* warranty of any kind, whether express or implied.
*/
+#include <linux/clk.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_net.h>
#include <linux/of_platform.h>
#include <linux/clk-provider.h>
-#include <linux/clocksource.h>
-#include <linux/dma-mapping.h>
-#include <linux/irqchip.h>
-#include <linux/kexec.h>
+#include <linux/slab.h>
#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
#include <mach/bridge-regs.h>
-#include <linux/platform_data/usb-ehci-orion.h>
-#include <plat/irq.h>
#include <plat/common.h>
#include "common.h"
-/*
- * There are still devices that doesn't know about DT yet. Get clock
- * gates here and add a clock lookup alias, so that old platform
- * devices still work.
-*/
+#define MV643XX_ETH_MAC_ADDR_LOW 0x0414
+#define MV643XX_ETH_MAC_ADDR_HIGH 0x0418
-static void __init kirkwood_legacy_clk_init(void)
+static void __init kirkwood_dt_eth_fixup(void)
{
-
- struct device_node *np = of_find_compatible_node(
- NULL, NULL, "marvell,kirkwood-gating-clock");
- struct of_phandle_args clkspec;
- struct clk *clk;
-
- clkspec.np = np;
- clkspec.args_count = 1;
-
- clkspec.args[0] = CGC_BIT_PEX0;
- orion_clkdev_add("0", "pcie",
- of_clk_get_from_provider(&clkspec));
-
- clkspec.args[0] = CGC_BIT_PEX1;
- orion_clkdev_add("1", "pcie",
- of_clk_get_from_provider(&clkspec));
+ struct device_node *np;
/*
- * The ethernet interfaces forget the MAC address assigned by
- * u-boot if the clocks are turned off. Until proper DT support
- * is available we always enable them for now.
+ * The ethernet interfaces forget the MAC address assigned by u-boot
+ * if the clocks are turned off. Usually, u-boot on kirkwood boards
+ * has no DT support to properly set local-mac-address property.
+ * As a workaround, we get the MAC address from mv643xx_eth registers
+ * and update the port device node if no valid MAC address is set.
*/
- clkspec.args[0] = CGC_BIT_GE0;
- clk = of_clk_get_from_provider(&clkspec);
- clk_prepare_enable(clk);
-
- clkspec.args[0] = CGC_BIT_GE1;
- clk = of_clk_get_from_provider(&clkspec);
- clk_prepare_enable(clk);
-}
-
-static void __init kirkwood_dt_time_init(void)
-{
- of_clk_init(NULL);
- clocksource_of_init();
-}
-
-static void __init kirkwood_dt_init_early(void)
-{
- mvebu_mbus_init("marvell,kirkwood-mbus",
- BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
- DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ);
+ for_each_compatible_node(np, NULL, "marvell,kirkwood-eth-port") {
+ struct device_node *pnp = of_get_parent(np);
+ struct clk *clk;
+ struct property *pmac;
+ void __iomem *io;
+ u8 *macaddr;
+ u32 reg;
+
+ if (!pnp)
+ continue;
+
+ /* skip disabled nodes or nodes with valid MAC address*/
+ if (!of_device_is_available(pnp) || of_get_mac_address(np))
+ goto eth_fixup_skip;
+
+ clk = of_clk_get(pnp, 0);
+ if (IS_ERR(clk))
+ goto eth_fixup_skip;
+
+ io = of_iomap(pnp, 0);
+ if (!io)
+ goto eth_fixup_no_map;
+
+ /* ensure port clock is not gated to not hang CPU */
+ clk_prepare_enable(clk);
+
+ /* store MAC address register contents in local-mac-address */
+ pr_err(FW_INFO "%s: local-mac-address is not set\n",
+ np->full_name);
+
+ pmac = kzalloc(sizeof(*pmac) + 6, GFP_KERNEL);
+ if (!pmac)
+ goto eth_fixup_no_mem;
+
+ pmac->value = pmac + 1;
+ pmac->length = 6;
+ pmac->name = kstrdup("local-mac-address", GFP_KERNEL);
+ if (!pmac->name) {
+ kfree(pmac);
+ goto eth_fixup_no_mem;
+ }
+
+ macaddr = pmac->value;
+ reg = readl(io + MV643XX_ETH_MAC_ADDR_HIGH);
+ macaddr[0] = (reg >> 24) & 0xff;
+ macaddr[1] = (reg >> 16) & 0xff;
+ macaddr[2] = (reg >> 8) & 0xff;
+ macaddr[3] = reg & 0xff;
+
+ reg = readl(io + MV643XX_ETH_MAC_ADDR_LOW);
+ macaddr[4] = (reg >> 8) & 0xff;
+ macaddr[5] = reg & 0xff;
+
+ of_update_property(np, pmac);
+
+eth_fixup_no_mem:
+ iounmap(io);
+ clk_disable_unprepare(clk);
+eth_fixup_no_map:
+ clk_put(clk);
+eth_fixup_skip:
+ of_node_put(pnp);
+ }
}
static void __init kirkwood_dt_init(void)
kirkwood_l2_init();
kirkwood_cpufreq_init();
-
- /* Setup clocks for legacy devices */
- kirkwood_legacy_clk_init();
-
kirkwood_cpuidle_init();
+ kirkwood_pm_init();
+ kirkwood_dt_eth_fixup();
+
#ifdef CONFIG_KEXEC
kexec_reinit = kirkwood_enable_pcie;
#endif
DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
/* Maintainer: Jason Cooper <jason@lakedaemon.net> */
.map_io = kirkwood_map_io,
- .init_early = kirkwood_dt_init_early,
- .init_time = kirkwood_dt_time_init,
.init_machine = kirkwood_dt_init,
.restart = kirkwood_restart,
.dt_compat = kirkwood_dt_board_compat,
projects / karo-tx-linux.git / blobdiff