aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/Kconfig2
-rw-r--r--arch/sh/kernel/cpu/sh4a/Makefile2
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7366.c211
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7722.c42
4 files changed, 214 insertions, 43 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 39807146d25..dbc10ff495a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -516,7 +516,7 @@ config SH_CLK_CPG
config SH_CLK_CPG_LEGACY
depends on SH_CLK_CPG
- def_bool y if !CPU_SUBTYPE_SH7785 && !CPU_SUBTYPE_SH7723 && !CPU_SUBTYPE_SH7724 && !CPU_SUBTYPE_SH7343
+ def_bool y if !CPU_SUBTYPE_SH7785 && !CPU_SUBTYPE_SH7723 && !CPU_SUBTYPE_SH7724 && !CPU_SUBTYPE_SH7343 && !CPU_SUBTYPE_SH7366
config SH_CLK_MD
int "CPU Mode Pin Setting"
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index f4415f9ebac..96ea09ca8cc 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -28,7 +28,7 @@ clock-$(CONFIG_CPU_SUBTYPE_SH7343) := clock-sh7343.o
clock-$(CONFIG_CPU_SUBTYPE_SH7722) := clock-sh7722.o
clock-$(CONFIG_CPU_SUBTYPE_SH7723) := clock-sh7723.o
clock-$(CONFIG_CPU_SUBTYPE_SH7724) := clock-sh7724.o
-clock-$(CONFIG_CPU_SUBTYPE_SH7366) := clock-sh7722.o
+clock-$(CONFIG_CPU_SUBTYPE_SH7366) := clock-sh7366.o
clock-$(CONFIG_CPU_SUBTYPE_SHX3) := clock-shx3.o
# Pinmux setup
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7366.c b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c
new file mode 100644
index 00000000000..a95ebaba095
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c
@@ -0,0 +1,211 @@
+/*
+ * arch/sh/kernel/cpu/sh4a/clock-sh7366.c
+ *
+ * SH7366 clock framework support
+ *
+ * Copyright (C) 2009 Magnus Damm
+ *
+ * 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
+ *
+ * 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/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <asm/clock.h>
+
+/* SH7366 registers */
+#define FRQCR 0xa4150000
+#define VCLKCR 0xa4150004
+#define SCLKACR 0xa4150008
+#define SCLKBCR 0xa415000c
+#define PLLCR 0xa4150024
+#define MSTPCR0 0xa4150030
+#define MSTPCR1 0xa4150034
+#define MSTPCR2 0xa4150038
+#define DLLFRQ 0xa4150050
+
+/* Fixed 32 KHz root clock for RTC and Power Management purposes */
+static struct clk r_clk = {
+ .name = "rclk",
+ .id = -1,
+ .rate = 32768,
+};
+
+/*
+ * Default rate for the root input clock, reset this with clk_set_rate()
+ * from the platform code.
+ */
+struct clk extal_clk = {
+ .name = "extal",
+ .id = -1,
+ .rate = 33333333,
+};
+
+/* The dll block multiplies the 32khz r_clk, may be used instead of extal */
+static unsigned long dll_recalc(struct clk *clk)
+{
+ unsigned long mult;
+
+ if (__raw_readl(PLLCR) & 0x1000)
+ mult = __raw_readl(DLLFRQ);
+ else
+ mult = 0;
+
+ return clk->parent->rate * mult;
+}
+
+static struct clk_ops dll_clk_ops = {
+ .recalc = dll_recalc,
+};
+
+static struct clk dll_clk = {
+ .name = "dll_clk",
+ .id = -1,
+ .ops = &dll_clk_ops,
+ .parent = &r_clk,
+ .flags = CLK_ENABLE_ON_INIT,
+};
+
+static unsigned long pll_recalc(struct clk *clk)
+{
+ unsigned long mult = 1;
+ unsigned long div = 1;
+
+ if (__raw_readl(PLLCR) & 0x4000)
+ mult = (((__raw_readl(FRQCR) >> 24) & 0x1f) + 1);
+ else
+ div = 2;
+
+ return (clk->parent->rate * mult) / div;
+}
+
+static struct clk_ops pll_clk_ops = {
+ .recalc = pll_recalc,
+};
+
+static struct clk pll_clk = {
+ .name = "pll_clk",
+ .id = -1,
+ .ops = &pll_clk_ops,
+ .flags = CLK_ENABLE_ON_INIT,
+};
+
+struct clk *main_clks[] = {
+ &r_clk,
+ &extal_clk,
+ &dll_clk,
+ &pll_clk,
+};
+
+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 };
+
+static struct clk_div_mult_table div4_table = {
+ .divisors = divisors,
+ .nr_divisors = ARRAY_SIZE(divisors),
+ .multipliers = multipliers,
+ .nr_multipliers = ARRAY_SIZE(multipliers),
+};
+
+enum { DIV4_I, DIV4_U, DIV4_SH, DIV4_B, DIV4_B3, DIV4_P,
+ DIV4_SIUA, DIV4_SIUB, DIV4_NR };
+
+#define DIV4(_str, _reg, _bit, _mask, _flags) \
+ SH_CLK_DIV4(_str, &pll_clk, _reg, _bit, _mask, _flags)
+
+struct clk div4_clks[DIV4_NR] = {
+ [DIV4_I] = DIV4("cpu_clk", FRQCR, 20, 0x1fef, CLK_ENABLE_ON_INIT),
+ [DIV4_U] = DIV4("umem_clk", FRQCR, 16, 0x1fff, CLK_ENABLE_ON_INIT),
+ [DIV4_SH] = DIV4("shyway_clk", FRQCR, 12, 0x1fff, CLK_ENABLE_ON_INIT),
+ [DIV4_B] = DIV4("bus_clk", FRQCR, 8, 0x1fff, CLK_ENABLE_ON_INIT),
+ [DIV4_B3] = DIV4("b3_clk", FRQCR, 4, 0x1fff, CLK_ENABLE_ON_INIT),
+ [DIV4_P] = DIV4("peripheral_clk", FRQCR, 0, 0x1fff, 0),
+ [DIV4_SIUA] = DIV4("siua_clk", SCLKACR, 0, 0x1fff, 0),
+ [DIV4_SIUB] = DIV4("siub_clk", SCLKBCR, 0, 0x1fff, 0),
+};
+
+struct clk div6_clks[] = {
+ SH_CLK_DIV6("video_clk", &pll_clk, VCLKCR, 0),
+};
+
+#define MSTP(_str, _parent, _reg, _bit, _flags) \
+ SH_CLK_MSTP32(_str, -1, _parent, _reg, _bit, _flags)
+
+static struct clk mstp_clks[] = {
+ /* See page 52 of Datasheet V0.40: Overview -> Block Diagram */
+ MSTP("tlb0", &div4_clks[DIV4_I], MSTPCR0, 31, CLK_ENABLE_ON_INIT),
+ MSTP("ic0", &div4_clks[DIV4_I], MSTPCR0, 30, CLK_ENABLE_ON_INIT),
+ MSTP("oc0", &div4_clks[DIV4_I], MSTPCR0, 29, CLK_ENABLE_ON_INIT),
+ MSTP("rsmem0", &div4_clks[DIV4_SH], MSTPCR0, 28, CLK_ENABLE_ON_INIT),
+ MSTP("xymem0", &div4_clks[DIV4_B], MSTPCR0, 26, CLK_ENABLE_ON_INIT),
+ MSTP("intc3", &div4_clks[DIV4_P], MSTPCR0, 23, 0),
+ MSTP("intc0", &div4_clks[DIV4_P], MSTPCR0, 22, 0),
+ MSTP("dmac0", &div4_clks[DIV4_P], MSTPCR0, 21, 0),
+ MSTP("sh0", &div4_clks[DIV4_P], MSTPCR0, 20, 0),
+ MSTP("hudi0", &div4_clks[DIV4_P], MSTPCR0, 19, 0),
+ MSTP("ubc0", &div4_clks[DIV4_P], MSTPCR0, 17, 0),
+ MSTP("tmu0", &div4_clks[DIV4_P], MSTPCR0, 15, 0),
+ MSTP("cmt0", &r_clk, MSTPCR0, 14, 0),
+ MSTP("rwdt0", &r_clk, MSTPCR0, 13, 0),
+ MSTP("mfi0", &div4_clks[DIV4_P], MSTPCR0, 11, 0),
+ MSTP("flctl0", &div4_clks[DIV4_P], MSTPCR0, 10, 0),
+ MSTP("scif0", &div4_clks[DIV4_P], MSTPCR0, 7, 0),
+ MSTP("scif1", &div4_clks[DIV4_P], MSTPCR0, 6, 0),
+ MSTP("scif2", &div4_clks[DIV4_P], MSTPCR0, 5, 0),
+ MSTP("msiof0", &div4_clks[DIV4_P], MSTPCR0, 2, 0),
+ MSTP("sbr0", &div4_clks[DIV4_P], MSTPCR0, 1, 0),
+
+ MSTP("i2c0", &div4_clks[DIV4_P], MSTPCR1, 9, 0),
+
+ MSTP("icb0", &div4_clks[DIV4_P], MSTPCR2, 27, 0),
+ MSTP("meram0", &div4_clks[DIV4_P], MSTPCR2, 26, 0),
+ MSTP("dacy1", &div4_clks[DIV4_P], MSTPCR2, 24, 0),
+ MSTP("dacy0", &div4_clks[DIV4_P], MSTPCR2, 23, 0),
+ MSTP("tsif0", &div4_clks[DIV4_P], MSTPCR2, 22, 0),
+ MSTP("sdhi0", &div4_clks[DIV4_P], MSTPCR2, 18, 0),
+ MSTP("mmcif0", &div4_clks[DIV4_P], MSTPCR2, 17, 0),
+ MSTP("usbf0", &div4_clks[DIV4_P], MSTPCR2, 11, 0),
+ MSTP("siu0", &div4_clks[DIV4_B], MSTPCR2, 9, 0),
+ MSTP("veu1", &div4_clks[DIV4_B], MSTPCR2, 7, CLK_ENABLE_ON_INIT),
+ MSTP("vou0", &div4_clks[DIV4_B], MSTPCR2, 5, 0),
+ MSTP("beu0", &div4_clks[DIV4_B], MSTPCR2, 4, 0),
+ MSTP("ceu0", &div4_clks[DIV4_B], MSTPCR2, 3, 0),
+ MSTP("veu0", &div4_clks[DIV4_B], MSTPCR2, 2, CLK_ENABLE_ON_INIT),
+ MSTP("vpu0", &div4_clks[DIV4_B], MSTPCR2, 1, CLK_ENABLE_ON_INIT),
+ MSTP("lcdc0", &div4_clks[DIV4_B], MSTPCR2, 0, 0),
+};
+
+int __init arch_clk_init(void)
+{
+ int k, ret = 0;
+
+ /* autodetect extal or dll configuration */
+ if (__raw_readl(PLLCR) & 0x1000)
+ pll_clk.parent = &dll_clk;
+ else
+ pll_clk.parent = &extal_clk;
+
+ for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
+ ret = clk_register(main_clks[k]);
+
+ if (!ret)
+ ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
+
+ if (!ret)
+ ret = sh_clk_div6_register(div6_clks, ARRAY_SIZE(div6_clks));
+
+ if (!ret)
+ ret = sh_clk_mstp32_register(mstp_clks, ARRAY_SIZE(mstp_clks));
+
+ return ret;
+}
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
index 8aaaac240ad..6ca7c745580 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
+ * SH7722 support for the clock framework
*
* Copyright (c) 2006-2007 Nomad Global Solutions Inc
* Based on code for sh7343 by Paul Mundt
@@ -654,46 +654,6 @@ static struct clk sh7722_mstpcr_clocks[] = {
MSTPCR("vpu0", "bus_clk", 2, 1, CLK_ENABLE_ON_INIT),
MSTPCR("lcdc0", "bus_clk", 2, 0, 0),
#endif
-#if defined(CONFIG_CPU_SUBTYPE_SH7366)
- /* See page 52 of Datasheet V0.40: Overview -> Block Diagram */
- MSTPCR("tlb0", "cpu_clk", 0, 31, 0),
- MSTPCR("ic0", "cpu_clk", 0, 30, 0),
- MSTPCR("oc0", "cpu_clk", 0, 29, 0),
- MSTPCR("rsmem0", "sh_clk", 0, 28, CLK_ENABLE_ON_INIT),
- MSTPCR("xymem0", "cpu_clk", 0, 26, CLK_ENABLE_ON_INIT),
- MSTPCR("intc30", "peripheral_clk", 0, 23, 0),
- MSTPCR("intc0", "peripheral_clk", 0, 22, 0),
- MSTPCR("dmac0", "bus_clk", 0, 21, 0),
- MSTPCR("sh0", "sh_clk", 0, 20, 0),
- MSTPCR("hudi0", "peripheral_clk", 0, 19, 0),
- MSTPCR("ubc0", "cpu_clk", 0, 17, 0),
- MSTPCR("tmu0", "peripheral_clk", 0, 15, 0),
- MSTPCR("cmt0", "r_clk", 0, 14, 0),
- MSTPCR("rwdt0", "r_clk", 0, 13, 0),
- MSTPCR("flctl0", "peripheral_clk", 0, 10, 0),
- MSTPCR("scif0", "peripheral_clk", 0, 7, 0),
- MSTPCR("scif1", "bus_clk", 0, 6, 0),
- MSTPCR("scif2", "bus_clk", 0, 5, 0),
- MSTPCR("msiof0", "peripheral_clk", 0, 2, 0),
- MSTPCR("sbr0", "peripheral_clk", 0, 1, 0),
- MSTPCR("i2c0", "peripheral_clk", 1, 9, 0),
- MSTPCR("icb0", "bus_clk", 2, 27, 0),
- MSTPCR("meram0", "sh_clk", 2, 26, 0),
- MSTPCR("dacc0", "peripheral_clk", 2, 24, 0),
- MSTPCR("dacy0", "peripheral_clk", 2, 23, 0),
- MSTPCR("tsif0", "bus_clk", 2, 22, 0),
- MSTPCR("sdhi0", "bus_clk", 2, 18, 0),
- MSTPCR("mmcif0", "bus_clk", 2, 17, 0),
- MSTPCR("usb0", "bus_clk", 2, 11, 0),
- MSTPCR("siu0", "bus_clk", 2, 8, 0),
- MSTPCR("veu1", "bus_clk", 2, 7, CLK_ENABLE_ON_INIT),
- MSTPCR("vou0", "bus_clk", 2, 5, 0),
- MSTPCR("beu0", "bus_clk", 2, 4, 0),
- MSTPCR("ceu0", "bus_clk", 2, 3, 0),
- MSTPCR("veu0", "bus_clk", 2, 2, CLK_ENABLE_ON_INIT),
- MSTPCR("vpu0", "bus_clk", 2, 1, CLK_ENABLE_ON_INIT),
- MSTPCR("lcdc0", "bus_clk", 2, 0, 0),
-#endif
};
static struct clk *sh7722_clocks[] = {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 11:56:08 +0000