[PATCH v9 08/27] ARM: davinci: dm365: add new clock init using common clock framework

David Lechner
2018-04-27T00:17:26Z

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@lechnology.com>
---

v9 changes:
- register PLL1 and PSC in dm365_init_time() instead of as platform device so
that we get the correct timer0 clock for davinci_timer_init()
- Fixed size of PLL memory block

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 | 56 +++++++++++++++++++------
3 files changed, 47 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 0ac085b58a2b..36b69a131cfa 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 c2c634b6578e..a799b5266d4b 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 871372a59da8..76de426a0e41 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -12,32 +12,38 @@
* 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/clk/davinci.h>
+#include <linux/clkdev.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 +60,7 @@
#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 +492,7 @@ static struct clk_lookup dm365_clks[] = {
CLK(NULL, "mjcp", &mjcp_clk),
CLK(NULL, NULL, NULL),
};
-
+#endif
/*----------------------------------------------------------------------*/

#define INTMUX 0x18
@@ -1171,8 +1178,33 @@ void __init dm365_init(void)

void __init dm365_init_time(void)
{
+#ifdef CONFIG_COMMON_CLK
+ void __iomem *pll1, *pll2, *psc;
+ struct clk *clk;
+
+ clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DM365_REF_FREQ);
+
+ pll1 = ioremap(DAVINCI_PLL1_BASE, SZ_1K);
+ dm365_pll1_init(NULL, pll1, NULL);
+
+ pll2 = ioremap(DAVINCI_PLL2_BASE, SZ_1K);
+ dm365_pll2_init(NULL, pll2, NULL);
+
+ psc = ioremap(DAVINCI_PWR_SLEEP_CNTRL_BASE, SZ_4K);
+ dm365_psc_init(NULL, psc);
+
+ clk = clk_get(NULL, "timer0");
+
+ davinci_timer_init(clk);
+#else
davinci_clk_init(dm365_clks);
davinci_timer_init(&timer0_clk);
+#endif
+}
+
+void __init dm365_register_clocks(void)
+{
+ /* all clocks are currently registered in dm365_init_time() */
}

static struct resource dm365_vpss_resources[] = {
--
2.17.0