diff options
Diffstat (limited to 'kernel/arch/mips/emma/markeins')
| -rw-r--r-- | kernel/arch/mips/emma/markeins/Makefile | 10 | ||||
| -rw-r--r-- | kernel/arch/mips/emma/markeins/irq.c | 307 | ||||
| -rw-r--r-- | kernel/arch/mips/emma/markeins/led.c | 57 | ||||
| -rw-r--r-- | kernel/arch/mips/emma/markeins/platform.c | 212 | ||||
| -rw-r--r-- | kernel/arch/mips/emma/markeins/setup.c | 128 |
5 files changed, 714 insertions, 0 deletions
diff --git a/kernel/arch/mips/emma/markeins/Makefile b/kernel/arch/mips/emma/markeins/Makefile new file mode 100644 index 000000000..f8ba2508f --- /dev/null +++ b/kernel/arch/mips/emma/markeins/Makefile @@ -0,0 +1,10 @@ +# +# Copyright (C) NEC Electronics Corporation 2005-2006 +# +# 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. +# + +obj-$(CONFIG_NEC_MARKEINS) += irq.o setup.o led.o platform.o diff --git a/kernel/arch/mips/emma/markeins/irq.c b/kernel/arch/mips/emma/markeins/irq.c new file mode 100644 index 000000000..b880a83e4 --- /dev/null +++ b/kernel/arch/mips/emma/markeins/irq.c @@ -0,0 +1,307 @@ +/* + * Copyright (C) NEC Electronics Corporation 2004-2006 + * + * This file is based on the arch/mips/ddb5xxx/ddb5477/irq.c + * + * Copyright 2001 MontaVista Software Inc. + * + * 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/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/types.h> +#include <linux/ptrace.h> +#include <linux/delay.h> + +#include <asm/irq_cpu.h> +#include <asm/mipsregs.h> +#include <asm/addrspace.h> +#include <asm/bootinfo.h> + +#include <asm/emma/emma2rh.h> + +static void emma2rh_irq_enable(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_IRQ_BASE; + u32 reg_value, reg_bitmask, reg_index; + + reg_index = EMMA2RH_BHIF_INT_EN_0 + + (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) * (irq / 32); + reg_value = emma2rh_in32(reg_index); + reg_bitmask = 0x1 << (irq % 32); + emma2rh_out32(reg_index, reg_value | reg_bitmask); +} + +static void emma2rh_irq_disable(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_IRQ_BASE; + u32 reg_value, reg_bitmask, reg_index; + + reg_index = EMMA2RH_BHIF_INT_EN_0 + + (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) * (irq / 32); + reg_value = emma2rh_in32(reg_index); + reg_bitmask = 0x1 << (irq % 32); + emma2rh_out32(reg_index, reg_value & ~reg_bitmask); +} + +struct irq_chip emma2rh_irq_controller = { + .name = "emma2rh_irq", + .irq_mask = emma2rh_irq_disable, + .irq_unmask = emma2rh_irq_enable, +}; + +void emma2rh_irq_init(void) +{ + u32 i; + + for (i = 0; i < NUM_EMMA2RH_IRQ; i++) + irq_set_chip_and_handler_name(EMMA2RH_IRQ_BASE + i, + &emma2rh_irq_controller, + handle_level_irq, "level"); +} + +static void emma2rh_sw_irq_enable(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_SW_IRQ_BASE; + u32 reg; + + reg = emma2rh_in32(EMMA2RH_BHIF_SW_INT_EN); + reg |= 1 << irq; + emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, reg); +} + +static void emma2rh_sw_irq_disable(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_SW_IRQ_BASE; + u32 reg; + + reg = emma2rh_in32(EMMA2RH_BHIF_SW_INT_EN); + reg &= ~(1 << irq); + emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, reg); +} + +struct irq_chip emma2rh_sw_irq_controller = { + .name = "emma2rh_sw_irq", + .irq_mask = emma2rh_sw_irq_disable, + .irq_unmask = emma2rh_sw_irq_enable, +}; + +void emma2rh_sw_irq_init(void) +{ + u32 i; + + for (i = 0; i < NUM_EMMA2RH_IRQ_SW; i++) + irq_set_chip_and_handler_name(EMMA2RH_SW_IRQ_BASE + i, + &emma2rh_sw_irq_controller, + handle_level_irq, "level"); +} + +static void emma2rh_gpio_irq_enable(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; + u32 reg; + + reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK); + reg |= 1 << irq; + emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg); +} + +static void emma2rh_gpio_irq_disable(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; + u32 reg; + + reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK); + reg &= ~(1 << irq); + emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg); +} + +static void emma2rh_gpio_irq_ack(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; + + emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~(1 << irq)); +} + +static void emma2rh_gpio_irq_mask_ack(struct irq_data *d) +{ + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; + u32 reg; + + emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~(1 << irq)); + + reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK); + reg &= ~(1 << irq); + emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg); +} + +struct irq_chip emma2rh_gpio_irq_controller = { + .name = "emma2rh_gpio_irq", + .irq_ack = emma2rh_gpio_irq_ack, + .irq_mask = emma2rh_gpio_irq_disable, + .irq_mask_ack = emma2rh_gpio_irq_mask_ack, + .irq_unmask = emma2rh_gpio_irq_enable, +}; + +void emma2rh_gpio_irq_init(void) +{ + u32 i; + + for (i = 0; i < NUM_EMMA2RH_IRQ_GPIO; i++) + irq_set_chip_and_handler_name(EMMA2RH_GPIO_IRQ_BASE + i, + &emma2rh_gpio_irq_controller, + handle_edge_irq, "edge"); +} + +static struct irqaction irq_cascade = { + .handler = no_action, + .flags = IRQF_NO_THREAD, + .name = "cascade", + .dev_id = NULL, + .next = NULL, +}; + +/* + * the first level int-handler will jump here if it is a emma2rh irq + */ +void emma2rh_irq_dispatch(void) +{ + u32 intStatus; + u32 bitmask; + u32 i; + + intStatus = emma2rh_in32(EMMA2RH_BHIF_INT_ST_0) & + emma2rh_in32(EMMA2RH_BHIF_INT_EN_0); + +#ifdef EMMA2RH_SW_CASCADE + if (intStatus & (1UL << EMMA2RH_SW_CASCADE)) { + u32 swIntStatus; + swIntStatus = emma2rh_in32(EMMA2RH_BHIF_SW_INT) + & emma2rh_in32(EMMA2RH_BHIF_SW_INT_EN); + for (i = 0, bitmask = 1; i < 32; i++, bitmask <<= 1) { + if (swIntStatus & bitmask) { + do_IRQ(EMMA2RH_SW_IRQ_BASE + i); + return; + } + } + } + /* Skip S/W interrupt */ + intStatus &= ~(1UL << EMMA2RH_SW_CASCADE); +#endif + + for (i = 0, bitmask = 1; i < 32; i++, bitmask <<= 1) { + if (intStatus & bitmask) { + do_IRQ(EMMA2RH_IRQ_BASE + i); + return; + } + } + + intStatus = emma2rh_in32(EMMA2RH_BHIF_INT_ST_1) & + emma2rh_in32(EMMA2RH_BHIF_INT_EN_1); + +#ifdef EMMA2RH_GPIO_CASCADE + if (intStatus & (1UL << (EMMA2RH_GPIO_CASCADE % 32))) { + u32 gpioIntStatus; + gpioIntStatus = emma2rh_in32(EMMA2RH_GPIO_INT_ST) + & emma2rh_in32(EMMA2RH_GPIO_INT_MASK); + for (i = 0, bitmask = 1; i < 32; i++, bitmask <<= 1) { + if (gpioIntStatus & bitmask) { + do_IRQ(EMMA2RH_GPIO_IRQ_BASE + i); + return; + } + } + } + /* Skip GPIO interrupt */ + intStatus &= ~(1UL << (EMMA2RH_GPIO_CASCADE % 32)); +#endif + + for (i = 32, bitmask = 1; i < 64; i++, bitmask <<= 1) { + if (intStatus & bitmask) { + do_IRQ(EMMA2RH_IRQ_BASE + i); + return; + } + } + + intStatus = emma2rh_in32(EMMA2RH_BHIF_INT_ST_2) & + emma2rh_in32(EMMA2RH_BHIF_INT_EN_2); + + for (i = 64, bitmask = 1; i < 96; i++, bitmask <<= 1) { + if (intStatus & bitmask) { + do_IRQ(EMMA2RH_IRQ_BASE + i); + return; + } + } +} + +void __init arch_init_irq(void) +{ + u32 reg; + + /* by default, interrupts are disabled. */ + emma2rh_out32(EMMA2RH_BHIF_INT_EN_0, 0); + emma2rh_out32(EMMA2RH_BHIF_INT_EN_1, 0); + emma2rh_out32(EMMA2RH_BHIF_INT_EN_2, 0); + emma2rh_out32(EMMA2RH_BHIF_INT1_EN_0, 0); + emma2rh_out32(EMMA2RH_BHIF_INT1_EN_1, 0); + emma2rh_out32(EMMA2RH_BHIF_INT1_EN_2, 0); + emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, 0); + + clear_c0_status(0xff00); + set_c0_status(0x0400); + +#define GPIO_PCI (0xf<<15) + /* setup GPIO interrupt for PCI interface */ + /* direction input */ + reg = emma2rh_in32(EMMA2RH_GPIO_DIR); + emma2rh_out32(EMMA2RH_GPIO_DIR, reg & ~GPIO_PCI); + /* disable interrupt */ + reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK); + emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg & ~GPIO_PCI); + /* level triggerd */ + reg = emma2rh_in32(EMMA2RH_GPIO_INT_MODE); + emma2rh_out32(EMMA2RH_GPIO_INT_MODE, reg | GPIO_PCI); + reg = emma2rh_in32(EMMA2RH_GPIO_INT_CND_A); + emma2rh_out32(EMMA2RH_GPIO_INT_CND_A, reg & (~GPIO_PCI)); + /* interrupt clear */ + emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~GPIO_PCI); + + /* init all controllers */ + emma2rh_irq_init(); + emma2rh_sw_irq_init(); + emma2rh_gpio_irq_init(); + mips_cpu_irq_init(); + + /* setup cascade interrupts */ + setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, &irq_cascade); + setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE, &irq_cascade); + setup_irq(MIPS_CPU_IRQ_BASE + 2, &irq_cascade); +} + +asmlinkage void plat_irq_dispatch(void) +{ + unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM; + + if (pending & STATUSF_IP7) + do_IRQ(MIPS_CPU_IRQ_BASE + 7); + else if (pending & STATUSF_IP2) + emma2rh_irq_dispatch(); + else if (pending & STATUSF_IP1) + do_IRQ(MIPS_CPU_IRQ_BASE + 1); + else if (pending & STATUSF_IP0) + do_IRQ(MIPS_CPU_IRQ_BASE + 0); + else + spurious_interrupt(); +} diff --git a/kernel/arch/mips/emma/markeins/led.c b/kernel/arch/mips/emma/markeins/led.c new file mode 100644 index 000000000..497558968 --- /dev/null +++ b/kernel/arch/mips/emma/markeins/led.c @@ -0,0 +1,57 @@ +/* + * Copyright (C) NEC Electronics Corporation 2004-2006 + * + * 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/kernel.h> +#include <linux/types.h> +#include <linux/string.h> +#include <asm/emma/emma2rh.h> + +const unsigned long clear = 0x20202020; + +#define LED_BASE 0xb1400038 + +void markeins_led_clear(void) +{ + emma2rh_out32(LED_BASE, clear); + emma2rh_out32(LED_BASE + 4, clear); +} + +void markeins_led(const char *str) +{ + int i; + int len = strlen(str); + + markeins_led_clear(); + if (len > 8) + len = 8; + + if (emma2rh_in32(0xb0000800) & (0x1 << 18)) + for (i = 0; i < len; i++) + emma2rh_out8(LED_BASE + i, str[i]); + else + for (i = 0; i < len; i++) + emma2rh_out8(LED_BASE + (i & 4) + (3 - (i & 3)), + str[i]); +} + +void markeins_led_hex(u32 val) +{ + char str[10]; + + sprintf(str, "%08x", val); + markeins_led(str); +} diff --git a/kernel/arch/mips/emma/markeins/platform.c b/kernel/arch/mips/emma/markeins/platform.c new file mode 100644 index 000000000..99ea00473 --- /dev/null +++ b/kernel/arch/mips/emma/markeins/platform.c @@ -0,0 +1,212 @@ +/* + * Copyright(C) MontaVista Software Inc, 2006 + * + * Author: dmitry pervushin <dpervushin@ru.mvista.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/init.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/ioport.h> +#include <linux/serial_8250.h> +#include <linux/mtd/physmap.h> + +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/addrspace.h> +#include <asm/time.h> +#include <asm/bcache.h> +#include <asm/irq.h> +#include <asm/reboot.h> +#include <asm/traps.h> + +#include <asm/emma/emma2rh.h> + + +#define I2C_EMMA2RH "emma2rh-iic" /* must be in sync with IIC driver */ + +static struct resource i2c_emma_resources_0[] = { + { + .name = NULL, + .start = EMMA2RH_IRQ_PIIC0, + .end = EMMA2RH_IRQ_PIIC0, + .flags = IORESOURCE_IRQ + }, { + .name = NULL, + .start = EMMA2RH_PIIC0_BASE, + .end = EMMA2RH_PIIC0_BASE + 0x1000, + .flags = 0 + }, +}; + +struct resource i2c_emma_resources_1[] = { + { + .name = NULL, + .start = EMMA2RH_IRQ_PIIC1, + .end = EMMA2RH_IRQ_PIIC1, + .flags = IORESOURCE_IRQ + }, { + .name = NULL, + .start = EMMA2RH_PIIC1_BASE, + .end = EMMA2RH_PIIC1_BASE + 0x1000, + .flags = 0 + }, +}; + +struct resource i2c_emma_resources_2[] = { + { + .name = NULL, + .start = EMMA2RH_IRQ_PIIC2, + .end = EMMA2RH_IRQ_PIIC2, + .flags = IORESOURCE_IRQ + }, { + .name = NULL, + .start = EMMA2RH_PIIC2_BASE, + .end = EMMA2RH_PIIC2_BASE + 0x1000, + .flags = 0 + }, +}; + +struct platform_device i2c_emma_devices[] = { + [0] = { + .name = I2C_EMMA2RH, + .id = 0, + .resource = i2c_emma_resources_0, + .num_resources = ARRAY_SIZE(i2c_emma_resources_0), + }, + [1] = { + .name = I2C_EMMA2RH, + .id = 1, + .resource = i2c_emma_resources_1, + .num_resources = ARRAY_SIZE(i2c_emma_resources_1), + }, + [2] = { + .name = I2C_EMMA2RH, + .id = 2, + .resource = i2c_emma_resources_2, + .num_resources = ARRAY_SIZE(i2c_emma_resources_2), + }, +}; + +#define EMMA2RH_SERIAL_CLOCK 18544000 +#define EMMA2RH_SERIAL_FLAGS UPF_BOOT_AUTOCONF | UPF_SKIP_TEST + +static struct plat_serial8250_port platform_serial_ports[] = { + [0] = { + .membase= (void __iomem*)KSEG1ADDR(EMMA2RH_PFUR0_BASE + 3), + .mapbase = EMMA2RH_PFUR0_BASE + 3, + .irq = EMMA2RH_IRQ_PFUR0, + .uartclk = EMMA2RH_SERIAL_CLOCK, + .regshift = 4, + .iotype = UPIO_MEM, + .flags = EMMA2RH_SERIAL_FLAGS, + }, [1] = { + .membase = (void __iomem*)KSEG1ADDR(EMMA2RH_PFUR1_BASE + 3), + .mapbase = EMMA2RH_PFUR1_BASE + 3, + .irq = EMMA2RH_IRQ_PFUR1, + .uartclk = EMMA2RH_SERIAL_CLOCK, + .regshift = 4, + .iotype = UPIO_MEM, + .flags = EMMA2RH_SERIAL_FLAGS, + }, [2] = { + .membase = (void __iomem*)KSEG1ADDR(EMMA2RH_PFUR2_BASE + 3), + .mapbase = EMMA2RH_PFUR2_BASE + 3, + .irq = EMMA2RH_IRQ_PFUR2, + .uartclk = EMMA2RH_SERIAL_CLOCK, + .regshift = 4, + .iotype = UPIO_MEM, + .flags = EMMA2RH_SERIAL_FLAGS, + }, [3] = { + .flags = 0, + }, +}; + +static struct platform_device serial_emma = { + .name = "serial8250", + .dev = { + .platform_data = &platform_serial_ports, + }, +}; + +static struct mtd_partition markeins_parts[] = { + [0] = { + .name = "RootFS", + .offset = 0x00000000, + .size = 0x00c00000, + }, + [1] = { + .name = "boot code area", + .offset = MTDPART_OFS_APPEND, + .size = 0x00100000, + }, + [2] = { + .name = "kernel image", + .offset = MTDPART_OFS_APPEND, + .size = 0x00300000, + }, + [3] = { + .name = "RootFS2", + .offset = MTDPART_OFS_APPEND, + .size = 0x00c00000, + }, + [4] = { + .name = "boot code area2", + .offset = MTDPART_OFS_APPEND, + .size = 0x00100000, + }, + [5] = { + .name = "kernel image2", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct physmap_flash_data markeins_flash_data = { + .width = 2, + .nr_parts = ARRAY_SIZE(markeins_parts), + .parts = markeins_parts +}; + +static struct resource markeins_flash_resource = { + .start = 0x1e000000, + .end = 0x02000000, + .flags = IORESOURCE_MEM +}; + +static struct platform_device markeins_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &markeins_flash_data, + }, + .num_resources = 1, + .resource = &markeins_flash_resource, +}; + +static struct platform_device *devices[] = { + i2c_emma_devices, + i2c_emma_devices + 1, + i2c_emma_devices + 2, + &serial_emma, + &markeins_flash_device, +}; + +static int __init platform_devices_setup(void) +{ + return platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +arch_initcall(platform_devices_setup); diff --git a/kernel/arch/mips/emma/markeins/setup.c b/kernel/arch/mips/emma/markeins/setup.c new file mode 100644 index 000000000..9100122e5 --- /dev/null +++ b/kernel/arch/mips/emma/markeins/setup.c @@ -0,0 +1,128 @@ +/* + * Copyright (C) NEC Electronics Corporation 2004-2006 + * + * This file is based on the arch/mips/ddb5xxx/ddb5477/setup.c. + * + * Copyright 2001 MontaVista Software Inc. + * + * 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/init.h> +#include <linux/kernel.h> +#include <linux/types.h> + +#include <asm/time.h> +#include <asm/reboot.h> + +#include <asm/emma/emma2rh.h> + +#define USE_CPU_COUNTER_TIMER /* whether we use cpu counter */ + +extern void markeins_led(const char *); + +static int bus_frequency; + +static void markeins_machine_restart(char *command) +{ + static void (*back_to_prom) (void) = (void (*)(void))0xbfc00000; + + printk("cannot EMMA2RH Mark-eins restart.\n"); + markeins_led("restart."); + back_to_prom(); +} + +static void markeins_machine_halt(void) +{ + printk("EMMA2RH Mark-eins halted.\n"); + markeins_led("halted."); + while (1) ; +} + +static void markeins_machine_power_off(void) +{ + markeins_led("poweroff."); + while (1) ; +} + +static unsigned long __initdata emma2rh_clock[4] = { + 166500000, 187312500, 199800000, 210600000 +}; + +static unsigned int __init detect_bus_frequency(unsigned long rtc_base) +{ + u32 reg; + + /* detect from boot strap */ + reg = emma2rh_in32(EMMA2RH_BHIF_STRAP_0); + reg = (reg >> 4) & 0x3; + + return emma2rh_clock[reg]; +} + +void __init plat_time_init(void) +{ + u32 reg; + if (bus_frequency == 0) + bus_frequency = detect_bus_frequency(0); + + reg = emma2rh_in32(EMMA2RH_BHIF_STRAP_0); + if ((reg & 0x3) == 0) + reg = (reg >> 6) & 0x3; + else { + reg = emma2rh_in32(EMMA2RH_BHIF_MAIN_CTRL); + reg = (reg >> 4) & 0x3; + } + mips_hpt_frequency = (bus_frequency * (4 + reg)) / 4 / 2; +} + +static void markeins_board_init(void); +extern void markeins_irq_setup(void); + +static void inline __init markeins_sio_setup(void) +{ +} + +void __init plat_mem_setup(void) +{ + /* initialize board - we don't trust the loader */ + markeins_board_init(); + + set_io_port_base(KSEG1ADDR(EMMA2RH_PCI_IO_BASE)); + + _machine_restart = markeins_machine_restart; + _machine_halt = markeins_machine_halt; + pm_power_off = markeins_machine_power_off; + + /* setup resource limits */ + ioport_resource.start = EMMA2RH_PCI_IO_BASE; + ioport_resource.end = EMMA2RH_PCI_IO_BASE + EMMA2RH_PCI_IO_SIZE - 1; + iomem_resource.start = EMMA2RH_IO_BASE; + iomem_resource.end = EMMA2RH_ROM_BASE - 1; + + markeins_sio_setup(); +} + +static void __init markeins_board_init(void) +{ + u32 val; + + val = emma2rh_in32(EMMA2RH_PBRD_INT_EN); /* open serial interrupts. */ + emma2rh_out32(EMMA2RH_PBRD_INT_EN, val | 0xaa); + val = emma2rh_in32(EMMA2RH_PBRD_CLKSEL); /* set serial clocks. */ + emma2rh_out32(EMMA2RH_PBRD_CLKSEL, val | 0x5); /* 18MHz */ + emma2rh_out32(EMMA2RH_PCI_CONTROL, 0); + + markeins_led("MVL E2RH"); +} |