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-rw-r--r--target/linux/bcm53xx/config-3.105
-rw-r--r--target/linux/brcm47xx/config-3.101
-rw-r--r--target/linux/brcm63xx/config-3.101
-rw-r--r--target/linux/generic/files/drivers/net/phy/b53/Kconfig7
-rw-r--r--target/linux/generic/files/drivers/net/phy/b53/Makefile1
-rw-r--r--target/linux/generic/files/drivers/net/phy/b53/b53_srab.c380
6 files changed, 392 insertions, 3 deletions
diff --git a/target/linux/bcm53xx/config-3.10 b/target/linux/bcm53xx/config-3.10
index 325d884dd4..b8ac7d3e65 100644
--- a/target/linux/bcm53xx/config-3.10
+++ b/target/linux/bcm53xx/config-3.10
@@ -38,8 +38,8 @@ CONFIG_ATAGS=y
CONFIG_AUTO_ZRELADDR=y
CONFIG_B53=y
# CONFIG_B53_MMAP_DRIVER is not set
-CONFIG_B53_PHY_DRIVER=y
-CONFIG_B53_PHY_FIXUP=y
+# CONFIG_B53_PHY_DRIVER is not set
+CONFIG_B53_SRAB_DRIVER=y
CONFIG_BCMA=y
CONFIG_BCMA_BLOCKIO=y
CONFIG_BCMA_DEBUG=y
@@ -98,7 +98,6 @@ CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
-CONFIG_HAVE_AOUT=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_HAVE_ARCH_PFN_VALID=y
diff --git a/target/linux/brcm47xx/config-3.10 b/target/linux/brcm47xx/config-3.10
index 9d4f503d07..7518bb80d0 100644
--- a/target/linux/brcm47xx/config-3.10
+++ b/target/linux/brcm47xx/config-3.10
@@ -11,6 +11,7 @@ CONFIG_B53=y
# CONFIG_B53_MMAP_DRIVER is not set
CONFIG_B53_PHY_DRIVER=y
CONFIG_B53_PHY_FIXUP=y
+# CONFIG_B53_SRAB_DRIVER is not set
CONFIG_BCM47XX=y
CONFIG_BCM47XX_BCMA=y
CONFIG_BCM47XX_SSB=y
diff --git a/target/linux/brcm63xx/config-3.10 b/target/linux/brcm63xx/config-3.10
index f54a471cc7..e47a22ad55 100644
--- a/target/linux/brcm63xx/config-3.10
+++ b/target/linux/brcm63xx/config-3.10
@@ -13,6 +13,7 @@ CONFIG_B53_MMAP_DRIVER=y
CONFIG_B53_PHY_DRIVER=y
CONFIG_B53_PHY_FIXUP=y
CONFIG_B53_SPI_DRIVER=y
+# CONFIG_B53_SRAB_DRIVER is not set
CONFIG_BCM63XX=y
CONFIG_BCM63XX_CPU_3368=y
CONFIG_BCM63XX_CPU_6328=y
diff --git a/target/linux/generic/files/drivers/net/phy/b53/Kconfig b/target/linux/generic/files/drivers/net/phy/b53/Kconfig
index 3b514fb622..67e053ea0f 100644
--- a/target/linux/generic/files/drivers/net/phy/b53/Kconfig
+++ b/target/linux/generic/files/drivers/net/phy/b53/Kconfig
@@ -26,5 +26,12 @@ config B53_MMAP_DRIVER
Select to enable support for memory-mapped switches like the BCM63XX
integrated switches.
+config B53_SRAB_DRIVER
+ tristate "B53 SRAB connected switch driver"
+ depends on B53
+ help
+ Select to enable support for memory-mapped Switch Register Access
+ Bridge Registers (SRAB) like it is found on the BCM53010
+
config B53_PHY_FIXUP
bool
diff --git a/target/linux/generic/files/drivers/net/phy/b53/Makefile b/target/linux/generic/files/drivers/net/phy/b53/Makefile
index 146196e088..7cc39c7628 100644
--- a/target/linux/generic/files/drivers/net/phy/b53/Makefile
+++ b/target/linux/generic/files/drivers/net/phy/b53/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_B53) += b53_common.o
obj-$(CONFIG_B53_PHY_FIXUP) += b53_phy_fixup.o
obj-$(CONFIG_B53_MMAP_DRIVER) += b53_mmap.o
+obj-$(CONFIG_B53_SRAB_DRIVER) += b53_srab.o
obj-$(CONFIG_B53_PHY_DRIVER) += b53_mdio.o
obj-$(CONFIG_B53_SPI_DRIVER) += b53_spi.o
diff --git a/target/linux/generic/files/drivers/net/phy/b53/b53_srab.c b/target/linux/generic/files/drivers/net/phy/b53/b53_srab.c
new file mode 100644
index 0000000000..f0743b7017
--- /dev/null
+++ b/target/linux/generic/files/drivers/net/phy/b53/b53_srab.c
@@ -0,0 +1,380 @@
+/*
+ * B53 register access through Switch Register Access Bridge Registers
+ *
+ * Copyright (C) 2013 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/b53.h>
+
+#include "b53_priv.h"
+
+/* command and status register of the SRAB */
+#define B53_SRAB_CMDSTAT 0x2c
+#define B53_SRAB_CMDSTAT_RST BIT(2)
+#define B53_SRAB_CMDSTAT_WRITE BIT(1)
+#define B53_SRAB_CMDSTAT_GORDYN BIT(0)
+#define B53_SRAB_CMDSTAT_PAGE 24
+#define B53_SRAB_CMDSTAT_REG 16
+
+/* high order word of write data to switch registe */
+#define B53_SRAB_WD_H 0x30
+
+/* low order word of write data to switch registe */
+#define B53_SRAB_WD_L 0x34
+
+/* high order word of read data from switch register */
+#define B53_SRAB_RD_H 0x38
+
+/* low order word of read data from switch register */
+#define B53_SRAB_RD_L 0x3c
+
+/* command and status register of the SRAB */
+#define B53_SRAB_CTRLS 0x40
+#define B53_SRAB_CTRLS_RCAREQ BIT(3)
+#define B53_SRAB_CTRLS_RCAGNT BIT(4)
+#define B53_SRAB_CTRLS_SW_INIT_DONE BIT(6)
+
+/* the register captures interrupt pulses from the switch */
+#define B53_SRAB_INTR 0x44
+
+static int b53_srab_request_grant(struct b53_device *dev)
+{
+ u8 __iomem *regs = dev->priv;
+ u32 ctrls;
+ int i;
+
+ ctrls = readl(regs + B53_SRAB_CTRLS);
+ ctrls |= B53_SRAB_CTRLS_RCAREQ;
+ writel(ctrls, regs + B53_SRAB_CTRLS);
+
+ for (i = 0; i < 20; i++) {
+ ctrls = readl(regs + B53_SRAB_CTRLS);
+ if (ctrls & B53_SRAB_CTRLS_RCAGNT)
+ break;
+ usleep_range(10, 100);
+ }
+ if (WARN_ON(i == 5))
+ return -EIO;
+
+ return 0;
+}
+
+static void b53_srab_release_grant(struct b53_device *dev)
+{
+ u8 __iomem *regs = dev->priv;
+ u32 ctrls;
+
+ ctrls = readl(regs + B53_SRAB_CTRLS);
+ ctrls &= ~B53_SRAB_CTRLS_RCAREQ;
+ writel(ctrls, regs + B53_SRAB_CTRLS);
+}
+
+static int b53_srab_op(struct b53_device *dev, u8 page, u8 reg, u32 op)
+{
+ int i;
+ u32 cmdstat;
+ u8 __iomem *regs = dev->priv;
+
+ /* set register address */
+ cmdstat = (page << B53_SRAB_CMDSTAT_PAGE) |
+ (reg << B53_SRAB_CMDSTAT_REG) |
+ B53_SRAB_CMDSTAT_GORDYN |
+ op;
+ writel(cmdstat, regs + B53_SRAB_CMDSTAT);
+
+ /* check if operation completed */
+ for (i = 0; i < 5; ++i) {
+ cmdstat = readl(regs + B53_SRAB_CMDSTAT);
+ if (!(cmdstat & B53_SRAB_CMDSTAT_GORDYN))
+ break;
+ usleep_range(10, 100);
+ }
+
+ if (WARN_ON(i == 5))
+ return -EIO;
+
+ return 0;
+}
+
+static int b53_srab_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L) & 0xff;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L) & 0xffff;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L);
+ *val += ((u64)readl(regs + B53_SRAB_RD_H) & 0xffff) << 32;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L);
+ *val += (u64)readl(regs + B53_SRAB_RD_H) << 32;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel(value, regs + B53_SRAB_WD_L);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write16(struct b53_device *dev, u8 page, u8 reg,
+ u16 value)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel(value, regs + B53_SRAB_WD_L);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write32(struct b53_device *dev, u8 page, u8 reg,
+ u32 value)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel(value, regs + B53_SRAB_WD_L);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+
+}
+
+static int b53_srab_write48(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel((u32)value, regs + B53_SRAB_WD_L);
+ writel((u16)(value >> 32), regs + B53_SRAB_WD_H);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+
+}
+
+static int b53_srab_write64(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ u8 __iomem *regs = dev->priv;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel((u32)value, regs + B53_SRAB_WD_L);
+ writel((u32)(value >> 32), regs + B53_SRAB_WD_H);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static struct b53_io_ops b53_srab_ops = {
+ .read8 = b53_srab_read8,
+ .read16 = b53_srab_read16,
+ .read32 = b53_srab_read32,
+ .read48 = b53_srab_read48,
+ .read64 = b53_srab_read64,
+ .write8 = b53_srab_write8,
+ .write16 = b53_srab_write16,
+ .write32 = b53_srab_write32,
+ .write48 = b53_srab_write48,
+ .write64 = b53_srab_write64,
+};
+
+static int b53_srab_probe(struct platform_device *pdev)
+{
+ struct b53_platform_data *pdata = pdev->dev.platform_data;
+ struct b53_device *dev;
+
+ if (!pdata)
+ return -EINVAL;
+
+ dev = b53_switch_alloc(&pdev->dev, &b53_srab_ops, pdata->regs);
+ if (!dev)
+ return -ENOMEM;
+
+ if (pdata)
+ dev->pdata = pdata;
+
+ pdev->dev.platform_data = dev;
+
+ return b53_switch_register(dev);
+}
+
+static int b53_srab_remove(struct platform_device *pdev)
+{
+ struct b53_device *dev = pdev->dev.platform_data;
+
+ if (dev) {
+ pdev->dev.platform_data = dev->pdata;
+ b53_switch_remove(dev);
+ }
+
+ return 0;
+}
+
+static struct platform_driver b53_srab_driver = {
+ .probe = b53_srab_probe,
+ .remove = b53_srab_remove,
+ .driver = {
+ .name = "b53-srab-switch",
+ },
+};
+
+module_platform_driver(b53_srab_driver);
+MODULE_AUTHOR("Hauke Mehrtens <hauke@hauke-m.de>");
+MODULE_DESCRIPTION("B53 Switch Register Access Bridge Registers (SRAB) access driver");
+MODULE_LICENSE("Dual BSD/GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 13:30:41 +0000