freemyipod r126 - Code Review

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Repository:freemyipod
Revision:< r125‎ | r126 | r127 >
Date:23:06, 13 August 2010
Author:theseven
Status:new
Tags:
Comment:
Add a way to have target-specific init code, and initialize the apple system information struct at the end of boot on nano2g.
Modified paths:
  • /embios/trunk/SOURCES (modified) (history)
  • /embios/trunk/init.c (modified) (history)
  • /embios/trunk/target/ipodnano2g/target.h (modified) (history)
  • /embios/trunk/target/ipodnano2g/targetinit.c (added) (history)
  • /embios/trunk/target/ipodnano4g/target.h (modified) (history)
  • /embios/trunk/targetinit.h (added) (history)

Diff [purge]

Index: embios/trunk/init.c
——@@ -29,6 +29,7 @@
3030 #include "ucl.h"
3131 #include "util.h"
3232 #include "execimage.h"
 33+#include "targetinit.h"
3334 #ifdef HAVE_LCD
3435 #include "lcd.h"
3536 #include "lcdconsole.h"
——@@ -162,14 +163,14 @@
163164 void initthread()
164165 {
165166 cputs(CONSOLE_BOOT, welcomestring);
166 - #ifdef HAVE_I2C
 167+#ifdef HAVE_I2C
167168 i2c_init();
168 - #endif
 169+#endif
169170 power_init();
170 - #ifdef HAVE_USB
 171+#ifdef HAVE_USB
171172 usb_init();
172 - #endif
173 - #ifdef HAVE_STORAGE
 173+#endif
 174+#ifdef HAVE_STORAGE
174175 DEBUGF("Initializing storage drivers...");
175176 storage_init();
176177 DEBUGF("Initializing storage subsystem...");
——@@ -178,7 +179,10 @@
179180 disk_init();
180181 DEBUGF("Mounting partitions...");
181182 disk_mount_all();
182 - #endif
 183+#endif
 184+#ifdef HAVE_TARGETINIT_LATE
 185+ targetinit_late();
 186+#endif
183187 DEBUGF("Finished initialisation sequence");
184188 boot();
185189 }
——@@ -186,12 +190,18 @@
187191 void init() INITCODE_ATTR;
188192 void init()
189193 {
 194+#ifdef HAVE_TARGETINIT_VERYEARLY
 195+ targetinit_veryearly();
 196+#endif
190197 scheduler_init();
191198 console_init();
192 - #ifdef HAVE_LCD
 199+#ifdef HAVE_LCD
193200 lcd_init();
194201 lcdconsole_init();
195 - #endif
 202+#endif
 203+#ifdef HAVE_TARGETINIT_EARLY
 204+ targetinit_early();
 205+#endif
196206 interrupt_init();
197207 thread_create(initthreadname, initthread, initstack,
198208 sizeof(initstack), USER_THREAD, 127, true);
Index: embios/trunk/target/ipodnano2g/targetinit.c
——@@ -0,0 +1,121 @@
 2+//
 3+//
 4+// Copyright 2010 TheSeven
 5+//
 6+//
 7+// This file is part of emBIOS.
 8+//
 9+// emBIOS is free software: you can redistribute it and/or
 10+// modify it under the terms of the GNU General Public License as
 11+// published by the Free Software Foundation, either version 2 of the
 12+// License, or (at your option) any later version.
 13+//
 14+// emBIOS is distributed in the hope that it will be useful,
 15+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 16+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 17+// See the GNU General Public License for more details.
 18+//
 19+// You should have received a copy of the GNU General Public License along
 20+// with emBIOS. If not, see <http://www.gnu.org/licenses/>.
 21+//
 22+//
 23+
 24+
 25+#include "global.h"
 26+
 27+
 28+#define nor ((uint8_t*)0x24000000)
 29+#define norword ((uint32_t*)0x24000000)
 30+#define sysi ((uint8_t*)0x2202bdf0)
 31+#define sysiword ((uint32_t*)0x2202bdf0)
 32+
 33+
 34+void targetinit_late()
 35+{
 36+ int i;
 37+
 38+ uint32_t scfg_size = norword[0x401];
 39+ uint32_t scfg_entrycount = norword[0x405];
 40+ if (norword[0x400] == 0x53436667 && scfg_size <= 0x1000
 41+ && scfg_entrycount * 0x14 + 0x18 == scfg_size)
 42+ {
 43+ memset(sysi, 0, 0x104);
 44+ sysiword[0] = 0x53797349;
 45+ sysiword[1] = 0x104;
 46+ sysiword[0x21] = 0x100000;
 47+ for (i = 0; i < scfg_entrycount; i++)
 48+ switch (norword[0x406 + i * 5])
 49+ {
 50+ case 0x48774e6d: // HwNm
 51+ memcpy(&sysi[0x08], &norword[0x406 + i * 5 + 1], 16);
 52+ break;
 53+ case 0x48775672: // HwVr
 54+ if (norword[0x406 + i * 5 + 1] == 0)
 55+ sysiword[0x21] = norword[0x406 + i * 5 + 2];
 56+ break;
 57+ case 0x53724e6d: // SrNm
 58+ memcpy(&sysi[0x18], &norword[0x406 + i * 5 + 1], 16);
 59+ break;
 60+ case 0x46774964: // FwId
 61+ if (nor[0x1018 + i * 0x14 + 7] == 0)
 62+ {
 63+ memcpy(&sysi[0x38], &norword[0x406 + i * 5 + 2], 3);
 64+ sysi[0x3b] = 2;
 65+ sysiword[0xf] = 0xa2700;
 66+ }
 67+ else memcpy(&sysi[0x38], &norword[0x406 + i * 5 + 2], 8);
 68+ memset(&sysi[0x40], 10, 0);
 69+ break;
 70+ case 0x556e7443: // UntC
 71+ memcpy(&sysi[0xbc], &norword[0x406 + i * 5 + 1], 16);
 72+ break;
 73+ case 0x52746341: // RtcA
 74+ if (norword[0x406 + i * 5 + 1] == 1)
 75+ sysiword[0x80] = norword[0x406 + i * 5 + 2];
 76+ break;
 77+ case 0x42747279: // Btry
 78+ if (norword[0x406 + i * 5 + 1] == 1)
 79+ memcpy(&sysi[0x5c], &norword[0x406 + i * 5 + 2], 12);
 80+ break;
 81+ case 0x5265676e: // Regn
 82+ if (nor[0x1018 + i * 0x14 + 4] == 1 && nor[0x1018 + i * 0x14 + 5] == 0)
 83+ memcpy(&sysi[0x92], &norword[0x406 + i * 5 + 2], 4);
 84+ break;
 85+ case 0x4d6f6423: // Mod#
 86+ memcpy(&sysi[0x98], &norword[0x406 + i * 5 + 1], 16);
 87+ break;
 88+ case 0x48774f31: // Hw01
 89+ memcpy(&sysi[0xa8], &norword[0x406 + i * 5 + 1], 16);
 90+ break;
 91+ case 0x436f6e74: // Cont
 92+ if (nor[0x1018 + i * 0x14 + 4] == 0 && nor[0x1018 + i * 0x14 + 5] == 0)
 93+ {
 94+ sysi[0xb8] = nor[0x1018 + i * 0x14 + 6];
 95+ sysi[0xb9] = nor[0x1018 + i * 0x14 + 8];
 96+ }
 97+ break;
 98+ case 0x426b4c74: // BkLt
 99+ if (nor[0x1018 + i * 0x14 + 4] == 0xaa && nor[0x1018 + i * 0x14 + 5] == 0x55)
 100+ {
 101+ sysi[0xba] = nor[0x1018 + i * 0x14 + 6];
 102+ sysi[0xbb] = nor[0x1018 + i * 0x14 + 8];
 103+ }
 104+ break;
 105+ case 0x44726d56: // DrmV
 106+ memcpy(&sysi[0xce], &norword[0x406 + i * 5 + 1], 16);
 107+ break;
 108+ }
 109+ sysiword[2] = 0x646f5069;
 110+ sysiword[3] = 0x36334e20;
 111+ sysi[0x88] = 0x4e;
 112+ sysi[0x89] = 0x41;
 113+ sysiword[0x38] = 0x2000000;
 114+ sysiword[0x39] = 0x8000000;
 115+ sysiword[0x3a] = 0x2c000;
 116+ sysiword[0x3b] = 0x22000000;
 117+ sysiword[0x3c] = 0x100000;
 118+ sysiword[0x3d] = 0x24000000;
 119+ sysiword[0x4a] = 0x53797349;
 120+ sysiword[0x4b] = 0x2202bdf0;
 121+ }
 122+}
Index: embios/trunk/target/ipodnano2g/target.h
——@@ -34,7 +34,7 @@
3535 #define CPU_FREQ 191692800
3636
3737
38 -#define CONSOLE_BOOT 1
 38+#define CONSOLE_BOOT 3
3939
4040
4141 #define HAVE_USB
——@@ -59,5 +59,7 @@
6060 #define CONFIG_STORAGE STORAGE_NAND
6161 #define SECTOR_SIZE 2048
6262
 63+#define HAVE_TARGETINIT_LATE
6364
 65+
6466 #endif
Index: embios/trunk/target/ipodnano4g/target.h
——@@ -34,7 +34,7 @@
3535 #define CPU_FREQ 191692800
3636
3737
38 -#define CONSOLE_BOOT 1
 38+#define CONSOLE_BOOT 3
3939
4040
4141 #define HAVE_USB
Index: embios/trunk/SOURCES
——@@ -14,6 +14,7 @@
1515 target/ipodnano2g/clockgates.c
1616 target/ipodnano2g/bootflash.c
1717 target/ipodnano2g/backlight.c
 18+target/ipodnano2g/targetinit.c
1819 usb/synopsysotg.c
1920 #endif
2021
Index: embios/trunk/targetinit.h
——@@ -0,0 +1,36 @@
 2+//
 3+//
 4+// Copyright 2010 TheSeven
 5+//
 6+//
 7+// This file is part of emBIOS.
 8+//
 9+// emBIOS is free software: you can redistribute it and/or
 10+// modify it under the terms of the GNU General Public License as
 11+// published by the Free Software Foundation, either version 2 of the
 12+// License, or (at your option) any later version.
 13+//
 14+// emBIOS is distributed in the hope that it will be useful,
 15+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 16+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 17+// See the GNU General Public License for more details.
 18+//
 19+// You should have received a copy of the GNU General Public License along
 20+// with emBIOS. If not, see <http://www.gnu.org/licenses/>.
 21+//
 22+//
 23+
 24+
 25+#ifndef __TARGETINIT_H__
 26+#define __TARGETINIT_H__
 27+
 28+
 29+#include "global.h"
 30+
 31+
 32+void targetinit_veryearly() INITCODE_ATTR;
 33+void targetinit_early() INITCODE_ATTR;
 34+void targetinit_late() INITCODE_ATTR;
 35+
 36+
 37+#endif
\ No newline at end of file
Retrieved from "https://freemyipod.org/wiki/Special:Code/freemyipod/126"