clk: davinci: Add platform information for TI DM644x PSC

This adds platform-specific declarations for the PSC clocks on TI
DM644x based systems.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index 78dc1eb..a20e379 100644 (file)
--- a/drivers/clk/davinci/Makefile
+++ b/drivers/clk/davinci/Makefile
@@ -14,4 +14,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DA830)      += psc-da830.o
 obj-$(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
 endif

diff --git a/drivers/clk/davinci/psc-dm644x.c b/drivers/clk/davinci/psc-dm644x.c
new file mode 100644 (file)
index 0000000..c22367b
--- /dev/null
+++ b/drivers/clk/davinci/psc-dm644x.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PSC clock descriptions for TI DaVinci DM644x
+ *
+ * Copyright (C) 2018 David Lechner <david@lechnology.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+#include "psc.h"
+
+LPSC_CLKDEV1(vpss_master_clkdev,       "master",       "vpss");
+LPSC_CLKDEV1(vpss_slave_clkdev,                "slave",        "vpss");
+LPSC_CLKDEV2(emac_clkdev,              NULL,           "davinci_emac.1",
+                                       "fck",          "davinci_mdio.0");
+LPSC_CLKDEV1(usb_clkdev,               "usb",          NULL);
+LPSC_CLKDEV1(ide_clkdev,               NULL,           "palm_bk3710");
+LPSC_CLKDEV1(aemif_clkdev,             "aemif",        NULL);
+LPSC_CLKDEV1(mmcsd_clkdev,             NULL,           "dm6441-mmc.0");
+LPSC_CLKDEV1(asp0_clkdev,              NULL,           "davinci-mcbsp");
+LPSC_CLKDEV1(i2c_clkdev,               NULL,           "i2c_davinci.1");
+LPSC_CLKDEV1(uart0_clkdev,             NULL,           "serial8250.0");
+LPSC_CLKDEV1(uart1_clkdev,             NULL,           "serial8250.1");
+LPSC_CLKDEV1(uart2_clkdev,             NULL,           "serial8250.2");
+/* REVISIT: gpio-davinci.c should be modified to drop con_id */
+LPSC_CLKDEV1(gpio_clkdev,              "gpio",         NULL);
+LPSC_CLKDEV1(timer0_clkdev,            "timer0",       NULL);
+LPSC_CLKDEV1(timer2_clkdev,            NULL,           "davinci-wdt");
+
+static const struct davinci_lpsc_clk_info dm644x_psc_info[] = {
+       LPSC(0,  0, vpss_master, pll1_sysclk3, vpss_master_clkdev, 0),
+       LPSC(1,  0, vpss_slave,  pll1_sysclk3, vpss_slave_clkdev,  0),
+       LPSC(6,  0, emac,        pll1_sysclk5, emac_clkdev,        0),
+       LPSC(9,  0, usb,         pll1_sysclk5, usb_clkdev,         0),
+       LPSC(10, 0, ide,         pll1_sysclk5, ide_clkdev,         0),
+       LPSC(11, 0, vlynq,       pll1_sysclk5, NULL,               0),
+       LPSC(14, 0, aemif,       pll1_sysclk5, aemif_clkdev,       0),
+       LPSC(15, 0, mmcsd,       pll1_sysclk5, mmcsd_clkdev,       0),
+       LPSC(17, 0, asp0,        pll1_sysclk5, asp0_clkdev,        0),
+       LPSC(18, 0, i2c,         pll1_auxclk,  i2c_clkdev,         0),
+       LPSC(19, 0, uart0,       pll1_auxclk,  uart0_clkdev,       0),
+       LPSC(20, 0, uart1,       pll1_auxclk,  uart1_clkdev,       0),
+       LPSC(21, 0, uart2,       pll1_auxclk,  uart2_clkdev,       0),
+       LPSC(22, 0, spi,         pll1_sysclk5, NULL,               0),
+       LPSC(23, 0, pwm0,        pll1_auxclk,  NULL,               0),
+       LPSC(24, 0, pwm1,        pll1_auxclk,  NULL,               0),
+       LPSC(25, 0, pwm2,        pll1_auxclk,  NULL,               0),
+       LPSC(26, 0, gpio,        pll1_sysclk5, gpio_clkdev,        0),
+       LPSC(27, 0, timer0,      pll1_auxclk,  timer0_clkdev,      LPSC_ALWAYS_ENABLED),
+       LPSC(28, 0, timer1,      pll1_auxclk,  NULL,               0),
+       /* REVISIT: why can't this be disabled? */
+       LPSC(29, 0, timer2,      pll1_auxclk,  timer2_clkdev,      LPSC_ALWAYS_ENABLED),
+       LPSC(31, 0, arm,         pll1_sysclk2, NULL,               LPSC_ALWAYS_ENABLED),
+       /* REVISIT how to disable? */
+       LPSC(39, 1, dsp,         pll1_sysclk1, NULL,               LPSC_ALWAYS_ENABLED),
+       /* REVISIT how to disable? */
+       LPSC(40, 1, vicp,        pll1_sysclk2, NULL,               LPSC_ALWAYS_ENABLED),
+       { }
+};
+
+static int dm644x_psc_init(struct device *dev, void __iomem *base)
+{
+       return davinci_psc_register_clocks(dev, dm644x_psc_info, 41, base);
+}
+
+static struct clk_bulk_data dm644x_psc_parent_clks[] = {
+       { .id = "pll1_sysclk1" },
+       { .id = "pll1_sysclk2" },
+       { .id = "pll1_sysclk3" },
+       { .id = "pll1_sysclk5" },
+       { .id = "pll1_auxclk"  },
+};
+
+const struct davinci_psc_init_data dm644x_psc_init_data = {
+       .parent_clks            = dm644x_psc_parent_clks,
+       .num_parent_clks        = ARRAY_SIZE(dm644x_psc_parent_clks),
+       .psc_init               = &dm644x_psc_init,
+};

diff --git a/drivers/clk/davinci/psc.c b/drivers/clk/davinci/psc.c
index 7bcf316..6520938 100644 (file)
--- a/drivers/clk/davinci/psc.c
+++ b/drivers/clk/davinci/psc.c
@@ -494,6 +494,7 @@ static const struct platform_device_id davinci_psc_id_table[] = {
        { .name = "da850-psc1", .driver_data = (kernel_ulong_t)&da850_psc1_init_data },
        { .name = "dm355-psc",  .driver_data = (kernel_ulong_t)&dm355_psc_init_data  },
        { .name = "dm365-psc",  .driver_data = (kernel_ulong_t)&dm365_psc_init_data  },
+       { .name = "dm644x-psc", .driver_data = (kernel_ulong_t)&dm644x_psc_init_data },
        { }
 };
 

diff --git a/drivers/clk/davinci/psc.h b/drivers/clk/davinci/psc.h
index 4f6210e..d665cb0 100644 (file)
--- a/drivers/clk/davinci/psc.h
+++ b/drivers/clk/davinci/psc.h
@@ -102,5 +102,6 @@ extern const struct davinci_psc_init_data of_da850_psc0_init_data;
 extern const struct davinci_psc_init_data of_da850_psc1_init_data;
 extern const struct davinci_psc_init_data dm355_psc_init_data;
 extern const struct davinci_psc_init_data dm365_psc_init_data;
+extern const struct davinci_psc_init_data dm644x_psc_init_data;
 
 #endif /* __CLK_DAVINCI_PSC_H__ */