diff options
Diffstat (limited to 'arch/mips/alchemy/devboards/pb1000/board_setup.c')
| -rw-r--r-- | arch/mips/alchemy/devboards/pb1000/board_setup.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/arch/mips/alchemy/devboards/pb1000/board_setup.c b/arch/mips/alchemy/devboards/pb1000/board_setup.c deleted file mode 100644 index e64fdcb..0000000 --- a/arch/mips/alchemy/devboards/pb1000/board_setup.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Copyright 2000, 2008 MontaVista Software Inc. - * Author: MontaVista Software, Inc. <source@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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/pm.h> -#include <asm/mach-au1x00/au1000.h> -#include <asm/mach-pb1x00/pb1000.h> -#include <asm/reboot.h> -#include <prom.h> - -#include "../platform.h" - -const char *get_system_type(void) -{ - return "Alchemy Pb1000"; -} - -static void board_reset(char *c) -{ - asm volatile ("jr %0" : : "r" (0xbfc00000)); -} - -static void board_power_off(void) -{ - while (1) - asm volatile ( - " .set mips32 \n" - " wait \n" - " .set mips0 \n"); -} - -void __init board_setup(void) -{ - u32 pin_func, static_cfg0; - u32 sys_freqctrl, sys_clksrc; - u32 prid = read_c0_prid(); - - sys_freqctrl = 0; - sys_clksrc = 0; - - /* Set AUX clock to 12 MHz * 8 = 96 MHz */ - au_writel(8, SYS_AUXPLL); - alchemy_gpio1_input_enable(); - udelay(100); - -#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) - /* Zero and disable FREQ2 */ - sys_freqctrl = au_readl(SYS_FREQCTRL0); - sys_freqctrl &= ~0xFFF00000; - au_writel(sys_freqctrl, SYS_FREQCTRL0); - - /* Zero and disable USBH/USBD clocks */ - sys_clksrc = au_readl(SYS_CLKSRC); - sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK | - SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK); - au_writel(sys_clksrc, SYS_CLKSRC); - - sys_freqctrl = au_readl(SYS_FREQCTRL0); - sys_freqctrl &= ~0xFFF00000; - - sys_clksrc = au_readl(SYS_CLKSRC); - sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK | - SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK); - - switch (prid & 0x000000FF) { - case 0x00: /* DA */ - case 0x01: /* HA */ - case 0x02: /* HB */ - /* CPU core freq to 48 MHz to slow it way down... */ - au_writel(4, SYS_CPUPLL); - - /* - * Setup 48 MHz FREQ2 from CPUPLL for USB Host - * FRDIV2 = 3 -> div by 8 of 384 MHz -> 48 MHz - */ - sys_freqctrl |= (3 << SYS_FC_FRDIV2_BIT) | SYS_FC_FE2; - au_writel(sys_freqctrl, SYS_FREQCTRL0); - - /* CPU core freq to 384 MHz */ - au_writel(0x20, SYS_CPUPLL); - - printk(KERN_INFO "Au1000: 48 MHz OHCI workaround enabled\n"); - break; - - default: /* HC and newer */ - /* FREQ2 = aux / 2 = 48 MHz */ - sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) | - SYS_FC_FE2 | SYS_FC_FS2; - au_writel(sys_freqctrl, SYS_FREQCTRL0); - break; - } - - /* - * Route 48 MHz FREQ2 into USB Host and/or Device - */ - sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MUH_BIT; - au_writel(sys_clksrc, SYS_CLKSRC); - - /* Configure pins GPIO[14:9] as GPIO */ - pin_func = au_readl(SYS_PINFUNC) & ~(SYS_PF_UR3 | SYS_PF_USB); - - /* 2nd USB port is USB host */ - pin_func |= SYS_PF_USB; - - au_writel(pin_func, SYS_PINFUNC); - - alchemy_gpio_direction_input(11); - alchemy_gpio_direction_input(13); - alchemy_gpio_direction_output(4, 0); - alchemy_gpio_direction_output(5, 0); -#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */ - - /* Make GPIO 15 an input (for interrupt line) */ - pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_IRF; - /* We don't need I2S, so make it available for GPIO[31:29] */ - pin_func |= SYS_PF_I2S; - au_writel(pin_func, SYS_PINFUNC); - - alchemy_gpio_direction_input(15); - - static_cfg0 = au_readl(MEM_STCFG0) & ~0xc00; - au_writel(static_cfg0, MEM_STCFG0); - - /* configure RCE2* for LCD */ - au_writel(0x00000004, MEM_STCFG2); - - /* MEM_STTIME2 */ - au_writel(0x09000000, MEM_STTIME2); - - /* Set 32-bit base address decoding for RCE2* */ - au_writel(0x10003ff0, MEM_STADDR2); - - /* - * PCI CPLD setup - * Expand CE0 to cover PCI - */ - au_writel(0x11803e40, MEM_STADDR1); - - /* Burst visibility on */ - au_writel(au_readl(MEM_STCFG0) | 0x1000, MEM_STCFG0); - - au_writel(0x83, MEM_STCFG1); /* ewait enabled, flash timing */ - au_writel(0x33030a10, MEM_STTIME1); /* slower timing for FPGA */ - - /* Setup the static bus controller */ - au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */ - au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */ - au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */ - - /* - * Enable Au1000 BCLK switching - note: sed1356 must not use - * its BCLK (Au1000 LCLK) for any timings - */ - switch (prid & 0x000000FF) { - case 0x00: /* DA */ - case 0x01: /* HA */ - case 0x02: /* HB */ - break; - default: /* HC and newer */ - /* - * Enable sys bus clock divider when IDLE state or no bus - * activity. - */ - au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL); - break; - } - - pm_power_off = board_power_off; - _machine_halt = board_power_off; - _machine_restart = board_reset; -} - -static int __init pb1000_init_irq(void) -{ - irq_set_irq_type(AU1000_GPIO15_INT, IRQF_TRIGGER_LOW); - return 0; -} -arch_initcall(pb1000_init_irq); - -static int __init pb1000_device_init(void) -{ - return db1x_register_norflash(8 * 1024 * 1024, 4, 0); -} -device_initcall(pb1000_device_init); |