linux_dsm_epyc7002/arch/arm/mach-tegra/common.c
Linus Torvalds 281b05392f ARM: SoC specific updates
These changes are all specific to an soc family or the code for
 one soc. Lots of work for Tegra3 this time, but also a lot of other
 platforms. There will be another (smaller) set of soc patches later in
 the merge window for stuff that has dependencies on external trees or
 that was sent just before the merge window opened.
 
 The asoc tree added a few devices to the i.mx platform, which conflict
 with other devices added in the same place here.
 
 The tegra Makefile conflicts between a number of branches, mostly because
 of changes regarding localtimer.c, which was removed in the end.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: SoC specific updates" from Arnd Bergmann:
 "These changes are all specific to an soc family or the code for one
  soc.  Lots of work for Tegra3 this time, but also a lot of other
  platforms.  There will be another (smaller) set of soc patches later
  in the merge window for stuff that has dependencies on external trees
  or that was sent just before the merge window opened.

  The asoc tree added a few devices to the i.mx platform, which conflict
  with other devices added in the same place here.

  The tegra Makefile conflicts between a number of branches, mostly
  because of changes regarding localtimer.c, which was removed in the
  end.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fix up some trivial conflicts, including the mentioned Tegra Makefile.

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
  ARM: EXYNOS: fix cycle count for periodic mode of clock event timers
  ARM: EXYNOS: add support JPEG
  ARM: EXYNOS: Add DMC1, allow PPMU access for DMC
  ARM: SAMSUNG: Correct MIPI-CSIS io memory resource definition
  ARM: SAMSUNG: fix __init attribute on regarding s3c_set_platdata()
  ARM: SAMSUNG: Add __init attribute to samsung_bl_set()
  ARM: S5PV210: Add usb otg phy control
  ARM: S3C64XX: Add usb otg phy control
  ARM: EXYNOS: Enable l2 configuration through device tree
  ARM: EXYNOS: remove useless code to save/restore L2
  ARM: EXYNOS: save L2 settings during bootup
  ARM: S5P: add L2 early resume code
  ARM: EXYNOS: Add support AFTR mode on EXYNOS4210
  ARM: mx35: Setup the AIPS registers
  ARM: mx5: Use common function for configuring AIPS
  ARM: mx3: Setup AIPS registers
  ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI
  ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE
  ARM: imx: update imx_v6_v7_defconfig
  ARM: tegra: Demote EMC clock inconsistency BUG to WARN
  ...
2012-03-27 16:14:44 -07:00

111 lines
2.7 KiB
C

/*
* arch/arm/mach-tegra/common.c
*
* Copyright (C) 2010 Google, Inc.
*
* Author:
* Colin Cross <ccross@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/init.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/of_irq.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/gic.h>
#include <mach/iomap.h>
#include "board.h"
#include "clock.h"
#include "fuse.h"
#ifdef CONFIG_OF
static const struct of_device_id tegra_dt_irq_match[] __initconst = {
{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init },
{ }
};
void __init tegra_dt_init_irq(void)
{
tegra_init_irq();
of_irq_init(tegra_dt_irq_match);
}
#endif
void tegra_assert_system_reset(char mode, const char *cmd)
{
void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0);
u32 reg;
reg = readl_relaxed(reset);
reg |= 0x10;
writel_relaxed(reg, reset);
}
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = {
/* name parent rate enabled */
{ "clk_m", NULL, 0, true },
{ "pll_p", "clk_m", 216000000, true },
{ "pll_p_out1", "pll_p", 28800000, true },
{ "pll_p_out2", "pll_p", 48000000, true },
{ "pll_p_out3", "pll_p", 72000000, true },
{ "pll_p_out4", "pll_p", 108000000, true },
{ "sclk", "pll_p_out4", 108000000, true },
{ "hclk", "sclk", 108000000, true },
{ "pclk", "hclk", 54000000, true },
{ "csite", NULL, 0, true },
{ "emc", NULL, 0, true },
{ "cpu", NULL, 0, true },
{ NULL, NULL, 0, 0},
};
#endif
static void __init tegra_init_cache(u32 tag_latency, u32 data_latency)
{
#ifdef CONFIG_CACHE_L2X0
void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
u32 aux_ctrl, cache_type;
writel_relaxed(tag_latency, p + L2X0_TAG_LATENCY_CTRL);
writel_relaxed(data_latency, p + L2X0_DATA_LATENCY_CTRL);
cache_type = readl(p + L2X0_CACHE_TYPE);
aux_ctrl = (cache_type & 0x700) << (17-8);
aux_ctrl |= 0x6C000001;
l2x0_init(p, aux_ctrl, 0x8200c3fe);
#endif
}
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
void __init tegra20_init_early(void)
{
tegra_init_fuse();
tegra2_init_clocks();
tegra_clk_init_from_table(tegra20_clk_init_table);
tegra_init_cache(0x331, 0x441);
}
#endif
#ifdef CONFIG_ARCH_TEGRA_3x_SOC
void __init tegra30_init_early(void)
{
tegra30_init_clocks();
tegra_init_cache(0x441, 0x551);
}
#endif