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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
/*
* Derived from Cavium's BSD-3 Clause OCTEONTX-SDK-6.2.0.
*/
#include <bootmode.h>
#include <console/console.h>
#include <device/device.h>
#include <soc/addressmap.h>
#include <soc/clock.h>
#include <soc/sdram.h>
#include <soc/timer.h>
#include <soc/uart.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <symbols.h>
#include <libbdk-boot/bdk-boot.h>
#include <soc/ecam0.h>
#include <console/uart.h>
#include <libbdk-hal/bdk-pcie.h>
#include <device/pci.h>
#include <libbdk-hal/bdk-qlm.h>
#include <libbdk-hal/bdk-config.h>
#include <libbdk-arch/bdk-csrs-bgx.h>
#include <bootmem.h>
#include <soc/bl31_plat_params.h>
#include <cbfs.h>
#include <cbmem.h>
#include <fit.h>
static const char *QLM_BGX_MODE_MAP[BDK_QLM_MODE_LAST] = {
[BDK_QLM_MODE_SGMII_4X1] = "sgmii",
[BDK_QLM_MODE_SGMII_2X1] = "sgmii",
[BDK_QLM_MODE_SGMII_1X1] = "sgmii",
[BDK_QLM_MODE_XAUI_1X4] = "xaui",
[BDK_QLM_MODE_RXAUI_2X2] = "rxaui",
[BDK_QLM_MODE_RXAUI_1X2] = "rxaui",
[BDK_QLM_MODE_XFI_4X1] = "xfi",
[BDK_QLM_MODE_XFI_2X1] = "xfi",
[BDK_QLM_MODE_XFI_1X1] = "xfi",
[BDK_QLM_MODE_XLAUI_1X4] = "xlaui",
[BDK_QLM_MODE_10G_KR_4X1] = "xfi-10g-kr",
[BDK_QLM_MODE_10G_KR_2X1] = "xfi-10g-kr",
[BDK_QLM_MODE_10G_KR_1X1] = "xfi-10g-kr",
[BDK_QLM_MODE_40G_KR4_1X4] = "xlaui-40g-kr",
[BDK_QLM_MODE_QSGMII_4X1] = "qsgmii",
};
static void dt_platform_fixup_phy(struct device_tree_node *node, char *path,
int64_t phy_address, bdk_qlm_modes_t qlm_mode)
{
const char *data = NULL;
size_t size = 0;
dt_find_bin_prop(node, "qlm-mode", (const void **)&data, &size);
if (!data || strncmp(data, path, 6) != 0)
return; /* No key prefix match. */
printk(BIOS_INFO, "%s: Node %s = %s\n", __func__, node->name, data);
if (strlen(path) == strlen(data) && strcmp(data, path) == 0) {
/* Keep node, remove "qlm-mode" property */
dt_delete_prop(node, "qlm-mode");
printk(BIOS_INFO, "%s: Removing qlm-mode on "
"node %s\n", __func__, node->name);
/* Linux only access the Phy via MDIO.
Remove 'phy-handle' if this option is not available */
switch (qlm_mode) {
case BDK_QLM_MODE_SGMII_4X1:
case BDK_QLM_MODE_SGMII_2X1:
case BDK_QLM_MODE_SGMII_1X1:
case BDK_QLM_MODE_QSGMII_4X1:
if ((phy_address & BDK_IF_PHY_TYPE_MASK) !=
BDK_IF_PHY_MDIO) {
dt_delete_prop(node, "phy-handle");
printk(BIOS_INFO, "%s: Removing phy-handle on "
"node %s\n", __func__, node->name);
}
break;
default:
break;
}
} else {
printk(BIOS_INFO, "%s: Removing node %s\n", __func__,
node->name);
/* No match, remove node */
list_remove(&node->list_node);
}
}
static void dt_iterate_phy(struct device_tree_node *parent,
const char *name,
char *path,
int64_t phy_address,
bdk_qlm_modes_t qlm_mode)
{
struct device_tree_property *prop;
/* Check if parent itself has the required property value. */
list_for_each(prop, parent->properties, list_node) {
if (!strcmp(name, prop->prop.name)) {
dt_platform_fixup_phy(parent, path, phy_address,
qlm_mode);
}
}
struct device_tree_node *child;
list_for_each(child, parent->children, list_node) {
dt_iterate_phy(child, name, path, phy_address, qlm_mode);
}
}
static void dt_platform_fixup_mac(struct device_tree_node *node)
{
const char *name = "local-mac-address";
const u64 *localmac = NULL;
size_t size = 0;
dt_find_bin_prop(node, name, (const void **)&localmac, &size);
if (!localmac)
return;
static size_t used_mac;
/* Extract our MAC address info so we can assign them */
size_t next_free_mac_address =
bdk_config_get_int(BDK_CONFIG_MAC_ADDRESS);
size_t num_free_mac_addresses =
bdk_config_get_int(BDK_CONFIG_MAC_ADDRESS_NUM);
size_t num_free_override =
bdk_config_get_int(BDK_CONFIG_MAC_ADDRESS_NUM_OVERRIDE);
if (num_free_override != -1)
num_free_mac_addresses = num_free_override;
if (size == 6) {
if (*localmac)
return;
if (used_mac < num_free_mac_addresses) {
u64 genmac = next_free_mac_address + used_mac;
dt_add_bin_prop(node, name, &genmac, 6);
used_mac++;
return;
}
}
printk(BIOS_INFO, "%s: Removing node %s\n", __func__, node->name);
list_remove(&node->list_node);
}
static void dt_iterate_mac(struct device_tree_node *parent)
{
struct device_tree_property *prop;
const char *name = "local-mac-address";
/* Check if parent itself has the required property value. */
list_for_each(prop, parent->properties, list_node) {
if (!strcmp(name, prop->prop.name))
dt_platform_fixup_mac(parent);
}
struct device_tree_node *child;
list_for_each(child, parent->children, list_node) {
dt_iterate_mac(child);
}
}
/* Do additional device_tree modifications. */
static int dt_platform_fixup(struct device_tree_fixup *fixup,
struct device_tree *tree)
{
struct device_tree_node *dt_node;
size_t i;
/* Set the sclk clock rate. */
dt_node = dt_find_node_by_path(tree, "/soc@0/sclk", NULL, NULL, 0);
if (dt_node) {
const u32 freq = thunderx_get_io_clock();
printk(BIOS_INFO, "%s: Set SCLK to %u Hz\n", __func__, freq);
dt_add_u32_prop(dt_node, "clock-frequency", freq);
} else
printk(BIOS_ERR, "%s: Node not found. OS might miss-behave !\n",
__func__);
/* Set refclkuaa clock rate. */
dt_node = dt_find_node_by_path(tree, "/soc@0/refclkuaa", NULL,
NULL, 0);
if (dt_node) {
const u32 freq = uart_platform_refclk();
printk(BIOS_INFO, "%s: Set REFCLKUAA to %u Hz\n", __func__,
freq);
dt_add_u32_prop(dt_node, "clock-frequency", freq);
} else
printk(BIOS_ERR, "%s: Node not found. OS might miss-behave !\n",
__func__);
/* Remove unused UART entries */
for (i = 0; i < 4; i++) {
char path[32];
const uint64_t addr = UAAx_PF_BAR0(i);
/* Remove the node */
snprintf(path, sizeof(path), "/soc@0/serial@%llx", addr);
dt_node = dt_find_node_by_path(tree, path, NULL, NULL, 0);
if (!dt_node || uart_is_enabled(i)) {
printk(BIOS_INFO, "%s: ignoring %s\n", __func__, path);
continue;
}
printk(BIOS_INFO, "%s: Removing node %s\n", __func__, path);
list_remove(&dt_node->list_node);
}
/* Remove unused PEM entries */
for (i = 0; i < 8; i++) {
char path[32];
u32 phandle = 0;
const uint64_t addr = PEM_PEMX_PF_BAR0(i);
/* Remove the node */
snprintf(path, sizeof(path), "/soc@0/pci@%llx", addr);
dt_node = dt_find_node_by_path(tree, path, NULL, NULL, 0);
if (!dt_node || bdk_pcie_is_running(0, i)) {
printk(BIOS_INFO, "%s: ignoring %s\n", __func__, path);
continue;
}
/* Store the phandle */
phandle = dt_node->phandle;
printk(BIOS_INFO, "%s: Removing node %s\n", __func__, path);
list_remove(&dt_node->list_node);
/* Remove phandle to non existing nodes */
snprintf(path, sizeof(path), "/soc@0/smmu0@%llx", SMMU_PF_BAR0);
dt_node = dt_find_node_by_path(tree, path, NULL, NULL, 0);
if (!dt_node) {
printk(BIOS_ERR, "%s: SMMU entry not found\n",
__func__);
continue;
}
const u32 *data = NULL;
size_t size = 0;
dt_find_bin_prop(dt_node, "mmu-masters", (const void **)&data,
&size);
if (!size) {
printk(BIOS_ERR, "%s: mmu-masters entry not found\n",
__func__);
continue;
}
u32 *data_cleaned = malloc(size);
if (!data_cleaned)
continue;
size_t n = 0;
/* Remove phandle from mmu-masters list */
for (size_t j = 0; j < size / (sizeof(u32) * 2); j++)
if (be32_to_cpu(data[j * 2]) != phandle) {
data_cleaned[n * 2] = data[j * 2];
data_cleaned[n * 2 + 1] = data[j * 2 + 1];
n++;
}
dt_add_bin_prop(dt_node, "mmu-masters", data_cleaned,
n * sizeof(u32) * 2);
free(data_cleaned);
}
/* Remove QLM mode entries */
size_t bgx_index, bgx_iface;
for (bgx_iface = 0; bgx_iface < 4; bgx_iface++) {
for (bgx_index = 0; bgx_index < 4; bgx_index++) {
char path[32];
int qlm = bdk_qlm_get_qlm_num(0, BDK_IF_BGX,
bgx_iface, bgx_index);
bdk_qlm_modes_t qlm_mode = (qlm == -1) ?
BDK_QLM_MODE_DISABLED :
bdk_qlm_get_mode(0, qlm);
/* BGXX_CMRX_RX_DMAC_CTL is used to mark ports as
* disabled that would otherwise be enabled */
if (qlm_mode != BDK_QLM_MODE_DISABLED) {
BDK_CSR_INIT(rx_dmac_ctl, 0,
BDK_BGXX_CMRX_RX_DMAC_CTL(bgx_iface,
bgx_index));
if (rx_dmac_ctl.u == 0)
qlm_mode = BDK_QLM_MODE_DISABLED;
}
if (qlm_mode == BDK_QLM_MODE_DISABLED)
snprintf(path, sizeof(path), "0x0%x%x,disabled",
bgx_iface, bgx_index);
else
snprintf(path, sizeof(path), "0x0%x%x,%s",
bgx_iface, bgx_index,
QLM_BGX_MODE_MAP[qlm_mode]);
int64_t phy_address =
bdk_config_get_int(BDK_CONFIG_PHY_ADDRESS, 0,
bgx_iface, bgx_index);
dt_iterate_phy(tree->root, "qlm-mode", path,
phy_address, qlm_mode);
}
}
/* Set local MAC address */
dt_iterate_mac(tree->root);
return 0;
}
extern u8 _sff8104[];
extern u8 _esff8104[];
void bootmem_platform_add_ranges(void)
{
bootmem_add_range((uintptr_t)_sff8104,
((uintptr_t)_esff8104 - (uintptr_t)_sff8104),
BM_MEM_RESERVED);
/* Scratchpad for ATF SATA quirks */
bootmem_add_range((sdram_size_mb() - 1) * MiB, 1 * MiB,
BM_MEM_RESERVED);
}
static void soc_read_resources(struct device *dev)
{
// HACK: Don't advertise bootblock romstage CAR region, it's broken...
ram_resource(dev, 0, 2 * KiB, sdram_size_mb() * KiB - 2 * KiB);
}
static void soc_init_atf(void)
{
static struct bl31_fdt_param fdt_param = {
.h = { .type = PARAM_FDT, },
};
size_t size = 0;
void *ptr = cbfs_boot_map_with_leak("sff8104-linux.dtb",
CBFS_TYPE_RAW, &size);
if (ptr)
memcpy(_sff8104, ptr, size);
/* Point to devicetree in secure memory */
fdt_param.fdt_ptr = (uintptr_t)_sff8104;
cn81xx_register_bl31_param(&fdt_param.h);
static struct bl31_u64_param cbtable_param = {
.h = { .type = PARAM_COREBOOT_TABLE, },
};
/* Point to coreboot tables */
cbtable_param.value = (uint64_t)cbmem_find(CBMEM_ID_CBTABLE);
if (cbtable_param.value)
cn81xx_register_bl31_param(&cbtable_param.h);
}
static void soc_init(struct device *dev)
{
/* Init ECAM, MDIO, PEM, PHY, QLM ... */
bdk_boot();
if (CONFIG(PAYLOAD_FIT_SUPPORT)) {
struct device_tree_fixup *dt_fixup;
dt_fixup = malloc(sizeof(*dt_fixup));
if (dt_fixup) {
dt_fixup->fixup = dt_platform_fixup;
list_insert_after(&dt_fixup->list_node,
&device_tree_fixups);
}
}
if (CONFIG(ARM64_USE_ARM_TRUSTED_FIRMWARE))
soc_init_atf();
}
static void soc_final(struct device *dev)
{
watchdog_disable(0);
}
static struct device_operations soc_ops = {
.read_resources = soc_read_resources,
.set_resources = noop_set_resources,
.init = soc_init,
.final = soc_final,
};
static void enable_soc_dev(struct device *dev)
{
if (dev->path.type == DEVICE_PATH_DOMAIN &&
dev->path.domain.domain == 0) {
dev->ops = &pci_domain_ops_ecam0;
} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
dev->ops = &soc_ops;
}
}
struct chip_operations soc_cavium_cn81xx_ops = {
CHIP_NAME("SOC Cavium CN81XX")
.enable_dev = enable_soc_dev,
};
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