diff options
Diffstat (limited to 'target/linux/generic/patches-3.3/132-solos-dma.patch')
| -rw-r--r-- | target/linux/generic/patches-3.3/132-solos-dma.patch | 442 |
1 files changed, 0 insertions, 442 deletions
diff --git a/target/linux/generic/patches-3.3/132-solos-dma.patch b/target/linux/generic/patches-3.3/132-solos-dma.patch deleted file mode 100644 index beba891..0000000 --- a/target/linux/generic/patches-3.3/132-solos-dma.patch +++ /dev/null @@ -1,442 +0,0 @@ -commit b4bd8ad9bb311e8536f726f7a633620ccd358cde -Author: David Woodhouse <dwmw2@infradead.org> -Date: Thu May 24 04:58:27 2012 +0000 - - solos-pci: Fix DMA support - - DMA support has finally made its way to the top of the TODO list, having - realised that a Geode using MMIO can't keep up with two ADSL2+ lines - each running at 21Mb/s. - - This patch fixes a couple of bugs in the DMA support in the driver, so - once the corresponding FPGA update is complete and tested everything - should work properly. - - We weren't storing the currently-transmitting skb, so we were never - unmapping it and never freeing/popping it when the TX was done. - And the addition of pci_set_master() is fairly self-explanatory. - - Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> - Cc: stable@kernel.org - Signed-off-by: David S. Miller <davem@davemloft.net> - -commit 152a2a8b5e1d4cbe91a7c66f1028db15164a3766 -Author: David Woodhouse <David.Woodhouse@intel.com> -Date: Wed Dec 19 11:01:21 2012 +0000 - - solos-pci: ensure all TX packets are aligned to 4 bytes - - The FPGA can't handled unaligned DMA (yet). So copy into an aligned buffer, - if skb->data isn't suitably aligned. - - Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> - Signed-off-by: David S. Miller <davem@davemloft.net> - -commit 13af816469db3449c072afbae6c4c1bd9ccecccb -Author: Nathan Williams <nathan@traverse.com.au> -Date: Wed Dec 19 11:01:20 2012 +0000 - - solos-pci: add firmware upgrade support for new models - - Signed-off-by: Nathan Williams <nathan@traverse.com.au> - Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> - Signed-off-by: David S. Miller <davem@davemloft.net> - -commit 7fbdadb5e951e4f0c0fc991ff5f50295568786e6 -Author: Nathan Williams <nathan@traverse.com.au> -Date: Wed Dec 19 11:01:19 2012 +0000 - - solos-pci: remove superfluous debug output - - Signed-off-by: Nathan Williams <nathan@traverse.com.au> - Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> - Signed-off-by: David S. Miller <davem@davemloft.net> - -commit f9baad02e7411d9f38d5ebe1a1cdcde4ceec100d -Author: Nathan Williams <nathan@traverse.com.au> -Date: Wed Dec 19 11:01:18 2012 +0000 - - solos-pci: add GPIO support for newer versions on Geos board - - dwmw2: Tidy up a little, simpler matching on which GPIO is being accessed, - only register on newer boards, register under PCI device instead of - duplicating them under each ATM device. - - Signed-off-by: Nathan Williams <nathan@traverse.com.au> - Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> - Signed-off-by: David S. Miller <davem@davemloft.net> - -commit cae49ede00ec3d0cda290b03fee55b72b49efc11 -Author: David Woodhouse <dwmw2@infradead.org> -Date: Tue Dec 11 14:57:14 2012 +0000 - - solos-pci: fix double-free of TX skb in DMA mode - - We weren't clearing card->tx_skb[port] when processing the TX done interrupt. - If there wasn't another skb ready to transmit immediately, this led to a - double-free because we'd free it *again* next time we did have a packet to - send. - - Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> - Cc: stable@kernel.org - Signed-off-by: David S. Miller <davem@davemloft.net> - -== -There is a typo here so we do a double lock instead of an unlock. - -Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> ---- -Only needed in linux-next. Introduced in f9baad02e7411d9 [14/17] -solos-pci: add GPIO support for newer versions on Geos board - - ---- 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 "1.04" -+#define DRIVER_VERSION 0x01 - #define PTAG "solos-pci" - - #define CONFIG_RAM_SIZE 128 -@@ -56,16 +57,21 @@ - #define FLASH_BUSY 0x60 - #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)) -@@ -123,11 +129,14 @@ struct solos_card { - struct sk_buff_head cli_queue[4]; - struct sk_buff *tx_skb[4]; - struct sk_buff *rx_skb[4]; -+ unsigned char *dma_bounce; - wait_queue_head_t param_wq; - wait_queue_head_t fw_wq; - int using_dma; -+ int dma_alignment; - int fpga_version; - int buffer_size; -+ int atmel_flash; - }; - - -@@ -452,7 +461,6 @@ static ssize_t console_show(struct devic - - len = skb->len; - memcpy(buf, skb->data, len); -- dev_dbg(&card->dev->dev, "len: %d\n", len); - - kfree_skb(skb); - return len; -@@ -499,6 +507,78 @@ static ssize_t console_store(struct devi - return err?:count; - } - -+struct geos_gpio_attr { -+ struct device_attribute attr; -+ int offset; -+}; -+ -+#define SOLOS_GPIO_ATTR(_name, _mode, _show, _store, _offset) \ -+ struct geos_gpio_attr gpio_attr_##_name = { \ -+ .attr = __ATTR(_name, _mode, _show, _store), \ -+ .offset = _offset } -+ -+static ssize_t geos_gpio_store(struct device *dev, struct device_attribute *attr, -+ const char *buf, size_t count) -+{ -+ struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); -+ struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); -+ struct solos_card *card = pci_get_drvdata(pdev); -+ uint32_t data32; -+ -+ if (count != 1 && (count != 2 || buf[1] != '\n')) -+ return -EINVAL; -+ -+ spin_lock_irq(&card->param_queue_lock); -+ data32 = ioread32(card->config_regs + GPIO_STATUS); -+ if (buf[0] == '1') { -+ data32 |= 1 << gattr->offset; -+ iowrite32(data32, card->config_regs + GPIO_STATUS); -+ } else if (buf[0] == '0') { -+ data32 &= ~(1 << gattr->offset); -+ iowrite32(data32, card->config_regs + GPIO_STATUS); -+ } else { -+ count = -EINVAL; -+ } -+ spin_unlock_irq(&card->param_queue_lock); -+ return count; -+} -+ -+static ssize_t geos_gpio_show(struct device *dev, struct device_attribute *attr, -+ char *buf) -+{ -+ struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); -+ struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); -+ struct solos_card *card = pci_get_drvdata(pdev); -+ uint32_t data32; -+ -+ data32 = ioread32(card->config_regs + GPIO_STATUS); -+ data32 = (data32 >> gattr->offset) & 1; -+ -+ return sprintf(buf, "%d\n", data32); -+} -+ -+static ssize_t hardware_show(struct device *dev, struct device_attribute *attr, -+ char *buf) -+{ -+ struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); -+ struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); -+ struct solos_card *card = pci_get_drvdata(pdev); -+ uint32_t data32; -+ -+ data32 = ioread32(card->config_regs + GPIO_STATUS); -+ switch (gattr->offset) { -+ case 0: -+ /* HardwareVersion */ -+ data32 = data32 & 0x1F; -+ break; -+ case 1: -+ /* HardwareVariant */ -+ data32 = (data32 >> 5) & 0x0F; -+ break; -+ } -+ return sprintf(buf, "%d\n", data32); -+} -+ - static DEVICE_ATTR(console, 0644, console_show, console_store); - - -@@ -507,6 +587,14 @@ static DEVICE_ATTR(console, 0644, consol - - #include "solos-attrlist.c" - -+static SOLOS_GPIO_ATTR(GPIO1, 0644, geos_gpio_show, geos_gpio_store, 9); -+static SOLOS_GPIO_ATTR(GPIO2, 0644, geos_gpio_show, geos_gpio_store, 10); -+static SOLOS_GPIO_ATTR(GPIO3, 0644, geos_gpio_show, geos_gpio_store, 11); -+static SOLOS_GPIO_ATTR(GPIO4, 0644, geos_gpio_show, geos_gpio_store, 12); -+static SOLOS_GPIO_ATTR(GPIO5, 0644, geos_gpio_show, geos_gpio_store, 13); -+static SOLOS_GPIO_ATTR(PushButton, 0444, geos_gpio_show, NULL, 14); -+static SOLOS_GPIO_ATTR(HardwareVersion, 0444, hardware_show, NULL, 0); -+static SOLOS_GPIO_ATTR(HardwareVariant, 0444, hardware_show, NULL, 1); - #undef SOLOS_ATTR_RO - #undef SOLOS_ATTR_RW - -@@ -523,6 +611,23 @@ static struct attribute_group solos_attr - .name = "parameters", - }; - -+static struct attribute *gpio_attrs[] = { -+ &gpio_attr_GPIO1.attr.attr, -+ &gpio_attr_GPIO2.attr.attr, -+ &gpio_attr_GPIO3.attr.attr, -+ &gpio_attr_GPIO4.attr.attr, -+ &gpio_attr_GPIO5.attr.attr, -+ &gpio_attr_PushButton.attr.attr, -+ &gpio_attr_HardwareVersion.attr.attr, -+ &gpio_attr_HardwareVariant.attr.attr, -+ NULL -+}; -+ -+static struct attribute_group gpio_attr_group = { -+ .attrs = gpio_attrs, -+ .name = "gpio", -+}; -+ - static int flash_upgrade(struct solos_card *card, int chip) - { - const struct firmware *fw; -@@ -534,16 +639,25 @@ static int flash_upgrade(struct solos_ca - 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"); -@@ -553,7 +667,10 @@ static int flash_upgrade(struct solos_ca - 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"); -@@ -569,6 +686,9 @@ static int flash_upgrade(struct solos_ca - - dev_info(&card->dev->dev, "Flash upgrade starting\n"); - -+ /* New FPGAs require driver version before permitting flash upgrades */ -+ iowrite32(DRIVER_VERSION, card->config_regs + DRIVER_VER); -+ - numblocks = fw->size / blocksize; - dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); - dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); -@@ -598,9 +718,13 @@ static int flash_upgrade(struct solos_ca - /* 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 -@@ -945,10 +1069,11 @@ static uint32_t fpga_tx(struct solos_car - for (port = 0; tx_pending; tx_pending >>= 1, port++) { - if (tx_pending & 1) { - struct sk_buff *oldskb = card->tx_skb[port]; -- if (oldskb) -+ if (oldskb) { - pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, - oldskb->len, PCI_DMA_TODEVICE); -- -+ card->tx_skb[port] = NULL; -+ } - spin_lock(&card->tx_queue_lock); - skb = skb_dequeue(&card->tx_queue[port]); - if (!skb) -@@ -960,8 +1085,14 @@ static uint32_t fpga_tx(struct solos_car - tx_started |= 1 << port; - oldskb = skb; /* We're done with this skb already */ - } else if (skb && card->using_dma) { -- SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data, -+ unsigned char *data = skb->data; -+ if ((unsigned long)data & card->dma_alignment) { -+ data = card->dma_bounce + (BUF_SIZE * port); -+ memcpy(data, skb->data, skb->len); -+ } -+ SKB_CB(skb)->dma_addr = pci_map_single(card->dev, data, - skb->len, PCI_DMA_TODEVICE); -+ card->tx_skb[port] = skb; - iowrite32(SKB_CB(skb)->dma_addr, - card->config_regs + TX_DMA_ADDR(port)); - } -@@ -1133,17 +1264,33 @@ static int fpga_probe(struct pci_dev *de - db_fpga_upgrade = db_firmware_upgrade = 0; - } - -- if (card->fpga_version >= DMA_SUPPORTED){ -+ /* Stopped using Atmel flash after 0.03-38 */ -+ if (fpga_ver < 39) -+ card->atmel_flash = 1; -+ else -+ card->atmel_flash = 0; -+ -+ data32 = ioread32(card->config_regs + PORTS); -+ card->nr_ports = (data32 & 0x000000FF); -+ -+ if (card->fpga_version >= DMA_SUPPORTED) { -+ pci_set_master(dev); - card->using_dma = 1; -+ if (1) { /* All known FPGA versions so far */ -+ card->dma_alignment = 3; -+ card->dma_bounce = kmalloc(card->nr_ports * BUF_SIZE, GFP_KERNEL); -+ if (!card->dma_bounce) { -+ dev_warn(&card->dev->dev, "Failed to allocate DMA bounce buffers\n"); -+ /* Fallback to MMIO doesn't work */ -+ goto out_unmap_both; -+ } -+ } - } else { - card->using_dma = 0; - /* Set RX empty flag for all ports */ - iowrite32(0xF0, card->config_regs + FLAGS_ADDR); - } - -- data32 = ioread32(card->config_regs + PORTS); -- card->nr_ports = (data32 & 0x000000FF); -- - pci_set_drvdata(dev, card); - - tasklet_init(&card->tlet, solos_bh, (unsigned long)card); -@@ -1178,6 +1325,10 @@ static int fpga_probe(struct pci_dev *de - if (err) - goto out_free_irq; - -+ if (card->fpga_version >= DMA_SUPPORTED && -+ sysfs_create_group(&card->dev->dev.kobj, &gpio_attr_group)) -+ dev_err(&card->dev->dev, "Could not register parameter group for GPIOs\n"); -+ - return 0; - - out_free_irq: -@@ -1186,6 +1337,7 @@ static int fpga_probe(struct pci_dev *de - tasklet_kill(&card->tlet); - - out_unmap_both: -+ kfree(card->dma_bounce); - pci_set_drvdata(dev, NULL); - pci_iounmap(dev, card->buffers); - out_unmap_config: -@@ -1288,11 +1440,16 @@ static void fpga_remove(struct pci_dev * - iowrite32(1, card->config_regs + FPGA_MODE); - (void)ioread32(card->config_regs + FPGA_MODE); - -+ if (card->fpga_version >= DMA_SUPPORTED) -+ sysfs_remove_group(&card->dev->dev.kobj, &gpio_attr_group); -+ - atm_remove(card); - - free_irq(dev->irq, card); - tasklet_kill(&card->tlet); - -+ kfree(card->dma_bounce); -+ - /* Release device from reset */ - iowrite32(0, card->config_regs + FPGA_MODE); - (void)ioread32(card->config_regs + FPGA_MODE); |