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Diffstat (limited to 'arch/arm/mach-kirkwood/cpu.c')
-rw-r--r--arch/arm/mach-kirkwood/cpu.c74
1 files changed, 18 insertions, 56 deletions
diff --git a/arch/arm/mach-kirkwood/cpu.c b/arch/arm/mach-kirkwood/cpu.c
index d54de53f31..8f8e300385 100644
--- a/arch/arm/mach-kirkwood/cpu.c
+++ b/arch/arm/mach-kirkwood/cpu.c
@@ -46,69 +46,31 @@ unsigned int kw_winctrl_calcsize(unsigned int sizeval)
return (0x0000ffff & j);
}
-/*
- * kw_config_adr_windows - Configure address Windows
- *
- * There are 8 address windows supported by Kirkwood Soc to addess different
- * devices. Each window can be configured for size, BAR and remap addr
- * Below configuration is standard for most of the cases
- *
- * If remap function not used, remap_lo must be set as base
- *
- * Reference Documentation:
- * Mbus-L to Mbus Bridge Registers Configuration.
- * (Sec 25.1 and 25.3 of Datasheet)
- */
-int kw_config_adr_windows(void)
-{
- struct kwwin_registers *winregs =
- (struct kwwin_registers *)KW_CPU_WIN_BASE;
-
+static struct mbus_win windows[] = {
/* Window 0: PCIE MEM address space */
- writel(KWCPU_WIN_CTRL_DATA(1024 * 1024 * 256, KWCPU_TARGET_PCIE,
- KWCPU_ATTR_PCIE_MEM, KWCPU_WIN_ENABLE), &winregs[0].ctrl);
-
- writel(KW_DEFADR_PCI_MEM, &winregs[0].base);
- writel(KW_DEFADR_PCI_MEM, &winregs[0].remap_lo);
- writel(0x0, &winregs[0].remap_hi);
+ { KW_DEFADR_PCI_MEM, 1024 * 1024 * 256,
+ KWCPU_TARGET_PCIE, KWCPU_ATTR_PCIE_MEM },
/* Window 1: PCIE IO address space */
- writel(KWCPU_WIN_CTRL_DATA(1024 * 64, KWCPU_TARGET_PCIE,
- KWCPU_ATTR_PCIE_IO, KWCPU_WIN_ENABLE), &winregs[1].ctrl);
- writel(KW_DEFADR_PCI_IO, &winregs[1].base);
- writel(KW_DEFADR_PCI_IO_REMAP, &winregs[1].remap_lo);
- writel(0x0, &winregs[1].remap_hi);
+ { KW_DEFADR_PCI_IO, 1024 * 64,
+ KWCPU_TARGET_PCIE, KWCPU_ATTR_PCIE_IO },
/* Window 2: NAND Flash address space */
- writel(KWCPU_WIN_CTRL_DATA(1024 * 1024 * 128, KWCPU_TARGET_MEMORY,
- KWCPU_ATTR_NANDFLASH, KWCPU_WIN_ENABLE), &winregs[2].ctrl);
- writel(KW_DEFADR_NANDF, &winregs[2].base);
- writel(KW_DEFADR_NANDF, &winregs[2].remap_lo);
- writel(0x0, &winregs[2].remap_hi);
+ { KW_DEFADR_NANDF, 1024 * 1024 * 128,
+ KWCPU_TARGET_MEMORY, KWCPU_ATTR_NANDFLASH },
/* Window 3: SPI Flash address space */
- writel(KWCPU_WIN_CTRL_DATA(1024 * 1024 * 128, KWCPU_TARGET_MEMORY,
- KWCPU_ATTR_SPIFLASH, KWCPU_WIN_ENABLE), &winregs[3].ctrl);
- writel(KW_DEFADR_SPIF, &winregs[3].base);
- writel(KW_DEFADR_SPIF, &winregs[3].remap_lo);
- writel(0x0, &winregs[3].remap_hi);
+ { KW_DEFADR_SPIF, 1024 * 1024 * 128,
+ KWCPU_TARGET_MEMORY, KWCPU_ATTR_SPIFLASH },
/* Window 4: BOOT Memory address space */
- writel(KWCPU_WIN_CTRL_DATA(1024 * 1024 * 128, KWCPU_TARGET_MEMORY,
- KWCPU_ATTR_BOOTROM, KWCPU_WIN_ENABLE), &winregs[4].ctrl);
- writel(KW_DEFADR_BOOTROM, &winregs[4].base);
+ { KW_DEFADR_BOOTROM, 1024 * 1024 * 128,
+ KWCPU_TARGET_MEMORY, KWCPU_ATTR_BOOTROM },
/* Window 5: Security SRAM address space */
- writel(KWCPU_WIN_CTRL_DATA(1024 * 64, KWCPU_TARGET_SASRAM,
- KWCPU_ATTR_SASRAM, KWCPU_WIN_ENABLE), &winregs[5].ctrl);
- writel(KW_DEFADR_SASRAM, &winregs[5].base);
-
- /* Window 6-7: Disabled */
- writel(KWCPU_WIN_DISABLE, &winregs[6].ctrl);
- writel(KWCPU_WIN_DISABLE, &winregs[7].ctrl);
-
- return 0;
-}
+ { KW_DEFADR_SASRAM, 1024 * 64,
+ KWCPU_TARGET_SASRAM, KWCPU_ATTR_SASRAM },
+};
/*
* SYSRSTn Duration Counter Support
@@ -221,15 +183,13 @@ int arch_cpu_init(void)
struct kwcpu_registers *cpureg =
(struct kwcpu_registers *)KW_CPU_REG_BASE;
- /* Linux expects` the internal registers to be at 0xf1000000 */
+ /* Linux expects the internal registers to be at 0xf1000000 */
writel(KW_REGS_PHY_BASE, KW_OFFSET_REG);
/* Enable and invalidate L2 cache in write through mode */
writel(readl(&cpureg->l2_cfg) | 0x18, &cpureg->l2_cfg);
invalidate_l2_cache();
- kw_config_adr_windows();
-
#ifdef CONFIG_KIRKWOOD_RGMII_PAD_1V8
/*
* Configures the I/O voltage of the pads connected to Egigabit
@@ -291,11 +251,13 @@ int arch_misc_init(void)
temp |= (1 << 22);
writefr_extra_feature_reg(temp);
- icache_enable();
/* Change reset vector to address 0x0 */
temp = get_cr();
set_cr(temp & ~CR_V);
+ /* Configure mbus windows */
+ mvebu_mbus_probe(windows, ARRAY_SIZE(windows));
+
/* checks and execute resset to factory event */
kw_sysrst_check();