#include <linux/clk-provider.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <dt-bindings/clock/bcm3368-clock.h>
#include <dt-bindings/clock/bcm6318-clock.h>
#include <dt-bindings/clock/bcm6328-clock.h>
#include <dt-bindings/clock/bcm6358-clock.h>
#include <dt-bindings/clock/bcm6362-clock.h>
#include <dt-bindings/clock/bcm6368-clock.h>
#include <dt-bindings/clock/bcm63268-clock.h>
struct clk_bcm63xx_table_entry {
const char * const name;
u8 bit;
unsigned long flags;
};
struct clk_bcm63xx_hw {
void __iomem *regs;
spinlock_t lock;
struct clk_hw_onecell_data data;
};
static const struct clk_bcm63xx_table_entry bcm3368_clocks[] = {
{
.name = "mac",
.bit = BCM3368_CLK_MAC,
}, {
.name = "tc",
.bit = BCM3368_CLK_TC,
}, {
.name = "us_top",
.bit = BCM3368_CLK_US_TOP,
}, {
.name = "ds_top",
.bit = BCM3368_CLK_DS_TOP,
}, {
.name = "acm",
.bit = BCM3368_CLK_ACM,
}, {
.name = "spi",
.bit = BCM3368_CLK_SPI,
}, {
.name = "usbs",
.bit = BCM3368_CLK_USBS,
}, {
.name = "bmu",
.bit = BCM3368_CLK_BMU,
}, {
.name = "pcm",
.bit = BCM3368_CLK_PCM,
}, {
.name = "ntp",
.bit = BCM3368_CLK_NTP,
}, {
.name = "acp_b",
.bit = BCM3368_CLK_ACP_B,
}, {
.name = "acp_a",
.bit = BCM3368_CLK_ACP_A,
}, {
.name = "emusb",
.bit = BCM3368_CLK_EMUSB,
}, {
.name = "enet0",
.bit = BCM3368_CLK_ENET0,
}, {
.name = "enet1",
.bit = BCM3368_CLK_ENET1,
}, {
.name = "usbsu",
.bit = BCM3368_CLK_USBSU,
}, {
.name = "ephy",
.bit = BCM3368_CLK_EPHY,
}, {
},
};
static const struct clk_bcm63xx_table_entry bcm6318_clocks[] = {
{
.name = "adsl_asb",
.bit = BCM6318_CLK_ADSL_ASB,
}, {
.name = "usb_asb",
.bit = BCM6318_CLK_USB_ASB,
}, {
.name = "mips_asb",
.bit = BCM6318_CLK_MIPS_ASB,
}, {
.name = "pcie_asb",
.bit = BCM6318_CLK_PCIE_ASB,
}, {
.name = "phymips_asb",
.bit = BCM6318_CLK_PHYMIPS_ASB,
}, {
.name = "robosw_asb",
.bit = BCM6318_CLK_ROBOSW_ASB,
}, {
.name = "sar_asb",
.bit = BCM6318_CLK_SAR_ASB,
}, {
.name = "sdr_asb",
.bit = BCM6318_CLK_SDR_ASB,
}, {
.name = "swreg_asb",
.bit = BCM6318_CLK_SWREG_ASB,
}, {
.name = "periph_asb",
.bit = BCM6318_CLK_PERIPH_ASB,
}, {
.name = "cpubus160",
.bit = BCM6318_CLK_CPUBUS160,
}, {
.name = "adsl",
.bit = BCM6318_CLK_ADSL,
}, {
.name = "sar125",
.bit = BCM6318_CLK_SAR125,
}, {
.name = "mips",
.bit = BCM6318_CLK_MIPS,
.flags = CLK_IS_CRITICAL,
}, {
.name = "pcie",
.bit = BCM6318_CLK_PCIE,
}, {
.name = "robosw250",
.bit = BCM6318_CLK_ROBOSW250,
}, {
.name = "robosw025",
.bit = BCM6318_CLK_ROBOSW025,
}, {
.name = "sdr",
.bit = BCM6318_CLK_SDR,
.flags = CLK_IS_CRITICAL,
}, {
.name = "usbd",
.bit = BCM6318_CLK_USBD,
}, {
.name = "hsspi",
.bit = BCM6318_CLK_HSSPI,
}, {
.name = "pcie25",
.bit = BCM6318_CLK_PCIE25,
}, {
.name = "phymips",
.bit = BCM6318_CLK_PHYMIPS,
}, {
.name = "afe",
.bit = BCM6318_CLK_AFE,
}, {
.name = "qproc",
.bit = BCM6318_CLK_QPROC,
}, {
},
};
static const struct clk_bcm63xx_table_entry bcm6318_ubus_clocks[] = {
{
.name = "adsl-ubus",
.bit = BCM6318_UCLK_ADSL,
}, {
.name = "arb-ubus",
.bit = BCM6318_UCLK_ARB,
.flags = CLK_IS_CRITICAL,
}, {
.name = "mips-ubus",
.bit = BCM6318_UCLK_MIPS,
.flags = CLK_IS_CRITICAL,
}, {
.name = "pcie-ubus",
.bit = BCM6318_UCLK_PCIE,
}, {
.name = "periph-ubus",
.bit = BCM6318_UCLK_PERIPH,
.flags = CLK_IS_CRITICAL,
}, {
.name = "phymips-ubus",
.bit = BCM6318_UCLK_PHYMIPS,
}, {
.name = "robosw-ubus",
.bit = BCM6318_UCLK_ROBOSW,
}, {
.name = "sar-ubus",
.bit = BCM6318_UCLK_SAR,
}, {
.name = "sdr-ubus",
.bit = BCM6318_UCLK_SDR,
}, {
.name = "usb-ubus",
.bit = BCM6318_UCLK_USB,
}, {
},
};
static const struct clk_bcm63xx_table_entry bcm6328_clocks[] = {
{
.name = "phy_mips",
.bit = BCM6328_CLK_PHYMIPS,
}, {
.name = "adsl_qproc",
.bit = BCM6328_CLK_ADSL_QPROC,
}, {
.name = "adsl_afe",
.bit = BCM6328_CLK_ADSL_AFE,
}, {
.name = "adsl",
.bit = BCM6328_CLK_ADSL,
}, {
.name = "mips",
.bit = BCM6328_CLK_MIPS,
.flags = CLK_IS_CRITICAL,
}, {
.name = "sar",
.bit = BCM6328_CLK_SAR,
}, {
.name = "pcm",
.bit = BCM6328_CLK_PCM,
}, {
.name = "usbd",
.bit = BCM6328_CLK_USBD,
}, {
.name = "usbh",
.bit = BCM6328_CLK_USBH,
}, {
.name = "hsspi",
.bit = BCM6328_CLK_HSSPI,
}, {
.name = "pcie",
.bit = BCM6328_CLK_PCIE,
}, {
.name = "robosw",
.bit = BCM6328_CLK_ROBOSW,
}, {
},
};
static const struct clk_bcm63xx_table_entry bcm6358_clocks[] = {
{
.name = "enet",
.bit = BCM6358_CLK_ENET,
}, {
.name = "adslphy",
.bit = BCM6358_CLK_ADSLPHY,
}, {
.name = "pcm",
.bit = BCM6358_CLK_PCM,
}, {
.name = "spi",
.bit = BCM6358_CLK_SPI,
}, {
.name = "usbs",
.bit = BCM6358_CLK_USBS,
}, {
.name = "sar",
.bit = BCM6358_CLK_SAR,
}, {
.name = "emusb",
.bit = BCM6358_CLK_EMUSB,
}, {
.name = "enet0",
.bit = BCM6358_CLK_ENET0,
}, {
.name = "enet1",
.bit = BCM6358_CLK_ENET1,
}, {
.name = "usbsu",
.bit = BCM6358_CLK_USBSU,
}, {
.name = "ephy",
.bit = BCM6358_CLK_EPHY,
}, {
},
};
static const struct clk_bcm63xx_table_entry bcm6362_clocks[] = {
{
.name = "adsl_qproc",
.bit = BCM6362_CLK_ADSL_QPROC,
}, {
.name = "adsl_afe",
.bit = BCM6362_CLK_ADSL_AFE,
}, {
.name = "adsl",
.bit = BCM6362_CLK_ADSL,
}, {
.name = "mips",
.bit = BCM6362_CLK_MIPS,
.flags = CLK_IS_CRITICAL,
}, {
.name = "wlan_ocp",
.bit = BCM6362_CLK_WLAN_OCP,
}, {
.name = "swpkt_usb",
.bit = BCM6362_CLK_SWPKT_USB,
}, {
.name = "swpkt_sar",
.bit = BCM6362_CLK_SWPKT_SAR,
}, {
.name = "sar",
.bit = BCM6362_CLK_SAR,
}, {
.name = "robosw",
.bit = BCM6362_CLK_ROBOSW,
}, {
.name = "pcm",
.bit = BCM6362_CLK_PCM,
}, {
.name = "usbd",
.bit = BCM6362_CLK_USBD,
}, {
.name = "usbh",
.bit = BCM6362_CLK_USBH,
}, {
.name = "ipsec",
.bit = BCM6362_CLK_IPSEC,
}, {
.name = "spi",
.bit = BCM6362_CLK_SPI,
}, {
.name = "hsspi",
.bit = BCM6362_CLK_HSSPI,
}, {
.name = "pcie",
.bit = BCM6362_CLK_PCIE,
}, {
.name = "fap",
.bit = BCM6362_CLK_FAP,
}, {
.name = "phymips",
.bit = BCM6362_CLK_PHYMIPS,
}, {
.name = "nand",
.bit = BCM6362_CLK_NAND,
}, {
},
};
static const struct clk_bcm63xx_table_entry bcm6368_clocks[] = {
{
.name = "vdsl_qproc",
.bit = BCM6368_CLK_VDSL_QPROC,
}, {
.name = "vdsl_afe",
.bit = BCM6368_CLK_VDSL_AFE,
}, {
.name = "vdsl_bonding",
.bit = BCM6368_CLK_VDSL_BONDING,
}, {
.name = "vdsl",
.bit = BCM6368_CLK_VDSL,
}, {
.name = "phymips",
.bit = BCM6368_CLK_PHYMIPS,
}, {
.name = "swpkt_usb",
.bit = BCM6368_CLK_SWPKT_USB,
}, {
.name = "swpkt_sar",
.bit = BCM6368_CLK_SWPKT_SAR,
}, {
.name = "spi",
.bit = BCM6368_CLK_SPI,
}, {
.name = "usbd",
.bit = BCM6368_CLK_USBD,
}, {
.name = "sar",
.bit = BCM6368_CLK_SAR,
}, {
.name = "robosw",
.bit = BCM6368_CLK_ROBOSW,
}, {
.name = "utopia",
.bit = BCM6368_CLK_UTOPIA,
}, {
.name = "pcm",
.bit = BCM6368_CLK_PCM,
}, {
.name = "usbh",
.bit = BCM6368_CLK_USBH,
}, {
.name = "disable_gless",
.bit = BCM6368_CLK_DIS_GLESS,
}, {
.name = "nand",
.bit = BCM6368_CLK_NAND,
}, {
.name = "ipsec",
.bit = BCM6368_CLK_IPSEC,
}, {
},
};
static const struct clk_bcm63xx_table_entry bcm63268_clocks[] = {
{
.name = "disable_gless",
.bit = BCM63268_CLK_DIS_GLESS,
}, {
.name = "vdsl_qproc",
.bit = BCM63268_CLK_VDSL_QPROC,
}, {
.name = "vdsl_afe",
.bit = BCM63268_CLK_VDSL_AFE,
}, {
.name = "vdsl",
.bit = BCM63268_CLK_VDSL,
}, {
.name = "mips",
.bit = BCM63268_CLK_MIPS,
.flags = CLK_IS_CRITICAL,
}, {
.name = "wlan_ocp",
.bit = BCM63268_CLK_WLAN_OCP,
}, {
.name = "dect",
.bit = BCM63268_CLK_DECT,
}, {
.name = "fap0",
.bit = BCM63268_CLK_FAP0,
}, {
.name = "fap1",
.bit = BCM63268_CLK_FAP1,
}, {
.name = "sar",
.bit = BCM63268_CLK_SAR,
}, {
.name = "robosw",
.bit = BCM63268_CLK_ROBOSW,
}, {
.name = "pcm",
.bit = BCM63268_CLK_PCM,
}, {
.name = "usbd",
.bit = BCM63268_CLK_USBD,
}, {
.name = "usbh",
.bit = BCM63268_CLK_USBH,
}, {
.name = "ipsec",
.bit = BCM63268_CLK_IPSEC,
}, {
.name = "spi",
.bit = BCM63268_CLK_SPI,
}, {
.name = "hsspi",
.bit = BCM63268_CLK_HSSPI,
}, {
.name = "pcie",
.bit = BCM63268_CLK_PCIE,
}, {
.name = "phymips",
.bit = BCM63268_CLK_PHYMIPS,
}, {
.name = "gmac",
.bit = BCM63268_CLK_GMAC,
}, {
.name = "nand",
.bit = BCM63268_CLK_NAND,
}, {
.name = "tbus",
.bit = BCM63268_CLK_TBUS,
}, {
.name = "robosw250",
.bit = BCM63268_CLK_ROBOSW250,
}, {
},
};
static int clk_bcm63xx_probe(struct platform_device *pdev)
{
const struct clk_bcm63xx_table_entry *entry, *table;
struct clk_bcm63xx_hw *hw;
u8 maxbit = 0;
int i, ret;
table = of_device_get_match_data(&pdev->dev);
if (!table)
return -EINVAL;
for (entry = table; entry->name; entry++)
maxbit = max_t(u8, maxbit, entry->bit);
maxbit++;
hw = devm_kzalloc(&pdev->dev, struct_size(hw, data.hws, maxbit),
GFP_KERNEL);
if (!hw)
return -ENOMEM;
platform_set_drvdata(pdev, hw);
spin_lock_init(&hw->lock);
hw->data.num = maxbit;
for (i = 0; i < maxbit; i++)
hw->data.hws[i] = ERR_PTR(-ENODEV);
hw->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(hw->regs))
return PTR_ERR(hw->regs);
for (entry = table; entry->name; entry++) {
struct clk_hw *clk;
clk = clk_hw_register_gate(&pdev->dev, entry->name, NULL,
entry->flags, hw->regs, entry->bit,
CLK_GATE_BIG_ENDIAN, &hw->lock);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
goto out_err;
}
hw->data.hws[entry->bit] = clk;
}
ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get,
&hw->data);
if (!ret)
return 0;
out_err:
for (i = 0; i < hw->data.num; i++) {
if (!IS_ERR(hw->data.hws[i]))
clk_hw_unregister_gate(hw->data.hws[i]);
}
return ret;
}
static void clk_bcm63xx_remove(struct platform_device *pdev)
{
struct clk_bcm63xx_hw *hw = platform_get_drvdata(pdev);
int i;
of_clk_del_provider(pdev->dev.of_node);
for (i = 0; i < hw->data.num; i++) {
if (!IS_ERR(hw->data.hws[i]))
clk_hw_unregister_gate(hw->data.hws[i]);
}
}
static const struct of_device_id clk_bcm63xx_dt_ids[] = {
{ .compatible = "brcm,bcm3368-clocks", .data = &bcm3368_clocks, },
{ .compatible = "brcm,bcm6318-clocks", .data = &bcm6318_clocks, },
{ .compatible = "brcm,bcm6318-ubus-clocks", .data = &bcm6318_ubus_clocks, },
{ .compatible = "brcm,bcm6328-clocks", .data = &bcm6328_clocks, },
{ .compatible = "brcm,bcm6358-clocks", .data = &bcm6358_clocks, },
{ .compatible = "brcm,bcm6362-clocks", .data = &bcm6362_clocks, },
{ .compatible = "brcm,bcm6368-clocks", .data = &bcm6368_clocks, },
{ .compatible = "brcm,bcm63268-clocks", .data = &bcm63268_clocks, },
{ }
};
static struct platform_driver clk_bcm63xx = {
.probe = clk_bcm63xx_probe,
.remove = clk_bcm63xx_remove,
.driver = {
.name = "bcm63xx-clock",
.of_match_table = clk_bcm63xx_dt_ids,
},
};
builtin_platform_driver(clk_bcm63xx);
