+++ /dev/null
-/*
- * Address map functions for Marvell 370 / XP SoCs
- *
- * Copyright (C) 2012 Marvell
- *
- * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- *
- * 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/kernel.h>
-#include <linux/init.h>
-#include <linux/mbus.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <plat/addr-map.h>
-
-/*
- * Generic Address Decode Windows bit settings
- */
-#define ARMADA_XP_TARGET_DEV_BUS 1
-#define ARMADA_XP_ATTR_DEV_BOOTROM 0x1D
-#define ARMADA_XP_TARGET_ETH1 3
-#define ARMADA_XP_TARGET_PCIE_0_2 4
-#define ARMADA_XP_TARGET_ETH0 7
-#define ARMADA_XP_TARGET_PCIE_1_3 8
-
-#define ARMADA_370_TARGET_DEV_BUS 1
-#define ARMADA_370_ATTR_DEV_BOOTROM 0x1D
-#define ARMADA_370_TARGET_PCIE_0 4
-#define ARMADA_370_TARGET_PCIE_1 8
-
-#define ARMADA_WINDOW_8_PLUS_OFFSET 0x90
-#define ARMADA_SDRAM_ADDR_DECODING_OFFSET 0x180
-
-static const struct __initdata orion_addr_map_info
-armada_xp_addr_map_info[] = {
- /*
- * Window for the BootROM, needed for SMP on Armada XP
- */
- { 0, 0xfff00000, SZ_1M, ARMADA_XP_TARGET_DEV_BUS,
- ARMADA_XP_ATTR_DEV_BOOTROM, -1 },
- /* End marker */
- { -1, 0, 0, 0, 0, 0 },
-};
-
-static const struct __initdata orion_addr_map_info
-armada_370_addr_map_info[] = {
- /* End marker */
- { -1, 0, 0, 0, 0, 0 },
-};
-
-static struct of_device_id of_addr_decoding_controller_table[] = {
- { .compatible = "marvell,armada-addr-decoding-controller" },
- { /* end of list */ },
-};
-
-static void __iomem *
-armada_cfg_base(const struct orion_addr_map_cfg *cfg, int win)
-{
- unsigned int offset;
-
- /* The register layout is a bit annoying and the below code
- * tries to cope with it.
- * - At offset 0x0, there are the registers for the first 8
- * windows, with 4 registers of 32 bits per window (ctrl,
- * base, remap low, remap high)
- * - Then at offset 0x80, there is a hole of 0x10 bytes for
- * the internal registers base address and internal units
- * sync barrier register.
- * - Then at offset 0x90, there the registers for 12
- * windows, with only 2 registers of 32 bits per window
- * (ctrl, base).
- */
- if (win < 8)
- offset = (win << 4);
- else
- offset = ARMADA_WINDOW_8_PLUS_OFFSET + ((win - 8) << 3);
-
- return cfg->bridge_virt_base + offset;
-}
-
-static struct __initdata orion_addr_map_cfg addr_map_cfg = {
- .num_wins = 20,
- .remappable_wins = 8,
- .win_cfg_base = armada_cfg_base,
-};
-
-static int __init armada_setup_cpu_mbus(void)
-{
- struct device_node *np;
- void __iomem *mbus_unit_addr_decoding_base;
- void __iomem *sdram_addr_decoding_base;
-
- np = of_find_matching_node(NULL, of_addr_decoding_controller_table);
- if (!np)
- return -ENODEV;
-
- mbus_unit_addr_decoding_base = of_iomap(np, 0);
- BUG_ON(!mbus_unit_addr_decoding_base);
-
- sdram_addr_decoding_base =
- mbus_unit_addr_decoding_base +
- ARMADA_SDRAM_ADDR_DECODING_OFFSET;
-
- addr_map_cfg.bridge_virt_base = mbus_unit_addr_decoding_base;
-
- if (of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric"))
- addr_map_cfg.hw_io_coherency = 1;
-
- /*
- * Disable, clear and configure windows.
- */
- if (of_machine_is_compatible("marvell,armadaxp"))
- orion_config_wins(&addr_map_cfg, armada_xp_addr_map_info);
- else if (of_machine_is_compatible("marvell,armada370"))
- orion_config_wins(&addr_map_cfg, armada_370_addr_map_info);
- else {
- pr_err("Unsupported SoC\n");
- return -EINVAL;
- }
-
- /*
- * Setup MBUS dram target info.
- */
- orion_setup_cpu_mbus_target(&addr_map_cfg,
- sdram_addr_decoding_base);
- return 0;
-}
-
-/* Using a early_initcall is needed so that this initialization gets
- * done before the SMP initialization, which requires the BootROM to
- * be remapped. */
-early_initcall(armada_setup_cpu_mbus);
#include <linux/time-armada-370-xp.h>
#include <linux/clk/mvebu.h>
#include <linux/dma-mapping.h>
+#include <linux/mbus.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
void __init armada_370_xp_init_early(void)
{
+ char *mbus_soc_name;
+
/*
* Some Armada 370/XP devices allocate their coherent buffers
* from atomic context. Increase size of atomic coherent pool
* to make sure such the allocations won't fail.
*/
init_dma_coherent_pool_size(SZ_1M);
+
+ /*
+ * This initialization will be replaced by a DT-based
+ * initialization once the mvebu-mbus driver gains DT support.
+ */
+ if (of_machine_is_compatible("marvell,armada370"))
+ mbus_soc_name = "marvell,armada370-mbus";
+ else
+ mbus_soc_name = "marvell,armadaxp-mbus";
+
+ mvebu_mbus_init(mbus_soc_name,
+ ARMADA_370_XP_MBUS_WINS_BASE,
+ ARMADA_370_XP_MBUS_WINS_SIZE,
+ ARMADA_370_XP_SDRAM_WINS_BASE,
+ ARMADA_370_XP_SDRAM_WINS_SIZE);
}
static void __init armada_370_xp_dt_init(void)
projects / karo-tx-linux.git / commitdiff