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authorMike Frysinger <vapier@gentoo.org>2010-03-21 17:06:01 -0400
committerDavid S. Miller <davem@davemloft.net>2010-03-22 23:05:45 -0400
commit21afc27c9f9ae1f6370c47b323be7f3b75106569 (patch)
tree25b84a6fde1c2f00df5872bc7fcf57447c1c260a /drivers
parent91c030b4d6445ebe9fbddb86d584441f300df15c (diff)
can: bfin_can: switch to common Blackfin can header
The MMR bits are being moved to this header, so include it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/can/bfin_can.c97
1 files changed, 7 insertions, 90 deletions
diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c
index 866905fa4119..03489864376d 100644
--- a/drivers/net/can/bfin_can.c
+++ b/drivers/net/can/bfin_can.c
@@ -22,6 +22,7 @@
22#include <linux/can/dev.h> 22#include <linux/can/dev.h>
23#include <linux/can/error.h> 23#include <linux/can/error.h>
24 24
25#include <asm/bfin_can.h>
25#include <asm/portmux.h> 26#include <asm/portmux.h>
26 27
27#define DRV_NAME "bfin_can" 28#define DRV_NAME "bfin_can"
@@ -29,90 +30,6 @@
29#define TX_ECHO_SKB_MAX 1 30#define TX_ECHO_SKB_MAX 1
30 31
31/* 32/*
32 * transmit and receive channels
33 */
34#define TRANSMIT_CHL 24
35#define RECEIVE_STD_CHL 0
36#define RECEIVE_EXT_CHL 4
37#define RECEIVE_RTR_CHL 8
38#define RECEIVE_EXT_RTR_CHL 12
39#define MAX_CHL_NUMBER 32
40
41/*
42 * bfin can registers layout
43 */
44struct bfin_can_mask_regs {
45 u16 aml;
46 u16 dummy1;
47 u16 amh;
48 u16 dummy2;
49};
50
51struct bfin_can_channel_regs {
52 u16 data[8];
53 u16 dlc;
54 u16 dummy1;
55 u16 tsv;
56 u16 dummy2;
57 u16 id0;
58 u16 dummy3;
59 u16 id1;
60 u16 dummy4;
61};
62
63struct bfin_can_regs {
64 /*
65 * global control and status registers
66 */
67 u16 mc1; /* offset 0 */
68 u16 dummy1;
69 u16 md1; /* offset 4 */
70 u16 rsv1[13];
71 u16 mbtif1; /* offset 0x20 */
72 u16 dummy2;
73 u16 mbrif1; /* offset 0x24 */
74 u16 dummy3;
75 u16 mbim1; /* offset 0x28 */
76 u16 rsv2[11];
77 u16 mc2; /* offset 0x40 */
78 u16 dummy4;
79 u16 md2; /* offset 0x44 */
80 u16 dummy5;
81 u16 trs2; /* offset 0x48 */
82 u16 rsv3[11];
83 u16 mbtif2; /* offset 0x60 */
84 u16 dummy6;
85 u16 mbrif2; /* offset 0x64 */
86 u16 dummy7;
87 u16 mbim2; /* offset 0x68 */
88 u16 rsv4[11];
89 u16 clk; /* offset 0x80 */
90 u16 dummy8;
91 u16 timing; /* offset 0x84 */
92 u16 rsv5[3];
93 u16 status; /* offset 0x8c */
94 u16 dummy9;
95 u16 cec; /* offset 0x90 */
96 u16 dummy10;
97 u16 gis; /* offset 0x94 */
98 u16 dummy11;
99 u16 gim; /* offset 0x98 */
100 u16 rsv6[3];
101 u16 ctrl; /* offset 0xa0 */
102 u16 dummy12;
103 u16 intr; /* offset 0xa4 */
104 u16 rsv7[7];
105 u16 esr; /* offset 0xb4 */
106 u16 rsv8[37];
107
108 /*
109 * channel(mailbox) mask and message registers
110 */
111 struct bfin_can_mask_regs msk[MAX_CHL_NUMBER]; /* offset 0x100 */
112 struct bfin_can_channel_regs chl[MAX_CHL_NUMBER]; /* offset 0x200 */
113};
114
115/*
116 * bfin can private data 33 * bfin can private data
117 */ 34 */
118struct bfin_can_priv { 35struct bfin_can_priv {
@@ -163,7 +80,7 @@ static int bfin_can_set_bittiming(struct net_device *dev)
163 if (priv->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES) 80 if (priv->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES)
164 timing |= SAM; 81 timing |= SAM;
165 82
166 bfin_write16(&reg->clk, clk); 83 bfin_write16(&reg->clock, clk);
167 bfin_write16(&reg->timing, timing); 84 bfin_write16(&reg->timing, timing);
168 85
169 dev_info(dev->dev.parent, "setting CLOCK=0x%04x TIMING=0x%04x\n", 86 dev_info(dev->dev.parent, "setting CLOCK=0x%04x TIMING=0x%04x\n",
@@ -185,11 +102,11 @@ static void bfin_can_set_reset_mode(struct net_device *dev)
185 bfin_write16(&reg->gim, 0); 102 bfin_write16(&reg->gim, 0);
186 103
187 /* reset can and enter configuration mode */ 104 /* reset can and enter configuration mode */
188 bfin_write16(&reg->ctrl, SRS | CCR); 105 bfin_write16(&reg->control, SRS | CCR);
189 SSYNC(); 106 SSYNC();
190 bfin_write16(&reg->ctrl, CCR); 107 bfin_write16(&reg->control, CCR);
191 SSYNC(); 108 SSYNC();
192 while (!(bfin_read16(&reg->ctrl) & CCA)) { 109 while (!(bfin_read16(&reg->control) & CCA)) {
193 udelay(10); 110 udelay(10);
194 if (--timeout == 0) { 111 if (--timeout == 0) {
195 dev_err(dev->dev.parent, 112 dev_err(dev->dev.parent,
@@ -244,7 +161,7 @@ static void bfin_can_set_normal_mode(struct net_device *dev)
244 /* 161 /*
245 * leave configuration mode 162 * leave configuration mode
246 */ 163 */
247 bfin_write16(&reg->ctrl, bfin_read16(&reg->ctrl) & ~CCR); 164 bfin_write16(&reg->control, bfin_read16(&reg->control) & ~CCR);
248 165
249 while (bfin_read16(&reg->status) & CCA) { 166 while (bfin_read16(&reg->status) & CCA) {
250 udelay(10); 167 udelay(10);
@@ -726,7 +643,7 @@ static int bfin_can_suspend(struct platform_device *pdev, pm_message_t mesg)
726 643
727 if (netif_running(dev)) { 644 if (netif_running(dev)) {
728 /* enter sleep mode */ 645 /* enter sleep mode */
729 bfin_write16(&reg->ctrl, bfin_read16(&reg->ctrl) | SMR); 646 bfin_write16(&reg->control, bfin_read16(&reg->control) | SMR);
730 SSYNC(); 647 SSYNC();
731 while (!(bfin_read16(&reg->intr) & SMACK)) { 648 while (!(bfin_read16(&reg->intr) & SMACK)) {
732 udelay(10); 649 udelay(10);