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Diffstat (limited to 'arch/arm/mach-orion/addr-map.c')
-rw-r--r--arch/arm/mach-orion/addr-map.c490
1 files changed, 0 insertions, 490 deletions
diff --git a/arch/arm/mach-orion/addr-map.c b/arch/arm/mach-orion/addr-map.c
deleted file mode 100644
index 58cc3c0333b6..000000000000
--- a/arch/arm/mach-orion/addr-map.c
+++ /dev/null
@@ -1,490 +0,0 @@
-/*
- * arch/arm/mach-orion/addr-map.c
- *
- * Address map functions for Marvell Orion System On Chip
- *
- * 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 <asm/hardware.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 core.c.
- * 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 orion_setup_cpu_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_PCI 3
-#define TARGET_PCIE 4
-#define TARGET_DEV_BUS 1
-#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_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 banks info
- */
-#define DDR_BASE_CS(n) ORION_DDR_REG(0x1500 + ((n) * 8))
-#define DDR_SIZE_CS(n) ORION_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) ORION_BRIDGE_REG(0x000 | ((n) << 4))
-#define CPU_WIN_BASE(n) ORION_BRIDGE_REG(0x004 | ((n) << 4))
-#define CPU_WIN_REMAP_LO(n) ORION_BRIDGE_REG(0x008 | ((n) << 4))
-#define CPU_WIN_REMAP_HI(n) ORION_BRIDGE_REG(0x00c | ((n) << 4))
-#define CPU_MAX_WIN 8
-
-/*
- * Use this CPU address decode windows allocation
- */
-#define CPU_WIN_PCIE_IO 0
-#define CPU_WIN_PCI_IO 1
-#define CPU_WIN_PCIE_MEM 2
-#define CPU_WIN_PCI_MEM 3
-#define CPU_WIN_DEV_BOOT 4
-#define CPU_WIN_DEV_CS0 5
-#define CPU_WIN_DEV_CS1 6
-#define CPU_WIN_DEV_CS2 7
-
-/*
- * PCIE Address Decode Windows registers
- */
-#define PCIE_BAR_CTRL(n) ORION_PCIE_REG(0x1804 + ((n - 1) * 4))
-#define PCIE_BAR_LO(n) ORION_PCIE_REG(0x0010 + ((n) * 8))
-#define PCIE_BAR_HI(n) ORION_PCIE_REG(0x0014 + ((n) * 8))
-#define PCIE_WIN_CTRL(n) (((n) < 5) ? \
- ORION_PCIE_REG(0x1820 + ((n) << 4)) : \
- ORION_PCIE_REG(0x1880))
-#define PCIE_WIN_BASE(n) (((n) < 5) ? \
- ORION_PCIE_REG(0x1824 + ((n) << 4)) : \
- ORION_PCIE_REG(0x1884))
-#define PCIE_WIN_REMAP(n) (((n) < 5) ? \
- ORION_PCIE_REG(0x182c + ((n) << 4)) : \
- ORION_PCIE_REG(0x188c))
-#define PCIE_DEFWIN_CTRL ORION_PCIE_REG(0x18b0)
-#define PCIE_EXPROM_WIN_CTRL ORION_PCIE_REG(0x18c0)
-#define PCIE_EXPROM_WIN_REMP ORION_PCIE_REG(0x18c4)
-#define PCIE_MAX_BARS 3
-#define PCIE_MAX_WINS 6
-
-/*
- * Use PCIE BAR '1' for all DDR banks
- */
-#define PCIE_DRAM_BAR 1
-
-/*
- * PCI Address Decode Windows registers
- */
-#define PCI_BAR_SIZE_DDR_CS(n) (((n) == 0) ? ORION_PCI_REG(0xc08) : \
- ((n) == 1) ? ORION_PCI_REG(0xd08) : \
- ((n) == 2) ? ORION_PCI_REG(0xc0c) : \
- ((n) == 3) ? ORION_PCI_REG(0xd0c) : 0)
-#define PCI_BAR_REMAP_DDR_CS(n) (((n) ==0) ? ORION_PCI_REG(0xc48) : \
- ((n) == 1) ? ORION_PCI_REG(0xd48) : \
- ((n) == 2) ? ORION_PCI_REG(0xc4c) : \
- ((n) == 3) ? ORION_PCI_REG(0xd4c) : 0)
-#define PCI_BAR_ENABLE ORION_PCI_REG(0xc3c)
-#define PCI_CTRL_BASE_LO(n) ORION_PCI_REG(0x1e00 | ((n) << 4))
-#define PCI_CTRL_BASE_HI(n) ORION_PCI_REG(0x1e04 | ((n) << 4))
-#define PCI_CTRL_SIZE(n) ORION_PCI_REG(0x1e08 | ((n) << 4))
-#define PCI_ADDR_DECODE_CTRL ORION_PCI_REG(0xd3c)
-
-/*
- * PCI configuration heleprs for BAR settings
- */
-#define PCI_CONF_FUNC_BAR_CS(n) ((n) >> 1)
-#define PCI_CONF_REG_BAR_LO_CS(n) (((n) & 1) ? 0x18 : 0x10)
-#define PCI_CONF_REG_BAR_HI_CS(n) (((n) & 1) ? 0x1c : 0x14)
-
-/*
- * Gigabit Ethernet Address Decode Windows registers
- */
-#define ETH_WIN_BASE(win) ORION_ETH_REG(0x200 + ((win) * 8))
-#define ETH_WIN_SIZE(win) ORION_ETH_REG(0x204 + ((win) * 8))
-#define ETH_WIN_REMAP(win) ORION_ETH_REG(0x280 + ((win) * 4))
-#define ETH_WIN_EN ORION_ETH_REG(0x290)
-#define ETH_WIN_PROT ORION_ETH_REG(0x294)
-#define ETH_MAX_WIN 6
-#define ETH_MAX_REMAP_WIN 4
-
-/*
- * USB Address Decode Windows registers
- */
-#define USB_WIN_CTRL(i, w) ((i == 0) ? ORION_USB0_REG(0x320 + ((w) << 4)) \
- : ORION_USB1_REG(0x320 + ((w) << 4)))
-#define USB_WIN_BASE(i, w) ((i == 0) ? ORION_USB0_REG(0x324 + ((w) << 4)) \
- : ORION_USB1_REG(0x324 + ((w) << 4)))
-#define USB_MAX_WIN 4
-
-/*
- * SATA Address Decode Windows registers
- */
-#define SATA_WIN_CTRL(win) ORION_SATA_REG(0x30 + ((win) * 0x10))
-#define SATA_WIN_BASE(win) ORION_SATA_REG(0x34 + ((win) * 0x10))
-#define SATA_MAX_WIN 4
-
-static int __init orion_cpu_win_can_remap(u32 win)
-{
- u32 dev, rev;
-
- orion_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;
-}
-
-void __init orion_setup_cpu_win(enum orion_target target, u32 base, u32 size, int remap)
-{
- u32 win, attr, ctrl;
-
- switch (target) {
- case ORION_PCIE_IO:
- target = TARGET_PCIE;
- attr = ATTR_PCIE_IO;
- win = CPU_WIN_PCIE_IO;
- break;
- case ORION_PCI_IO:
- target = TARGET_PCI;
- attr = ATTR_PCI_IO;
- win = CPU_WIN_PCI_IO;
- break;
- case ORION_PCIE_MEM:
- target = TARGET_PCIE;
- attr = ATTR_PCIE_MEM;
- win = CPU_WIN_PCIE_MEM;
- break;
- case ORION_PCI_MEM:
- target = TARGET_PCI;
- attr = ATTR_PCI_MEM;
- win = CPU_WIN_PCI_MEM;
- break;
- case ORION_DEV_BOOT:
- target = TARGET_DEV_BUS;
- attr = ATTR_DEV_BOOT;
- win = CPU_WIN_DEV_BOOT;
- break;
- case ORION_DEV0:
- target = TARGET_DEV_BUS;
- attr = ATTR_DEV_CS0;
- win = CPU_WIN_DEV_CS0;
- break;
- case ORION_DEV1:
- target = TARGET_DEV_BUS;
- attr = ATTR_DEV_CS1;
- win = CPU_WIN_DEV_CS1;
- break;
- case ORION_DEV2:
- target = TARGET_DEV_BUS;
- attr = ATTR_DEV_CS2;
- win = CPU_WIN_DEV_CS2;
- break;
- case ORION_DDR:
- case ORION_REGS:
- /*
- * Must be mapped by bootloader.
- */
- default:
- target = attr = win = -1;
- BUG();
- }
-
- base &= 0xffff0000;
- ctrl = (((size - 1) & 0xffff0000) | (attr << 8) |
- (target << 4) | WIN_EN);
-
- orion_write(CPU_WIN_BASE(win), base);
- orion_write(CPU_WIN_CTRL(win), ctrl);
-
- if (orion_cpu_win_can_remap(win)) {
- if (remap >= 0) {
- orion_write(CPU_WIN_REMAP_LO(win), remap & 0xffff0000);
- orion_write(CPU_WIN_REMAP_HI(win), 0);
- } else {
- orion_write(CPU_WIN_REMAP_LO(win), base);
- orion_write(CPU_WIN_REMAP_HI(win), 0);
- }
- }
-}
-
-void __init orion_setup_cpu_wins(void)
-{
- int i;
-
- /*
- * First, disable and clear windows
- */
- for (i = 0; i < CPU_MAX_WIN; i++) {
- orion_write(CPU_WIN_BASE(i), 0);
- orion_write(CPU_WIN_CTRL(i), 0);
- if (orion_cpu_win_can_remap(i)) {
- orion_write(CPU_WIN_REMAP_LO(i), 0);
- orion_write(CPU_WIN_REMAP_HI(i), 0);
- }
- }
-
- /*
- * Setup windows for PCI+PCIe IO+MEM space.
- */
- orion_setup_cpu_win(ORION_PCIE_IO, ORION_PCIE_IO_PHYS_BASE,
- ORION_PCIE_IO_SIZE, ORION_PCIE_IO_BUS_BASE);
- orion_setup_cpu_win(ORION_PCI_IO, ORION_PCI_IO_PHYS_BASE,
- ORION_PCI_IO_SIZE, ORION_PCI_IO_BUS_BASE);
- orion_setup_cpu_win(ORION_PCIE_MEM, ORION_PCIE_MEM_PHYS_BASE,
- ORION_PCIE_MEM_SIZE, -1);
- orion_setup_cpu_win(ORION_PCI_MEM, ORION_PCI_MEM_PHYS_BASE,
- ORION_PCI_MEM_SIZE, -1);
-}
-
-/*
- * Setup PCIE BARs and Address Decode Wins:
- * BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks
- * WIN[0-3] -> DRAM bank[0-3]
- */
-void __init orion_setup_pcie_wins(void)
-{
- u32 base, size, i;
-
- /*
- * First, disable and clear BARs and windows
- */
- for (i = 1; i < PCIE_MAX_BARS; i++) {
- orion_write(PCIE_BAR_CTRL(i), 0);
- orion_write(PCIE_BAR_LO(i), 0);
- orion_write(PCIE_BAR_HI(i), 0);
- }
-
- for (i = 0; i < PCIE_MAX_WINS; i++) {
- orion_write(PCIE_WIN_CTRL(i), 0);
- orion_write(PCIE_WIN_BASE(i), 0);
- orion_write(PCIE_WIN_REMAP(i), 0);
- }
-
- /*
- * Setup windows for DDR banks. Count total DDR size on the fly.
- */
- base = DDR_REG_TO_BASE(orion_read(DDR_BASE_CS(0)));
- size = 0;
- for (i = 0; i < DDR_MAX_CS; i++) {
- u32 bank_base, bank_size;
- bank_size = orion_read(DDR_SIZE_CS(i));
- bank_base = orion_read(DDR_BASE_CS(i));
- if (bank_size & DDR_BANK_EN) {
- bank_size = DDR_REG_TO_SIZE(bank_size);
- bank_base = DDR_REG_TO_BASE(bank_base);
- orion_write(PCIE_WIN_BASE(i), bank_base & 0xffff0000);
- orion_write(PCIE_WIN_REMAP(i), 0);
- orion_write(PCIE_WIN_CTRL(i),
- ((bank_size-1) & 0xffff0000) |
- (ATTR_DDR_CS(i) << 8) |
- (TARGET_DDR << 4) |
- (PCIE_DRAM_BAR << 1) | WIN_EN);
- size += bank_size;
- }
- }
-
- /*
- * Setup BAR[1] to all DRAM banks
- */
- orion_write(PCIE_BAR_LO(PCIE_DRAM_BAR), base & 0xffff0000);
- orion_write(PCIE_BAR_HI(PCIE_DRAM_BAR), 0);
- orion_write(PCIE_BAR_CTRL(PCIE_DRAM_BAR),
- ((size - 1) & 0xffff0000) | WIN_EN);
-}
-
-void __init orion_setup_pci_wins(void)
-{
- u32 base, size, i;
-
- /*
- * First, disable windows
- */
- orion_write(PCI_BAR_ENABLE, 0xffffffff);
-
- /*
- * Setup windows for DDR banks.
- */
- for (i = 0; i < DDR_MAX_CS; i++) {
- base = orion_read(DDR_BASE_CS(i));
- size = orion_read(DDR_SIZE_CS(i));
- if (size & DDR_BANK_EN) {
- u32 bus, dev, func, reg, val;
- size = DDR_REG_TO_SIZE(size);
- base = DDR_REG_TO_BASE(base);
- bus = orion_pci_local_bus_nr();
- dev = orion_pci_local_dev_nr();
- func = PCI_CONF_FUNC_BAR_CS(i);
- reg = PCI_CONF_REG_BAR_LO_CS(i);
- orion_pci_hw_rd_conf(bus, dev, func, reg, 4, &val);
- orion_pci_hw_wr_conf(bus, dev, func, reg, 4,
- (base & 0xfffff000) | (val & 0xfff));
- reg = PCI_CONF_REG_BAR_HI_CS(i);
- orion_pci_hw_wr_conf(bus, dev, func, reg, 4, 0);
- orion_write(PCI_BAR_SIZE_DDR_CS(i),
- (size - 1) & 0xfffff000);
- orion_write(PCI_BAR_REMAP_DDR_CS(i),
- base & 0xfffff000);
- orion_clrbits(PCI_BAR_ENABLE, (1 << i));
- }
- }
-
- /*
- * Disable automatic update of address remaping when writing to BARs
- */
- orion_setbits(PCI_ADDR_DECODE_CTRL, 1);
-}
-
-void __init orion_setup_usb_wins(void)
-{
- int i;
- u32 usb_if, dev, rev;
- u32 max_usb_if = 1;
-
- orion_pcie_id(&dev, &rev);
- if (dev == MV88F5182_DEV_ID)
- max_usb_if = 2;
-
- for (usb_if = 0; usb_if < max_usb_if; usb_if++) {
- /*
- * First, disable and clear windows
- */
- for (i = 0; i < USB_MAX_WIN; i++) {
- orion_write(USB_WIN_BASE(usb_if, i), 0);
- orion_write(USB_WIN_CTRL(usb_if, i), 0);
- }
-
- /*
- * Setup windows for DDR banks.
- */
- for (i = 0; i < DDR_MAX_CS; i++) {
- u32 base, size;
- size = orion_read(DDR_SIZE_CS(i));
- base = orion_read(DDR_BASE_CS(i));
- if (size & DDR_BANK_EN) {
- base = DDR_REG_TO_BASE(base);
- size = DDR_REG_TO_SIZE(size);
- orion_write(USB_WIN_CTRL(usb_if, i),
- ((size-1) & 0xffff0000) |
- (ATTR_DDR_CS(i) << 8) |
- (TARGET_DDR << 4) | WIN_EN);
- orion_write(USB_WIN_BASE(usb_if, i),
- base & 0xffff0000);
- }
- }
- }
-}
-
-void __init orion_setup_eth_wins(void)
-{
- int i;
-
- /*
- * First, disable and clear windows
- */
- for (i = 0; i < ETH_MAX_WIN; i++) {
- orion_write(ETH_WIN_BASE(i), 0);
- orion_write(ETH_WIN_SIZE(i), 0);
- orion_setbits(ETH_WIN_EN, 1 << i);
- orion_clrbits(ETH_WIN_PROT, 0x3 << (i * 2));
- if (i < ETH_MAX_REMAP_WIN)
- orion_write(ETH_WIN_REMAP(i), 0);
- }
-
- /*
- * Setup windows for DDR banks.
- */
- for (i = 0; i < DDR_MAX_CS; i++) {
- u32 base, size;
- size = orion_read(DDR_SIZE_CS(i));
- base = orion_read(DDR_BASE_CS(i));
- if (size & DDR_BANK_EN) {
- base = DDR_REG_TO_BASE(base);
- size = DDR_REG_TO_SIZE(size);
- orion_write(ETH_WIN_SIZE(i), (size-1) & 0xffff0000);
- orion_write(ETH_WIN_BASE(i), (base & 0xffff0000) |
- (ATTR_DDR_CS(i) << 8) |
- TARGET_DDR);
- orion_clrbits(ETH_WIN_EN, 1 << i);
- orion_setbits(ETH_WIN_PROT, 0x3 << (i * 2));
- }
- }
-}
-
-void __init orion_setup_sata_wins(void)
-{
- int i;
-
- /*
- * First, disable and clear windows
- */
- for (i = 0; i < SATA_MAX_WIN; i++) {
- orion_write(SATA_WIN_BASE(i), 0);
- orion_write(SATA_WIN_CTRL(i), 0);
- }
-
- /*
- * Setup windows for DDR banks.
- */
- for (i = 0; i < DDR_MAX_CS; i++) {
- u32 base, size;
- size = orion_read(DDR_SIZE_CS(i));
- base = orion_read(DDR_BASE_CS(i));
- if (size & DDR_BANK_EN) {
- base = DDR_REG_TO_BASE(base);
- size = DDR_REG_TO_SIZE(size);
- orion_write(SATA_WIN_CTRL(i),
- ((size-1) & 0xffff0000) |
- (ATTR_DDR_CS(i) << 8) |
- (TARGET_DDR << 4) | WIN_EN);
- orion_write(SATA_WIN_BASE(i),
- base & 0xffff0000);
- }
- }
-}
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