summaryrefslogtreecommitdiff
path: root/arch/sh/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r--arch/sh/kernel/cpu/sh4a/Makefile2
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7343.c99
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7722.c70
3 files changed, 41 insertions, 130 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index a880e7968750..9381ad8da263 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -21,7 +21,7 @@ clock-$(CONFIG_CPU_SUBTYPE_SH7763) := clock-sh7763.o
clock-$(CONFIG_CPU_SUBTYPE_SH7770) := clock-sh7770.o
clock-$(CONFIG_CPU_SUBTYPE_SH7780) := clock-sh7780.o
clock-$(CONFIG_CPU_SUBTYPE_SH7785) := clock-sh7785.o
-clock-$(CONFIG_CPU_SUBTYPE_SH7343) := clock-sh7343.o
+clock-$(CONFIG_CPU_SUBTYPE_SH7343) := clock-sh7722.o
clock-$(CONFIG_CPU_SUBTYPE_SH7722) := clock-sh7722.o
clock-$(CONFIG_CPU_SUBTYPE_SH7723) := clock-sh7722.o
clock-$(CONFIG_CPU_SUBTYPE_SH7366) := clock-sh7722.o
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c b/arch/sh/kernel/cpu/sh4a/clock-sh7343.c
deleted file mode 100644
index 7adc4f16e95a..000000000000
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * arch/sh/kernel/cpu/sh4a/clock-sh7343.c
- *
- * SH7343/SH7722 support for the clock framework
- *
- * Copyright (C) 2006 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-#include <asm/clock.h>
-#include <asm/freq.h>
-
-/*
- * SH7343/SH7722 uses a common set of multipliers and divisors, so this
- * is quite simple..
- */
-static int multipliers[] = { 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
-static int divisors[] = { 1, 3, 2, 5, 3, 4, 5, 6, 8, 10, 12, 16, 20 };
-
-#define pll_calc() (((ctrl_inl(FRQCR) >> 24) & 0x1f) + 1)
-
-static void master_clk_init(struct clk *clk)
-{
- clk->parent = clk_get(NULL, "cpu_clk");
-}
-
-static void master_clk_recalc(struct clk *clk)
-{
- int idx = (ctrl_inl(FRQCR) & 0x000f);
- clk->rate *= clk->parent->rate * multipliers[idx] / divisors[idx];
-}
-
-static struct clk_ops sh7343_master_clk_ops = {
- .init = master_clk_init,
- .recalc = master_clk_recalc,
-};
-
-static void module_clk_init(struct clk *clk)
-{
- clk->parent = NULL;
- clk->rate = CONFIG_SH_PCLK_FREQ;
-}
-
-static struct clk_ops sh7343_module_clk_ops = {
- .init = module_clk_init,
-};
-
-static void bus_clk_init(struct clk *clk)
-{
- clk->parent = clk_get(NULL, "cpu_clk");
-}
-
-static void bus_clk_recalc(struct clk *clk)
-{
- int idx = (ctrl_inl(FRQCR) >> 8) & 0x000f;
- clk->rate = clk->parent->rate * multipliers[idx] / divisors[idx];
-}
-
-static struct clk_ops sh7343_bus_clk_ops = {
- .init = bus_clk_init,
- .recalc = bus_clk_recalc,
-};
-
-static void cpu_clk_init(struct clk *clk)
-{
- clk->parent = clk_get(NULL, "module_clk");
- clk->flags |= CLK_RATE_PROPAGATES;
- clk_set_rate(clk, clk_get_rate(clk));
-}
-
-static void cpu_clk_recalc(struct clk *clk)
-{
- int idx = (ctrl_inl(FRQCR) >> 20) & 0x000f;
- clk->rate = clk->parent->rate * pll_calc() *
- multipliers[idx] / divisors[idx];
-}
-
-static struct clk_ops sh7343_cpu_clk_ops = {
- .init = cpu_clk_init,
- .recalc = cpu_clk_recalc,
-};
-
-static struct clk_ops *sh7343_clk_ops[] = {
- &sh7343_master_clk_ops,
- &sh7343_module_clk_ops,
- &sh7343_bus_clk_ops,
- &sh7343_cpu_clk_ops,
-};
-
-void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
-{
- if (idx < ARRAY_SIZE(sh7343_clk_ops))
- *ops = sh7343_clk_ops[idx];
-}
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
index 2f50f8a1f878..db913855c2fd 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
@@ -1,7 +1,7 @@
/*
* arch/sh/kernel/cpu/sh4a/clock-sh7722.c
*
- * SH7722 & SH7366 support for the clock framework
+ * SH7343, SH7722, SH7723 & SH7366 support for the clock framework
*
* Copyright (c) 2006-2007 Nomad Global Solutions Inc
* Based on code for sh7343 by Paul Mundt
@@ -413,6 +413,30 @@ static struct clk_ops sh7722_frqcr_clk_ops = {
*
*/
+#ifndef CONFIG_CPU_SUBTYPE_SH7343
+
+static int sh7722_siu_set_rate(struct clk *clk, unsigned long rate, int algo_id)
+{
+ unsigned long r;
+ int div;
+
+ r = ctrl_inl(clk->arch_flags);
+ div = sh7722_find_divisors(clk->parent->rate, rate);
+ if (div < 0)
+ return div;
+ r = (r & ~0xF) | div;
+ ctrl_outl(r, clk->arch_flags);
+ return 0;
+}
+
+static void sh7722_siu_recalc(struct clk *clk)
+{
+ unsigned long r;
+
+ r = ctrl_inl(clk->arch_flags);
+ clk->rate = clk->parent->rate * 2 / divisors2[r & 0xF];
+}
+
static int sh7722_siu_start_stop(struct clk *clk, int enable)
{
unsigned long r;
@@ -435,6 +459,15 @@ static void sh7722_siu_disable(struct clk *clk)
sh7722_siu_start_stop(clk, 0);
}
+static struct clk_ops sh7722_siu_clk_ops = {
+ .recalc = sh7722_siu_recalc,
+ .set_rate = sh7722_siu_set_rate,
+ .enable = sh7722_siu_enable,
+ .disable = sh7722_siu_disable,
+};
+
+#endif /* CONFIG_CPU_SUBTYPE_SH7343 */
+
static void sh7722_video_enable(struct clk *clk)
{
unsigned long r;
@@ -471,35 +504,6 @@ static void sh7722_video_recalc(struct clk *clk)
clk->rate = clk->parent->rate / ((r & 0x3F) + 1);
}
-static int sh7722_siu_set_rate(struct clk *clk, unsigned long rate, int algo_id)
-{
- unsigned long r;
- int div;
-
- r = ctrl_inl(clk->arch_flags);
- div = sh7722_find_divisors(clk->parent->rate, rate);
- if (div < 0)
- return div;
- r = (r & ~0xF) | div;
- ctrl_outl(r, clk->arch_flags);
- return 0;
-}
-
-static void sh7722_siu_recalc(struct clk *clk)
-{
- unsigned long r;
-
- r = ctrl_inl(clk->arch_flags);
- clk->rate = clk->parent->rate * 2 / divisors2[r & 0xF];
-}
-
-static struct clk_ops sh7722_siu_clk_ops = {
- .recalc = sh7722_siu_recalc,
- .set_rate = sh7722_siu_set_rate,
- .enable = sh7722_siu_enable,
- .disable = sh7722_siu_disable,
-};
-
static struct clk_ops sh7722_video_clk_ops = {
.recalc = sh7722_video_recalc,
.set_rate = sh7722_video_set_rate,
@@ -529,6 +533,9 @@ static struct clk sh7722_sdram_clock = {
.ops = &sh7722_frqcr_clk_ops,
};
+
+#ifndef CONFIG_CPU_SUBTYPE_SH7343
+
/*
* these three clocks - SIU A, SIU B, IrDA - share the same clk_ops
* methods of clk_ops determine which register they should access by
@@ -553,6 +560,7 @@ static struct clk sh7722_irda_clock = {
.ops = &sh7722_siu_clk_ops,
};
#endif
+#endif /* CONFIG_CPU_SUBTYPE_SH7343 */
static struct clk sh7722_video_clock = {
.name = "video_clk",
@@ -673,11 +681,13 @@ static struct clk *sh7722_clocks[] = {
&sh7722_sh_clock,
&sh7722_peripheral_clock,
&sh7722_sdram_clock,
+#ifndef CONFIG_CPU_SUBTYPE_SH7343
&sh7722_siu_a_clock,
&sh7722_siu_b_clock,
#if defined(CONFIG_CPU_SUBTYPE_SH7722)
&sh7722_irda_clock,
#endif
+#endif
&sh7722_video_clock,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 15:48:28 +0000