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meta-elphel393
Commit 69e85632 authored by Andrey Filippov's avatar Andrey Filippov
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added initial configuration of vsc330x from the device tree

parent eacb7d5e
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Showing with 120 additions and 13 deletions
conf/machine/boards/elphel393/elphel393.dts
View file @ 69e85632
...@@ -146,6 +146,35 @@ ...@@ -146,6 +146,35 @@
vsc330x@1 { vsc330x@1 {
compatible = "vsc,vsc3304"; compatible = "vsc,vsc3304";
reg = <0x01>; reg = <0x01>;
vsc330x,configuration_name = "elphel393: from external";
/* configuration below is for external eSATA host accessing SSD. Will chnage
* when the SATA controller code will be operational
* TODO: specify optimal drive strength, pre-emphasis, etc.
* All parameters are exported to sysfs for run-time modification
*/
vsc330x,configuration_data=<
0x11080101 /*page 0x11, register 0x08, data=0x1 (inverted input), write enabled mask=0x1 */
0x11090001
0x110a0101
0x110b0101
0x110e0001
0x110f0101
0x230a0b1f /* set output mode for port 10 as non-inverted, forwarding OOB enabled */
0x230b151f /* set output mode for port 11 as inverted, forwarding OOB enabled */
0x230c151f
0x230d0b1f
0x230e151f
0x230f151f
0xff750101 /* freeze configuration to enable simultaneous modification */
0x110e0002 /* enable channel 14 input */
0x11090002 /* enable channel 9 input */
0x000b091f /* connect port 11 output to input 9 */
0x000c0e1f /* connect port 12 output to input 14 */
0xff750001 /* un-freeze configuration to apply connection modifications */
>;
}; };
} ; } ;
......
recipes-kernel/linux/linux-xlnx/vsc3304.patch
View file @ 69e85632
Index: git/drivers/misc/Kconfig Index: git/drivers/misc/Kconfig
=================================================================== ===================================================================
--- git.orig/drivers/misc/Kconfig 2013-11-26 16:00:21.216686641 -0700 --- git.orig/drivers/misc/Kconfig 2013-11-27 23:29:14.793862172 -0700
+++ git/drivers/misc/Kconfig 2013-11-26 16:00:24.260686672 -0700 +++ git/drivers/misc/Kconfig 2013-11-27 23:29:17.897862204 -0700
@@ -549,6 +549,13 @@ @@ -549,6 +549,13 @@
their requirements. their requirements.
...@@ -18,8 +18,8 @@ Index: git/drivers/misc/Kconfig ...@@ -18,8 +18,8 @@ Index: git/drivers/misc/Kconfig
source "drivers/misc/eeprom/Kconfig" source "drivers/misc/eeprom/Kconfig"
Index: git/drivers/misc/Makefile Index: git/drivers/misc/Makefile
=================================================================== ===================================================================
--- git.orig/drivers/misc/Makefile 2013-11-26 16:00:21.216686641 -0700 --- git.orig/drivers/misc/Makefile 2013-11-27 23:29:14.793862172 -0700
+++ git/drivers/misc/Makefile 2013-11-26 16:00:24.260686672 -0700 +++ git/drivers/misc/Makefile 2013-11-27 23:29:17.897862204 -0700
@@ -55,3 +55,4 @@ @@ -55,3 +55,4 @@
obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lattice-ecp3-config.o obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lattice-ecp3-config.o
obj-$(CONFIG_SRAM) += sram.o obj-$(CONFIG_SRAM) += sram.o
...@@ -28,8 +28,8 @@ Index: git/drivers/misc/Makefile ...@@ -28,8 +28,8 @@ Index: git/drivers/misc/Makefile
Index: git/drivers/misc/vsc330x.c Index: git/drivers/misc/vsc330x.c
=================================================================== ===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000 --- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ git/drivers/misc/vsc330x.c 2013-11-27 16:34:08.697603838 -0700 +++ git/drivers/misc/vsc330x.c 2013-11-28 00:46:10.785910050 -0700
@@ -0,0 +1,794 @@ @@ -0,0 +1,872 @@
+/*!*************************************************************************** +/*!***************************************************************************
+ *! FILE NAME : vsc330x.c + *! FILE NAME : vsc330x.c
+ *! DESCRIPTION: control of the VSC3304 4x4 crosspoint switch + *! DESCRIPTION: control of the VSC3304 4x4 crosspoint switch
...@@ -57,6 +57,7 @@ Index: git/drivers/misc/vsc330x.c ...@@ -57,6 +57,7 @@ Index: git/drivers/misc/vsc330x.c
+#include <linux/slab.h> +#include <linux/slab.h>
+#include <linux/mutex.h> +#include <linux/mutex.h>
+#include <linux/string.h> +#include <linux/string.h>
+#include <linux/of.h>
+ +
+#define DRV_VERSION "1.0" +#define DRV_VERSION "1.0"
+/* TODO: Descriptions from vsc3312 - check differences */ +/* TODO: Descriptions from vsc3312 - check differences */
...@@ -762,6 +763,82 @@ Index: git/drivers/misc/vsc330x.c ...@@ -762,6 +763,82 @@ Index: git/drivers/misc/vsc330x.c
+ return write_field(client, reg, val, ls_bit_num, width); + return write_field(client, reg, val, ls_bit_num, width);
+} +}
+ +
+static int write_with_mask(struct i2c_client *client, u8 reg, u8 val, u8 mask)
+{
+ int rc;
+ dev_dbg(&client->dev,"reg=0x%x, val=0x%x, mask=0x%x\n", (int) reg, (int) val, (int) mask);
+ if (val !=0xff){
+ if (((rc=read_reg(client, reg)))<0) return rc;
+ val=((val ^ rc) & mask)^ rc;
+ }
+ return write_reg(client, reg, rc);
+}
+
+static int write_page_with_mask(struct i2c_client *client, int page, u8 reg, u8 val , u8 mask)
+{
+ int rc;
+ struct vsc330x_data_t *clientdata = i2c_get_clientdata(client);
+ dev_dbg(&client->dev,"page=0x%x (last was 0x%x), reg=0x%x, val=0x%x, mask=0x%x\n",
+ page,clientdata->last_page, (int) reg, (int) val,(int) mask);
+ if ((page>=0) && (clientdata->last_page!=page)) {
+ if (((rc=write_reg(client, I2C_CURRENT_PAGE, page)))<0) return rc;
+ clientdata->last_page=page;
+ }
+ return write_with_mask(client, reg, val, mask);
+}
+
+
+
+static void vsc330x_init_of(struct i2c_client *client)
+{
+// struct device *dev=&client->dev;
+ const __be32 * config_data;
+ struct device_node *node = client->dev.of_node;
+ int len,i,rc;
+ struct vsc330x_setup_data {
+ u8 page;
+ u8 reg;
+ u8 data;
+ u8 mask;
+ };
+ struct vsc330x_setup_data setup_data;
+ __be32 * setup_data_be32= (__be32 *) &setup_data;
+
+
+ const char * config_name;
+ if (node) {
+
+ config_name = of_get_property(client->dev.of_node, "vsc330x,configuration_name", &len);
+ if (config_name){
+ dev_info(&client->dev,"Initializing %s registers for \"%s\"\n",client->name,config_name);
+ }
+ config_data = of_get_property(client->dev.of_node, "vsc330x,configuration_data", &len);
+ if (config_data){
+ len /= sizeof(*config_data);
+ dev_dbg(&client->dev,"Read %d values\n",len);
+ for (i=0;i<len;i++){
+ dev_dbg(&client->dev,"0x%08x (0x%08x)\n", config_data[i],be32_to_cpup(config_data+i));
+ *setup_data_be32=config_data[i];
+ dev_dbg(&client->dev,"page=0x%02x, reg=0x%02x, data=0x%02x, mask=0x%02x \n",
+ (int)setup_data.page, (int)setup_data.reg,(int)setup_data.data,(int)setup_data.mask);
+ if (((rc=write_page_with_mask(client, (setup_data.page==0xff)?-1:setup_data.page, setup_data.reg,
+ setup_data.dataroot , setup_data.mask)))<0) return rc;
+ }
+ } else {
+ dev_info(&client->dev,"'vsc330x,configuration_data' not found\n");
+ }
+ } else {
+ dev_info(&client->dev,"Device tree data not found for %s\n",client->name);
+ }
+}
+/*
+ dev_info(&client->dev,
+
+ */
+
+
+
+
+static int vsc330x_i2c_probe(struct i2c_client *client, +static int vsc330x_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id) + const struct i2c_device_id *id)
+{ +{
...@@ -785,6 +862,7 @@ Index: git/drivers/misc/vsc330x.c ...@@ -785,6 +862,7 @@ Index: git/drivers/misc/vsc330x.c
+ rc = vsc330x_sysfs_register(&client->dev); + rc = vsc330x_sysfs_register(&client->dev);
+ if (rc) + if (rc)
+ goto exit; + goto exit;
+ vsc330x_init_of(client);
+ return 0; /* found OK*/ + return 0; /* found OK*/
+wr_err: +wr_err:
+ rc = -EIO; + rc = -EIO;
......
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