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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010
* ISEE 2007 SL, <www.iseebcn.com>
*/
#include <common.h>
#include <env.h>
#include <init.h>
#include <malloc.h>
#include <net.h>
#include <status_led.h>
#include <dm.h>
#include <ns16550.h>
#include <twl4030.h>
#include <netdev.h>
#include <spl.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/onenand.h>
#include <jffs2/load_kernel.h>
#include <mtd_node.h>
#include <fdt_support.h>
#include "igep00x0.h"
static const struct ns16550_plat igep_serial = {
.base = OMAP34XX_UART3,
.reg_shift = 2,
.clock = V_NS16550_CLK,
.fcr = UART_FCR_DEFVAL,
};
U_BOOT_DRVINFO(igep_uart) = {
"ns16550_serial",
&igep_serial
};
/*
* Routine: get_board_revision
* Description: GPIO_28 and GPIO_129 are used to read board and revision from
* IGEP00x0 boards. First of all, it is necessary to reset USB transceiver from
* IGEP0030 in order to read GPIO_IGEP00X0_BOARD_DETECTION correctly, because
* this functionality is shared by USB HOST.
* Once USB reset is applied, U-Boot configures these pins as input pullup to
* detect board and revision:
* IGEP0020-RF = 0b00
* IGEP0020-RC = 0b01
* IGEP0030-RG = 0b10
* IGEP0030-RE = 0b11
*/
static int get_board_revision(void)
{
int revision;
gpio_request(IGEP0030_USB_TRANSCEIVER_RESET,
"igep0030_usb_transceiver_reset");
gpio_direction_output(IGEP0030_USB_TRANSCEIVER_RESET, 0);
gpio_request(GPIO_IGEP00X0_BOARD_DETECTION, "igep00x0_board_detection");
gpio_direction_input(GPIO_IGEP00X0_BOARD_DETECTION);
revision = 2 * gpio_get_value(GPIO_IGEP00X0_BOARD_DETECTION);
gpio_free(GPIO_IGEP00X0_BOARD_DETECTION);
gpio_request(GPIO_IGEP00X0_REVISION_DETECTION,
"igep00x0_revision_detection");
gpio_direction_input(GPIO_IGEP00X0_REVISION_DETECTION);
revision = revision + gpio_get_value(GPIO_IGEP00X0_REVISION_DETECTION);
gpio_free(GPIO_IGEP00X0_REVISION_DETECTION);
gpio_free(IGEP0030_USB_TRANSCEIVER_RESET);
return revision;
}
int onenand_board_init(struct mtd_info *mtd)
{
if (gpmc_cs0_flash == MTD_DEV_TYPE_ONENAND) {
struct onenand_chip *this = mtd->priv;
this->base = (void *)CFG_SYS_ONENAND_BASE;
return 0;
}
return 1;
}
#ifdef CONFIG_OF_BOARD_SETUP
static int ft_enable_by_compatible(void *blob, char *compat, int enable)
{
int off = fdt_node_offset_by_compatible(blob, -1, compat);
if (off < 0)
return off;
if (enable)
fdt_status_okay(blob, off);
else
fdt_status_disabled(blob, off);
return 0;
}
int ft_board_setup(void *blob, struct bd_info *bd)
{
#ifdef CONFIG_FDT_FIXUP_PARTITIONS
static const struct node_info nodes[] = {
{ "ti,omap2-nand", MTD_DEV_TYPE_NAND, },
{ "ti,omap2-onenand", MTD_DEV_TYPE_ONENAND, },
};
fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
#endif
ft_enable_by_compatible(blob, "ti,omap2-nand",
gpmc_cs0_flash == MTD_DEV_TYPE_NAND);
ft_enable_by_compatible(blob, "ti,omap2-onenand",
gpmc_cs0_flash == MTD_DEV_TYPE_ONENAND);
return 0;
}
#endif
void set_led(void)
{
switch (get_board_revision()) {
case 0:
case 1:
gpio_request(IGEP0020_GPIO_LED, "igep0020_gpio_led");
gpio_direction_output(IGEP0020_GPIO_LED, 1);
break;
case 2:
case 3:
gpio_request(IGEP0030_GPIO_LED, "igep0030_gpio_led");
gpio_direction_output(IGEP0030_GPIO_LED, 0);
break;
default:
/* Should not happen... */
break;
}
}
void set_boardname(void)
{
char rev[5] = { 'F','C','G','E', };
int i = get_board_revision();
rev[i+1] = 0;
env_set("board_rev", rev + i);
env_set("board_name", i < 2 ? "igep0020" : "igep0030");
}
/*
* Routine: misc_init_r
* Description: Configure board specific parts
*/
int misc_init_r(void)
{
t2_t *t2_base = (t2_t *)T2_BASE;
u32 pbias_lite;
twl4030_power_init();
/* set VSIM to 1.8V */
twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VSIM_DEDICATED,
TWL4030_PM_RECEIVER_VSIM_VSEL_18,
TWL4030_PM_RECEIVER_VSIM_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
/* set up dual-voltage GPIOs to 1.8V */
pbias_lite = readl(&t2_base->pbias_lite);
pbias_lite &= ~PBIASLITEVMODE1;
pbias_lite |= PBIASLITEPWRDNZ1;
writel(pbias_lite, &t2_base->pbias_lite);
if (get_cpu_family() == CPU_OMAP36XX)
writel(readl(OMAP34XX_CTRL_WKUP_CTRL) |
OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ,
OMAP34XX_CTRL_WKUP_CTRL);
omap_die_id_display();
set_led();
set_boardname();
return 0;
}
void board_mtdparts_default(const char **mtdids, const char **mtdparts)
{
struct mtd_info *mtd = get_mtd_device(NULL, 0);
if (mtd) {
static char ids[24];
static char parts[48];
const char *linux_name = "omap2-nand";
if (strncmp(mtd->name, "onenand0", 8) == 0)
linux_name = "omap2-onenand";
snprintf(ids, sizeof(ids), "%s=%s", mtd->name, linux_name);
snprintf(parts, sizeof(parts), "mtdparts=%s:%dk(SPL),-(UBI)",
linux_name, 4 * mtd->erasesize >> 10);
*mtdids = ids;
*mtdparts = parts;
}
}
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