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Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.26/1011-s3c2410-pwm.patch.patch')
-rwxr-xr-xtarget/linux/s3c24xx/patches-2.6.26/1011-s3c2410-pwm.patch.patch323
1 files changed, 0 insertions, 323 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.26/1011-s3c2410-pwm.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1011-s3c2410-pwm.patch.patch
deleted file mode 100755
index 2a22040e71..0000000000
--- a/target/linux/s3c24xx/patches-2.6.26/1011-s3c2410-pwm.patch.patch
+++ /dev/null
@@ -1,323 +0,0 @@
-From 2b1ccb68bdc0e1454be0e769896862bf0c7f95f9 Mon Sep 17 00:00:00 2001
-From: mokopatches <mokopatches@openmoko.org>
-Date: Wed, 16 Jul 2008 14:44:49 +0100
-Subject: [PATCH] s3c2410-pwm.patch
- This patch adds a PWM api abstraction for the S3C2410 SoC
-
-Signed-off-by: Javi Roman <javiroman@kernel-labs.org>
-Signed-off-by: Harald Welte <laforge@openmoko.org>
----
- arch/arm/mach-s3c2410/Kconfig | 7 +
- arch/arm/mach-s3c2410/Makefile | 1 +
- arch/arm/mach-s3c2410/pwm.c | 214 ++++++++++++++++++++++++++++++++++++
- include/asm-arm/arch-s3c2410/pwm.h | 40 +++++++
- 4 files changed, 262 insertions(+), 0 deletions(-)
- create mode 100644 arch/arm/mach-s3c2410/pwm.c
- create mode 100644 include/asm-arm/arch-s3c2410/pwm.h
-
-diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
-index 58519e6..3e9ec50 100644
---- a/arch/arm/mach-s3c2410/Kconfig
-+++ b/arch/arm/mach-s3c2410/Kconfig
-@@ -9,6 +9,7 @@ config CPU_S3C2410
- depends on ARCH_S3C2410
- select S3C2410_CLOCK
- select S3C2410_GPIO
-+ select S3C2410_PWM
- select CPU_LLSERIAL_S3C2410
- select S3C2410_PM if PM
- help
-@@ -38,6 +39,12 @@ config S3C2410_CLOCK
- Clock code for the S3C2410, and similar processors
-
-
-+config S3C2410_PWM
-+ bool
-+ help
-+ PWM timer code for the S3C2410, and similar processors
-+
-+
- menu "S3C2410 Machines"
-
- config ARCH_SMDK2410
-diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
-index b73562f..2a12a6a 100644
---- a/arch/arm/mach-s3c2410/Makefile
-+++ b/arch/arm/mach-s3c2410/Makefile
-@@ -16,6 +16,7 @@ obj-$(CONFIG_CPU_S3C2410_DMA) += dma.o
- obj-$(CONFIG_S3C2410_PM) += pm.o sleep.o
- obj-$(CONFIG_S3C2410_GPIO) += gpio.o
- obj-$(CONFIG_S3C2410_CLOCK) += clock.o
-+obj-$(CONFIG_S3C2410_PWM) += pwm.o
-
- # Machine support
-
-diff --git a/arch/arm/mach-s3c2410/pwm.c b/arch/arm/mach-s3c2410/pwm.c
-new file mode 100644
-index 0000000..8a07359
---- /dev/null
-+++ b/arch/arm/mach-s3c2410/pwm.c
-@@ -0,0 +1,214 @@
-+/*
-+ * arch/arm/mach-s3c2410/3c2410-pwm.c
-+ *
-+ * Copyright (c) by Javi Roman <javiroman@kernel-labs.org>
-+ * for the OpenMoko Project.
-+ *
-+ * S3C2410A SoC PWM support
-+ *
-+ * 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.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ *
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/clk.h>
-+#include <asm/hardware.h>
-+#include <asm/plat-s3c/regs-timer.h>
-+#include <asm/arch/pwm.h>
-+
-+int s3c2410_pwm_disable(struct s3c2410_pwm *pwm)
-+{
-+ unsigned long tcon;
-+
-+ /* stop timer */
-+ tcon = __raw_readl(S3C2410_TCON);
-+ tcon &= 0xffffff00;
-+ __raw_writel(tcon, S3C2410_TCON);
-+
-+ clk_disable(pwm->pclk);
-+ clk_put(pwm->pclk);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(s3c2410_pwm_disable);
-+
-+int s3c2410_pwm_init(struct s3c2410_pwm *pwm)
-+{
-+ pwm->pclk = clk_get(NULL, "timers");
-+ if (IS_ERR(pwm->pclk))
-+ return PTR_ERR(pwm->pclk);
-+
-+ clk_enable(pwm->pclk);
-+ pwm->pclk_rate = clk_get_rate(pwm->pclk);
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(s3c2410_pwm_init);
-+
-+int s3c2410_pwm_enable(struct s3c2410_pwm *pwm)
-+{
-+ unsigned long tcfg0, tcfg1, tcnt, tcmp;
-+
-+ /* control registers bits */
-+ tcfg1 = __raw_readl(S3C2410_TCFG1);
-+ tcfg0 = __raw_readl(S3C2410_TCFG0);
-+
-+ /* divider & scaler slection */
-+ switch (pwm->timerid) {
-+ case PWM0:
-+ tcfg1 &= ~S3C2410_TCFG1_MUX0_MASK;
-+ tcfg0 &= ~S3C2410_TCFG_PRESCALER0_MASK;
-+ break;
-+ case PWM1:
-+ tcfg1 &= ~S3C2410_TCFG1_MUX1_MASK;
-+ tcfg0 &= ~S3C2410_TCFG_PRESCALER0_MASK;
-+ break;
-+ case PWM2:
-+ tcfg1 &= ~S3C2410_TCFG1_MUX2_MASK;
-+ tcfg0 &= ~S3C2410_TCFG_PRESCALER1_MASK;
-+ break;
-+ case PWM3:
-+ tcfg1 &= ~S3C2410_TCFG1_MUX3_MASK;
-+ tcfg0 &= ~S3C2410_TCFG_PRESCALER1_MASK;
-+ break;
-+ case PWM4:
-+ /* timer four is not capable of doing PWM */
-+ break;
-+ default:
-+ clk_disable(pwm->pclk);
-+ clk_put(pwm->pclk);
-+ return -1;
-+ }
-+
-+ /* divider & scaler values */
-+ tcfg1 |= pwm->divider;
-+ __raw_writel(tcfg1, S3C2410_TCFG1);
-+
-+ switch (pwm->timerid) {
-+ case PWM0:
-+ case PWM1:
-+ tcfg0 |= pwm->prescaler;
-+ __raw_writel(tcfg0, S3C2410_TCFG0);
-+ break;
-+ default:
-+ if ((tcfg0 | pwm->prescaler) != tcfg0) {
-+ printk(KERN_WARNING "not changing prescaler of PWM %u,"
-+ " since it's shared with timer4 (clock tick)\n",
-+ pwm->timerid);
-+ }
-+ break;
-+ }
-+
-+ /* timer count and compare buffer initial values */
-+ tcnt = pwm->counter;
-+ tcmp = pwm->comparer;
-+
-+ __raw_writel(tcnt, S3C2410_TCNTB(pwm->timerid));
-+ __raw_writel(tcmp, S3C2410_TCMPB(pwm->timerid));
-+
-+ /* ensure timer is stopped */
-+ s3c2410_pwm_stop(pwm);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(s3c2410_pwm_enable);
-+
-+int s3c2410_pwm_start(struct s3c2410_pwm *pwm)
-+{
-+ unsigned long tcon;
-+
-+ tcon = __raw_readl(S3C2410_TCON);
-+
-+ switch (pwm->timerid) {
-+ case PWM0:
-+ tcon |= S3C2410_TCON_T0START;
-+ tcon &= ~S3C2410_TCON_T0MANUALUPD;
-+ break;
-+ case PWM1:
-+ tcon |= S3C2410_TCON_T1START;
-+ tcon &= ~S3C2410_TCON_T1MANUALUPD;
-+ break;
-+ case PWM2:
-+ tcon |= S3C2410_TCON_T2START;
-+ tcon &= ~S3C2410_TCON_T2MANUALUPD;
-+ break;
-+ case PWM3:
-+ tcon |= S3C2410_TCON_T3START;
-+ tcon &= ~S3C2410_TCON_T3MANUALUPD;
-+ break;
-+ case PWM4:
-+ /* timer four is not capable of doing PWM */
-+ default:
-+ return -ENODEV;
-+ }
-+
-+ __raw_writel(tcon, S3C2410_TCON);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(s3c2410_pwm_start);
-+
-+int s3c2410_pwm_stop(struct s3c2410_pwm *pwm)
-+{
-+ unsigned long tcon;
-+
-+ tcon = __raw_readl(S3C2410_TCON);
-+
-+ switch (pwm->timerid) {
-+ case PWM0:
-+ tcon &= ~0x00000000;
-+ tcon |= S3C2410_TCON_T0RELOAD;
-+ tcon |= S3C2410_TCON_T0MANUALUPD;
-+ break;
-+ case PWM1:
-+ tcon &= ~0x00000080;
-+ tcon |= S3C2410_TCON_T1RELOAD;
-+ tcon |= S3C2410_TCON_T1MANUALUPD;
-+ break;
-+ case PWM2:
-+ tcon &= ~0x00000800;
-+ tcon |= S3C2410_TCON_T2RELOAD;
-+ tcon |= S3C2410_TCON_T2MANUALUPD;
-+ break;
-+ case PWM3:
-+ tcon &= ~0x00008000;
-+ tcon |= S3C2410_TCON_T3RELOAD;
-+ tcon |= S3C2410_TCON_T3MANUALUPD;
-+ break;
-+ case PWM4:
-+ /* timer four is not capable of doing PWM */
-+ default:
-+ return -ENODEV;
-+ }
-+
-+ __raw_writel(tcon, S3C2410_TCON);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(s3c2410_pwm_stop);
-+
-+int s3c2410_pwm_duty_cycle(int reg_value, struct s3c2410_pwm *pwm)
-+{
-+ __raw_writel(reg_value, S3C2410_TCMPB(pwm->timerid));
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(s3c2410_pwm_duty_cycle);
-+
-+int s3c2410_pwm_dumpregs(void)
-+{
-+ printk(KERN_INFO "TCON: %08lx, TCFG0: %08lx, TCFG1: %08lx\n",
-+ (unsigned long) __raw_readl(S3C2410_TCON),
-+ (unsigned long) __raw_readl(S3C2410_TCFG0),
-+ (unsigned long) __raw_readl(S3C2410_TCFG1));
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(s3c2410_pwm_dumpregs);
-diff --git a/include/asm-arm/arch-s3c2410/pwm.h b/include/asm-arm/arch-s3c2410/pwm.h
-new file mode 100644
-index 0000000..a797ec3
---- /dev/null
-+++ b/include/asm-arm/arch-s3c2410/pwm.h
-@@ -0,0 +1,40 @@
-+#ifndef __S3C2410_PWM_H
-+#define __S3C2410_PWM_H
-+
-+#include <linux/err.h>
-+#include <linux/platform_device.h>
-+#include <linux/clk.h>
-+
-+#include <asm-arm/io.h>
-+#include <asm/arch/hardware.h>
-+#include <asm/mach-types.h>
-+#include <asm/plat-s3c/regs-timer.h>
-+#include <asm/arch/gta01.h>
-+
-+enum pwm_timer {
-+ PWM0,
-+ PWM1,
-+ PWM2,
-+ PWM3,
-+ PWM4
-+};
-+
-+struct s3c2410_pwm {
-+ enum pwm_timer timerid;
-+ struct clk *pclk;
-+ unsigned long pclk_rate;
-+ unsigned long prescaler;
-+ unsigned long divider;
-+ unsigned long counter;
-+ unsigned long comparer;
-+};
-+
-+int s3c2410_pwm_init(struct s3c2410_pwm *s3c2410_pwm);
-+int s3c2410_pwm_enable(struct s3c2410_pwm *s3c2410_pwm);
-+int s3c2410_pwm_disable(struct s3c2410_pwm *s3c2410_pwm);
-+int s3c2410_pwm_start(struct s3c2410_pwm *s3c2410_pwm);
-+int s3c2410_pwm_stop(struct s3c2410_pwm *s3c2410_pwm);
-+int s3c2410_pwm_duty_cycle(int reg_value, struct s3c2410_pwm *s3c2410_pwm);
-+int s3c2410_pwm_dumpregs(void);
-+
-+#endif /* __S3C2410_PWM_H */
---
-1.5.6.3
-
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