diff options
Diffstat (limited to 'qemu/roms/u-boot/board/sbc8349')
| -rw-r--r-- | qemu/roms/u-boot/board/sbc8349/Makefile | 8 | ||||
| -rw-r--r-- | qemu/roms/u-boot/board/sbc8349/README | 127 | ||||
| -rw-r--r-- | qemu/roms/u-boot/board/sbc8349/pci.c | 71 | ||||
| -rw-r--r-- | qemu/roms/u-boot/board/sbc8349/sbc8349.c | 224 |
4 files changed, 430 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/sbc8349/Makefile b/qemu/roms/u-boot/board/sbc8349/Makefile new file mode 100644 index 000000000..3b2c38948 --- /dev/null +++ b/qemu/roms/u-boot/board/sbc8349/Makefile @@ -0,0 +1,8 @@ +# +# Copyright (c) 2006 Wind River Systems, Inc. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += sbc8349.o +obj-$(CONFIG_PCI) += pci.o diff --git a/qemu/roms/u-boot/board/sbc8349/README b/qemu/roms/u-boot/board/sbc8349/README new file mode 100644 index 000000000..e2d60cc53 --- /dev/null +++ b/qemu/roms/u-boot/board/sbc8349/README @@ -0,0 +1,127 @@ + + + U-Boot for Wind River SBC834x Boards + ==================================== + + +The Wind River SBC834x board is a 6U form factor (not CPCI) reference +design that uses the MPC8347E or MPC8349E processor. U-Boot support +for this board is heavily based on the existing U-Boot support for +Freescale MPC8349 reference boards. + +Support has been primarily tested on the SBC8349 version of the board, +although earlier versions were also tested on the SBC8347. The primary +difference in the two is the level of PCI functionality. + + http://www.windriver.com/products/OCD/SBC8347E_49E/ + + +Flash Details: +============== + +The flash type is intel 28F640Jx (4096x16) [one device]. Base address +is 0xFF80_0000 which is also where the Hardware Reset Configuration +Word (HRCW) is stored. Caution should be used to not reset the +board without having a valid HRCW in place (i.e. erased flash) as +then a Wind River ICE will be required to restore the HRCW and flash +image. + + +Restoring a corrupted or missing flash image: +============================================= + +Note that U-boot versions up to and including 2009.06 had essentially +two copies of u-boot in flash; one at the very beginning, which set +the HRCW, and one at the very end, which was the image that was run. +As of this point in time, the two have been combined into just one +at the beginning of flash, which provides both the HRCW, and the image +that is executed. This frees up the remainder of flash for other uses. +Use of the u-boot command "fli" will indicate what parts are in use. +Details for storing U-boot to flash using a Wind River ICE can be found +on page 19 of the board manual (request ERG-00328-001). The following +is a summary of that information: + + - Connect ICE and establish connection to it from WorkBench/OCD. + - Ensure you have background mode (BKM) in the OCD terminal window. + - Select the appropriate flash type (listed above) + - Prepare a u-boot image by using the Wind River Convert utility; + by using "Convert and Add file" on the ELF file from your build. + Convert from FF80_0000 to FFFF_FFFF (or to FF83_FFFF if you are + trying to preserve your old environment settings and user flash). + - Set the start address of the erase/flash process to FF80_0000 + - Set the target RAM required to 64kB. + - Select sectors for erasing (see note on environment below) + - Select Erase and Reprogram. + +Note that some versions of the register files used with Workbench +would zero some TSEC registers, which inhibits ethernet operation +by u-boot when this register file is played to the target. Using +"INN" in the OCD terminal window instead of "IN" before the "GO" +will not play the register file, and allow u-boot to use the TSEC +interface while executed from the ICE "GO" command. + +Alternatively, you can locate the register file which will be named +WRS_SBC8349_PCT00328001.reg or similar) and "REM" out all the lines +beginning with "SCGA TSEC1" and "SCGA TSEC2". This allows you to +use all the remaining register file content. + +If you wish to preserve your prior U-Boot environment settings, +then convert (and erase to) 0xFF83FFFF instead of 0xFFFFFFFF. +The size for converting (and erasing) must be at least as large +as u-boot.bin. + + +Updating U-Boot with U-Boot: +============================ + +This procedure is very similar to other boards that have u-boot installed. +Assuming that the network has been configured, and that the new u-boot.bin +has been copied to the TFTP server, the commands are: + + tftp 200000 u-boot.bin + protect off all + erase ff800000 ff83ffff + cp.b 200000 ff800000 40000 + protect on all + +You may wish to do a "md ff800000 20" operation as a prefix and postfix +to the above steps to inspect/compare the HRCW before/after as an extra +safety check before resetting the board upon completion of the reflash. + +PCI: +==== + +There are three configuration choices: + sbc8349_config + sbc8349_PCI_33_config + sbc8349_PCI_66_config + +The 1st does not enable CONFIG_PCI, and assumes that the PCI slot +will be left empty (M66EN high), and so the board will operate with +a base clock of 66MHz. Note that you need both PCI enabled in u-boot +and linux in order to have functional PCI under linux. The only +reason for choosing to not enable PCI would be if you had a very +early (rev 1.0) CPU with possible PCI issues. + +The second enables PCI support and builds for a 33MHz clock rate. Note +that if a 33MHz 32bit card is inserted in the slot, then the whole board +will clock down to a 33MHz base clock instead of the default 66MHz. This +will change the baud clocks and mess up your serial console output if you +were previously running at 66MHz. If you want to use a 33MHz PCI card, +then you should build a U-Boot with sbc8349_PCI_33_config and store this +to flash prior to powering down the board and inserting the 33MHz PCI +card. + +The third option builds PCI support in, and leaves the clocking at the +default 66MHz. This has been tested with an intel PCI-X e1000 card. +This is also the appropriate choice for people with a recent (non 1.0) +CPU who currently have the PCI slot physically empty, but intend to +possibly add a PCI-X card at a later date. + + => pci + Scanning PCI devices on bus 0 + BusDevFun VendorId DeviceId Device Class Sub-Class + _____________________________________________________________ + 00.00.00 0x1957 0x0080 Processor 0x20 + 00.11.00 0x8086 0x1026 Network controller 0x00 + => diff --git a/qemu/roms/u-boot/board/sbc8349/pci.c b/qemu/roms/u-boot/board/sbc8349/pci.c new file mode 100644 index 000000000..e792fe313 --- /dev/null +++ b/qemu/roms/u-boot/board/sbc8349/pci.c @@ -0,0 +1,71 @@ +/* + * pci.c -- WindRiver SBC8349 PCI board support. + * Copyright (c) 2006 Wind River Systems, Inc. + * Copyright (C) 2006-2009 Freescale Semiconductor, Inc. + * + * Based on MPC8349 PCI support but w/o PIB related code. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/mmu.h> +#include <asm/io.h> +#include <common.h> +#include <mpc83xx.h> +#include <pci.h> +#include <i2c.h> +#include <asm/fsl_i2c.h> + +DECLARE_GLOBAL_DATA_PTR; + +static struct pci_region pci1_regions[] = { + { + bus_start: CONFIG_SYS_PCI1_MEM_BASE, + phys_start: CONFIG_SYS_PCI1_MEM_PHYS, + size: CONFIG_SYS_PCI1_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CONFIG_SYS_PCI1_IO_BASE, + phys_start: CONFIG_SYS_PCI1_IO_PHYS, + size: CONFIG_SYS_PCI1_IO_SIZE, + flags: PCI_REGION_IO + }, + { + bus_start: CONFIG_SYS_PCI1_MMIO_BASE, + phys_start: CONFIG_SYS_PCI1_MMIO_PHYS, + size: CONFIG_SYS_PCI1_MMIO_SIZE, + flags: PCI_REGION_MEM + }, +}; + +/* + * pci_init_board() + * + * NOTICE: PCI2 is not supported. There is only one + * physical PCI slot on the board. + * + */ +void +pci_init_board(void) +{ + volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; + volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; + volatile law83xx_t *pci_law = immr->sysconf.pcilaw; + struct pci_region *reg[] = { pci1_regions }; + + /* Enable all 8 PCI_CLK_OUTPUTS */ + clk->occr = 0xff000000; + udelay(2000); + + /* Configure PCI Local Access Windows */ + pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G; + + pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR; + pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_4M; + + udelay(2000); + + mpc83xx_pci_init(1, reg); +} diff --git a/qemu/roms/u-boot/board/sbc8349/sbc8349.c b/qemu/roms/u-boot/board/sbc8349/sbc8349.c new file mode 100644 index 000000000..89da47ed1 --- /dev/null +++ b/qemu/roms/u-boot/board/sbc8349/sbc8349.c @@ -0,0 +1,224 @@ +/* + * sbc8349.c -- WindRiver SBC8349 board support. + * Copyright (c) 2006-2007 Wind River Systems, Inc. + * + * Paul Gortmaker <paul.gortmaker@windriver.com> + * Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.) + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <ioports.h> +#include <mpc83xx.h> +#include <asm/mpc8349_pci.h> +#include <i2c.h> +#include <spd_sdram.h> +#include <miiphy.h> +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#endif + +int fixed_sdram(void); +void sdram_init(void); + +#if defined(CONFIG_DDR_ECC) && defined(CONFIG_MPC83xx) +void ddr_enable_ecc(unsigned int dram_size); +#endif + +#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f (void) +{ + return 0; +} +#endif + +#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1) + +phys_size_t initdram (int board_type) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + u32 msize = 0; + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im) + return -1; + + /* DDR SDRAM - Main SODIMM */ + im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR; +#if defined(CONFIG_SPD_EEPROM) + msize = spd_sdram(); +#else + msize = fixed_sdram(); +#endif + /* + * Initialize SDRAM if it is on local bus. + */ + sdram_init(); + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) + /* + * Initialize and enable DDR ECC. + */ + ddr_enable_ecc(msize * 1024 * 1024); +#endif + /* return total bus SDRAM size(bytes) -- DDR */ + return (msize * 1024 * 1024); +} + +#if !defined(CONFIG_SPD_EEPROM) +/************************************************************************* + * fixed sdram init -- doesn't use serial presence detect. + ************************************************************************/ +int fixed_sdram(void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + u32 msize = CONFIG_SYS_DDR_SIZE; + u32 ddr_size = msize << 20; /* DDR size in bytes */ + u32 ddr_size_log2 = __ilog2(msize); + + im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000; + im->sysconf.ddrlaw[0].ar = LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE); + +#if (CONFIG_SYS_DDR_SIZE != 256) +#warning Currently any ddr size other than 256 is not supported +#endif + +#if ((CONFIG_SYS_DDR_SDRAM_BASE & 0x00FFFFFF) != 0) +#warning Chip select bounds is only configurable in 16MB increments +#endif + im->ddr.csbnds[2].csbnds = + ((CONFIG_SYS_DDR_SDRAM_BASE >> CSBNDS_SA_SHIFT) & CSBNDS_SA) | + (((CONFIG_SYS_DDR_SDRAM_BASE + ddr_size - 1) >> + CSBNDS_EA_SHIFT) & CSBNDS_EA); + im->ddr.cs_config[2] = CONFIG_SYS_DDR_CS2_CONFIG; + + /* currently we use only one CS, so disable the other banks */ + im->ddr.cs_config[0] = 0; + im->ddr.cs_config[1] = 0; + im->ddr.cs_config[3] = 0; + + im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1; + im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2; + + im->ddr.sdram_cfg = + SDRAM_CFG_SREN +#if defined(CONFIG_DDR_2T_TIMING) + | SDRAM_CFG_2T_EN +#endif + | SDRAM_CFG_SDRAM_TYPE_DDR1; +#if defined (CONFIG_DDR_32BIT) + /* for 32-bit mode burst length is 8 */ + im->ddr.sdram_cfg |= (SDRAM_CFG_32_BE | SDRAM_CFG_8_BE); +#endif + im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE; + + im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL; + udelay(200); + + /* enable DDR controller */ + im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN; + return msize; +} +#endif/*!CONFIG_SYS_SPD_EEPROM*/ + + +int checkboard (void) +{ + puts("Board: Wind River SBC834x\n"); + return 0; +} + +/* + * if board is fitted with SDRAM + */ +#if defined(CONFIG_SYS_BR2_PRELIM) \ + && defined(CONFIG_SYS_OR2_PRELIM) \ + && defined(CONFIG_SYS_LBLAWBAR2_PRELIM) \ + && defined(CONFIG_SYS_LBLAWAR2_PRELIM) +/* + * Initialize SDRAM memory on the Local Bus. + */ + +void sdram_init(void) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile fsl_lbc_t *lbc = &immap->im_lbc; + uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE; + + puts("\n SDRAM on Local Bus: "); + print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); + + /* + * Setup SDRAM Base and Option Registers, already done in cpu_init.c + */ + + /* setup mtrpt, lsrt and lbcr for LB bus */ + lbc->lbcr = CONFIG_SYS_LBC_LBCR; + lbc->mrtpr = CONFIG_SYS_LBC_MRTPR; + lbc->lsrt = CONFIG_SYS_LBC_LSRT; + asm("sync"); + + /* + * Configure the SDRAM controller Machine Mode Register. + */ + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5; /* 0x40636733; normal operation */ + + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_1; /* 0x68636733; precharge all the banks */ + asm("sync"); + *sdram_addr = 0xff; + udelay(100); + + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_2; /* 0x48636733; auto refresh */ + asm("sync"); + /*1 times*/ + *sdram_addr = 0xff; + udelay(100); + /*2 times*/ + *sdram_addr = 0xff; + udelay(100); + /*3 times*/ + *sdram_addr = 0xff; + udelay(100); + /*4 times*/ + *sdram_addr = 0xff; + udelay(100); + /*5 times*/ + *sdram_addr = 0xff; + udelay(100); + /*6 times*/ + *sdram_addr = 0xff; + udelay(100); + /*7 times*/ + *sdram_addr = 0xff; + udelay(100); + /*8 times*/ + *sdram_addr = 0xff; + udelay(100); + + /* 0x58636733; mode register write operation */ + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_4; + asm("sync"); + *sdram_addr = 0xff; + udelay(100); + + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5; /* 0x40636733; normal operation */ + asm("sync"); + *sdram_addr = 0xff; + udelay(100); +} +#else +void sdram_init(void) +{ + puts(" SDRAM on Local Bus: Disabled in config\n"); +} +#endif + +#if defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif +} +#endif |