ARM: dove: add device tree based machine descriptor

This adds a generic DT_MACHINE for mach-dove. As with other orion based
SoCs there still is some glue code required to make all internal devices
work, i.e. auxdata is provided to pass clocks to corresponding device
drivers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

2 files changed, 74 insertions, 0 deletions

diff --git a/arch/arm/mach-dove/Kconfig b/arch/arm/mach-dove/Kconfig
index dd937c526a45..00154e74ce6b 100644
--- a/arch/arm/mach-dove/Kconfig
+++ b/arch/arm/mach-dove/Kconfig
@@ -15,6 +15,13 @@ config MACH_CM_A510
           Say 'Y' here if you want your kernel to support the
           CompuLab CM-A510 Board.
 
+config MACH_DOVE_DT
+        bool "Marvell Dove Flattened Device Tree"
+        select USE_OF
+        help
+          Say 'Y' here if you want your kernel to support the
+          Marvell Dove using flattened device tree.
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c
index d5de814c52a3..b12d11a5f2d0 100644
--- a/arch/arm/mach-dove/common.c
+++ b/arch/arm/mach-dove/common.c
@@ -16,6 +16,8 @@
 #include <linux/clk-provider.h>
 #include <linux/ata_platform.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 #include <asm/page.h>
 #include <asm/setup.h>
 #include <asm/timex.h>
@@ -29,6 +31,7 @@
 #include <asm/mach/arch.h>
 #include <linux/irq.h>
 #include <plat/time.h>
+#include <plat/irq.h>
 #include <plat/ehci-orion.h>
 #include <plat/common.h>
 #include <plat/addr-map.h>
@@ -380,3 +383,67 @@ void dove_restart(char mode, const char *cmd)
         while (1)
                 ;
 }
+
+#if defined(CONFIG_MACH_DOVE_DT)
+/*
+ * Auxdata required until real OF clock provider
+ */
+struct of_dev_auxdata dove_auxdata_lookup[] __initdata = {
+        OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
+        OF_DEV_AUXDATA("marvell,orion-spi", 0xf1014600, "orion_spi.1", NULL),
+        OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
+        OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
+                       NULL),
+        OF_DEV_AUXDATA("marvell,orion-sata", 0xf10a0000, "sata_mv.0", NULL),
+        OF_DEV_AUXDATA("marvell,dove-sdhci", 0xf1092000, "sdhci-dove.0", NULL),
+        OF_DEV_AUXDATA("marvell,dove-sdhci", 0xf1090000, "sdhci-dove.1", NULL),
+        {},
+};
+
+static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
+        .phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
+};
+
+static void __init dove_dt_init(void)
+{
+        pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
+                (dove_tclk + 499999) / 1000000);
+
+#ifdef CONFIG_CACHE_TAUROS2
+        tauros2_init();
+#endif
+        dove_setup_cpu_mbus();
+
+        /* Setup root of clk tree */
+        dove_clk_init();
+
+        /* Internal devices not ported to DT yet */
+        dove_rtc_init();
+        dove_xor0_init();
+        dove_xor1_init();
+
+        dove_ge00_init(&dove_dt_ge00_data);
+        dove_ehci0_init();
+        dove_ehci1_init();
+        dove_pcie_init(1, 1);
+        dove_crypto_init();
+
+        of_platform_populate(NULL, of_default_bus_match_table,
+                             dove_auxdata_lookup, NULL);
+}
+
+static const char * const dove_dt_board_compat[] = {
+        "marvell,dove",
+        NULL
+};
+
+DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
+        .map_io         = dove_map_io,
+        .init_early     = dove_init_early,
+        .init_irq       = orion_dt_init_irq,
+        .timer          = &dove_timer,
+        .init_machine   = dove_dt_init,
+        .restart        = dove_restart,
+        .dt_compat      = dove_dt_board_compat,
+MACHINE_END
+#endif