diff options
Diffstat (limited to 'arch/mips/basler/excite/excite_setup.c')
| -rw-r--r-- | arch/mips/basler/excite/excite_setup.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/arch/mips/basler/excite/excite_setup.c b/arch/mips/basler/excite/excite_setup.c deleted file mode 100644 index d66b3b8..0000000 --- a/arch/mips/basler/excite/excite_setup.c +++ /dev/null @@ -1,302 +0,0 @@ -/* - * Copyright (C) 2004, 2005 by Basler Vision Technologies AG - * Author: Thomas Koeller <thomas.koeller@baslerweb.com> - * Based on the PMC-Sierra Yosemite board support by Ralf Baechle and - * Manish Lachwani. - * - * 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/kernel.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/tty.h> -#include <linux/serial_core.h> -#include <linux/serial.h> -#include <linux/serial_8250.h> -#include <linux/ioport.h> -#include <linux/spinlock.h> -#include <asm/bootinfo.h> -#include <asm/mipsregs.h> -#include <asm/pgtable-32.h> -#include <asm/io.h> -#include <asm/time.h> -#include <asm/rm9k-ocd.h> - -#include <excite.h> - -#define TITAN_UART_CLK 25000000 - -#if 1 -/* normal serial port assignment */ -#define REGBASE_SER0 0x0208 -#define REGBASE_SER1 0x0238 -#define MASK_SER0 0x1 -#define MASK_SER1 0x2 -#else -/* serial ports swapped */ -#define REGBASE_SER0 0x0238 -#define REGBASE_SER1 0x0208 -#define MASK_SER0 0x2 -#define MASK_SER1 0x1 -#endif - -unsigned long memsize; -char modetty[30]; -unsigned int titan_irq = TITAN_IRQ; -static void __iomem * ctl_regs; -u32 unit_id; - -volatile void __iomem * const ocd_base = (void *) (EXCITE_ADDR_OCD); -volatile void __iomem * const titan_base = (void *) (EXCITE_ADDR_TITAN); - -/* Protect access to shared GPI registers */ -DEFINE_SPINLOCK(titan_lock); -int titan_irqflags; - - -/* - * The eXcite platform uses the alternate timer interrupt - * - * Fixme: At the time of this writing cevt-r4k.c doesn't yet know about how - * to handle the alternate timer interrupt of the RM9000. - */ -void __init plat_time_init(void) -{ - const u32 modebit5 = ocd_readl(0x00e4); - unsigned int mult = ((modebit5 >> 11) & 0x1f) + 2; - unsigned int div = ((modebit5 >> 16) & 0x1f) + 2; - - if (div == 33) - div = 1; - mips_hpt_frequency = EXCITE_CPU_EXT_CLOCK * mult / div / 2; -} - -static int __init excite_init_console(void) -{ -#if defined(CONFIG_SERIAL_8250) - static __initdata char serr[] = - KERN_ERR "Serial port #%u setup failed\n"; - struct uart_port up; - - /* Take the DUART out of reset */ - titan_writel(0x00ff1cff, CPRR); - -#if (CONFIG_SERIAL_8250_NR_UARTS > 1) - /* Enable both ports */ - titan_writel(MASK_SER0 | MASK_SER1, UACFG); -#else - /* Enable port #0 only */ - titan_writel(MASK_SER0, UACFG); -#endif - - /* - * Set up serial port #0. Do not use autodetection; the result is - * not what we want. - */ - memset(&up, 0, sizeof(up)); - up.membase = (char *) titan_addr(REGBASE_SER0); - up.irq = TITAN_IRQ; - up.uartclk = TITAN_UART_CLK; - up.regshift = 0; - up.iotype = UPIO_RM9000; - up.type = PORT_RM9000; - up.flags = UPF_SHARE_IRQ; - up.line = 0; - if (early_serial_setup(&up)) - printk(serr, up.line); - -#if CONFIG_SERIAL_8250_NR_UARTS > 1 - /* And now for port #1. */ - up.membase = (char *) titan_addr(REGBASE_SER1); - up.line = 1; - if (early_serial_setup(&up)) - printk(serr, up.line); -#endif /* CONFIG_SERIAL_8250_NR_UARTS > 1 */ -#else - /* Leave the DUART in reset */ - titan_writel(0x00ff3cff, CPRR); -#endif /* defined(CONFIG_SERIAL_8250) */ - - return 0; -} - -static int __init excite_platform_init(void) -{ - unsigned int i; - unsigned char buf[3]; - u8 reg; - void __iomem * dpr; - - /* BIU buffer allocations */ - ocd_writel(8, CPURSLMT); /* CPU */ - titan_writel(4, CPGRWL); /* GPI / Ethernet */ - - /* Map control registers located in FPGA */ - ctl_regs = ioremap_nocache(EXCITE_PHYS_FPGA + EXCITE_FPGA_SYSCTL, 16); - if (!ctl_regs) - panic("eXcite: failed to map platform control registers\n"); - memcpy_fromio(buf, ctl_regs + 2, ARRAY_SIZE(buf)); - unit_id = buf[0] | (buf[1] << 8) | (buf[2] << 16); - - /* Clear the reboot flag */ - dpr = ioremap_nocache(EXCITE_PHYS_FPGA + EXCITE_FPGA_DPR, 1); - reg = __raw_readb(dpr); - __raw_writeb(reg & 0x7f, dpr); - iounmap(dpr); - - /* Interrupt controller setup */ - for (i = INTP0Status0; i < INTP0Status0 + 0x80; i += 0x10) { - ocd_writel(0x00000000, i + 0x04); - ocd_writel(0xffffffff, i + 0x0c); - } - ocd_writel(0x2, NMICONFIG); - - ocd_writel(0x1 << (TITAN_MSGINT % 0x20), - INTP0Mask0 + (0x10 * (TITAN_MSGINT / 0x20))); - ocd_writel((0x1 << (FPGA0_MSGINT % 0x20)) - | ocd_readl(INTP0Mask0 + (0x10 * (FPGA0_MSGINT / 0x20))), - INTP0Mask0 + (0x10 * (FPGA0_MSGINT / 0x20))); - ocd_writel((0x1 << (FPGA1_MSGINT % 0x20)) - | ocd_readl(INTP0Mask0 + (0x10 * (FPGA1_MSGINT / 0x20))), - INTP0Mask0 + (0x10 * (FPGA1_MSGINT / 0x20))); - ocd_writel((0x1 << (PHY_MSGINT % 0x20)) - | ocd_readl(INTP0Mask0 + (0x10 * (PHY_MSGINT / 0x20))), - INTP0Mask0 + (0x10 * (PHY_MSGINT / 0x20))); -#if USB_IRQ < 10 - ocd_writel((0x1 << (USB_MSGINT % 0x20)) - | ocd_readl(INTP0Mask0 + (0x10 * (USB_MSGINT / 0x20))), - INTP0Mask0 + (0x10 * (USB_MSGINT / 0x20))); -#endif - /* Enable the packet FIFO, XDMA and XDMA arbiter */ - titan_writel(0x00ff18ff, CPRR); - - /* - * Set up the PADMUX. Power down all ethernet slices, - * they will be powered up and configured at device startup. - */ - titan_writel(0x00878206, CPTC1R); - titan_writel(0x00001100, CPTC0R); /* latch PADMUX, enable WCIMODE */ - - /* Reset and enable the FIFO block */ - titan_writel(0x00000001, SDRXFCIE); - titan_writel(0x00000001, SDTXFCIE); - titan_writel(0x00000100, SDRXFCIE); - titan_writel(0x00000000, SDTXFCIE); - - /* - * Initialize the common interrupt shared by all components of - * the GPI/Ethernet subsystem. - */ - titan_writel((EXCITE_PHYS_OCD >> 12), CPCFG0); - titan_writel(TITAN_MSGINT, CPCFG1); - - /* - * XDMA configuration. - * In order for the XDMA to be sharable among multiple drivers, - * the setup must be done here in the platform. The reason is that - * this setup can only be done while the XDMA is in reset. If this - * were done in a driver, it would interrupt all other drivers - * using the XDMA. - */ - titan_writel(0x80021dff, GXCFG); /* XDMA reset */ - titan_writel(0x00000000, CPXCISRA); - titan_writel(0x00000000, CPXCISRB); /* clear pending interrupts */ -#if defined(CONFIG_HIGHMEM) -# error change for HIGHMEM support! -#else - titan_writel(0x00000000, GXDMADRPFX); /* buffer address prefix */ -#endif - titan_writel(0, GXDMA_DESCADR); - - for (i = 0x5040; i <= 0x5300; i += 0x0040) - titan_writel(0x80080000, i); /* reset channel */ - - titan_writel((0x1 << 29) /* no sparse tx descr. */ - | (0x1 << 28) /* no sparse rx descr. */ - | (0x1 << 23) | (0x1 << 24) /* descriptor coherency */ - | (0x1 << 21) | (0x1 << 22) /* data coherency */ - | (0x1 << 17) - | 0x1dff, - GXCFG); - -#if defined(CONFIG_SMP) -# error No SMP support -#else - /* All interrupts go to core #0 only. */ - titan_writel(0x1f007fff, CPDST0A); - titan_writel(0x00000000, CPDST0B); - titan_writel(0x0000ff3f, CPDST1A); - titan_writel(0x00000000, CPDST1B); - titan_writel(0x00ffffff, CPXDSTA); - titan_writel(0x00000000, CPXDSTB); -#endif - - /* Enable DUART interrupts, disable everything else. */ - titan_writel(0x04000000, CPGIG0ER); - titan_writel(0x000000c0, CPGIG1ER); - - excite_procfs_init(); - return 0; -} - -void __init plat_mem_setup(void) -{ - volatile u32 * const boot_ocd_base = (u32 *) 0xbf7fc000; - - /* Announce RAM to system */ - add_memory_region(0x00000000, memsize, BOOT_MEM_RAM); - - /* Set up the peripheral address map */ - *(boot_ocd_base + (LKB9 / sizeof(u32))) = 0; - *(boot_ocd_base + (LKB10 / sizeof(u32))) = 0; - *(boot_ocd_base + (LKB11 / sizeof(u32))) = 0; - *(boot_ocd_base + (LKB12 / sizeof(u32))) = 0; - wmb(); - *(boot_ocd_base + (LKB0 / sizeof(u32))) = EXCITE_PHYS_OCD >> 4; - wmb(); - - ocd_writel((EXCITE_PHYS_TITAN >> 4) | 0x1UL, LKB5); - ocd_writel(((EXCITE_SIZE_TITAN >> 4) & 0x7fffff00) - 0x100, LKM5); - ocd_writel((EXCITE_PHYS_SCRAM >> 4) | 0x1UL, LKB13); - ocd_writel(((EXCITE_SIZE_SCRAM >> 4) & 0xffffff00) - 0x100, LKM13); - - /* Local bus slot #0 */ - ocd_writel(0x00040510, LDP0); - ocd_writel((EXCITE_PHYS_BOOTROM >> 4) | 0x1UL, LKB9); - ocd_writel(((EXCITE_SIZE_BOOTROM >> 4) & 0x03ffff00) - 0x100, LKM9); - - /* Local bus slot #2 */ - ocd_writel(0x00000330, LDP2); - ocd_writel((EXCITE_PHYS_FPGA >> 4) | 0x1, LKB11); - ocd_writel(((EXCITE_SIZE_FPGA >> 4) - 0x100) & 0x03ffff00, LKM11); - - /* Local bus slot #3 */ - ocd_writel(0x00123413, LDP3); - ocd_writel((EXCITE_PHYS_NAND >> 4) | 0x1, LKB12); - ocd_writel(((EXCITE_SIZE_NAND >> 4) - 0x100) & 0x03ffff00, LKM12); -} - - - -console_initcall(excite_init_console); -arch_initcall(excite_platform_init); - -EXPORT_SYMBOL(titan_lock); -EXPORT_SYMBOL(titan_irqflags); -EXPORT_SYMBOL(titan_irq); -EXPORT_SYMBOL(ocd_base); -EXPORT_SYMBOL(titan_base); |
