Orion: orion -> orion5x rename
Do a global s/orion/orion5x/ of the Orion 5x-specific bits (i.e.
not the plat-orion bits.)
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Saeed Bishara <saeed@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c
new file mode 100644
index 0000000..6b17937
--- /dev/null
+++ b/arch/arm/mach-orion5x/addr-map.c
@@ -0,0 +1,240 @@
+/*
+ * arch/arm/mach-orion5x/addr-map.c
+ *
+ * Address map functions for Marvell Orion 5x SoCs
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.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 <asm/hardware.h>
+#include <asm/io.h>
+#include "common.h"
+
+/*
+ * The Orion has fully programable address map. There's a separate address
+ * map for each of the device _master_ interfaces, e.g. CPU, PCI, PCIE, USB,
+ * Gigabit Ethernet, DMA/XOR engines, etc. Each interface has its own
+ * address decode windows that allow it to access any of the Orion resources.
+ *
+ * CPU address decoding --
+ * Linux assumes that it is the boot loader that already setup the access to
+ * DDR and internal registers.
+ * Setup access to PCI and PCI-E IO/MEM space is issued by this file.
+ * Setup access to various devices located on the device bus interface (e.g.
+ * flashes, RTC, etc) should be issued by machine-setup.c according to
+ * specific board population (by using orion5x_setup_*_win()).
+ *
+ * Non-CPU Masters address decoding --
+ * Unlike the CPU, we setup the access from Orion's master interfaces to DDR
+ * banks only (the typical use case).
+ * Setup access for each master to DDR is issued by common.c.
+ *
+ * Note: although orion_setbits() and orion_clrbits() are not atomic
+ * no locking is necessary here since code in this file is only called
+ * at boot time when there is no concurrency issues.
+ */
+
+/*
+ * Generic Address Decode Windows bit settings
+ */
+#define TARGET_DDR 0
+#define TARGET_DEV_BUS 1
+#define TARGET_PCI 3
+#define TARGET_PCIE 4
+#define ATTR_DDR_CS(n) (((n) ==0) ? 0xe : \
+ ((n) == 1) ? 0xd : \
+ ((n) == 2) ? 0xb : \
+ ((n) == 3) ? 0x7 : 0xf)
+#define ATTR_PCIE_MEM 0x59
+#define ATTR_PCIE_IO 0x51
+#define ATTR_PCIE_WA 0x79
+#define ATTR_PCI_MEM 0x59
+#define ATTR_PCI_IO 0x51
+#define ATTR_DEV_CS0 0x1e
+#define ATTR_DEV_CS1 0x1d
+#define ATTR_DEV_CS2 0x1b
+#define ATTR_DEV_BOOT 0xf
+#define WIN_EN 1
+
+/*
+ * Helpers to get DDR bank info
+ */
+#define DDR_BASE_CS(n) ORION5X_DDR_REG(0x1500 + ((n) * 8))
+#define DDR_SIZE_CS(n) ORION5X_DDR_REG(0x1504 + ((n) * 8))
+#define DDR_MAX_CS 4
+#define DDR_REG_TO_SIZE(reg) (((reg) | 0xffffff) + 1)
+#define DDR_REG_TO_BASE(reg) ((reg) & 0xff000000)
+#define DDR_BANK_EN 1
+
+/*
+ * CPU Address Decode Windows registers
+ */
+#define CPU_WIN_CTRL(n) ORION5X_BRIDGE_REG(0x000 | ((n) << 4))
+#define CPU_WIN_BASE(n) ORION5X_BRIDGE_REG(0x004 | ((n) << 4))
+#define CPU_WIN_REMAP_LO(n) ORION5X_BRIDGE_REG(0x008 | ((n) << 4))
+#define CPU_WIN_REMAP_HI(n) ORION5X_BRIDGE_REG(0x00c | ((n) << 4))
+
+/*
+ * Gigabit Ethernet Address Decode Windows registers
+ */
+#define ETH_WIN_BASE(win) ORION5X_ETH_REG(0x200 + ((win) * 8))
+#define ETH_WIN_SIZE(win) ORION5X_ETH_REG(0x204 + ((win) * 8))
+#define ETH_WIN_REMAP(win) ORION5X_ETH_REG(0x280 + ((win) * 4))
+#define ETH_WIN_EN ORION5X_ETH_REG(0x290)
+#define ETH_WIN_PROT ORION5X_ETH_REG(0x294)
+#define ETH_MAX_WIN 6
+#define ETH_MAX_REMAP_WIN 4
+
+
+struct mbus_dram_target_info orion5x_mbus_dram_info;
+
+static int __init orion5x_cpu_win_can_remap(int win)
+{
+ u32 dev, rev;
+
+ orion5x_pcie_id(&dev, &rev);
+ if ((dev == MV88F5281_DEV_ID && win < 4)
+ || (dev == MV88F5182_DEV_ID && win < 2)
+ || (dev == MV88F5181_DEV_ID && win < 2))
+ return 1;
+
+ return 0;
+}
+
+static void __init setup_cpu_win(int win, u32 base, u32 size,
+ u8 target, u8 attr, int remap)
+{
+ orion5x_write(CPU_WIN_BASE(win), base & 0xffff0000);
+ orion5x_write(CPU_WIN_CTRL(win),
+ ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1);
+
+ if (orion5x_cpu_win_can_remap(win)) {
+ if (remap < 0)
+ remap = base;
+
+ orion5x_write(CPU_WIN_REMAP_LO(win), remap & 0xffff0000);
+ orion5x_write(CPU_WIN_REMAP_HI(win), 0);
+ }
+}
+
+void __init orion5x_setup_cpu_mbus_bridge(void)
+{
+ int i;
+ int cs;
+
+ /*
+ * First, disable and clear windows.
+ */
+ for (i = 0; i < 8; i++) {
+ orion5x_write(CPU_WIN_BASE(i), 0);
+ orion5x_write(CPU_WIN_CTRL(i), 0);
+ if (orion5x_cpu_win_can_remap(i)) {
+ orion5x_write(CPU_WIN_REMAP_LO(i), 0);
+ orion5x_write(CPU_WIN_REMAP_HI(i), 0);
+ }
+ }
+
+ /*
+ * Setup windows for PCI+PCIe IO+MEM space.
+ */
+ setup_cpu_win(0, ORION5X_PCIE_IO_PHYS_BASE, ORION5X_PCIE_IO_SIZE,
+ TARGET_PCIE, ATTR_PCIE_IO, ORION5X_PCIE_IO_BUS_BASE);
+ setup_cpu_win(1, ORION5X_PCI_IO_PHYS_BASE, ORION5X_PCI_IO_SIZE,
+ TARGET_PCI, ATTR_PCI_IO, ORION5X_PCI_IO_BUS_BASE);
+ setup_cpu_win(2, ORION5X_PCIE_MEM_PHYS_BASE, ORION5X_PCIE_MEM_SIZE,
+ TARGET_PCIE, ATTR_PCIE_MEM, -1);
+ setup_cpu_win(3, ORION5X_PCI_MEM_PHYS_BASE, ORION5X_PCI_MEM_SIZE,
+ TARGET_PCI, ATTR_PCI_MEM, -1);
+
+ /*
+ * Setup MBUS dram target info.
+ */
+ orion5x_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
+
+ for (i = 0, cs = 0; i < 4; i++) {
+ u32 base = readl(DDR_BASE_CS(i));
+ u32 size = readl(DDR_SIZE_CS(i));
+
+ /*
+ * Chip select enabled?
+ */
+ if (size & 1) {
+ struct mbus_dram_window *w;
+
+ w = &orion5x_mbus_dram_info.cs[cs++];
+ w->cs_index = i;
+ w->mbus_attr = 0xf & ~(1 << i);
+ w->base = base & 0xff000000;
+ w->size = (size | 0x00ffffff) + 1;
+ }
+ }
+ orion5x_mbus_dram_info.num_cs = cs;
+}
+
+void __init orion5x_setup_dev_boot_win(u32 base, u32 size)
+{
+ setup_cpu_win(4, base, size, TARGET_DEV_BUS, ATTR_DEV_BOOT, -1);
+}
+
+void __init orion5x_setup_dev0_win(u32 base, u32 size)
+{
+ setup_cpu_win(5, base, size, TARGET_DEV_BUS, ATTR_DEV_CS0, -1);
+}
+
+void __init orion5x_setup_dev1_win(u32 base, u32 size)
+{
+ setup_cpu_win(6, base, size, TARGET_DEV_BUS, ATTR_DEV_CS1, -1);
+}
+
+void __init orion5x_setup_dev2_win(u32 base, u32 size)
+{
+ setup_cpu_win(7, base, size, TARGET_DEV_BUS, ATTR_DEV_CS2, -1);
+}
+
+void __init orion5x_setup_pcie_wa_win(u32 base, u32 size)
+{
+ setup_cpu_win(7, base, size, TARGET_PCIE, ATTR_PCIE_WA, -1);
+}
+
+void __init orion5x_setup_eth_wins(void)
+{
+ int i;
+
+ /*
+ * First, disable and clear windows
+ */
+ for (i = 0; i < ETH_MAX_WIN; i++) {
+ orion5x_write(ETH_WIN_BASE(i), 0);
+ orion5x_write(ETH_WIN_SIZE(i), 0);
+ orion5x_setbits(ETH_WIN_EN, 1 << i);
+ orion5x_clrbits(ETH_WIN_PROT, 0x3 << (i * 2));
+ if (i < ETH_MAX_REMAP_WIN)
+ orion5x_write(ETH_WIN_REMAP(i), 0);
+ }
+
+ /*
+ * Setup windows for DDR banks.
+ */
+ for (i = 0; i < DDR_MAX_CS; i++) {
+ u32 base, size;
+ size = orion5x_read(DDR_SIZE_CS(i));
+ base = orion5x_read(DDR_BASE_CS(i));
+ if (size & DDR_BANK_EN) {
+ base = DDR_REG_TO_BASE(base);
+ size = DDR_REG_TO_SIZE(size);
+ orion5x_write(ETH_WIN_SIZE(i), (size-1) & 0xffff0000);
+ orion5x_write(ETH_WIN_BASE(i), (base & 0xffff0000) |
+ (ATTR_DDR_CS(i) << 8) |
+ TARGET_DDR);
+ orion5x_clrbits(ETH_WIN_EN, 1 << i);
+ orion5x_setbits(ETH_WIN_PROT, 0x3 << (i * 2));
+ }
+ }
+}