From: Arnd Bergmann arnd@arndb.de
No part of plat-omap/dma.c is called on omap2 any more, so anything omap2 specific in here can simply be removed.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- arch/arm/plat-omap/dma.c | 217 ++++++++++----------------------------- 1 file changed, 55 insertions(+), 162 deletions(-)
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index b7757864d0aa..eb14528f133c 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -34,11 +34,9 @@
#include <linux/omap-dma.h>
-#ifdef CONFIG_ARCH_OMAP1 #include <mach/hardware.h> #include <linux/soc/ti/omap1-io.h> #include <linux/soc/ti/omap1-soc.h> -#endif
/* * MAX_LOGICAL_DMA_CH_COUNT: the maximum number of logical DMA @@ -51,16 +49,7 @@
#undef DEBUG
-#ifndef CONFIG_ARCH_OMAP1 -enum { DMA_CH_ALLOC_DONE, DMA_CH_PARAMS_SET_DONE, DMA_CH_STARTED, - DMA_CH_QUEUED, DMA_CH_NOTSTARTED, DMA_CH_PAUSED, DMA_CH_LINK_ENABLED -}; - -enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED }; -#endif - #define OMAP_DMA_ACTIVE 0x01 -#define OMAP2_DMA_CSR_CLEAR_MASK 0xffffffff
#define OMAP_FUNC_MUX_ARM_BASE (0xfffe1000 + 0xec)
@@ -94,13 +83,9 @@ static inline void omap_disable_channel_irq(int lch) /* disable channel interrupts */ p->dma_write(0, CICR, lch); /* Clear CSR */ - if (dma_omap1()) - p->dma_read(CSR, lch); - else - p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); + p->dma_read(CSR, lch); }
-#ifdef CONFIG_ARCH_OMAP1 static inline void set_gdma_dev(int req, int dev) { u32 reg = OMAP_FUNC_MUX_ARM_BASE + ((req - 1) / 5) * 4; @@ -112,11 +97,6 @@ static inline void set_gdma_dev(int req, int dev) l |= (dev - 1) << shift; omap_writel(l, reg); } -#else -#define set_gdma_dev(req, dev) do {} while (0) -#define omap_readl(reg) 0 -#define omap_writel(val, reg) do {} while (0) -#endif
#ifdef CONFIG_ARCH_OMAP1 void omap_set_dma_priority(int lch, int dst_port, int priority) @@ -181,59 +161,24 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, int dma_trigger, int src_or_dst_synch) { u32 l; + u16 ccr;
l = p->dma_read(CSDP, lch); l &= ~0x03; l |= data_type; p->dma_write(l, CSDP, lch);
- if (dma_omap1()) { - u16 ccr; - - ccr = p->dma_read(CCR, lch); - ccr &= ~(1 << 5); - if (sync_mode == OMAP_DMA_SYNC_FRAME) - ccr |= 1 << 5; - p->dma_write(ccr, CCR, lch); - - ccr = p->dma_read(CCR2, lch); - ccr &= ~(1 << 2); - if (sync_mode == OMAP_DMA_SYNC_BLOCK) - ccr |= 1 << 2; - p->dma_write(ccr, CCR2, lch); - } - - if (dma_omap2plus() && dma_trigger) { - u32 val; - - val = p->dma_read(CCR, lch); - - /* DMA_SYNCHRO_CONTROL_UPPER depends on the channel number */ - val &= ~((1 << 23) | (3 << 19) | 0x1f); - val |= (dma_trigger & ~0x1f) << 14; - val |= dma_trigger & 0x1f; - - if (sync_mode & OMAP_DMA_SYNC_FRAME) - val |= 1 << 5; - else - val &= ~(1 << 5); - - if (sync_mode & OMAP_DMA_SYNC_BLOCK) - val |= 1 << 18; - else - val &= ~(1 << 18); - - if (src_or_dst_synch == OMAP_DMA_DST_SYNC_PREFETCH) { - val &= ~(1 << 24); /* dest synch */ - val |= (1 << 23); /* Prefetch */ - } else if (src_or_dst_synch) { - val |= 1 << 24; /* source synch */ - } else { - val &= ~(1 << 24); /* dest synch */ - } - p->dma_write(val, CCR, lch); - } + ccr = p->dma_read(CCR, lch); + ccr &= ~(1 << 5); + if (sync_mode == OMAP_DMA_SYNC_FRAME) + ccr |= 1 << 5; + p->dma_write(ccr, CCR, lch);
+ ccr = p->dma_read(CCR2, lch); + ccr &= ~(1 << 2); + if (sync_mode == OMAP_DMA_SYNC_BLOCK) + ccr |= 1 << 2; + p->dma_write(ccr, CCR2, lch); p->dma_write(elem_count, CEN, lch); p->dma_write(frame_count, CFN, lch); } @@ -241,7 +186,7 @@ EXPORT_SYMBOL(omap_set_dma_transfer_params);
void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode) { - if (dma_omap1() && !dma_omap15xx()) { + if (!dma_omap15xx()) { u32 l;
l = p->dma_read(LCH_CTRL, lch); @@ -258,15 +203,12 @@ void omap_set_dma_src_params(int lch, int src_port, int src_amode, int src_ei, int src_fi) { u32 l; + u16 w;
- if (dma_omap1()) { - u16 w; - - w = p->dma_read(CSDP, lch); - w &= ~(0x1f << 2); - w |= src_port << 2; - p->dma_write(w, CSDP, lch); - } + w = p->dma_read(CSDP, lch); + w &= ~(0x1f << 2); + w |= src_port << 2; + p->dma_write(w, CSDP, lch);
l = p->dma_read(CCR, lch); l &= ~(0x03 << 12); @@ -304,26 +246,15 @@ 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 (dma_omap2plus()) - burst = 0x1; - else - burst = 0x2; + burst = 0x2; break; case OMAP_DMA_DATA_BURST_8: - if (dma_omap2plus()) { - burst = 0x2; - break; - } /* * not supported by current hardware on OMAP1 * w |= (0x03 << 7); */ fallthrough; case OMAP_DMA_DATA_BURST_16: - if (dma_omap2plus()) { - burst = 0x3; - break; - } /* OMAP1 don't support burst 16 */ fallthrough; default: @@ -342,12 +273,10 @@ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode, { u32 l;
- if (dma_omap1()) { - l = p->dma_read(CSDP, lch); - l &= ~(0x1f << 9); - l |= dest_port << 9; - p->dma_write(l, CSDP, lch); - } + l = p->dma_read(CSDP, lch); + l &= ~(0x1f << 9); + l |= dest_port << 9; + p->dma_write(l, CSDP, lch);
l = p->dma_read(CCR, lch); l &= ~(0x03 << 14); @@ -385,22 +314,12 @@ 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 (dma_omap2plus()) - burst = 0x1; - else - burst = 0x2; + burst = 0x2; break; case OMAP_DMA_DATA_BURST_8: - if (dma_omap2plus()) - burst = 0x2; - else - burst = 0x3; + burst = 0x3; break; case OMAP_DMA_DATA_BURST_16: - if (dma_omap2plus()) { - burst = 0x3; - break; - } /* OMAP1 don't support burst 16 */ fallthrough; default: @@ -416,10 +335,7 @@ EXPORT_SYMBOL(omap_set_dma_dest_burst_mode); static inline void omap_enable_channel_irq(int lch) { /* Clear CSR */ - if (dma_omap1()) - p->dma_read(CSR, lch); - else - p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); + p->dma_read(CSR, lch);
/* Enable some nice interrupts. */ p->dma_write(dma_chan[lch].enabled_irqs, CICR, lch); @@ -437,8 +353,7 @@ static inline void enable_lnk(int lch)
l = p->dma_read(CLNK_CTRL, lch);
- if (dma_omap1()) - l &= ~(1 << 14); + l &= ~(1 << 14);
/* Set the ENABLE_LNK bits */ if (dma_chan[lch].next_lch != -1) @@ -456,15 +371,8 @@ static inline void disable_lnk(int lch) /* Disable interrupts */ omap_disable_channel_irq(lch);
- if (dma_omap1()) { - /* Set the STOP_LNK bit */ - l |= 1 << 14; - } - - if (dma_omap2plus()) { - /* Clear the ENABLE_LNK bit */ - l &= ~(1 << 15); - } + /* Set the STOP_LNK bit */ + l |= 1 << 14;
p->dma_write(l, CLNK_CTRL, lch); dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE; @@ -508,8 +416,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
chan->enabled_irqs = OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ;
- if (dma_omap1()) - chan->enabled_irqs |= OMAP1_DMA_TOUT_IRQ; + chan->enabled_irqs |= OMAP1_DMA_TOUT_IRQ;
if (dma_omap16xx()) { /* If the sync device is set, configure it dynamically. */ @@ -522,7 +429,7 @@ int omap_request_dma(int dev_id, const char *dev_name, * id. */ p->dma_write(dev_id | (1 << 10), CCR, free_ch); - } else if (dma_omap1()) { + } else { p->dma_write(dev_id, CCR, free_ch); }
@@ -739,8 +646,7 @@ dma_addr_t omap_get_dma_src_pos(int lch) offset = p->dma_read(CSSA, lch); }
- if (dma_omap1()) - offset |= (p->dma_read(CSSA, lch) & 0xFFFF0000); + offset |= (p->dma_read(CSSA, lch) & 0xFFFF0000);
return offset; } @@ -778,8 +684,7 @@ dma_addr_t omap_get_dma_dst_pos(int lch) offset = p->dma_read(CDSA, lch); }
- if (dma_omap1()) - offset |= (p->dma_read(CDSA, lch) & 0xFFFF0000); + offset |= (p->dma_read(CDSA, lch) & 0xFFFF0000);
return offset; } @@ -796,9 +701,8 @@ int omap_dma_running(void) { int lch;
- if (dma_omap1()) - if (omap_lcd_dma_running()) - return 1; + if (omap_lcd_dma_running()) + return 1;
for (lch = 0; lch < dma_chan_count; lch++) if (p->dma_read(CCR, lch) & OMAP_DMA_CCR_EN) @@ -809,8 +713,6 @@ int omap_dma_running(void)
/*----------------------------------------------------------------------------*/
-#ifdef CONFIG_ARCH_OMAP1 - static int omap1_dma_handle_ch(int ch) { u32 csr; @@ -863,10 +765,6 @@ static irqreturn_t omap1_dma_irq_handler(int irq, void *dev_id) return handled ? IRQ_HANDLED : IRQ_NONE; }
-#else -#define omap1_dma_irq_handler NULL -#endif - struct omap_system_dma_plat_info *omap_get_plat_info(void) { return p; @@ -912,29 +810,27 @@ static int omap_system_dma_probe(struct platform_device *pdev) if (ch >= 6 && enable_1510_mode) continue;
- if (dma_omap1()) { - /* - * request_irq() doesn't like dev_id (ie. ch) being - * zero, so we have to kludge around this. - */ - sprintf(&irq_name[0], "%d", ch); - dma_irq = platform_get_irq_byname(pdev, irq_name); - - if (dma_irq < 0) { - ret = dma_irq; - goto exit_dma_irq_fail; - } - - /* INT_DMA_LCD is handled in lcd_dma.c */ - if (dma_irq == INT_DMA_LCD) - continue; - - ret = request_irq(dma_irq, - omap1_dma_irq_handler, 0, "DMA", - (void *) (ch + 1)); - if (ret != 0) - goto exit_dma_irq_fail; + /* + * request_irq() doesn't like dev_id (ie. ch) being + * zero, so we have to kludge around this. + */ + sprintf(&irq_name[0], "%d", ch); + dma_irq = platform_get_irq_byname(pdev, irq_name); + + if (dma_irq < 0) { + ret = dma_irq; + goto exit_dma_irq_fail; } + + /* INT_DMA_LCD is handled in lcd_dma.c */ + if (dma_irq == INT_DMA_LCD) + continue; + + ret = request_irq(dma_irq, + omap1_dma_irq_handler, 0, "DMA", + (void *) (ch + 1)); + if (ret != 0) + goto exit_dma_irq_fail; }
/* reserve dma channels 0 and 1 in high security devices on 34xx */ @@ -954,9 +850,6 @@ static int omap_system_dma_remove(struct platform_device *pdev) { int dma_irq, irq_rel = 0;
- if (dma_omap2plus()) - return 0; - for ( ; irq_rel < dma_chan_count; irq_rel++) { dma_irq = platform_get_irq(pdev, irq_rel); free_irq(dma_irq, (void *)(irq_rel + 1));