linux-atm: update solos-pci driver to upstream

Fixes for the solos-pci driver.

- Corrects calculation of headroom for padding.
- Removes pointless debug messages.
- Expose Bis A and Bis M annex capabilities.
- Expose hardware revision.

Signed-off-by: Philip Prindeville <philipp_subx@redfish-solutions.com>

SVN-Revision: 30541

1 files changed, 348 insertions, 0 deletions

diff --git a/target/linux/generic/patches-3.1/050-linux-atm_nathan.patch b/target/linux/generic/patches-3.1/050-linux-atm_nathan.patch
new file mode 100644
index 0000000..19e22d5
--- /dev/null
+++ b/target/linux/generic/patches-3.1/050-linux-atm_nathan.patch
@@ -0,0 +1,348 @@
+From: Nathan Williams <nathan@traverse.com.au>
+To: netdev@vger.kernel.org
+Date: Wed, 05 Oct 2011 15:43:30 +1100
+Cc: linux-atm-general@lists.sourceforge.net,
+        David Woodhouse <dwmw2@infradead.org>, linux-kernel@vger.kernel.org
+Subject: [Linux-ATM-General] [PATCH 1/4] atm: solos-pci: Add AnnexA/M
+	capability attributes
+
+BisACapability and BisMCapability allow users to
+force either Annex A or Annex M.
+
+Signed-off-by: Nathan Williams <nathan@traverse.com.au>
+---
+ drivers/atm/solos-attrlist.c |    2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/drivers/atm/solos-attrlist.c b/drivers/atm/solos-attrlist.c
+index 9a676ee..8092533 100644
+--- a/drivers/atm/solos-attrlist.c
++++ b/drivers/atm/solos-attrlist.c
+@@ -71,6 +71,8 @@ SOLOS_ATTR_RW(BisAForceSNRMarginDn)
+ SOLOS_ATTR_RW(BisMForceSNRMarginDn)
+ SOLOS_ATTR_RW(BisAMaxMargin)
+ SOLOS_ATTR_RW(BisMMaxMargin)
++SOLOS_ATTR_RW(BisACapability)
++SOLOS_ATTR_RW(BisMCapability)
+ SOLOS_ATTR_RW(AnnexAForceSNRMarginDn)
+ SOLOS_ATTR_RW(AnnexAMaxMargin)
+ SOLOS_ATTR_RW(AnnexMMaxMargin)
+
+From: Nathan Williams <nathan@traverse.com.au>
+To: netdev@vger.kernel.org
+Date: Wed, 05 Oct 2011 15:44:17 +1100
+Cc: linux-atm-general@lists.sourceforge.net,
+        David Woodhouse <dwmw2@infradead.org>, linux-kernel@vger.kernel.org
+Subject: [Linux-ATM-General] [PATCH 2/4] atm: solos-pci: Remove annoying
+	line of debugging
+
+"len: %d" isn't particularly useful for anyone and confuses users.
+
+Signed-off-by: Nathan Williams <nathan@traverse.com.au>
+---
+ drivers/atm/solos-pci.c |    1 -
+ 1 files changed, 0 insertions(+), 1 deletions(-)
+
+diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
+index 5d1d076..bd01aa3 100644
+--- a/drivers/atm/solos-pci.c
++++ b/drivers/atm/solos-pci.c
+@@ -452,7 +452,6 @@ static ssize_t console_show(struct device *dev, struct device_attribute *attr,
+ 
+ 	len = skb->len;
+ 	memcpy(buf, skb->data, len);
+-	dev_dbg(&card->dev->dev, "len: %d\n", len);
+ 
+ 	kfree_skb(skb);
+ 	return len;
+From: Nathan Williams <nathan@traverse.com.au>
+To: netdev@vger.kernel.org
+Date: Wed, 05 Oct 2011 15:45:15 +1100
+Cc: linux-atm-general@lists.sourceforge.net,
+        David Woodhouse <dwmw2@infradead.org>, linux-kernel@vger.kernel.org
+Subject: [Linux-ATM-General] [PATCH 3/4] atm: solos-pci: Add support for
+	Geos GPIO pins
+
+Geos ADSL2+ routers have on-board Solos chipsets with some
+extra I/O pins and a push button connected to the FPGA.
+
+PCB version and variant numbers are also made available
+through the HardwareVersion and HardwareVariant attributes.
+
+Signed-off-by: Nathan Williams <nathan@traverse.com.au>
+---
+ drivers/atm/solos-pci.c |   98 +++++++++++++++++++++++++++++++++++++++++++++++
+ 1 files changed, 98 insertions(+), 0 deletions(-)
+
+diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
+index bd01aa3..33c0c2b 100644
+--- a/drivers/atm/solos-pci.c
++++ b/drivers/atm/solos-pci.c
+@@ -56,6 +56,7 @@
+ #define FLASH_BUSY	0x60
+ #define FPGA_MODE	0x5C
+ #define FLASH_MODE	0x58
++#define GPIO_STATUS	0x54
+ #define TX_DMA_ADDR(port)	(0x40 + (4 * (port)))
+ #define RX_DMA_ADDR(port)	(0x30 + (4 * (port)))
+ 
+@@ -498,6 +499,87 @@ static ssize_t console_store(struct device *dev, struct device_attribute *attr,
+ 	return err?:count;
+ }
+ 
++struct geos_gpio {
++	char *name;
++	int offset;
++};
++
++static struct geos_gpio geos_gpio_pins[] = {
++	{"GPIO1", 9},
++	{"GPIO2", 10},
++	{"GPIO3", 11},
++	{"GPIO4", 12},
++	{"GPIO5", 13},
++	{"PushButton", 14},
++	{NULL, 0}
++};
++
++static ssize_t geos_gpio_store(struct device *dev, struct device_attribute *attr,
++			       const char *buf, size_t count)
++{
++	struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
++	struct solos_card *card = atmdev->dev_data;
++	uint32_t data32;
++
++	struct geos_gpio *p = geos_gpio_pins;
++	while(p->name){
++		if(!strcmp(attr->attr.name, p->name)){
++			break;
++		}
++		p++;
++	}
++
++	data32 = ioread32(card->config_regs + GPIO_STATUS);
++	if(buf[0] == '1'){
++		data32 |= 1 << p->offset;
++		iowrite32(data32, card->config_regs + GPIO_STATUS);
++	} else if(buf[0] == '0') {
++		data32 &= ~(1 << p->offset);
++		iowrite32(data32, card->config_regs + GPIO_STATUS);
++	}
++	return count;
++}
++
++static ssize_t geos_gpio_show(struct device *dev, struct device_attribute *attr,
++			      char *buf)
++{
++	struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
++	struct solos_card *card = atmdev->dev_data;
++	uint32_t data32;
++
++	struct geos_gpio *p = geos_gpio_pins;
++	while(p->name){
++		if(!strcmp(attr->attr.name, p->name)){
++			break;
++		}
++		p++;
++	}
++
++	data32 = ioread32(card->config_regs + GPIO_STATUS);
++	data32 = (data32 >> p->offset) & 1;
++
++	return sprintf(buf, "%d\n", data32);
++}
++
++static ssize_t hardware_show(struct device *dev, struct device_attribute *attr,
++			     char *buf)
++{
++	struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
++	struct solos_card *card = atmdev->dev_data;
++	uint32_t data32;
++
++	data32 = ioread32(card->config_regs + GPIO_STATUS);
++	if(!strcmp(attr->attr.name, "HardwareVersion")){
++		data32 = data32 & 0x1F;
++		return sprintf(buf, "%d\n", data32);
++	} else if(!strcmp(attr->attr.name, "HardwareVariant")){
++		data32 = (data32 >> 5) & 0x0F;
++		return sprintf(buf, "%d\n", data32);
++	}
++
++	return sprintf(buf, "Error\n");
++}
++
+ static DEVICE_ATTR(console, 0644, console_show, console_store);
+ 
+ 
+@@ -506,6 +588,14 @@ static DEVICE_ATTR(console, 0644, console_show, console_store);
+ 
+ #include "solos-attrlist.c"
+ 
++static DEVICE_ATTR(GPIO1, 0644, geos_gpio_show, geos_gpio_store);
++static DEVICE_ATTR(GPIO2, 0644, geos_gpio_show, geos_gpio_store);
++static DEVICE_ATTR(GPIO3, 0644, geos_gpio_show, geos_gpio_store);
++static DEVICE_ATTR(GPIO4, 0644, geos_gpio_show, geos_gpio_store);
++static DEVICE_ATTR(GPIO5, 0644, geos_gpio_show, geos_gpio_store);
++static DEVICE_ATTR(PushButton, 0444, geos_gpio_show, NULL);
++static DEVICE_ATTR(HardwareVersion, 0444, hardware_show, NULL);
++static DEVICE_ATTR(HardwareVariant, 0444, hardware_show, NULL);
+ #undef SOLOS_ATTR_RO
+ #undef SOLOS_ATTR_RW
+ 
+@@ -514,6 +604,14 @@ static DEVICE_ATTR(console, 0644, console_show, console_store);
+ 
+ static struct attribute *solos_attrs[] = {
+ #include "solos-attrlist.c"
++	&dev_attr_GPIO1.attr,
++	&dev_attr_GPIO2.attr,
++	&dev_attr_GPIO3.attr,
++	&dev_attr_GPIO4.attr,
++	&dev_attr_GPIO5.attr,
++	&dev_attr_PushButton.attr,
++	&dev_attr_HardwareVersion.attr,
++	&dev_attr_HardwareVariant.attr,
+ 	NULL
+ };
+ 
+From: Nathan Williams <nathan@traverse.com.au>
+To: netdev@vger.kernel.org
+Date: Wed, 05 Oct 2011 15:46:08 +1100
+Cc: linux-atm-general@lists.sourceforge.net,
+        David Woodhouse <dwmw2@infradead.org>, linux-kernel@vger.kernel.org
+Subject: [Linux-ATM-General] [PATCH 4/4] atm: solos-pci: M25P/M25PE SPI
+	flash support
+
+Newer Geos ADSL2+ routers have different SPI flash.
+The FPGA on these boards require driver version = 1 to enable
+flash upgrades so old drivers can't corrupt new boards.
+
+Signed-off-by: Nathan Williams <nathan@traverse.com.au>
+---
+ drivers/atm/solos-pci.c |   51 ++++++++++++++++++++++++++++++++++++----------
+ 1 files changed, 40 insertions(+), 11 deletions(-)
+
+diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
+index 33c0c2b..2a75bf7 100644
+--- a/drivers/atm/solos-pci.c
++++ b/drivers/atm/solos-pci.c
+@@ -42,7 +42,8 @@
+ #include <linux/swab.h>
+ #include <linux/slab.h>
+ 
+-#define VERSION "0.07"
++#define VERSION "1.0"
++#define DRIVER_VERSION 0x01
+ #define PTAG "solos-pci"
+ 
+ #define CONFIG_RAM_SIZE	128
+@@ -57,16 +58,20 @@
+ #define FPGA_MODE	0x5C
+ #define FLASH_MODE	0x58
+ #define GPIO_STATUS	0x54
++#define DRIVER_VER	0x50
+ #define TX_DMA_ADDR(port)	(0x40 + (4 * (port)))
+ #define RX_DMA_ADDR(port)	(0x30 + (4 * (port)))
+ 
+ #define DATA_RAM_SIZE	32768
+ #define BUF_SIZE	2048
+ #define OLD_BUF_SIZE	4096 /* For FPGA versions <= 2*/
+-#define FPGA_PAGE	528 /* FPGA flash page size*/
+-#define SOLOS_PAGE	512 /* Solos flash page size*/
+-#define FPGA_BLOCK	(FPGA_PAGE * 8) /* FPGA flash block size*/
+-#define SOLOS_BLOCK	(SOLOS_PAGE * 8) /* Solos flash block size*/
++/* Old boards use ATMEL AD45DB161D flash */
++#define ATMEL_FPGA_PAGE	528 /* FPGA flash page size*/
++#define ATMEL_SOLOS_PAGE	512 /* Solos flash page size*/
++#define ATMEL_FPGA_BLOCK	(ATMEL_FPGA_PAGE * 8) /* FPGA block size*/
++#define ATMEL_SOLOS_BLOCK	(ATMEL_SOLOS_PAGE * 8) /* Solos block size*/
++/* Current boards use M25P/M25PE SPI flash */
++#define SPI_FLASH_BLOCK	(256 * 64)
+ 
+ #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2)
+ #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size))
+@@ -128,6 +133,7 @@ struct solos_card {
+ 	int using_dma;
+ 	int fpga_version;
+ 	int buffer_size;
++	int atmel_flash;
+ };
+ 
+ 
+@@ -631,16 +637,25 @@ static int flash_upgrade(struct solos_card *card, int chip)
+ 	switch (chip) {
+ 	case 0:
+ 		fw_name = "solos-FPGA.bin";
+-		blocksize = FPGA_BLOCK;
++		if (card->atmel_flash)
++			blocksize = ATMEL_FPGA_BLOCK;
++		else
++			blocksize = SPI_FLASH_BLOCK;
+ 		break;
+ 	case 1:
+ 		fw_name = "solos-Firmware.bin";
+-		blocksize = SOLOS_BLOCK;
++		if (card->atmel_flash)
++			blocksize = ATMEL_SOLOS_BLOCK;
++		else
++			blocksize = SPI_FLASH_BLOCK;
+ 		break;
+ 	case 2:
+ 		if (card->fpga_version > LEGACY_BUFFERS){
+ 			fw_name = "solos-db-FPGA.bin";
+-			blocksize = FPGA_BLOCK;
++			if (card->atmel_flash)
++				blocksize = ATMEL_FPGA_BLOCK;
++			else
++				blocksize = SPI_FLASH_BLOCK;
+ 		} else {
+ 			dev_info(&card->dev->dev, "FPGA version doesn't support"
+ 					" daughter board upgrades\n");
+@@ -650,7 +665,10 @@ static int flash_upgrade(struct solos_card *card, int chip)
+ 	case 3:
+ 		if (card->fpga_version > LEGACY_BUFFERS){
+ 			fw_name = "solos-Firmware.bin";
+-			blocksize = SOLOS_BLOCK;
++			if (card->atmel_flash)
++				blocksize = ATMEL_SOLOS_BLOCK;
++			else
++				blocksize = SPI_FLASH_BLOCK;
+ 		} else {
+ 			dev_info(&card->dev->dev, "FPGA version doesn't support"
+ 					" daughter board upgrades\n");
+@@ -695,9 +713,13 @@ static int flash_upgrade(struct solos_card *card, int chip)
+ 		/* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
+ 		iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
+ 
+-		/* Copy block to buffer, swapping each 16 bits */
++		/* Copy block to buffer, swapping each 16 bits for Atmel flash */
+ 		for(i = 0; i < blocksize; i += 4) {
+-			uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
++			uint32_t word;
++			if (card->atmel_flash)
++				word = swahb32p((uint32_t *)(fw->data + offset + i));
++			else
++				word = *(uint32_t *)(fw->data + offset + i);
+ 			if(card->fpga_version > LEGACY_BUFFERS)
+ 				iowrite32(word, FLASH_BUF + i);
+ 			else
+@@ -1249,6 +1271,11 @@ static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
+ 		db_fpga_upgrade = db_firmware_upgrade = 0;
+ 	}
+ 
++	/* Stopped using Atmel flash after 0.03-38 */
++	if (fpga_ver < 39)
++		card->atmel_flash = 1;
++	else
++		card->atmel_flash = 0;
+ 	if (card->fpga_version >= DMA_SUPPORTED){
+ 		card->using_dma = 1;
+ 	} else {
+@@ -1256,6 +1283,8 @@ static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
+ 		/* Set RX empty flag for all ports */
+ 		iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
+ 	}
++	/* New FPGAs require driver version before permitting flash upgrades */
++	iowrite32(DRIVER_VERSION, card->config_regs + DRIVER_VER);
+ 
+ 	data32 = ioread32(card->config_regs + PORTS);
+ 	card->nr_ports = (data32 & 0x000000FF);