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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
190 lines
4.0 KiB
C
190 lines
4.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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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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#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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