diff options
Diffstat (limited to 'arch/arm/mach-kirkwood/board-dt.c')
| -rw-r--r-- | arch/arm/mach-kirkwood/board-dt.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c deleted file mode 100644 index ff18ff20f71..00000000000 --- a/arch/arm/mach-kirkwood/board-dt.c +++ /dev/null @@ -1,223 +0,0 @@ -/* - * Copyright 2012 (C), Jason Cooper <jason@lakedaemon.net> - * - * arch/arm/mach-kirkwood/board-dt.c - * - * Flattened Device Tree board initialization - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/clk.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/of_net.h> -#include <linux/of_platform.h> -#include <linux/dma-mapping.h> -#include <linux/irqchip.h> -#include <asm/hardware/cache-feroceon-l2.h> -#include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <mach/bridge-regs.h> -#include <plat/common.h> -#include <plat/pcie.h> -#include "pm.h" - -static struct map_desc kirkwood_io_desc[] __initdata = { - { - .virtual = (unsigned long) KIRKWOOD_REGS_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE), - .length = KIRKWOOD_REGS_SIZE, - .type = MT_DEVICE, - }, -}; - -static void __init kirkwood_map_io(void) -{ - iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc)); -} - -static struct resource kirkwood_cpufreq_resources[] = { - [0] = { - .start = CPU_CONTROL_PHYS, - .end = CPU_CONTROL_PHYS + 3, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device kirkwood_cpufreq_device = { - .name = "kirkwood-cpufreq", - .id = -1, - .num_resources = ARRAY_SIZE(kirkwood_cpufreq_resources), - .resource = kirkwood_cpufreq_resources, -}; - -static void __init kirkwood_cpufreq_init(void) -{ - platform_device_register(&kirkwood_cpufreq_device); -} - -static struct resource kirkwood_cpuidle_resource[] = { - { - .flags = IORESOURCE_MEM, - .start = DDR_OPERATION_BASE, - .end = DDR_OPERATION_BASE + 3, - }, -}; - -static struct platform_device kirkwood_cpuidle = { - .name = "kirkwood_cpuidle", - .id = -1, - .resource = kirkwood_cpuidle_resource, - .num_resources = 1, -}; - -static void __init kirkwood_cpuidle_init(void) -{ - platform_device_register(&kirkwood_cpuidle); -} - -/* Temporary here since mach-mvebu has a function we can use */ -static void kirkwood_restart(enum reboot_mode mode, const char *cmd) -{ - /* - * Enable soft reset to assert RSTOUTn. - */ - writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK); - - /* - * Assert soft reset. - */ - writel(SOFT_RESET, SYSTEM_SOFT_RESET); - - while (1) - ; -} - -#define MV643XX_ETH_MAC_ADDR_LOW 0x0414 -#define MV643XX_ETH_MAC_ADDR_HIGH 0x0418 - -static void __init kirkwood_dt_eth_fixup(void) -{ - struct device_node *np; - - /* - * 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. - */ - 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); - } -} - -/* - * Disable propagation of mbus errors to the CPU local bus, as this - * causes mbus errors (which can occur for example for PCI aborts) to - * throw CPU aborts, which we're not set up to deal with. - */ -static void __init kirkwood_disable_mbus_error_propagation(void) -{ - void __iomem *cpu_config; - - cpu_config = ioremap(CPU_CONFIG_PHYS, 4); - writel(readl(cpu_config) & ~CPU_CONFIG_ERROR_PROP, cpu_config); - iounmap(cpu_config); -} - -static void __init kirkwood_dt_init(void) -{ - kirkwood_disable_mbus_error_propagation(); - - BUG_ON(mvebu_mbus_dt_init(false)); - -#ifdef CONFIG_CACHE_FEROCEON_L2 - feroceon_of_init(); -#endif - kirkwood_cpufreq_init(); - kirkwood_cpuidle_init(); - - kirkwood_pm_init(); - kirkwood_dt_eth_fixup(); - - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} - -static const char * const kirkwood_dt_board_compat[] = { - "marvell,kirkwood", - NULL -}; - -DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)") - /* Maintainer: Jason Cooper <jason@lakedaemon.net> */ - .map_io = kirkwood_map_io, - .init_machine = kirkwood_dt_init, - .restart = kirkwood_restart, - .dt_compat = kirkwood_dt_board_compat, -MACHINE_END |