diff options
Diffstat (limited to 'src/mainboard/siemens/mc_bdx1/mainboard.c')
-rw-r--r-- | src/mainboard/siemens/mc_bdx1/mainboard.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/src/mainboard/siemens/mc_bdx1/mainboard.c b/src/mainboard/siemens/mc_bdx1/mainboard.c deleted file mode 100644 index 4f9c8406c6..0000000000 --- a/src/mainboard/siemens/mc_bdx1/mainboard.c +++ /dev/null @@ -1,273 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2009 coresystems GmbH - * Copyright (C) 2011 Google Inc. - * Copyright (C) 2016-2018 Siemens AG - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <types.h> -#include <string.h> -#include <device/device.h> -#include <device/pci_def.h> -#include <device/pci_ops.h> -#include <device/pci_ids.h> -#include <device/path.h> -#include <console/console.h> -#if CONFIG(VGA_ROM_RUN) -#include <x86emu/x86emu.h> -#endif -#include <device/mmio.h> -#include <hwilib.h> -#include <i210.h> -#include <soc/pci_devs.h> -#include <soc/irq.h> -#include <soc/lpc.h> -#include <bootstate.h> -#include <timer.h> -#include <timestamp.h> -#include <pca9538.h> - -#define MAX_PATH_DEPTH 12 -#define MAX_NUM_MAPPINGS 10 - -/* - * SPI Opcode Menu setup for SPIBAR lock down - * should support most common flash chips. - */ -#define SPI_OPMENU_0 0x01 /* WRSR: Write Status Register */ -#define SPI_OPTYPE_0 0x01 /* Write, no address */ - -#define SPI_OPMENU_1 0x02 /* BYPR: Byte Program */ -#define SPI_OPTYPE_1 0x03 /* Write, address required */ - -#define SPI_OPMENU_2 0x03 /* READ: Read Data */ -#define SPI_OPTYPE_2 0x02 /* Read, address required */ - -#define SPI_OPMENU_3 0x05 /* RDSR: Read Status Register */ -#define SPI_OPTYPE_3 0x00 /* Read, no address */ - -#define SPI_OPMENU_4 0x20 /* SE20: Sector Erase 0x20 */ -#define SPI_OPTYPE_4 0x03 /* Write, address required */ - -#define SPI_OPMENU_5 0x9f /* RDID: Read ID */ -#define SPI_OPTYPE_5 0x00 /* Read, no address */ - -#define SPI_OPMENU_6 0xd8 /* BED8: Block Erase 0xd8 */ -#define SPI_OPTYPE_6 0x03 /* Write, address required */ - -#define SPI_OPMENU_7 0x0b /* FAST: Fast Read */ -#define SPI_OPTYPE_7 0x02 /* Read, address required */ - -#define SPI_OPMENU_UPPER ((SPI_OPMENU_7 << 24) | (SPI_OPMENU_6 << 16) | \ - (SPI_OPMENU_5 << 8) | SPI_OPMENU_4) -#define SPI_OPMENU_LOWER ((SPI_OPMENU_3 << 24) | (SPI_OPMENU_2 << 16) | \ - (SPI_OPMENU_1 << 8) | SPI_OPMENU_0) - -#define SPI_OPTYPE ((SPI_OPTYPE_7 << 14) | (SPI_OPTYPE_6 << 12) | \ - (SPI_OPTYPE_5 << 10) | (SPI_OPTYPE_4 << 8) | \ - (SPI_OPTYPE_3 << 6) | (SPI_OPTYPE_2 << 4) | \ - (SPI_OPTYPE_1 << 2) | (SPI_OPTYPE_0)) - -#define SPI_OPPREFIX ((0x50 << 8) | 0x06) /* EWSR and WREN */ - -#define SPIBAR_OFFSET 0x3800 -#define SPI_REG_PREOP 0x94 -#define SPI_REG_OPTYPE 0x96 -#define SPI_REG_OPMENU_L 0x98 -#define SPI_REG_OPMENU_H 0x9c - -/* Define the slave address for the I/O expander. */ -#define PCA9538_SLAVE_ADR 0x71 -/* - * mainboard_enable is executed as first thing after enumerate_buses(). - * This is the earliest point to add customization. - */ -static void mainboard_enable(struct device *dev) -{ - -} - -static void mainboard_init(void *chip_info) -{ - uint8_t actl = 0; - struct device *dev = pcidev_on_root(LPC_DEV, LPC_FUNC); - - /* Route SCI to IRQ 10 to free IRQ 9 slot. */ - actl = pci_read_config8(dev, ACPI_CNTL_OFFSET); - actl &= ~SCIS_MASK; - actl |= SCIS_IRQ10; - pci_write_config8(dev, ACPI_CNTL_OFFSET, actl); - - /* Enable additional I/O decoding ranges on LPC for COM 3 and COM 4 */ - pci_write_config32(dev, LPC_GEN1_DEC, 0x1C02E9); - pci_write_config32(dev, LPC_GEN2_DEC, 0x1C03E9); -} - -static void mainboard_final(void *chip_info) -{ - void *spi_base = NULL; - uint32_t rcba = 0; - struct device *dev = pcidev_on_root(LPC_DEV, LPC_FUNC); - - /* Get address of SPI controller. */ - rcba = (pci_read_config32(dev, 0xf0) & 0xffffc000); - if (!rcba) - return; - spi_base = (void *)(rcba + SPIBAR_OFFSET); - /* Setup OPCODE menu */ - write16((spi_base + SPI_REG_PREOP), SPI_OPPREFIX); - write16((spi_base + SPI_REG_OPTYPE), SPI_OPTYPE); - write32((spi_base + SPI_REG_OPMENU_L), SPI_OPMENU_LOWER); - write32((spi_base + SPI_REG_OPMENU_H), SPI_OPMENU_UPPER); - - /* Set Master Enable for on-board PCI devices. */ - dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403e, 0); - if (dev) { - uint16_t cmd = pci_read_config16(dev, PCI_COMMAND); - cmd |= PCI_COMMAND_MASTER; - pci_write_config16(dev, PCI_COMMAND, cmd); - } - dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403f, 0); - if (dev) { - uint16_t cmd = pci_read_config16(dev, PCI_COMMAND); - cmd |= PCI_COMMAND_MASTER; - pci_write_config16(dev, PCI_COMMAND, cmd); - } - /* Show the mainboard version well-visible on console. */ - printk(BIOS_NOTICE, "***************************\n" - "* Mainboard version: 0x%02x *\n" - "***************************\n", - pca9538_read_input()); -} - -/** \brief This function can decide if a given MAC address is valid or not. - * Currently, addresses filled with 0xff or 0x00 are not valid. - * @param mac Buffer to the MAC address to check - * @return 0 if address is not valid, otherwise 1 - */ -static uint8_t is_mac_adr_valid(uint8_t mac[6]) -{ - uint8_t buf[6]; - - memset(buf, 0, sizeof(buf)); - if (!memcmp(buf, mac, sizeof(buf))) - return 0; - memset(buf, 0xff, sizeof(buf)); - if (!memcmp(buf, mac, sizeof(buf))) - return 0; - return 1; -} - /** \brief This function will search for a MAC address which can be assigned - * to a MACPHY. - * @param dev pointer to PCI device - * @param mac buffer where to store the MAC address - * @return cb_err CB_ERR or CB_SUCCESS - */ -enum cb_err mainboard_get_mac_address(struct device *dev, uint8_t mac[6]) -{ - struct bus *parent = dev->bus; - uint8_t buf[16], mapping[16], i = 0, chain_len = 0; - - memset(buf, 0, sizeof(buf)); - memset(mapping, 0, sizeof(mapping)); - - /* The first entry in the tree is the device itself. */ - buf[0] = dev->path.pci.devfn; - chain_len = 1; - for (i = 1; i < MAX_PATH_DEPTH && parent->dev->bus->subordinate; i++) { - buf[i] = parent->dev->path.pci.devfn; - chain_len++; - parent = parent->dev->bus; - } - if (i == MAX_PATH_DEPTH) { - /* The path is deeper than MAX_PATH_DEPTH devices, error. */ - printk(BIOS_ERR, "Too many bridges for %s\n", dev_path(dev)); - return CB_ERR; - } - /* Now construct the mapping based on the device chain starting from */ - /* root bridge device to the device itself. */ - mapping[0] = 1; - mapping[1] = chain_len; - for (i = 0; i < chain_len; i++) - mapping[i + 4] = buf[chain_len - i - 1]; - - /* Open main hwinfo block */ - if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS) - return CB_ERR; - /* Now try to find a valid MAC address in hwinfo for this mapping.*/ - for (i = 0; i < MAX_NUM_MAPPINGS; i++) { - if ((hwilib_get_field(XMac1Mapping + i, buf, 16) == 16) && - !(memcmp(buf, mapping, chain_len + 4))) { - /* There is a matching mapping available, get MAC address. */ - if ((hwilib_get_field(XMac1 + i, mac, 6) == 6) && - (is_mac_adr_valid(mac))) { - return CB_SUCCESS; - } else { - return CB_ERR; - } - } else - continue; - } - /* No MAC address found for */ - return CB_ERR; -} - -static void wait_for_legacy_dev(void *unused) -{ - uint32_t legacy_delay, us_since_boot; - struct stopwatch sw; - - /* Open main hwinfo block. */ - if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS) - return; - - /* Get legacy delay parameter from hwinfo. */ - if (hwilib_get_field(LegacyDelay, (uint8_t *) &legacy_delay, - sizeof(legacy_delay)) != sizeof(legacy_delay)) - return; - - us_since_boot = get_us_since_boot(); - /* No need to wait if the time since boot is already long enough.*/ - if (us_since_boot > legacy_delay) - return; - stopwatch_init_msecs_expire(&sw, (legacy_delay - us_since_boot) / 1000); - printk(BIOS_NOTICE, "Wait remaining %d of %d us for legacy devices...", - legacy_delay - us_since_boot, legacy_delay); - stopwatch_wait_until_expired(&sw); - printk(BIOS_NOTICE, "done!\n"); -} - -/* - * To access the I/O expander PCA9538 we need to know its device structure. - * This function will provide it as mainboard code has the knowledge of the - * right I2C slave address for the I/O expander. - */ -struct device *pca9538_get_dev(void) -{ - struct device *dev = NULL; - - while ((dev = dev_find_path(dev, DEVICE_PATH_I2C))) { - if (dev->path.i2c.device == PCA9538_SLAVE_ADR) - break; - } - return dev; -} - - -BOOT_STATE_INIT_ENTRY(BS_DEV_ENUMERATE, BS_ON_ENTRY, wait_for_legacy_dev, NULL); - -struct chip_operations mainboard_ops = { - .enable_dev = mainboard_enable, - .init = mainboard_init, - .final = mainboard_final -}; |