| /* |
| * Copyright 2006, 2007 Freescale Semiconductor. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #include <common.h> |
| #include <pci.h> |
| #include <asm/processor.h> |
| #include <asm/immap_86xx.h> |
| #include <asm/immap_fsl_pci.h> |
| #include <spd_sdram.h> |
| #include <asm/io.h> |
| #include <libfdt.h> |
| #include <fdt_support.h> |
| |
| #include "../common/pixis.h" |
| |
| #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) |
| extern void ddr_enable_ecc(unsigned int dram_size); |
| #endif |
| |
| void sdram_init(void); |
| long int fixed_sdram(void); |
| |
| |
| int board_early_init_f(void) |
| { |
| return 0; |
| } |
| |
| int checkboard(void) |
| { |
| puts("Board: MPC8641HPCN\n"); |
| |
| return 0; |
| } |
| |
| |
| long int |
| initdram(int board_type) |
| { |
| long dram_size = 0; |
| |
| #if defined(CONFIG_SPD_EEPROM) |
| dram_size = spd_sdram(); |
| #else |
| dram_size = fixed_sdram(); |
| #endif |
| |
| #if defined(CFG_RAMBOOT) |
| puts(" DDR: "); |
| return dram_size; |
| #endif |
| |
| #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) |
| /* |
| * Initialize and enable DDR ECC. |
| */ |
| ddr_enable_ecc(dram_size); |
| #endif |
| |
| puts(" DDR: "); |
| return dram_size; |
| } |
| |
| |
| #if defined(CFG_DRAM_TEST) |
| int |
| testdram(void) |
| { |
| uint *pstart = (uint *) CFG_MEMTEST_START; |
| uint *pend = (uint *) CFG_MEMTEST_END; |
| uint *p; |
| |
| puts("SDRAM test phase 1:\n"); |
| for (p = pstart; p < pend; p++) |
| *p = 0xaaaaaaaa; |
| |
| for (p = pstart; p < pend; p++) { |
| if (*p != 0xaaaaaaaa) { |
| printf("SDRAM test fails at: %08x\n", (uint) p); |
| return 1; |
| } |
| } |
| |
| puts("SDRAM test phase 2:\n"); |
| for (p = pstart; p < pend; p++) |
| *p = 0x55555555; |
| |
| for (p = pstart; p < pend; p++) { |
| if (*p != 0x55555555) { |
| printf("SDRAM test fails at: %08x\n", (uint) p); |
| return 1; |
| } |
| } |
| |
| puts("SDRAM test passed.\n"); |
| return 0; |
| } |
| #endif |
| |
| |
| #if !defined(CONFIG_SPD_EEPROM) |
| /* |
| * Fixed sdram init -- doesn't use serial presence detect. |
| */ |
| long int |
| fixed_sdram(void) |
| { |
| #if !defined(CFG_RAMBOOT) |
| volatile immap_t *immap = (immap_t *) CFG_IMMR; |
| volatile ccsr_ddr_t *ddr = &immap->im_ddr1; |
| |
| ddr->cs0_bnds = CFG_DDR_CS0_BNDS; |
| ddr->cs0_config = CFG_DDR_CS0_CONFIG; |
| ddr->ext_refrec = CFG_DDR_EXT_REFRESH; |
| ddr->timing_cfg_0 = CFG_DDR_TIMING_0; |
| ddr->timing_cfg_1 = CFG_DDR_TIMING_1; |
| ddr->timing_cfg_2 = CFG_DDR_TIMING_2; |
| ddr->sdram_mode_1 = CFG_DDR_MODE_1; |
| ddr->sdram_mode_2 = CFG_DDR_MODE_2; |
| ddr->sdram_interval = CFG_DDR_INTERVAL; |
| ddr->sdram_data_init = CFG_DDR_DATA_INIT; |
| ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL; |
| ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL; |
| ddr->sdram_ocd_status = CFG_DDR_OCD_STATUS; |
| |
| #if defined (CONFIG_DDR_ECC) |
| ddr->err_disable = 0x0000008D; |
| ddr->err_sbe = 0x00ff0000; |
| #endif |
| asm("sync;isync"); |
| |
| udelay(500); |
| |
| #if defined (CONFIG_DDR_ECC) |
| /* Enable ECC checking */ |
| ddr->sdram_cfg_1 = (CFG_DDR_CONTROL | 0x20000000); |
| #else |
| ddr->sdram_cfg_1 = CFG_DDR_CONTROL; |
| ddr->sdram_cfg_2 = CFG_DDR_CONTROL2; |
| #endif |
| asm("sync; isync"); |
| |
| udelay(500); |
| #endif |
| return CFG_SDRAM_SIZE * 1024 * 1024; |
| } |
| #endif /* !defined(CONFIG_SPD_EEPROM) */ |
| |
| |
| #if defined(CONFIG_PCI) |
| /* |
| * Initialize PCI Devices, report devices found. |
| */ |
| |
| #ifndef CONFIG_PCI_PNP |
| static struct pci_config_table pci_fsl86xxads_config_table[] = { |
| {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, |
| PCI_IDSEL_NUMBER, PCI_ANY_ID, |
| pci_cfgfunc_config_device, {PCI_ENET0_IOADDR, |
| PCI_ENET0_MEMADDR, |
| PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}}, |
| {} |
| }; |
| #endif |
| |
| |
| static struct pci_controller pci1_hose = { |
| #ifndef CONFIG_PCI_PNP |
| config_table:pci_mpc86xxcts_config_table |
| #endif |
| }; |
| #endif /* CONFIG_PCI */ |
| |
| #ifdef CONFIG_PCI2 |
| static struct pci_controller pci2_hose; |
| #endif /* CONFIG_PCI2 */ |
| |
| int first_free_busno = 0; |
| |
| |
| void pci_init_board(void) |
| { |
| volatile immap_t *immap = (immap_t *) CFG_CCSRBAR; |
| volatile ccsr_gur_t *gur = &immap->im_gur; |
| uint devdisr = gur->devdisr; |
| uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL) |
| >> MPC8641_PORDEVSR_IO_SEL_SHIFT; |
| |
| #ifdef CONFIG_PCI1 |
| { |
| volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR; |
| extern void fsl_pci_init(struct pci_controller *hose); |
| struct pci_controller *hose = &pci1_hose; |
| #ifdef DEBUG |
| uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA) |
| >> MPC8641_PORBMSR_HA_SHIFT; |
| uint pex1_agent = (host1_agent == 0) || (host1_agent == 1); |
| #endif |
| if ((io_sel == 2 || io_sel == 3 || io_sel == 5 |
| || io_sel == 6 || io_sel == 7 || io_sel == 0xF) |
| && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) { |
| debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host"); |
| debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det); |
| if (pci->pme_msg_det) { |
| pci->pme_msg_det = 0xffffffff; |
| debug(" with errors. Clearing. Now 0x%08x", |
| pci->pme_msg_det); |
| } |
| debug("\n"); |
| |
| /* inbound */ |
| pci_set_region(hose->regions + 0, |
| CFG_PCI_MEMORY_BUS, |
| CFG_PCI_MEMORY_PHYS, |
| CFG_PCI_MEMORY_SIZE, |
| PCI_REGION_MEM | PCI_REGION_MEMORY); |
| |
| /* outbound memory */ |
| pci_set_region(hose->regions + 1, |
| CFG_PCI1_MEM_BASE, |
| CFG_PCI1_MEM_PHYS, |
| CFG_PCI1_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(hose->regions + 2, |
| CFG_PCI1_IO_BASE, |
| CFG_PCI1_IO_PHYS, |
| CFG_PCI1_IO_SIZE, |
| PCI_REGION_IO); |
| |
| hose->region_count = 3; |
| |
| hose->first_busno=first_free_busno; |
| pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); |
| |
| fsl_pci_init(hose); |
| |
| first_free_busno=hose->last_busno+1; |
| printf (" PCI-EXPRESS 1 on bus %02x - %02x\n", |
| hose->first_busno,hose->last_busno); |
| |
| /* |
| * Activate ULI1575 legacy chip by performing a fake |
| * memory access. Needed to make ULI RTC work. |
| */ |
| in_be32((unsigned *) ((char *)(CFG_PCI1_MEM_BASE |
| + CFG_PCI1_MEM_SIZE - 0x1000000))); |
| |
| } else { |
| puts("PCI-EXPRESS 1: Disabled\n"); |
| } |
| } |
| #else |
| puts("PCI-EXPRESS1: Disabled\n"); |
| #endif /* CONFIG_PCI1 */ |
| |
| #ifdef CONFIG_PCI2 |
| { |
| volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI2_ADDR; |
| extern void fsl_pci_init(struct pci_controller *hose); |
| struct pci_controller *hose = &pci2_hose; |
| |
| |
| /* inbound */ |
| pci_set_region(hose->regions + 0, |
| CFG_PCI_MEMORY_BUS, |
| CFG_PCI_MEMORY_PHYS, |
| CFG_PCI_MEMORY_SIZE, |
| PCI_REGION_MEM | PCI_REGION_MEMORY); |
| |
| /* outbound memory */ |
| pci_set_region(hose->regions + 1, |
| CFG_PCI2_MEM_BASE, |
| CFG_PCI2_MEM_PHYS, |
| CFG_PCI2_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(hose->regions + 2, |
| CFG_PCI2_IO_BASE, |
| CFG_PCI2_IO_PHYS, |
| CFG_PCI2_IO_SIZE, |
| PCI_REGION_IO); |
| |
| hose->region_count = 3; |
| |
| hose->first_busno=first_free_busno; |
| pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); |
| |
| fsl_pci_init(hose); |
| |
| first_free_busno=hose->last_busno+1; |
| printf (" PCI-EXPRESS 2 on bus %02x - %02x\n", |
| hose->first_busno,hose->last_busno); |
| } |
| #else |
| puts("PCI-EXPRESS 2: Disabled\n"); |
| #endif /* CONFIG_PCI2 */ |
| |
| } |
| |
| |
| #if defined(CONFIG_OF_BOARD_SETUP) |
| |
| void |
| ft_board_setup(void *blob, bd_t *bd) |
| { |
| int node, tmp[2]; |
| const char *path; |
| |
| ft_cpu_setup(blob, bd); |
| |
| node = fdt_path_offset(blob, "/aliases"); |
| tmp[0] = 0; |
| if (node >= 0) { |
| #ifdef CONFIG_PCI1 |
| path = fdt_getprop(blob, node, "pci0", NULL); |
| if (path) { |
| tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno; |
| do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); |
| } |
| #endif |
| #ifdef CONFIG_PCI2 |
| path = fdt_getprop(blob, node, "pci1", NULL); |
| if (path) { |
| tmp[1] = pci2_hose.last_busno - pci2_hose.first_busno; |
| do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); |
| } |
| #endif |
| } |
| } |
| #endif |
| |
| |
| /* |
| * get_board_sys_clk |
| * Reads the FPGA on board for CONFIG_SYS_CLK_FREQ |
| */ |
| |
| unsigned long |
| get_board_sys_clk(ulong dummy) |
| { |
| u8 i, go_bit, rd_clks; |
| ulong val = 0; |
| |
| go_bit = in8(PIXIS_BASE + PIXIS_VCTL); |
| go_bit &= 0x01; |
| |
| rd_clks = in8(PIXIS_BASE + PIXIS_VCFGEN0); |
| rd_clks &= 0x1C; |
| |
| /* |
| * Only if both go bit and the SCLK bit in VCFGEN0 are set |
| * should we be using the AUX register. Remember, we also set the |
| * GO bit to boot from the alternate bank on the on-board flash |
| */ |
| |
| if (go_bit) { |
| if (rd_clks == 0x1c) |
| i = in8(PIXIS_BASE + PIXIS_AUX); |
| else |
| i = in8(PIXIS_BASE + PIXIS_SPD); |
| } else { |
| i = in8(PIXIS_BASE + PIXIS_SPD); |
| } |
| |
| i &= 0x07; |
| |
| switch (i) { |
| case 0: |
| val = 33000000; |
| break; |
| case 1: |
| val = 40000000; |
| break; |
| case 2: |
| val = 50000000; |
| break; |
| case 3: |
| val = 66000000; |
| break; |
| case 4: |
| val = 83000000; |
| break; |
| case 5: |
| val = 100000000; |
| break; |
| case 6: |
| val = 134000000; |
| break; |
| case 7: |
| val = 166000000; |
| break; |
| } |
| |
| return val; |
| } |