3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #include <fdt_support.h>
26 #include <asm/processor.h>
29 #include <asm/4xx_pcie.h>
32 extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
34 DECLARE_GLOBAL_DATA_PTR;
36 #define CONFIG_SYS_BCSR3_PCIE 0x10
38 #define BOARD_CANYONLANDS_PCIE 1
39 #define BOARD_CANYONLANDS_SATA 2
40 #define BOARD_GLACIER 3
41 #define BOARD_ARCHES 4
44 * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
45 * board specific values.
47 #if defined(CONFIG_ARCHES)
48 u32 ddr_wrdtr(u32 default_val) {
49 return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_0_DEG | 0x823);
52 u32 ddr_wrdtr(u32 default_val) {
53 return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
56 u32 ddr_clktr(u32 default_val) {
57 return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
61 #if defined(CONFIG_ARCHES)
63 * FPGA read/write helper macros
65 static inline int board_fpga_read(int offset)
69 data = in_8((void *)(CONFIG_SYS_FPGA_BASE + offset));
74 static inline void board_fpga_write(int offset, int data)
76 out_8((void *)(CONFIG_SYS_FPGA_BASE + offset), data);
80 * CPLD read/write helper macros
82 static inline int board_cpld_read(int offset)
86 out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
87 data = in_8((void *)(CONFIG_SYS_CPLD_DATA));
92 static inline void board_cpld_write(int offset, int data)
94 out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
95 out_8((void *)(CONFIG_SYS_CPLD_DATA), data);
98 static int pvr_460ex(void)
102 if ((pvr == PVR_460EX_RA) || (pvr == PVR_460EX_SE_RA) ||
103 (pvr == PVR_460EX_RB))
108 #endif /* defined(CONFIG_ARCHES) */
110 int board_early_init_f(void)
112 #if !defined(CONFIG_ARCHES)
117 * Setup the interrupt controller polarities, triggers, etc.
119 mtdcr(uic0sr, 0xffffffff); /* clear all */
120 mtdcr(uic0er, 0x00000000); /* disable all */
121 mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
122 mtdcr(uic0pr, 0xffffffff); /* per ref-board manual */
123 mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
124 mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */
125 mtdcr(uic0sr, 0xffffffff); /* clear all */
127 mtdcr(uic1sr, 0xffffffff); /* clear all */
128 mtdcr(uic1er, 0x00000000); /* disable all */
129 mtdcr(uic1cr, 0x00000000); /* all non-critical */
130 mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */
131 mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
132 mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */
133 mtdcr(uic1sr, 0xffffffff); /* clear all */
135 mtdcr(uic2sr, 0xffffffff); /* clear all */
136 mtdcr(uic2er, 0x00000000); /* disable all */
137 mtdcr(uic2cr, 0x00000000); /* all non-critical */
138 mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */
139 mtdcr(uic2tr, 0x00000000); /* per ref-board manual */
140 mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */
141 mtdcr(uic2sr, 0xffffffff); /* clear all */
143 mtdcr(uic3sr, 0xffffffff); /* clear all */
144 mtdcr(uic3er, 0x00000000); /* disable all */
145 mtdcr(uic3cr, 0x00000000); /* all non-critical */
146 mtdcr(uic3pr, 0xffffffff); /* per ref-board manual */
147 mtdcr(uic3tr, 0x00000000); /* per ref-board manual */
148 mtdcr(uic3vr, 0x00000000); /* int31 highest, base=0x000 */
149 mtdcr(uic3sr, 0xffffffff); /* clear all */
151 #if !defined(CONFIG_ARCHES)
152 /* SDR Setting - enable NDFC */
153 mfsdr(SDR0_CUST0, sdr0_cust0);
154 sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
155 SDR0_CUST0_NDFC_ENABLE |
156 SDR0_CUST0_NDFC_BW_8_BIT |
157 SDR0_CUST0_NDFC_ARE_MASK |
158 SDR0_CUST0_NDFC_BAC_ENCODE(3) |
159 (0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
160 mtsdr(SDR0_CUST0, sdr0_cust0);
164 * Configure PFC (Pin Function Control) registers
167 mtsdr(SDR0_PFC1, 0x00040000);
169 /* Enable PCI host functionality in SDR0_PCI0 */
170 mtsdr(SDR0_PCI0, 0xe0000000);
172 #if !defined(CONFIG_ARCHES)
173 /* Enable ethernet and take out of reset */
174 out_8((void *)CONFIG_SYS_BCSR_BASE + 6, 0);
176 /* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */
177 out_8((void *)CONFIG_SYS_BCSR_BASE + 5, 0);
179 /* Enable USB host & USB-OTG */
180 out_8((void *)CONFIG_SYS_BCSR_BASE + 7, 0);
182 mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
184 /* Setup PLB4-AHB bridge based on the system address map */
185 mtdcr(AHB_TOP, 0x8000004B);
186 mtdcr(AHB_BOT, 0x8000004B);
190 * Configure USB-STP pins as alternate and not GPIO
191 * It seems to be neccessary to configure the STP pins as GPIO
192 * input at powerup (perhaps while USB reset is asserted). So
193 * we configure those pins to their "real" function now.
195 gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
196 gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
203 #if !defined(CONFIG_ARCHES)
204 static void canyonlands_sata_init(int board_type)
208 if (board_type == BOARD_CANYONLANDS_SATA) {
209 /* Put SATA in reset */
210 SDR_WRITE(SDR0_SRST1, 0x00020001);
212 /* Set the phy for SATA, not PCI-E port 0 */
213 reg = SDR_READ(PESDR0_PHY_CTL_RST);
214 SDR_WRITE(PESDR0_PHY_CTL_RST, (reg & 0xeffffffc) | 0x00000001);
215 reg = SDR_READ(PESDR0_L0CLK);
216 SDR_WRITE(PESDR0_L0CLK, (reg & 0xfffffff8) | 0x00000007);
217 SDR_WRITE(PESDR0_L0CDRCTL, 0x00003111);
218 SDR_WRITE(PESDR0_L0DRV, 0x00000104);
220 /* Bring SATA out of reset */
221 SDR_WRITE(SDR0_SRST1, 0x00000000);
224 #endif /* !defined(CONFIG_ARCHES) */
226 int get_cpu_num(void)
228 int cpu = NA_OR_UNKNOWN_CPU;
230 #if defined(CONFIG_ARCHES)
233 cpu_num = board_fpga_read(0x3);
235 /* sanity check; assume cpu numbering starts and increments from 0 */
236 if ((cpu_num >= 0) && (cpu_num < CONFIG_BD_NUM_CPUS))
243 #if !defined(CONFIG_ARCHES)
246 char *s = getenv("serial#");
249 printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
250 if (in_8((void *)(CONFIG_SYS_BCSR_BASE + 3)) & CONFIG_SYS_BCSR3_PCIE)
251 gd->board_type = BOARD_CANYONLANDS_PCIE;
253 gd->board_type = BOARD_CANYONLANDS_SATA;
255 printf("Board: Glacier - AMCC PPC460GT Evaluation Board");
256 gd->board_type = BOARD_GLACIER;
259 switch (gd->board_type) {
260 case BOARD_CANYONLANDS_PCIE:
265 case BOARD_CANYONLANDS_SATA:
266 puts(", 1*PCIe/1*SATA");
270 printf(", Rev. %X", in_8((void *)(CONFIG_SYS_BCSR_BASE + 0)));
278 canyonlands_sata_init(gd->board_type);
283 #else /* defined(CONFIG_ARCHES) */
287 char *s = getenv("serial#");
289 printf("Board: Arches - AMCC DUAL PPC460GT Reference Design\n");
290 printf(" Revision %02x.%02x ",
291 board_fpga_read(0x0), board_fpga_read(0x1));
293 gd->board_type = BOARD_ARCHES;
295 /* Only CPU0 has access to CPLD registers */
296 if (get_cpu_num() == 0) {
297 u8 cfg_sw = board_cpld_read(0x1);
298 printf("(FPGA=%02x, CPLD=%02x)\n",
299 board_fpga_read(0x2), board_cpld_read(0x0));
300 printf(" Configuration Switch %d%d%d%d\n",
301 ((cfg_sw >> 3) & 0x01),
302 ((cfg_sw >> 2) & 0x01),
303 ((cfg_sw >> 1) & 0x01),
304 ((cfg_sw >> 0) & 0x01));
306 printf("(FPGA=%02x, CPLD=xx)\n", board_fpga_read(0x2));
310 printf(" Serial# %s\n", s);
314 #endif /* !defined(CONFIG_ARCHES) */
316 #if defined(CONFIG_NAND_U_BOOT)
318 * NAND booting U-Boot version uses a fixed initialization, since the whole
319 * I2C SPD DIMM autodetection/calibration doesn't fit into the 4k of boot
322 phys_size_t initdram(int board_type)
324 return CONFIG_SYS_MBYTES_SDRAM << 20;
331 * The bootstrap configuration provides default settings for the pci
332 * inbound map (PIM). But the bootstrap config choices are limited and
333 * may not be sufficient for a given board.
335 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
336 void pci_target_init(struct pci_controller * hose )
341 out_le32((void *)PCIX0_PIM0SA, 0); /* disable */
342 out_le32((void *)PCIX0_PIM1SA, 0); /* disable */
343 out_le32((void *)PCIX0_PIM2SA, 0); /* disable */
344 out_le32((void *)PCIX0_EROMBA, 0); /* disable expansion rom */
347 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440
348 * strapping options to not support sizes such as 128/256 MB.
350 out_le32((void *)PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE);
351 out_le32((void *)PCIX0_PIM0LAH, 0);
352 out_le32((void *)PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1);
353 out_le32((void *)PCIX0_BAR0, 0);
356 * Program the board's subsystem id/vendor id
358 out_le16((void *)PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID);
359 out_le16((void *)PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID);
361 out_le16((void *)PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY);
363 #endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
365 #if defined(CONFIG_PCI)
369 * This routine is called to determine if a pci scan should be
370 * performed. With various hardware environments (especially cPCI and
371 * PPMC) it's insufficient to depend on the state of the arbiter enable
372 * bit in the strap register, or generic host/adapter assumptions.
374 * Rather than hard-code a bad assumption in the general 440 code, the
375 * 440 pci code requires the board to decide at runtime.
377 * Return 0 for adapter mode, non-zero for host (monarch) mode.
379 int is_pci_host(struct pci_controller *hose)
381 /* Board is always configured as host. */
385 static struct pci_controller pcie_hose[2] = {{0},{0}};
387 void pcie_setup_hoses(int busno)
389 struct pci_controller *hose;
397 * assume we're called after the PCIX hose is initialized, which takes
398 * bus ID 0 and therefore start numbering PCIe's from 1.
403 * Canyonlands with SATA enabled has only one PCIe slot
406 if (gd->board_type == BOARD_CANYONLANDS_SATA)
411 for (i = start; i <= 1; i++) {
414 ret = ppc4xx_init_pcie_endport(i);
416 ret = ppc4xx_init_pcie_rootport(i);
418 printf("PCIE%d: initialization as %s failed\n", i,
419 is_end_point(i) ? "endpoint" : "root-complex");
423 hose = &pcie_hose[i];
424 hose->first_busno = bus;
425 hose->last_busno = bus;
426 hose->current_busno = bus;
428 /* setup mem resource */
429 pci_set_region(hose->regions + 0,
430 CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
431 CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
432 CONFIG_SYS_PCIE_MEMSIZE,
434 hose->region_count = 1;
435 pci_register_hose(hose);
437 if (is_end_point(i)) {
438 ppc4xx_setup_pcie_endpoint(hose, i);
440 * Reson for no scanning is endpoint can not generate
441 * upstream configuration accesses.
444 ppc4xx_setup_pcie_rootpoint(hose, i);
445 env = getenv ("pciscandelay");
447 delay = simple_strtoul(env, NULL, 10);
449 printf("Warning, expect noticable delay before "
450 "PCIe scan due to 'pciscandelay' value!\n");
451 mdelay(delay * 1000);
455 * Config access can only go down stream
457 hose->last_busno = pci_hose_scan(hose);
458 bus = hose->last_busno + 1;
462 #endif /* CONFIG_PCI */
464 int board_early_init_r (void)
467 * Canyonlands has 64MBytes of NOR FLASH (Spansion 29GL512), but the
468 * boot EBC mapping only supports a maximum of 16MBytes
469 * (4.ff00.0000 - 4.ffff.ffff).
470 * To solve this problem, the FLASH has to get remapped to another
471 * EBC address which accepts bigger regions:
473 * 0xfc00.0000 -> 4.cc00.0000
476 /* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */
477 #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
478 mtebc(pb3cr, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
480 mtebc(pb0cr, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
483 /* Remove TLB entry of boot EBC mapping */
484 remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20);
486 /* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */
487 program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE,
491 * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address
492 * 0xfc00.0000 is possible
496 * Clear potential errors resulting from auto-calibration.
497 * If not done, then we could get an interrupt later on when
498 * exceptions are enabled.
500 set_mcsr(get_mcsr());
505 #if !defined(CONFIG_ARCHES)
506 int misc_init_r(void)
513 * Set EMAC mode/configuration (GMII, SGMII, RGMII...).
514 * This is board specific, so let's do it here.
516 mfsdr(SDR0_ETH_CFG, eth_cfg);
517 /* disable SGMII mode */
518 eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE |
519 SDR0_ETH_CFG_SGMII1_ENABLE |
520 SDR0_ETH_CFG_SGMII0_ENABLE);
521 /* Set the for 2 RGMII mode */
522 /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
523 eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL;
525 eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
527 eth_cfg &= ~SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
528 mtsdr(SDR0_ETH_CFG, eth_cfg);
531 * The AHB Bridge core is held in reset after power-on or reset
534 mfsdr(SDR0_SRST1, sdr0_srst1);
535 sdr0_srst1 &= ~SDR0_SRST1_AHB;
536 mtsdr(SDR0_SRST1, sdr0_srst1);
540 * Disable square wave output: Batterie will be drained
541 * quickly, when this output is not disabled
543 val = i2c_reg_read(CONFIG_SYS_I2C_RTC_ADDR, 0xa);
545 i2c_reg_write(CONFIG_SYS_I2C_RTC_ADDR, 0xa, val);
550 #else /* defined(CONFIG_ARCHES) */
552 int misc_init_r(void)
559 * Set EMAC mode/configuration (GMII, SGMII, RGMII...).
560 * This is board specific, so let's do it here.
563 /* enable SGMII mode */
564 eth_cfg |= (SDR0_ETH_CFG_SGMII0_ENABLE |
565 SDR0_ETH_CFG_SGMII1_ENABLE |
566 SDR0_ETH_CFG_SGMII2_ENABLE);
568 /* Set EMAC for MDIO */
569 eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0;
571 /* bypass the TAHOE0/TAHOE1 cores for U-Boot */
572 eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
574 mtsdr(SDR0_ETH_CFG, eth_cfg);
576 /* reset all SGMII interfaces */
577 mfsdr(SDR0_SRST1, reg);
578 reg |= (SDR0_SRST1_SGMII0 | SDR0_SRST1_SGMII1 | SDR0_SRST1_SGMII2);
579 mtsdr(SDR0_SRST1, reg);
580 mtsdr(SDR0_ETH_STS, 0xFFFFFFFF);
581 mtsdr(SDR0_SRST1, 0x00000000);
584 mfsdr(SDR0_ETH_PLL, eth_pll);
585 } while (!(eth_pll & SDR0_ETH_PLL_PLLLOCK));
589 #endif /* !defined(CONFIG_ARCHES) */
591 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
592 extern void __ft_board_setup(void *blob, bd_t *bd);
594 void ft_board_setup(void *blob, bd_t *bd)
596 __ft_board_setup(blob, bd);
598 if (gd->board_type == BOARD_CANYONLANDS_SATA) {
600 * When SATA is selected we need to disable the first PCIe
601 * node in the device tree, so that Linux doesn't initialize
604 fdt_find_and_setprop(blob, "/plb/pciex@d00000000", "status",
605 "disabled", sizeof("disabled"), 1);
608 if (gd->board_type == BOARD_CANYONLANDS_PCIE) {
610 * When PCIe is selected we need to disable the SATA
611 * node in the device tree, so that Linux doesn't initialize
614 fdt_find_and_setprop(blob, "/plb/sata@bffd1000", "status",
615 "disabled", sizeof("disabled"), 1);
618 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */