コード例 #1
0
void __init orion5x_setup_cpu_mbus_bridge(void)
{
	int i;
	int cs;

	/*
	 * First, disable and clear windows.
	 */
	for (i = 0; i < 8; i++) {
		writel(0, CPU_WIN_BASE(i));
		writel(0, CPU_WIN_CTRL(i));
		if (orion5x_cpu_win_can_remap(i)) {
			writel(0, CPU_WIN_REMAP_LO(i));
			writel(0, CPU_WIN_REMAP_HI(i));
		}
	}

	/*
	 * 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);
	win_alloc_count = 4;

	/*
	 * 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 & 0xffff0000;
			w->size = (size | 0x0000ffff) + 1;
		}
	}
	orion5x_mbus_dram_info.num_cs = cs;
}
コード例 #2
0
void __init loki_setup_cpu_mbus(void)
{
	int i;
	int cs;

	/*
	 * First, disable and clear windows.
	 */
	for (i = 0; i < 8; i++) {
		writel(0, CPU_WIN_BASE(i));
		writel(0, CPU_WIN_CTRL(i));
		if (i < 2) {
			writel(0, CPU_WIN_REMAP_LO(i));
			writel(0, CPU_WIN_REMAP_HI(i));
		}
	}

	/*
	 * Setup windows for PCIe IO+MEM space.
	 */
	setup_cpu_win(2, LOKI_PCIE0_MEM_PHYS_BASE, LOKI_PCIE0_MEM_SIZE,
		      TARGET_PCIE0, ATTR_PCIE_MEM, -1);
	setup_cpu_win(3, LOKI_PCIE1_MEM_PHYS_BASE, LOKI_PCIE1_MEM_SIZE,
		      TARGET_PCIE1, ATTR_PCIE_MEM, -1);

	/*
	 * Setup MBUS dram target info.
	 */
	loki_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 = &loki_mbus_dram_info.cs[cs++];
			w->cs_index = i;
			w->mbus_attr = 0xf & ~(1 << i);
			w->base = base & 0xffff0000;
			w->size = (size | 0x0000ffff) + 1;
		}
	}
	loki_mbus_dram_info.num_cs = cs;
}
コード例 #3
0
static void __init setup_cpu_win(int win, u32 base, u32 size,
				 u8 target, u8 attr, int remap)
{
	u32 ctrl;

	base &= 0xffff0000;
	ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (1 << 5) | target;

	writel(base, CPU_WIN_BASE(win));
	writel(ctrl, CPU_WIN_CTRL(win));
	if (win < 2) {
		if (remap < 0)
			remap = base;

		writel(remap & 0xffff0000, CPU_WIN_REMAP_LO(win));
		writel(0, CPU_WIN_REMAP_HI(win));
	}
}
コード例 #4
0
ファイル: addr-map.c プロジェクト: hugh-smtl/linux-2.6
static void __init setup_cpu_win(int win, u32 base, u32 size,
				 u8 target, u8 attr, int remap)
{
	if (win >= 8) {
		printk(KERN_ERR "setup_cpu_win: trying to allocate "
				"window %d\n", win);
		return;
	}

	writel(base & 0xffff0000, CPU_WIN_BASE(win));
	writel(((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1,
		CPU_WIN_CTRL(win));

	if (orion5x_cpu_win_can_remap(win)) {
		if (remap < 0)
			remap = base;

		writel(remap & 0xffff0000, CPU_WIN_REMAP_LO(win));
		writel(0, CPU_WIN_REMAP_HI(win));
	}
}