OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity
acrn-kernel/arch/arm/mach-footbridge/dma.c

58 lines
1.1 KiB
C
Raw Normal View History

Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* linux/arch/arm/kernel/dma-ebsa285.c
*
* Copyright (C) 1998 Phil Blundell
*
* DMA functions specific to EBSA-285/CATS architectures
*
* Changelog:
* 09-Nov-1998 RMK Split out ISA DMA functions to dma-isa.c
* 17-Mar-1999 RMK Allow any EBSA285-like architecture to have
* ISA DMA controllers.
*/
#include <linux/init.h>
[ARM] Convert asm/io.h to linux/io.h Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-06 19:10:45 +08:00
#include <linux/io.h>
[ARM] netwinder: clean up GPIO naming Netwinder was using gpio_xxx names which could clash with the GPIO layer. Add a 'nw_' prefix to ensure that these remain separate. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-06 16:25:16 +08:00
#include <linux/spinlock.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/dma.h>
[ARM] Cleanup ARM includes arch/arm/kernel/entry-armv.S has contained a comment suggesting that asm/hardware.h and asm/arch/irqs.h should be moved into the asm/arch/entry-macro.S include. So move the includes to these two files as required. Add missing includes (asm/hardware.h, asm/io.h) to asm/arch/system.h includes which use those facilities, and remove asm/io.h from kernel/process.c. Remove other unnecessary includes from arch/arm/kernel, arch/arm/mm and arch/arm/mach-footbridge. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-04 01:39:34 +08:00
#include <asm/scatterlist.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/mach/dma.h>
#include <asm/hardware/dec21285.h>
#if 0
[ARM] dma: remove dmach_t typedef Remove a pointless integer typedef. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-08 23:58:50 +08:00
static int fb_dma_request(unsigned int chan, dma_t *dma)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
return -EINVAL;
}
[ARM] dma: remove dmach_t typedef Remove a pointless integer typedef. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-08 23:58:50 +08:00
static void fb_dma_enable(unsigned int chan, dma_t *dma)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
}
[ARM] dma: remove dmach_t typedef Remove a pointless integer typedef. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-08 23:58:50 +08:00
static void fb_dma_disable(unsigned int chan, dma_t *dma)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
}
static struct dma_ops fb_dma_ops = {
.type = "fb",
.request = fb_dma_request,
.enable = fb_dma_enable,
.disable = fb_dma_disable,
};
#endif
[ARM] dma: rejig DMA initialization Rather than having the central DMA multiplexer call the architecture specific DMA initialization function, have each architecture DMA initialization function use core_initcall(), and register each DMA channel separately with the multiplexer. This removes the array of dma structures in the central multiplexer, replacing it with an array of pointers instead; this is more flexible since it allows the drivers to wrap the DMA structure (eventually allowing us to transition non-ISA DMA drivers away.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-09 00:33:30 +08:00
static int __init fb_dma_init(void)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
#if 0
dma[_DC21285_DMA(0)].d_ops = &fb_dma_ops;
dma[_DC21285_DMA(1)].d_ops = &fb_dma_ops;
#endif
#ifdef CONFIG_ISA_DMA
if (footbridge_cfn_mode())
[ARM] dma: rejig DMA initialization Rather than having the central DMA multiplexer call the architecture specific DMA initialization function, have each architecture DMA initialization function use core_initcall(), and register each DMA channel separately with the multiplexer. This removes the array of dma structures in the central multiplexer, replacing it with an array of pointers instead; this is more flexible since it allows the drivers to wrap the DMA structure (eventually allowing us to transition non-ISA DMA drivers away.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-09 00:33:30 +08:00
isa_init_dma();
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#endif
[ARM] dma: rejig DMA initialization Rather than having the central DMA multiplexer call the architecture specific DMA initialization function, have each architecture DMA initialization function use core_initcall(), and register each DMA channel separately with the multiplexer. This removes the array of dma structures in the central multiplexer, replacing it with an array of pointers instead; this is more flexible since it allows the drivers to wrap the DMA structure (eventually allowing us to transition non-ISA DMA drivers away.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-09 00:33:30 +08:00
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[ARM] dma: rejig DMA initialization Rather than having the central DMA multiplexer call the architecture specific DMA initialization function, have each architecture DMA initialization function use core_initcall(), and register each DMA channel separately with the multiplexer. This removes the array of dma structures in the central multiplexer, replacing it with an array of pointers instead; this is more flexible since it allows the drivers to wrap the DMA structure (eventually allowing us to transition non-ISA DMA drivers away.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-09 00:33:30 +08:00
core_initcall(fb_dma_init);