diff options
| -rw-r--r-- | board/amcc/canyonlands/Makefile | 52 | ||||
| -rw-r--r-- | board/amcc/canyonlands/bootstrap.c | 169 | ||||
| -rw-r--r-- | board/amcc/canyonlands/canyonlands.c | 385 | ||||
| -rw-r--r-- | board/amcc/canyonlands/config.mk | 49 | ||||
| -rw-r--r-- | board/amcc/canyonlands/init.S | 114 | ||||
| -rw-r--r-- | board/amcc/canyonlands/u-boot.lds | 146 |
6 files changed, 915 insertions, 0 deletions
diff --git a/board/amcc/canyonlands/Makefile b/board/amcc/canyonlands/Makefile new file mode 100644 index 0000000..02281ae --- /dev/null +++ b/board/amcc/canyonlands/Makefile @@ -0,0 +1,52 @@ +# +# (C) Copyright 2008 +# Stefan Roese, DENX Software Engineering, sr@denx.de. +# +# 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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).a + +COBJS := $(BOARD).o +COBJS += bootstrap.o +SOBJS := init.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/amcc/canyonlands/bootstrap.c b/board/amcc/canyonlands/bootstrap.c new file mode 100644 index 0000000..3f5822e --- /dev/null +++ b/board/amcc/canyonlands/bootstrap.c @@ -0,0 +1,169 @@ +/* + * (C) Copyright 2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * 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 <command.h> +#include <i2c.h> +#include <asm/io.h> + +/* + * NOR and NAND boot options change bytes 6, 7, 8, 9, 11. The + * values are independent of the rest of the clock settings. + */ + +#define NAND_COMPATIBLE 0x01 +#define NOR_COMPATIBLE 0x02 + +#define I2C_EEPROM_ADDR 0x52 + +static char *config_labels[] = { + "CPU: 600 PLB: 200 OPB: 100 EBC: 100", + "CPU: 800 PLB: 200 OPB: 100 EBC: 100", + NULL +}; + +static u8 boot_configs[][17] = { + { + (NOR_COMPATIBLE), + 0x86, 0x80, 0xce, 0x1f, 0x79, 0x80, 0x00, 0xa0, 0x40, 0x08, + 0x23, 0x50, 0x0d, 0x95, 0x00, 0x00 + }, + { + (NOR_COMPATIBLE), + 0x86, 0x80, 0xba, 0x14, 0x99, 0x80, 0x00, 0xa0, 0x40, 0x08, + 0x23, 0x50, 0x0d, 0x95, 0x00, 0x00 + }, + { + 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + } +}; + +/* + * Bytes 6,8,9,11 change for NAND boot + */ +static u8 nand_boot[] = { + 0xd0, 0xa0, 0x68, 0x58 +}; + +static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + u8 *buf, b_nand; + int x, y, nbytes, selcfg; + extern char console_buffer[]; + + if (argc < 2) { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if ((strcmp(argv[1], "nor") != 0) && + (strcmp(argv[1], "nand") != 0)) { + printf("Unsupported boot-device - only nor|nand support\n"); + return 1; + } + + /* set the nand flag based on provided input */ + if ((strcmp(argv[1], "nand") == 0)) + b_nand = 1; + else + b_nand = 0; + + printf("Available configurations: \n\n"); + + if (b_nand) { + for(x = 0, y = 0; boot_configs[x][0] != 0; x++) { + /* filter on nand compatible */ + if (boot_configs[x][0] & NAND_COMPATIBLE) { + printf(" %d - %s\n", (y+1), config_labels[x]); + y++; + } + } + } else { + for(x = 0, y = 0; boot_configs[x][0] != 0; x++) { + /* filter on nor compatible */ + if (boot_configs[x][0] & NOR_COMPATIBLE) { + printf(" %d - %s\n", (y+1), config_labels[x]); + y++; + } + } + } + + do { + nbytes = readline(" Selection [1-x / quit]: "); + + if (nbytes) { + if (strcmp(console_buffer, "quit") == 0) + return 0; + selcfg = simple_strtol(console_buffer, NULL, 10); + if ((selcfg < 1) || (selcfg > y)) + nbytes = 0; + } + } while (nbytes == 0); + + + y = (selcfg - 1); + + for (x = 0; boot_configs[x][0] != 0; x++) { + if (b_nand) { + if (boot_configs[x][0] & NAND_COMPATIBLE) { + if (y > 0) + y--; + else if (y < 1) + break; + } + } else { + if (boot_configs[x][0] & NOR_COMPATIBLE) { + if (y > 0) + y--; + else if (y < 1) + break; + } + } + } + + buf = &boot_configs[x][1]; + + if (b_nand) { + buf[6] = nand_boot[0]; + buf[8] = nand_boot[1]; + buf[9] = nand_boot[2]; + buf[11] = nand_boot[3]; + } + + if (i2c_write(I2C_EEPROM_ADDR, 0, 1, buf, 16) != 0) + printf("Error writing to EEPROM at address 0x%x\n", I2C_EEPROM_ADDR); + udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000); + + printf("Done\n"); + printf("Please power-cycle the board for the changes to take effect\n"); + + return 0; +} + +U_BOOT_CMD( + bootstrap, 2, 0, do_bootstrap, + "bootstrap - program the I2C bootstrap EEPROM\n", + "<nand|nor> - strap to boot from NAND or NOR flash\n" + ); diff --git a/board/amcc/canyonlands/canyonlands.c b/board/amcc/canyonlands/canyonlands.c new file mode 100644 index 0000000..8292d2d --- /dev/null +++ b/board/amcc/canyonlands/canyonlands.c @@ -0,0 +1,385 @@ +/* + * (C) Copyright 2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * 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 <ppc440.h> +#include <libfdt.h> +#include <fdt_support.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/mmu.h> +#include <asm/4xx_pcie.h> + +extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +DECLARE_GLOBAL_DATA_PTR; + +int board_early_init_f(void) +{ + u32 sdr0_cust0; + + /*------------------------------------------------------------------+ + * Setup the interrupt controller polarities, triggers, etc. + *------------------------------------------------------------------*/ + mtdcr(uic0sr, 0xffffffff); /* clear all */ + mtdcr(uic0er, 0x00000000); /* disable all */ + mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */ + mtdcr(uic0pr, 0xffffffff); /* per ref-board manual */ + mtdcr(uic0tr, 0x00000000); /* per ref-board manual */ + mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(uic0sr, 0xffffffff); /* clear all */ + + mtdcr(uic1sr, 0xffffffff); /* clear all */ + mtdcr(uic1er, 0x00000000); /* disable all */ + mtdcr(uic1cr, 0x00000000); /* all non-critical */ + mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */ + mtdcr(uic1tr, 0x00000000); /* per ref-board manual */ + mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(uic1sr, 0xffffffff); /* clear all */ + + mtdcr(uic2sr, 0xffffffff); /* clear all */ + mtdcr(uic2er, 0x00000000); /* disable all */ + mtdcr(uic2cr, 0x00000000); /* all non-critical */ + mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */ + mtdcr(uic2tr, 0x00000000); /* per ref-board manual */ + mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(uic2sr, 0xffffffff); /* clear all */ + + mtdcr(uic3sr, 0xffffffff); /* clear all */ + mtdcr(uic3er, 0x00000000); /* disable all */ + mtdcr(uic3cr, 0x00000000); /* all non-critical */ + mtdcr(uic3pr, 0xffffffff); /* per ref-board manual */ + mtdcr(uic3tr, 0x00000000); /* per ref-board manual */ + mtdcr(uic3vr, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(uic3sr, 0xffffffff); /* clear all */ + + /* SDR Setting - enable NDFC */ + mfsdr(SDR0_CUST0, sdr0_cust0); + sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL | + SDR0_CUST0_NDFC_ENABLE | + SDR0_CUST0_NDFC_BW_8_BIT | + SDR0_CUST0_NDFC_ARE_MASK | + SDR0_CUST0_NDFC_BAC_ENCODE(3) | + (0x80000000 >> (28 + CFG_NAND_CS)); + mtsdr(SDR0_CUST0, sdr0_cust0); + + /* + * Configure PFC (Pin Function Control) registers + * UART0: 4 pins + */ + mtsdr(SDR0_PFC1, 0x00040000); + + /* Enable PCI host functionality in SDR0_PCI0 */ + mtsdr(SDR0_PCI0, 0xe0000000); + + /* Enable ethernet and take out of reset */ + out_8((void *)CFG_BCSR_BASE + 6, 0); + + /* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */ + out_8((void *)CFG_BCSR_BASE + 5, 0); + + /* Enable USB host & USB-OTG */ + out_8((void *)CFG_BCSR_BASE + 7, 0); + + mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */ + + return 0; +} + +int checkboard (void) +{ + char *s = getenv("serial#"); + u32 pvr = get_pvr(); + + if ((pvr == PVR_460GT_RA) || (pvr == PVR_460GT_SE_RA)) + printf("Board: Glacier - AMCC PPC460GT Evaluation Board"); + else + printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board"); + + if (s != NULL) { + puts(", serial# "); + puts(s); + } + putc('\n'); + + return (0); +} + +/* + * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with + * board specific values. + */ +u32 ddr_wrdtr(u32 default_val) { + return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823); +} + +u32 ddr_clktr(u32 default_val) { + return (SDRAM_CLKTR_CLKP_90_DEG_ADV); +} + +#if defined(CFG_DRAM_TEST) +int testdram(void) +{ + unsigned long *mem = (unsigned long *)0; + const unsigned long kend = (1024 / sizeof(unsigned long)); + unsigned long k, n; + + mtmsr(0); + + for (k = 0; k < CFG_KBYTES_SDRAM; + ++k, mem += (1024 / sizeof(unsigned long))) { + if ((k & 1023) == 0) { + printf("%3d MB\r", k / 1024); + } + + memset(mem, 0xaaaaaaaa, 1024); + for (n = 0; n < kend; ++n) { + if (mem[n] != 0xaaaaaaaa) { + printf("SDRAM test fails at: %08x\n", + (uint) & mem[n]); + return 1; + } + } + + memset(mem, 0x55555555, 1024); + for (n = 0; n < kend; ++n) { + if (mem[n] != 0x55555555) { + printf("SDRAM test fails at: %08x\n", + (uint) & mem[n]); + return 1; + } + } + } + printf("SDRAM test passes\n"); + return 0; +} +#endif + +/************************************************************************* + * pci_target_init + * + * The bootstrap configuration provides default settings for the pci + * inbound map (PIM). But the bootstrap config choices are limited and + * may not be sufficient for a given board. + * + ************************************************************************/ +#if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) +void pci_target_init(struct pci_controller * hose ) +{ + /*-------------------------------------------------------------------+ + * Disable everything + *-------------------------------------------------------------------*/ + out_le32((void *)PCIX0_PIM0SA, 0); /* disable */ + out_le32((void *)PCIX0_PIM1SA, 0); /* disable */ + out_le32((void *)PCIX0_PIM2SA, 0); /* disable */ + out_le32((void *)PCIX0_EROMBA, 0); /* disable expansion rom */ + + /*-------------------------------------------------------------------+ + * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 + * strapping options to not support sizes such as 128/256 MB. + *-------------------------------------------------------------------*/ + out_le32((void *)PCIX0_PIM0LAL, CFG_SDRAM_BASE); + out_le32((void *)PCIX0_PIM0LAH, 0); + out_le32((void *)PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1); + out_le32((void *)PCIX0_BAR0, 0); + + /*-------------------------------------------------------------------+ + * Program the board's subsystem id/vendor id + *-------------------------------------------------------------------*/ + out_le16((void *)PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID); + out_le16((void *)PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID); + + out_le16((void *)PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY); +} +#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */ + +#if defined(CONFIG_PCI) +/* + * is_pci_host + * + * This routine is called to determine if a pci scan should be + * performed. With various hardware environments (especially cPCI and + * PPMC) it's insufficient to depend on the state of the arbiter enable + * bit in the strap register, or generic host/adapter assumptions. + * + * Rather than hard-code a bad assumption in the general 440 code, the + * 440 pci code requires the board to decide at runtime. + * + * Return 0 for adapter mode, non-zero for host (monarch) mode. + */ +int is_pci_host(struct pci_controller *hose) +{ + /* Board is always configured as host. */ + return (1); +} + +static struct pci_controller pcie_hose[2] = {{0},{0}}; + +void pcie_setup_hoses(int busno) +{ + struct pci_controller *hose; + int i, bus; + int ret = 0; + char *env; + unsigned int delay; + + /* + * assume we're called after the PCIX hose is initialized, which takes + * bus ID 0 and therefore start numbering PCIe's from 1. + */ + bus = busno; + for (i = 0; i <= 1; i++) { + + if (is_end_point(i)) + ret = ppc4xx_init_pcie_endport(i); + else + ret = ppc4xx_init_pcie_rootport(i); + if (ret) { + printf("PCIE%d: initialization as %s failed\n", i, + is_end_point(i) ? "endpoint" : "root-complex"); + continue; + } + + hose = &pcie_hose[i]; + hose->first_busno = bus; + hose->last_busno = bus; + hose->current_busno = bus; + + /* setup mem resource */ + pci_set_region(hose->regions + 0, + CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE, + CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE, + CFG_PCIE_MEMSIZE, + PCI_REGION_MEM); + hose->region_count = 1; + pci_register_hose(hose); + + if (is_end_point(i)) { + ppc4xx_setup_pcie_endpoint(hose, i); + /* + * Reson for no scanning is endpoint can not generate + * upstream configuration accesses. + */ + } else { + ppc4xx_setup_pcie_rootpoint(hose, i); + env = getenv ("pciscandelay"); + if (env != NULL) { + delay = simple_strtoul(env, NULL, 10); + if (delay > 5) + printf("Warning, expect noticable delay before " + "PCIe scan due to 'pciscandelay' value!\n"); + mdelay(delay * 1000); + } + + /* + * Config access can only go down stream + */ + hose->last_busno = pci_hose_scan(hose); + bus = hose->last_busno + 1; + } + } +} +#endif /* CONFIG_PCI */ + +int board_early_init_r (void) +{ + /* + * Canyonlands has 64MBytes of NOR FLASH (Spansion 29GL512), but the + * boot EBC mapping only supports a maximum of 16MBytes + * (4.ff00.0000 - 4.ffff.ffff). + * To solve this problem, the FLASH has to get remapped to another + * EBC address which accepts bigger regions: + * + * 0xfc00.0000 -> 4.cc00.0000 + * + * For this we have to remap the CS0 and re-relocate the envrironment, + * since the original FLASH location which was needed upon startup is + * now not correct anymore. + */ + + /* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */ + mtebc(pb0cr, CFG_FLASH_BASE_PHYS_L | 0xda000); + + /* Remove TLB entry of boot EBC mapping */ + remove_tlb(CFG_BOOT_BASE_ADDR, 16 << 20); + + /* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */ + program_tlb(CFG_FLASH_BASE_PHYS, CFG_FLASH_BASE, CFG_FLASH_SIZE, + TLB_WORD2_I_ENABLE); + + /* + * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address + * 0xfc00.0000 is possible + */ + + return 0; +} + +int misc_init_r(void) +{ + u32 sdr0_srst1 = 0; + u32 eth_cfg; + + /* + * Set EMAC mode/configuration (GMII, SGMII, RGMII...). + * This is board specific, so let's do it here. + */ + mfsdr(SDR0_ETH_CFG, eth_cfg); + /* disable SGMII mode */ + eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE | + SDR0_ETH_CFG_SGMII1_ENABLE | + SDR0_ETH_CFG_SGMII0_ENABLE); + /* Set the for 2 RGMII mode */ + /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */ + eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL; + eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL; + mtsdr(SDR0_ETH_CFG, eth_cfg); + + /* + * The AHB Bridge core is held in reset after power-on or reset + * so enable it now + */ + mfsdr(SDR0_SRST1, sdr0_srst1); + sdr0_srst1 &= ~SDR0_SRST1_AHB; + mtsdr(SDR0_SRST1, sdr0_srst1); + + return 0; +} + +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ + u32 val[4]; + int rc; + + ft_cpu_setup(blob, bd); + + /* Fixup NOR mapping */ + val[0] = 0; /* chip select number */ + val[1] = 0; /* always 0 */ + val[2] = gd->bd->bi_flashstart; + val[3] = gd->bd->bi_flashsize; + rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges", + val, sizeof(val), 1); + if (rc) + printf("Unable to update property NOR mapping, err=%s\n", + fdt_strerror(rc)); +} +#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ diff --git a/board/amcc/canyonlands/config.mk b/board/amcc/canyonlands/config.mk new file mode 100644 index 0000000..1e4bbc4 --- /dev/null +++ b/board/amcc/canyonlands/config.mk @@ -0,0 +1,49 @@ +# +# (C) Copyright 2008 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# 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 +# +# +# AMCC 460EX/460GT Evaluation Board (Canyonlands) board +# + +sinclude $(TOPDIR)/board/$(BOARDDIR)/config.tmp + +ifndef TEXT_BASE +TEXT_BASE = 0xFFFA0000 +endif + +ifeq ($(CONFIG_NAND_U_BOOT),y) +LDSCRIPT = $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds +endif + +ifeq ($(CONFIG_PCIBOOT_U_BOOT),y) +LDSCRIPT = $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds +endif + +PLATFORM_CPPFLAGS += -DCONFIG_440=1 + +ifeq ($(debug),1) +PLATFORM_CPPFLAGS += -DDEBUG +endif + +ifeq ($(dbcr),1) +PLATFORM_CPPFLAGS += -DCFG_INIT_DBCR=0x8cff0000 +endif diff --git a/board/amcc/canyonlands/init.S b/board/amcc/canyonlands/init.S new file mode 100644 index 0000000..5d48847 --- /dev/null +++ b/board/amcc/canyonlands/init.S @@ -0,0 +1,114 @@ +/* + * (C) Copyright 2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * 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 <ppc_asm.tmpl> +#include <config.h> +#include <asm-ppc/mmu.h> + +/************************************************************************** + * TLB TABLE + * + * This table is used by the cpu boot code to setup the initial tlb + * entries. Rather than make broad assumptions in the cpu source tree, + * this table lets each board set things up however they like. + * + * Pointer to the table is returned in r1 + * + *************************************************************************/ + .section .bootpg,"ax" + .globl tlbtab + +tlbtab: + tlbtab_start + + /* + * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to + * use the speed up boot process. It is patched after relocation to + * enable SA_I + */ + tlbentry(CFG_BOOT_BASE_ADDR, SZ_16M, CFG_BOOT_BASE_ADDR, 4, AC_R|AC_W|AC_X|SA_G) /* TLB 0 */ + + /* + * TLB entries for SDRAM are not needed on this platform. + * They are dynamically generated in the SPD DDR(2) detection + * routine. + */ + +#ifdef CFG_INIT_RAM_DCACHE + /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */ + tlbentry(CFG_INIT_RAM_ADDR, SZ_4K, CFG_INIT_RAM_ADDR, 0, AC_R|AC_W|AC_X|SA_G) +#endif + + tlbentry(CFG_PCI_BASE, SZ_256M, 0x00000000, 0xC, AC_R|AC_W|SA_G|SA_I) + tlbentry(CFG_PCI_MEMBASE, SZ_256M, 0x20000000, 0xC, AC_R|AC_W|SA_G|SA_I) + tlbentry(CFG_PCIE_MEMBASE, SZ_256M, 0xB0000000, 0xD, AC_R|AC_W|SA_G|SA_I) + + tlbentry(CFG_PCIE0_CFGBASE, SZ_16M, 0x00000000, 0xD, AC_R|AC_W|SA_G|SA_I) + tlbentry(CFG_PCIE1_CFGBASE, SZ_16M, 0x20000000, 0xD, AC_R|AC_W|SA_G|SA_I) + tlbentry(CFG_PCIE0_XCFGBASE, SZ_1K, 0x10000000, 0xD, AC_R|AC_W|SA_G|SA_I) + tlbentry(CFG_PCIE1_XCFGBASE, SZ_1K, 0x30000000, 0xD, AC_R|AC_W|SA_G|SA_I) + + /* PCIe UTL register */ + tlbentry(CFG_PCIE_BASE, SZ_16K, 0x08010000, 0xC, AC_R|AC_W|SA_G|SA_I) + + /* TLB-entry for NAND */ + tlbentry(CFG_NAND_ADDR, SZ_16M, CFG_NAND_ADDR, 4, AC_R|AC_W|AC_X|SA_G|SA_I) + + /* TLB-entry for CPLD */ + tlbentry(CFG_BCSR_BASE, SZ_1K, CFG_BCSR_BASE, 4, AC_R|AC_W|SA_G|SA_I) + + /* TLB-entry for OCM */ + tlbentry(CFG_OCM_BASE, SZ_4K, 0x00040000, 4, AC_R|AC_W|AC_X) + + /* TLB-entry for Local Configuration registers => peripherals */ + tlbentry(CFG_LOCAL_CONF_REGS, SZ_16M, CFG_LOCAL_CONF_REGS, 4, AC_R|AC_W|AC_X|SA_G|SA_I) + + tlbtab_end + +#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) + /* + * For NAND booting the first TLB has to be reconfigured to full size + * and with caching disabled after running from RAM! + */ +#define TLB00 TLB0(CFG_BOOT_BASE_ADDR, SZ_256M) +#define TLB01 TLB1(CFG_BOOT_BASE_ADDR, 1) +#define TLB02 TLB2(AC_R|AC_W|AC_X|SA_G|SA_I) + + .globl reconfig_tlb0 +reconfig_tlb0: + sync + isync + addi r4,r0,0x0000 /* TLB entry #0 */ + lis r5,TLB00@h + ori r5,r5,TLB00@l + tlbwe r5,r4,0x0000 /* Save it out */ + lis r5,TLB01@h + ori r5,r5,TLB01@l + tlbwe r5,r4,0x0001 /* Save it out */ + lis r5,TLB02@h + ori r5,r5,TLB02@l + tlbwe r5,r4,0x0002 /* Save it out */ + sync + isync + blr +#endif diff --git a/board/amcc/canyonlands/u-boot.lds b/board/amcc/canyonlands/u-boot.lds new file mode 100644 index 0000000..7496f48 --- /dev/null +++ b/board/amcc/canyonlands/u-boot.lds @@ -0,0 +1,146 @@ +/* + * (C) Copyright 2008 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * 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 + */ + +OUTPUT_ARCH(powerpc) +SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib); +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + .resetvec 0xFFFFFFFC : + { + *(.resetvec) + } = 0xffff + + .bootpg 0xFFFFF000 : + { + cpu/ppc4xx/start.o (.bootpg) + } = 0xffff + + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + /* WARNING - the following is hand-optimized to fit within */ + /* the sector layout of our flash chips! XXX FIXME XXX */ + + cpu/ppc4xx/start.o (.text) + board/amcc/canyonlands/init.o (.text) + + *(.text) + *(.fixup) + *(.got1) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; + __fixup_entries = (. - _FIXUP_TABLE_)>>2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + + ppcenv_assert = ASSERT(. < 0xFFFF8000, ".bss section too big, overlaps .ppcenv section. Please update your confguration: CFG_MONITOR_BASE, CFG_MONITOR_LEN and TEXT_BASE may need to be modified."); + + _end = . ; + PROVIDE (end = .); +} |