530 lines
13 KiB
C
530 lines
13 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-am3517evm.c
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*
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* Copyright (C) 2009 Texas Instruments Incorporated
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* Author: Ranjith Lohithakshan <ranjithl@ti.com>
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*
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* Based on mach-omap2/board-omap3evm.c
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
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* whether express or implied; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/i2c/pca953x.h>
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#include <linux/can/platform/ti_hecc.h>
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#include <linux/davinci_emac.h>
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#include <mach/hardware.h>
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#include <mach/am35xx.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <plat/board.h>
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#include <plat/common.h>
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#include <plat/usb.h>
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#include <plat/display.h>
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#include <plat/panel-generic-dpi.h>
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#include "mux.h"
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#include "control.h"
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#define AM35XX_EVM_MDIO_FREQUENCY (1000000)
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static struct mdio_platform_data am3517_evm_mdio_pdata = {
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.bus_freq = AM35XX_EVM_MDIO_FREQUENCY,
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};
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static struct resource am3517_mdio_resources[] = {
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{
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.start = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
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.end = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
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SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device am3517_mdio_device = {
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.name = "davinci_mdio",
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.id = 0,
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.num_resources = ARRAY_SIZE(am3517_mdio_resources),
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.resource = am3517_mdio_resources,
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.dev.platform_data = &am3517_evm_mdio_pdata,
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};
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static struct emac_platform_data am3517_evm_emac_pdata = {
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.rmii_en = 1,
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};
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static struct resource am3517_emac_resources[] = {
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{
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.start = AM35XX_IPSS_EMAC_BASE,
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.end = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
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.end = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
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.end = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
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.end = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
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.end = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device am3517_emac_device = {
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.name = "davinci_emac",
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.id = -1,
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.num_resources = ARRAY_SIZE(am3517_emac_resources),
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.resource = am3517_emac_resources,
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};
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static void am3517_enable_ethernet_int(void)
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{
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u32 regval;
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regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
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regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
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AM35XX_CPGMAC_C0_TX_PULSE_CLR |
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AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
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AM35XX_CPGMAC_C0_RX_THRESH_CLR);
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omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
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regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
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}
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static void am3517_disable_ethernet_int(void)
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{
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u32 regval;
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regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
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regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
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AM35XX_CPGMAC_C0_TX_PULSE_CLR);
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omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
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regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
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}
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static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
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{
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unsigned int regval;
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pdata->ctrl_reg_offset = AM35XX_EMAC_CNTRL_OFFSET;
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pdata->ctrl_mod_reg_offset = AM35XX_EMAC_CNTRL_MOD_OFFSET;
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pdata->ctrl_ram_offset = AM35XX_EMAC_CNTRL_RAM_OFFSET;
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pdata->ctrl_ram_size = AM35XX_EMAC_CNTRL_RAM_SIZE;
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pdata->version = EMAC_VERSION_2;
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pdata->hw_ram_addr = AM35XX_EMAC_HW_RAM_ADDR;
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pdata->interrupt_enable = am3517_enable_ethernet_int;
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pdata->interrupt_disable = am3517_disable_ethernet_int;
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am3517_emac_device.dev.platform_data = pdata;
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platform_device_register(&am3517_emac_device);
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platform_device_register(&am3517_mdio_device);
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clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
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NULL, &am3517_emac_device.dev);
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regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
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regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
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omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
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regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
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return ;
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}
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#define LCD_PANEL_PWR 176
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#define LCD_PANEL_BKLIGHT_PWR 182
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#define LCD_PANEL_PWM 181
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static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
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{
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I2C_BOARD_INFO("s35390a", 0x30),
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},
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};
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/*
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* RTC - S35390A
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*/
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#define GPIO_RTCS35390A_IRQ 55
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static void __init am3517_evm_rtc_init(void)
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{
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int r;
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omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
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r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
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if (r < 0) {
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printk(KERN_WARNING "failed to request GPIO#%d\n",
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GPIO_RTCS35390A_IRQ);
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return;
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}
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r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
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if (r < 0) {
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printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
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GPIO_RTCS35390A_IRQ);
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gpio_free(GPIO_RTCS35390A_IRQ);
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return;
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}
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am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
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}
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/*
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* I2C GPIO Expander - TCA6416
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*/
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/* Mounted on Base-Board */
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static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
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.gpio_base = OMAP_MAX_GPIO_LINES,
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};
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static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
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{
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I2C_BOARD_INFO("tca6416", 0x21),
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.platform_data = &am3517evm_gpio_expander_info_0,
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},
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};
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/* Mounted on UI Card */
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static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
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.gpio_base = OMAP_MAX_GPIO_LINES + 16,
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};
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static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
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.gpio_base = OMAP_MAX_GPIO_LINES + 32,
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};
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static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
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{
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I2C_BOARD_INFO("tca6416", 0x20),
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.platform_data = &am3517evm_ui_gpio_expander_info_1,
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},
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{
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I2C_BOARD_INFO("tca6416", 0x21),
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.platform_data = &am3517evm_ui_gpio_expander_info_2,
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},
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};
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static int __init am3517_evm_i2c_init(void)
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{
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omap_register_i2c_bus(1, 400, NULL, 0);
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omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
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ARRAY_SIZE(am3517evm_i2c2_boardinfo));
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omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
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ARRAY_SIZE(am3517evm_i2c3_boardinfo));
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return 0;
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}
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static int lcd_enabled;
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static int dvi_enabled;
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#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
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defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
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static void __init am3517_evm_display_init(void)
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{
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int r;
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omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
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omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
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omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
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/*
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* Enable GPIO 182 = LCD Backlight Power
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*/
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r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
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if (r) {
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printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
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return;
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}
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gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
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/*
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* Enable GPIO 181 = LCD Panel PWM
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*/
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r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
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if (r) {
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printk(KERN_ERR "failed to get lcd_pwm\n");
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goto err_1;
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}
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gpio_direction_output(LCD_PANEL_PWM, 1);
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/*
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* Enable GPIO 176 = LCD Panel Power enable pin
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*/
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r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
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if (r) {
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printk(KERN_ERR "failed to get lcd_panel_pwr\n");
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goto err_2;
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}
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gpio_direction_output(LCD_PANEL_PWR, 1);
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printk(KERN_INFO "Display initialized successfully\n");
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return;
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err_2:
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gpio_free(LCD_PANEL_PWM);
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err_1:
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gpio_free(LCD_PANEL_BKLIGHT_PWR);
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}
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#else
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static void __init am3517_evm_display_init(void) {}
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#endif
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static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
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{
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if (dvi_enabled) {
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printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
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return -EINVAL;
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}
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gpio_set_value(LCD_PANEL_PWR, 1);
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lcd_enabled = 1;
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return 0;
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}
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static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
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{
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gpio_set_value(LCD_PANEL_PWR, 0);
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lcd_enabled = 0;
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}
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static struct panel_generic_dpi_data lcd_panel = {
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.name = "sharp_lq",
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.platform_enable = am3517_evm_panel_enable_lcd,
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.platform_disable = am3517_evm_panel_disable_lcd,
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};
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static struct omap_dss_device am3517_evm_lcd_device = {
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.type = OMAP_DISPLAY_TYPE_DPI,
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.name = "lcd",
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.driver_name = "generic_dpi_panel",
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.data = &lcd_panel,
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.phy.dpi.data_lines = 16,
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};
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static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
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{
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return 0;
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}
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static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
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{
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}
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static struct omap_dss_device am3517_evm_tv_device = {
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.type = OMAP_DISPLAY_TYPE_VENC,
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.name = "tv",
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.driver_name = "venc",
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.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
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.platform_enable = am3517_evm_panel_enable_tv,
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.platform_disable = am3517_evm_panel_disable_tv,
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};
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static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
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{
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if (lcd_enabled) {
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printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
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return -EINVAL;
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}
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dvi_enabled = 1;
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return 0;
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}
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static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
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{
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dvi_enabled = 0;
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}
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static struct panel_generic_dpi_data dvi_panel = {
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.name = "generic",
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.platform_enable = am3517_evm_panel_enable_dvi,
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.platform_disable = am3517_evm_panel_disable_dvi,
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};
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static struct omap_dss_device am3517_evm_dvi_device = {
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.type = OMAP_DISPLAY_TYPE_DPI,
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.name = "dvi",
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.driver_name = "generic_dpi_panel",
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.data = &dvi_panel,
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.phy.dpi.data_lines = 24,
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};
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static struct omap_dss_device *am3517_evm_dss_devices[] = {
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&am3517_evm_lcd_device,
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&am3517_evm_tv_device,
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&am3517_evm_dvi_device,
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};
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static struct omap_dss_board_info am3517_evm_dss_data = {
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.num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
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.devices = am3517_evm_dss_devices,
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.default_device = &am3517_evm_lcd_device,
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};
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static struct platform_device am3517_evm_dss_device = {
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.name = "omapdss",
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.id = -1,
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.dev = {
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.platform_data = &am3517_evm_dss_data,
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},
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};
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/*
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* Board initialization
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*/
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static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
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};
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static struct platform_device *am3517_evm_devices[] __initdata = {
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&am3517_evm_dss_device,
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};
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static void __init am3517_evm_init_irq(void)
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{
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omap_board_config = am3517_evm_config;
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omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
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omap2_init_common_infrastructure();
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omap2_init_common_devices(NULL, NULL);
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omap_init_irq();
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}
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static struct omap_musb_board_data musb_board_data = {
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.interface_type = MUSB_INTERFACE_ULPI,
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.mode = MUSB_OTG,
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.power = 500,
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};
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static __init void am3517_evm_musb_init(void)
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{
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u32 devconf2;
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/*
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* Set up USB clock/mode in the DEVCONF2 register.
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*/
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devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
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/* USB2.0 PHY reference clock is 13 MHz */
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devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
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devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
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| CONF2_DATPOL;
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omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
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usb_musb_init(&musb_board_data);
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}
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static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
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.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
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#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
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defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
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.port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
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#else
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.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
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#endif
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.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
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.phy_reset = true,
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.reset_gpio_port[0] = 57,
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.reset_gpio_port[1] = -EINVAL,
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.reset_gpio_port[2] = -EINVAL
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};
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#ifdef CONFIG_OMAP_MUX
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static struct omap_board_mux board_mux[] __initdata = {
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/* USB OTG DRVVBUS offset = 0x212 */
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OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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#endif
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static struct resource am3517_hecc_resources[] = {
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{
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|
.start = AM35XX_IPSS_HECC_BASE,
|
|
.end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_35XX_HECC0_IRQ,
|
|
.end = INT_35XX_HECC0_IRQ,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device am3517_hecc_device = {
|
|
.name = "ti_hecc",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(am3517_hecc_resources),
|
|
.resource = am3517_hecc_resources,
|
|
};
|
|
|
|
static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
|
|
.scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
|
|
.scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
|
|
.hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
|
|
.mbx_offset = AM35XX_HECC_MBOX_OFFSET,
|
|
.int_line = AM35XX_HECC_INT_LINE,
|
|
.version = AM35XX_HECC_VERSION,
|
|
};
|
|
|
|
static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
|
|
{
|
|
am3517_hecc_device.dev.platform_data = pdata;
|
|
platform_device_register(&am3517_hecc_device);
|
|
}
|
|
|
|
static void __init am3517_evm_init(void)
|
|
{
|
|
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
|
|
|
|
am3517_evm_i2c_init();
|
|
platform_add_devices(am3517_evm_devices,
|
|
ARRAY_SIZE(am3517_evm_devices));
|
|
|
|
omap_serial_init();
|
|
|
|
/* Configure GPIO for EHCI port */
|
|
omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
|
|
usb_ehci_init(&usbhs_bdata);
|
|
am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
|
|
/* DSS */
|
|
am3517_evm_display_init();
|
|
|
|
/* RTC - S35390A */
|
|
am3517_evm_rtc_init();
|
|
|
|
i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
|
|
ARRAY_SIZE(am3517evm_i2c1_boardinfo));
|
|
/*Ethernet*/
|
|
am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
|
|
|
|
/* MUSB */
|
|
am3517_evm_musb_init();
|
|
}
|
|
|
|
MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
|
|
.boot_params = 0x80000100,
|
|
.map_io = omap3_map_io,
|
|
.reserve = omap_reserve,
|
|
.init_irq = am3517_evm_init_irq,
|
|
.init_machine = am3517_evm_init,
|
|
.timer = &omap_timer,
|
|
MACHINE_END
|