diff options
Diffstat (limited to 'arch/arm/mach-mx5/board-mx53_ard.c')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx53_ard.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/board-mx53_ard.c b/arch/arm/mach-mx5/board-mx53_ard.c new file mode 100644 index 00000000000..7e1859ba5f8 --- /dev/null +++ b/arch/arm/mach-mx5/board-mx53_ard.c @@ -0,0 +1,176 @@ +/* + * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/smsc911x.h> + +#include <mach/common.h> +#include <mach/hardware.h> +#include <mach/iomux-mx53.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> + +#include "crm_regs.h" +#include "devices-imx53.h" + +#define ARD_ETHERNET_INT_B IMX_GPIO_NR(2, 31) + +static iomux_v3_cfg_t mx53_ard_pads[] = { + /* UART1 */ + MX53_PAD_PATA_DIOW__UART1_TXD_MUX, + MX53_PAD_PATA_DMACK__UART1_RXD_MUX, + /* WEIM for CS1 */ + MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */ + MX53_PAD_EIM_D16__EMI_WEIM_D_16, + MX53_PAD_EIM_D17__EMI_WEIM_D_17, + MX53_PAD_EIM_D18__EMI_WEIM_D_18, + MX53_PAD_EIM_D19__EMI_WEIM_D_19, + MX53_PAD_EIM_D20__EMI_WEIM_D_20, + MX53_PAD_EIM_D21__EMI_WEIM_D_21, + MX53_PAD_EIM_D22__EMI_WEIM_D_22, + MX53_PAD_EIM_D23__EMI_WEIM_D_23, + MX53_PAD_EIM_D24__EMI_WEIM_D_24, + MX53_PAD_EIM_D25__EMI_WEIM_D_25, + MX53_PAD_EIM_D26__EMI_WEIM_D_26, + MX53_PAD_EIM_D27__EMI_WEIM_D_27, + MX53_PAD_EIM_D28__EMI_WEIM_D_28, + MX53_PAD_EIM_D29__EMI_WEIM_D_29, + MX53_PAD_EIM_D30__EMI_WEIM_D_30, + MX53_PAD_EIM_D31__EMI_WEIM_D_31, + MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0, + MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1, + MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2, + MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3, + MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4, + MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5, + MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6, + MX53_PAD_EIM_OE__EMI_WEIM_OE, + MX53_PAD_EIM_RW__EMI_WEIM_RW, + MX53_PAD_EIM_CS1__EMI_WEIM_CS_1, +}; + +static struct resource ard_smsc911x_resources[] = { + { + .start = MX53_CS1_64MB_BASE_ADDR, + .end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = gpio_to_irq(ARD_ETHERNET_INT_B), + .end = gpio_to_irq(ARD_ETHERNET_INT_B), + .flags = IORESOURCE_IRQ, + }, +}; + +struct smsc911x_platform_config ard_smsc911x_config = { + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, + .flags = SMSC911X_USE_32BIT, +}; + +static struct platform_device ard_smsc_lan9220_device = { + .name = "smsc911x", + .id = -1, + .num_resources = ARRAY_SIZE(ard_smsc911x_resources), + .resource = ard_smsc911x_resources, + .dev = { + .platform_data = &ard_smsc911x_config, + }, +}; + +static void __init mx53_ard_io_init(void) +{ + mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads, + ARRAY_SIZE(mx53_ard_pads)); + + gpio_request(ARD_ETHERNET_INT_B, "eth-int-b"); + gpio_direction_input(ARD_ETHERNET_INT_B); +} + + /* Config CS1 settings for ethernet controller */ +static int weim_cs_config(void) +{ + u32 reg; + void __iomem *weim_base, *iomuxc_base; + + weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K); + if (!weim_base) + return -ENOMEM; + + iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K); + if (!iomuxc_base) + return -ENOMEM; + + /* CS1 timings for LAN9220 */ + writel(0x20001, (weim_base + 0x18)); + writel(0x0, (weim_base + 0x1C)); + writel(0x16000202, (weim_base + 0x20)); + writel(0x00000002, (weim_base + 0x24)); + writel(0x16002082, (weim_base + 0x28)); + writel(0x00000000, (weim_base + 0x2C)); + writel(0x00000000, (weim_base + 0x90)); + + /* specify 64 MB on CS1 and CS0 on GPR1 */ + reg = readl(iomuxc_base + 0x4); + reg &= ~0x3F; + reg |= 0x1B; + writel(reg, (iomuxc_base + 0x4)); + + iounmap(iomuxc_base); + iounmap(weim_base); + + return 0; +} + +static struct platform_device *devices[] __initdata = { + &ard_smsc_lan9220_device, +}; + +static void __init mx53_ard_board_init(void) +{ + imx53_soc_init(); + imx53_add_imx_uart(0, NULL); + + mx53_ard_io_init(); + weim_cs_config(); + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +static void __init mx53_ard_timer_init(void) +{ + mx53_clocks_init(32768, 24000000, 22579200, 0); +} + +static struct sys_timer mx53_ard_timer = { + .init = mx53_ard_timer_init, +}; + +MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board") + .map_io = mx53_map_io, + .init_early = imx53_init_early, + .init_irq = mx53_init_irq, + .timer = &mx53_ard_timer, + .init_machine = mx53_ard_board_init, +MACHINE_END |