diff options
Diffstat (limited to 'arch/arm/mach-ns9xxx/board-a9m9750dev.c')
| -rw-r--r-- | arch/arm/mach-ns9xxx/board-a9m9750dev.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/arch/arm/mach-ns9xxx/board-a9m9750dev.c b/arch/arm/mach-ns9xxx/board-a9m9750dev.c deleted file mode 100644 index e27687d..0000000 --- a/arch/arm/mach-ns9xxx/board-a9m9750dev.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * arch/arm/mach-ns9xxx/board-a9m9750dev.c - * - * Copyright (C) 2006,2007 by Digi International 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 version 2 as published by - * the Free Software Foundation. - */ -#include <linux/irq.h> - -#include <asm/mach/map.h> -#include <asm/gpio.h> - -#include <mach/board.h> -#include <mach/processor-ns9360.h> -#include <mach/regs-sys-ns9360.h> -#include <mach/regs-mem.h> -#include <mach/regs-bbu.h> -#include <mach/regs-board-a9m9750dev.h> - -#include "board-a9m9750dev.h" - -static struct map_desc board_a9m9750dev_io_desc[] __initdata = { - { /* FPGA on CS0 */ - .virtual = io_p2v(NS9XXX_CSxSTAT_PHYS(0)), - .pfn = __phys_to_pfn(NS9XXX_CSxSTAT_PHYS(0)), - .length = NS9XXX_CS0STAT_LENGTH, - .type = MT_DEVICE, - }, -}; - -void __init board_a9m9750dev_map_io(void) -{ - iotable_init(board_a9m9750dev_io_desc, - ARRAY_SIZE(board_a9m9750dev_io_desc)); -} - -static void a9m9750dev_fpga_ack_irq(struct irq_data *d) -{ - /* nothing */ -} - -static void a9m9750dev_fpga_mask_irq(struct irq_data *d) -{ - u8 ier; - - ier = __raw_readb(FPGA_IER); - - ier &= ~(1 << (d->irq - FPGA_IRQ(0))); - - __raw_writeb(ier, FPGA_IER); -} - -static void a9m9750dev_fpga_maskack_irq(struct irq_data *d) -{ - a9m9750dev_fpga_mask_irq(d); - a9m9750dev_fpga_ack_irq(d); -} - -static void a9m9750dev_fpga_unmask_irq(struct irq_data *d) -{ - u8 ier; - - ier = __raw_readb(FPGA_IER); - - ier |= 1 << (d->irq - FPGA_IRQ(0)); - - __raw_writeb(ier, FPGA_IER); -} - -static struct irq_chip a9m9750dev_fpga_chip = { - .irq_ack = a9m9750dev_fpga_ack_irq, - .irq_mask = a9m9750dev_fpga_mask_irq, - .irq_mask_ack = a9m9750dev_fpga_maskack_irq, - .irq_unmask = a9m9750dev_fpga_unmask_irq, -}; - -static void a9m9750dev_fpga_demux_handler(unsigned int irq, - struct irq_desc *desc) -{ - u8 stat = __raw_readb(FPGA_ISR); - - desc->irq_data.chip->irq_mask_ack(&desc->irq_data); - - while (stat != 0) { - int irqno = fls(stat) - 1; - - stat &= ~(1 << irqno); - - generic_handle_irq(FPGA_IRQ(irqno)); - } - - desc->irq_data.chip->irq_unmask(&desc->irq_data); -} - -void __init board_a9m9750dev_init_irq(void) -{ - u32 eic; - int i; - - if (gpio_request(11, "board a9m9750dev extirq2") == 0) - ns9360_gpio_configure(11, 0, 1); - else - printk(KERN_ERR "%s: cannot get gpio 11 for IRQ_NS9XXX_EXT2\n", - __func__); - - for (i = FPGA_IRQ(0); i <= FPGA_IRQ(7); ++i) { - irq_set_chip_and_handler(i, &a9m9750dev_fpga_chip, - handle_level_irq); - set_irq_flags(i, IRQF_VALID); - } - - /* IRQ_NS9XXX_EXT2: level sensitive + active low */ - eic = __raw_readl(SYS_EIC(2)); - REGSET(eic, SYS_EIC, PLTY, AL); - REGSET(eic, SYS_EIC, LVEDG, LEVEL); - __raw_writel(eic, SYS_EIC(2)); - - irq_set_chained_handler(IRQ_NS9XXX_EXT2, - a9m9750dev_fpga_demux_handler); -} - -void __init board_a9m9750dev_init_machine(void) -{ - u32 reg; - - /* setup static CS0: memory base ... */ - reg = __raw_readl(SYS_SMCSSMB(0)); - REGSETIM(reg, SYS_SMCSSMB, CSxB, NS9XXX_CSxSTAT_PHYS(0) >> 12); - __raw_writel(reg, SYS_SMCSSMB(0)); - - /* ... and mask */ - reg = __raw_readl(SYS_SMCSSMM(0)); - REGSETIM(reg, SYS_SMCSSMM, CSxM, 0xfffff); - REGSET(reg, SYS_SMCSSMM, CSEx, EN); - __raw_writel(reg, SYS_SMCSSMM(0)); - - /* setup static CS0: memory configuration */ - reg = __raw_readl(MEM_SMC(0)); - REGSET(reg, MEM_SMC, PSMC, OFF); - REGSET(reg, MEM_SMC, BSMC, OFF); - REGSET(reg, MEM_SMC, EW, OFF); - REGSET(reg, MEM_SMC, PB, 1); - REGSET(reg, MEM_SMC, PC, AL); - REGSET(reg, MEM_SMC, PM, DIS); - REGSET(reg, MEM_SMC, MW, 8); - __raw_writel(reg, MEM_SMC(0)); - - /* setup static CS0: timing */ - __raw_writel(0x2, MEM_SMWED(0)); - __raw_writel(0x2, MEM_SMOED(0)); - __raw_writel(0x6, MEM_SMRD(0)); - __raw_writel(0x6, MEM_SMWD(0)); -} |
