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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019 Microchip Technology Inc.
* Padmarao Begari <padmarao.begari@microchip.com>
*/
#include <dm.h>
#include <env.h>
#include <init.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/sections.h>
DECLARE_GLOBAL_DATA_PTR;
#define MPFS_SYSREG_SOFT_RESET ((unsigned int *)0x20002088)
#define MPFS_SYS_SERVICE_CR ((unsigned int *)0x37020050)
#define MPFS_SYS_SERVICE_SR ((unsigned int *)0x37020054)
#define MPFS_SYS_SERVICE_MAILBOX ((unsigned char *)0x37020800)
#define PERIPH_RESET_VALUE 0x1e8u
#define SERVICE_CR_REQ 0x1u
#define SERVICE_SR_BUSY 0x2u
static void read_device_serial_number(u8 *response, u8 response_size)
{
u8 idx;
u8 *response_buf;
unsigned int val;
response_buf = (u8 *)response;
writel(SERVICE_CR_REQ, MPFS_SYS_SERVICE_CR);
/*
* REQ bit will remain set till the system controller starts
* processing.
*/
do {
val = readl(MPFS_SYS_SERVICE_CR);
} while (SERVICE_CR_REQ == (val & SERVICE_CR_REQ));
/*
* Once system controller starts processing the busy bit will
* go high and service is completed when busy bit is gone low
*/
do {
val = readl(MPFS_SYS_SERVICE_SR);
} while (SERVICE_SR_BUSY == (val & SERVICE_SR_BUSY));
for (idx = 0; idx < response_size; idx++)
response_buf[idx] = readb(MPFS_SYS_SERVICE_MAILBOX + idx);
}
#if defined(CONFIG_MULTI_DTB_FIT)
int board_fit_config_name_match(const char *name)
{
const void *fdt;
int list_len;
/*
* If there's not a HSS provided dtb, there's no point re-selecting
* since we'd just end up re-selecting the same dtb again.
*/
if (!gd->arch.firmware_fdt_addr)
return -EINVAL;
fdt = (void *)gd->arch.firmware_fdt_addr;
list_len = fdt_stringlist_count(fdt, 0, "compatible");
if (list_len < 1)
return -EINVAL;
for (int i = 0; i < list_len; i++) {
int len, match;
const char *compat;
char *devendored;
compat = fdt_stringlist_get(fdt, 0, "compatible", i, &len);
if (!compat)
return -EINVAL;
strtok((char *)compat, ",");
devendored = strtok(NULL, ",");
if (!devendored)
return -EINVAL;
match = strcmp(devendored, name);
if (!match)
return 0;
}
return -EINVAL;
}
#endif
int board_fdt_blob_setup(void **fdtp)
{
fdtp = (void *)_end;
/*
* The devicetree provided by the previous stage is very minimal due to
* severe space constraints. The firmware performs no fixups etc.
* U-Boot, if providing a devicetree, almost certainly has a better
* more complete one than the firmware so that provided by the firmware
* is ignored for OF_SEPARATE.
*/
if (IS_ENABLED(CONFIG_OF_BOARD) && !IS_ENABLED(CONFIG_MULTI_DTB_FIT)) {
if (gd->arch.firmware_fdt_addr)
fdtp = (void *)(uintptr_t)gd->arch.firmware_fdt_addr;
}
return 0;
}
int board_init(void)
{
/* For now nothing to do here. */
return 0;
}
int board_early_init_f(void)
{
unsigned int val;
/* Reset uart, mmc peripheral */
val = readl(MPFS_SYSREG_SOFT_RESET);
val = (val & ~(PERIPH_RESET_VALUE));
writel(val, MPFS_SYSREG_SOFT_RESET);
return 0;
}
int board_late_init(void)
{
u32 ret;
int node;
u8 idx;
u8 device_serial_number[16] = { 0 };
unsigned char mac_addr[6];
char icicle_mac_addr[20];
void *blob = (void *)gd->fdt_blob;
read_device_serial_number(device_serial_number, 16);
/* Update MAC address with device serial number */
mac_addr[0] = 0x00;
mac_addr[1] = 0x04;
mac_addr[2] = 0xA3;
mac_addr[3] = device_serial_number[2];
mac_addr[4] = device_serial_number[1];
mac_addr[5] = device_serial_number[0];
node = fdt_path_offset(blob, "/soc/ethernet@20112000");
if (node >= 0) {
ret = fdt_setprop(blob, node, "local-mac-address", mac_addr, 6);
if (ret) {
printf("Error setting local-mac-address property for ethernet@20112000\n");
return -ENODEV;
}
}
icicle_mac_addr[0] = '[';
sprintf(&icicle_mac_addr[1], "%pM", mac_addr);
icicle_mac_addr[18] = ']';
icicle_mac_addr[19] = '\0';
for (idx = 0; idx < 20; idx++) {
if (icicle_mac_addr[idx] == ':')
icicle_mac_addr[idx] = ' ';
}
env_set("icicle_mac_addr0", icicle_mac_addr);
mac_addr[5] = device_serial_number[0] + 1;
node = fdt_path_offset(blob, "/soc/ethernet@20110000");
if (node >= 0) {
ret = fdt_setprop(blob, node, "local-mac-address", mac_addr, 6);
if (ret) {
printf("Error setting local-mac-address property for ethernet@20110000\n");
return -ENODEV;
}
}
icicle_mac_addr[0] = '[';
sprintf(&icicle_mac_addr[1], "%pM", mac_addr);
icicle_mac_addr[18] = ']';
icicle_mac_addr[19] = '\0';
for (idx = 0; idx < 20; idx++) {
if (icicle_mac_addr[idx] == ':')
icicle_mac_addr[idx] = ' ';
}
env_set("icicle_mac_addr1", icicle_mac_addr);
return 0;
}
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