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-rw-r--r--arch/mips/kernel/csrc-powertv.c151
1 files changed, 0 insertions, 151 deletions
diff --git a/arch/mips/kernel/csrc-powertv.c b/arch/mips/kernel/csrc-powertv.c
deleted file mode 100644
index abd99ea911ae..000000000000
--- a/arch/mips/kernel/csrc-powertv.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright (C) 2008 Scientific-Atlanta, Inc.
- *
- * 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.
- */
-/*
- * The file comes from kernel/csrc-r4k.c
- */
-#include <linux/clocksource.h>
-#include <linux/init.h>
-
-#include <asm/time.h> /* Not included in linux/time.h */
-
-#include <asm/mach-powertv/asic_regs.h>
-#include "powertv-clock.h"
-
-/* MIPS PLL Register Definitions */
-#define PLL_GET_M(x) (((x) >> 8) & 0x000000FF)
-#define PLL_GET_N(x) (((x) >> 16) & 0x000000FF)
-#define PLL_GET_P(x) (((x) >> 24) & 0x00000007)
-
-/*
- * returns: Clock frequency in kHz
- */
-unsigned int __init mips_get_pll_freq(void)
-{
- unsigned int pll_reg, m, n, p;
- unsigned int fin = 54000; /* Base frequency in kHz */
- unsigned int fout;
-
- /* Read PLL register setting */
- pll_reg = asic_read(mips_pll_setup);
- m = PLL_GET_M(pll_reg);
- n = PLL_GET_N(pll_reg);
- p = PLL_GET_P(pll_reg);
- pr_info("MIPS PLL Register:0x%x M=%d N=%d P=%d\n", pll_reg, m, n, p);
-
- /* Calculate clock frequency = (2 * N * 54MHz) / (M * (2**P)) */
- fout = ((2 * n * fin) / (m * (0x01 << p)));
-
- pr_info("MIPS Clock Freq=%d kHz\n", fout);
-
- return fout;
-}
-
-static cycle_t c0_hpt_read(struct clocksource *cs)
-{
- return read_c0_count();
-}
-
-static struct clocksource clocksource_mips = {
- .name = "powertv-counter",
- .read = c0_hpt_read,
- .mask = CLOCKSOURCE_MASK(32),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static void __init powertv_c0_hpt_clocksource_init(void)
-{
- unsigned int pll_freq = mips_get_pll_freq();
-
- pr_info("CPU frequency %d.%02d MHz\n", pll_freq / 1000,
- (pll_freq % 1000) * 100 / 1000);
-
- mips_hpt_frequency = pll_freq / 2 * 1000;
-
- clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
-
- clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
-}
-
-/**
- * struct tim_c - free running counter
- * @hi: High 16 bits of the counter
- * @lo: Low 32 bits of the counter
- *
- * Lays out the structure of the free running counter in memory. This counter
- * increments at a rate of 27 MHz/8 on all platforms.
- */
-struct tim_c {
- unsigned int hi;
- unsigned int lo;
-};
-
-static struct tim_c *tim_c;
-
-static cycle_t tim_c_read(struct clocksource *cs)
-{
- unsigned int hi;
- unsigned int next_hi;
- unsigned int lo;
-
- hi = readl(&tim_c->hi);
-
- for (;;) {
- lo = readl(&tim_c->lo);
- next_hi = readl(&tim_c->hi);
- if (next_hi == hi)
- break;
- hi = next_hi;
- }
-
-pr_crit("%s: read %llx\n", __func__, ((u64) hi << 32) | lo);
- return ((u64) hi << 32) | lo;
-}
-
-#define TIM_C_SIZE 48 /* # bits in the timer */
-
-static struct clocksource clocksource_tim_c = {
- .name = "powertv-tim_c",
- .read = tim_c_read,
- .mask = CLOCKSOURCE_MASK(TIM_C_SIZE),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-/**
- * powertv_tim_c_clocksource_init - set up a clock source for the TIM_C clock
- *
- * We know that TIM_C counts at 27 MHz/8, so each cycle corresponds to
- * 1 / (27,000,000/8) seconds.
- */
-static void __init powertv_tim_c_clocksource_init(void)
-{
- const unsigned long counts_per_second = 27000000 / 8;
-
- clocksource_tim_c.rating = 200;
-
- clocksource_register_hz(&clocksource_tim_c, counts_per_second);
- tim_c = (struct tim_c *) asic_reg_addr(tim_ch);
-}
-
-/**
- powertv_clocksource_init - initialize all clocksources
- */
-void __init powertv_clocksource_init(void)
-{
- powertv_c0_hpt_clocksource_init();
- powertv_tim_c_clocksource_init();
-}
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