diff options
Diffstat (limited to 'arch/sh/boards/renesas/x3proto')
| -rw-r--r-- | arch/sh/boards/renesas/x3proto/Makefile | 1 | ||||
| -rw-r--r-- | arch/sh/boards/renesas/x3proto/ilsel.c | 151 | ||||
| -rw-r--r-- | arch/sh/boards/renesas/x3proto/setup.c | 136 |
3 files changed, 0 insertions, 288 deletions
diff --git a/arch/sh/boards/renesas/x3proto/Makefile b/arch/sh/boards/renesas/x3proto/Makefile deleted file mode 100644 index 983e4551fec..00000000000 --- a/arch/sh/boards/renesas/x3proto/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-y += setup.o ilsel.o diff --git a/arch/sh/boards/renesas/x3proto/ilsel.c b/arch/sh/boards/renesas/x3proto/ilsel.c deleted file mode 100644 index b5c673c3933..00000000000 --- a/arch/sh/boards/renesas/x3proto/ilsel.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * arch/sh/boards/renesas/x3proto/ilsel.c - * - * Helper routines for SH-X3 proto board ILSEL. - * - * Copyright (C) 2007 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/bitmap.h> -#include <linux/io.h> -#include <asm/ilsel.h> - -/* - * ILSEL is split across: - * - * ILSEL0 - 0xb8100004 [ Levels 1 - 4 ] - * ILSEL1 - 0xb8100006 [ Levels 5 - 8 ] - * ILSEL2 - 0xb8100008 [ Levels 9 - 12 ] - * ILSEL3 - 0xb810000a [ Levels 13 - 15 ] - * - * With each level being relative to an ilsel_source_t. - */ -#define ILSEL_BASE 0xb8100004 -#define ILSEL_LEVELS 15 - -/* - * ILSEL level map, in descending order from the highest level down. - * - * Supported levels are 1 - 15 spread across ILSEL0 - ILSEL4, mapping - * directly to IRLs. As the IRQs are numbered in reverse order relative - * to the interrupt level, the level map is carefully managed to ensure a - * 1:1 mapping between the bit position and the IRQ number. - * - * This careful constructions allows ilsel_enable*() to be referenced - * directly for hooking up an ILSEL set and getting back an IRQ which can - * subsequently be used for internal accounting in the (optional) disable - * path. - */ -static unsigned long ilsel_level_map; - -static inline unsigned int ilsel_offset(unsigned int bit) -{ - return ILSEL_LEVELS - bit - 1; -} - -static inline unsigned long mk_ilsel_addr(unsigned int bit) -{ - return ILSEL_BASE + ((ilsel_offset(bit) >> 1) & ~0x1); -} - -static inline unsigned int mk_ilsel_shift(unsigned int bit) -{ - return (ilsel_offset(bit) & 0x3) << 2; -} - -static void __ilsel_enable(ilsel_source_t set, unsigned int bit) -{ - unsigned int tmp, shift; - unsigned long addr; - - addr = mk_ilsel_addr(bit); - shift = mk_ilsel_shift(bit); - - pr_debug("%s: bit#%d: addr - 0x%08lx (shift %d, set %d)\n", - __func__, bit, addr, shift, set); - - tmp = ctrl_inw(addr); - tmp &= ~(0xf << shift); - tmp |= set << shift; - ctrl_outw(tmp, addr); -} - -/** - * ilsel_enable - Enable an ILSEL set. - * @set: ILSEL source (see ilsel_source_t enum in include/asm-sh/ilsel.h). - * - * Enables a given non-aliased ILSEL source (<= ILSEL_KEY) at the highest - * available interrupt level. Callers should take care to order callsites - * noting descending interrupt levels. Aliasing FPGA and external board - * IRQs need to use ilsel_enable_fixed(). - * - * The return value is an IRQ number that can later be taken down with - * ilsel_disable(). - */ -int ilsel_enable(ilsel_source_t set) -{ - unsigned int bit; - - /* Aliased sources must use ilsel_enable_fixed() */ - BUG_ON(set > ILSEL_KEY); - - do { - bit = find_first_zero_bit(&ilsel_level_map, ILSEL_LEVELS); - } while (test_and_set_bit(bit, &ilsel_level_map)); - - __ilsel_enable(set, bit); - - return bit; -} -EXPORT_SYMBOL_GPL(ilsel_enable); - -/** - * ilsel_enable_fixed - Enable an ILSEL set at a fixed interrupt level - * @set: ILSEL source (see ilsel_source_t enum in include/asm-sh/ilsel.h). - * @level: Interrupt level (1 - 15) - * - * Enables a given ILSEL source at a fixed interrupt level. Necessary - * both for level reservation as well as for aliased sources that only - * exist on special ILSEL#s. - * - * Returns an IRQ number (as ilsel_enable()). - */ -int ilsel_enable_fixed(ilsel_source_t set, unsigned int level) -{ - unsigned int bit = ilsel_offset(level - 1); - - if (test_and_set_bit(bit, &ilsel_level_map)) - return -EBUSY; - - __ilsel_enable(set, bit); - - return bit; -} -EXPORT_SYMBOL_GPL(ilsel_enable_fixed); - -/** - * ilsel_disable - Disable an ILSEL set - * @irq: Bit position for ILSEL set value (retval from enable routines) - * - * Disable a previously enabled ILSEL set. - */ -void ilsel_disable(unsigned int irq) -{ - unsigned long addr; - unsigned int tmp; - - addr = mk_ilsel_addr(irq); - - tmp = ctrl_inw(addr); - tmp &= ~(0xf << mk_ilsel_shift(irq)); - ctrl_outw(tmp, addr); - - clear_bit(irq, &ilsel_level_map); -} -EXPORT_SYMBOL_GPL(ilsel_disable); diff --git a/arch/sh/boards/renesas/x3proto/setup.c b/arch/sh/boards/renesas/x3proto/setup.c deleted file mode 100644 index abc5b6d418f..00000000000 --- a/arch/sh/boards/renesas/x3proto/setup.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * arch/sh/boards/renesas/x3proto/setup.c - * - * Renesas SH-X3 Prototype Board Support. - * - * Copyright (C) 2007 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/kernel.h> -#include <linux/io.h> -#include <asm/ilsel.h> - -static struct resource heartbeat_resources[] = { - [0] = { - .start = 0xb8140020, - .end = 0xb8140020, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device heartbeat_device = { - .name = "heartbeat", - .id = -1, - .num_resources = ARRAY_SIZE(heartbeat_resources), - .resource = heartbeat_resources, -}; - -static struct resource smc91x_resources[] = { - [0] = { - .start = 0x18000300, - .end = 0x18000300 + 0x10 - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - /* Filled in by ilsel */ - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device smc91x_device = { - .name = "smc91x", - .id = -1, - .resource = smc91x_resources, - .num_resources = ARRAY_SIZE(smc91x_resources), -}; - -static struct resource r8a66597_usb_host_resources[] = { - [0] = { - .name = "r8a66597_hcd", - .start = 0x18040000, - .end = 0x18080000 - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .name = "r8a66597_hcd", - /* Filled in by ilsel */ - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device r8a66597_usb_host_device = { - .name = "r8a66597_hcd", - .id = -1, - .dev = { - .dma_mask = NULL, /* don't use dma */ - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(r8a66597_usb_host_resources), - .resource = r8a66597_usb_host_resources, -}; - -static struct resource m66592_usb_peripheral_resources[] = { - [0] = { - .name = "m66592_udc", - .start = 0x18080000, - .end = 0x180c0000 - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .name = "m66592_udc", - /* Filled in by ilsel */ - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m66592_usb_peripheral_device = { - .name = "m66592_udc", - .id = -1, - .dev = { - .dma_mask = NULL, /* don't use dma */ - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(m66592_usb_peripheral_resources), - .resource = m66592_usb_peripheral_resources, -}; - -static struct platform_device *x3proto_devices[] __initdata = { - &heartbeat_device, - &smc91x_device, - &r8a66597_usb_host_device, - &m66592_usb_peripheral_device, -}; - -static int __init x3proto_devices_setup(void) -{ - r8a66597_usb_host_resources[1].start = - r8a66597_usb_host_resources[1].end = ilsel_enable(ILSEL_USBH_I); - - m66592_usb_peripheral_resources[1].start = - m66592_usb_peripheral_resources[1].end = ilsel_enable(ILSEL_USBP_I); - - smc91x_resources[1].start = - smc91x_resources[1].end = ilsel_enable(ILSEL_LAN); - - return platform_add_devices(x3proto_devices, - ARRAY_SIZE(x3proto_devices)); -} -device_initcall(x3proto_devices_setup); - -static void __init x3proto_init_irq(void) -{ - plat_irq_setup_pins(IRQ_MODE_IRL3210); - - /* Set ICR0.LVLMODE */ - ctrl_outl(ctrl_inl(0xfe410000) | (1 << 21), 0xfe410000); -} - -static struct sh_machine_vector mv_x3proto __initmv = { - .mv_name = "x3proto", - .mv_init_irq = x3proto_init_irq, -}; |