linux-kernel - [PATCH v6 16/41] clk: davinci: Add platform information for TI DM646x PSC

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Message-Id: <1516468460-4908-17-git-send-email-david@lechnology.com>
Date:   Sat, 20 Jan 2018 11:13:55 -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 v6 16/41] clk: davinci: Add platform information for TI DM646x PSC

This adds platform-specific declarations for the PSC clocks on TI
DM646x based systems.

Signed-off-by: David Lechner <david@...hnology.com>
---

v6 changes:
- change how clkdev lookups are declared

 drivers/clk/davinci/Makefile     |  1 +
 drivers/clk/davinci/psc-dm646x.c | 62 ++++++++++++++++++++++++++++++++++++++++
 include/linux/clk/davinci.h      |  1 +
 3 files changed, 64 insertions(+)
 create mode 100644 drivers/clk/davinci/psc-dm646x.c

diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index a20e379..6c388d4 100644
--- a/drivers/clk/davinci/Makefile
+++ b/drivers/clk/davinci/Makefile
@@ -15,4 +15,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DA850)	+= psc-da850.o
 obj-$(CONFIG_ARCH_DAVINCI_DM355)	+= psc-dm355.o
 obj-$(CONFIG_ARCH_DAVINCI_DM365)	+= psc-dm365.o
 obj-$(CONFIG_ARCH_DAVINCI_DM644x)	+= psc-dm644x.o
+obj-$(CONFIG_ARCH_DAVINCI_DM646x)	+= psc-dm646x.o
 endif
diff --git a/drivers/clk/davinci/psc-dm646x.c b/drivers/clk/davinci/psc-dm646x.c
new file mode 100644
index 0000000..bdb9db7
--- /dev/null
+++ b/drivers/clk/davinci/psc-dm646x.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PSC clock descriptions for TI DaVinci DM646x
+ *
+ * Copyright (C) 2018 David Lechner <david@...hnology.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/init.h>
+#include <linux/types.h>
+
+#include "psc.h"
+
+LPSC_CLKDEV1(ide_clkdev,	NULL,		"palm_bk3710");
+LPSC_CLKDEV2(emac_clkdev,	NULL,		"davinci_emac.1",
+				"fck",		"davinci_mdio.0");
+LPSC_CLKDEV1(aemif_clkdev,	"aemif",	NULL);
+LPSC_CLKDEV1(mcasp0_clkdev,	NULL,		"davinci-mcasp.0");
+LPSC_CLKDEV1(mcasp1_clkdev,	NULL,		"davinci-mcasp.1");
+LPSC_CLKDEV1(uart0_clkdev,	NULL,		"serial8250.0");
+LPSC_CLKDEV1(uart1_clkdev,	NULL,		"serial8250.1");
+LPSC_CLKDEV1(uart2_clkdev,	NULL,		"serial8250.2");
+LPSC_CLKDEV1(i2c_clkdev,	NULL,		"i2c_davinci.1");
+/* REVISIT: gpio-davinci.c should be modified to drop con_id */
+LPSC_CLKDEV1(gpio_clkdev,	"gpio",		NULL);
+LPSC_CLKDEV1(timer0_clkdev,	"timer0",	 NULL);
+
+static const struct davinci_psc_clk_info dm646x_psc_info[] __initconst = {
+	LPSC(0,  0, arm,      pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
+	/* REVISIT how to disable? */
+	LPSC(1,  0, dsp,      pll1_sysclk1, NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(4,  0, edma_cc,  pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(5,  0, edma_tc0, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(6,  0, edma_tc1, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(7,  0, edma_tc2, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(8,  0, edma_tc3, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(10, 0, ide,      pll1_sysclk4, ide_clkdev,    0),
+	LPSC(14, 0, emac,     pll1_sysclk3, emac_clkdev,   0),
+	LPSC(16, 0, vpif0,    ref_clk,      NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(17, 0, vpif1,    ref_clk,      NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(21, 0, aemif,    pll1_sysclk3, aemif_clkdev,  LPSC_ALWAYS_ENABLED),
+	LPSC(22, 0, mcasp0,   pll1_sysclk3, mcasp0_clkdev, 0),
+	LPSC(23, 0, mcasp1,   pll1_sysclk3, mcasp1_clkdev, 0),
+	LPSC(26, 0, uart0,    aux_clkin,    uart0_clkdev,  0),
+	LPSC(27, 0, uart1,    aux_clkin,    uart1_clkdev,  0),
+	LPSC(28, 0, uart2,    aux_clkin,    uart2_clkdev,  0),
+	/* REVIST: disabling hangs system */
+	LPSC(29, 0, pwm0,     pll1_sysclk3, NULL,          LPSC_ALWAYS_ENABLED),
+	/* REVIST: disabling hangs system */
+	LPSC(30, 0, pwm1,     pll1_sysclk3, NULL,          LPSC_ALWAYS_ENABLED),
+	LPSC(31, 0, i2c,      pll1_sysclk3, i2c_clkdev,    0),
+	LPSC(33, 0, gpio,     pll1_sysclk3, gpio_clkdev,   0),
+	LPSC(34, 0, timer0,   pll1_sysclk3, timer0_clkdev, 0),
+	LPSC(35, 0, timer1,   pll1_sysclk3, NULL,          0),
+	{ }
+};
+
+void __init dm646x_psc_clk_init(void __iomem *psc)
+{
+	davinci_psc_register_clocks(dm646x_psc_info, psc);
+}
diff --git a/include/linux/clk/davinci.h b/include/linux/clk/davinci.h
index 6d2896d..3810ea3 100644
--- a/include/linux/clk/davinci.h
+++ b/include/linux/clk/davinci.h
@@ -21,5 +21,6 @@ void da850_psc_clk_init(void __iomem *psc0, void __iomem *psc1);
 void dm355_psc_clk_init(void __iomem *psc);
 void dm365_psc_clk_init(void __iomem *psc);
 void dm644x_psc_clk_init(void __iomem *psc);
+void dm646x_psc_clk_init(void __iomem *psc);
 
 #endif /* __LINUX_CLK_DAVINCI_H__ */
-- 
2.7.4