apx4devkit.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* Bluegiga APX4 Development Kit
*
* Copyright (C) 2012 Bluegiga Technologies Oy
*
* Authors:
* Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
* Lauri Hintsala <lauri.hintsala@bluegiga.com>
*
* Based on m28evk.c:
* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
*/
#include <common.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux-mx28.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <env.h>
#include <linux/mii.h>
#include <miiphy.h>
#include <netdev.h>
#include <errno.h>
DECLARE_GLOBAL_DATA_PTR;
/* Functions */
int board_early_init_f(void)
{
/* IO0 clock at 480MHz */
mxs_set_ioclk(MXC_IOCLK0, 480000);
/* IO1 clock at 480MHz */
mxs_set_ioclk(MXC_IOCLK1, 480000);
/* SSP0 clock at 96MHz */
mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
return 0;
}
int dram_init(void)
{
return mxs_dram_init();
}
int board_init(void)
{
/* Adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
#ifdef CONFIG_CMD_MMC
int board_mmc_init(bd_t *bis)
{
return mxsmmc_initialize(bis, 0, NULL, NULL);
}
#endif
#ifdef CONFIG_CMD_NET
#define MII_PHY_CTRL2 0x1f
int fecmxc_mii_postcall(int phy)
{
/* change PHY RMII clock to 50MHz */
miiphy_write("FEC", 0, MII_PHY_CTRL2, 0x8180);
return 0;
}
int board_eth_init(bd_t *bis)
{
int ret;
struct eth_device *dev;
ret = cpu_eth_init(bis);
if (ret) {
printf("FEC MXS: Unable to init FEC clocks\n");
return ret;
}
ret = fecmxc_initialize(bis);
if (ret) {
printf("FEC MXS: Unable to init FEC\n");
return ret;
}
dev = eth_get_dev_by_name("FEC");
if (!dev) {
printf("FEC MXS: Unable to get FEC device entry\n");
return -EINVAL;
}
ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
if (ret) {
printf("FEC MXS: Unable to register FEC MII postcall\n");
return ret;
}
return ret;
}
#endif
#ifdef CONFIG_SERIAL_TAG
#define MXS_OCOTP_MAX_TIMEOUT 1000000
void get_board_serial(struct tag_serialnr *serialnr)
{
struct mxs_ocotp_regs *ocotp_regs =
(struct mxs_ocotp_regs *)MXS_OCOTP_BASE;
serialnr->high = 0;
serialnr->low = 0;
writel(OCOTP_CTRL_RD_BANK_OPEN, &ocotp_regs->hw_ocotp_ctrl_set);
if (mxs_wait_mask_clr(&ocotp_regs->hw_ocotp_ctrl_reg, OCOTP_CTRL_BUSY,
MXS_OCOTP_MAX_TIMEOUT)) {
printf("MXS: Can't get serial number from OCOTP\n");
return;
}
serialnr->low = readl(&ocotp_regs->hw_ocotp_cust3);
}
#endif
#ifdef CONFIG_REVISION_TAG
u32 get_board_rev(void)
{
if (env_get("revision#") != NULL)
return simple_strtoul(env_get("revision#"), NULL, 10);
return 0;
}
#endif