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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_DEVICE(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 *)CONFIG_SYS_ONENAND_BASE;
- return 0;
- }
- return 1;
- }
- #if defined(CONFIG_CMD_NET)
- static void reset_net_chip(int gpio)
- {
- if (!gpio_request(gpio, "eth nrst")) {
- gpio_direction_output(gpio, 1);
- udelay(1);
- gpio_set_value(gpio, 0);
- udelay(40);
- gpio_set_value(gpio, 1);
- mdelay(10);
- }
- }
- /*
- * Routine: setup_net_chip
- * Description: Setting up the configuration GPMC registers specific to the
- * Ethernet hardware.
- */
- static void setup_net_chip(void)
- {
- struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
- static const u32 gpmc_lan_config[] = {
- NET_LAN9221_GPMC_CONFIG1,
- NET_LAN9221_GPMC_CONFIG2,
- NET_LAN9221_GPMC_CONFIG3,
- NET_LAN9221_GPMC_CONFIG4,
- NET_LAN9221_GPMC_CONFIG5,
- NET_LAN9221_GPMC_CONFIG6,
- };
- enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
- CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
- /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
- writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
- /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
- writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
- /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
- writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
- &ctrl_base->gpmc_nadv_ale);
- reset_net_chip(64);
- }
- int board_eth_init(struct bd_info *bis)
- {
- #ifdef CONFIG_SMC911X
- return smc911x_initialize(0, CONFIG_SMC911X_BASE);
- #else
- return 0;
- #endif
- }
- #else
- static inline void setup_net_chip(void) {}
- #endif
- #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);
- setup_net_chip();
- 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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