lkml.org 
[lkml]   [2018]   [Feb]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 11/42] clk: davinci: Add platform information for TI DA830 PSC
Date
This adds platform-specific declarations for the PSC clocks on TI DA830/
OMAP-L137/AM17XX SoCs.

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

v7 changes:
- split registration function into two, one for each PSC
- add platform_device_id table

v6 changes:
- change how clkdev lookups are declared


drivers/clk/davinci/Makefile | 1 +
drivers/clk/davinci/psc-da830.c | 89 +++++++++++++++++++++++++++++++++++++++++
drivers/clk/davinci/psc.c | 2 +
drivers/clk/davinci/psc.h | 4 ++
4 files changed, 96 insertions(+)
create mode 100644 drivers/clk/davinci/psc-da830.c

diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index cd1bf2c..fb14c8c 100644
--- a/drivers/clk/davinci/Makefile
+++ b/drivers/clk/davinci/Makefile
@@ -10,4 +10,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DM644x) += pll-dm644x.o
obj-$(CONFIG_ARCH_DAVINCI_DM646x) += pll-dm646x.o

obj-y += psc.o
+obj-$(CONFIG_ARCH_DAVINCI_DA830) += psc-da830.o
endif
diff --git a/drivers/clk/davinci/psc-da830.c b/drivers/clk/davinci/psc-da830.c
new file mode 100644
index 0000000..89e6e10
--- /dev/null
+++ b/drivers/clk/davinci/psc-da830.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PSC clock descriptions for TI DA830/OMAP-L137/AM17XX
+ *
+ * Copyright (C) 2018 David Lechner <david@lechnology.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/init.h>
+#include <linux/types.h>
+
+#include "psc.h"
+
+LPSC_CLKDEV1(spi0_clkdev, NULL, "spi_davinci.0");
+LPSC_CLKDEV1(mmcsd_clkdev, NULL, "da830-mmc.0");
+LPSC_CLKDEV1(uart0_clkdev, NULL, "serial8250.0");
+
+static const struct davinci_lpsc_clk_info da830_psc0_info[] __initconst = {
+ LPSC(0, 0, tpcc, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(1, 0, tptc0, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(2, 0, tptc1, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(3, 0, aemif, pll0_sysclk3, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(4, 0, spi0, pll0_sysclk2, spi0_clkdev, 0),
+ LPSC(5, 0, mmcsd, pll0_sysclk2, mmcsd_clkdev, 0),
+ LPSC(6, 0, aintc, pll0_sysclk4, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(7, 0, arm_rom, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(8, 0, secu_mgr, pll0_sysclk4, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(9, 0, uart0, pll0_sysclk2, uart0_clkdev, 0),
+ LPSC(10, 0, scr0_ss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(11, 0, scr1_ss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(12, 0, scr2_ss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(13, 0, pruss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(14, 0, arm, pll0_sysclk6, NULL, LPSC_ALWAYS_ENABLED),
+ { }
+};
+
+LPSC_CLKDEV2(usb0_clkdev, NULL, "musb-da8xx",
+ NULL, "cppi41-dmaengine");
+LPSC_CLKDEV1(usb1_clkdev, NULL, "ohci-da8xx");
+/* REVISIT: gpio-davinci.c should be modified to drop con_id */
+LPSC_CLKDEV1(gpio_clkdev, "gpio", NULL);
+LPSC_CLKDEV2(emac_clkdev, NULL, "davinci_emac.1",
+ "fck", "davinci_mdio.0");
+LPSC_CLKDEV1(mcasp0_clkdev, NULL, "davinci-mcasp.0");
+LPSC_CLKDEV1(mcasp1_clkdev, NULL, "davinci-mcasp.1");
+LPSC_CLKDEV1(mcasp2_clkdev, NULL, "davinci-mcasp.2");
+LPSC_CLKDEV1(spi1_clkdev, NULL, "spi_davinci.1");
+LPSC_CLKDEV1(i2c1_clkdev, NULL, "i2c_davinci.2");
+LPSC_CLKDEV1(uart1_clkdev, NULL, "serial8250.1");
+LPSC_CLKDEV1(uart2_clkdev, NULL, "serial8250.2");
+LPSC_CLKDEV1(lcdc_clkdev, "fck", "da8xx_lcdc.0");
+LPSC_CLKDEV2(pwm_clkdev, "fck", "ehrpwm.0",
+ "fck", "ehrpwm.1");
+LPSC_CLKDEV3(ecap_clkdev, "fck", "ecap.0",
+ "fck", "ecap.1",
+ "fck", "ecap.2");
+LPSC_CLKDEV2(eqep_clkdev, NULL, "eqep.0",
+ NULL, "eqep.1");
+
+static const struct davinci_lpsc_clk_info da830_psc1_info[] __initconst = {
+ LPSC(1, 0, usb0, pll0_sysclk2, usb0_clkdev, 0),
+ LPSC(2, 0, usb1, pll0_sysclk4, usb1_clkdev, 0),
+ LPSC(3, 0, gpio, pll0_sysclk4, gpio_clkdev, 0),
+ LPSC(5, 0, emac, pll0_sysclk4, emac_clkdev, 0),
+ LPSC(6, 0, emif3, pll0_sysclk5, NULL, LPSC_ALWAYS_ENABLED),
+ LPSC(7, 0, mcasp0, pll0_sysclk2, mcasp0_clkdev, 0),
+ LPSC(8, 0, mcasp1, pll0_sysclk2, mcasp1_clkdev, 0),
+ LPSC(9, 0, mcasp2, pll0_sysclk2, mcasp2_clkdev, 0),
+ LPSC(10, 0, spi1, pll0_sysclk2, spi1_clkdev, 0),
+ LPSC(11, 0, i2c1, pll0_sysclk4, i2c1_clkdev, 0),
+ LPSC(12, 0, uart1, pll0_sysclk2, uart1_clkdev, 0),
+ LPSC(13, 0, uart2, pll0_sysclk2, uart2_clkdev, 0),
+ LPSC(16, 0, lcdc, pll0_sysclk2, lcdc_clkdev, 0),
+ LPSC(17, 0, pwm, pll0_sysclk2, pwm_clkdev, 0),
+ LPSC(20, 0, ecap, pll0_sysclk2, ecap_clkdev, 0),
+ LPSC(21, 0, eqep, pll0_sysclk2, eqep_clkdev, 0),
+ { }
+};
+
+int __init da830_psc0_init(struct device *dev, void __iomem *base)
+{
+ return davinci_psc_register_clocks(dev, da830_psc0_info, 16, base);
+}
+
+int __init da830_psc1_init(struct device *dev, void __iomem *base)
+{
+ return davinci_psc_register_clocks(dev, da830_psc1_info, 32, base);
+}
diff --git a/drivers/clk/davinci/psc.c b/drivers/clk/davinci/psc.c
index 8e08ac8..c4310af 100644
--- a/drivers/clk/davinci/psc.c
+++ b/drivers/clk/davinci/psc.c
@@ -443,6 +443,8 @@ static const struct of_device_id davinci_psc_of_match[] = {
};

static const struct platform_device_id davinci_psc_id_table[] = {
+ { .name = "da830-psc0", .driver_data = (kernel_ulong_t)da830_psc0_init },
+ { .name = "da830-psc1", .driver_data = (kernel_ulong_t)da830_psc1_init },
{ }
};

diff --git a/drivers/clk/davinci/psc.h b/drivers/clk/davinci/psc.h
index c342d54..c165cee 100644
--- a/drivers/clk/davinci/psc.h
+++ b/drivers/clk/davinci/psc.h
@@ -86,4 +86,8 @@ int of_davinci_psc_clk_init(struct device *dev,
u8 num_clks,
void __iomem *base);

+/* Device-specific callbacks */
+int da830_psc0_init(struct device *dev, void __iomem *base);
+int da830_psc1_init(struct device *dev, void __iomem *base);
+
#endif /* __CLK_DAVINCI_PSC_H__ */
--
2.7.4
\
 
 \ /
  Last update: 2018-02-19 21:28    [W:0.276 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site