soc/intel/fsp_baytrail: Drop support

Relocatable ramstage, postcar stage and C_ENVIRONMENT_BOOTBLOCK are
now mandatory features, which this platform lacks.

Change-Id: I0b0344f1ebed12207a77c985f27893a1353c0925
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36982
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>

1 files changed, 0 insertions, 294 deletions

diff --git a/src/soc/intel/fsp_baytrail/i2c.c b/src/soc/intel/fsp_baytrail/i2c.c
deleted file mode 100644
index 37ce2d0b21..0000000000
--- a/src/soc/intel/fsp_baytrail/i2c.c
+++ /dev/null
@@ -1,294 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014-2019 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 <cbmem.h>
-#include <console/console.h>
-#include <device/device.h>
-#include <device/pci_def.h>
-#include <device/pci.h>
-#include <device/pci_ids.h>
-#include <drivers/i2c/designware/dw_i2c.h>
-#include <soc/i2c.h>
-#include <soc/iosf.h>
-#include <soc/iomap.h>
-#include <soc/nvs.h>
-#include <soc/pci_devs.h>
-
-#include "chip.h"
-
-/* Convert I2C bus number to PCI device and function */
-int dw_i2c_soc_bus_to_devfn(unsigned int bus)
-{
-	if (bus <= 6)
-		return PCI_DEVFN(SIO1_DEV, bus + 1);
-	else
-		return -1;
-}
-
-/* Convert PCI device and function to I2C bus number */
-int dw_i2c_soc_dev_to_bus(struct device *dev)
-{
-	pci_devfn_t devfn = dev->path.pci.devfn;
-	if ((devfn >= SOC_DEVFN_I2C1) && (devfn <= SOC_DEVFN_I2C7))
-		return PCI_FUNC(devfn) - 1;
-	else
-		return -1;
-}
-
-/* Getting I2C bus configuration from devicetree config */
-const struct dw_i2c_bus_config *dw_i2c_get_soc_cfg(unsigned int bus)
-{
-	const struct soc_intel_fsp_baytrail_config *config;
-	const struct device *dev = pcidev_path_on_root(SOC_DEVFN_SOC);
-
-	if (dev && dev->chip_info) {
-		config = dev->chip_info;
-		return &config->i2c[bus];
-	}
-
-	die("Could not find SA_DEV_ROOT devicetree config!\n");
-}
-
-#if !ENV_RAMSTAGE
-static int lpss_i2c_early_init_bus(unsigned int bus)
-{
-	const struct dw_i2c_bus_config *config;
-	const struct device *tree_dev;
-	pci_devfn_t dev;
-	int devfn;
-	uintptr_t base;
-
-	/* Find the PCI device for this bus controller */
-	devfn = dw_i2c_soc_bus_to_devfn(bus);
-	if (devfn < 0) {
-		printk(BIOS_ERR, "I2C%u device not found\n", bus);
-		return -1;
-	}
-
-	/* Look up the controller device in the devicetree */
-	dev = PCI_DEV(0, PCI_SLOT(devfn), PCI_FUNC(devfn));
-	tree_dev = pcidev_path_on_root(devfn);
-	if (!tree_dev || !tree_dev->enabled) {
-		printk(BIOS_ERR, "I2C%u device not enabled\n", bus);
-		return -1;
-	}
-
-	/* Skip if not enabled for early init */
-	config = dw_i2c_get_soc_cfg(bus);
-	if (!config || !config->early_init) {
-		printk(BIOS_DEBUG, "I2C%u not enabled for early init\n", bus);
-		return -1;
-	}
-
-	/* Prepare early base address for access before memory */
-	base = EARLY_I2C_BASE(bus);
-	pci_write_config32(dev, PCI_BASE_ADDRESS_0, base);
-	pci_write_config32(dev, PCI_COMMAND,
-			   PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
-
-	/* Take device out of reset */
-	write32((void *)((uint32_t)base + I2C_SOFTWARE_RESET), I2C_RESET_APB | I2C_RESET_FUNC);
-
-	/* Initialize the controller */
-	if (dw_i2c_init(bus, config) < 0) {
-		printk(BIOS_ERR, "I2C%u failed to initialize\n", bus);
-		return -1;
-	}
-
-	return 0;
-}
-
-uintptr_t dw_i2c_base_address(unsigned int bus)
-{
-	int devfn;
-	pci_devfn_t dev;
-	uintptr_t base;
-
-	/* Find device+function for this controller */
-	devfn = dw_i2c_soc_bus_to_devfn(bus);
-	if (devfn < 0)
-		return 0;
-
-	/* Form a PCI address for this device */
-	dev = PCI_DEV(0, PCI_SLOT(devfn), PCI_FUNC(devfn));
-
-	/* Read the first base address for this device */
-	base = pci_read_config32(dev, PCI_BASE_ADDRESS_0) & 0xfffffff0;
-
-	/* Attempt to initialize bus if base is not set yet */
-	if (!base && !lpss_i2c_early_init_bus(bus))
-		base = pci_read_config32(dev, PCI_BASE_ADDRESS_0) & 0xfffffff0;
-	return base;
-}
-#else
-
-uintptr_t dw_i2c_base_address(unsigned int bus)
-{
-	int devfn;
-	struct device *dev;
-	struct resource *bar = NULL;
-
-	/* bus -> devfn */
-	devfn = dw_i2c_soc_bus_to_devfn(bus);
-
-	if (devfn < 0)
-		return (uintptr_t)NULL;
-
-	/* devfn -> dev */
-	dev = pcidev_path_on_root(devfn);
-	if (dev && dev->enabled) {
-		/* dev -> bar0 */
-		bar = find_resource(dev, PCI_BASE_ADDRESS_0);
-	}
-
-	if (bar)
-		return bar->base;
-	else
-		return (uintptr_t)NULL;
-}
-
-static void i2c_enable_acpi_mode(struct device *dev, int iosf_reg, int nvs_index)
-{
-	struct resource *bar;
-	global_nvs_t *gnvs;
-	uint32_t val;
-
-	/* Find ACPI NVS to update BARs */
-	gnvs = (global_nvs_t *)cbmem_find(CBMEM_ID_ACPI_GNVS);
-	if (!gnvs) {
-		printk(BIOS_ERR, "Unable to locate Global NVS\n");
-		return;
-	}
-
-	/* Save BAR0 and BAR1 to ACPI NVS */
-	bar = find_resource(dev, PCI_BASE_ADDRESS_0);
-	if (bar)
-		gnvs->dev.lpss_bar0[nvs_index] = (uint32_t)bar->base;
-
-	bar = find_resource(dev, PCI_BASE_ADDRESS_1);
-	if (bar)
-		gnvs->dev.lpss_bar1[nvs_index] = (uint32_t)bar->base;
-
-	/* Device is enabled in ACPI mode */
-	gnvs->dev.lpss_en[nvs_index] = 1;
-
-	/* Put device in ACPI mode */
-	val = iosf_lpss_read(iosf_reg);
-	val |= (LPSS_CTL_PCI_CFG_DIS | LPSS_CTL_ACPI_INT_EN);
-	iosf_lpss_write(iosf_reg, val);
-	val = pci_read_config32(dev, PCI_COMMAND);
-	val |= PCI_COMMAND_INT_DISABLE;
-	pci_write_config32(dev, PCI_COMMAND, val);
-}
-
-static void dev_enable_snoop_and_pm(struct device *dev, int iosf_reg)
-{
-	uint32_t val;
-
-	val = iosf_lpss_read(iosf_reg);
-	val &= ~(LPSS_CTL_SNOOP | LPSS_CTL_NOSNOOP);
-	val |= (LPSS_CTL_SNOOP | LPSS_CTL_PM_CAP_PRSNT);
-	iosf_lpss_write(iosf_reg, val);
-}
-
-static void dev_ctl_reg(struct device *dev, int *iosf_reg, int *nvs_index)
-{
-	int bus;
-
-	bus = dw_i2c_soc_dev_to_bus(dev);
-	if (bus >= 0) {
-		*iosf_reg = LPSS_I2C1_CTL + (bus * 8);
-		*nvs_index = bus + 1;
-	} else {
-
-		*iosf_reg = -1;
-		*nvs_index = -1;
-	}
-}
-
-static void i2c_disable_resets(struct device *dev)
-{
-	uint32_t base;
-
-	printk(BIOS_DEBUG, "Releasing I2C device from reset.\n");
-	base = pci_read_config32(dev, PCI_BASE_ADDRESS_0) & 0xfffffff0;
-	write32((void *)(base + I2C_SOFTWARE_RESET), I2C_RESET_APB | I2C_RESET_FUNC);
-}
-
-static void i2c_lpss_init(struct device *dev)
-{
-	struct soc_intel_fsp_baytrail_config *config = dev->chip_info;
-	int iosf_reg, nvs_index;
-
-	dev_ctl_reg(dev, &iosf_reg, &nvs_index);
-
-	if (iosf_reg < 0) {
-		int slot = PCI_SLOT(dev->path.pci.devfn);
-		int func = PCI_FUNC(dev->path.pci.devfn);
-		printk(BIOS_DEBUG, "Could not find iosf_reg for %02x.%01x\n",
-		       slot, func);
-		return;
-	}
-	dev_enable_snoop_and_pm(dev, iosf_reg);
-	i2c_disable_resets(dev);
-
-	if (config && (config->PcdLpssSioEnablePciMode == LPSS_PCI_MODE_DISABLE))
-		i2c_enable_acpi_mode(dev, iosf_reg, nvs_index);
-}
-/*
- * This function ensures that the device is actually out of reset and
- * it is ready for initialization sequence.
- */
-static void dw_i2c_device_init(struct device *dev)
-{
-	int bus = dw_i2c_soc_dev_to_bus(dev);
-
-	if (bus < 0)
-		return;
-
-	if (!dw_i2c_base_address(bus))
-		return;
-	i2c_lpss_init(dev);
-	dw_i2c_dev_init(dev);
-}
-
-static struct device_operations i2c_dev_ops = {
-	.read_resources			= pci_dev_read_resources,
-	.set_resources			= pci_dev_set_resources,
-	.enable_resources		= pci_dev_enable_resources,
-	.scan_bus			= scan_smbus,
-	.ops_i2c_bus			= &dw_i2c_bus_ops,
-	.ops_pci			= &pci_dev_ops_pci,
-	.init				= dw_i2c_device_init,
-	.acpi_fill_ssdt_generator	= dw_i2c_acpi_fill_ssdt,
-};
-
-static const unsigned short pci_device_ids[] = {
-	I2C1_DEVID,
-	I2C2_DEVID,
-	I2C3_DEVID,
-	I2C4_DEVID,
-	I2C5_DEVID,
-	I2C6_DEVID,
-	I2C7_DEVID,
-	0
-};
-
-static const struct pci_driver pch_i2c __pci_driver = {
-	.ops	 = &i2c_dev_ops,
-	.vendor	 = PCI_VENDOR_ID_INTEL,
-	.devices = pci_device_ids,
-};
-#endif