blob: dc3431961f40c4c0b32c2e9b3cc3b321760bf466 [file] [log] [blame]
Stefan Roese899620c2006-08-15 14:22:35 +02001/*
2 * (C) Copyright 2006
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24
25#include <common.h>
Stefan Roese94627322008-03-19 10:23:43 +010026#include <libfdt.h>
27#include <fdt_support.h>
Stefan Roese899620c2006-08-15 14:22:35 +020028#include <spd_sdram.h>
29#include <ppc4xx_enet.h>
Stefan Roese1c2ce222006-11-27 14:12:17 +010030#include <miiphy.h>
Stefan Roese94627322008-03-19 10:23:43 +010031#include <asm/processor.h>
Stefan Roese899620c2006-08-15 14:22:35 +020032
33DECLARE_GLOBAL_DATA_PTR;
34
35extern int alpr_fpga_init(void);
36
37int board_early_init_f (void)
38{
Stefan Roese1c2ce222006-11-27 14:12:17 +010039 /*-------------------------------------------------------------------------
40 * Initialize EBC CONFIG
41 *-------------------------------------------------------------------------*/
Stefan Roese5bc528f2006-10-07 11:35:25 +020042 mtebc(xbcfg, EBC_CFG_LE_UNLOCK |
43 EBC_CFG_PTD_DISABLE | EBC_CFG_RTC_64PERCLK |
44 EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS |
45 EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_NONDEFAULT |
46 EBC_CFG_PME_DISABLE | EBC_CFG_PR_32);
Stefan Roese899620c2006-08-15 14:22:35 +020047
48 /*--------------------------------------------------------------------
49 * Setup the interrupt controller polarities, triggers, etc.
50 *-------------------------------------------------------------------*/
Stefan Roese5de85142008-06-26 17:36:39 +020051 /*
52 * Because of the interrupt handling rework to handle 440GX interrupts
53 * with the common code, we needed to change names of the UIC registers.
54 * Here the new relationship:
55 *
56 * U-Boot name 440GX name
57 * -----------------------
58 * UIC0 UICB0
59 * UIC1 UIC0
60 * UIC2 UIC1
61 * UIC3 UIC2
62 */
Stefan Roese899620c2006-08-15 14:22:35 +020063 mtdcr (uic1sr, 0xffffffff); /* clear all */
64 mtdcr (uic1er, 0x00000000); /* disable all */
Stefan Roese5de85142008-06-26 17:36:39 +020065 mtdcr (uic1cr, 0x00000009); /* SMI & UIC1 crit are critical */
66 mtdcr (uic1pr, 0xfffffe03); /* per manual */
67 mtdcr (uic1tr, 0x01c00000); /* per manual */
Stefan Roese899620c2006-08-15 14:22:35 +020068 mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */
69 mtdcr (uic1sr, 0xffffffff); /* clear all */
70
71 mtdcr (uic2sr, 0xffffffff); /* clear all */
72 mtdcr (uic2er, 0x00000000); /* disable all */
73 mtdcr (uic2cr, 0x00000000); /* all non-critical */
Stefan Roese5de85142008-06-26 17:36:39 +020074 mtdcr (uic2pr, 0xffffe0ff); /* per ref-board manual */
75 mtdcr (uic2tr, 0x00ffc000); /* per ref-board manual */
Stefan Roese899620c2006-08-15 14:22:35 +020076 mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */
77 mtdcr (uic2sr, 0xffffffff); /* clear all */
78
Stefan Roese5de85142008-06-26 17:36:39 +020079 mtdcr (uic3sr, 0xffffffff); /* clear all */
80 mtdcr (uic3er, 0x00000000); /* disable all */
81 mtdcr (uic3cr, 0x00000000); /* all non-critical */
82 mtdcr (uic3pr, 0xffffffff); /* per ref-board manual */
83 mtdcr (uic3tr, 0x00ff8c0f); /* per ref-board manual */
84 mtdcr (uic3vr, 0x00000001); /* int31 highest, base=0x000 */
85 mtdcr (uic3sr, 0xffffffff); /* clear all */
86
87 mtdcr (uic0sr, 0xfc000000); /* clear all */
88 mtdcr (uic0er, 0x00000000); /* disable all */
89 mtdcr (uic0cr, 0x00000000); /* all non-critical */
90 mtdcr (uic0pr, 0xfc000000); /* */
91 mtdcr (uic0tr, 0x00000000); /* */
92 mtdcr (uic0vr, 0x00000001); /* */
Stefan Roese1c2ce222006-11-27 14:12:17 +010093
Stefan Roesef16c1da2007-01-06 15:56:13 +010094 /* Setup shutdown/SSD empty interrupt as inputs */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020095 out32(GPIO0_TCR, in32(GPIO0_TCR) & ~(CONFIG_SYS_GPIO_SHUTDOWN | CONFIG_SYS_GPIO_SSD_EMPTY));
96 out32(GPIO0_ODR, in32(GPIO0_ODR) & ~(CONFIG_SYS_GPIO_SHUTDOWN | CONFIG_SYS_GPIO_SSD_EMPTY));
Stefan Roesef16c1da2007-01-06 15:56:13 +010097
Stefan Roese1c2ce222006-11-27 14:12:17 +010098 /* Setup GPIO/IRQ multiplexing */
Stefan Roesef16c1da2007-01-06 15:56:13 +010099 mtsdr(sdr_pfc0, 0x01a33e00);
Stefan Roese899620c2006-08-15 14:22:35 +0200100
101 return 0;
102}
103
Stefan Roese1c2ce222006-11-27 14:12:17 +0100104int last_stage_init(void)
105{
106 unsigned short reg;
107
108 /*
109 * Configure LED's of both Marvell 88E1111 PHY's
110 *
111 * This has to be done after the 4xx ethernet driver is loaded,
112 * so "last_stage_init()" is the right place.
113 */
114 miiphy_read("ppc_4xx_eth2", CONFIG_PHY2_ADDR, 0x18, &reg);
115 reg |= 0x0001;
116 miiphy_write("ppc_4xx_eth2", CONFIG_PHY2_ADDR, 0x18, reg);
117 miiphy_read("ppc_4xx_eth3", CONFIG_PHY3_ADDR, 0x18, &reg);
118 reg |= 0x0001;
119 miiphy_write("ppc_4xx_eth3", CONFIG_PHY3_ADDR, 0x18, reg);
120
121 return 0;
122}
123
124static int board_rev(void)
125{
Stefan Roese1c2ce222006-11-27 14:12:17 +0100126 /* Setup as input */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200127 out32(GPIO0_TCR, in32(GPIO0_TCR) & ~(CONFIG_SYS_GPIO_REV0 | CONFIG_SYS_GPIO_REV1));
128 out32(GPIO0_ODR, in32(GPIO0_ODR) & ~(CONFIG_SYS_GPIO_REV0 | CONFIG_SYS_GPIO_REV1));
Stefan Roese1c2ce222006-11-27 14:12:17 +0100129
Stefan Roesef16c1da2007-01-06 15:56:13 +0100130 return (in32(GPIO0_IR) >> 16) & 0x3;
Stefan Roese1c2ce222006-11-27 14:12:17 +0100131}
132
Stefan Roese899620c2006-08-15 14:22:35 +0200133int checkboard (void)
134{
135 char *s = getenv ("serial#");
136
137 printf ("Board: ALPR");
138 if (s != NULL) {
139 puts (", serial# ");
140 puts (s);
141 }
Stefan Roese1c2ce222006-11-27 14:12:17 +0100142 printf(" (Rev. %d)\n", board_rev());
Stefan Roese899620c2006-08-15 14:22:35 +0200143
144 return (0);
145}
146
Stefan Roese899620c2006-08-15 14:22:35 +0200147/*************************************************************************
148 * pci_pre_init
149 *
150 * This routine is called just prior to registering the hose and gives
151 * the board the opportunity to check things. Returning a value of zero
152 * indicates that things are bad & PCI initialization should be aborted.
153 *
154 * Different boards may wish to customize the pci controller structure
155 * (add regions, override default access routines, etc) or perform
156 * certain pre-initialization actions.
157 *
158 ************************************************************************/
Stefan Roese466fff12007-06-25 15:57:39 +0200159#if defined(CONFIG_PCI)
Stefan Roese899620c2006-08-15 14:22:35 +0200160int pci_pre_init(struct pci_controller * hose )
161{
162 unsigned long strap;
163
164 /*--------------------------------------------------------------------------+
165 * The ocotea board is always configured as the host & requires the
166 * PCI arbiter to be enabled.
167 *--------------------------------------------------------------------------*/
168 mfsdr(sdr_sdstp1, strap);
169 if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
170 printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
171 return 0;
172 }
173
174 /* FPGA Init */
175 alpr_fpga_init ();
176
177 return 1;
178}
Stefan Roese466fff12007-06-25 15:57:39 +0200179#endif /* defined(CONFIG_PCI) */
Stefan Roese899620c2006-08-15 14:22:35 +0200180
181/*************************************************************************
182 * pci_target_init
183 *
184 * The bootstrap configuration provides default settings for the pci
185 * inbound map (PIM). But the bootstrap config choices are limited and
186 * may not be sufficient for a given board.
187 *
188 ************************************************************************/
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200189#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
Stefan Roese899620c2006-08-15 14:22:35 +0200190void pci_target_init(struct pci_controller * hose )
191{
192 /*--------------------------------------------------------------------------+
193 * Disable everything
194 *--------------------------------------------------------------------------*/
195 out32r( PCIX0_PIM0SA, 0 ); /* disable */
196 out32r( PCIX0_PIM1SA, 0 ); /* disable */
197 out32r( PCIX0_PIM2SA, 0 ); /* disable */
198 out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
199
200 /*--------------------------------------------------------------------------+
201 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
202 * options to not support sizes such as 128/256 MB.
203 *--------------------------------------------------------------------------*/
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200204 out32r( PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE );
Stefan Roese899620c2006-08-15 14:22:35 +0200205 out32r( PCIX0_PIM0LAH, 0 );
206 out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
207
208 out32r( PCIX0_BAR0, 0 );
209
210 /*--------------------------------------------------------------------------+
211 * Program the board's subsystem id/vendor id
212 *--------------------------------------------------------------------------*/
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200213 out16r( PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID );
214 out16r( PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID );
Stefan Roese899620c2006-08-15 14:22:35 +0200215
216 out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
217}
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200218#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
Stefan Roese899620c2006-08-15 14:22:35 +0200219
220/*************************************************************************
221 * is_pci_host
222 *
223 * This routine is called to determine if a pci scan should be
224 * performed. With various hardware environments (especially cPCI and
225 * PPMC) it's insufficient to depend on the state of the arbiter enable
226 * bit in the strap register, or generic host/adapter assumptions.
227 *
228 * Rather than hard-code a bad assumption in the general 440 code, the
229 * 440 pci code requires the board to decide at runtime.
230 *
231 * Return 0 for adapter mode, non-zero for host (monarch) mode.
232 *
233 *
234 ************************************************************************/
235#if defined(CONFIG_PCI)
Stefan Roese1c2ce222006-11-27 14:12:17 +0100236
237static void wait_for_pci_ready(void)
238{
239 /*
240 * Configure EREADY as input
241 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200242 out32(GPIO0_TCR, in32(GPIO0_TCR) & ~CONFIG_SYS_GPIO_EREADY);
Stefan Roese1c2ce222006-11-27 14:12:17 +0100243 udelay(1000);
244
245 for (;;) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200246 if (in32(GPIO0_IR) & CONFIG_SYS_GPIO_EREADY)
Stefan Roese1c2ce222006-11-27 14:12:17 +0100247 return;
248 }
249
250}
251
Stefan Roese899620c2006-08-15 14:22:35 +0200252int is_pci_host(struct pci_controller *hose)
253{
Stefan Roese1c2ce222006-11-27 14:12:17 +0100254 wait_for_pci_ready();
255 return 1; /* return 1 for host controller */
Stefan Roese899620c2006-08-15 14:22:35 +0200256}
257#endif /* defined(CONFIG_PCI) */
258
259/*************************************************************************
260 * pci_master_init
261 *
262 ************************************************************************/
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200263#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT)
Stefan Roese899620c2006-08-15 14:22:35 +0200264void pci_master_init(struct pci_controller *hose)
265{
Stefan Roese899620c2006-08-15 14:22:35 +0200266 /*--------------------------------------------------------------------------+
267 | PowerPC440 PCI Master configuration.
268 | Map PLB/processor addresses to PCI memory space.
269 | PLB address 0xA0000000-0xCFFFFFFF ==> PCI address 0x80000000-0xCFFFFFFF
270 | Use byte reversed out routines to handle endianess.
271 | Make this region non-prefetchable.
272 +--------------------------------------------------------------------------*/
273 out32r( PCIX0_POM0SA, 0 ); /* disable */
274 out32r( PCIX0_POM1SA, 0 ); /* disable */
275 out32r( PCIX0_POM2SA, 0 ); /* disable */
276
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200277 out32r(PCIX0_POM0LAL, CONFIG_SYS_PCI_MEMBASE); /* PMM0 Local Address */
Stefan Roese899620c2006-08-15 14:22:35 +0200278 out32r(PCIX0_POM0LAH, 0x00000003); /* PMM0 Local Address */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200279 out32r(PCIX0_POM0PCIAL, CONFIG_SYS_PCI_MEMBASE); /* PMM0 PCI Low Address */
Stefan Roese899620c2006-08-15 14:22:35 +0200280 out32r(PCIX0_POM0PCIAH, 0x00000000); /* PMM0 PCI High Address */
281 out32r(PCIX0_POM0SA, ~(0x10000000 - 1) | 1); /* 256MB + enable region */
282
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200283 out32r(PCIX0_POM1LAL, CONFIG_SYS_PCI_MEMBASE2); /* PMM0 Local Address */
Stefan Roese899620c2006-08-15 14:22:35 +0200284 out32r(PCIX0_POM1LAH, 0x00000003); /* PMM0 Local Address */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200285 out32r(PCIX0_POM1PCIAL, CONFIG_SYS_PCI_MEMBASE2); /* PMM0 PCI Low Address */
Stefan Roese899620c2006-08-15 14:22:35 +0200286 out32r(PCIX0_POM1PCIAH, 0x00000000); /* PMM0 PCI High Address */
287 out32r(PCIX0_POM1SA, ~(0x10000000 - 1) | 1); /* 256MB + enable region */
Stefan Roese899620c2006-08-15 14:22:35 +0200288}
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200289#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT) */
Stefan Roese899620c2006-08-15 14:22:35 +0200290
291#ifdef CONFIG_POST
292/*
293 * Returns 1 if keys pressed to start the power-on long-running tests
294 * Called from board_init_f().
295 */
296int post_hotkeys_pressed(void)
297{
298
299 return (ctrlc());
300}
301#endif