diff options
Diffstat (limited to 'arch/arm/mach-mx3/qong.c')
-rw-r--r-- | arch/arm/mach-mx3/qong.c | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/arch/arm/mach-mx3/qong.c b/arch/arm/mach-mx3/qong.c deleted file mode 100644 index 044511f..0000000 --- a/arch/arm/mach-mx3/qong.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Copyright (C) 2009 Ilya Yanok, Emcraft Systems Ltd, <yanok@emcraft.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/memory.h> -#include <linux/platform_device.h> -#include <linux/mtd/physmap.h> -#include <linux/mtd/nand.h> -#include <linux/gpio.h> - -#include <mach/hardware.h> -#include <mach/irqs.h> -#include <asm/mach-types.h> -#include <asm/mach/arch.h> -#include <asm/mach/time.h> -#include <asm/mach/map.h> -#include <mach/common.h> -#include <asm/page.h> -#include <asm/setup.h> -#include <mach/board-qong.h> -#include <mach/imx-uart.h> -#include <mach/iomux-mx3.h> -#include "devices.h" - -/* FPGA defines */ -#define QONG_FPGA_VERSION(major, minor, rev) \ - (((major & 0xF) << 12) | ((minor & 0xF) << 8) | (rev & 0xFF)) - -#define QONG_FPGA_BASEADDR CS1_BASE_ADDR -#define QONG_FPGA_PERIPH_SIZE (1 << 24) - -#define QONG_FPGA_CTRL_BASEADDR QONG_FPGA_BASEADDR -#define QONG_FPGA_CTRL_SIZE 0x10 -/* FPGA control registers */ -#define QONG_FPGA_CTRL_VERSION 0x00 - -#define QONG_DNET_ID 1 -#define QONG_DNET_BASEADDR \ - (QONG_FPGA_BASEADDR + QONG_DNET_ID * QONG_FPGA_PERIPH_SIZE) -#define QONG_DNET_SIZE 0x00001000 - -#define QONG_FPGA_IRQ IOMUX_TO_IRQ(MX31_PIN_DTR_DCE1) - -/* - * This file contains the board-specific initialization routines. - */ - -static struct imxuart_platform_data uart_pdata = { - .flags = IMXUART_HAVE_RTSCTS, -}; - -static int uart_pins[] = { - MX31_PIN_CTS1__CTS1, - MX31_PIN_RTS1__RTS1, - MX31_PIN_TXD1__TXD1, - MX31_PIN_RXD1__RXD1 -}; - -static inline void mxc_init_imx_uart(void) -{ - mxc_iomux_setup_multiple_pins(uart_pins, ARRAY_SIZE(uart_pins), - "uart-0"); - mxc_register_device(&mxc_uart_device0, &uart_pdata); -} - -static struct resource dnet_resources[] = { - { - .name = "dnet-memory", - .start = QONG_DNET_BASEADDR, - .end = QONG_DNET_BASEADDR + QONG_DNET_SIZE - 1, - .flags = IORESOURCE_MEM, - }, { - .start = QONG_FPGA_IRQ, - .end = QONG_FPGA_IRQ, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device dnet_device = { - .name = "dnet", - .id = -1, - .num_resources = ARRAY_SIZE(dnet_resources), - .resource = dnet_resources, -}; - -static int __init qong_init_dnet(void) -{ - int ret; - - ret = platform_device_register(&dnet_device); - return ret; -} - -/* MTD NOR flash */ - -static struct physmap_flash_data qong_flash_data = { - .width = 2, -}; - -static struct resource qong_flash_resource = { - .start = CS0_BASE_ADDR, - .end = CS0_BASE_ADDR + QONG_NOR_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device qong_nor_mtd_device = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &qong_flash_data, - }, - .resource = &qong_flash_resource, - .num_resources = 1, -}; - -static void qong_init_nor_mtd(void) -{ - (void)platform_device_register(&qong_nor_mtd_device); -} - -/* - * Hardware specific access to control-lines - */ -static void qong_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) -{ - struct nand_chip *nand_chip = mtd->priv; - - if (cmd == NAND_CMD_NONE) - return; - - if (ctrl & NAND_CLE) - writeb(cmd, nand_chip->IO_ADDR_W + (1 << 24)); - else - writeb(cmd, nand_chip->IO_ADDR_W + (1 << 23)); -} - -/* - * Read the Device Ready pin. - */ -static int qong_nand_device_ready(struct mtd_info *mtd) -{ - return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_NFRB)); -} - -static void qong_nand_select_chip(struct mtd_info *mtd, int chip) -{ - if (chip >= 0) - gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_NFCE_B), 0); - else - gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_NFCE_B), 1); -} - -static struct platform_nand_data qong_nand_data = { - .chip = { - .chip_delay = 20, - .options = 0, - }, - .ctrl = { - .cmd_ctrl = qong_nand_cmd_ctrl, - .dev_ready = qong_nand_device_ready, - .select_chip = qong_nand_select_chip, - } -}; - -static struct resource qong_nand_resource = { - .start = CS3_BASE_ADDR, - .end = CS3_BASE_ADDR + SZ_32M - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device qong_nand_device = { - .name = "gen_nand", - .id = -1, - .dev = { - .platform_data = &qong_nand_data, - }, - .num_resources = 1, - .resource = &qong_nand_resource, -}; - -static void __init qong_init_nand_mtd(void) -{ - /* init CS */ - __raw_writel(0x00004f00, CSCR_U(3)); - __raw_writel(0x20013b31, CSCR_L(3)); - __raw_writel(0x00020800, CSCR_A(3)); - mxc_iomux_set_gpr(MUX_SDCTL_CSD1_SEL, true); - - /* enable pin */ - mxc_iomux_mode(IOMUX_MODE(MX31_PIN_NFCE_B, IOMUX_CONFIG_GPIO)); - if (!gpio_request(IOMUX_TO_GPIO(MX31_PIN_NFCE_B), "nand_enable")) - gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_NFCE_B), 0); - - /* ready/busy pin */ - mxc_iomux_mode(IOMUX_MODE(MX31_PIN_NFRB, IOMUX_CONFIG_GPIO)); - if (!gpio_request(IOMUX_TO_GPIO(MX31_PIN_NFRB), "nand_rdy")) - gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_NFRB)); - - /* write protect pin */ - mxc_iomux_mode(IOMUX_MODE(MX31_PIN_NFWP_B, IOMUX_CONFIG_GPIO)); - if (!gpio_request(IOMUX_TO_GPIO(MX31_PIN_NFWP_B), "nand_wp")) - gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_NFWP_B)); - - platform_device_register(&qong_nand_device); -} - -static void __init qong_init_fpga(void) -{ - void __iomem *regs; - u32 fpga_ver; - - regs = ioremap(QONG_FPGA_CTRL_BASEADDR, QONG_FPGA_CTRL_SIZE); - if (!regs) { - printk(KERN_ERR "%s: failed to map registers, aborting.\n", - __func__); - return; - } - - fpga_ver = readl(regs + QONG_FPGA_CTRL_VERSION); - iounmap(regs); - printk(KERN_INFO "Qong FPGA version %d.%d.%d\n", - (fpga_ver & 0xF000) >> 12, - (fpga_ver & 0x0F00) >> 8, fpga_ver & 0x00FF); - if (fpga_ver < QONG_FPGA_VERSION(0, 8, 7)) { - printk(KERN_ERR "qong: Unexpected FPGA version, FPGA-based " - "devices won't be registered!\n"); - return; - } - - /* register FPGA-based devices */ - qong_init_nand_mtd(); - qong_init_dnet(); -} - -/* - * Board specific initialization. - */ -static void __init mxc_board_init(void) -{ - mxc_init_imx_uart(); - qong_init_nor_mtd(); - qong_init_fpga(); -} - -static void __init qong_timer_init(void) -{ - mx31_clocks_init(26000000); -} - -static struct sys_timer qong_timer = { - .init = qong_timer_init, -}; - -/* - * The following uses standard kernel macros defined in arch.h in order to - * initialize __mach_desc_QONG data structure. - */ - -MACHINE_START(QONG, "Dave/DENX QongEVB-LITE") - /* Maintainer: DENX Software Engineering GmbH */ - .phys_io = AIPS1_BASE_ADDR, - .io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc, - .boot_params = PHYS_OFFSET + 0x100, - .map_io = mx31_map_io, - .init_irq = mx31_init_irq, - .init_machine = mxc_board_init, - .timer = &qong_timer, -MACHINE_END |