* 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 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 orion_setup_cpu_win()).
+ * specific board population (by using orion_setup_*_win()).
*
* Non-CPU Masters address decoding --
* Unlike the CPU, we setup the access from Orion's master interfaces to DDR
((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 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
/*
* Gigabit Ethernet Address Decode Windows registers
struct mbus_dram_target_info orion_mbus_dram_info;
-static int __init orion_cpu_win_can_remap(u32 win)
+static int __init orion_cpu_win_can_remap(int win)
{
u32 dev, rev;
return 0;
}
-void __init orion_setup_cpu_win(enum orion_target target, u32 base, u32 size, int remap)
+static void __init setup_cpu_win(int win, u32 base, u32 size,
+ u8 target, u8 attr, 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);
+ orion_write(CPU_WIN_BASE(win), base & 0xffff0000);
+ orion_write(CPU_WIN_CTRL(win),
+ ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1);
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);
- }
+ if (remap < 0)
+ remap = base;
+
+ orion_write(CPU_WIN_REMAP_LO(win), remap & 0xffff0000);
+ orion_write(CPU_WIN_REMAP_HI(win), 0);
}
}
-void __init orion_setup_cpu_wins(void)
+void __init orion_setup_cpu_mbus_bridge(void)
{
int i;
int cs;
/*
- * First, disable and clear windows
+ * First, disable and clear windows.
*/
- for (i = 0; i < CPU_MAX_WIN; i++) {
+ for (i = 0; i < 8; i++) {
orion_write(CPU_WIN_BASE(i), 0);
orion_write(CPU_WIN_CTRL(i), 0);
if (orion_cpu_win_can_remap(i)) {
/*
* 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_cpu_win(0, ORION_PCIE_IO_PHYS_BASE, ORION_PCIE_IO_SIZE,
+ TARGET_PCIE, ATTR_PCIE_IO, ORION_PCIE_IO_BUS_BASE);
+ setup_cpu_win(1, ORION_PCI_IO_PHYS_BASE, ORION_PCI_IO_SIZE,
+ TARGET_PCI, ATTR_PCI_IO, ORION_PCI_IO_BUS_BASE);
+ setup_cpu_win(2, ORION_PCIE_MEM_PHYS_BASE, ORION_PCIE_MEM_SIZE,
+ TARGET_PCIE, ATTR_PCIE_MEM, -1);
+ setup_cpu_win(3, ORION_PCI_MEM_PHYS_BASE, ORION_PCI_MEM_SIZE,
+ TARGET_PCI, ATTR_PCI_MEM, -1);
/*
* Setup MBUS dram target info.
orion_mbus_dram_info.num_cs = cs;
}
+void __init orion_setup_dev_boot_win(u32 base, u32 size)
+{
+ setup_cpu_win(4, base, size, TARGET_DEV_BUS, ATTR_DEV_BOOT, -1);
+}
+
+void __init orion_setup_dev0_win(u32 base, u32 size)
+{
+ setup_cpu_win(5, base, size, TARGET_DEV_BUS, ATTR_DEV_CS0, -1);
+}
+
+void __init orion_setup_dev1_win(u32 base, u32 size)
+{
+ setup_cpu_win(6, base, size, TARGET_DEV_BUS, ATTR_DEV_CS1, -1);
+}
+
+void __init orion_setup_dev2_win(u32 base, u32 size)
+{
+ setup_cpu_win(7, base, size, TARGET_DEV_BUS, ATTR_DEV_CS2, -1);
+}
+
+void __init orion_setup_pcie_wa_win(u32 base, u32 size)
+{
+ setup_cpu_win(7, base, size, TARGET_PCIE, ATTR_PCIE_WA, -1);
+}
+
void __init orion_setup_eth_wins(void)
{
int i;
projects / users / dwmw2 / linux.git / commitdiff