mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-30 06:53:09 +00:00
5c007d24b9
This patch updates Microchip MPFS Icicle Kit support. For now, add Microchip I2C driver, set environment variables for mac addresses and default build for SBI_V02. Signed-off-by: Padmarao Begari <padmarao.begari@microchip.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
140 lines
3.1 KiB
C
140 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2019 Microchip Technology Inc.
|
|
* Padmarao Begari <padmarao.begari@microchip.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <env.h>
|
|
#include <init.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/io.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);
|
|
}
|
|
|
|
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;
|
|
u32 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;
|
|
|
|
node = fdt_path_offset(blob, "ethernet0");
|
|
if (node < 0) {
|
|
printf("No ethernet0 path offset\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = fdtdec_get_byte_array(blob, node, "local-mac-address", mac_addr, 6);
|
|
if (ret) {
|
|
printf("No local-mac-address property\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
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];
|
|
|
|
ret = fdt_setprop(blob, node, "local-mac-address", mac_addr, 6);
|
|
if (ret) {
|
|
printf("Error setting local-mac-address property\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;
|
|
|
|
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;
|
|
}
|