forked from Minki/linux
ARM: Dove: split legacy and DT setup
In the beginning of DT for Dove it was reasonable to have it close to non-DT code. With improved DT support, it became more and more difficult to not break non-DT while changing DT code. This patch splits up DT board setup and introduces a DOVE_LEGACY config to allow to remove legacy code for DT-only kernels. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Arnd Bergmann
parent
9f86f27611
commit
48be9ac930
@ -2,8 +2,12 @@ if ARCH_DOVE
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menu "Marvell Dove Implementations"
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config DOVE_LEGACY
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bool
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config MACH_DOVE_DB
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bool "Marvell DB-MV88AP510 Development Board"
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select DOVE_LEGACY
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select I2C_BOARDINFO
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help
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Say 'Y' here if you want your kernel to support the
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@ -11,6 +15,7 @@ config MACH_DOVE_DB
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config MACH_CM_A510
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bool "CompuLab CM-A510 Board"
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select DOVE_LEGACY
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help
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Say 'Y' here if you want your kernel to support the
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CompuLab CM-A510 Board.
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@ -1,4 +1,6 @@
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obj-y += common.o addr-map.o irq.o mpp.o
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obj-y += common.o addr-map.o irq.o
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obj-$(CONFIG_DOVE_LEGACY) += mpp.o
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obj-$(CONFIG_PCI) += pcie.o
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obj-$(CONFIG_MACH_DOVE_DB) += dove-db-setup.o
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obj-$(CONFIG_MACH_DOVE_DT) += board-dt.o
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obj-$(CONFIG_MACH_CM_A510) += cm-a510.o
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102
arch/arm/mach-dove/board-dt.c
Normal file
102
arch/arm/mach-dove/board-dt.c
Normal file
@ -0,0 +1,102 @@
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/*
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* arch/arm/mach-dove/board-dt.c
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*
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* Marvell Dove 88AP510 System On Chip FDT Board
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/init.h>
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#include <linux/clk-provider.h>
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#include <linux/clk/mvebu.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/platform_data/usb-ehci-orion.h>
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#include <asm/hardware/cache-tauros2.h>
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#include <asm/mach/arch.h>
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#include <mach/pm.h>
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#include <plat/common.h>
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#include <plat/irq.h>
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#include "common.h"
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/*
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* There are still devices that doesn't even know about DT,
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* get clock gates here and add a clock lookup.
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*/
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static void __init dove_legacy_clk_init(void)
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{
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struct device_node *np = of_find_compatible_node(NULL, NULL,
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"marvell,dove-gating-clock");
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struct of_phandle_args clkspec;
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clkspec.np = np;
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clkspec.args_count = 1;
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clkspec.args[0] = CLOCK_GATING_BIT_USB0;
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orion_clkdev_add(NULL, "orion-ehci.0",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_USB1;
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orion_clkdev_add(NULL, "orion-ehci.1",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_GBE;
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orion_clkdev_add(NULL, "mv643xx_eth_port.0",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_PCIE0;
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orion_clkdev_add("0", "pcie",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_PCIE1;
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orion_clkdev_add("1", "pcie",
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of_clk_get_from_provider(&clkspec));
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}
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static void __init dove_of_clk_init(void)
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{
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mvebu_clocks_init();
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dove_legacy_clk_init();
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}
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static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
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};
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static void __init dove_dt_init(void)
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{
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pr_info("Dove 88AP510 SoC\n");
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#ifdef CONFIG_CACHE_TAUROS2
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tauros2_init(0);
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#endif
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dove_setup_cpu_mbus();
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/* Setup root of clk tree */
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dove_of_clk_init();
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/* Internal devices not ported to DT yet */
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dove_ge00_init(&dove_dt_ge00_data);
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dove_ehci0_init();
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dove_ehci1_init();
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dove_pcie_init(1, 1);
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of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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}
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static const char * const dove_dt_board_compat[] = {
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"marvell,dove",
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NULL
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};
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DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
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.map_io = dove_map_io,
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.init_early = dove_init_early,
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.init_irq = orion_dt_init_irq,
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.init_time = dove_timer_init,
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.init_machine = dove_dt_init,
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.restart = dove_restart,
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.dt_compat = dove_dt_board_compat,
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MACHINE_END
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@ -360,88 +360,3 @@ void dove_restart(char mode, const char *cmd)
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while (1)
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;
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}
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#if defined(CONFIG_MACH_DOVE_DT)
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/*
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* There are still devices that doesn't even know about DT,
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* get clock gates here and add a clock lookup.
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*/
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static void __init dove_legacy_clk_init(void)
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{
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struct device_node *np = of_find_compatible_node(NULL, NULL,
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"marvell,dove-gating-clock");
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struct of_phandle_args clkspec;
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clkspec.np = np;
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clkspec.args_count = 1;
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clkspec.args[0] = CLOCK_GATING_BIT_USB0;
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orion_clkdev_add(NULL, "orion-ehci.0",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_USB1;
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orion_clkdev_add(NULL, "orion-ehci.1",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_GBE;
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orion_clkdev_add(NULL, "mv643xx_eth_port.0",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_PCIE0;
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orion_clkdev_add("0", "pcie",
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of_clk_get_from_provider(&clkspec));
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clkspec.args[0] = CLOCK_GATING_BIT_PCIE1;
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orion_clkdev_add("1", "pcie",
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of_clk_get_from_provider(&clkspec));
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}
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static void __init dove_of_clk_init(void)
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{
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mvebu_clocks_init();
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dove_legacy_clk_init();
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}
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static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
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};
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static void __init dove_dt_init(void)
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{
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pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
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(dove_tclk + 499999) / 1000000);
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#ifdef CONFIG_CACHE_TAUROS2
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tauros2_init(0);
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#endif
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dove_setup_cpu_mbus();
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/* Setup root of clk tree */
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dove_of_clk_init();
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/* Internal devices not ported to DT yet */
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dove_rtc_init();
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dove_ge00_init(&dove_dt_ge00_data);
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dove_ehci0_init();
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dove_ehci1_init();
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dove_pcie_init(1, 1);
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of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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}
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static const char * const dove_dt_board_compat[] = {
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"marvell,dove",
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NULL
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};
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DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
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.map_io = dove_map_io,
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.init_early = dove_init_early,
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.init_irq = orion_dt_init_irq,
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.init_time = dove_timer_init,
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.init_machine = dove_dt_init,
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.restart = dove_restart,
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.dt_compat = dove_dt_board_compat,
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MACHINE_END
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#endif
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