3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
27 #include <fdt_support.h>
28 #include <spd_sdram.h>
29 #include <ppc4xx_enet.h>
31 #include <asm/processor.h>
33 DECLARE_GLOBAL_DATA_PTR;
35 extern int alpr_fpga_init(void);
37 int board_early_init_f (void)
39 /*-------------------------------------------------------------------------
40 * Initialize EBC CONFIG
41 *-------------------------------------------------------------------------*/
42 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);
48 /*--------------------------------------------------------------------
49 * Setup the interrupt controller polarities, triggers, etc.
50 *-------------------------------------------------------------------*/
51 mtdcr (uic0sr, 0xffffffff); /* clear all */
52 mtdcr (uic0er, 0x00000000); /* disable all */
53 mtdcr (uic0cr, 0x00000009); /* SMI & UIC1 crit are critical */
54 mtdcr (uic0pr, 0xfffffe03); /* per manual */
55 mtdcr (uic0tr, 0x01c00000); /* per manual */
56 mtdcr (uic0vr, 0x00000001); /* int31 highest, base=0x000 */
57 mtdcr (uic0sr, 0xffffffff); /* clear all */
59 mtdcr (uic1sr, 0xffffffff); /* clear all */
60 mtdcr (uic1er, 0x00000000); /* disable all */
61 mtdcr (uic1cr, 0x00000000); /* all non-critical */
62 mtdcr (uic1pr, 0xffffe0ff); /* per ref-board manual */
63 mtdcr (uic1tr, 0x00ffc000); /* per ref-board manual */
64 mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */
65 mtdcr (uic1sr, 0xffffffff); /* clear all */
67 mtdcr (uic2sr, 0xffffffff); /* clear all */
68 mtdcr (uic2er, 0x00000000); /* disable all */
69 mtdcr (uic2cr, 0x00000000); /* all non-critical */
70 mtdcr (uic2pr, 0xffffffff); /* per ref-board manual */
71 mtdcr (uic2tr, 0x00ff8c0f); /* per ref-board manual */
72 mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */
73 mtdcr (uic2sr, 0xffffffff); /* clear all */
75 mtdcr (uicb0sr, 0xfc000000); /* clear all */
76 mtdcr (uicb0er, 0x00000000); /* disable all */
77 mtdcr (uicb0cr, 0x00000000); /* all non-critical */
78 mtdcr (uicb0pr, 0xfc000000); /* */
79 mtdcr (uicb0tr, 0x00000000); /* */
80 mtdcr (uicb0vr, 0x00000001); /* */
82 /* Setup shutdown/SSD empty interrupt as inputs */
83 out32(GPIO0_TCR, in32(GPIO0_TCR) & ~(CFG_GPIO_SHUTDOWN | CFG_GPIO_SSD_EMPTY));
84 out32(GPIO0_ODR, in32(GPIO0_ODR) & ~(CFG_GPIO_SHUTDOWN | CFG_GPIO_SSD_EMPTY));
86 /* Setup GPIO/IRQ multiplexing */
87 mtsdr(sdr_pfc0, 0x01a33e00);
92 int last_stage_init(void)
97 * Configure LED's of both Marvell 88E1111 PHY's
99 * This has to be done after the 4xx ethernet driver is loaded,
100 * so "last_stage_init()" is the right place.
102 miiphy_read("ppc_4xx_eth2", CONFIG_PHY2_ADDR, 0x18, ®);
104 miiphy_write("ppc_4xx_eth2", CONFIG_PHY2_ADDR, 0x18, reg);
105 miiphy_read("ppc_4xx_eth3", CONFIG_PHY3_ADDR, 0x18, ®);
107 miiphy_write("ppc_4xx_eth3", CONFIG_PHY3_ADDR, 0x18, reg);
112 static int board_rev(void)
115 out32(GPIO0_TCR, in32(GPIO0_TCR) & ~(CFG_GPIO_REV0 | CFG_GPIO_REV1));
116 out32(GPIO0_ODR, in32(GPIO0_ODR) & ~(CFG_GPIO_REV0 | CFG_GPIO_REV1));
118 return (in32(GPIO0_IR) >> 16) & 0x3;
121 int checkboard (void)
123 char *s = getenv ("serial#");
125 printf ("Board: ALPR");
130 printf(" (Rev. %d)\n", board_rev());
135 /*************************************************************************
138 * This routine is called just prior to registering the hose and gives
139 * the board the opportunity to check things. Returning a value of zero
140 * indicates that things are bad & PCI initialization should be aborted.
142 * Different boards may wish to customize the pci controller structure
143 * (add regions, override default access routines, etc) or perform
144 * certain pre-initialization actions.
146 ************************************************************************/
147 #if defined(CONFIG_PCI)
148 int pci_pre_init(struct pci_controller * hose )
152 /*--------------------------------------------------------------------------+
153 * The ocotea board is always configured as the host & requires the
154 * PCI arbiter to be enabled.
155 *--------------------------------------------------------------------------*/
156 mfsdr(sdr_sdstp1, strap);
157 if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
158 printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
167 #endif /* defined(CONFIG_PCI) */
169 /*************************************************************************
172 * The bootstrap configuration provides default settings for the pci
173 * inbound map (PIM). But the bootstrap config choices are limited and
174 * may not be sufficient for a given board.
176 ************************************************************************/
177 #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
178 void pci_target_init(struct pci_controller * hose )
180 /*--------------------------------------------------------------------------+
182 *--------------------------------------------------------------------------*/
183 out32r( PCIX0_PIM0SA, 0 ); /* disable */
184 out32r( PCIX0_PIM1SA, 0 ); /* disable */
185 out32r( PCIX0_PIM2SA, 0 ); /* disable */
186 out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
188 /*--------------------------------------------------------------------------+
189 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
190 * options to not support sizes such as 128/256 MB.
191 *--------------------------------------------------------------------------*/
192 out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
193 out32r( PCIX0_PIM0LAH, 0 );
194 out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
196 out32r( PCIX0_BAR0, 0 );
198 /*--------------------------------------------------------------------------+
199 * Program the board's subsystem id/vendor id
200 *--------------------------------------------------------------------------*/
201 out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
202 out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );
204 out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
206 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
208 /*************************************************************************
211 * This routine is called to determine if a pci scan should be
212 * performed. With various hardware environments (especially cPCI and
213 * PPMC) it's insufficient to depend on the state of the arbiter enable
214 * bit in the strap register, or generic host/adapter assumptions.
216 * Rather than hard-code a bad assumption in the general 440 code, the
217 * 440 pci code requires the board to decide at runtime.
219 * Return 0 for adapter mode, non-zero for host (monarch) mode.
222 ************************************************************************/
223 #if defined(CONFIG_PCI)
225 static void wait_for_pci_ready(void)
228 * Configure EREADY as input
230 out32(GPIO0_TCR, in32(GPIO0_TCR) & ~CFG_GPIO_EREADY);
234 if (in32(GPIO0_IR) & CFG_GPIO_EREADY)
240 int is_pci_host(struct pci_controller *hose)
242 wait_for_pci_ready();
243 return 1; /* return 1 for host controller */
245 #endif /* defined(CONFIG_PCI) */
247 /*************************************************************************
250 ************************************************************************/
251 #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
252 void pci_master_init(struct pci_controller *hose)
254 /*--------------------------------------------------------------------------+
255 | PowerPC440 PCI Master configuration.
256 | Map PLB/processor addresses to PCI memory space.
257 | PLB address 0xA0000000-0xCFFFFFFF ==> PCI address 0x80000000-0xCFFFFFFF
258 | Use byte reversed out routines to handle endianess.
259 | Make this region non-prefetchable.
260 +--------------------------------------------------------------------------*/
261 out32r( PCIX0_POM0SA, 0 ); /* disable */
262 out32r( PCIX0_POM1SA, 0 ); /* disable */
263 out32r( PCIX0_POM2SA, 0 ); /* disable */
265 out32r(PCIX0_POM0LAL, CFG_PCI_MEMBASE); /* PMM0 Local Address */
266 out32r(PCIX0_POM0LAH, 0x00000003); /* PMM0 Local Address */
267 out32r(PCIX0_POM0PCIAL, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */
268 out32r(PCIX0_POM0PCIAH, 0x00000000); /* PMM0 PCI High Address */
269 out32r(PCIX0_POM0SA, ~(0x10000000 - 1) | 1); /* 256MB + enable region */
271 out32r(PCIX0_POM1LAL, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
272 out32r(PCIX0_POM1LAH, 0x00000003); /* PMM0 Local Address */
273 out32r(PCIX0_POM1PCIAL, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */
274 out32r(PCIX0_POM1PCIAH, 0x00000000); /* PMM0 PCI High Address */
275 out32r(PCIX0_POM1SA, ~(0x10000000 - 1) | 1); /* 256MB + enable region */
277 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
281 * Returns 1 if keys pressed to start the power-on long-running tests
282 * Called from board_init_f().
284 int post_hotkeys_pressed(void)
291 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
292 void ft_board_setup(void *blob, bd_t *bd)
297 ft_cpu_setup(blob, bd);
299 /* Fixup NOR mapping */
300 val[0] = 0; /* chip select number */
301 val[1] = 0; /* always 0 */
302 val[2] = gd->bd->bi_flashstart;
303 val[3] = gd->bd->bi_flashsize;
304 rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
305 val, sizeof(val), 1);
307 printf("Unable to update property NOR mapping, err=%s\n",
310 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */