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authorJonas Gorski <jogo@openwrt.org>2013-01-23 10:12:37 +0000
committerJonas Gorski <jogo@openwrt.org>2013-01-23 10:12:37 +0000
commit17d51121a621082f1cda4a7224afc1915f95d5c6 (patch)
tree6aea82f7df3975d8106c4466e59646484516efc5
parentbb0118c66fbf7cefe47b5964188ef5cc53a530f6 (diff)
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bcm63xx: expose the internal switch to b53
Allow b53 access to the internal switch of BCM6328, BCM6362 and BCM6368. Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 35306
-rw-r--r--target/linux/brcm63xx/patches-3.6/447-bcm63xx_enet_add_b53_support.patch169
1 files changed, 169 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.6/447-bcm63xx_enet_add_b53_support.patch b/target/linux/brcm63xx/patches-3.6/447-bcm63xx_enet_add_b53_support.patch
new file mode 100644
index 0000000000..93ef40945a
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.6/447-bcm63xx_enet_add_b53_support.patch
@@ -0,0 +1,169 @@
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+@@ -364,6 +364,9 @@ struct bcm_enet_priv {
+ struct bcm63xx_enetsw_port used_ports[ENETSW_MAX_PORT];
+ int sw_port_link[ENETSW_MAX_PORT];
+
++ /* platform device for associated switch */
++ struct platform_device *b53_device;
++
+ /* used to poll switch port state */
+ struct timer_list swphy_poll;
+ spinlock_t enetsw_mdio_lock;
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -30,6 +30,7 @@
+ #include <linux/dma-mapping.h>
+ #include <linux/platform_device.h>
+ #include <linux/if_vlan.h>
++#include <linux/platform_data/b53.h>
+
+ #include <bcm63xx_dev_enet.h>
+ #include "bcm63xx_enet.h"
+@@ -2013,7 +2014,8 @@ static int __devexit bcm_enet_remove(str
+ return 0;
+ }
+
+-struct platform_driver bcm63xx_enet_driver = {
++
++static struct platform_driver bcm63xx_enet_driver = {
+ .probe = bcm_enet_probe,
+ .remove = __devexit_p(bcm_enet_remove),
+ .driver = {
+@@ -2022,6 +2024,42 @@ struct platform_driver bcm63xx_enet_driv
+ },
+ };
+
++struct b53_platform_data bcm63xx_b53_pdata = {
++ .chip_id = 0x6300,
++ .big_endian = 1,
++};
++
++struct platform_device bcm63xx_b53_dev = {
++ .name = "b53-switch",
++ .id = -1,
++ .dev = {
++ .platform_data = &bcm63xx_b53_pdata,
++ },
++};
++
++static int bcmenet_switch_register(struct bcm_enet_priv *priv, u16 port_mask)
++{
++ int ret;
++
++ bcm63xx_b53_pdata.regs = priv->base;
++ bcm63xx_b53_pdata.enabled_ports = port_mask;
++ bcm63xx_b53_pdata.alias = priv->net_dev->name;
++
++ ret = platform_device_register(&bcm63xx_b53_dev);
++ if (!ret)
++ priv->b53_device = &bcm63xx_b53_dev;
++
++ return ret;
++}
++
++static void bcmenet_switch_unregister(struct bcm_enet_priv *priv)
++{
++ if (priv->b53_device)
++ platform_device_unregister(&bcm63xx_b53_dev);
++
++ priv->b53_device = NULL;
++}
++
+ /*
+ * switch mii access callbacks
+ */
+@@ -2270,29 +2308,6 @@ static int bcm_enetsw_open(struct net_de
+ enetsw_writeb(priv, rgmii_ctrl, ENETSW_RGMII_CTRL_REG(i));
+ }
+
+- /* reset mib */
+- val = enetsw_readb(priv, ENETSW_GMCR_REG);
+- val |= ENETSW_GMCR_RST_MIB_MASK;
+- enetsw_writeb(priv, val, ENETSW_GMCR_REG);
+- mdelay(1);
+- val &= ~ENETSW_GMCR_RST_MIB_MASK;
+- enetsw_writeb(priv, val, ENETSW_GMCR_REG);
+- mdelay(1);
+-
+- /* force CPU port state */
+- val = enetsw_readb(priv, ENETSW_IMPOV_REG);
+- val |= ENETSW_IMPOV_FORCE_MASK | ENETSW_IMPOV_LINKUP_MASK;
+- enetsw_writeb(priv, val, ENETSW_IMPOV_REG);
+-
+- /* enable switch forward engine */
+- val = enetsw_readb(priv, ENETSW_SWMODE_REG);
+- val |= ENETSW_SWMODE_FWD_EN_MASK;
+- enetsw_writeb(priv, val, ENETSW_SWMODE_REG);
+-
+- /* enable jumbo on all ports */
+- enetsw_writel(priv, 0x1ff, ENETSW_JMBCTL_PORT_REG);
+- enetsw_writew(priv, 9728, ENETSW_JMBCTL_MAXSIZE_REG);
+-
+ /* initialize flow control buffer allocation */
+ enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
+ ENETDMA_BUFALLOC_REG(priv->rx_chan));
+@@ -2760,6 +2775,9 @@ static int __devinit bcm_enetsw_probe(st
+ struct bcm63xx_enetsw_platform_data *pd;
+ struct resource *res_mem;
+ int ret, irq_rx, irq_tx;
++ unsigned i, num_ports = 0;
++ u16 port_mask = BIT(8);
++ u8 val;
+
+ /* stop if shared driver failed, assume driver->probe will be
+ * called in the same order we register devices (correct ?) */
+@@ -2847,6 +2865,43 @@ static int __devinit bcm_enetsw_probe(st
+ priv->pdev = pdev;
+ priv->net_dev = dev;
+
++ /* reset mib */
++ val = enetsw_readb(priv, ENETSW_GMCR_REG);
++ val |= ENETSW_GMCR_RST_MIB_MASK;
++ enetsw_writeb(priv, val, ENETSW_GMCR_REG);
++ mdelay(1);
++ val &= ~ENETSW_GMCR_RST_MIB_MASK;
++ enetsw_writeb(priv, val, ENETSW_GMCR_REG);
++ mdelay(1);
++
++ /* force CPU port state */
++ val = enetsw_readb(priv, ENETSW_IMPOV_REG);
++ val |= ENETSW_IMPOV_FORCE_MASK | ENETSW_IMPOV_LINKUP_MASK;
++ enetsw_writeb(priv, val, ENETSW_IMPOV_REG);
++
++ /* enable switch forward engine */
++ val = enetsw_readb(priv, ENETSW_SWMODE_REG);
++ val |= ENETSW_SWMODE_FWD_EN_MASK;
++ enetsw_writeb(priv, val, ENETSW_SWMODE_REG);
++
++ /* enable jumbo on all ports */
++ enetsw_writel(priv, 0x1ff, ENETSW_JMBCTL_PORT_REG);
++ enetsw_writew(priv, 9728, ENETSW_JMBCTL_MAXSIZE_REG);
++
++ for (i = 0; i < priv->num_ports; i++) {
++ struct bcm63xx_enetsw_port *port = &priv->used_ports[i];
++
++ if (!port->used)
++ continue;
++
++ num_ports++;
++ port_mask |= BIT(i);
++ }
++
++ /* only register if there is more than one external port */
++ if (num_ports > 1)
++ bcmenet_switch_register(priv, port_mask);
++
+ return 0;
+
+ out_put_clk:
+@@ -2877,6 +2932,9 @@ static int __devexit bcm_enetsw_remove(s
+ priv = netdev_priv(dev);
+ unregister_netdev(dev);
+
++ /* remove switch */
++ bcmenet_switch_unregister(priv);
++
+ /* release device resources */
+ iounmap(priv->base);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);