ARM: CSR: call l2x0_of_init to init L2 cache of SiRFprimaII
Cc: Rob Herring <robherring2@gmail.com> Signed-off-by: Barry Song <Baohua.Song@csr.com>
This commit is contained in:
Родитель
1e11bec9b0
Коммит
917d853564
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@ -39,9 +39,12 @@
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ranges = <0x40000000 0x40000000 0x80000000>;
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ranges = <0x40000000 0x40000000 0x80000000>;
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l2-cache-controller@80040000 {
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l2-cache-controller@80040000 {
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compatible = "arm,pl310-cache";
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compatible = "arm,pl310-cache", "sirf,prima2-pl310-cache";
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reg = <0x80040000 0x1000>;
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reg = <0x80040000 0x1000>;
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interrupts = <59>;
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interrupts = <59>;
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arm,tag-latency = <1 1 1>;
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arm,data-latency = <1 1 1>;
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arm,filter-ranges = <0 0x40000000>;
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};
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};
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intc: interrupt-controller@80020000 {
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intc: interrupt-controller@80020000 {
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@ -8,52 +8,24 @@
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#include <linux/init.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/errno.h>
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#include <linux/of.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <mach/memory.h>
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#define L2X0_ADDR_FILTERING_START 0xC00
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static struct of_device_id prima2_l2x0_ids[] = {
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#define L2X0_ADDR_FILTERING_END 0xC04
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{ .compatible = "sirf,prima2-pl310-cache" },
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{},
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static struct of_device_id l2x_ids[] = {
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{ .compatible = "arm,pl310-cache" },
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};
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};
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static int __init sirfsoc_of_l2x_init(void)
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static int __init sirfsoc_l2x0_init(void)
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{
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{
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struct device_node *np;
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struct device_node *np;
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void __iomem *sirfsoc_l2x_base;
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np = of_find_matching_node(NULL, l2x_ids);
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np = of_find_matching_node(NULL, prima2_l2x0_ids);
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if (!np)
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if (np) {
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panic("unable to find compatible l2x node in dtb\n");
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pr_info("Initializing prima2 L2 cache\n");
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return l2x0_of_init(0x40000, 0);
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sirfsoc_l2x_base = of_iomap(np, 0);
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if (!sirfsoc_l2x_base)
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panic("unable to map l2x cpu registers\n");
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of_node_put(np);
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if (!(readl_relaxed(sirfsoc_l2x_base + L2X0_CTRL) & 1)) {
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/*
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* set the physical memory windows L2 cache will cover
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*/
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writel_relaxed(PLAT_PHYS_OFFSET + 1024 * 1024 * 1024,
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sirfsoc_l2x_base + L2X0_ADDR_FILTERING_END);
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writel_relaxed(PLAT_PHYS_OFFSET | 0x1,
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sirfsoc_l2x_base + L2X0_ADDR_FILTERING_START);
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writel_relaxed(0,
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sirfsoc_l2x_base + L2X0_TAG_LATENCY_CTRL);
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writel_relaxed(0,
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sirfsoc_l2x_base + L2X0_DATA_LATENCY_CTRL);
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}
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}
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l2x0_init((void __iomem *)sirfsoc_l2x_base, 0x00040000,
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0x00000000);
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return 0;
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return 0;
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}
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}
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early_initcall(sirfsoc_of_l2x_init);
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early_initcall(sirfsoc_l2x0_init);
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