diff options
Diffstat (limited to 'qemu/roms/u-boot/board/freescale/mpc8308rdb/mpc8308rdb.c')
-rw-r--r-- | qemu/roms/u-boot/board/freescale/mpc8308rdb/mpc8308rdb.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/freescale/mpc8308rdb/mpc8308rdb.c b/qemu/roms/u-boot/board/freescale/mpc8308rdb/mpc8308rdb.c new file mode 100644 index 000000000..fba41fe50 --- /dev/null +++ b/qemu/roms/u-boot/board/freescale/mpc8308rdb/mpc8308rdb.c @@ -0,0 +1,190 @@ +/* + * Copyright (C) 2010 Freescale Semiconductor, Inc. + * Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <hwconfig.h> +#include <i2c.h> +#include <spi.h> +#include <libfdt.h> +#include <fdt_support.h> +#include <pci.h> +#include <mpc83xx.h> +#include <vsc7385.h> +#include <netdev.h> +#include <fsl_esdhc.h> +#include <asm/io.h> +#include <asm/fsl_serdes.h> +#include <asm/fsl_mpc83xx_serdes.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * The following are used to control the SPI chip selects for the SPI command. + */ +#ifdef CONFIG_MPC8XXX_SPI + +#define SPI_CS_MASK 0x00400000 + +int spi_cs_is_valid(unsigned int bus, unsigned int cs) +{ + return bus == 0 && cs == 0; +} + +void spi_cs_activate(struct spi_slave *slave) +{ + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + + /* active low */ + clrbits_be32(&immr->gpio[0].dat, SPI_CS_MASK); +} + +void spi_cs_deactivate(struct spi_slave *slave) +{ + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + + /* inactive high */ + setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK); +} +#endif /* CONFIG_MPC8XXX_SPI */ + +#ifdef CONFIG_FSL_ESDHC +int board_mmc_init(bd_t *bd) +{ + return fsl_esdhc_mmc_init(bd); +} +#endif + +static u8 read_board_info(void) +{ + u8 val8; + i2c_set_bus_num(0); + + if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0) + return val8; + else + return 0; +} + +int checkboard(void) +{ + static const char * const rev_str[] = { + "1.0", + "<reserved>", + "<reserved>", + "<reserved>", + "<unknown>", + }; + u8 info; + int i; + + info = read_board_info(); + i = (!info) ? 4 : info & 0x03; + + printf("Board: Freescale MPC8308RDB Rev %s\n", rev_str[i]); + + return 0; +} + +static struct pci_region pcie_regions_0[] = { + { + .bus_start = CONFIG_SYS_PCIE1_MEM_BASE, + .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS, + .size = CONFIG_SYS_PCIE1_MEM_SIZE, + .flags = PCI_REGION_MEM, + }, + { + .bus_start = CONFIG_SYS_PCIE1_IO_BASE, + .phys_start = CONFIG_SYS_PCIE1_IO_PHYS, + .size = CONFIG_SYS_PCIE1_IO_SIZE, + .flags = PCI_REGION_IO, + }, +}; + +void pci_init_board(void) +{ + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + sysconf83xx_t *sysconf = &immr->sysconf; + law83xx_t *pcie_law = sysconf->pcielaw; + struct pci_region *pcie_reg[] = { pcie_regions_0 }; + + fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX, + FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V); + + /* Deassert the resets in the control register */ + out_be32(&sysconf->pecr1, 0xE0008000); + udelay(2000); + + /* Configure PCI Express Local Access Windows */ + out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR); + out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB); + + mpc83xx_pcie_init(1, pcie_reg); +} +/* + * Miscellaneous late-boot configurations + * + * If a VSC7385 microcode image is present, then upload it. +*/ +int misc_init_r(void) +{ +#ifdef CONFIG_MPC8XXX_SPI + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + sysconf83xx_t *sysconf = &immr->sysconf; + + /* + * Set proper bits in SICRH to allow SPI on header J8 + * + * NOTE: this breaks the TSEC2 interface, attached to the Vitesse + * switch. The pinmux configuration does not have a fine enough + * granularity to support both simultaneously. + */ + clrsetbits_be32(&sysconf->sicrh, SICRH_GPIO_A_TSEC2, SICRH_GPIO_A_GPIO); + puts("WARNING: SPI enabled, TSEC2 support is broken\n"); + + /* Set header J8 SPI chip select output, disabled */ + setbits_be32(&immr->gpio[0].dir, SPI_CS_MASK); + setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK); +#endif + +#ifdef CONFIG_VSC7385_IMAGE + if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE, + CONFIG_VSC7385_IMAGE_SIZE)) { + puts("Failure uploading VSC7385 microcode.\n"); + return 1; + } +#endif + + return 0; +} +#if defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); + fdt_fixup_dr_usb(blob, bd); + fdt_fixup_esdhc(blob, bd); +} +#endif + +int board_eth_init(bd_t *bis) +{ + int rv, num_if = 0; + + /* Initialize TSECs first */ + rv = cpu_eth_init(bis); + if (rv >= 0) + num_if += rv; + else + printf("ERROR: failed to initialize TSECs.\n"); + + rv = pci_eth_init(bis); + if (rv >= 0) + num_if += rv; + else + printf("ERROR: failed to initialize PCI Ethernet.\n"); + + return num_if; +} |