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>
31 #include <asm/errno.h>
33 extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
35 DECLARE_GLOBAL_DATA_PTR;
37 #define CONFIG_SYS_BCSR3_PCIE 0x10
39 #define BOARD_CANYONLANDS_PCIE 1
40 #define BOARD_CANYONLANDS_SATA 2
41 #define BOARD_GLACIER 3
42 #define BOARD_ARCHES 4
45 * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
46 * board specific values.
48 #if defined(CONFIG_ARCHES)
49 u32 ddr_wrdtr(u32 default_val) {
50 return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_0_DEG | 0x823);
53 u32 ddr_wrdtr(u32 default_val) {
54 return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
57 u32 ddr_clktr(u32 default_val) {
58 return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
62 #if defined(CONFIG_ARCHES)
64 * FPGA read/write helper macros
66 static inline int board_fpga_read(int offset)
70 data = in_8((void *)(CONFIG_SYS_FPGA_BASE + offset));
75 static inline void board_fpga_write(int offset, int data)
77 out_8((void *)(CONFIG_SYS_FPGA_BASE + offset), data);
81 * CPLD read/write helper macros
83 static inline int board_cpld_read(int offset)
87 out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
88 data = in_8((void *)(CONFIG_SYS_CPLD_DATA));
93 static inline void board_cpld_write(int offset, int data)
95 out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
96 out_8((void *)(CONFIG_SYS_CPLD_DATA), data);
99 static int pvr_460ex(void)
103 if ((pvr == PVR_460EX_RA) || (pvr == PVR_460EX_SE_RA) ||
104 (pvr == PVR_460EX_RB))
109 #endif /* defined(CONFIG_ARCHES) */
111 int board_early_init_f(void)
113 #if !defined(CONFIG_ARCHES)
118 * Setup the interrupt controller polarities, triggers, etc.
120 mtdcr(UIC0SR, 0xffffffff); /* clear all */
121 mtdcr(UIC0ER, 0x00000000); /* disable all */
122 mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */
123 mtdcr(UIC0PR, 0xffffffff); /* per ref-board manual */
124 mtdcr(UIC0TR, 0x00000000); /* per ref-board manual */
125 mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */
126 mtdcr(UIC0SR, 0xffffffff); /* clear all */
128 mtdcr(UIC1SR, 0xffffffff); /* clear all */
129 mtdcr(UIC1ER, 0x00000000); /* disable all */
130 mtdcr(UIC1CR, 0x00000000); /* all non-critical */
131 mtdcr(UIC1PR, 0xffffffff); /* per ref-board manual */
132 mtdcr(UIC1TR, 0x00000000); /* per ref-board manual */
133 mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */
134 mtdcr(UIC1SR, 0xffffffff); /* clear all */
136 mtdcr(UIC2SR, 0xffffffff); /* clear all */
137 mtdcr(UIC2ER, 0x00000000); /* disable all */
138 mtdcr(UIC2CR, 0x00000000); /* all non-critical */
139 mtdcr(UIC2PR, 0xffffffff); /* per ref-board manual */
140 mtdcr(UIC2TR, 0x00000000); /* per ref-board manual */
141 mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */
142 mtdcr(UIC2SR, 0xffffffff); /* clear all */
144 mtdcr(UIC3SR, 0xffffffff); /* clear all */
145 mtdcr(UIC3ER, 0x00000000); /* disable all */
146 mtdcr(UIC3CR, 0x00000000); /* all non-critical */
147 mtdcr(UIC3PR, 0xffffffff); /* per ref-board manual */
148 mtdcr(UIC3TR, 0x00000000); /* per ref-board manual */
149 mtdcr(UIC3VR, 0x00000000); /* int31 highest, base=0x000 */
150 mtdcr(UIC3SR, 0xffffffff); /* clear all */
152 #if !defined(CONFIG_ARCHES)
153 /* SDR Setting - enable NDFC */
154 mfsdr(SDR0_CUST0, sdr0_cust0);
155 sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
156 SDR0_CUST0_NDFC_ENABLE |
157 SDR0_CUST0_NDFC_BW_8_BIT |
158 SDR0_CUST0_NDFC_ARE_MASK |
159 SDR0_CUST0_NDFC_BAC_ENCODE(3) |
160 (0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
161 mtsdr(SDR0_CUST0, sdr0_cust0);
165 * Configure PFC (Pin Function Control) registers
168 mtsdr(SDR0_PFC1, 0x00040000);
170 /* Enable PCI host functionality in SDR0_PCI0 */
171 mtsdr(SDR0_PCI0, 0xe0000000);
173 #if !defined(CONFIG_ARCHES)
174 /* Enable ethernet and take out of reset */
175 out_8((void *)CONFIG_SYS_BCSR_BASE + 6, 0);
177 /* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */
178 out_8((void *)CONFIG_SYS_BCSR_BASE + 5, 0);
180 /* Enable USB host & USB-OTG */
181 out_8((void *)CONFIG_SYS_BCSR_BASE + 7, 0);
183 mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
185 /* Setup PLB4-AHB bridge based on the system address map */
186 mtdcr(AHB_TOP, 0x8000004B);
187 mtdcr(AHB_BOT, 0x8000004B);
191 * Configure USB-STP pins as alternate and not GPIO
192 * It seems to be neccessary to configure the STP pins as GPIO
193 * input at powerup (perhaps while USB reset is asserted). So
194 * we configure those pins to their "real" function now.
196 gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
197 gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
204 #if !defined(CONFIG_ARCHES)
205 static void canyonlands_sata_init(int board_type)
209 if (board_type == BOARD_CANYONLANDS_SATA) {
210 /* Put SATA in reset */
211 SDR_WRITE(SDR0_SRST1, 0x00020001);
213 /* Set the phy for SATA, not PCI-E port 0 */
214 reg = SDR_READ(PESDR0_PHY_CTL_RST);
215 SDR_WRITE(PESDR0_PHY_CTL_RST, (reg & 0xeffffffc) | 0x00000001);
216 reg = SDR_READ(PESDR0_L0CLK);
217 SDR_WRITE(PESDR0_L0CLK, (reg & 0xfffffff8) | 0x00000007);
218 SDR_WRITE(PESDR0_L0CDRCTL, 0x00003111);
219 SDR_WRITE(PESDR0_L0DRV, 0x00000104);
221 /* Bring SATA out of reset */
222 SDR_WRITE(SDR0_SRST1, 0x00000000);
225 #endif /* !defined(CONFIG_ARCHES) */
227 int get_cpu_num(void)
229 int cpu = NA_OR_UNKNOWN_CPU;
231 #if defined(CONFIG_ARCHES)
234 cpu_num = board_fpga_read(0x3);
236 /* sanity check; assume cpu numbering starts and increments from 0 */
237 if ((cpu_num >= 0) && (cpu_num < CONFIG_BD_NUM_CPUS))
244 #if !defined(CONFIG_ARCHES)
247 char *s = getenv("serial#");
250 printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
251 if (in_8((void *)(CONFIG_SYS_BCSR_BASE + 3)) & CONFIG_SYS_BCSR3_PCIE)
252 gd->board_type = BOARD_CANYONLANDS_PCIE;
254 gd->board_type = BOARD_CANYONLANDS_SATA;
256 printf("Board: Glacier - AMCC PPC460GT Evaluation Board");
257 gd->board_type = BOARD_GLACIER;
260 switch (gd->board_type) {
261 case BOARD_CANYONLANDS_PCIE:
266 case BOARD_CANYONLANDS_SATA:
267 puts(", 1*PCIe/1*SATA");
271 printf(", Rev. %X", in_8((void *)(CONFIG_SYS_BCSR_BASE + 0)));
279 canyonlands_sata_init(gd->board_type);
284 #else /* defined(CONFIG_ARCHES) */
288 char *s = getenv("serial#");
290 printf("Board: Arches - AMCC DUAL PPC460GT Reference Design\n");
291 printf(" Revision %02x.%02x ",
292 board_fpga_read(0x0), board_fpga_read(0x1));
294 gd->board_type = BOARD_ARCHES;
296 /* Only CPU0 has access to CPLD registers */
297 if (get_cpu_num() == 0) {
298 u8 cfg_sw = board_cpld_read(0x1);
299 printf("(FPGA=%02x, CPLD=%02x)\n",
300 board_fpga_read(0x2), board_cpld_read(0x0));
301 printf(" Configuration Switch %d%d%d%d\n",
302 ((cfg_sw >> 3) & 0x01),
303 ((cfg_sw >> 2) & 0x01),
304 ((cfg_sw >> 1) & 0x01),
305 ((cfg_sw >> 0) & 0x01));
307 printf("(FPGA=%02x, CPLD=xx)\n", board_fpga_read(0x2));
311 printf(" Serial# %s\n", s);
315 #endif /* !defined(CONFIG_ARCHES) */
317 #if defined(CONFIG_NAND_U_BOOT)
319 * NAND booting U-Boot version uses a fixed initialization, since the whole
320 * I2C SPD DIMM autodetection/calibration doesn't fit into the 4k of boot
323 phys_size_t initdram(int board_type)
325 return CONFIG_SYS_MBYTES_SDRAM << 20;
332 * The bootstrap configuration provides default settings for the pci
333 * inbound map (PIM). But the bootstrap config choices are limited and
334 * may not be sufficient for a given board.
336 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
337 void pci_target_init(struct pci_controller * hose )
342 out_le32((void *)PCIX0_PIM0SA, 0); /* disable */
343 out_le32((void *)PCIX0_PIM1SA, 0); /* disable */
344 out_le32((void *)PCIX0_PIM2SA, 0); /* disable */
345 out_le32((void *)PCIX0_EROMBA, 0); /* disable expansion rom */
348 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440
349 * strapping options to not support sizes such as 128/256 MB.
351 out_le32((void *)PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE);
352 out_le32((void *)PCIX0_PIM0LAH, 0);
353 out_le32((void *)PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1);
354 out_le32((void *)PCIX0_BAR0, 0);
357 * Program the board's subsystem id/vendor id
359 out_le16((void *)PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID);
360 out_le16((void *)PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID);
362 out_le16((void *)PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY);
364 #endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
366 #if defined(CONFIG_PCI)
370 * This routine is called to determine if a pci scan should be
371 * performed. With various hardware environments (especially cPCI and
372 * PPMC) it's insufficient to depend on the state of the arbiter enable
373 * bit in the strap register, or generic host/adapter assumptions.
375 * Rather than hard-code a bad assumption in the general 440 code, the
376 * 440 pci code requires the board to decide at runtime.
378 * Return 0 for adapter mode, non-zero for host (monarch) mode.
380 int is_pci_host(struct pci_controller *hose)
382 /* Board is always configured as host. */
386 static struct pci_controller pcie_hose[2] = {{0},{0}};
388 void pcie_setup_hoses(int busno)
390 struct pci_controller *hose;
398 * assume we're called after the PCIX hose is initialized, which takes
399 * bus ID 0 and therefore start numbering PCIe's from 1.
404 * Canyonlands with SATA enabled has only one PCIe slot
407 if (gd->board_type == BOARD_CANYONLANDS_SATA)
412 for (i = start; i <= 1; i++) {
415 ret = ppc4xx_init_pcie_endport(i);
417 ret = ppc4xx_init_pcie_rootport(i);
421 printf("PCIE%d: initialization as %s failed\n", i,
422 is_end_point(i) ? "endpoint" : "root-complex");
426 hose = &pcie_hose[i];
427 hose->first_busno = bus;
428 hose->last_busno = bus;
429 hose->current_busno = bus;
431 /* setup mem resource */
432 pci_set_region(hose->regions + 0,
433 CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
434 CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
435 CONFIG_SYS_PCIE_MEMSIZE,
437 hose->region_count = 1;
438 pci_register_hose(hose);
440 if (is_end_point(i)) {
441 ppc4xx_setup_pcie_endpoint(hose, i);
443 * Reson for no scanning is endpoint can not generate
444 * upstream configuration accesses.
447 ppc4xx_setup_pcie_rootpoint(hose, i);
448 env = getenv ("pciscandelay");
450 delay = simple_strtoul(env, NULL, 10);
452 printf("Warning, expect noticable delay before "
453 "PCIe scan due to 'pciscandelay' value!\n");
454 mdelay(delay * 1000);
458 * Config access can only go down stream
460 hose->last_busno = pci_hose_scan(hose);
461 bus = hose->last_busno + 1;
465 #endif /* CONFIG_PCI */
467 int board_early_init_r (void)
470 * Canyonlands has 64MBytes of NOR FLASH (Spansion 29GL512), but the
471 * boot EBC mapping only supports a maximum of 16MBytes
472 * (4.ff00.0000 - 4.ffff.ffff).
473 * To solve this problem, the FLASH has to get remapped to another
474 * EBC address which accepts bigger regions:
476 * 0xfc00.0000 -> 4.cc00.0000
479 /* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */
480 #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
481 mtebc(PB3CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
483 mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
486 /* Remove TLB entry of boot EBC mapping */
487 remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20);
489 /* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */
490 program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE,
494 * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address
495 * 0xfc00.0000 is possible
499 * Clear potential errors resulting from auto-calibration.
500 * If not done, then we could get an interrupt later on when
501 * exceptions are enabled.
503 set_mcsr(get_mcsr());
508 #if !defined(CONFIG_ARCHES)
509 int misc_init_r(void)
516 * Set EMAC mode/configuration (GMII, SGMII, RGMII...).
517 * This is board specific, so let's do it here.
519 mfsdr(SDR0_ETH_CFG, eth_cfg);
520 /* disable SGMII mode */
521 eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE |
522 SDR0_ETH_CFG_SGMII1_ENABLE |
523 SDR0_ETH_CFG_SGMII0_ENABLE);
524 /* Set the for 2 RGMII mode */
525 /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
526 eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL;
528 eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
530 eth_cfg &= ~SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
531 mtsdr(SDR0_ETH_CFG, eth_cfg);
534 * The AHB Bridge core is held in reset after power-on or reset
537 mfsdr(SDR0_SRST1, sdr0_srst1);
538 sdr0_srst1 &= ~SDR0_SRST1_AHB;
539 mtsdr(SDR0_SRST1, sdr0_srst1);
543 * Disable square wave output: Batterie will be drained
544 * quickly, when this output is not disabled
546 val = i2c_reg_read(CONFIG_SYS_I2C_RTC_ADDR, 0xa);
548 i2c_reg_write(CONFIG_SYS_I2C_RTC_ADDR, 0xa, val);
553 #else /* defined(CONFIG_ARCHES) */
555 int misc_init_r(void)
562 * Set EMAC mode/configuration (GMII, SGMII, RGMII...).
563 * This is board specific, so let's do it here.
566 /* enable SGMII mode */
567 eth_cfg |= (SDR0_ETH_CFG_SGMII0_ENABLE |
568 SDR0_ETH_CFG_SGMII1_ENABLE |
569 SDR0_ETH_CFG_SGMII2_ENABLE);
571 /* Set EMAC for MDIO */
572 eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0;
574 /* bypass the TAHOE0/TAHOE1 cores for U-Boot */
575 eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
577 mtsdr(SDR0_ETH_CFG, eth_cfg);
579 /* reset all SGMII interfaces */
580 mfsdr(SDR0_SRST1, reg);
581 reg |= (SDR0_SRST1_SGMII0 | SDR0_SRST1_SGMII1 | SDR0_SRST1_SGMII2);
582 mtsdr(SDR0_SRST1, reg);
583 mtsdr(SDR0_ETH_STS, 0xFFFFFFFF);
584 mtsdr(SDR0_SRST1, 0x00000000);
587 mfsdr(SDR0_ETH_PLL, eth_pll);
588 } while (!(eth_pll & SDR0_ETH_PLL_PLLLOCK));
592 #endif /* !defined(CONFIG_ARCHES) */
594 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
595 extern void __ft_board_setup(void *blob, bd_t *bd);
597 void ft_board_setup(void *blob, bd_t *bd)
599 __ft_board_setup(blob, bd);
601 if (gd->board_type == BOARD_CANYONLANDS_SATA) {
603 * When SATA is selected we need to disable the first PCIe
604 * node in the device tree, so that Linux doesn't initialize
607 fdt_find_and_setprop(blob, "/plb/pciex@d00000000", "status",
608 "disabled", sizeof("disabled"), 1);
611 if (gd->board_type == BOARD_CANYONLANDS_PCIE) {
613 * When PCIe is selected we need to disable the SATA
614 * node in the device tree, so that Linux doesn't initialize
617 fdt_find_and_setprop(blob, "/plb/sata@bffd1000", "status",
618 "disabled", sizeof("disabled"), 1);
621 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */