[ARM] remove arch-imx

[pandora-kernel.git] / arch / arm / mach-imx / clock.c

diff --git a/arch/arm/mach-imx/clock.c b/arch/arm/mach-imx/clock.c
deleted file mode 100644 (file)
index cf332ae..0000000
--- a/arch/arm/mach-imx/clock.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- *  Copyright (C) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- *
- * 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.
- *
- * 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/device.h>
-#include <linux/list.h>
-#include <linux/math64.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-
-/*
- * Very simple approach: We can't disable clocks, so we do
- * not need refcounting
- */
-
-struct clk {
-       struct list_head node;
-       const char *name;
-       unsigned long (*get_rate)(void);
-};
-
-/*
- *  get the system pll clock in Hz
- *
- *                  mfi + mfn / (mfd +1)
- *  f = 2 * f_ref * --------------------
- *                        pd + 1
- */
-static unsigned long imx_decode_pll(unsigned int pll, u32 f_ref)
-{
-       unsigned long long ll;
-       unsigned long quot;
-
-       u32 mfi = (pll >> 10) & 0xf;
-       u32 mfn = pll & 0x3ff;
-       u32 mfd = (pll >> 16) & 0x3ff;
-       u32 pd =  (pll >> 26) & 0xf;
-
-       mfi = mfi <= 5 ? 5 : mfi;
-
-       ll = 2 * (unsigned long long)f_ref *
-               ((mfi << 16) + (mfn << 16) / (mfd + 1));
-       quot = (pd + 1) * (1 << 16);
-       ll += quot / 2;
-       do_div(ll, quot);
-       return (unsigned long)ll;
-}
-
-static unsigned long imx_get_system_clk(void)
-{
-       u32 f_ref = (CSCR & CSCR_SYSTEM_SEL) ? 16000000 : (CLK32 * 512);
-
-       return imx_decode_pll(SPCTL0, f_ref);
-}
-
-static unsigned long imx_get_mcu_clk(void)
-{
-       return imx_decode_pll(MPCTL0, CLK32 * 512);
-}
-
-/*
- *  get peripheral clock 1 ( UART[12], Timer[12], PWM )
- */
-static unsigned long imx_get_perclk1(void)
-{
-       return imx_get_system_clk() / (((PCDR) & 0xf)+1);
-}
-
-/*
- *  get peripheral clock 2 ( LCD, SD, SPI[12] )
- */
-static unsigned long imx_get_perclk2(void)
-{
-       return imx_get_system_clk() / (((PCDR>>4) & 0xf)+1);
-}
-
-/*
- *  get peripheral clock 3 ( SSI )
- */
-static unsigned long imx_get_perclk3(void)
-{
-       return imx_get_system_clk() / (((PCDR>>16) & 0x7f)+1);
-}
-
-/*
- *  get hclk ( SDRAM, CSI, Memory Stick, I2C, DMA )
- */
-static unsigned long imx_get_hclk(void)
-{
-       return imx_get_system_clk() / (((CSCR>>10) & 0xf)+1);
-}
-
-static struct clk clk_system_clk = {
-       .name = "system_clk",
-       .get_rate = imx_get_system_clk,
-};
-
-static struct clk clk_hclk = {
-       .name = "hclk",
-       .get_rate = imx_get_hclk,
-};
-
-static struct clk clk_mcu_clk = {
-       .name = "mcu_clk",
-       .get_rate = imx_get_mcu_clk,
-};
-
-static struct clk clk_perclk1 = {
-       .name = "perclk1",
-       .get_rate = imx_get_perclk1,
-};
-
-static struct clk clk_uart_clk = {
-       .name = "uart_clk",
-       .get_rate = imx_get_perclk1,
-};
-
-static struct clk clk_perclk2 = {
-       .name = "perclk2",
-       .get_rate = imx_get_perclk2,
-};
-
-static struct clk clk_perclk3 = {
-       .name = "perclk3",
-       .get_rate = imx_get_perclk3,
-};
-
-static struct clk *clks[] = {
-       &clk_perclk1,
-       &clk_perclk2,
-       &clk_perclk3,
-       &clk_system_clk,
-       &clk_hclk,
-       &clk_mcu_clk,
-       &clk_uart_clk,
-};
-
-static LIST_HEAD(clocks);
-static DEFINE_MUTEX(clocks_mutex);
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
-       struct clk *p, *clk = ERR_PTR(-ENOENT);
-
-       mutex_lock(&clocks_mutex);
-       list_for_each_entry(p, &clocks, node) {
-               if (!strcmp(p->name, id)) {
-                       clk = p;
-                       goto found;
-               }
-       }
-
-found:
-       mutex_unlock(&clocks_mutex);
-
-       return clk;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
-
-int clk_enable(struct clk *clk)
-{
-       return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
-       return clk->get_rate();
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-int imx_clocks_init(void)
-{
-       int i;
-
-       mutex_lock(&clocks_mutex);
-       for (i = 0; i < ARRAY_SIZE(clks); i++)
-               list_add(&clks[i]->node, &clocks);
-       mutex_unlock(&clocks_mutex);
-
-       return 0;
-}
-