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Message-Id: <1521168778-27236-25-git-send-email-david@lechnology.com>
Date: Thu, 15 Mar 2018 21:52:40 -0500
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 v8 24/42] ARM: davinci: dm365: add new clock init using common clock framework
This adds the new board-specific clock init in mach-davinci/dm365.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.
Signed-off-by: David Lechner <david@...hnology.com>
---
v8 changes:
- none
v7 changes:
- add clock platform device declarations
- register platform devices instead of registering clocks directly
- add davinci prefix to commit description
v6 changes:
- add blank lines between function calls
arch/arm/mach-davinci/board-dm365-evm.c | 2 +
arch/arm/mach-davinci/davinci.h | 1 +
arch/arm/mach-davinci/dm365.c | 88 ++++++++++++++++++++++++++++-----
3 files changed, 79 insertions(+), 12 deletions(-)
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 0ac085b..36b69a1 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -741,6 +741,8 @@ static __init void dm365_evm_init(void)
{
int ret;
+ dm365_register_clocks();
+
ret = dm365_gpio_register();
if (ret)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index 6b6abf0a..c865226 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -94,6 +94,7 @@ int dm355_gpio_register(void);
/* DM365 function declarations */
void dm365_init(void);
void dm365_init_time(void);
+void dm365_register_clocks(void);
void dm365_init_asp(void);
void dm365_init_vc(void);
void dm365_init_ks(struct davinci_ks_platform_data *pdata);
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 871372a..93067e1 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -12,32 +12,35 @@
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
-#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/serial_8250.h>
-#include <linux/platform_device.h>
+#include <linux/clk-provider.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
-#include <linux/spi/spi.h>
+#include <linux/init.h>
#include <linux/platform_data/edma.h>
#include <linux/platform_data/gpio-davinci.h>
#include <linux/platform_data/keyscan-davinci.h>
#include <linux/platform_data/spi-davinci.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/spi/spi.h>
#include <asm/mach/map.h>
+#include <mach/common.h>
#include <mach/cputype.h>
-#include "psc.h"
-#include <mach/mux.h>
#include <mach/irqs.h>
-#include <mach/time.h>
+#include <mach/mux.h>
#include <mach/serial.h>
-#include <mach/common.h>
+#include <mach/time.h>
+#include "asp.h"
#include "davinci.h"
-#include "clock.h"
#include "mux.h"
-#include "asp.h"
+
+#ifndef CONFIG_COMMON_CLK
+#include "clock.h"
+#include "psc.h"
+#endif
#define DM365_REF_FREQ 24000000 /* 24 MHz on the DM365 EVM */
#define DM365_RTC_BASE 0x01c69000
@@ -54,6 +57,7 @@
#define DM365_EMAC_CNTRL_RAM_OFFSET 0x1000
#define DM365_EMAC_CNTRL_RAM_SIZE 0x2000
+#ifndef CONFIG_COMMON_CLK
static struct pll_data pll1_data = {
.num = 1,
.phys_base = DAVINCI_PLL1_BASE,
@@ -485,7 +489,7 @@ static struct clk_lookup dm365_clks[] = {
CLK(NULL, "mjcp", &mjcp_clk),
CLK(NULL, NULL, NULL),
};
-
+#endif
/*----------------------------------------------------------------------*/
#define INTMUX 0x18
@@ -1171,8 +1175,68 @@ void __init dm365_init(void)
void __init dm365_init_time(void)
{
+#ifdef CONFIG_COMMON_CLK
+ struct clk *clk;
+
+ clk = clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DM365_REF_FREQ);
+
+ davinci_timer_init(clk);
+#else
davinci_clk_init(dm365_clks);
davinci_timer_init(&timer0_clk);
+#endif
+}
+
+static struct resource dm365_pll1_resources[] = {
+ {
+ .start = DAVINCI_PLL1_BASE,
+ .end = DAVINCI_PLL1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm365_pll1_device = {
+ .name = "dm365-pll1",
+ .id = -1,
+ .resource = dm365_pll1_resources,
+ .num_resources = ARRAY_SIZE(dm365_pll1_resources),
+};
+
+static struct resource dm365_pll2_resources[] = {
+ {
+ .start = DAVINCI_PLL2_BASE,
+ .end = DAVINCI_PLL2_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm365_pll2_device = {
+ .name = "dm365-pll2",
+ .id = -1,
+ .resource = dm365_pll2_resources,
+ .num_resources = ARRAY_SIZE(dm365_pll2_resources),
+};
+
+static struct resource dm365_psc_resources[] = {
+ {
+ .start = DAVINCI_PWR_SLEEP_CNTRL_BASE,
+ .end = DAVINCI_PWR_SLEEP_CNTRL_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm365_psc_device = {
+ .name = "dm365-psc",
+ .id = -1,
+ .resource = dm365_psc_resources,
+ .num_resources = ARRAY_SIZE(dm365_psc_resources),
+};
+
+void __init dm365_register_clocks(void)
+{
+ platform_device_register(&dm365_pll1_device);
+ platform_device_register(&dm365_pll2_device);
+ platform_device_register(&dm365_psc_device);
}
static struct resource dm365_vpss_resources[] = {
--
2.7.4
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