400 | [diff] [blame] | 262 | br.flags = F_IF; |
Kevin O'Connor | da4a648 | 2008-06-08 13:48:06 -0400 | [diff] [blame] | 263 | call16_int(0x19, &br); |
Kevin O'Connor | f076a3e | 2008-02-25 22:25:15 -0500 | [diff] [blame] | 264 | } |