mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
653f7c4467
In commitf62782fb29("cache: l2x0: Fix write to incorrect shared-override bit") we removed writel to regs->pl310_aux_ctrl by accident. This commit restores it back. Fixes:f62782fb29("cache: l2x0: Fix write to incorrect shared-override bit") Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
78 lines
2 KiB
C
78 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2019 Intel Corporation <www.intel.com>
|
|
*/
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <dm.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/pl310.h>
|
|
|
|
static void l2c310_of_parse_and_init(struct udevice *dev)
|
|
{
|
|
u32 tag[3] = { 0, 0, 0 };
|
|
u32 saved_reg, prefetch;
|
|
struct pl310_regs *regs = (struct pl310_regs *)dev_read_addr(dev);
|
|
|
|
/* Disable the L2 Cache */
|
|
clrbits_le32(®s->pl310_ctrl, L2X0_CTRL_EN);
|
|
|
|
saved_reg = readl(®s->pl310_aux_ctrl);
|
|
if (!dev_read_u32(dev, "prefetch-data", &prefetch)) {
|
|
if (prefetch)
|
|
saved_reg |= L310_AUX_CTRL_DATA_PREFETCH_MASK;
|
|
else
|
|
saved_reg &= ~L310_AUX_CTRL_DATA_PREFETCH_MASK;
|
|
}
|
|
|
|
if (!dev_read_u32(dev, "prefetch-instr", &prefetch)) {
|
|
if (prefetch)
|
|
saved_reg |= L310_AUX_CTRL_INST_PREFETCH_MASK;
|
|
else
|
|
saved_reg &= ~L310_AUX_CTRL_INST_PREFETCH_MASK;
|
|
}
|
|
|
|
if (dev_read_bool(dev, "arm,shared-override"))
|
|
saved_reg |= L310_SHARED_ATT_OVERRIDE_ENABLE;
|
|
|
|
writel(saved_reg, ®s->pl310_aux_ctrl);
|
|
|
|
saved_reg = readl(®s->pl310_tag_latency_ctrl);
|
|
if (!dev_read_u32_array(dev, "arm,tag-latency", tag, 3))
|
|
saved_reg |= L310_LATENCY_CTRL_RD(tag[0] - 1) |
|
|
L310_LATENCY_CTRL_WR(tag[1] - 1) |
|
|
L310_LATENCY_CTRL_SETUP(tag[2] - 1);
|
|
writel(saved_reg, ®s->pl310_tag_latency_ctrl);
|
|
|
|
saved_reg = readl(®s->pl310_data_latency_ctrl);
|
|
if (!dev_read_u32_array(dev, "arm,data-latency", tag, 3))
|
|
saved_reg |= L310_LATENCY_CTRL_RD(tag[0] - 1) |
|
|
L310_LATENCY_CTRL_WR(tag[1] - 1) |
|
|
L310_LATENCY_CTRL_SETUP(tag[2] - 1);
|
|
writel(saved_reg, ®s->pl310_data_latency_ctrl);
|
|
|
|
/* Enable the L2 cache */
|
|
setbits_le32(®s->pl310_ctrl, L2X0_CTRL_EN);
|
|
}
|
|
|
|
static int l2x0_probe(struct udevice *dev)
|
|
{
|
|
l2c310_of_parse_and_init(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const struct udevice_id l2x0_ids[] = {
|
|
{ .compatible = "arm,pl310-cache" },
|
|
{}
|
|
};
|
|
|
|
U_BOOT_DRIVER(pl310_cache) = {
|
|
.name = "pl310_cache",
|
|
.id = UCLASS_CACHE,
|
|
.of_match = l2x0_ids,
|
|
.probe = l2x0_probe,
|
|
.flags = DM_FLAG_PRE_RELOC,
|
|
};
|