summaryrefslogtreecommitdiff
path: root/arch/arm/mach-stmp378x/stmp378x.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 15:15:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 15:15:27 -0700
commit42cd71bf1e3a081b3150018bbf448cb6c8a844a5 (patch)
tree4a5d2eb0444255e4ad827a76dbd1417dd3876db6 /arch/arm/mach-stmp378x/stmp378x.c
parentf5039935ac685b3b9b8c13fbc33cac8643dee32e (diff)
parent9a55d9752d8abfc62f1ab05ccc790d22a0c8e7c0 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (137 commits) ARM: bcmring: convert to use sp804 clockevents ARM: bcmring: convert to sp804 clocksource ARM: 6912/1: bcmring: Add clkdev table in init_early clockevents: ARM sp804: obtain sp804 timer rate via clks clockevents: ARM sp804: allow clockevent name to be specified clocksource: ARM sp804: obtain sp804 timer rate via clks clocksource: ARM sp804: allow clocksource name to be specified clocksource: convert OMAP1 to 32-bit down counting clocksource clocksource: convert MXS timrotv2 to 32-bit down counting clocksource clocksource: convert SPEAr platforms 16-bit up counting clocksource clocksource: convert Integrator/AP 16-bit down counting clocksource clocksource: convert W90x900 24-bit down counting clocksource clocksource: convert ARM 32-bit down counting clocksources clocksource: convert ARM 32-bit up counting clocksources clocksource: add common mmio clocksource ARM: update sa1100 to reflect PXA updates ARM: omap1: convert to using readl/writel instead of volatile struct ARM: omap1: delete useless interrupt handler ARM: s5p: consolidate selection of timer register ARM: 6939/1: fix missing 'cpu_relax()' declaration ...
Diffstat (limited to 'arch/arm/mach-stmp378x/stmp378x.c')
-rw-r--r--arch/arm/mach-stmp378x/stmp378x.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/arch/arm/mach-stmp378x/stmp378x.c b/arch/arm/mach-stmp378x/stmp378x.c
deleted file mode 100644
index c2f9fe04c11..00000000000
--- a/arch/arm/mach-stmp378x/stmp378x.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Freescale STMP378X platform support
- *
- * Embedded Alley Solutions, Inc <source@embeddedalley.com>
- *
- * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
- */
-
-/*
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/irq.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/dma.h>
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/irq.h>
-#include <asm/mach/map.h>
-#include <asm/mach/time.h>
-
-#include <mach/pins.h>
-#include <mach/pinmux.h>
-#include <mach/dma.h>
-#include <mach/hardware.h>
-#include <mach/system.h>
-#include <mach/platform.h>
-#include <mach/stmp3xxx.h>
-#include <mach/regs-icoll.h>
-#include <mach/regs-apbh.h>
-#include <mach/regs-apbx.h>
-#include <mach/regs-pxp.h>
-#include <mach/regs-i2c.h>
-
-#include "stmp378x.h"
-/*
- * IRQ handling
- */
-static void stmp378x_ack_irq(struct irq_data *d)
-{
- /* Tell ICOLL to release IRQ line */
- __raw_writel(0, REGS_ICOLL_BASE + HW_ICOLL_VECTOR);
-
- /* ACK current interrupt */
- __raw_writel(0x01 /* BV_ICOLL_LEVELACK_IRQLEVELACK__LEVEL0 */,
- REGS_ICOLL_BASE + HW_ICOLL_LEVELACK);
-
- /* Barrier */
- (void)__raw_readl(REGS_ICOLL_BASE + HW_ICOLL_STAT);
-}
-
-static void stmp378x_mask_irq(struct irq_data *d)
-{
- /* IRQ disable */
- stmp3xxx_clearl(BM_ICOLL_INTERRUPTn_ENABLE,
- REGS_ICOLL_BASE + HW_ICOLL_INTERRUPTn + d->irq * 0x10);
-}
-
-static void stmp378x_unmask_irq(struct irq_data *d)
-{
- /* IRQ enable */
- stmp3xxx_setl(BM_ICOLL_INTERRUPTn_ENABLE,
- REGS_ICOLL_BASE + HW_ICOLL_INTERRUPTn + d->irq * 0x10);
-}
-
-static struct irq_chip stmp378x_chip = {
- .irq_ack = stmp378x_ack_irq,
- .irq_mask = stmp378x_mask_irq,
- .irq_unmask = stmp378x_unmask_irq,
-};
-
-void __init stmp378x_init_irq(void)
-{
- stmp3xxx_init_irq(&stmp378x_chip);
-}
-
-/*
- * DMA interrupt handling
- */
-void stmp3xxx_arch_dma_enable_interrupt(int channel)
-{
- void __iomem *c1, *c2;
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- c1 = REGS_APBH_BASE + HW_APBH_CTRL1;
- c2 = REGS_APBH_BASE + HW_APBH_CTRL2;
- break;
-
- case STMP3XXX_BUS_APBX:
- c1 = REGS_APBX_BASE + HW_APBX_CTRL1;
- c2 = REGS_APBX_BASE + HW_APBX_CTRL2;
- break;
-
- default:
- return;
- }
- stmp3xxx_setl(1 << (16 + STMP3XXX_DMA_CHANNEL(channel)), c1);
- stmp3xxx_setl(1 << (16 + STMP3XXX_DMA_CHANNEL(channel)), c2);
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_enable_interrupt);
-
-void stmp3xxx_arch_dma_clear_interrupt(int channel)
-{
- void __iomem *c1, *c2;
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- c1 = REGS_APBH_BASE + HW_APBH_CTRL1;
- c2 = REGS_APBH_BASE + HW_APBH_CTRL2;
- break;
-
- case STMP3XXX_BUS_APBX:
- c1 = REGS_APBX_BASE + HW_APBX_CTRL1;
- c2 = REGS_APBX_BASE + HW_APBX_CTRL2;
- break;
-
- default:
- return;
- }
- stmp3xxx_clearl(1 << STMP3XXX_DMA_CHANNEL(channel), c1);
- stmp3xxx_clearl(1 << STMP3XXX_DMA_CHANNEL(channel), c2);
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_clear_interrupt);
-
-int stmp3xxx_arch_dma_is_interrupt(int channel)
-{
- int r = 0;
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- r = __raw_readl(REGS_APBH_BASE + HW_APBH_CTRL1) &
- (1 << STMP3XXX_DMA_CHANNEL(channel));
- break;
-
- case STMP3XXX_BUS_APBX:
- r = __raw_readl(REGS_APBX_BASE + HW_APBX_CTRL1) &
- (1 << STMP3XXX_DMA_CHANNEL(channel));
- break;
- }
- return r;
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_is_interrupt);
-
-void stmp3xxx_arch_dma_reset_channel(int channel)
-{
- unsigned chbit = 1 << STMP3XXX_DMA_CHANNEL(channel);
- void __iomem *c0;
- u32 mask;
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- c0 = REGS_APBH_BASE + HW_APBH_CTRL0;
- mask = chbit << BP_APBH_CTRL0_RESET_CHANNEL;
- break;
- case STMP3XXX_BUS_APBX:
- c0 = REGS_APBX_BASE + HW_APBX_CHANNEL_CTRL;
- mask = chbit << BP_APBX_CHANNEL_CTRL_RESET_CHANNEL;
- break;
- default:
- return;
- }
-
- /* Reset channel and wait for it to complete */
- stmp3xxx_setl(mask, c0);
- while (__raw_readl(c0) & mask)
- cpu_relax();
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_reset_channel);
-
-void stmp3xxx_arch_dma_freeze(int channel)
-{
- unsigned chbit = 1 << STMP3XXX_DMA_CHANNEL(channel);
- u32 mask = 1 << chbit;
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- stmp3xxx_setl(mask, REGS_APBH_BASE + HW_APBH_CTRL0);
- break;
- case STMP3XXX_BUS_APBX:
- stmp3xxx_setl(mask, REGS_APBX_BASE + HW_APBX_CHANNEL_CTRL);
- break;
- }
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_freeze);
-
-void stmp3xxx_arch_dma_unfreeze(int channel)
-{
- unsigned chbit = 1 << STMP3XXX_DMA_CHANNEL(channel);
- u32 mask = 1 << chbit;
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- stmp3xxx_clearl(mask, REGS_APBH_BASE + HW_APBH_CTRL0);
- break;
- case STMP3XXX_BUS_APBX:
- stmp3xxx_clearl(mask, REGS_APBX_BASE + HW_APBX_CHANNEL_CTRL);
- break;
- }
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_unfreeze);
-
-/*
- * The registers are all very closely mapped, so we might as well map them all
- * with a single mapping
- *
- * Logical Physical
- * f0000000 80000000 On-chip registers
- * f1000000 00000000 32k on-chip SRAM
- */
-
-static struct map_desc stmp378x_io_desc[] __initdata = {
- {
- .virtual = (u32)STMP3XXX_REGS_BASE,
- .pfn = __phys_to_pfn(STMP3XXX_REGS_PHBASE),
- .length = STMP3XXX_REGS_SIZE,
- .type = MT_DEVICE,
- },
- {
- .virtual = (u32)STMP3XXX_OCRAM_BASE,
- .pfn = __phys_to_pfn(STMP3XXX_OCRAM_PHBASE),
- .length = STMP3XXX_OCRAM_SIZE,
- .type = MT_DEVICE,
- },
-};
-
-
-static u64 common_dmamask = DMA_BIT_MASK(32);
-
-/*
- * devices that are present only on stmp378x, not on all 3xxx boards:
- * PxP
- * I2C
- */
-static struct resource pxp_resource[] = {
- {
- .flags = IORESOURCE_MEM,
- .start = REGS_PXP_PHYS,
- .end = REGS_PXP_PHYS + REGS_PXP_SIZE,
- }, {
- .flags = IORESOURCE_IRQ,
- .start = IRQ_PXP,
- .end = IRQ_PXP,
- },
-};
-
-struct platform_device stmp378x_pxp = {
- .name = "stmp3xxx-pxp",
- .id = -1,
- .dev = {
- .dma_mask = &common_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- },
- .num_resources = ARRAY_SIZE(pxp_resource),
- .resource = pxp_resource,
-};
-
-static struct resource i2c_resources[] = {
- {
- .flags = IORESOURCE_IRQ,
- .start = IRQ_I2C_ERROR,
- .end = IRQ_I2C_ERROR,
- }, {
- .flags = IORESOURCE_MEM,
- .start = REGS_I2C_PHYS,
- .end = REGS_I2C_PHYS + REGS_I2C_SIZE,
- }, {
- .flags = IORESOURCE_DMA,
- .start = STMP3XXX_DMA(3, STMP3XXX_BUS_APBX),
- .end = STMP3XXX_DMA(3, STMP3XXX_BUS_APBX),
- },
-};
-
-struct platform_device stmp378x_i2c = {
- .name = "i2c_stmp3xxx",
- .id = 0,
- .dev = {
- .dma_mask = &common_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- },
- .resource = i2c_resources,
- .num_resources = ARRAY_SIZE(i2c_resources),
-};
-
-void __init stmp378x_map_io(void)
-{
- iotable_init(stmp378x_io_desc, ARRAY_SIZE(stmp378x_io_desc));
-}