* [PATCH 1/3] clk: socfpga: update clk.h so for Arria10 platform to use
2015-04-03 4:40 [PATCH 0/3] clk: socfpga: Add clock driver for Arria10 dinguyen
@ 2015-04-03 4:40 ` dinguyen
2015-04-03 4:40 ` [PATCH 2/3] clk: socfpga: add a clock driver for the Arria 10 platform dinguyen
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: dinguyen @ 2015-04-03 4:40 UTC (permalink / raw)
To: sboyd, mturquette
Cc: dinh.linux, robh+dt, ijc+devicetree, galak, mark.rutland,
pawel.moll, devicetree, linux-arm-kernel, linux-kernel,
Dinh Nguyen
From: Dinh Nguyen <dinguyen@opensource.altera.com>
There are 5 possible parent clocks for the SoCFPGA Arria10. Move the define
SYSMGR_SDMMC_CTRL_SET and streq() to clk.h so that the Arria clock driver
can use.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
drivers/clk/socfpga/clk-gate.c | 4 ----
drivers/clk/socfpga/clk.h | 6 +++++-
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
index dd3a78c..607ab35 100644
--- a/drivers/clk/socfpga/clk-gate.c
+++ b/drivers/clk/socfpga/clk-gate.c
@@ -32,14 +32,10 @@
#define SOCFPGA_MMC_CLK "sdmmc_clk"
#define SOCFPGA_GPIO_DB_CLK_OFFSET 0xA8
-#define streq(a, b) (strcmp((a), (b)) == 0)
-
#define to_socfpga_gate_clk(p) container_of(p, struct socfpga_gate_clk, hw.hw)
/* SDMMC Group for System Manager defines */
#define SYSMGR_SDMMCGRP_CTRL_OFFSET 0x108
-#define SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel) \
- ((((smplsel) & 0x7) << 3) | (((drvsel) & 0x7) << 0))
static u8 socfpga_clk_get_parent(struct clk_hw *hwclk)
{
diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h
index d291f60..b09a5d5 100644
--- a/drivers/clk/socfpga/clk.h
+++ b/drivers/clk/socfpga/clk.h
@@ -26,9 +26,13 @@
#define CLKMGR_L4SRC 0x70
#define CLKMGR_PERPLL_SRC 0xAC
-#define SOCFPGA_MAX_PARENTS 3
+#define SOCFPGA_MAX_PARENTS 5
#define div_mask(width) ((1 << (width)) - 1)
+#define streq(a, b) (strcmp((a), (b)) == 0)
+#define SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel) \
+ ((((smplsel) & 0x7) << 3) | (((drvsel) & 0x7) << 0))
+
extern void __iomem *clk_mgr_base_addr;
void __init socfpga_pll_init(struct device_node *node);
--
2.2.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH 2/3] clk: socfpga: add a clock driver for the Arria 10 platform
2015-04-03 4:40 [PATCH 0/3] clk: socfpga: Add clock driver for Arria10 dinguyen
2015-04-03 4:40 ` [PATCH 1/3] clk: socfpga: update clk.h so for Arria10 platform to use dinguyen
@ 2015-04-03 4:40 ` dinguyen
2015-04-03 4:40 ` [PATCH 3/3] ARM: socfpga: dts: add clocks to the Arria10 platform dinguyen
2015-04-14 16:07 ` [PATCH 0/3] clk: socfpga: Add clock driver for Arria10 Dinh Nguyen
3 siblings, 0 replies; 5+ messages in thread
From: dinguyen @ 2015-04-03 4:40 UTC (permalink / raw)
To: sboyd, mturquette
Cc: dinh.linux, robh+dt, ijc+devicetree, galak, mark.rutland,
pawel.moll, devicetree, linux-arm-kernel, linux-kernel,
Dinh Nguyen
From: Dinh Nguyen <dinguyen@opensource.altera.com>
The clocks on the Arria 10 platform is a bit different than the Cyclone/Arria 5
platform that it should just have it's own driver.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
drivers/clk/socfpga/Makefile | 1 +
drivers/clk/socfpga/clk-gate-a10.c | 187 +++++++++++++++++++++++++++++++++++
drivers/clk/socfpga/clk-periph-a10.c | 131 ++++++++++++++++++++++++
drivers/clk/socfpga/clk-pll-a10.c | 132 +++++++++++++++++++++++++
drivers/clk/socfpga/clk.c | 7 +-
drivers/clk/socfpga/clk.h | 4 +
6 files changed, 461 insertions(+), 1 deletion(-)
create mode 100644 drivers/clk/socfpga/clk-gate-a10.c
create mode 100644 drivers/clk/socfpga/clk-periph-a10.c
create mode 100644 drivers/clk/socfpga/clk-pll-a10.c
diff --git a/drivers/clk/socfpga/Makefile b/drivers/clk/socfpga/Makefile
index 7e2d15a..d8bb239 100644
--- a/drivers/clk/socfpga/Makefile
+++ b/drivers/clk/socfpga/Makefile
@@ -2,3 +2,4 @@ obj-y += clk.o
obj-y += clk-gate.o
obj-y += clk-pll.o
obj-y += clk-periph.o
+obj-y += clk-pll-a10.o clk-periph-a10.o clk-gate-a10.o
diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c
new file mode 100644
index 0000000..7329657
--- /dev/null
+++ b/drivers/clk/socfpga/clk-gate-a10.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2015 Altera Corporation. All rights reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#include "clk.h"
+
+#define streq(a, b) (strcmp((a), (b)) == 0)
+
+#define to_socfpga_gate_clk(p) container_of(p, struct socfpga_gate_clk, hw.hw)
+
+/* SDMMC Group for System Manager defines */
+#define SYSMGR_SDMMCGRP_CTRL_OFFSET 0x28
+
+static unsigned long socfpga_gate_clk_recalc_rate(struct clk_hw *hwclk,
+ unsigned long parent_rate)
+{
+ struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
+ u32 div = 1, val;
+
+ if (socfpgaclk->fixed_div)
+ div = socfpgaclk->fixed_div;
+ else if (socfpgaclk->div_reg) {
+ val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift;
+ val &= div_mask(socfpgaclk->width);
+ div = (1 << val);
+ }
+
+ return parent_rate / div;
+}
+
+static int socfpga_clk_prepare(struct clk_hw *hwclk)
+{
+ struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
+ struct regmap *sys_mgr_base_addr;
+ int i;
+ u32 hs_timing;
+ u32 clk_phase[2];
+
+ if (socfpgaclk->clk_phase[0] || socfpgaclk->clk_phase[1]) {
+ sys_mgr_base_addr = syscon_regmap_lookup_by_compatible("altr,sys-mgr");
+ if (IS_ERR(sys_mgr_base_addr)) {
+ pr_err("%s: failed to find altr,sys-mgr regmap!\n", __func__);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < 2; i++) {
+ switch (socfpgaclk->clk_phase[i]) {
+ case 0:
+ clk_phase[i] = 0;
+ break;
+ case 45:
+ clk_phase[i] = 1;
+ break;
+ case 90:
+ clk_phase[i] = 2;
+ break;
+ case 135:
+ clk_phase[i] = 3;
+ break;
+ case 180:
+ clk_phase[i] = 4;
+ break;
+ case 225:
+ clk_phase[i] = 5;
+ break;
+ case 270:
+ clk_phase[i] = 6;
+ break;
+ case 315:
+ clk_phase[i] = 7;
+ break;
+ default:
+ clk_phase[i] = 0;
+ break;
+ }
+ }
+
+ hs_timing = SYSMGR_SDMMC_CTRL_SET(clk_phase[0], clk_phase[1]);
+ regmap_write(sys_mgr_base_addr, SYSMGR_SDMMCGRP_CTRL_OFFSET,
+ hs_timing);
+ }
+ return 0;
+}
+
+static struct clk_ops gateclk_ops = {
+ .prepare = socfpga_clk_prepare,
+ .recalc_rate = socfpga_gate_clk_recalc_rate,
+};
+
+static void __init __socfpga_gate_init(struct device_node *node,
+ const struct clk_ops *ops)
+{
+ u32 clk_gate[2];
+ u32 div_reg[3];
+ u32 clk_phase[2];
+ u32 fixed_div;
+ struct clk *clk;
+ struct socfpga_gate_clk *socfpga_clk;
+ const char *clk_name = node->name;
+ const char *parent_name[SOCFPGA_MAX_PARENTS];
+ struct clk_init_data init;
+ int rc;
+ int i = 0;
+
+ socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL);
+ if (WARN_ON(!socfpga_clk))
+ return;
+
+ rc = of_property_read_u32_array(node, "clk-gate", clk_gate, 2);
+ if (rc)
+ clk_gate[0] = 0;
+
+ if (clk_gate[0]) {
+ socfpga_clk->hw.reg = clk_mgr_a10_base_addr + clk_gate[0];
+ socfpga_clk->hw.bit_idx = clk_gate[1];
+
+ gateclk_ops.enable = clk_gate_ops.enable;
+ gateclk_ops.disable = clk_gate_ops.disable;
+ }
+
+ rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
+ if (rc)
+ socfpga_clk->fixed_div = 0;
+ else
+ socfpga_clk->fixed_div = fixed_div;
+
+ rc = of_property_read_u32_array(node, "div-reg", div_reg, 3);
+ if (!rc) {
+ socfpga_clk->div_reg = clk_mgr_a10_base_addr + div_reg[0];
+ socfpga_clk->shift = div_reg[1];
+ socfpga_clk->width = div_reg[2];
+ } else {
+ socfpga_clk->div_reg = 0;
+ }
+
+ rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2);
+ if (!rc) {
+ socfpga_clk->clk_phase[0] = clk_phase[0];
+ socfpga_clk->clk_phase[1] = clk_phase[1];
+ }
+
+ of_property_read_string(node, "clock-output-names", &clk_name);
+
+ init.name = clk_name;
+ init.ops = ops;
+ init.flags = 0;
+ while (i < SOCFPGA_MAX_PARENTS && (parent_name[i] =
+ of_clk_get_parent_name(node, i)) != NULL)
+ i++;
+
+ init.parent_names = parent_name;
+ init.num_parents = i;
+ socfpga_clk->hw.hw.init = &init;
+
+ clk = clk_register(NULL, &socfpga_clk->hw.hw);
+ if (WARN_ON(IS_ERR(clk))) {
+ kfree(socfpga_clk);
+ return;
+ }
+ rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ if (WARN_ON(rc))
+ return;
+}
+
+void __init socfpga_a10_gate_init(struct device_node *node)
+{
+ __socfpga_gate_init(node, &gateclk_ops);
+}
diff --git a/drivers/clk/socfpga/clk-periph-a10.c b/drivers/clk/socfpga/clk-periph-a10.c
new file mode 100644
index 0000000..dcc32dd
--- /dev/null
+++ b/drivers/clk/socfpga/clk-periph-a10.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2015 Altera Corporation. All rights reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/of.h>
+
+#include "clk.h"
+
+#define CLK_MGR_FREE_SHIFT 16
+#define CLK_MGR_FREE_MASK 0x7
+
+#define SOCFPGA_MPU_FREE_CLK "mpu_free_clk"
+#define SOCFPGA_NOC_FREE_CLK "noc_free_clk"
+#define SOCFPGA_SDMMC_FREE_CLK "sdmmc_free_clk"
+#define to_socfpga_periph_clk(p) container_of(p, struct socfpga_periph_clk, hw.hw)
+
+static unsigned long clk_periclk_recalc_rate(struct clk_hw *hwclk,
+ unsigned long parent_rate)
+{
+ struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk);
+ u32 div;
+
+ if (socfpgaclk->fixed_div) {
+ div = socfpgaclk->fixed_div;
+ } else if (socfpgaclk->div_reg) {
+ div = readl(socfpgaclk->div_reg) >> socfpgaclk->shift;
+ div &= div_mask(socfpgaclk->width);
+ div += 1;
+ } else {
+ div = ((readl(socfpgaclk->hw.reg) & 0x7ff) + 1);
+ }
+
+ return parent_rate / div;
+}
+
+static u8 clk_periclk_get_parent(struct clk_hw *hwclk)
+{
+ struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk);
+ u32 clk_src;
+
+ clk_src = readl(socfpgaclk->hw.reg);
+ if (streq(hwclk->init->name, SOCFPGA_MPU_FREE_CLK) ||
+ streq(hwclk->init->name, SOCFPGA_NOC_FREE_CLK) ||
+ streq(hwclk->init->name, SOCFPGA_SDMMC_FREE_CLK))
+ return (clk_src >> CLK_MGR_FREE_SHIFT) &
+ CLK_MGR_FREE_MASK;
+ else
+ return 0;
+}
+
+static const struct clk_ops periclk_ops = {
+ .recalc_rate = clk_periclk_recalc_rate,
+ .get_parent = clk_periclk_get_parent,
+};
+
+static __init void __socfpga_periph_init(struct device_node *node,
+ const struct clk_ops *ops)
+{
+ u32 reg;
+ struct clk *clk;
+ struct socfpga_periph_clk *periph_clk;
+ const char *clk_name = node->name;
+ const char *parent_name;
+ struct clk_init_data init;
+ int rc;
+ u32 fixed_div;
+ u32 div_reg[3];
+
+ of_property_read_u32(node, "reg", ®);
+
+ periph_clk = kzalloc(sizeof(*periph_clk), GFP_KERNEL);
+ if (WARN_ON(!periph_clk))
+ return;
+
+ periph_clk->hw.reg = clk_mgr_a10_base_addr + reg;
+
+ rc = of_property_read_u32_array(node, "div-reg", div_reg, 3);
+ if (!rc) {
+ periph_clk->div_reg = clk_mgr_a10_base_addr + div_reg[0];
+ periph_clk->shift = div_reg[1];
+ periph_clk->width = div_reg[2];
+ } else {
+ periph_clk->div_reg = 0;
+ }
+
+ rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
+ if (rc)
+ periph_clk->fixed_div = 0;
+ else
+ periph_clk->fixed_div = fixed_div;
+
+ of_property_read_string(node, "clock-output-names", &clk_name);
+
+ init.name = clk_name;
+ init.ops = ops;
+ init.flags = 0;
+
+ parent_name = of_clk_get_parent_name(node, 0);
+ init.num_parents = 1;
+ init.parent_names = &parent_name;
+
+ periph_clk->hw.hw.init = &init;
+
+ clk = clk_register(NULL, &periph_clk->hw.hw);
+ if (WARN_ON(IS_ERR(clk))) {
+ kfree(periph_clk);
+ return;
+ }
+ rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+
+}
+
+void __init socfpga_a10_periph_init(struct device_node *node)
+{
+ __socfpga_periph_init(node, &periclk_ops);
+}
diff --git a/drivers/clk/socfpga/clk-pll-a10.c b/drivers/clk/socfpga/clk-pll-a10.c
new file mode 100644
index 0000000..2adc2f5
--- /dev/null
+++ b/drivers/clk/socfpga/clk-pll-a10.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2015 Altera Corporation. All rights reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include "clk.h"
+
+/* Clock Manager offsets */
+#define CLK_MGR_PLL_CLK_SRC_SHIFT 8
+#define CLK_MGR_PLL_CLK_SRC_MASK 0x3
+
+/* Clock bypass bits */
+#define SOCFPGA_PLL_BG_PWRDWN 0
+#define SOCFPGA_PLL_PWR_DOWN 1
+#define SOCFPGA_PLL_EXT_ENA 2
+#define SOCFPGA_PLL_DIVF_MASK 0x00001FFF
+#define SOCFPGA_PLL_DIVF_SHIFT 0
+#define SOCFPGA_PLL_DIVQ_MASK 0x003F0000
+#define SOCFPGA_PLL_DIVQ_SHIFT 16
+#define SOCFGPA_MAX_PARENTS 5
+
+#define SOCFPGA_MAIN_PLL_CLK "main_pll"
+#define SOCFPGA_PERIP_PLL_CLK "periph_pll"
+
+#define to_socfpga_clk(p) container_of(p, struct socfpga_pll, hw.hw)
+
+void __iomem *clk_mgr_a10_base_addr;
+
+static unsigned long clk_pll_recalc_rate(struct clk_hw *hwclk,
+ unsigned long parent_rate)
+{
+ struct socfpga_pll *socfpgaclk = to_socfpga_clk(hwclk);
+ unsigned long divf, divq, reg;
+ unsigned long long vco_freq;
+
+ /* read VCO1 reg for numerator and denominator */
+ reg = readl(socfpgaclk->hw.reg + 0x4);
+ divf = (reg & SOCFPGA_PLL_DIVF_MASK) >> SOCFPGA_PLL_DIVF_SHIFT;
+ divq = (reg & SOCFPGA_PLL_DIVQ_MASK) >> SOCFPGA_PLL_DIVQ_SHIFT;
+ vco_freq = (unsigned long long)parent_rate * (divf + 1);
+ do_div(vco_freq, (1 + divq));
+ return (unsigned long)vco_freq;
+}
+
+static u8 clk_pll_get_parent(struct clk_hw *hwclk)
+{
+ struct socfpga_pll *socfpgaclk = to_socfpga_clk(hwclk);
+ u32 pll_src;
+
+ pll_src = readl(socfpgaclk->hw.reg);
+
+ return (pll_src >> CLK_MGR_PLL_CLK_SRC_SHIFT) &
+ CLK_MGR_PLL_CLK_SRC_MASK;
+}
+
+
+static struct clk_ops clk_pll_ops = {
+ .recalc_rate = clk_pll_recalc_rate,
+ .get_parent = clk_pll_get_parent,
+};
+
+static __init struct clk *__socfpga_pll_init(struct device_node *node,
+ const struct clk_ops *ops)
+{
+ u32 reg;
+ struct clk *clk;
+ struct socfpga_pll *pll_clk;
+ const char *clk_name = node->name;
+ const char *parent_name[SOCFGPA_MAX_PARENTS];
+ struct clk_init_data init;
+ struct device_node *clkmgr_np;
+ int rc;
+ int i = 0;
+
+ of_property_read_u32(node, "reg", ®);
+
+ pll_clk = kzalloc(sizeof(*pll_clk), GFP_KERNEL);
+ if (WARN_ON(!pll_clk))
+ return NULL;
+
+ clkmgr_np = of_find_compatible_node(NULL, NULL, "altr,clk-mgr");
+ clk_mgr_a10_base_addr = of_iomap(clkmgr_np, 0);
+ BUG_ON(!clk_mgr_a10_base_addr);
+ pll_clk->hw.reg = clk_mgr_a10_base_addr + reg;
+
+ of_property_read_string(node, "clock-output-names", &clk_name);
+
+ init.name = clk_name;
+ init.ops = ops;
+ init.flags = 0;
+
+ while (i < SOCFGPA_MAX_PARENTS && (parent_name[i] =
+ of_clk_get_parent_name(node, i)) != NULL)
+ i++;
+ init.num_parents = i;
+ init.parent_names = parent_name;
+ pll_clk->hw.hw.init = &init;
+
+ pll_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA;
+ clk_pll_ops.enable = clk_gate_ops.enable;
+ clk_pll_ops.disable = clk_gate_ops.disable;
+
+ clk = clk_register(NULL, &pll_clk->hw.hw);
+ if (WARN_ON(IS_ERR(clk))) {
+ kfree(pll_clk);
+ return NULL;
+ }
+ rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ return clk;
+}
+
+void __init socfpga_a10_pll_init(struct device_node *node)
+{
+ __socfpga_pll_init(node, &clk_pll_ops);
+}
diff --git a/drivers/clk/socfpga/clk.c b/drivers/clk/socfpga/clk.c
index 43db947..7564d2e 100644
--- a/drivers/clk/socfpga/clk.c
+++ b/drivers/clk/socfpga/clk.c
@@ -24,4 +24,9 @@
CLK_OF_DECLARE(socfpga_pll_clk, "altr,socfpga-pll-clock", socfpga_pll_init);
CLK_OF_DECLARE(socfpga_perip_clk, "altr,socfpga-perip-clk", socfpga_periph_init);
CLK_OF_DECLARE(socfpga_gate_clk, "altr,socfpga-gate-clk", socfpga_gate_init);
-
+CLK_OF_DECLARE(socfpga_a10_pll_clk, "altr,socfpga-a10-pll-clock",
+ socfpga_a10_pll_init);
+CLK_OF_DECLARE(socfpga_a10_perip_clk, "altr,socfpga-a10-perip-clk",
+ socfpga_a10_periph_init);
+CLK_OF_DECLARE(socfpga_a10_gate_clk, "altr,socfpga-a10-gate-clk",
+ socfpga_a10_gate_init);
diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h
index b09a5d5..6989847 100644
--- a/drivers/clk/socfpga/clk.h
+++ b/drivers/clk/socfpga/clk.h
@@ -34,10 +34,14 @@
((((smplsel) & 0x7) << 3) | (((drvsel) & 0x7) << 0))
extern void __iomem *clk_mgr_base_addr;
+extern void __iomem *clk_mgr_a10_base_addr;
void __init socfpga_pll_init(struct device_node *node);
void __init socfpga_periph_init(struct device_node *node);
void __init socfpga_gate_init(struct device_node *node);
+void __init socfpga_a10_pll_init(struct device_node *node);
+void __init socfpga_a10_periph_init(struct device_node *node);
+void __init socfpga_a10_gate_init(struct device_node *node);
struct socfpga_pll {
struct clk_gate hw;
--
2.2.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH 3/3] ARM: socfpga: dts: add clocks to the Arria10 platform
2015-04-03 4:40 [PATCH 0/3] clk: socfpga: Add clock driver for Arria10 dinguyen
2015-04-03 4:40 ` [PATCH 1/3] clk: socfpga: update clk.h so for Arria10 platform to use dinguyen
2015-04-03 4:40 ` [PATCH 2/3] clk: socfpga: add a clock driver for the Arria 10 platform dinguyen
@ 2015-04-03 4:40 ` dinguyen
2015-04-14 16:07 ` [PATCH 0/3] clk: socfpga: Add clock driver for Arria10 Dinh Nguyen
3 siblings, 0 replies; 5+ messages in thread
From: dinguyen @ 2015-04-03 4:40 UTC (permalink / raw)
To: sboyd, mturquette
Cc: dinh.linux, robh+dt, ijc+devicetree, galak, mark.rutland,
pawel.moll, devicetree, linux-arm-kernel, linux-kernel,
Dinh Nguyen
From: Dinh Nguyen <dinguyen@opensource.altera.com>
Add all the clock nodes for the Arria10 platform. At the same time, update
the peripherals with their respective clocks property.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
arch/arm/boot/dts/socfpga_arria10.dtsi | 298 ++++++++++++++++++++++++++++++++-
1 file changed, 294 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/socfpga_arria10.dtsi b/arch/arm/boot/dts/socfpga_arria10.dtsi
index 8a05c47..341cb28 100644
--- a/arch/arm/boot/dts/socfpga_arria10.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10.dtsi
@@ -98,6 +98,21 @@
#address-cells = <1>;
#size-cells = <0>;
+ cb_intosc_hs_div2_clk: cb_intosc_hs_div2_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ };
+
+ cb_intosc_ls_clk: cb_intosc_ls_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ };
+
+ f2s_free_clk: f2s_free_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ };
+
osc1: osc1 {
#clock-cells = <0>;
compatible = "fixed-clock";
@@ -107,16 +122,279 @@
#address-cells = <1>;
#size-cells = <0>;
#clock-cells = <0>;
- compatible = "altr,socfpga-pll-clock";
- clocks = <&osc1>;
+ compatible = "altr,socfpga-a10-pll-clock";
+ clocks = <&osc1>, <&cb_intosc_ls_clk>,
+ <&f2s_free_clk>;
+ reg = <0x40>;
+
+ main_mpu_base_clk: main_mpu_base_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ div-reg = <0x140 0 11>;
+ };
+
+ main_noc_base_clk: main_noc_base_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ div-reg = <0x144 0 11>;
+ };
+
+ main_emaca_clk: main_emaca_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x68>;
+ };
+
+ main_emacb_clk: main_emacb_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x6C>;
+ };
+
+ main_emac_ptp_clk: main_emac_ptp_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x70>;
+ };
+
+ main_gpio_db_clk: main_gpio_db_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x74>;
+ };
+
+ main_sdmmc_clk: main_sdmmc_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk"
+;
+ clocks = <&main_pll>;
+ reg = <0x78>;
+ };
+
+ main_s2f_usr0_clk: main_s2f_usr0_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x7C>;
+ };
+
+ main_s2f_usr1_clk: main_s2f_usr1_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x80>;
+ };
+
+ main_hmc_pll_ref_clk: main_hmc_pll_ref_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x84>;
+ };
+
+ main_periph_ref_clk: main_periph_ref_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_pll>;
+ reg = <0x9C>;
+ };
};
periph_pll: periph_pll {
#address-cells = <1>;
#size-cells = <0>;
#clock-cells = <0>;
- compatible = "altr,socfpga-pll-clock";
- clocks = <&osc1>;
+ compatible = "altr,socfpga-a10-pll-clock";
+ clocks = <&osc1>, <&cb_intosc_ls_clk>,
+ <&f2s_free_clk>, <&main_periph_ref_clk>;
+ reg = <0xC0>;
+
+ peri_mpu_base_clk: peri_mpu_base_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ div-reg = <0x140 16 11>;
+ };
+
+ peri_noc_base_clk: peri_noc_base_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ div-reg = <0x144 16 11>;
+ };
+
+ peri_emaca_clk: peri_emaca_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0xE8>;
+ };
+
+ peri_emacb_clk: peri_emacb_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0xEC>;
+ };
+
+ peri_emac_ptp_clk: peri_emac_ptp_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0xF0>;
+ };
+
+ peri_gpio_db_clk: peri_gpio_db_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0xF4>;
+ };
+
+ peri_sdmmc_clk: peri_sdmmc_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0xF8>;
+ };
+
+ peri_s2f_usr0_clk: peri_s2f_usr0_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0xFC>;
+ };
+
+ peri_s2f_usr1_clk: peri_s2f_usr1_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0x100>;
+ };
+
+ peri_hmc_pll_ref_clk: peri_hmc_pll_ref_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&periph_pll>;
+ reg = <0x104>;
+ };
+ };
+
+ mpu_free_clk: mpu_free_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_mpu_base_clk>, <&peri_mpu_base_clk>,
+ <&osc1>, <&cb_intosc_hs_div2_clk>,
+ <&f2s_free_clk>;
+ reg = <0x60>;
+ };
+
+ noc_free_clk: noc_free_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_noc_base_clk>, <&peri_noc_base_clk>,
+ <&osc1>, <&cb_intosc_hs_div2_clk>,
+ <&f2s_free_clk>;
+ reg = <0x64>;
+ };
+
+ s2f_user1_free_clk: s2f_user1_free_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_s2f_usr1_clk>, <&peri_s2f_usr1_clk>,
+ <&osc1>, <&cb_intosc_hs_div2_clk>,
+ <&f2s_free_clk>;
+ reg = <0x104>;
+ };
+
+ sdmmc_free_clk: sdmmc_free_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-perip-clk";
+ clocks = <&main_sdmmc_clk>, <&peri_sdmmc_clk>,
+ <&osc1>, <&cb_intosc_hs_div2_clk>,
+ <&f2s_free_clk>;
+ fixed-divider = <4>;
+ reg = <0xF8>;
+ };
+
+ l4_main_clk: l4_main_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&noc_free_clk>;
+ div-reg = <0xA8 0 2>;
+ clk-gate = <0x48 1>;
+ };
+
+ l4_mp_clk: l4_mp_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&noc_free_clk>;
+ div-reg = <0xA8 8 2>;
+ clk-gate = <0x48 2>;
+ };
+
+ l4_sp_clk: l4_sp_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&noc_free_clk>;
+ div-reg = <0xA8 16 2>;
+ clk-gate = <0x48 3>;
+ };
+
+ mpu_periph_clk: mpu_periph_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&mpu_free_clk>;
+ fixed-divider = <4>;
+ clk-gate = <0x48 0>;
+ };
+
+ sdmmc_clk: sdmmc_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&sdmmc_free_clk>;
+ clk-gate = <0xC8 5>;
+ };
+
+ qspi_clk: qspi_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&l4_main_clk>;
+ clk-gate = <0xC8 11>;
+ };
+
+ nand_clk: nand_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&l4_mp_clk>;
+ clk-gate = <0xC8 10>;
+ };
+
+ spi_m_clk: spi_m_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&l4_main_clk>;
+ clk-gate = <0xC8 9>;
+ };
+
+ usb_clk: usb_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&l4_mp_clk>;
+ clk-gate = <0xC8 8>;
+ };
+
+ s2f_usr1_clk: s2f_usr1_clk {
+ #clock-cells = <0>;
+ compatible = "altr,socfpga-a10-gate-clk";
+ clocks = <&peri_s2f_usr1_clk>;
+ clk-gate = <0xC8 6>;
};
};
};
@@ -268,6 +546,8 @@
reg = <0xff808000 0x1000>;
interrupts = <0 98 IRQ_TYPE_LEVEL_HIGH>;
fifo-depth = <0x400>;
+ clocks = <&l4_mp_clk>, <&sdmmc_free_clk>;
+ clock-names = "biu", "ciu";
};
ocram: sram@ffe00000 {
@@ -291,24 +571,31 @@
compatible = "arm,cortex-a9-twd-timer";
reg = <0xffffc600 0x100>;
interrupts = <1 13 0xf04>;
+ clocks = <&mpu_periph_clk>;
};
timer0: timer0@ffc02700 {
compatible = "snps,dw-apb-timer";
interrupts = <0 115 IRQ_TYPE_LEVEL_HIGH>;
reg = <0xffc02700 0x100>;
+ clocks = <&l4_sp_clk>;
+ clock-names = "timer";
};
timer1: timer1@ffc02800 {
compatible = "snps,dw-apb-timer";
interrupts = <0 116 IRQ_TYPE_LEVEL_HIGH>;
reg = <0xffc02800 0x100>;
+ clocks = <&l4_sp_clk>;
+ clock-names = "timer";
};
timer2: timer2@ffd00000 {
compatible = "snps,dw-apb-timer";
interrupts = <0 117 IRQ_TYPE_LEVEL_HIGH>;
reg = <0xffd00000 0x100>;
+ clocks = <&l4_sp_clk>;
+ clock-names = "timer";
};
timer3: timer3@ffd00100 {
@@ -331,6 +618,7 @@
interrupts = <0 111 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
+ clocks = <&l4_sp_clk>;
};
usbphy0: usbphy@0 {
@@ -343,6 +631,8 @@
compatible = "snps,dwc2";
reg = <0xffb00000 0xffff>;
interrupts = <0 95 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&usb_clk>;
+ clock-names = "otg";
phys = <&usbphy0>;
phy-names = "usb2-phy";
status = "disabled";
--
2.2.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH 0/3] clk: socfpga: Add clock driver for Arria10
2015-04-03 4:40 [PATCH 0/3] clk: socfpga: Add clock driver for Arria10 dinguyen
` (2 preceding siblings ...)
2015-04-03 4:40 ` [PATCH 3/3] ARM: socfpga: dts: add clocks to the Arria10 platform dinguyen
@ 2015-04-14 16:07 ` Dinh Nguyen
3 siblings, 0 replies; 5+ messages in thread
From: Dinh Nguyen @ 2015-04-14 16:07 UTC (permalink / raw)
To: sboyd, mturquette
Cc: dinh.linux, robh+dt, ijc+devicetree, galak, mark.rutland,
pawel.moll, devicetree, linux-arm-kernel, linux-kernel
Hi Mike, Stephen,
On 04/02/2015 11:40 PM, dinguyen@opensource.altera.com wrote:
> From: Dinh Nguyen <dinguyen@opensource.altera.com>
>
> Hi,
>
> This patch series add the clock driver for the Arria10 platform. Although the
> Arria10 SoC's clock framework has some similarities the Cyclone/Arria 5, the
> differences are enough to warrant it's own driver, rather than polluting the
> existing driver with platform lookups.
>
> Dinh Nguyen (3):
> clk: socfpga: update clk.h so for Arria10 platform to use
> clk: socfpga: add a clock driver for the Arria 10 platform
> ARM: socfpga: dts: add clocks to the Arria10 platform
>
> arch/arm/boot/dts/socfpga_arria10.dtsi | 298 ++++++++++++++++++++++++++++++++-
> drivers/clk/socfpga/Makefile | 1 +
> drivers/clk/socfpga/clk-gate-a10.c | 187 +++++++++++++++++++++
> drivers/clk/socfpga/clk-gate.c | 4 -
> drivers/clk/socfpga/clk-periph-a10.c | 131 +++++++++++++++
> drivers/clk/socfpga/clk-pll-a10.c | 132 +++++++++++++++
> drivers/clk/socfpga/clk.c | 7 +-
> drivers/clk/socfpga/clk.h | 10 +-
> 8 files changed, 760 insertions(+), 10 deletions(-)
> create mode 100644 drivers/clk/socfpga/clk-gate-a10.c
> create mode 100644 drivers/clk/socfpga/clk-periph-a10.c
> create mode 100644 drivers/clk/socfpga/clk-pll-a10.c
>
Just wondering if you have had a chance to look over this patch series?
Thanks,
Dinh
^ permalink raw reply [flat|nested] 5+ messages in thread