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Diffstat (limited to 'arch/arm/mach-stmp37xx/stmp37xx.c')
-rw-r--r--arch/arm/mach-stmp37xx/stmp37xx.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/arch/arm/mach-stmp37xx/stmp37xx.c b/arch/arm/mach-stmp37xx/stmp37xx.c
deleted file mode 100644
index a9aed06ff376..000000000000
--- a/arch/arm/mach-stmp37xx/stmp37xx.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Freescale STMP37XX 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/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/irq.h>
-#include <linux/io.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/stmp3xxx.h>
-#include <mach/dma.h>
-
-#include <mach/platform.h>
-#include <mach/regs-icoll.h>
-#include <mach/regs-apbh.h>
-#include <mach/regs-apbx.h>
-#include "stmp37xx.h"
-
-/*
- * IRQ handling
- */
-static void stmp37xx_ack_irq(struct irq_data *d)
-{
- /* Disable IRQ */
- stmp3xxx_clearl(0x04 << ((d->irq % 4) * 8),
- REGS_ICOLL_BASE + HW_ICOLL_PRIORITYn + d->irq / 4 * 0x10);
-
- /* ACK current interrupt */
- __raw_writel(1, REGS_ICOLL_BASE + HW_ICOLL_LEVELACK);
-
- /* Barrier */
- (void)__raw_readl(REGS_ICOLL_BASE + HW_ICOLL_STAT);
-}
-
-static void stmp37xx_mask_irq(struct irq_data *d)
-{
- /* IRQ disable */
- stmp3xxx_clearl(0x04 << ((d->irq % 4) * 8),
- REGS_ICOLL_BASE + HW_ICOLL_PRIORITYn + d->irq / 4 * 0x10);
-}
-
-static void stmp37xx_unmask_irq(struct irq_data *d)
-{
- /* IRQ enable */
- stmp3xxx_setl(0x04 << ((d->irq % 4) * 8),
- REGS_ICOLL_BASE + HW_ICOLL_PRIORITYn + d->irq / 4 * 0x10);
-}
-
-static struct irq_chip stmp37xx_chip = {
- .irq_ack = stmp37xx_ack_irq,
- .irq_mask = stmp37xx_mask_irq,
- .irq_unmask = stmp37xx_unmask_irq,
-};
-
-void __init stmp37xx_init_irq(void)
-{
- stmp3xxx_init_irq(&stmp37xx_chip);
-}
-
-/*
- * DMA interrupt handling
- */
-void stmp3xxx_arch_dma_enable_interrupt(int channel)
-{
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- stmp3xxx_setl(1 << (8 + STMP3XXX_DMA_CHANNEL(channel)),
- REGS_APBH_BASE + HW_APBH_CTRL1);
- break;
-
- case STMP3XXX_BUS_APBX:
- stmp3xxx_setl(1 << (8 + STMP3XXX_DMA_CHANNEL(channel)),
- REGS_APBX_BASE + HW_APBX_CTRL1);
- break;
- }
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_enable_interrupt);
-
-void stmp3xxx_arch_dma_clear_interrupt(int channel)
-{
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- stmp3xxx_clearl(1 << STMP3XXX_DMA_CHANNEL(channel),
- REGS_APBH_BASE + HW_APBH_CTRL1);
- break;
-
- case STMP3XXX_BUS_APBX:
- stmp3xxx_clearl(1 << STMP3XXX_DMA_CHANNEL(channel),
- REGS_APBX_BASE + HW_APBX_CTRL1);
- break;
- }
-}
-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_APBH_BASE + HW_APBH_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);
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- /* Reset channel and wait for it to complete */
- stmp3xxx_setl(chbit << BP_APBH_CTRL0_RESET_CHANNEL,
- REGS_APBH_BASE + HW_APBH_CTRL0);
- while (__raw_readl(REGS_APBH_BASE + HW_APBH_CTRL0) &
- (chbit << BP_APBH_CTRL0_RESET_CHANNEL))
- cpu_relax();
- break;
-
- case STMP3XXX_BUS_APBX:
- stmp3xxx_setl(chbit << BP_APBX_CTRL0_RESET_CHANNEL,
- REGS_APBX_BASE + HW_APBX_CTRL0);
- while (__raw_readl(REGS_APBX_BASE + HW_APBX_CTRL0) &
- (chbit << BP_APBX_CTRL0_RESET_CHANNEL))
- cpu_relax();
- break;
- }
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_reset_channel);
-
-void stmp3xxx_arch_dma_freeze(int channel)
-{
- unsigned chbit = 1 << STMP3XXX_DMA_CHANNEL(channel);
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- stmp3xxx_setl(1 << chbit, REGS_APBH_BASE + HW_APBH_CTRL0);
- break;
- case STMP3XXX_BUS_APBX:
- stmp3xxx_setl(1 << chbit, REGS_APBH_BASE + HW_APBH_CTRL0);
- break;
- }
-}
-EXPORT_SYMBOL(stmp3xxx_arch_dma_freeze);
-
-void stmp3xxx_arch_dma_unfreeze(int channel)
-{
- unsigned chbit = 1 << STMP3XXX_DMA_CHANNEL(channel);
-
- switch (STMP3XXX_DMA_BUS(channel)) {
- case STMP3XXX_BUS_APBH:
- stmp3xxx_clearl(1 << chbit, REGS_APBH_BASE + HW_APBH_CTRL0);
- break;
- case STMP3XXX_BUS_APBX:
- stmp3xxx_clearl(1 << chbit, REGS_APBH_BASE + HW_APBH_CTRL0);
- 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 stmp37xx_io_desc[] __initdata = {
- {
- .virtual = (u32)STMP3XXX_REGS_BASE,
- .pfn = __phys_to_pfn(STMP3XXX_REGS_PHBASE),
- .length = SZ_1M,
- .type = MT_DEVICE
- },
- {
- .virtual = (u32)STMP3XXX_OCRAM_BASE,
- .pfn = __phys_to_pfn(STMP3XXX_OCRAM_PHBASE),
- .length = STMP3XXX_OCRAM_SIZE,
- .type = MT_DEVICE,
- },
-};
-
-void __init stmp37xx_map_io(void)
-{
- iotable_init(stmp37xx_io_desc, ARRAY_SIZE(stmp37xx_io_desc));
-}