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Message-ID: <20070220223449.GD28895@austin.ibm.com>
Date: Tue, 20 Feb 2007 16:34:50 -0600
From: linas@...tin.ibm.com (Linas Vepstas)
To: Jeff Garzik <jeff@...zik.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>,
kou.ishizaki@...hiba.co.jp, arnd@...db.de,
Jens Osterkamp <jens@...ibm.com>, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 4/12] spidernet: load firmware when open
From: Kou Ishizaki <kou.ishizaki@...hiba.co.jp>
This patch moves calling init_firmware() from spider_net_probe() to
spider_net_open() so as to use the driver by built-in.
Signed-off-by: Kou Ishizaki <kou.ishizaki@...hiba.co.jp>
Signed-off-by: Linas Vepstas <linas@...tin.ibm.com>
----
drivers/net/spider_net.c | 247 +++++++++++++++++++++++------------------------
1 file changed, 123 insertions(+), 124 deletions(-)
Index: linux-2.6.20-git16/drivers/net/spider_net.c
===================================================================
--- linux-2.6.20-git16.orig/drivers/net/spider_net.c 2007-02-20 15:02:32.000000000 -0600
+++ linux-2.6.20-git16/drivers/net/spider_net.c 2007-02-20 15:02:36.000000000 -0600
@@ -1705,6 +1705,124 @@ spider_net_enable_card(struct spider_net
}
/**
+ * spider_net_download_firmware - loads firmware into the adapter
+ * @card: card structure
+ * @firmware_ptr: pointer to firmware data
+ *
+ * spider_net_download_firmware loads the firmware data into the
+ * adapter. It assumes the length etc. to be allright.
+ */
+static int
+spider_net_download_firmware(struct spider_net_card *card,
+ const void *firmware_ptr)
+{
+ int sequencer, i;
+ const u32 *fw_ptr = firmware_ptr;
+
+ /* stop sequencers */
+ spider_net_write_reg(card, SPIDER_NET_GSINIT,
+ SPIDER_NET_STOP_SEQ_VALUE);
+
+ for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS;
+ sequencer++) {
+ spider_net_write_reg(card,
+ SPIDER_NET_GSnPRGADR + sequencer * 8, 0);
+ for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) {
+ spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT +
+ sequencer * 8, *fw_ptr);
+ fw_ptr++;
+ }
+ }
+
+ if (spider_net_read_reg(card, SPIDER_NET_GSINIT))
+ return -EIO;
+
+ spider_net_write_reg(card, SPIDER_NET_GSINIT,
+ SPIDER_NET_RUN_SEQ_VALUE);
+
+ return 0;
+}
+
+/**
+ * spider_net_init_firmware - reads in firmware parts
+ * @card: card structure
+ *
+ * Returns 0 on success, <0 on failure
+ *
+ * spider_net_init_firmware opens the sequencer firmware and does some basic
+ * checks. This function opens and releases the firmware structure. A call
+ * to download the firmware is performed before the release.
+ *
+ * Firmware format
+ * ===============
+ * spider_fw.bin is expected to be a file containing 6*1024*4 bytes, 4k being
+ * the program for each sequencer. Use the command
+ * tail -q -n +2 Seq_code1_0x088.txt Seq_code2_0x090.txt \
+ * Seq_code3_0x098.txt Seq_code4_0x0A0.txt Seq_code5_0x0A8.txt \
+ * Seq_code6_0x0B0.txt | xxd -r -p -c4 > spider_fw.bin
+ *
+ * to generate spider_fw.bin, if you have sequencer programs with something
+ * like the following contents for each sequencer:
+ * <ONE LINE COMMENT>
+ * <FIRST 4-BYTES-WORD FOR SEQUENCER>
+ * <SECOND 4-BYTES-WORD FOR SEQUENCER>
+ * ...
+ * <1024th 4-BYTES-WORD FOR SEQUENCER>
+ */
+static int
+spider_net_init_firmware(struct spider_net_card *card)
+{
+ struct firmware *firmware = NULL;
+ struct device_node *dn;
+ const u8 *fw_prop = NULL;
+ int err = -ENOENT;
+ int fw_size;
+
+ if (request_firmware((const struct firmware **)&firmware,
+ SPIDER_NET_FIRMWARE_NAME, &card->pdev->dev) == 0) {
+ if ( (firmware->size != SPIDER_NET_FIRMWARE_LEN) &&
+ netif_msg_probe(card) ) {
+ pr_err("Incorrect size of spidernet firmware in " \
+ "filesystem. Looking in host firmware...\n");
+ goto try_host_fw;
+ }
+ err = spider_net_download_firmware(card, firmware->data);
+
+ release_firmware(firmware);
+ if (err)
+ goto try_host_fw;
+
+ goto done;
+ }
+
+try_host_fw:
+ dn = pci_device_to_OF_node(card->pdev);
+ if (!dn)
+ goto out_err;
+
+ fw_prop = get_property(dn, "firmware", &fw_size);
+ if (!fw_prop)
+ goto out_err;
+
+ if ( (fw_size != SPIDER_NET_FIRMWARE_LEN) &&
+ netif_msg_probe(card) ) {
+ pr_err("Incorrect size of spidernet firmware in " \
+ "host firmware\n");
+ goto done;
+ }
+
+ err = spider_net_download_firmware(card, fw_prop);
+
+done:
+ return err;
+out_err:
+ if (netif_msg_probe(card))
+ pr_err("Couldn't find spidernet firmware in filesystem " \
+ "or host firmware\n");
+ return err;
+}
+
+/**
* spider_net_open - called upon ifonfig up
* @netdev: interface device structure
*
@@ -1719,6 +1837,10 @@ spider_net_open(struct net_device *netde
struct spider_net_card *card = netdev_priv(netdev);
int result;
+ result = spider_net_init_firmware(card);
+ if (result)
+ goto init_firmware_failed;
+
/* start probing with copper */
spider_net_setup_aneg(card);
if (card->phy.def->phy_id)
@@ -1762,6 +1884,7 @@ alloc_rx_failed:
spider_net_free_chain(card, &card->tx_chain);
alloc_tx_failed:
del_timer_sync(&card->aneg_timer);
+init_firmware_failed:
return result;
}
@@ -1873,124 +1996,6 @@ spider_net_setup_phy(struct spider_net_c
}
/**
- * spider_net_download_firmware - loads firmware into the adapter
- * @card: card structure
- * @firmware_ptr: pointer to firmware data
- *
- * spider_net_download_firmware loads the firmware data into the
- * adapter. It assumes the length etc. to be allright.
- */
-static int
-spider_net_download_firmware(struct spider_net_card *card,
- const void *firmware_ptr)
-{
- int sequencer, i;
- const u32 *fw_ptr = firmware_ptr;
-
- /* stop sequencers */
- spider_net_write_reg(card, SPIDER_NET_GSINIT,
- SPIDER_NET_STOP_SEQ_VALUE);
-
- for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS;
- sequencer++) {
- spider_net_write_reg(card,
- SPIDER_NET_GSnPRGADR + sequencer * 8, 0);
- for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) {
- spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT +
- sequencer * 8, *fw_ptr);
- fw_ptr++;
- }
- }
-
- if (spider_net_read_reg(card, SPIDER_NET_GSINIT))
- return -EIO;
-
- spider_net_write_reg(card, SPIDER_NET_GSINIT,
- SPIDER_NET_RUN_SEQ_VALUE);
-
- return 0;
-}
-
-/**
- * spider_net_init_firmware - reads in firmware parts
- * @card: card structure
- *
- * Returns 0 on success, <0 on failure
- *
- * spider_net_init_firmware opens the sequencer firmware and does some basic
- * checks. This function opens and releases the firmware structure. A call
- * to download the firmware is performed before the release.
- *
- * Firmware format
- * ===============
- * spider_fw.bin is expected to be a file containing 6*1024*4 bytes, 4k being
- * the program for each sequencer. Use the command
- * tail -q -n +2 Seq_code1_0x088.txt Seq_code2_0x090.txt \
- * Seq_code3_0x098.txt Seq_code4_0x0A0.txt Seq_code5_0x0A8.txt \
- * Seq_code6_0x0B0.txt | xxd -r -p -c4 > spider_fw.bin
- *
- * to generate spider_fw.bin, if you have sequencer programs with something
- * like the following contents for each sequencer:
- * <ONE LINE COMMENT>
- * <FIRST 4-BYTES-WORD FOR SEQUENCER>
- * <SECOND 4-BYTES-WORD FOR SEQUENCER>
- * ...
- * <1024th 4-BYTES-WORD FOR SEQUENCER>
- */
-static int
-spider_net_init_firmware(struct spider_net_card *card)
-{
- struct firmware *firmware = NULL;
- struct device_node *dn;
- const u8 *fw_prop = NULL;
- int err = -ENOENT;
- int fw_size;
-
- if (request_firmware((const struct firmware **)&firmware,
- SPIDER_NET_FIRMWARE_NAME, &card->pdev->dev) == 0) {
- if ( (firmware->size != SPIDER_NET_FIRMWARE_LEN) &&
- netif_msg_probe(card) ) {
- pr_err("Incorrect size of spidernet firmware in " \
- "filesystem. Looking in host firmware...\n");
- goto try_host_fw;
- }
- err = spider_net_download_firmware(card, firmware->data);
-
- release_firmware(firmware);
- if (err)
- goto try_host_fw;
-
- goto done;
- }
-
-try_host_fw:
- dn = pci_device_to_OF_node(card->pdev);
- if (!dn)
- goto out_err;
-
- fw_prop = get_property(dn, "firmware", &fw_size);
- if (!fw_prop)
- goto out_err;
-
- if ( (fw_size != SPIDER_NET_FIRMWARE_LEN) &&
- netif_msg_probe(card) ) {
- pr_err("Incorrect size of spidernet firmware in " \
- "host firmware\n");
- goto done;
- }
-
- err = spider_net_download_firmware(card, fw_prop);
-
-done:
- return err;
-out_err:
- if (netif_msg_probe(card))
- pr_err("Couldn't find spidernet firmware in filesystem " \
- "or host firmware\n");
- return err;
-}
-
-/**
* spider_net_workaround_rxramfull - work around firmware bug
* @card: card structure
*
@@ -2090,8 +2095,6 @@ spider_net_tx_timeout_task(struct work_s
if (spider_net_setup_phy(card))
goto out;
- if (spider_net_init_firmware(card))
- goto out;
spider_net_open(netdev);
spider_net_kick_tx_dma(card);
@@ -2363,10 +2366,6 @@ spider_net_probe(struct pci_dev *pdev, c
if (err)
goto out_undo_pci;
- err = spider_net_init_firmware(card);
- if (err)
- goto out_undo_pci;
-
err = spider_net_setup_netdev(card);
if (err)
goto out_undo_pci;
-
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