diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-21 12:04:45 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-24 20:05:19 +0100 |
commit | 82e6923e1862428b755ec306b3dbccf926849314 (patch) | |
tree | e0be095c30c7cbfeff2a2096cf53e9c2f92fed13 /arch/arm/mach-lh7a40x/irq-lpd7a40x.c | |
parent | Linux 2.6.38-rc2 (diff) | |
download | linux-82e6923e1862428b755ec306b3dbccf926849314.tar.xz linux-82e6923e1862428b755ec306b3dbccf926849314.zip |
ARM: lh7a40x: remove unmaintained platform support
lh7a40x has only been receiving updates for updates to generic code.
The last involvement from the maintainer according to the git logs was
in 2006. As such, it is a maintainence burden with no benefit.
This gets rid of two defconfigs.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-lh7a40x/irq-lpd7a40x.c')
-rw-r--r-- | arch/arm/mach-lh7a40x/irq-lpd7a40x.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/arm/mach-lh7a40x/irq-lpd7a40x.c b/arch/arm/mach-lh7a40x/irq-lpd7a40x.c deleted file mode 100644 index 1bfdcddcb93e..000000000000 --- a/arch/arm/mach-lh7a40x/irq-lpd7a40x.c +++ /dev/null @@ -1,128 +0,0 @@ -/* arch/arm/mach-lh7a40x/irq-lpd7a40x.c - * - * Copyright (C) 2004 Coastal Environmental Systems - * Copyright (C) 2004 Logic Product Development - * - * 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/init.h> -#include <linux/module.h> -#include <linux/interrupt.h> - -#include <mach/hardware.h> -#include <asm/irq.h> -#include <asm/mach/irq.h> -#include <mach/irqs.h> - -#include "common.h" - -static void lh7a40x_ack_cpld_irq(struct irq_data *d) -{ - /* CPLD doesn't have ack capability */ -} - -static void lh7a40x_mask_cpld_irq(struct irq_data *d) -{ - switch (d->irq) { - case IRQ_LPD7A40X_ETH_INT: - CPLD_INTERRUPTS = CPLD_INTERRUPTS | 0x4; - break; - case IRQ_LPD7A400_TS: - CPLD_INTERRUPTS = CPLD_INTERRUPTS | 0x8; - break; - } -} - -static void lh7a40x_unmask_cpld_irq(struct irq_data *d) -{ - switch (d->irq) { - case IRQ_LPD7A40X_ETH_INT: - CPLD_INTERRUPTS = CPLD_INTERRUPTS & ~ 0x4; - break; - case IRQ_LPD7A400_TS: - CPLD_INTERRUPTS = CPLD_INTERRUPTS & ~ 0x8; - break; - } -} - -static struct irq_chip lh7a40x_cpld_chip = { - .name = "CPLD", - .irq_ack = lh7a40x_ack_cpld_irq, - .irq_mask = lh7a40x_mask_cpld_irq, - .irq_unmask = lh7a40x_unmask_cpld_irq, -}; - -static void lh7a40x_cpld_handler (unsigned int irq, struct irq_desc *desc) -{ - unsigned int mask = CPLD_INTERRUPTS; - - desc->irq_data.chip->ack (irq); - - if ((mask & 0x1) == 0) /* WLAN */ - generic_handle_irq(IRQ_LPD7A40X_ETH_INT); - - if ((mask & 0x2) == 0) /* Touch */ - generic_handle_irq(IRQ_LPD7A400_TS); - - desc->irq_data.chip->unmask (irq); /* Level-triggered need this */ -} - - - /* IRQ initialization */ - -void __init lh7a40x_init_board_irq (void) -{ - int irq; - - /* Rev A (v2.8): PF0, PF1, PF2, and PF3 are available IRQs. - PF7 supports the CPLD. - Rev B (v3.4): PF0, PF1, and PF2 are available IRQs. - PF3 supports the CPLD. - (Some) LPD7A404 prerelease boards report a version - number of 0x16, but we force an override since the - hardware is of the newer variety. - */ - - unsigned char cpld_version = CPLD_REVISION; - int pinCPLD; - -#if defined CONFIG_MACH_LPD7A404 - cpld_version = 0x34; /* Override, for now */ -#endif - pinCPLD = (cpld_version == 0x28) ? 7 : 3; - - /* First, configure user controlled GPIOF interrupts */ - - GPIO_PFDD &= ~0x0f; /* PF0-3 are inputs */ - GPIO_INTTYPE1 &= ~0x0f; /* PF0-3 are level triggered */ - GPIO_INTTYPE2 &= ~0x0f; /* PF0-3 are active low */ - barrier (); - GPIO_GPIOFINTEN |= 0x0f; /* Enable PF0, PF1, PF2, and PF3 IRQs */ - - /* Then, configure CPLD interrupt */ - - CPLD_INTERRUPTS = 0x0c; /* Disable all CPLD interrupts */ - GPIO_PFDD &= ~(1 << pinCPLD); /* Make input */ - GPIO_INTTYPE1 |= (1 << pinCPLD); /* Edge triggered */ - GPIO_INTTYPE2 &= ~(1 << pinCPLD); /* Active low */ - barrier (); - GPIO_GPIOFINTEN |= (1 << pinCPLD); /* Enable */ - - /* Cascade CPLD interrupts */ - - for (irq = IRQ_BOARD_START; - irq < IRQ_BOARD_START + NR_IRQ_BOARD; ++irq) { - set_irq_chip (irq, &lh7a40x_cpld_chip); - set_irq_handler (irq, handle_edge_irq); - set_irq_flags (irq, IRQF_VALID); - } - - set_irq_chained_handler ((cpld_version == 0x28) - ? IRQ_CPLD_V28 - : IRQ_CPLD_V34, - lh7a40x_cpld_handler); -} |