renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-18 18:23:53 +08:00
Code

ARM: OMAP: Remove cpu_is_omap usage from plat-omap/dma.c

Browse Source 
This code will be eventually in drivers, and for the
code in the drivers we don't want to have any cpu_is_omap
usage. Those macros should be private to arch/arm/mach-omap1
and arch/arm/mach-omap2.

To fix this, let's move the define for dma_omap2plus()
to dma-omap.h, and use the existing dma_attr passed in
the platform_data as the revision registers are what they
are.

Note that we can now also remove the relative includes
introduced by the recent clean-up patches.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2012-10-30 11:03:22 -07:00
parent 32dee01e67
commit 8280960181
5 changed files with 73 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mach-omap1/dma.c
View File

@ -321,6 +321,9 @@ static int __init omap1_system_dma_init(void)
d->dev_caps = ENABLE_1510_MODE;
enable_1510_mode = d->dev_caps & ENABLE_1510_MODE;
if (cpu_is_omap16xx())
d->dev_caps = ENABLE_16XX_MODE;
d->dev_caps |= SRC_PORT;
d->dev_caps |= DST_PORT;
d->dev_caps |= SRC_INDEX;

3
arch/arm/mach-omap2/dma.c
View File

@ -276,6 +276,9 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
return -ENOMEM;
}
if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
d->dev_caps |= HS_CHANNELS_RESERVED;
/* Check the capabilities register for descriptor loading feature */
if (dma_read(CAPS_0, 0) & DMA_HAS_DESCRIPTOR_CAPS)
dma_common_ch_end = CCDN;

108
arch/arm/plat-omap/dma.c
View File

@ -38,9 +38,6 @@
#include <plat-omap/dma-omap.h>
#include "../mach-omap1/soc.h"
#include "../mach-omap2/soc.h"
/*
* MAX_LOGICAL_DMA_CH_COUNT: the maximum number of logical DMA
* channels that an instance of the SDMA IP block can support. Used
@ -182,7 +179,7 @@ void omap_set_dma_priority(int lch, int dst_port, int priority)
unsigned long reg;
u32 l;
if (cpu_class_is_omap1()) {
if (dma_omap1()) {
switch (dst_port) {
case OMAP_DMA_PORT_OCP_T1: /* FFFECC00 */
reg = OMAP_TC_OCPT1_PRIOR;
@ -234,7 +231,7 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
l |= data_type;
p->dma_write(l, CSDP, lch);
if (cpu_class_is_omap1()) {
if (dma_omap1()) {
u16 ccr;
ccr = p->dma_read(CCR, lch);
@ -250,7 +247,7 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
p->dma_write(ccr, CCR2, lch);
}
if (cpu_class_is_omap2() && dma_trigger) {
if (dma_omap2plus() && dma_trigger) {
u32 val;
val = p->dma_read(CCR, lch);
@ -290,7 +287,7 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
{
BUG_ON(omap_dma_in_1510_mode());
if (cpu_class_is_omap1()) {
if (dma_omap1()) {
u16 w;
w = p->dma_read(CCR2, lch);
@ -320,7 +317,7 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
p->dma_write(w, LCH_CTRL, lch);
}
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
u32 val;
val = p->dma_read(CCR, lch);
@ -348,7 +345,7 @@ EXPORT_SYMBOL(omap_set_dma_color_mode);
void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode)
{
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
u32 csdp;
csdp = p->dma_read(CSDP, lch);
@ -361,7 +358,7 @@ EXPORT_SYMBOL(omap_set_dma_write_mode);
void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode)
{
if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
if (dma_omap1() && !dma_omap15xx()) {
u32 l;
l = p->dma_read(LCH_CTRL, lch);
@ -379,7 +376,7 @@ void omap_set_dma_src_params(int lch, int src_port, int src_amode,
{
u32 l;
if (cpu_class_is_omap1()) {
if (dma_omap1()) {
u16 w;
w = p->dma_read(CSDP, lch);
@ -421,7 +418,7 @@ EXPORT_SYMBOL(omap_set_dma_params);
void omap_set_dma_src_index(int lch, int eidx, int fidx)
{
if (cpu_class_is_omap2())
if (dma_omap2plus())
return;
p->dma_write(eidx, CSEI, lch);
@ -453,13 +450,13 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
case OMAP_DMA_DATA_BURST_DIS:
break;
case OMAP_DMA_DATA_BURST_4:
if (cpu_class_is_omap2())
if (dma_omap2plus())
burst = 0x1;
else
burst = 0x2;
break;
case OMAP_DMA_DATA_BURST_8:
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
burst = 0x2;
break;
}
@ -469,7 +466,7 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
* fall through
*/
case OMAP_DMA_DATA_BURST_16:
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
burst = 0x3;
break;
}
@ -493,7 +490,7 @@ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
{
u32 l;
if (cpu_class_is_omap1()) {
if (dma_omap1()) {
l = p->dma_read(CSDP, lch);
l &= ~(0x1f << 9);
l |= dest_port << 9;
@ -514,7 +511,7 @@ EXPORT_SYMBOL(omap_set_dma_dest_params);
void omap_set_dma_dest_index(int lch, int eidx, int fidx)
{
if (cpu_class_is_omap2())
if (dma_omap2plus())
return;
p->dma_write(eidx, CDEI, lch);
@ -546,19 +543,19 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
case OMAP_DMA_DATA_BURST_DIS:
break;
case OMAP_DMA_DATA_BURST_4:
if (cpu_class_is_omap2())
if (dma_omap2plus())
burst = 0x1;
else
burst = 0x2;
break;
case OMAP_DMA_DATA_BURST_8:
if (cpu_class_is_omap2())
if (dma_omap2plus())
burst = 0x2;
else
burst = 0x3;
break;
case OMAP_DMA_DATA_BURST_16:
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
burst = 0x3;
break;
}
@ -579,7 +576,7 @@ EXPORT_SYMBOL(omap_set_dma_dest_burst_mode);
static inline void omap_enable_channel_irq(int lch)
{
/* Clear CSR */
if (cpu_class_is_omap1())
if (dma_omap1())
p->dma_read(CSR, lch);
else
p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch);
@ -593,7 +590,7 @@ static inline void omap_disable_channel_irq(int lch)
/* disable channel interrupts */
p->dma_write(0, CICR, lch);
/* Clear CSR */
if (cpu_class_is_omap1())
if (dma_omap1())
p->dma_read(CSR, lch);
else
p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch);
@ -617,7 +614,7 @@ static inline void enable_lnk(int lch)
l = p->dma_read(CLNK_CTRL, lch);
if (cpu_class_is_omap1())
if (dma_omap1())
l &= ~(1 << 14);
/* Set the ENABLE_LNK bits */
@ -625,7 +622,7 @@ static inline void enable_lnk(int lch)
l = dma_chan[lch].next_lch | (1 << 15);
#ifndef CONFIG_ARCH_OMAP1
if (cpu_class_is_omap2())
if (dma_omap2plus())
if (dma_chan[lch].next_linked_ch != -1)
l = dma_chan[lch].next_linked_ch | (1 << 15);
#endif
@ -642,12 +639,12 @@ static inline void disable_lnk(int lch)
/* Disable interrupts */
omap_disable_channel_irq(lch);
if (cpu_class_is_omap1()) {
if (dma_omap1()) {
/* Set the STOP_LNK bit */
l |= 1 << 14;
}
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
/* Clear the ENABLE_LNK bit */
l &= ~(1 << 15);
}
@ -661,7 +658,7 @@ static inline void omap2_enable_irq_lch(int lch)
u32 val;
unsigned long flags;
if (!cpu_class_is_omap2())
if (dma_omap1())
return;
spin_lock_irqsave(&dma_chan_lock, flags);
@ -679,7 +676,7 @@ static inline void omap2_disable_irq_lch(int lch)
u32 val;
unsigned long flags;
if (!cpu_class_is_omap2())
if (dma_omap1())
return;
spin_lock_irqsave(&dma_chan_lock, flags);
@ -718,7 +715,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
if (p->clear_lch_regs)
p->clear_lch_regs(free_ch);
if (cpu_class_is_omap2())
if (dma_omap2plus())
omap_clear_dma(free_ch);
spin_unlock_irqrestore(&dma_chan_lock, flags);
@ -729,7 +726,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
chan->flags = 0;
#ifndef CONFIG_ARCH_OMAP1
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
chan->chain_id = -1;
chan->next_linked_ch = -1;
}
@ -737,13 +734,13 @@ int omap_request_dma(int dev_id, const char *dev_name,
chan->enabled_irqs = OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ;
if (cpu_class_is_omap1())
if (dma_omap1())
chan->enabled_irqs |= OMAP1_DMA_TOUT_IRQ;
else if (cpu_class_is_omap2())
else if (dma_omap2plus())
chan->enabled_irqs |= OMAP2_DMA_MISALIGNED_ERR_IRQ |
OMAP2_DMA_TRANS_ERR_IRQ;
if (cpu_is_omap16xx()) {
if (dma_omap16xx()) {
/* If the sync device is set, configure it dynamically. */
if (dev_id != 0) {
set_gdma_dev(free_ch + 1, dev_id);
@ -754,11 +751,11 @@ int omap_request_dma(int dev_id, const char *dev_name,
* id.
*/
p->dma_write(dev_id | (1 << 10), CCR, free_ch);
} else if (cpu_is_omap7xx() || cpu_is_omap15xx()) {
} else if (dma_omap1()) {
p->dma_write(dev_id, CCR, free_ch);
}
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
omap_enable_channel_irq(free_ch);
omap2_enable_irq_lch(free_ch);
}
@ -780,7 +777,7 @@ void omap_free_dma(int lch)
}
/* Disable interrupt for logical channel */
if (cpu_class_is_omap2())
if (dma_omap2plus())
omap2_disable_irq_lch(lch);
/* Disable all DMA interrupts for the channel. */
@ -790,7 +787,7 @@ void omap_free_dma(int lch)
p->dma_write(0, CCR, lch);
/* Clear registers */
if (cpu_class_is_omap2())
if (dma_omap2plus())
omap_clear_dma(lch);
spin_lock_irqsave(&dma_chan_lock, flags);
@ -816,7 +813,7 @@ omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams)
{
u32 reg;
if (!cpu_class_is_omap2()) {
if (dma_omap1()) {
printk(KERN_ERR "FIXME: no %s on 15xx/16xx\n", __func__);
return;
}
@ -855,7 +852,7 @@ omap_dma_set_prio_lch(int lch, unsigned char read_prio,
}
l = p->dma_read(CCR, lch);
l &= ~((1 << 6) | (1 << 26));
if (cpu_class_is_omap2() && !cpu_is_omap242x())
if (d->dev_caps & IS_RW_PRIORITY)
l |= ((read_prio & 0x1) << 6) | ((write_prio & 0x1) << 26);
else
l |= ((read_prio & 0x1) << 6);
@ -888,7 +885,7 @@ void omap_start_dma(int lch)
* The CPC/CDAC register needs to be initialized to zero
* before starting dma transfer.
*/
if (cpu_is_omap15xx())
if (dma_omap15xx())
p->dma_write(0, CPC, lch);
else
p->dma_write(0, CDAC, lch);
@ -1051,7 +1048,7 @@ dma_addr_t omap_get_dma_src_pos(int lch)
{
dma_addr_t offset = 0;
if (cpu_is_omap15xx())
if (dma_omap15xx())
offset = p->dma_read(CPC, lch);
else
offset = p->dma_read(CSAC, lch);
@ -1059,7 +1056,7 @@ dma_addr_t omap_get_dma_src_pos(int lch)
if (IS_DMA_ERRATA(DMA_ERRATA_3_3) && offset == 0)
offset = p->dma_read(CSAC, lch);
if (!cpu_is_omap15xx()) {
if (!dma_omap15xx()) {
/*
* CDAC == 0 indicates that the DMA transfer on the channel has
* not been started (no data has been transferred so far).
@ -1071,7 +1068,7 @@ dma_addr_t omap_get_dma_src_pos(int lch)
offset = p->dma_read(CSSA, lch);
}
if (cpu_class_is_omap1())
if (dma_omap1())
offset |= (p->dma_read(CSSA, lch) & 0xFFFF0000);
return offset;
@ -1090,7 +1087,7 @@ dma_addr_t omap_get_dma_dst_pos(int lch)
{
dma_addr_t offset = 0;
if (cpu_is_omap15xx())
if (dma_omap15xx())
offset = p->dma_read(CPC, lch);
else
offset = p->dma_read(CDAC, lch);
@ -1099,7 +1096,7 @@ dma_addr_t omap_get_dma_dst_pos(int lch)
* omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is
* read before the DMA controller finished disabling the channel.
*/
if (!cpu_is_omap15xx() && offset == 0) {
if (!dma_omap15xx() && offset == 0) {
offset = p->dma_read(CDAC, lch);
/*
* CDAC == 0 indicates that the DMA transfer on the channel has
@ -1110,7 +1107,7 @@ dma_addr_t omap_get_dma_dst_pos(int lch)
offset = p->dma_read(CDSA, lch);
}
if (cpu_class_is_omap1())
if (dma_omap1())
offset |= (p->dma_read(CDSA, lch) & 0xFFFF0000);
return offset;
@ -1127,7 +1124,7 @@ int omap_dma_running(void)
{
int lch;
if (cpu_class_is_omap1())
if (dma_omap1())
if (omap_lcd_dma_running())
return 1;
@ -2030,7 +2027,7 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
dma_chan = d->chan;
enable_1510_mode = d->dev_caps & ENABLE_1510_MODE;
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
dma_linked_lch = kzalloc(sizeof(struct dma_link_info) *
dma_lch_count, GFP_KERNEL);
if (!dma_linked_lch) {
@ -2042,7 +2039,7 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
spin_lock_init(&dma_chan_lock);
for (ch = 0; ch < dma_chan_count; ch++) {
omap_clear_dma(ch);
if (cpu_class_is_omap2())
if (dma_omap2plus())
omap2_disable_irq_lch(ch);
dma_chan[ch].dev_id = -1;
@ -2051,7 +2048,7 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
if (ch >= 6 && enable_1510_mode)
continue;
if (cpu_class_is_omap1()) {
if (dma_omap1()) {
/*
* request_irq() doesn't like dev_id (ie. ch) being
* zero, so we have to kludge around this.
@ -2076,11 +2073,11 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
}
}
if (cpu_class_is_omap2() && !cpu_is_omap242x())
if (d->dev_caps & IS_RW_PRIORITY)
omap_dma_set_global_params(DMA_DEFAULT_ARB_RATE,
DMA_DEFAULT_FIFO_DEPTH, 0);
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
strcpy(irq_name, "0");
dma_irq = platform_get_irq_byname(pdev, irq_name);
if (dma_irq < 0) {
@ -2095,9 +2092,8 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
}
}
/* reserve dma channels 0 and 1 in high security devices */
if (cpu_is_omap34xx() &&
(omap_type() != OMAP2_DEVICE_TYPE_GP)) {
/* reserve dma channels 0 and 1 in high security devices on 34xx */
if (d->dev_caps & HS_CHANNELS_RESERVED) {
pr_info("Reserving DMA channels 0 and 1 for HS ROM code\n");
dma_chan[0].dev_id = 0;
dma_chan[1].dev_id = 1;
@ -2124,7 +2120,7 @@ static int __devexit omap_system_dma_remove(struct platform_device *pdev)
{
int dma_irq;
if (cpu_class_is_omap2()) {
if (dma_omap2plus()) {
char irq_name[4];
strcpy(irq_name, "0");
dma_irq = platform_get_irq_byname(pdev, irq_name);

19
arch/arm/plat-omap/include/plat-omap/dma-omap.h
View File

@ -130,10 +130,12 @@
#define SRC_PORT BIT(0x7)
#define DST_PORT BIT(0x8)
#define SRC_INDEX BIT(0x9)
#define DST_INDEX BIT(0xA)
#define IS_BURST_ONLY4 BIT(0xB)
#define CLEAR_CSR_ON_READ BIT(0xC)
#define IS_WORD_16 BIT(0xD)
#define DST_INDEX BIT(0xa)
#define IS_BURST_ONLY4 BIT(0xb)
#define CLEAR_CSR_ON_READ BIT(0xc)
#define IS_WORD_16 BIT(0xd)
#define ENABLE_16XX_MODE BIT(0xe)
#define HS_CHANNELS_RESERVED BIT(0xf)
/* Defines for DMA Capabilities */
#define DMA_HAS_TRANSPARENT_CAPS (0x1 << 18)
@ -270,6 +272,15 @@ struct omap_system_dma_plat_info {
u32 (*dma_read)(int reg, int lch);
};
#ifdef CONFIG_ARCH_OMAP2PLUS
#define dma_omap2plus() 1
#else
#define dma_omap2plus() 0
#endif
#define dma_omap1() (!dma_omap2plus())
#define dma_omap15xx() ((dma_omap1() && (d->dev_caps & ENABLE_1510_MODE)))
#define dma_omap16xx() ((dma_omap1() && (d->dev_caps & ENABLE_16XX_MODE)))
extern void __init omap_init_consistent_dma_size(void);
extern void omap_set_dma_priority(int lch, int dst_port, int priority);
extern int omap_request_dma(int dev_id, const char *dev_name,

6
drivers/dma/omap-dma.c
View File

@ -21,12 +21,6 @@
#include <plat-omap/dma-omap.h>
#ifdef CONFIG_ARCH_OMAP2PLUS
#define dma_omap2plus() 1
#else
#define dma_omap2plus() 0
#endif
struct omap_dmadev {
struct dma_device ddev;
spinlock_t lock;