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authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-20 14:37:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-20 14:37:22 -0700
commite88fa1b8b00a947299e2415e819301fa52037cf4 (patch)
treec16dc012450345b52e2a8fa2562f3470e2b3c546 /arch
parentdae0b74eb7abd7d5c7572414b0c8f91c2dab63c0 (diff)
parent809683ee060de5ea45294d465dc242dee1ff189f (diff)
Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Arnd Bergmann: "A few simple cleanups across multiple platforms, not much standing out: - lpc32xx removes its private implementation of the clk API, after generic code was merged in 4.5 - all unused Makefile.boot files get removed - a number of simplifications for shmobile - asm/clkdev.h gets replaced with the asm-generic version after all mach/clkdev.h implementations are gone" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: shmobile: Kconfig: Get rid of old comment ARM: shmobile: Consolidate SCU mapping code arm: lpc32xx: remove direct control of GPIOs from shared mach file arm: lpc32xx: remove selected HAVE_IDE arm: lpc32xx: switch to common clock framework ARM: Use generic clkdev.h header ARM: plat-versatile: Remove unused clock.c file ARM: netx: remove redundant "depends on ARCH_NETX" ARM: integrator: remove redundant select in Kconfig ARM: drop unused Makefile.boot of Multiplatform SoCs ARM: mvebu: add missing of_node_put() ARM: shmobile: r8a7779: Remove remainings of removed SCU boot setup code ARM: shmobile: Typo s/MIPDR/MPIDR/ ARM: shmobile: Add includes providing forward declarations ARM: shmobile: rcar-gen2: Make rcar_gen2_dma_contiguous static ARM: mv78xx0: use "depends on" instead of "if" after prompt
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/Kconfig4
-rw-r--r--arch/arm/include/asm/Kbuild1
-rw-r--r--arch/arm/include/asm/clkdev.h31
-rw-r--r--arch/arm/mach-cns3xxx/Makefile.boot3
-rw-r--r--arch/arm/mach-exynos/Makefile.boot2
-rw-r--r--arch/arm/mach-integrator/Kconfig6
-rw-r--r--arch/arm/mach-integrator/Makefile.boot4
-rw-r--r--arch/arm/mach-keystone/Makefile.boot1
-rw-r--r--arch/arm/mach-lpc32xx/Makefile3
-rw-r--r--arch/arm/mach-lpc32xx/clock.c1284
-rw-r--r--arch/arm/mach-lpc32xx/phy3250.c53
-rw-r--r--arch/arm/mach-lpc32xx/serial.c3
-rw-r--r--arch/arm/mach-lpc32xx/timer.c144
-rw-r--r--arch/arm/mach-mmp/Makefile.boot1
-rw-r--r--arch/arm/mach-mv78xx0/Kconfig3
-rw-r--r--arch/arm/mach-mv78xx0/Makefile.boot3
-rw-r--r--arch/arm/mach-mvebu/platsmp.c1
-rw-r--r--arch/arm/mach-netx/Kconfig3
-rw-r--r--arch/arm/mach-nspire/Makefile.boot0
-rw-r--r--arch/arm/mach-omap2/Makefile.boot3
-rw-r--r--arch/arm/mach-orion5x/Makefile.boot3
-rw-r--r--arch/arm/mach-prima2/Makefile.boot3
-rw-r--r--arch/arm/mach-realview/Makefile.boot9
-rw-r--r--arch/arm/mach-s3c64xx/Makefile.boot2
-rw-r--r--arch/arm/mach-shmobile/Kconfig2
-rw-r--r--arch/arm/mach-shmobile/common.h5
-rw-r--r--arch/arm/mach-shmobile/cpufreq.c2
-rw-r--r--arch/arm/mach-shmobile/headsmp-scu.S2
-rw-r--r--arch/arm/mach-shmobile/platsmp-scu.c10
-rw-r--r--arch/arm/mach-shmobile/setup-rcar-gen2.c7
-rw-r--r--arch/arm/mach-shmobile/smp-emev2.c3
-rw-r--r--arch/arm/mach-shmobile/smp-r8a7779.c3
-rw-r--r--arch/arm/mach-shmobile/smp-sh73a0.c3
-rw-r--r--arch/arm/mach-shmobile/suspend.c2
-rw-r--r--arch/arm/mach-shmobile/timer.c2
-rw-r--r--arch/arm/mach-spear/Makefile.boot3
-rw-r--r--arch/arm/mach-u300/Makefile.boot4
-rw-r--r--arch/arm/mach-ux500/Makefile.boot3
-rw-r--r--arch/arm/mach-zynq/Makefile.boot3
-rw-r--r--arch/arm/plat-versatile/Kconfig3
-rw-r--r--arch/arm/plat-versatile/Makefile1
-rw-r--r--arch/arm/plat-versatile/clock.c74
42 files changed, 30 insertions, 1672 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 99c11433115e..c18357f4a01a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -527,10 +527,10 @@ config ARCH_LPC32XX
select ARCH_REQUIRE_GPIOLIB
select ARM_AMBA
select CLKDEV_LOOKUP
- select CLKSRC_MMIO
+ select CLKSRC_LPC32XX
+ select COMMON_CLK
select CPU_ARM926T
select GENERIC_CLOCKEVENTS
- select HAVE_IDE
select USE_OF
help
Support for the NXP LPC32XX family of processors
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 3f6616b472af..55e0e3ea9cb6 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -1,6 +1,7 @@
generic-y += bitsperlong.h
+generic-y += clkdev.h
generic-y += cputime.h
generic-y += current.h
generic-y += early_ioremap.h
diff --git a/arch/arm/include/asm/clkdev.h b/arch/arm/include/asm/clkdev.h
deleted file mode 100644
index 4e8a4b27d7c7..000000000000
--- a/arch/arm/include/asm/clkdev.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * arch/arm/include/asm/clkdev.h
- *
- * Copyright (C) 2008 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Helper for the clk API to assist looking up a struct clk.
- */
-#ifndef __ASM_CLKDEV_H
-#define __ASM_CLKDEV_H
-
-#include <linux/slab.h>
-
-#ifndef CONFIG_COMMON_CLK
-#ifdef CONFIG_HAVE_MACH_CLKDEV
-#include <mach/clkdev.h>
-#else
-#define __clk_get(clk) ({ 1; })
-#define __clk_put(clk) do { } while (0)
-#endif
-#endif
-
-static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
-{
- return kzalloc(size, GFP_KERNEL);
-}
-
-#endif
diff --git a/arch/arm/mach-cns3xxx/Makefile.boot b/arch/arm/mach-cns3xxx/Makefile.boot
deleted file mode 100644
index d079de0b6e3b..000000000000
--- a/arch/arm/mach-cns3xxx/Makefile.boot
+++ /dev/null
@@ -1,3 +0,0 @@
- zreladdr-y += 0x00008000
-params_phys-y := 0x00000100
-initrd_phys-y := 0x00C00000
diff --git a/arch/arm/mach-exynos/Makefile.boot b/arch/arm/mach-exynos/Makefile.boot
deleted file mode 100644
index b9862e22bf10..000000000000
--- a/arch/arm/mach-exynos/Makefile.boot
+++ /dev/null
@@ -1,2 +0,0 @@
- zreladdr-y += 0x40008000
-params_phys-y := 0x40000100
diff --git a/arch/arm/mach-integrator/Kconfig b/arch/arm/mach-integrator/Kconfig
index b01bdc9baf89..b2a85ba13f08 100644
--- a/arch/arm/mach-integrator/Kconfig
+++ b/arch/arm/mach-integrator/Kconfig
@@ -2,22 +2,16 @@ menuconfig ARCH_INTEGRATOR
bool "ARM Ltd. Integrator family"
depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V6
select ARM_AMBA
- select ARM_PATCH_PHYS_VIRT if MMU
- select AUTO_ZRELADDR
- select COMMON_CLK
select COMMON_CLK_VERSATILE
- select GENERIC_CLOCKEVENTS
select HAVE_TCM
select ICST
select MFD_SYSCON
- select MULTI_IRQ_HANDLER
select PLAT_VERSATILE
select POWER_RESET
select POWER_RESET_VERSATILE
select POWER_SUPPLY
select SOC_INTEGRATOR_CM
select SPARSE_IRQ
- select USE_OF
select VERSATILE_FPGA_IRQ
help
Support for ARM's Integrator platform.
diff --git a/arch/arm/mach-integrator/Makefile.boot b/arch/arm/mach-integrator/Makefile.boot
deleted file mode 100644
index ff0a4b5b0a82..000000000000
--- a/arch/arm/mach-integrator/Makefile.boot
+++ /dev/null
@@ -1,4 +0,0 @@
- zreladdr-y += 0x00008000
-params_phys-y := 0x00000100
-initrd_phys-y := 0x00800000
-
diff --git a/arch/arm/mach-keystone/Makefile.boot b/arch/arm/mach-keystone/Makefile.boot
deleted file mode 100644
index f3835c43af61..000000000000
--- a/arch/arm/mach-keystone/Makefile.boot
+++ /dev/null
@@ -1 +0,0 @@
-zreladdr-y := 0x80008000
diff --git a/arch/arm/mach-lpc32xx/Makefile b/arch/arm/mach-lpc32xx/Makefile
index f5db805ab958..c70709ada692 100644
--- a/arch/arm/mach-lpc32xx/Makefile
+++ b/arch/arm/mach-lpc32xx/Makefile
@@ -2,7 +2,6 @@
# Makefile for the linux kernel.
#
-obj-y := timer.o irq.o common.o serial.o clock.o
+obj-y := irq.o common.o serial.o
obj-y += pm.o suspend.o
obj-y += phy3250.o
-
diff --git a/arch/arm/mach-lpc32xx/clock.c b/arch/arm/mach-lpc32xx/clock.c
deleted file mode 100644
index 661c8f4b2310..000000000000
--- a/arch/arm/mach-lpc32xx/clock.c
+++ /dev/null
@@ -1,1284 +0,0 @@
-/*
- * arch/arm/mach-lpc32xx/clock.c
- *
- * Author: Kevin Wells <kevin.wells@nxp.com>
- *
- * Copyright (C) 2010 NXP Semiconductors
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- */
-
-/*
- * LPC32xx clock management driver overview
- *
- * The LPC32XX contains a number of high level system clocks that can be
- * generated from different sources. These system clocks are used to
- * generate the CPU and bus rates and the individual peripheral clocks in
- * the system. When Linux is started by the boot loader, the system
- * clocks are already running. Stopping a system clock during normal
- * Linux operation should never be attempted, as peripherals that require
- * those clocks will quit working (ie, DRAM).
- *
- * The LPC32xx high level clock tree looks as follows. Clocks marked with
- * an asterisk are always on and cannot be disabled. Clocks marked with
- * an ampersand can only be disabled in CPU suspend mode. Clocks marked
- * with a caret are always on if it is the selected clock for the SYSCLK
- * source. The clock that isn't used for SYSCLK can be enabled and
- * disabled normally.
- * 32KHz oscillator*
- * / | \
- * RTC* PLL397^ TOUCH
- * /
- * Main oscillator^ /
- * | \ /
- * | SYSCLK&
- * | \
- * | \
- * USB_PLL HCLK_PLL&
- * | | |
- * USB host/device PCLK& |
- * | |
- * Peripherals
- *
- * The CPU and chip bus rates are derived from the HCLK PLL, which can
- * generate various clock rates up to 266MHz and beyond. The internal bus
- * rates (PCLK and HCLK) are generated from dividers based on the HCLK
- * PLL rate. HCLK can be a ratio of 1:1, 1:2, or 1:4 or HCLK PLL rate,
- * while PCLK can be 1:1 to 1:32 of HCLK PLL rate. Most peripherals high
- * level clocks are based on either HCLK or PCLK, but have their own
- * dividers as part of the IP itself. Because of this, the system clock
- * rates should not be changed.
- *
- * The HCLK PLL is clocked from SYSCLK, which can be derived from the
- * main oscillator or PLL397. PLL397 generates a rate that is 397 times
- * the 32KHz oscillator rate. The main oscillator runs at the selected
- * oscillator/crystal rate on the mosc_in pin of the LPC32xx. This rate
- * is normally 13MHz, but depends on the selection of external crystals
- * or oscillators. If USB operation is required, the main oscillator must
- * be used in the system.
- *
- * Switching SYSCLK between sources during normal Linux operation is not
- * supported. SYSCLK is preset in the bootloader. Because of the
- * complexities of clock management during clock frequency changes,
- * there are some limitations to the clock driver explained below:
- * - The PLL397 and main oscillator can be enabled and disabled by the
- * clk_enable() and clk_disable() functions unless SYSCLK is based
- * on that clock. This allows the other oscillator that isn't driving
- * the HCLK PLL to be used as another system clock that can be routed
- * to an external pin.
- * - The muxed SYSCLK input and HCLK_PLL rate cannot be changed with
- * this driver.
- * - HCLK and PCLK rates cannot be changed as part of this driver.
- * - Most peripherals have their own dividers are part of the peripheral
- * block. Changing SYSCLK, HCLK PLL, HCLK, or PCLK sources or rates
- * will also impact the individual peripheral rates.
- */
-
-#include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/amba/bus.h>
-#include <linux/amba/clcd.h>
-#include <linux/clkdev.h>
-
-#include <mach/hardware.h>
-#include <mach/platform.h>
-#include "clock.h"
-#include "common.h"
-
-static DEFINE_SPINLOCK(global_clkregs_lock);
-
-static int usb_pll_enable, usb_pll_valid;
-
-static struct clk clk_armpll;
-static struct clk clk_usbpll;
-
-/*
- * Post divider values for PLLs based on selected register value
- */
-static const u32 pll_postdivs[4] = {1, 2, 4, 8};
-
-static unsigned long local_return_parent_rate(struct clk *clk)
-{
- /*
- * If a clock has a rate of 0, then it inherits it's parent
- * clock rate
- */
- while (clk->rate == 0)
- clk = clk->parent;
-
- return clk->rate;
-}
-
-/* 32KHz clock has a fixed rate and is not stoppable */
-static struct clk osc_32KHz = {
- .rate = LPC32XX_CLOCK_OSC_FREQ,
- .get_rate = local_return_parent_rate,
-};
-
-static int local_pll397_enable(struct clk *clk, int enable)
-{
- u32 reg;
- unsigned long timeout = jiffies + msecs_to_jiffies(10);
-
- reg = __raw_readl(LPC32XX_CLKPWR_PLL397_CTRL);
-
- if (enable == 0) {
- reg |= LPC32XX_CLKPWR_SYSCTRL_PLL397_DIS;
- __raw_writel(reg, LPC32XX_CLKPWR_PLL397_CTRL);
- } else {
- /* Enable PLL397 */
- reg &= ~LPC32XX_CLKPWR_SYSCTRL_PLL397_DIS;
- __raw_writel(reg, LPC32XX_CLKPWR_PLL397_CTRL);
-
- /* Wait for PLL397 lock */
- while (((__raw_readl(LPC32XX_CLKPWR_PLL397_CTRL) &
- LPC32XX_CLKPWR_SYSCTRL_PLL397_STS) == 0) &&
- time_before(jiffies, timeout))
- cpu_relax();
-
- if ((__raw_readl(LPC32XX_CLKPWR_PLL397_CTRL) &
- LPC32XX_CLKPWR_SYSCTRL_PLL397_STS) == 0)
- return -ENODEV;
- }
-
- return 0;
-}
-
-static int local_oscmain_enable(struct clk *clk, int enable)
-{
- u32 reg;
- unsigned long timeout = jiffies + msecs_to_jiffies(10);
-
- reg = __raw_readl(LPC32XX_CLKPWR_MAIN_OSC_CTRL);
-
- if (enable == 0) {
- reg |= LPC32XX_CLKPWR_MOSC_DISABLE;
- __raw_writel(reg, LPC32XX_CLKPWR_MAIN_OSC_CTRL);
- } else {
- /* Enable main oscillator */
- reg &= ~LPC32XX_CLKPWR_MOSC_DISABLE;
- __raw_writel(reg, LPC32XX_CLKPWR_MAIN_OSC_CTRL);
-
- /* Wait for main oscillator to start */
- while (((__raw_readl(LPC32XX_CLKPWR_MAIN_OSC_CTRL) &
- LPC32XX_CLKPWR_MOSC_DISABLE) != 0) &&
- time_before(jiffies, timeout))
- cpu_relax();
-
- if ((__raw_readl(LPC32XX_CLKPWR_MAIN_OSC_CTRL) &
- LPC32XX_CLKPWR_MOSC_DISABLE) != 0)
- return -ENODEV;
- }
-
- return 0;
-}
-
-static struct clk osc_pll397 = {
- .parent = &osc_32KHz,
- .enable = local_pll397_enable,
- .rate = LPC32XX_CLOCK_OSC_FREQ * 397,
- .get_rate = local_return_parent_rate,
-};
-
-static struct clk osc_main = {
- .enable = local_oscmain_enable,
- .rate = LPC32XX_MAIN_OSC_FREQ,
- .get_rate = local_return_parent_rate,
-};
-
-static struct clk clk_sys;
-
-/*
- * Convert a PLL register value to a PLL output frequency
- */
-u32 clk_get_pllrate_from_reg(u32 inputclk, u32 regval)
-{
- struct clk_pll_setup pllcfg;
-
- pllcfg.cco_bypass_b15 = 0;
- pllcfg.direct_output_b14 = 0;
- pllcfg.fdbk_div_ctrl_b13 = 0;
- if ((regval & LPC32XX_CLKPWR_HCLKPLL_CCO_BYPASS) != 0)
- pllcfg.cco_bypass_b15 = 1;
- if ((regval & LPC32XX_CLKPWR_HCLKPLL_POSTDIV_BYPASS) != 0)
- pllcfg.direct_output_b14 = 1;
- if ((regval & LPC32XX_CLKPWR_HCLKPLL_FDBK_SEL_FCLK) != 0)
- pllcfg.fdbk_div_ctrl_b13 = 1;
- pllcfg.pll_m = 1 + ((regval >> 1) & 0xFF);
- pllcfg.pll_n = 1 + ((regval >> 9) & 0x3);
- pllcfg.pll_p = pll_postdivs[((regval >> 11) & 0x3)];
-
- return clk_check_pll_setup(inputclk, &pllcfg);
-}
-
-/*
- * Setup the HCLK PLL with a PLL structure
- */
-static u32 local_clk_pll_setup(struct clk_pll_setup *PllSetup)
-{
- u32 tv, tmp = 0;
-
- if (PllSetup->analog_on != 0)
- tmp |= LPC32XX_CLKPWR_HCLKPLL_POWER_UP;
- if (PllSetup->cco_bypass_b15 != 0)
- tmp |= LPC32XX_CLKPWR_HCLKPLL_CCO_BYPASS;
- if (PllSetup->direct_output_b14 != 0)
- tmp |= LPC32XX_CLKPWR_HCLKPLL_POSTDIV_BYPASS;
- if (PllSetup->fdbk_div_ctrl_b13 != 0)
- tmp |= LPC32XX_CLKPWR_HCLKPLL_FDBK_SEL_FCLK;
-
- tv = ffs(PllSetup->pll_p) - 1;
- if ((!is_power_of_2(PllSetup->pll_p)) || (tv > 3))
- return 0;
-
- tmp |= LPC32XX_CLKPWR_HCLKPLL_POSTDIV_2POW(tv);
- tmp |= LPC32XX_CLKPWR_HCLKPLL_PREDIV_PLUS1(PllSetup->pll_n - 1);
- tmp |= LPC32XX_CLKPWR_HCLKPLL_PLLM(PllSetup->pll_m - 1);
-
- return tmp;
-}
-
-/*
- * Update the ARM core PLL frequency rate variable from the actual PLL setting
- */
-static void local_update_armpll_rate(void)
-{
- u32 clkin, pllreg;
-
- clkin = clk_armpll.parent->rate;
- pllreg = __raw_readl(LPC32XX_CLKPWR_HCLKPLL_CTRL) & 0x1FFFF;
-
- clk_armpll.rate = clk_get_pllrate_from_reg(clkin, pllreg);
-}
-
-/*
- * Find a PLL configuration for the selected input frequency
- */
-static u32 local_clk_find_pll_cfg(u32 pllin_freq, u32 target_freq,
- struct clk_pll_setup *pllsetup)
-{
- u32 ifreq, freqtol, m, n, p, fclkout;
-
- /* Determine frequency tolerance limits */
- freqtol = target_freq / 250;
- ifreq = pllin_freq;
-
- /* Is direct bypass mode possible? */
- if (abs(pllin_freq - target_freq) <= freqtol) {
- pllsetup->analog_on = 0;
- pllsetup->cco_bypass_b15 = 1;
- pllsetup->direct_output_b14 = 1;
- pllsetup->fdbk_div_ctrl_b13 = 1;
- pllsetup->pll_p = pll_postdivs[0];
- pllsetup->pll_n = 1;
- pllsetup->pll_m = 1;
- return clk_check_pll_setup(ifreq, pllsetup);
- } else if (target_freq <= ifreq) {
- pllsetup->analog_on = 0;
- pllsetup->cco_bypass_b15 = 1;
- pllsetup->direct_output_b14 = 0;
- pllsetup->fdbk_div_ctrl_b13 = 1;
- pllsetup->pll_n = 1;
- pllsetup->pll_m = 1;
- for (p = 0; p <= 3; p++) {
- pllsetup->pll_p = pll_postdivs[p];
- fclkout = clk_check_pll_setup(ifreq, pllsetup);
- if (abs(target_freq - fclkout) <= freqtol)
- return fclkout;
- }
- }
-
- /* Is direct mode possible? */
- pllsetup->analog_on = 1;
- pllsetup->cco_bypass_b15 = 0;
- pllsetup->direct_output_b14 = 1;
- pllsetup->fdbk_div_ctrl_b13 = 0;
- pllsetup->pll_p = pll_postdivs[0];
- for (m = 1; m <= 256; m++) {
- for (n = 1; n <= 4; n++) {
- /* Compute output frequency for this value */
- pllsetup->pll_n = n;
- pllsetup->pll_m = m;
- fclkout = clk_check_pll_setup(ifreq,
- pllsetup);
- if (abs(target_freq - fclkout) <=
- freqtol)
- return fclkout;
- }
- }
-
- /* Is integer mode possible? */
- pllsetup->analog_on = 1;
- pllsetup->cco_bypass_b15 = 0;
- pllsetup->direct_output_b14 = 0;
- pllsetup->fdbk_div_ctrl_b13 = 1;
- for (m = 1; m <= 256; m++) {
- for (n = 1; n <= 4; n++) {
- for (p = 0; p < 4; p++) {
- /* Compute output frequency */
- pllsetup->pll_p = pll_postdivs[p];
- pllsetup->pll_n = n;
- pllsetup->pll_m = m;
- fclkout = clk_check_pll_setup(
- ifreq, pllsetup);
- if (abs(target_freq - fclkout) <= freqtol)
- return fclkout;
- }
- }
- }
-
- /* Try non-integer mode */
- pllsetup->analog_on = 1;
- pllsetup->cco_bypass_b15 = 0;
- pllsetup->direct_output_b14 = 0;
- pllsetup->fdbk_div_ctrl_b13 = 0;
- for (m = 1; m <= 256; m++) {
- for (n = 1; n <= 4; n++) {
- for (p = 0; p < 4; p++) {
- /* Compute output frequency */
- pllsetup->pll_p = pll_postdivs[p];
- pllsetup->pll_n = n;
- pllsetup->pll_m = m;
- fclkout = clk_check_pll_setup(
- ifreq, pllsetup);
- if (abs(target_freq - fclkout) <= freqtol)
- return fclkout;
- }
- }
- }
-
- return 0;
-}
-
-static struct clk clk_armpll = {
- .parent = &clk_sys,
- .get_rate = local_return_parent_rate,
-};
-
-/*
- * Setup the USB PLL with a PLL structure
- */
-static u32 local_clk_usbpll_setup(struct clk_pll_setup *pHCLKPllSetup)
-{
- u32 reg, tmp = local_clk_pll_setup(pHCLKPllSetup);
-
- reg = __raw_readl(LPC32XX_CLKPWR_USB_CTRL) & ~0x1FFFF;
- reg |= tmp;
- __raw_writel(reg, LPC32XX_CLKPWR_USB_CTRL);
-
- return clk_check_pll_setup(clk_usbpll.parent->rate,
- pHCLKPllSetup);
-}
-
-static int local_usbpll_enable(struct clk *clk, int enable)
-{
- u32 reg;
- int ret = 0;
- unsigned long timeout = jiffies + msecs_to_jiffies(20);
-
- reg = __raw_readl(LPC32XX_CLKPWR_USB_CTRL);
-
- __raw_writel(reg & ~(LPC32XX_CLKPWR_USBCTRL_CLK_EN2 |
- LPC32XX_CLKPWR_USBCTRL_PLL_PWRUP),
- LPC32XX_CLKPWR_USB_CTRL);
- __raw_writel(reg & ~LPC32XX_CLKPWR_USBCTRL_CLK_EN1,
- LPC32XX_CLKPWR_USB_CTRL);
-
- if (enable && usb_pll_valid && usb_pll_enable) {
- ret = -ENODEV;
- /*
- * If the PLL rate has been previously set, then the rate
- * in the PLL register is valid and can be enabled here.
- * Otherwise, it needs to be enabled as part of setrate.
- */
-
- /*
- * Gate clock into PLL
- */
- reg |= LPC32XX_CLKPWR_USBCTRL_CLK_EN1;
- __raw_writel(reg, LPC32XX_CLKPWR_USB_CTRL);
-
- /*
- * Enable PLL
- */
- reg |= LPC32XX_CLKPWR_USBCTRL_PLL_PWRUP;
- __raw_writel(reg, LPC32XX_CLKPWR_USB_CTRL);
-
- /*
- * Wait for PLL to lock
- */
- while (time_before(jiffies, timeout) && (ret == -ENODEV)) {
- reg = __raw_readl(LPC32XX_CLKPWR_USB_CTRL);
- if (reg & LPC32XX_CLKPWR_USBCTRL_PLL_STS)
- ret = 0;
- else
- udelay(10);
- }
-
- /*
- * Gate clock from PLL if PLL is locked
- */
- if (ret == 0) {
- __raw_writel(reg | LPC32XX_CLKPWR_USBCTRL_CLK_EN2,
- LPC32XX_CLKPWR_USB_CTRL);
- } else {
- __raw_writel(reg & ~(LPC32XX_CLKPWR_USBCTRL_CLK_EN1 |
- LPC32XX_CLKPWR_USBCTRL_PLL_PWRUP),
- LPC32XX_CLKPWR_USB_CTRL);
- }
- } else if ((enable == 0) && usb_pll_valid && usb_pll_enable) {
- usb_pll_valid = 0;
- usb_pll_enable = 0;
- }
-
- return ret;
-}
-
-static unsigned long local_usbpll_round_rate(struct clk *clk,
- unsigned long rate)
-{
- u32 clkin, usbdiv;
- struct clk_pll_setup pllsetup;
-
- /*
- * Unlike other clocks, this clock has a KHz input rate, so bump
- * it up to work with the PLL function
- */
- rate = rate * 1000;
-
- clkin = clk->get_rate(clk);
- usbdiv = (__raw_readl(LPC32XX_CLKPWR_USBCLK_PDIV) &
- LPC32XX_CLKPWR_USBPDIV_PLL_MASK) + 1;
- clkin = clkin / usbdiv;
-
- /* Try to find a good rate setup */
- if (local_clk_find_pll_cfg(clkin, rate, &pllsetup) == 0)
- return 0;
-
- return clk_check_pll_setup(clkin, &pllsetup);
-}
-
-static int local_usbpll_set_rate(struct clk *clk, unsigned long rate)
-{
- int ret = -ENODEV;
- u32 clkin, usbdiv;
- struct clk_pll_setup pllsetup;
-
- /*
- * Unlike other clocks, this clock has a KHz input rate, so bump
- * it up to work with the PLL function
- */
- rate = rate * 1000;
-
- clkin = clk->get_rate(clk->parent);
- usbdiv = (__raw_readl(LPC32XX_CLKPWR_USBCLK_PDIV) &
- LPC32XX_CLKPWR_USBPDIV_PLL_MASK) + 1;
- clkin = clkin / usbdiv;
-
- /* Try to find a good rate setup */
- if (local_clk_find_pll_cfg(clkin, rate, &pllsetup) == 0)
- return -EINVAL;
-
- /*
- * Disable PLL clocks during PLL change
- */
- local_usbpll_enable(clk, 0);
- pllsetup.analog_on = 0;
- local_clk_usbpll_setup(&pllsetup);
-
- /*
- * Start USB PLL and check PLL status
- */
-
- usb_pll_valid = 1;
- usb_pll_enable = 1;
-
- ret = local_usbpll_enable(clk, 1);
- if (ret >= 0)
- clk->rate = clk_check_pll_setup(clkin, &pllsetup);
-
- return ret;
-}
-
-static struct clk clk_usbpll = {
- .parent = &osc_main,
- .set_rate = local_usbpll_set_rate,
- .enable = local_usbpll_enable,
- .rate = 48000, /* In KHz */
- .get_rate = local_return_parent_rate,
- .round_rate = local_usbpll_round_rate,
-};
-
-static u32 clk_get_hclk_div(void)
-{
- static const u32 hclkdivs[4] = {1, 2, 4, 4};
- return hclkdivs[LPC32XX_CLKPWR_HCLKDIV_DIV_2POW(
- __raw_readl(LPC32XX_CLKPWR_HCLK_DIV))];
-}
-
-static struct clk clk_hclk = {
- .parent = &clk_armpll,
- .get_rate = local_return_parent_rate,
-};
-
-static struct clk clk_pclk = {
- .parent = &clk_armpll,
- .get_rate = local_return_parent_rate,
-};
-
-static int local_onoff_enable(struct clk *clk, int enable)
-{
- u32 tmp;
-
- tmp = __raw_readl(clk->enable_reg);
-
- if (enable == 0)
- tmp &= ~clk->enable_mask;
- else
- tmp |= clk->enable_mask;
-
- __raw_writel(tmp, clk->enable_reg);
-
- return 0;
-}
-
-/* Peripheral clock sources */
-static struct clk clk_timer0 = {
- .parent = &clk_pclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_TIMERS_PWMS_CLK_CTRL_1,
- .enable_mask = LPC32XX_CLKPWR_TMRPWMCLK_TIMER0_EN,
- .get_rate = local_return_parent_rate,
-};
-static struct clk clk_timer1 = {
- .parent = &clk_pclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_TIMERS_PWMS_CLK_CTRL_1,
- .enable_mask = LPC32XX_CLKPWR_TMRPWMCLK_TIMER1_EN,
- .get_rate = local_return_parent_rate,
-};
-static struct clk clk_timer2 = {
- .parent = &clk_pclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_TIMERS_PWMS_CLK_CTRL_1,
- .enable_mask = LPC32XX_CLKPWR_TMRPWMCLK_TIMER2_EN,
- .get_rate = local_return_parent_rate,
-};
-static struct clk clk_timer3 = {
- .parent = &clk_pclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_TIMERS_PWMS_CLK_CTRL_1,
- .enable_mask = LPC32XX_CLKPWR_TMRPWMCLK_TIMER3_EN,
- .get_rate = local_return_parent_rate,
-};
-static struct clk clk_mpwm = {
- .parent = &clk_pclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_TIMERS_PWMS_CLK_CTRL_1,
- .enable_mask = LPC32XX_CLKPWR_TMRPWMCLK_MPWM_EN,
- .get_rate = local_return_parent_rate,
-};
-static struct clk clk_wdt = {
- .parent = &clk_pclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_TIMER_CLK_CTRL,
- .enable_mask = LPC32XX_CLKPWR_PWMCLK_WDOG_EN,
- .get_rate = local_return_parent_rate,
-};
-static struct clk clk_vfp9 = {
- .parent = &clk_pclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_DEBUG_CTRL,
- .enable_mask = LPC32XX_CLKPWR_VFP_CLOCK_ENABLE_BIT,
- .get_rate = local_return_parent_rate,
-};
-static struct clk clk_dma = {
- .parent = &clk_hclk,
- .enable = local_onoff_enable,
- .enable_reg = LPC32XX_CLKPWR_DMA_CLK_CTRL,
- .enable_mask = LPC32XX_CLKPWR_DMACLKCTRL_CLK_EN,
- .get_rate = local_return_parent_rate,