mirror of https://gitee.com/openkylin/linux.git
249 lines
5.6 KiB
C
249 lines
5.6 KiB
C
/*
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* arch/arm/mach-kirkwood/openrd-setup.c
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*
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* Marvell OpenRD (Base|Client|Ultimate) Board Setup
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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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/platform_device.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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#include <linux/ata_platform.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/kirkwood.h>
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#include <plat/mvsdio.h>
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#include "common.h"
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#include "mpp.h"
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static struct mtd_partition openrd_nand_parts[] = {
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{
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.name = "u-boot",
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.offset = 0,
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.size = SZ_1M,
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.mask_flags = MTD_WRITEABLE
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}, {
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.name = "uImage",
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.offset = MTDPART_OFS_NXTBLK,
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.size = SZ_4M
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}, {
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.name = "root",
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.offset = MTDPART_OFS_NXTBLK,
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.size = MTDPART_SIZ_FULL
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},
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};
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static struct mv643xx_eth_platform_data openrd_ge00_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR(8),
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};
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static struct mv643xx_eth_platform_data openrd_ge01_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR(24),
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};
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static struct mv_sata_platform_data openrd_sata_data = {
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.n_ports = 2,
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};
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static struct mvsdio_platform_data openrd_mvsdio_data = {
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.gpio_card_detect = 29, /* MPP29 used as SD card detect */
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};
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static unsigned int openrd_mpp_config[] __initdata = {
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MPP12_SD_CLK,
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MPP13_SD_CMD,
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MPP14_SD_D0,
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MPP15_SD_D1,
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MPP16_SD_D2,
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MPP17_SD_D3,
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MPP28_GPIO,
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MPP29_GPIO,
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MPP34_GPIO,
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0
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};
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/* Configure MPP for UART1 */
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static unsigned int openrd_uart1_mpp_config[] __initdata = {
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MPP13_UART1_TXD,
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MPP14_UART1_RXD,
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0
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};
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static struct i2c_board_info i2c_board_info[] __initdata = {
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{
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I2C_BOARD_INFO("cs42l51", 0x4a),
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},
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};
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static int __initdata uart1;
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static int __init sd_uart_selection(char *str)
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{
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uart1 = -EINVAL;
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/* Default is SD. Change if required, for UART */
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if (!str)
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return 0;
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if (!strncmp(str, "232", 3)) {
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uart1 = 232;
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} else if (!strncmp(str, "485", 3)) {
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/* OpenRD-Base doesn't have RS485. Treat is as an
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* unknown argument & just have default setting -
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* which is SD */
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if (machine_is_openrd_base()) {
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uart1 = -ENODEV;
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return 1;
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}
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uart1 = 485;
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}
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return 1;
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}
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/* Parse boot_command_line string kw_openrd_init_uart1=232/485 */
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__setup("kw_openrd_init_uart1=", sd_uart_selection);
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static int __init uart1_mpp_config(void)
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{
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kirkwood_mpp_conf(openrd_uart1_mpp_config);
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if (gpio_request(34, "SD_UART1_SEL")) {
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printk(KERN_ERR "GPIO request failed for SD/UART1 selection"
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", gpio: 34\n");
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return -EIO;
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}
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if (gpio_request(28, "RS232_RS485_SEL")) {
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printk(KERN_ERR "GPIO request failed for RS232/RS485 selection"
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", gpio# 28\n");
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gpio_free(34);
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return -EIO;
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}
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/* Select UART1
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* Pin # 34: 0 => UART1, 1 => SD */
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gpio_direction_output(34, 0);
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/* Select RS232 OR RS485
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* Pin # 28: 0 => RS232, 1 => RS485 */
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if (uart1 == 232)
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gpio_direction_output(28, 0);
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else
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gpio_direction_output(28, 1);
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gpio_free(34);
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gpio_free(28);
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return 0;
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}
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static void __init openrd_init(void)
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{
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/*
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* Basic setup. Needs to be called early.
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*/
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kirkwood_init();
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kirkwood_mpp_conf(openrd_mpp_config);
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kirkwood_uart0_init();
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kirkwood_nand_init(ARRAY_AND_SIZE(openrd_nand_parts), 25);
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kirkwood_ehci_init();
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if (machine_is_openrd_ultimate()) {
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openrd_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);
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openrd_ge01_data.phy_addr = MV643XX_ETH_PHY_ADDR(1);
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}
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kirkwood_ge00_init(&openrd_ge00_data);
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if (!machine_is_openrd_base())
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kirkwood_ge01_init(&openrd_ge01_data);
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kirkwood_sata_init(&openrd_sata_data);
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kirkwood_i2c_init();
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if (machine_is_openrd_client() || machine_is_openrd_ultimate()) {
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i2c_register_board_info(0, i2c_board_info,
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ARRAY_SIZE(i2c_board_info));
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kirkwood_audio_init();
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}
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if (uart1 <= 0) {
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if (uart1 < 0)
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printk(KERN_ERR "Invalid kernel parameter to select "
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"UART1. Defaulting to SD. ERROR CODE: %d\n",
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uart1);
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/* Select SD
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* Pin # 34: 0 => UART1, 1 => SD */
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if (gpio_request(34, "SD_UART1_SEL")) {
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printk(KERN_ERR "GPIO request failed for SD/UART1 "
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"selection, gpio: 34\n");
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} else {
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gpio_direction_output(34, 1);
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gpio_free(34);
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kirkwood_sdio_init(&openrd_mvsdio_data);
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}
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} else {
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if (!uart1_mpp_config())
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kirkwood_uart1_init();
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}
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}
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static int __init openrd_pci_init(void)
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{
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if (machine_is_openrd_base() ||
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machine_is_openrd_client() ||
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machine_is_openrd_ultimate())
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kirkwood_pcie_init(KW_PCIE0);
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return 0;
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}
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subsys_initcall(openrd_pci_init);
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#ifdef CONFIG_MACH_OPENRD_BASE
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MACHINE_START(OPENRD_BASE, "Marvell OpenRD Base Board")
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/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
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.boot_params = 0x00000100,
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.init_machine = openrd_init,
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.map_io = kirkwood_map_io,
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.init_early = kirkwood_init_early,
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.init_irq = kirkwood_init_irq,
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.timer = &kirkwood_timer,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_OPENRD_CLIENT
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MACHINE_START(OPENRD_CLIENT, "Marvell OpenRD Client Board")
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/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
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.boot_params = 0x00000100,
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.init_machine = openrd_init,
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.map_io = kirkwood_map_io,
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.init_early = kirkwood_init_early,
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.init_irq = kirkwood_init_irq,
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.timer = &kirkwood_timer,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_OPENRD_ULTIMATE
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MACHINE_START(OPENRD_ULTIMATE, "Marvell OpenRD Ultimate Board")
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/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
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.boot_params = 0x00000100,
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.init_machine = openrd_init,
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.map_io = kirkwood_map_io,
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.init_early = kirkwood_init_early,
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.init_irq = kirkwood_init_irq,
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.timer = &kirkwood_timer,
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MACHINE_END
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#endif
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