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authorIngo Molnar <mingo@elte.hu>2009-09-02 02:17:56 -0400
committerIngo Molnar <mingo@elte.hu>2009-09-02 02:17:56 -0400
commit936e894a976dd3b0f07f1f6f43c17b77b7e6146d (patch)
tree5ed5c1f6735dcd26550594df23c8f7fe2aa21a15 /drivers/dma/fsldma.c
parent69575d388603365f2afbf4166df93152df59b165 (diff)
parent326ba5010a5429a5a528b268b36a5900d4ab0eba (diff)
Merge commit 'v2.6.31-rc8' into x86/txt
Conflicts: arch/x86/kernel/reboot.c security/Kconfig Merge reason: resolve the conflicts, bump up from rc3 to rc8. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/dma/fsldma.c')
-rw-r--r--drivers/dma/fsldma.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index f18d1bde0439..ef87a8984145 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -12,6 +12,11 @@
12 * also fit for MPC8560, MPC8555, MPC8548, MPC8641, and etc. 12 * also fit for MPC8560, MPC8555, MPC8548, MPC8641, and etc.
13 * The support for MPC8349 DMA contorller is also added. 13 * The support for MPC8349 DMA contorller is also added.
14 * 14 *
15 * This driver instructs the DMA controller to issue the PCI Read Multiple
16 * command for PCI read operations, instead of using the default PCI Read Line
17 * command. Please be aware that this setting may result in read pre-fetching
18 * on some platforms.
19 *
15 * This is free software; you can redistribute it and/or modify 20 * This is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by 21 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or 22 * the Free Software Foundation; either version 2 of the License, or
@@ -49,9 +54,10 @@ static void dma_init(struct fsl_dma_chan *fsl_chan)
49 case FSL_DMA_IP_83XX: 54 case FSL_DMA_IP_83XX:
50 /* Set the channel to below modes: 55 /* Set the channel to below modes:
51 * EOTIE - End-of-transfer interrupt enable 56 * EOTIE - End-of-transfer interrupt enable
57 * PRC_RM - PCI read multiple
52 */ 58 */
53 DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EOTIE, 59 DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EOTIE
54 32); 60 | FSL_DMA_MR_PRC_RM, 32);
55 break; 61 break;
56 } 62 }
57 63
@@ -136,15 +142,16 @@ static int dma_is_idle(struct fsl_dma_chan *fsl_chan)
136 142
137static void dma_start(struct fsl_dma_chan *fsl_chan) 143static void dma_start(struct fsl_dma_chan *fsl_chan)
138{ 144{
139 u32 mr_set = 0;; 145 u32 mr_set = 0;
140 146
141 if (fsl_chan->feature & FSL_DMA_CHAN_PAUSE_EXT) { 147 if (fsl_chan->feature & FSL_DMA_CHAN_PAUSE_EXT) {
142 DMA_OUT(fsl_chan, &fsl_chan->reg_base->bcr, 0, 32); 148 DMA_OUT(fsl_chan, &fsl_chan->reg_base->bcr, 0, 32);
143 mr_set |= FSL_DMA_MR_EMP_EN; 149 mr_set |= FSL_DMA_MR_EMP_EN;
144 } else 150 } else if ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX) {
145 DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, 151 DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr,
146 DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) 152 DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32)
147 & ~FSL_DMA_MR_EMP_EN, 32); 153 & ~FSL_DMA_MR_EMP_EN, 32);
154 }
148 155
149 if (fsl_chan->feature & FSL_DMA_CHAN_START_EXT) 156 if (fsl_chan->feature & FSL_DMA_CHAN_START_EXT)
150 mr_set |= FSL_DMA_MR_EMS_EN; 157 mr_set |= FSL_DMA_MR_EMS_EN;
@@ -871,9 +878,9 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev,
871 878
872 switch (new_fsl_chan->feature & FSL_DMA_IP_MASK) { 879 switch (new_fsl_chan->feature & FSL_DMA_IP_MASK) {
873 case FSL_DMA_IP_85XX: 880 case FSL_DMA_IP_85XX:
874 new_fsl_chan->toggle_ext_start = fsl_chan_toggle_ext_start;
875 new_fsl_chan->toggle_ext_pause = fsl_chan_toggle_ext_pause; 881 new_fsl_chan->toggle_ext_pause = fsl_chan_toggle_ext_pause;
876 case FSL_DMA_IP_83XX: 882 case FSL_DMA_IP_83XX:
883 new_fsl_chan->toggle_ext_start = fsl_chan_toggle_ext_start;
877 new_fsl_chan->set_src_loop_size = fsl_chan_set_src_loop_size; 884 new_fsl_chan->set_src_loop_size = fsl_chan_set_src_loop_size;
878 new_fsl_chan->set_dest_loop_size = fsl_chan_set_dest_loop_size; 885 new_fsl_chan->set_dest_loop_size = fsl_chan_set_dest_loop_size;
879 } 886 }