260 lines
6.3 KiB
C
260 lines
6.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2010
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* ISEE 2007 SL, <www.iseebcn.com>
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*/
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#include <common.h>
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#include <env.h>
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#include <status_led.h>
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#include <dm.h>
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#include <ns16550.h>
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#include <twl4030.h>
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#include <netdev.h>
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#include <spl.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/sys_proto.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/rawnand.h>
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#include <linux/mtd/onenand.h>
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#include <jffs2/load_kernel.h>
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#include <mtd_node.h>
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#include <fdt_support.h>
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#include "igep00x0.h"
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static const struct ns16550_platdata igep_serial = {
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.base = OMAP34XX_UART3,
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.reg_shift = 2,
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.clock = V_NS16550_CLK,
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.fcr = UART_FCR_DEFVAL,
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};
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U_BOOT_DEVICE(igep_uart) = {
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"ns16550_serial",
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&igep_serial
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};
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/*
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* Routine: get_board_revision
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* Description: GPIO_28 and GPIO_129 are used to read board and revision from
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* IGEP00x0 boards. First of all, it is necessary to reset USB transceiver from
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* IGEP0030 in order to read GPIO_IGEP00X0_BOARD_DETECTION correctly, because
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* this functionality is shared by USB HOST.
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* Once USB reset is applied, U-boot configures these pins as input pullup to
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* detect board and revision:
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* IGEP0020-RF = 0b00
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* IGEP0020-RC = 0b01
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* IGEP0030-RG = 0b10
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* IGEP0030-RE = 0b11
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*/
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static int get_board_revision(void)
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{
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int revision;
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gpio_request(IGEP0030_USB_TRANSCEIVER_RESET,
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"igep0030_usb_transceiver_reset");
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gpio_direction_output(IGEP0030_USB_TRANSCEIVER_RESET, 0);
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gpio_request(GPIO_IGEP00X0_BOARD_DETECTION, "igep00x0_board_detection");
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gpio_direction_input(GPIO_IGEP00X0_BOARD_DETECTION);
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revision = 2 * gpio_get_value(GPIO_IGEP00X0_BOARD_DETECTION);
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gpio_free(GPIO_IGEP00X0_BOARD_DETECTION);
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gpio_request(GPIO_IGEP00X0_REVISION_DETECTION,
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"igep00x0_revision_detection");
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gpio_direction_input(GPIO_IGEP00X0_REVISION_DETECTION);
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revision = revision + gpio_get_value(GPIO_IGEP00X0_REVISION_DETECTION);
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gpio_free(GPIO_IGEP00X0_REVISION_DETECTION);
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gpio_free(IGEP0030_USB_TRANSCEIVER_RESET);
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return revision;
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}
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int onenand_board_init(struct mtd_info *mtd)
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{
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if (gpmc_cs0_flash == MTD_DEV_TYPE_ONENAND) {
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struct onenand_chip *this = mtd->priv;
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this->base = (void *)CONFIG_SYS_ONENAND_BASE;
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return 0;
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}
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return 1;
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}
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#if defined(CONFIG_CMD_NET)
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static void reset_net_chip(int gpio)
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{
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if (!gpio_request(gpio, "eth nrst")) {
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gpio_direction_output(gpio, 1);
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udelay(1);
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gpio_set_value(gpio, 0);
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udelay(40);
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gpio_set_value(gpio, 1);
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mdelay(10);
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}
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}
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/*
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* Routine: setup_net_chip
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* Description: Setting up the configuration GPMC registers specific to the
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* Ethernet hardware.
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*/
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static void setup_net_chip(void)
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{
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struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
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static const u32 gpmc_lan_config[] = {
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NET_LAN9221_GPMC_CONFIG1,
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NET_LAN9221_GPMC_CONFIG2,
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NET_LAN9221_GPMC_CONFIG3,
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NET_LAN9221_GPMC_CONFIG4,
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NET_LAN9221_GPMC_CONFIG5,
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NET_LAN9221_GPMC_CONFIG6,
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};
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enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
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CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
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/* Enable off mode for NWE in PADCONF_GPMC_NWE register */
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writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
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/* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
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writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
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/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
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writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
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&ctrl_base->gpmc_nadv_ale);
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reset_net_chip(64);
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}
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int board_eth_init(bd_t *bis)
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{
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#ifdef CONFIG_SMC911X
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return smc911x_initialize(0, CONFIG_SMC911X_BASE);
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#else
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return 0;
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#endif
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}
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#else
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static inline void setup_net_chip(void) {}
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#endif
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#ifdef CONFIG_OF_BOARD_SETUP
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static int ft_enable_by_compatible(void *blob, char *compat, int enable)
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{
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int off = fdt_node_offset_by_compatible(blob, -1, compat);
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if (off < 0)
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return off;
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if (enable)
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fdt_status_okay(blob, off);
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else
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fdt_status_disabled(blob, off);
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return 0;
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}
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int ft_board_setup(void *blob, bd_t *bd)
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{
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#ifdef CONFIG_FDT_FIXUP_PARTITIONS
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static const struct node_info nodes[] = {
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{ "ti,omap2-nand", MTD_DEV_TYPE_NAND, },
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{ "ti,omap2-onenand", MTD_DEV_TYPE_ONENAND, },
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};
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fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
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#endif
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ft_enable_by_compatible(blob, "ti,omap2-nand",
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gpmc_cs0_flash == MTD_DEV_TYPE_NAND);
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ft_enable_by_compatible(blob, "ti,omap2-onenand",
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gpmc_cs0_flash == MTD_DEV_TYPE_ONENAND);
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return 0;
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}
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#endif
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void set_led(void)
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{
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switch (get_board_revision()) {
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case 0:
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case 1:
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gpio_request(IGEP0020_GPIO_LED, "igep0020_gpio_led");
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gpio_direction_output(IGEP0020_GPIO_LED, 1);
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break;
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case 2:
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case 3:
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gpio_request(IGEP0030_GPIO_LED, "igep0030_gpio_led");
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gpio_direction_output(IGEP0030_GPIO_LED, 0);
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break;
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default:
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/* Should not happen... */
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break;
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}
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}
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void set_boardname(void)
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{
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char rev[5] = { 'F','C','G','E', };
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int i = get_board_revision();
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rev[i+1] = 0;
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env_set("board_rev", rev + i);
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env_set("board_name", i < 2 ? "igep0020" : "igep0030");
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}
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/*
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* Routine: misc_init_r
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* Description: Configure board specific parts
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*/
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int misc_init_r(void)
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{
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t2_t *t2_base = (t2_t *)T2_BASE;
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u32 pbias_lite;
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twl4030_power_init();
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/* set VSIM to 1.8V */
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twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VSIM_DEDICATED,
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TWL4030_PM_RECEIVER_VSIM_VSEL_18,
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TWL4030_PM_RECEIVER_VSIM_DEV_GRP,
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TWL4030_PM_RECEIVER_DEV_GRP_P1);
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/* set up dual-voltage GPIOs to 1.8V */
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pbias_lite = readl(&t2_base->pbias_lite);
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pbias_lite &= ~PBIASLITEVMODE1;
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pbias_lite |= PBIASLITEPWRDNZ1;
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writel(pbias_lite, &t2_base->pbias_lite);
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if (get_cpu_family() == CPU_OMAP36XX)
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writel(readl(OMAP34XX_CTRL_WKUP_CTRL) |
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OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ,
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OMAP34XX_CTRL_WKUP_CTRL);
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setup_net_chip();
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omap_die_id_display();
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set_led();
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set_boardname();
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return 0;
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}
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void board_mtdparts_default(const char **mtdids, const char **mtdparts)
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{
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struct mtd_info *mtd = get_mtd_device(NULL, 0);
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if (mtd) {
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static char ids[24];
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static char parts[48];
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const char *linux_name = "omap2-nand";
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if (strncmp(mtd->name, "onenand0", 8) == 0)
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linux_name = "omap2-onenand";
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snprintf(ids, sizeof(ids), "%s=%s", mtd->name, linux_name);
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snprintf(parts, sizeof(parts), "mtdparts=%s:%dk(SPL),-(UBI)",
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linux_name, 4 * mtd->erasesize >> 10);
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*mtdids = ids;
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*mtdparts = parts;
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}
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}
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