mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-10-03 12:52:07 +00:00
d024236e5a
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
190 lines
4 KiB
C
190 lines
4 KiB
C
/*
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* Copyright (C) 2010 Freescale Semiconductor, Inc.
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* Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <hwconfig.h>
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#include <i2c.h>
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#include <spi.h>
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#include <linux/libfdt.h>
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#include <fdt_support.h>
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#include <pci.h>
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#include <mpc83xx.h>
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#include <vsc7385.h>
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#include <netdev.h>
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#include <fsl_esdhc.h>
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#include <asm/io.h>
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#include <asm/fsl_serdes.h>
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#include <asm/fsl_mpc83xx_serdes.h>
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/*
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* The following are used to control the SPI chip selects for the SPI command.
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*/
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#ifdef CONFIG_MPC8XXX_SPI
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#define SPI_CS_MASK 0x00400000
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int spi_cs_is_valid(unsigned int bus, unsigned int cs)
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{
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return bus == 0 && cs == 0;
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}
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void spi_cs_activate(struct spi_slave *slave)
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{
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immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
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/* active low */
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clrbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
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}
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void spi_cs_deactivate(struct spi_slave *slave)
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{
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immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
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/* inactive high */
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setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
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}
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#endif /* CONFIG_MPC8XXX_SPI */
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#ifdef CONFIG_FSL_ESDHC
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int board_mmc_init(bd_t *bd)
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{
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return fsl_esdhc_mmc_init(bd);
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}
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#endif
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static u8 read_board_info(void)
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{
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u8 val8;
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i2c_set_bus_num(0);
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if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
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return val8;
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else
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return 0;
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}
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int checkboard(void)
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{
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static const char * const rev_str[] = {
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"1.0",
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"<reserved>",
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"<reserved>",
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"<reserved>",
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"<unknown>",
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};
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u8 info;
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int i;
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info = read_board_info();
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i = (!info) ? 4 : info & 0x03;
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printf("Board: Freescale MPC8308RDB Rev %s\n", rev_str[i]);
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return 0;
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}
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static struct pci_region pcie_regions_0[] = {
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{
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.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
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.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
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.size = CONFIG_SYS_PCIE1_MEM_SIZE,
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.flags = PCI_REGION_MEM,
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},
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{
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.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
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.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
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.size = CONFIG_SYS_PCIE1_IO_SIZE,
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.flags = PCI_REGION_IO,
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},
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};
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void pci_init_board(void)
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{
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immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
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sysconf83xx_t *sysconf = &immr->sysconf;
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law83xx_t *pcie_law = sysconf->pcielaw;
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struct pci_region *pcie_reg[] = { pcie_regions_0 };
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fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
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FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
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/* Deassert the resets in the control register */
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out_be32(&sysconf->pecr1, 0xE0008000);
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udelay(2000);
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/* Configure PCI Express Local Access Windows */
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out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
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out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
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mpc83xx_pcie_init(1, pcie_reg);
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}
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/*
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* Miscellaneous late-boot configurations
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*
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* If a VSC7385 microcode image is present, then upload it.
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*/
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int misc_init_r(void)
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{
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#ifdef CONFIG_MPC8XXX_SPI
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immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
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sysconf83xx_t *sysconf = &immr->sysconf;
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/*
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* Set proper bits in SICRH to allow SPI on header J8
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*
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* NOTE: this breaks the TSEC2 interface, attached to the Vitesse
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* switch. The pinmux configuration does not have a fine enough
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* granularity to support both simultaneously.
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*/
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clrsetbits_be32(&sysconf->sicrh, SICRH_GPIO_A_TSEC2, SICRH_GPIO_A_GPIO);
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puts("WARNING: SPI enabled, TSEC2 support is broken\n");
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/* Set header J8 SPI chip select output, disabled */
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setbits_be32(&immr->gpio[0].dir, SPI_CS_MASK);
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setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
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#endif
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#ifdef CONFIG_VSC7385_IMAGE
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if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
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CONFIG_VSC7385_IMAGE_SIZE)) {
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puts("Failure uploading VSC7385 microcode.\n");
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return 1;
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}
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#endif
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return 0;
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}
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#if defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, bd_t *bd)
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{
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ft_cpu_setup(blob, bd);
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fsl_fdt_fixup_dr_usb(blob, bd);
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fdt_fixup_esdhc(blob, bd);
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return 0;
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}
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#endif
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int board_eth_init(bd_t *bis)
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{
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int rv, num_if = 0;
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/* Initialize TSECs first */
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rv = cpu_eth_init(bis);
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if (rv >= 0)
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num_if += rv;
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else
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printf("ERROR: failed to initialize TSECs.\n");
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rv = pci_eth_init(bis);
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if (rv >= 0)
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num_if += rv;
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else
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printf("ERROR: failed to initialize PCI Ethernet.\n");
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return num_if;
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}
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