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[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
34 DECLARE_GLOBAL_DATA_PTR;
36 #define CFG_BCSR3_PCIE 0x10
38 #define BOARD_CANYONLANDS_PCIE 1
39 #define BOARD_CANYONLANDS_SATA 2
40 #define BOARD_GLACIER 3
42 int board_early_init_f(void)
48 * Setup the interrupt controller polarities, triggers, etc.
50 mtdcr(uic0sr, 0xffffffff); /* clear all */
51 mtdcr(uic0er, 0x00000000); /* disable all */
52 mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
53 mtdcr(uic0pr, 0xffffffff); /* per ref-board manual */
54 mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
55 mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */
56 mtdcr(uic0sr, 0xffffffff); /* clear all */
58 mtdcr(uic1sr, 0xffffffff); /* clear all */
59 mtdcr(uic1er, 0x00000000); /* disable all */
60 mtdcr(uic1cr, 0x00000000); /* all non-critical */
61 mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */
62 mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
63 mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */
64 mtdcr(uic1sr, 0xffffffff); /* clear all */
66 mtdcr(uic2sr, 0xffffffff); /* clear all */
67 mtdcr(uic2er, 0x00000000); /* disable all */
68 mtdcr(uic2cr, 0x00000000); /* all non-critical */
69 mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */
70 mtdcr(uic2tr, 0x00000000); /* per ref-board manual */
71 mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */
72 mtdcr(uic2sr, 0xffffffff); /* clear all */
74 mtdcr(uic3sr, 0xffffffff); /* clear all */
75 mtdcr(uic3er, 0x00000000); /* disable all */
76 mtdcr(uic3cr, 0x00000000); /* all non-critical */
77 mtdcr(uic3pr, 0xffffffff); /* per ref-board manual */
78 mtdcr(uic3tr, 0x00000000); /* per ref-board manual */
79 mtdcr(uic3vr, 0x00000000); /* int31 highest, base=0x000 */
80 mtdcr(uic3sr, 0xffffffff); /* clear all */
82 /* SDR Setting - enable NDFC */
83 mfsdr(SDR0_CUST0, sdr0_cust0);
84 sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
85 SDR0_CUST0_NDFC_ENABLE |
86 SDR0_CUST0_NDFC_BW_8_BIT |
87 SDR0_CUST0_NDFC_ARE_MASK |
88 SDR0_CUST0_NDFC_BAC_ENCODE(3) |
89 (0x80000000 >> (28 + CFG_NAND_CS));
90 mtsdr(SDR0_CUST0, sdr0_cust0);
93 * Configure PFC (Pin Function Control) registers
96 mtsdr(SDR0_PFC1, 0x00040000);
98 /* Enable PCI host functionality in SDR0_PCI0 */
99 mtsdr(SDR0_PCI0, 0xe0000000);
101 /* Enable ethernet and take out of reset */
102 out_8((void *)CFG_BCSR_BASE + 6, 0);
104 /* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */
105 out_8((void *)CFG_BCSR_BASE + 5, 0);
107 /* Enable USB host & USB-OTG */
108 out_8((void *)CFG_BCSR_BASE + 7, 0);
110 mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
112 /* Setup PLB4-AHB bridge based on the system address map */
113 mtdcr(AHB_TOP, 0x8000004B);
114 mtdcr(AHB_BOT, 0x8000004B);
116 if ((pvr == PVR_460EX_RA) || (pvr == PVR_460EX_SE_RA)) {
118 * Configure USB-STP pins as alternate and not GPIO
119 * It seems to be neccessary to configure the STP pins as GPIO
120 * input at powerup (perhaps while USB reset is asserted). So
121 * we configure those pins to their "real" function now.
123 gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
124 gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
130 static void canyonlands_sata_init(int board_type)
134 if (board_type == BOARD_CANYONLANDS_SATA) {
135 /* Put SATA in reset */
136 SDR_WRITE(SDR0_SRST1, 0x00020001);
138 /* Set the phy for SATA, not PCI-E port 0 */
139 reg = SDR_READ(PESDR0_PHY_CTL_RST);
140 SDR_WRITE(PESDR0_PHY_CTL_RST, (reg & 0xeffffffc) | 0x00000001);
141 reg = SDR_READ(PESDR0_L0CLK);
142 SDR_WRITE(PESDR0_L0CLK, (reg & 0xfffffff8) | 0x00000007);
143 SDR_WRITE(PESDR0_L0CDRCTL, 0x00003111);
144 SDR_WRITE(PESDR0_L0DRV, 0x00000104);
146 /* Bring SATA out of reset */
147 SDR_WRITE(SDR0_SRST1, 0x00000000);
153 char *s = getenv("serial#");
156 if ((pvr == PVR_460GT_RA) || (pvr == PVR_460GT_SE_RA)) {
157 printf("Board: Glacier - AMCC PPC460GT Evaluation Board");
158 gd->board_type = BOARD_GLACIER;
160 printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
161 if (in_8((void *)(CFG_BCSR_BASE + 3)) & CFG_BCSR3_PCIE)
162 gd->board_type = BOARD_CANYONLANDS_PCIE;
164 gd->board_type = BOARD_CANYONLANDS_SATA;
167 switch (gd->board_type) {
168 case BOARD_CANYONLANDS_PCIE:
173 case BOARD_CANYONLANDS_SATA:
174 puts(", 1*PCIe/1*SATA");
178 printf(", Rev. %X", in_8((void *)(CFG_BCSR_BASE + 0)));
186 canyonlands_sata_init(gd->board_type);
192 * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
193 * board specific values.
195 u32 ddr_wrdtr(u32 default_val) {
196 return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
199 u32 ddr_clktr(u32 default_val) {
200 return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
203 #if defined(CONFIG_NAND_U_BOOT)
205 * NAND booting U-Boot version uses a fixed initialization, since the whole
206 * I2C SPD DIMM autodetection/calibration doesn't fit into the 4k of boot
209 phys_size_t initdram(int board_type)
211 return CFG_MBYTES_SDRAM << 20;
218 * The bootstrap configuration provides default settings for the pci
219 * inbound map (PIM). But the bootstrap config choices are limited and
220 * may not be sufficient for a given board.
222 #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
223 void pci_target_init(struct pci_controller * hose )
228 out_le32((void *)PCIX0_PIM0SA, 0); /* disable */
229 out_le32((void *)PCIX0_PIM1SA, 0); /* disable */
230 out_le32((void *)PCIX0_PIM2SA, 0); /* disable */
231 out_le32((void *)PCIX0_EROMBA, 0); /* disable expansion rom */
234 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440
235 * strapping options to not support sizes such as 128/256 MB.
237 out_le32((void *)PCIX0_PIM0LAL, CFG_SDRAM_BASE);
238 out_le32((void *)PCIX0_PIM0LAH, 0);
239 out_le32((void *)PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1);
240 out_le32((void *)PCIX0_BAR0, 0);
243 * Program the board's subsystem id/vendor id
245 out_le16((void *)PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID);
246 out_le16((void *)PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID);
248 out_le16((void *)PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY);
250 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
252 #if defined(CONFIG_PCI)
256 * This routine is called to determine if a pci scan should be
257 * performed. With various hardware environments (especially cPCI and
258 * PPMC) it's insufficient to depend on the state of the arbiter enable
259 * bit in the strap register, or generic host/adapter assumptions.
261 * Rather than hard-code a bad assumption in the general 440 code, the
262 * 440 pci code requires the board to decide at runtime.
264 * Return 0 for adapter mode, non-zero for host (monarch) mode.
266 int is_pci_host(struct pci_controller *hose)
268 /* Board is always configured as host. */
272 static struct pci_controller pcie_hose[2] = {{0},{0}};
274 void pcie_setup_hoses(int busno)
276 struct pci_controller *hose;
284 * assume we're called after the PCIX hose is initialized, which takes
285 * bus ID 0 and therefore start numbering PCIe's from 1.
290 * Canyonlands with SATA enabled has only one PCIe slot
293 if (gd->board_type == BOARD_CANYONLANDS_SATA)
298 for (i = start; i <= 1; i++) {
301 ret = ppc4xx_init_pcie_endport(i);
303 ret = ppc4xx_init_pcie_rootport(i);
305 printf("PCIE%d: initialization as %s failed\n", i,
306 is_end_point(i) ? "endpoint" : "root-complex");
310 hose = &pcie_hose[i];
311 hose->first_busno = bus;
312 hose->last_busno = bus;
313 hose->current_busno = bus;
315 /* setup mem resource */
316 pci_set_region(hose->regions + 0,
317 CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
318 CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
321 hose->region_count = 1;
322 pci_register_hose(hose);
324 if (is_end_point(i)) {
325 ppc4xx_setup_pcie_endpoint(hose, i);
327 * Reson for no scanning is endpoint can not generate
328 * upstream configuration accesses.
331 ppc4xx_setup_pcie_rootpoint(hose, i);
332 env = getenv ("pciscandelay");
334 delay = simple_strtoul(env, NULL, 10);
336 printf("Warning, expect noticable delay before "
337 "PCIe scan due to 'pciscandelay' value!\n");
338 mdelay(delay * 1000);
342 * Config access can only go down stream
344 hose->last_busno = pci_hose_scan(hose);
345 bus = hose->last_busno + 1;
349 #endif /* CONFIG_PCI */
351 int board_early_init_r (void)
354 * Canyonlands has 64MBytes of NOR FLASH (Spansion 29GL512), but the
355 * boot EBC mapping only supports a maximum of 16MBytes
356 * (4.ff00.0000 - 4.ffff.ffff).
357 * To solve this problem, the FLASH has to get remapped to another
358 * EBC address which accepts bigger regions:
360 * 0xfc00.0000 -> 4.cc00.0000
363 /* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */
364 #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
365 mtebc(pb3cr, CFG_FLASH_BASE_PHYS_L | 0xda000);
367 mtebc(pb0cr, CFG_FLASH_BASE_PHYS_L | 0xda000);
370 /* Remove TLB entry of boot EBC mapping */
371 remove_tlb(CFG_BOOT_BASE_ADDR, 16 << 20);
373 /* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */
374 program_tlb(CFG_FLASH_BASE_PHYS, CFG_FLASH_BASE, CFG_FLASH_SIZE,
378 * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address
379 * 0xfc00.0000 is possible
383 * Clear potential errors resulting from auto-calibration.
384 * If not done, then we could get an interrupt later on when
385 * exceptions are enabled.
387 set_mcsr(get_mcsr());
392 int misc_init_r(void)
400 * Set EMAC mode/configuration (GMII, SGMII, RGMII...).
401 * This is board specific, so let's do it here.
403 mfsdr(SDR0_ETH_CFG, eth_cfg);
404 /* disable SGMII mode */
405 eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE |
406 SDR0_ETH_CFG_SGMII1_ENABLE |
407 SDR0_ETH_CFG_SGMII0_ENABLE);
408 /* Set the for 2 RGMII mode */
409 /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
410 eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL;
411 if ((pvr == PVR_460EX_RA) || (pvr == PVR_460EX_SE_RA))
412 eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
414 eth_cfg &= ~SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
415 mtsdr(SDR0_ETH_CFG, eth_cfg);
418 * The AHB Bridge core is held in reset after power-on or reset
421 mfsdr(SDR0_SRST1, sdr0_srst1);
422 sdr0_srst1 &= ~SDR0_SRST1_AHB;
423 mtsdr(SDR0_SRST1, sdr0_srst1);
427 * Disable square wave output: Batterie will be drained
428 * quickly, when this output is not disabled
430 val = i2c_reg_read(CFG_I2C_RTC_ADDR, 0xa);
432 i2c_reg_write(CFG_I2C_RTC_ADDR, 0xa, val);
437 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
438 void ft_board_setup(void *blob, bd_t *bd)
443 ft_cpu_setup(blob, bd);
445 /* Fixup NOR mapping */
446 val[0] = 0; /* chip select number */
447 val[1] = 0; /* always 0 */
448 val[2] = CFG_FLASH_BASE_PHYS_L; /* we fixed up this address */
449 val[3] = gd->bd->bi_flashsize;
450 rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
451 val, sizeof(val), 1);
453 printf("Unable to update property NOR mapping, err=%s\n",
457 if (gd->board_type == BOARD_CANYONLANDS_SATA) {
459 * When SATA is selected we need to disable the first PCIe
460 * node in the device tree, so that Linux doesn't initialize
463 rc = fdt_find_and_setprop(blob, "/plb/pciex@d00000000", "status",
464 "disabled", sizeof("disabled"), 1);
466 printf("Unable to update property status in PCIe node, err=%s\n",
471 if (gd->board_type == BOARD_CANYONLANDS_PCIE) {
473 * When PCIe is selected we need to disable the SATA
474 * node in the device tree, so that Linux doesn't initialize
477 rc = fdt_find_and_setprop(blob, "/plb/sata@bffd1000", "status",
478 "disabled", sizeof("disabled"), 1);
480 printf("Unable to update property status in PCIe node, err=%s\n",
485 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */