2 * Copyright (C) 2004 PaulReynolds@lhsolutions.com
5 * Stefan Roese, DENX Software Engineering, sr@denx.de.
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 #include <asm/processor.h>
28 #include <spd_sdram.h>
29 #include <ppc4xx_enet.h>
32 #ifdef CONFIG_SYS_INIT_SHOW_RESET_REG
33 void show_reset_reg(void);
36 DECLARE_GLOBAL_DATA_PTR;
40 int board_early_init_f (void)
43 volatile unsigned int *GpioOdr;
44 volatile unsigned int *GpioTcr;
45 volatile unsigned int *GpioOr;
47 /*-------------------------------------------------------------------------+
48 | Initialize EBC CONFIG
49 +-------------------------------------------------------------------------*/
50 mtebc(EBC0_CFG, EBC_CFG_LE_UNLOCK |
51 EBC_CFG_PTD_ENABLE | EBC_CFG_RTC_64PERCLK |
52 EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS |
53 EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_DEFAULT |
54 EBC_CFG_PME_DISABLE | EBC_CFG_PR_32);
56 /*-------------------------------------------------------------------------+
57 | 64MB FLASH. Initialize bank 0 with default values.
58 +-------------------------------------------------------------------------*/
59 mtebc(PB0AP, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(15) |
60 EBC_BXAP_BCE_DISABLE |
61 EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
62 EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
63 EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
64 EBC_BXAP_BEM_WRITEONLY |
65 EBC_BXAP_PEN_DISABLED);
66 mtebc(PB0CR, EBC_BXCR_BAS_ENCODE(CONFIG_SYS_FLASH_BASE) |
67 EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_32BIT);
69 /*-------------------------------------------------------------------------+
70 | FPGA. Initialize bank 1 with default values.
71 +-------------------------------------------------------------------------*/
72 mtebc(PB1AP, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(5) |
73 EBC_BXAP_BCE_DISABLE |
74 EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
75 EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
76 EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
77 EBC_BXAP_BEM_WRITEONLY |
78 EBC_BXAP_PEN_DISABLED);
79 mtebc(PB1CR, EBC_BXCR_BAS_ENCODE(0x41000000) |
80 EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_8BIT);
82 /*-------------------------------------------------------------------------+
83 | LCM. Initialize bank 2 with default values.
84 +-------------------------------------------------------------------------*/
85 mtebc(PB2AP, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(64) |
86 EBC_BXAP_BCE_DISABLE |
87 EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
88 EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
89 EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
90 EBC_BXAP_BEM_WRITEONLY |
91 EBC_BXAP_PEN_DISABLED);
92 mtebc(PB2CR, EBC_BXCR_BAS_ENCODE(0x42000000) |
93 EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_8BIT);
95 /*-------------------------------------------------------------------------+
96 | TMP. Initialize bank 3 with default values.
97 +-------------------------------------------------------------------------*/
98 mtebc(PB3AP, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(128) |
99 EBC_BXAP_BCE_DISABLE |
100 EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
101 EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
102 EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
103 EBC_BXAP_BEM_WRITEONLY |
104 EBC_BXAP_PEN_DISABLED);
105 mtebc(PB3CR, EBC_BXCR_BAS_ENCODE(0x48000000) |
106 EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_32BIT);
108 /*-------------------------------------------------------------------------+
109 | Connector 4~7. Initialize bank 3~ 7 with default values.
110 +-------------------------------------------------------------------------*/
120 /*--------------------------------------------------------------------
121 * Setup the interrupt controller polarities, triggers, etc.
122 *-------------------------------------------------------------------*/
124 * Because of the interrupt handling rework to handle 440GX interrupts
125 * with the common code, we needed to change names of the UIC registers.
126 * Here the new relationship:
128 * U-Boot name 440GX name
129 * -----------------------
135 mtdcr (UIC1SR, 0xffffffff); /* clear all */
136 mtdcr (UIC1ER, 0x00000000); /* disable all */
137 mtdcr (UIC1CR, 0x00000009); /* SMI & UIC1 crit are critical */
138 mtdcr (UIC1PR, 0xfffffe13); /* per ref-board manual */
139 mtdcr (UIC1TR, 0x01c00008); /* per ref-board manual */
140 mtdcr (UIC1VR, 0x00000001); /* int31 highest, base=0x000 */
141 mtdcr (UIC1SR, 0xffffffff); /* clear all */
143 mtdcr (UIC2SR, 0xffffffff); /* clear all */
144 mtdcr (UIC2ER, 0x00000000); /* disable all */
145 mtdcr (UIC2CR, 0x00000000); /* all non-critical */
146 mtdcr (UIC2PR, 0xffffe0ff); /* per ref-board manual */
147 mtdcr (UIC2TR, 0x00ffc000); /* per ref-board manual */
148 mtdcr (UIC2VR, 0x00000001); /* int31 highest, base=0x000 */
149 mtdcr (UIC2SR, 0xffffffff); /* clear all */
151 mtdcr (UIC3SR, 0xffffffff); /* clear all */
152 mtdcr (UIC3ER, 0x00000000); /* disable all */
153 mtdcr (UIC3CR, 0x00000000); /* all non-critical */
154 mtdcr (UIC3PR, 0xffffffff); /* per ref-board manual */
155 mtdcr (UIC3TR, 0x00ff8c0f); /* per ref-board manual */
156 mtdcr (UIC3VR, 0x00000001); /* int31 highest, base=0x000 */
157 mtdcr (UIC3SR, 0xffffffff); /* clear all */
159 mtdcr (UIC0SR, 0xfc000000); /* clear all */
160 mtdcr (UIC0ER, 0x00000000); /* disable all */
161 mtdcr (UIC0CR, 0x00000000); /* all non-critical */
162 mtdcr (UIC0PR, 0xfc000000); /* */
163 mtdcr (UIC0TR, 0x00000000); /* */
164 mtdcr (UIC0VR, 0x00000001); /* */
166 /* Enable two GPIO 10~11 and TraceA signal */
167 mfsdr(SDR0_PFC0,reg);
169 mtsdr(SDR0_PFC0,reg);
171 mfsdr(SDR0_PFC1,reg);
173 mtsdr(SDR0_PFC1,reg);
175 /* Set GPIO 10 and 11 as output */
176 GpioOdr = (volatile unsigned int*)(CONFIG_SYS_PERIPHERAL_BASE+0x718);
177 GpioTcr = (volatile unsigned int*)(CONFIG_SYS_PERIPHERAL_BASE+0x704);
178 GpioOr = (volatile unsigned int*)(CONFIG_SYS_PERIPHERAL_BASE+0x700);
180 *GpioOdr &= ~(0x00300000);
181 *GpioTcr |= 0x00300000;
182 *GpioOr |= 0x00300000;
187 int misc_init_r(void)
194 int checkboard (void)
196 char *s = getenv ("serial#");
198 printf ("Board: Taishan - AMCC PPC440GX Evaluation Board");
205 #ifdef CONFIG_SYS_INIT_SHOW_RESET_REG
212 /*************************************************************************
215 * This routine is called just prior to registering the hose and gives
216 * the board the opportunity to check things. Returning a value of zero
217 * indicates that things are bad & PCI initialization should be aborted.
219 * Different boards may wish to customize the pci controller structure
220 * (add regions, override default access routines, etc) or perform
221 * certain pre-initialization actions.
223 ************************************************************************/
224 #if defined(CONFIG_PCI)
225 int pci_pre_init(struct pci_controller * hose )
229 /*--------------------------------------------------------------------------+
230 * The ocotea board is always configured as the host & requires the
231 * PCI arbiter to be enabled.
232 *--------------------------------------------------------------------------*/
233 mfsdr(SDR0_SDSTP1, strap);
234 if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
235 printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
241 #endif /* defined(CONFIG_PCI) */
243 /*************************************************************************
246 * The bootstrap configuration provides default settings for the pci
247 * inbound map (PIM). But the bootstrap config choices are limited and
248 * may not be sufficient for a given board.
250 ************************************************************************/
251 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
252 void pci_target_init(struct pci_controller * hose )
254 /*--------------------------------------------------------------------------+
256 *--------------------------------------------------------------------------*/
257 out32r( PCIL0_PIM0SA, 0 ); /* disable */
258 out32r( PCIL0_PIM1SA, 0 ); /* disable */
259 out32r( PCIL0_PIM2SA, 0 ); /* disable */
260 out32r( PCIL0_EROMBA, 0 ); /* disable expansion rom */
262 /*--------------------------------------------------------------------------+
263 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
264 * options to not support sizes such as 128/256 MB.
265 *--------------------------------------------------------------------------*/
266 out32r( PCIL0_PIM0LAL, CONFIG_SYS_SDRAM_BASE );
267 out32r( PCIL0_PIM0LAH, 0 );
268 out32r( PCIL0_PIM0SA, ~(gd->ram_size - 1) | 1 );
270 out32r( PCIL0_BAR0, 0 );
272 /*--------------------------------------------------------------------------+
273 * Program the board's subsystem id/vendor id
274 *--------------------------------------------------------------------------*/
275 out16r( PCIL0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID );
276 out16r( PCIL0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID );
278 out16r( PCIL0_CMD, in16r(PCIL0_CMD) | PCI_COMMAND_MEMORY );
280 #endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
284 * Returns 1 if keys pressed to start the power-on long-running tests
285 * Called from board_init_f().
287 int post_hotkeys_pressed(void)
293 int board_eth_init(bd_t *bis)
296 return pci_eth_init(bis);