u-boot/board/mscc/jr2/jr2.c
Horatiu Vultur c75c908316 MSCC: Add board support for Jaguar2 SOC family
Add board support and configuration for Jaguar2 SOC family.
The detection of the board type in this family is based on the phy ids.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
2019-01-16 13:56:43 +01:00

115 lines
2.4 KiB
C

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (c) 2018 Microsemi Corporation
*/
#include <common.h>
#include <asm/io.h>
#include <led.h>
enum {
BOARD_TYPE_PCB110 = 0xAABBCE00,
BOARD_TYPE_PCB111,
BOARD_TYPE_PCB112,
};
int board_early_init_r(void)
{
/* Prepare SPI controller to be used in master mode */
writel(0, BASE_CFG + ICPU_SW_MODE);
clrsetbits_le32(BASE_CFG + ICPU_GENERAL_CTRL,
ICPU_GENERAL_CTRL_IF_SI_OWNER_M,
ICPU_GENERAL_CTRL_IF_SI_OWNER(2));
/* Address of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE;
/* LED setup */
if (IS_ENABLED(CONFIG_LED))
led_default_state();
return 0;
}
static void vcoreiii_gpio_set_alternate(int gpio, int mode)
{
u32 mask;
u32 val0, val1;
void __iomem *reg0, *reg1;
if (gpio < 32) {
mask = BIT(gpio);
reg0 = BASE_DEVCPU_GCB + GPIO_GPIO_ALT(0);
reg1 = BASE_DEVCPU_GCB + GPIO_GPIO_ALT(1);
} else {
gpio -= 32;
mask = BIT(gpio);
reg0 = BASE_DEVCPU_GCB + GPIO_GPIO_ALT1(0);
reg1 = BASE_DEVCPU_GCB + GPIO_GPIO_ALT1(1);
}
val0 = readl(reg0);
val1 = readl(reg1);
if (mode == 1) {
writel(val0 | mask, reg0);
writel(val1 & ~mask, reg1);
} else if (mode == 2) {
writel(val0 & ~mask, reg0);
writel(val1 | mask, reg1);
} else if (mode == 3) {
writel(val0 | mask, reg0);
writel(val1 | mask, reg1);
} else {
writel(val0 & ~mask, reg0);
writel(val1 & ~mask, reg1);
}
}
static void do_board_detect(void)
{
int i;
u16 pval;
/* MIIM 1 + 2 MDC/MDIO */
for (i = 56; i < 60; i++)
vcoreiii_gpio_set_alternate(i, 1);
if (mscc_phy_rd(0, 0x10, 0x3, &pval) == 0 &&
((pval >> 4) & 0x3F) == 0x3c) {
gd->board_type = BOARD_TYPE_PCB112; /* Serval2-NID */
} else if (mscc_phy_rd(1, 0x0, 0x3, &pval) == 0 &&
((pval >> 4) & 0x3F) == 0x3c) {
gd->board_type = BOARD_TYPE_PCB110; /* Jr2-24 */
} else {
/* Fall-back */
gd->board_type = BOARD_TYPE_PCB111; /* Jr2-48 */
}
}
#if defined(CONFIG_MULTI_DTB_FIT)
int board_fit_config_name_match(const char *name)
{
if (gd->board_type == BOARD_TYPE_PCB110 &&
strcmp(name, "jr2_pcb110") == 0)
return 0;
if (gd->board_type == BOARD_TYPE_PCB111 &&
strcmp(name, "jr2_pcb111") == 0)
return 0;
if (gd->board_type == BOARD_TYPE_PCB112 &&
strcmp(name, "serval2_pcb112") == 0)
return 0;
return -1;
}
#endif
#if defined(CONFIG_DTB_RESELECT)
int embedded_dtb_select(void)
{
do_board_detect();
fdtdec_setup();
return 0;
}
#endif