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Message-Id: <1519071723-31790-23-git-send-email-david@lechnology.com>
Date: Mon, 19 Feb 2018 14:21:43 -0600
From: David Lechner <david@...hnology.com>
To: linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Cc: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...eaurora.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Sekhar Nori <nsekhar@...com>,
Kevin Hilman <khilman@...nel.org>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Adam Ford <aford173@...il.com>, linux-kernel@...r.kernel.org,
David Lechner <david@...hnology.com>
Subject: [PATCH v7 22/42] ARM: davinci: da850: add new clock init using common clock framework
This adds the new board-specific clock init in mach-davinci/da850.c
using the new common clock framework drivers.
The #ifdefs are needed to prevent compile errors until the entire
ARCH_DAVINCI is converted.
Also clean up the #includes since we are adding some here.
Some CFGCHIP macros were removed because we are now including
linux/mfd/da8xx-cfgchip.h which defines the same values.
Signed-off-by: David Lechner <david@...hnology.com>
---
v7 changes:
- add clock platform device declarations
- register platform devices instead of registering clocks directly
- clkdev lookup is moved to drivers/clk
- add davinci prefix to commit description
v6 changes:
- add blank lines between function calls
- include da8xx_register_cfgchip()
- add async1 and async2 clock domains
arch/arm/mach-davinci/board-da850-evm.c | 2 +
arch/arm/mach-davinci/board-mityomapl138.c | 2 +
arch/arm/mach-davinci/board-omapl138-hawk.c | 2 +
arch/arm/mach-davinci/da850.c | 143 +++++++++++++++++++++++++---
arch/arm/mach-davinci/da8xx-dt.c | 2 +
arch/arm/mach-davinci/include/mach/da8xx.h | 1 +
6 files changed, 139 insertions(+), 13 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 3063478..78a670a 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -1334,6 +1334,8 @@ static __init void da850_evm_init(void)
{
int ret;
+ da850_register_clocks();
+
ret = da850_register_gpio();
if (ret)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index d1c8548..f442784 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -502,6 +502,8 @@ static void __init mityomapl138_init(void)
{
int ret;
+ da850_register_clocks();
+
/* for now, no special EDMA channels are reserved */
ret = da850_register_edma(NULL);
if (ret)
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index e2ba9da..6a4e486 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -281,6 +281,8 @@ static __init void omapl138_hawk_init(void)
{
int ret;
+ da850_register_clocks();
+
ret = da850_register_gpio();
if (ret)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 1dbf01c..9086f2b 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -11,39 +11,43 @@
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
+
+#include <linux/clk-provider.h>
#include <linux/clkdev.h>
+#include <linux/cpufreq.h>
#include <linux/gpio.h>
#include <linux/init.h>
-#include <linux/clk.h>
+#include <linux/mfd/da8xx-cfgchip.h>
+#include <linux/platform_data/clk-da8xx-cfgchip.h>
+#include <linux/platform_data/gpio-davinci.h>
#include <linux/platform_device.h>
-#include <linux/cpufreq.h>
+#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
-#include <linux/platform_data/gpio-davinci.h>
#include <asm/mach/map.h>
-#include "psc.h"
-#include <mach/irqs.h>
-#include <mach/cputype.h>
#include <mach/common.h>
-#include <mach/time.h>
-#include <mach/da8xx.h>
#include <mach/cpufreq.h>
+#include <mach/cputype.h>
+#include <mach/da8xx.h>
+#include <mach/irqs.h>
#include <mach/pm.h>
+#include <mach/time.h>
-#include "clock.h"
#include "mux.h"
+#ifndef CONFIG_COMMON_CLK
+#include "clock.h"
+#include "psc.h"
+#endif
+
#define DA850_PLL1_BASE 0x01e1a000
#define DA850_TIMER64P2_BASE 0x01f0c000
#define DA850_TIMER64P3_BASE 0x01f0d000
#define DA850_REF_FREQ 24000000
-#define CFGCHIP3_ASYNC3_CLKSRC BIT(4)
-#define CFGCHIP3_PLL1_MASTER_LOCK BIT(5)
-#define CFGCHIP0_PLL_MASTER_LOCK BIT(4)
-
+#ifndef CONFIG_COMMON_CLK
static int da850_set_armrate(struct clk *clk, unsigned long rate);
static int da850_round_armrate(struct clk *clk, unsigned long rate);
static int da850_set_pll0rate(struct clk *clk, unsigned long armrate);
@@ -583,6 +587,7 @@ static struct clk_lookup da850_clks[] = {
CLK("ecap.2", "fck", &ecap2_clk),
CLK(NULL, NULL, NULL),
};
+#endif
/*
* Device specific mux setup
@@ -1170,6 +1175,7 @@ int da850_register_cpufreq(char *async_clk)
return platform_device_register(&da850_cpufreq_device);
}
+#ifndef CONFIG_COMMON_CLK
static int da850_round_armrate(struct clk *clk, unsigned long rate)
{
int ret = 0, diff;
@@ -1232,12 +1238,14 @@ static int da850_set_pll0rate(struct clk *clk, unsigned long rate)
return 0;
}
+#endif /* CONFIG_COMMON_CLK */
#else
int __init da850_register_cpufreq(char *async_clk)
{
return 0;
}
+#ifndef CONFIG_COMMON_CLK
static int da850_set_armrate(struct clk *clk, unsigned long rate)
{
return -EINVAL;
@@ -1252,6 +1260,7 @@ static int da850_round_armrate(struct clk *clk, unsigned long rate)
{
return clk->rate;
}
+#endif /* CONFIG_COMMON_CLK */
#endif
/* VPIF resource, platform data */
@@ -1395,6 +1404,114 @@ void __init da850_init(void)
void __init da850_init_time(void)
{
+#ifdef CONFIG_COMMON_CLK
+ struct clk *clk;
+
+ clk = clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DA850_REF_FREQ);
+
+ davinci_timer_init(clk);
+#else
davinci_clk_init(da850_clks);
davinci_timer_init(&timerp64_0_clk);
+#endif
+}
+
+static struct resource da850_pll0_resources[] = {
+ {
+ .start = DA8XX_PLL0_BASE,
+ .end = DA8XX_PLL0_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device da850_pll0_device = {
+ .name = "da850-pll0",
+ .id = -1,
+ .resource = da850_pll0_resources,
+ .num_resources = ARRAY_SIZE(da850_pll0_resources),
+};
+
+static struct resource da850_pll1_resources[] = {
+ {
+ .start = DA850_PLL1_BASE,
+ .end = DA850_PLL1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device da850_pll1_device = {
+ .name = "da850-pll1",
+ .id = -1,
+ .resource = da850_pll1_resources,
+ .num_resources = ARRAY_SIZE(da850_pll1_resources),
+};
+
+static struct resource da850_psc0_resources[] = {
+ {
+ .start = DA8XX_PSC0_BASE,
+ .end = DA8XX_PSC0_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device da850_psc0_device = {
+ .name = "da850-psc0",
+ .id = -1,
+ .resource = da850_psc0_resources,
+ .num_resources = ARRAY_SIZE(da850_psc0_resources),
+};
+
+static struct resource da850_psc1_resources[] = {
+ {
+ .start = DA8XX_PSC1_BASE,
+ .end = DA8XX_PSC1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device da850_psc1_device = {
+ .name = "da850-psc1",
+ .id = -1,
+ .resource = da850_psc1_resources,
+ .num_resources = ARRAY_SIZE(da850_psc1_resources),
+};
+
+static struct platform_device da850_async1_clksrc_device = {
+ .name = "da850-async1-clksrc",
+ .id = -1,
+};
+
+static struct platform_device da850_async3_clksrc_device = {
+ .name = "da850-async3-clksrc",
+ .id = -1,
+};
+
+static struct platform_device da830_tbclksync_device = {
+ .name = "da830-tbclksync",
+ .id = -1,
+};
+
+void __init da850_register_clocks(void)
+{
+ static struct da8xx_cfgchip_clk_platform_data async1_pdata;
+ static struct da8xx_cfgchip_clk_platform_data async3_pdata;
+ static struct da8xx_cfgchip_clk_platform_data tbclksync_pdata;
+
+ platform_device_register(&da850_pll0_device);
+ platform_device_register(&da850_pll1_device);
+
+ async1_pdata.cfgchip = da8xx_get_cfgchip();
+ da850_async1_clksrc_device.dev.platform_data = &async1_pdata;
+ platform_device_register(&da850_async1_clksrc_device);
+
+ async3_pdata.cfgchip = da8xx_get_cfgchip();
+ da850_async3_clksrc_device.dev.platform_data = &async3_pdata;
+ platform_device_register(&da850_async3_clksrc_device);
+
+ platform_device_register(&da850_psc0_device);
+ platform_device_register(&da850_psc1_device);
+
+ tbclksync_pdata.cfgchip = da8xx_get_cfgchip();
+ da830_tbclksync_device.dev.platform_data = &tbclksync_pdata;
+ platform_device_register(&da830_tbclksync_device);
}
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index ab199f4..91dd9cb 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -67,6 +67,8 @@ static void __init da850_init_machine(void)
int ret;
+ da850_register_clocks();
+
ret = da8xx_register_usb20_phy_clk(false);
if (ret)
pr_warn("%s: registering USB 2.0 PHY clock failed: %d",
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 64861ac..612e454 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -93,6 +93,7 @@ void da830_register_clocks(void);
void da850_init(void);
void da850_init_time(void);
+void da850_register_clocks(void);
int da830_register_edma(struct edma_rsv_info *rsv);
int da850_register_edma(struct edma_rsv_info *rsv[2]);
--
2.7.4
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