* [PATCH v4 4/7] clk: samsung: add clock-driver for s3c2416, s3c2443 and s3c2450
2013-12-10 15:14 [PATCH v4 0/7] ARM: S3C24XX: Convert s3c2416 and s3c2443 to common clock framework Heiko Stübner
` (2 preceding siblings ...)
2013-12-10 15:17 ` [PATCH v4 3/7] dt-bindings: add binding for clock-controller of s3c2443 and following Heiko Stübner
@ 2013-12-10 15:17 ` Heiko Stübner
2013-12-10 15:18 ` [PATCH v4 5/7] ARM: S3C24XX: prevent conflicts between ccf and non-ccf s3c24xx-socs Heiko Stübner
` (5 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Heiko Stübner @ 2013-12-10 15:17 UTC (permalink / raw)
To: linux-arm-kernel
The three SoCs share a common clock tree which only differs in the
existence of some special clocks.
As with all parts common to these three SoCs the driver is named
after the s3c2443, as it was the first SoC introducing this structure
and there exists no other label to describe this s3c24xx epoch.
The clock structure is built according to the manuals of the included
SoCs and might include changes in comparison to the previous clock
structure. As an example the sclk_uart gate was never handled previously
and the div_uart was made to be the clock used by the serial driver.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Tomasz Figa <t.figa@samsung.com>
---
arch/arm/mach-s3c24xx/Kconfig | 6 +
drivers/clk/samsung/Makefile | 1 +
drivers/clk/samsung/clk-s3c2443.c | 417 +++++++++++++++++++++
include/dt-bindings/clock/samsung,s3c2443-clock.h | 92 +++++
4 files changed, 516 insertions(+)
create mode 100644 drivers/clk/samsung/clk-s3c2443.c
create mode 100644 include/dt-bindings/clock/samsung,s3c2443-clock.h
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 8f1d327..2eeeb55 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -670,6 +670,12 @@ config S3C2443_COMMON
Common code for the S3C2443 and similar processors, which includes
the S3C2416 and S3C2450.
+config S3C2443_COMMON_CLK
+ bool
+ help
+ Temporary symbol to build the clock driver based on the common clock
+ framework.
+
config S3C2443_DMA
bool
help
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 8eb4799..4c892c6 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -8,4 +8,5 @@ obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o
obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o
obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-audss.o
+obj-$(CONFIG_S3C2443_COMMON_CLK)+= clk-s3c2443.o
obj-$(CONFIG_ARCH_S3C64XX) += clk-s3c64xx.o
diff --git a/drivers/clk/samsung/clk-s3c2443.c b/drivers/clk/samsung/clk-s3c2443.c
new file mode 100644
index 0000000..d325f38
--- /dev/null
+++ b/drivers/clk/samsung/clk-s3c2443.c
@@ -0,0 +1,417 @@
+/*
+ * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Common Clock Framework support for S3C2443 and following SoCs.
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <dt-bindings/clock/samsung,s3c2443-clock.h>
+
+#include "clk.h"
+#include "clk-pll.h"
+
+/* S3C2416 clock controller register offsets */
+#define LOCKCON0 0x00
+#define LOCKCON1 0x04
+#define MPLLCON 0x10
+#define EPLLCON 0x18
+#define EPLLCON_K 0x1C
+#define CLKSRC 0x20
+#define CLKDIV0 0x24
+#define CLKDIV1 0x28
+#define CLKDIV2 0x2C
+#define HCLKCON 0x30
+#define PCLKCON 0x34
+#define SCLKCON 0x38
+
+/* the soc types */
+enum supported_socs {
+ S3C2416,
+ S3C2443,
+ S3C2450,
+};
+
+/* list of PLLs to be registered */
+enum s3c2443_plls {
+ mpll, epll,
+};
+
+/*
+ * list of controller registers to be saved and restored during a
+ * suspend/resume cycle.
+ */
+static unsigned long s3c2443_clk_regs[] __initdata = {
+ LOCKCON0,
+ LOCKCON1,
+ MPLLCON,
+ EPLLCON,
+ EPLLCON_K,
+ CLKSRC,
+ CLKDIV0,
+ CLKDIV1,
+ CLKDIV2,
+ PCLKCON,
+ HCLKCON,
+ SCLKCON,
+};
+
+PNAME(epllref_p) = { "mpllref", "mpllref", "xti", "ext" };
+PNAME(esysclk_p) = { "epllref", "epll" };
+PNAME(mpllref_p) = { "xti", "mdivclk" };
+PNAME(msysclk_p) = { "mpllref", "mpll" };
+PNAME(armclk_p) = { "armdiv" , "hclk" };
+PNAME(i2s0_p) = { "div_i2s0", "ext_i2s", "epllref", "epllref" };
+
+struct samsung_mux_clock s3c2443_common_muxes[] __initdata = {
+ MUX(0, "epllref", epllref_p, CLKSRC, 7, 2),
+ MUX(ESYSCLK, "esysclk", esysclk_p, CLKSRC, 6, 1),
+ MUX(0, "mpllref", mpllref_p, CLKSRC, 3, 1),
+ MUX_A(MSYSCLK, "msysclk", msysclk_p, CLKSRC, 4, 1, "msysclk"),
+ MUX_A(ARMCLK, "armclk", armclk_p, CLKDIV0, 13, 1, "armclk"),
+ MUX(0, "mux_i2s0", i2s0_p, CLKSRC, 14, 2),
+};
+
+static struct clk_div_table hclk_d[] = {
+ { .val = 0, .div = 1 },
+ { .val = 1, .div = 2 },
+ { .val = 3, .div = 4 },
+ { .div = 0 },
+};
+
+static struct clk_div_table mdivclk_d[] = {
+ { .val = 0, .div = 1 },
+ { .val = 1, .div = 3 },
+ { .val = 2, .div = 5 },
+ { .val = 3, .div = 7 },
+ { .val = 4, .div = 9 },
+ { .val = 5, .div = 11 },
+ { .val = 6, .div = 13 },
+ { .val = 7, .div = 15 },
+ { .div = 0 },
+};
+
+struct samsung_div_clock s3c2443_common_dividers[] __initdata = {
+ DIV_T(0, "mdivclk", "xti", CLKDIV0, 6, 3, mdivclk_d),
+ DIV(0, "prediv", "msysclk", CLKDIV0, 4, 2),
+ DIV_T(HCLK, "hclk", "prediv", CLKDIV0, 0, 2, hclk_d),
+ DIV(PCLK, "pclk", "hclk", CLKDIV0, 2, 1),
+ DIV(0, "div_hsspi0_epll", "esysclk", CLKDIV1, 24, 2),
+ DIV(0, "div_fimd", "esysclk", CLKDIV1, 16, 8),
+ DIV(0, "div_i2s0", "esysclk", CLKDIV1, 12, 4),
+ DIV(0, "div_uart", "esysclk", CLKDIV1, 8, 4),
+ DIV(0, "div_hsmmc1", "esysclk", CLKDIV1, 6, 2),
+ DIV(0, "div_usbhost", "esysclk", CLKDIV1, 4, 2),
+};
+
+struct samsung_gate_clock s3c2443_common_gates[] __initdata = {
+ GATE(SCLK_HSMMC_EXT, "sclk_hsmmcext", "ext", SCLKCON, 13, 0, 0),
+ GATE(SCLK_HSMMC1, "sclk_hsmmc1", "div_hsmmc1", SCLKCON, 12, 0, 0),
+ GATE(SCLK_FIMD, "sclk_fimd", "div_fimd", SCLKCON, 10, 0, 0),
+ GATE(SCLK_I2S0, "sclk_i2s0", "mux_i2s0", SCLKCON, 9, 0, 0),
+ GATE(SCLK_UART, "sclk_uart", "div_uart", SCLKCON, 8, 0, 0),
+ GATE(SCLK_USBH, "sclk_usbhost", "div_usbhost", SCLKCON, 1, 0, 0),
+ GATE(HCLK_DRAM, "dram", "hclk", HCLKCON, 19, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_SSMC, "ssmc", "hclk", HCLKCON, 18, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_HSMMC1, "hsmmc1", "hclk", HCLKCON, 16, 0, 0),
+ GATE(HCLK_USBD, "usb-device", "hclk", HCLKCON, 12, 0, 0),
+ GATE(HCLK_USBH, "usb-host", "hclk", HCLKCON, 11, 0, 0),
+ GATE(HCLK_LCD, "lcd", "hclk", HCLKCON, 9, 0, 0),
+ GATE(HCLK_DMA5, "dma5", "hclk", HCLKCON, 5, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_DMA4, "dma4", "hclk", HCLKCON, 4, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_DMA3, "dma3", "hclk", HCLKCON, 3, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_DMA2, "dma2", "hclk", HCLKCON, 2, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_DMA1, "dma1", "hclk", HCLKCON, 1, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_DMA0, "dma0", "hclk", HCLKCON, 0, CLK_IGNORE_UNUSED, 0),
+ GATE(PCLK_GPIO, "gpio", "pclk", PCLKCON, 13, CLK_IGNORE_UNUSED, 0),
+ GATE(PCLK_RTC, "rtc", "pclk", PCLKCON, 12, 0, 0),
+ GATE(PCLK_WDT, "wdt", "pclk", PCLKCON, 11, 0, 0),
+ GATE(PCLK_PWM, "pwm", "pclk", PCLKCON, 10, 0, 0),
+ GATE(PCLK_I2S0, "i2s0", "pclk", PCLKCON, 9, 0, 0),
+ GATE(PCLK_AC97, "ac97", "pclk", PCLKCON, 8, 0, 0),
+ GATE(PCLK_ADC, "adc", "pclk", PCLKCON, 7, 0, 0),
+ GATE(PCLK_SPI0, "spi0", "pclk", PCLKCON, 6, 0, 0),
+ GATE(PCLK_I2C0, "i2c0", "pclk", PCLKCON, 4, 0, 0),
+ GATE(PCLK_UART3, "uart3", "pclk", PCLKCON, 3, 0, 0),
+ GATE(PCLK_UART2, "uart2", "pclk", PCLKCON, 2, 0, 0),
+ GATE(PCLK_UART1, "uart1", "pclk", PCLKCON, 1, 0, 0),
+ GATE(PCLK_UART0, "uart0", "pclk", PCLKCON, 0, 0, 0),
+};
+
+struct samsung_clock_alias s3c2443_common_aliases[] __initdata = {
+ ALIAS(HCLK, NULL, "hclk"),
+ ALIAS(HCLK_SSMC, NULL, "nand"),
+ ALIAS(PCLK_UART0, "s3c2440-uart.0", "uart"),
+ ALIAS(PCLK_UART1, "s3c2440-uart.1", "uart"),
+ ALIAS(PCLK_UART2, "s3c2440-uart.2", "uart"),
+ ALIAS(PCLK_UART3, "s3c2440-uart.3", "uart"),
+ ALIAS(PCLK_UART0, "s3c2440-uart.0", "clk_uart_baud2"),
+ ALIAS(PCLK_UART1, "s3c2440-uart.1", "clk_uart_baud2"),
+ ALIAS(PCLK_UART2, "s3c2440-uart.2", "clk_uart_baud2"),
+ ALIAS(PCLK_UART3, "s3c2440-uart.3", "clk_uart_baud2"),
+ ALIAS(SCLK_UART, NULL, "clk_uart_baud3"),
+ ALIAS(PCLK_PWM, NULL, "timers"),
+ ALIAS(PCLK_RTC, NULL, "rtc"),
+ ALIAS(PCLK_WDT, NULL, "watchdog"),
+ ALIAS(PCLK_ADC, NULL, "adc"),
+ ALIAS(PCLK_I2C0, "s3c2410-i2c.0", "i2c"),
+ ALIAS(HCLK_USBD, NULL, "usb-device"),
+ ALIAS(HCLK_USBH, NULL, "usb-host"),
+ ALIAS(SCLK_USBH, NULL, "usb-bus-host"),
+ ALIAS(PCLK_SPI0, "s3c2443-spi.0", "spi"),
+ ALIAS(PCLK_SPI0, "s3c2443-spi.0", "spi_busclk0"),
+ ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "hsmmc"),
+ ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "mmc_busclk.0"),
+ ALIAS(PCLK_I2S0, "samsung-i2s.0", "iis"),
+ ALIAS(SCLK_I2S0, NULL, "i2s-if"),
+ ALIAS(HCLK_LCD, NULL, "lcd"),
+ ALIAS(SCLK_FIMD, NULL, "sclk_fimd"),
+};
+
+/* S3C2416 specific clocks */
+
+static struct samsung_pll_clock s3c2416_pll_clks[] __initdata = {
+ [mpll] = PLL(pll_6552_s3c2416, 0, "mpll", "mpllref",
+ LOCKCON0, MPLLCON, NULL),
+ [epll] = PLL(pll_6553, 0, "epll", "epllref",
+ LOCKCON1, EPLLCON, NULL),
+};
+
+PNAME(s3c2416_hsmmc0_p) = { "sclk_hsmmc0", "sclk_hsmmcext" };
+PNAME(s3c2416_hsmmc1_p) = { "sclk_hsmmc1", "sclk_hsmmcext" };
+PNAME(s3c2416_hsspi0_p) = { "hsspi0_epll", "hsspi0_mpll" };
+
+static struct clk_div_table armdiv_s3c2416_d[] = {
+ { .val = 0, .div = 1 },
+ { .val = 1, .div = 2 },
+ { .val = 2, .div = 3 },
+ { .val = 3, .div = 4 },
+ { .val = 5, .div = 6 },
+ { .val = 7, .div = 8 },
+ { .div = 0 },
+};
+
+struct samsung_div_clock s3c2416_dividers[] __initdata = {
+ DIV_T(ARMDIV, "armdiv", "msysclk", CLKDIV0, 9, 3, armdiv_s3c2416_d),
+ DIV(0, "div_hsspi0_mpll", "msysclk", CLKDIV2, 0, 4),
+ DIV(0, "div_hsmmc0", "esysclk", CLKDIV2, 6, 2),
+};
+
+struct samsung_mux_clock s3c2416_muxes[] __initdata = {
+ MUX(MUX_HSMMC0, "mux_hsmmc0", s3c2416_hsmmc0_p, CLKSRC, 16, 1),
+ MUX(MUX_HSMMC1, "mux_hsmmc1", s3c2416_hsmmc1_p, CLKSRC, 17, 1),
+ MUX(MUX_HSSPI0, "mux_hsspi0", s3c2416_hsspi0_p, CLKSRC, 18, 1),
+};
+
+struct samsung_gate_clock s3c2416_gates[] __initdata = {
+ GATE(0, "hsspi0_mpll", "div_hsspi0_mpll", SCLKCON, 19, 0, 0),
+ GATE(0, "hsspi0_epll", "div_hsspi0_epll", SCLKCON, 14, 0, 0),
+ GATE(0, "sclk_hsmmc0", "div_hsmmc0", SCLKCON, 6, 0, 0),
+ GATE(HCLK_2D, "2d", "hclk", HCLKCON, 20, 0, 0),
+ GATE(HCLK_HSMMC0, "hsmmc0", "hclk", HCLKCON, 15, 0, 0),
+ GATE(HCLK_IROM, "irom", "hclk", HCLKCON, 13, CLK_IGNORE_UNUSED, 0),
+ GATE(PCLK_PCM, "pcm", "pclk", PCLKCON, 19, 0, 0),
+};
+
+struct samsung_clock_alias s3c2416_aliases[] __initdata = {
+ ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "hsmmc"),
+ ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "mmc_busclk.0"),
+ ALIAS(MUX_HSMMC0, "s3c-sdhci.0", "mmc_busclk.2"),
+ ALIAS(MUX_HSMMC1, "s3c-sdhci.1", "mmc_busclk.2"),
+ ALIAS(MUX_HSSPI0, "s3c2443-spi.0", "spi_busclk2"),
+ ALIAS(ARMDIV, NULL, "armdiv"),
+};
+
+/* S3C2443 specific clocks */
+
+static struct samsung_pll_clock s3c2443_pll_clks[] __initdata = {
+ [mpll] = PLL(pll_3000, 0, "mpll", "mpllref",
+ LOCKCON0, MPLLCON, NULL),
+ [epll] = PLL(pll_2126, 0, "epll", "epllref",
+ LOCKCON1, EPLLCON, NULL),
+};
+
+static struct clk_div_table armdiv_s3c2443_d[] = {
+ { .val = 0, .div = 1 },
+ { .val = 8, .div = 2 },
+ { .val = 2, .div = 3 },
+ { .val = 9, .div = 4 },
+ { .val = 10, .div = 6 },
+ { .val = 11, .div = 8 },
+ { .val = 13, .div = 12 },
+ { .val = 15, .div = 16 },
+ { .div = 0 },
+};
+
+struct samsung_div_clock s3c2443_dividers[] __initdata = {
+ DIV_T(ARMDIV, "armdiv", "msysclk", CLKDIV0, 9, 4, armdiv_s3c2443_d),
+ DIV(0, "div_cam", "esysclk", CLKDIV1, 26, 4),
+};
+
+struct samsung_gate_clock s3c2443_gates[] __initdata = {
+ GATE(SCLK_HSSPI0, "sclk_hsspi0", "div_hsspi0_epll", SCLKCON, 14, 0, 0),
+ GATE(SCLK_CAM, "sclk_cam", "div_cam", SCLKCON, 11, 0, 0),
+ GATE(HCLK_CFC, "cfc", "hclk", HCLKCON, 17, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_CAM, "cam", "hclk", HCLKCON, 8, 0, 0),
+ GATE(PCLK_SPI1, "spi1", "pclk", PCLKCON, 15, 0, 0),
+ GATE(PCLK_SDI, "sdi", "pclk", PCLKCON, 5, 0, 0),
+};
+
+struct samsung_clock_alias s3c2443_aliases[] __initdata = {
+ ALIAS(SCLK_HSSPI0, "s3c2443-spi.0", "spi_busclk2"),
+ ALIAS(SCLK_HSMMC1, "s3c-sdhci.1", "mmc_busclk.2"),
+ ALIAS(SCLK_CAM, NULL, "camif-upll"),
+ ALIAS(PCLK_SPI1, "s3c2410-spi.0", "spi"),
+ ALIAS(PCLK_SDI, NULL, "sdi"),
+ ALIAS(HCLK_CFC, NULL, "cfc"),
+ ALIAS(ARMDIV, NULL, "armdiv"),
+};
+
+/* S3C2450 specific clocks */
+
+PNAME(s3c2450_cam_p) = { "div_cam", "hclk" };
+PNAME(s3c2450_hsspi1_p) = { "hsspi1_epll", "hsspi1_mpll" };
+PNAME(i2s1_p) = { "div_i2s1", "ext_i2s", "epllref", "epllref" };
+
+struct samsung_div_clock s3c2450_dividers[] __initdata = {
+ DIV(0, "div_cam", "esysclk", CLKDIV1, 26, 4),
+ DIV(0, "div_hsspi1_epll", "esysclk", CLKDIV2, 24, 2),
+ DIV(0, "div_hsspi1_mpll", "msysclk", CLKDIV2, 16, 4),
+ DIV(0, "div_i2s1", "esysclk", CLKDIV2, 12, 4),
+};
+
+struct samsung_mux_clock s3c2450_muxes[] __initdata = {
+ MUX(0, "mux_cam", s3c2450_cam_p, CLKSRC, 20, 1),
+ MUX(MUX_HSSPI1, "mux_hsspi1", s3c2450_hsspi1_p, CLKSRC, 19, 1),
+ MUX(0, "mux_i2s1", i2s1_p, CLKSRC, 12, 2),
+};
+
+struct samsung_gate_clock s3c2450_gates[] __initdata = {
+ GATE(SCLK_I2S1, "sclk_i2s1", "div_i2s1", SCLKCON, 5, 0, 0),
+ GATE(HCLK_CFC, "cfc", "hclk", HCLKCON, 17, 0, 0),
+ GATE(HCLK_CAM, "cam", "hclk", HCLKCON, 8, 0, 0),
+ GATE(HCLK_DMA7, "dma7", "hclk", HCLKCON, 7, CLK_IGNORE_UNUSED, 0),
+ GATE(HCLK_DMA6, "dma6", "hclk", HCLKCON, 6, CLK_IGNORE_UNUSED, 0),
+ GATE(PCLK_I2S1, "i2s1", "pclk", PCLKCON, 17, 0, 0),
+ GATE(PCLK_I2C1, "i2c1", "pclk", PCLKCON, 16, 0, 0),
+ GATE(PCLK_SPI1, "spi1", "pclk", PCLKCON, 14, 0, 0),
+};
+
+struct samsung_clock_alias s3c2450_aliases[] __initdata = {
+ ALIAS(PCLK_SPI1, "s3c2443-spi.1", "spi"),
+ ALIAS(PCLK_SPI1, "s3c2443-spi.1", "spi_busclk0"),
+ ALIAS(MUX_HSSPI1, "s3c2443-spi.1", "spi_busclk2"),
+ ALIAS(PCLK_I2C1, "s3c2410-i2c.1", "i2c"),
+};
+
+/*
+ * fixed rate clocks generated outside the soc
+ * Only necessary until the devicetree-move is complete
+ */
+struct samsung_fixed_rate_clock s3c2443_common_frate_clks[] __initdata = {
+ FRATE(0, "xti", NULL, CLK_IS_ROOT, 0),
+ FRATE(0, "ext", NULL, CLK_IS_ROOT, 0),
+ FRATE(0, "ext_i2s", NULL, CLK_IS_ROOT, 0),
+ FRATE(0, "ext_uart", NULL, CLK_IS_ROOT, 0),
+};
+
+static void __init s3c2443_common_clk_register_fixed_ext(unsigned long xti_f)
+{
+ s3c2443_common_frate_clks[0].fixed_rate = xti_f;
+ samsung_clk_register_fixed_rate(s3c2443_common_frate_clks,
+ ARRAY_SIZE(s3c2443_common_frate_clks));
+}
+
+void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f,
+ int current_soc,
+ void __iomem *reg_base)
+{
+ if (np) {
+ reg_base = of_iomap(np, 0);
+ if (!reg_base)
+ panic("%s: failed to map registers\n", __func__);
+ }
+
+ samsung_clk_init(np, reg_base, NR_CLKS,
+ s3c2443_clk_regs, ARRAY_SIZE(s3c2443_clk_regs), NULL, 0);
+
+ /* Register external clocks only in non-dt cases */
+ if (!np)
+ s3c2443_common_clk_register_fixed_ext(xti_f);
+
+ /* Register PLLs. */
+ if (current_soc == S3C2416 || current_soc == S3C2450)
+ samsung_clk_register_pll(s3c2416_pll_clks,
+ ARRAY_SIZE(s3c2416_pll_clks), reg_base);
+ else
+ samsung_clk_register_pll(s3c2443_pll_clks,
+ ARRAY_SIZE(s3c2443_pll_clks), reg_base);
+
+ /* Register common internal clocks. */
+ samsung_clk_register_mux(s3c2443_common_muxes,
+ ARRAY_SIZE(s3c2443_common_muxes));
+ samsung_clk_register_div(s3c2443_common_dividers,
+ ARRAY_SIZE(s3c2443_common_dividers));
+ samsung_clk_register_gate(s3c2443_common_gates,
+ ARRAY_SIZE(s3c2443_common_gates));
+ samsung_clk_register_alias(s3c2443_common_aliases,
+ ARRAY_SIZE(s3c2443_common_aliases));
+
+ /* Register SoC-specific clocks. */
+ switch (current_soc) {
+ case S3C2450:
+ samsung_clk_register_div(s3c2450_dividers,
+ ARRAY_SIZE(s3c2450_dividers));
+ samsung_clk_register_mux(s3c2450_muxes,
+ ARRAY_SIZE(s3c2450_muxes));
+ samsung_clk_register_gate(s3c2450_gates,
+ ARRAY_SIZE(s3c2450_gates));
+ samsung_clk_register_alias(s3c2450_aliases,
+ ARRAY_SIZE(s3c2450_aliases));
+ /* fall through, as s3c2450 extends the s3c2416 clocks */
+ case S3C2416:
+ samsung_clk_register_div(s3c2416_dividers,
+ ARRAY_SIZE(s3c2416_dividers));
+ samsung_clk_register_mux(s3c2416_muxes,
+ ARRAY_SIZE(s3c2416_muxes));
+ samsung_clk_register_gate(s3c2416_gates,
+ ARRAY_SIZE(s3c2416_gates));
+ samsung_clk_register_alias(s3c2416_aliases,
+ ARRAY_SIZE(s3c2416_aliases));
+ break;
+ case S3C2443:
+ samsung_clk_register_div(s3c2443_dividers,
+ ARRAY_SIZE(s3c2443_dividers));
+ samsung_clk_register_gate(s3c2443_gates,
+ ARRAY_SIZE(s3c2443_gates));
+ samsung_clk_register_alias(s3c2443_aliases,
+ ARRAY_SIZE(s3c2443_aliases));
+ break;
+ }
+}
+
+static void __init s3c2416_clk_init(struct device_node *np)
+{
+ s3c2443_common_clk_init(np, 0, S3C2416, 0);
+}
+CLK_OF_DECLARE(s3c2416_clk, "samsung,s3c2416-clock", s3c2416_clk_init);
+
+static void __init s3c2443_clk_init(struct device_node *np)
+{
+ s3c2443_common_clk_init(np, 0, S3C2443, 0);
+}
+CLK_OF_DECLARE(s3c2443_clk, "samsung,s3c2443-clock", s3c2443_clk_init);
+
+static void __init s3c2450_clk_init(struct device_node *np)
+{
+ s3c2443_common_clk_init(np, 0, S3C2450, 0);
+}
+CLK_OF_DECLARE(s3c2450_clk, "samsung,s3c2450-clock", s3c2450_clk_init);
diff --git a/include/dt-bindings/clock/samsung,s3c2443-clock.h b/include/dt-bindings/clock/samsung,s3c2443-clock.h
new file mode 100644
index 0000000..37e66b0
--- /dev/null
+++ b/include/dt-bindings/clock/samsung,s3c2443-clock.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Device Tree binding constants clock controllers of Samsung S3C2443 and later.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_SAMSUNG_S3C2443_CLOCK_H
+#define _DT_BINDINGS_CLOCK_SAMSUNG_S3C2443_CLOCK_H
+
+/*
+ * Let each exported clock get a unique index, which is used on DT-enabled
+ * platforms to lookup the clock from a clock specifier. These indices are
+ * therefore considered an ABI and so must not be changed. This implies
+ * that new clocks should be added either in free spaces between clock groups
+ * or at the end.
+ */
+
+/* Core clocks. */
+#define MSYSCLK 1
+#define ESYSCLK 2
+#define ARMDIV 3
+#define ARMCLK 4
+#define HCLK 5
+#define PCLK 6
+
+/* Special clocks */
+#define SCLK_HSSPI0 16
+#define SCLK_FIMD 17
+#define SCLK_I2S0 18
+#define SCLK_I2S1 19
+#define SCLK_HSMMC1 20
+#define SCLK_HSMMC_EXT 21
+#define SCLK_CAM 22
+#define SCLK_UART 23
+#define SCLK_USBH 24
+
+/* Muxes */
+#define MUX_HSSPI0 32
+#define MUX_HSSPI1 33
+#define MUX_HSMMC0 34
+#define MUX_HSMMC1 35
+
+/* hclk-gates */
+#define HCLK_DMA0 48
+#define HCLK_DMA1 49
+#define HCLK_DMA2 50
+#define HCLK_DMA3 51
+#define HCLK_DMA4 52
+#define HCLK_DMA5 53
+#define HCLK_DMA6 54
+#define HCLK_DMA7 55
+#define HCLK_CAM 56
+#define HCLK_LCD 57
+#define HCLK_USBH 58
+#define HCLK_USBD 59
+#define HCLK_IROM 60
+#define HCLK_HSMMC0 61
+#define HCLK_HSMMC1 62
+#define HCLK_CFC 63
+#define HCLK_SSMC 64
+#define HCLK_DRAM 65
+#define HCLK_2D 66
+
+/* pclk-gates */
+#define PCLK_UART0 72
+#define PCLK_UART1 73
+#define PCLK_UART2 74
+#define PCLK_UART3 75
+#define PCLK_I2C0 76
+#define PCLK_SDI 77
+#define PCLK_SPI0 78
+#define PCLK_ADC 79
+#define PCLK_AC97 80
+#define PCLK_I2S0 81
+#define PCLK_PWM 82
+#define PCLK_WDT 83
+#define PCLK_RTC 84
+#define PCLK_GPIO 85
+#define PCLK_SPI1 86
+#define PCLK_CHIPID 87
+#define PCLK_I2C1 88
+#define PCLK_I2S1 89
+#define PCLK_PCM 90
+
+/* Total number of clocks. */
+#define NR_CLKS (PCLK_PCM + 1)
+
+#endif /* _DT_BINDINGS_CLOCK_SAMSUNG_S3C2443_CLOCK_H */
--
1.7.10.4
^ permalink raw reply related [flat|nested] 16+ messages in thread* [PATCH v4 7/7] ARM: S3C24XX: Convert s3c2416 and s3c2443 to common clock framework
2013-12-10 15:14 [PATCH v4 0/7] ARM: S3C24XX: Convert s3c2416 and s3c2443 to common clock framework Heiko Stübner
` (5 preceding siblings ...)
2013-12-10 15:19 ` [PATCH v4 6/7] ARM: dt: add clock data for s3c2416 Heiko Stübner
@ 2013-12-10 15:20 ` Heiko Stübner
2013-12-10 15:27 ` [PATCH v4 0/7] " Tomasz Figa
` (2 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Heiko Stübner @ 2013-12-10 15:20 UTC (permalink / raw)
To: linux-arm-kernel
This converts the mentioned platforms to use the newly introduced driver
for the common clock framework for them.
With this the whole legacy clock structure can go away too.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm/mach-s3c24xx/Kconfig | 14 +-
arch/arm/mach-s3c24xx/Makefile | 5 +-
arch/arm/mach-s3c24xx/clock-s3c2416.c | 171 --------
arch/arm/mach-s3c24xx/clock-s3c2443.c | 212 ----------
arch/arm/mach-s3c24xx/common-s3c2443.c | 675 -------------------------------
arch/arm/mach-s3c24xx/common.c | 16 +-
arch/arm/mach-s3c24xx/common.h | 6 +
arch/arm/mach-s3c24xx/mach-s3c2416-dt.c | 39 +-
arch/arm/mach-s3c24xx/mach-smdk2416.c | 9 +-
arch/arm/mach-s3c24xx/mach-smdk2443.c | 9 +-
10 files changed, 41 insertions(+), 1115 deletions(-)
delete mode 100644 arch/arm/mach-s3c24xx/clock-s3c2416.c
delete mode 100644 arch/arm/mach-s3c24xx/clock-s3c2443.c
delete mode 100644 arch/arm/mach-s3c24xx/common-s3c2443.c
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 3f1547c..397c440 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -49,12 +49,12 @@ config CPU_S3C2412
config CPU_S3C2416
bool "SAMSUNG S3C2416/S3C2450"
+ select COMMON_CLK
select CPU_ARM926T
select CPU_LLSERIAL_S3C2440
select S3C2416_PM if PM
- select S3C2443_COMMON
+ select S3C2443_COMMON_CLK
select S3C2443_DMA if S3C24XX_DMA
- select SAMSUNG_CLKSRC
help
Support for the S3C2416 SoC from the S3C24XX line
@@ -87,11 +87,11 @@ config CPU_S3C244X
config CPU_S3C2443
bool "SAMSUNG S3C2443"
+ select COMMON_CLK
select CPU_ARM920T
select CPU_LLSERIAL_S3C2440
- select S3C2443_COMMON
+ select S3C2443_COMMON_CLK
select S3C2443_DMA if S3C24XX_DMA
- select SAMSUNG_CLKSRC
help
Support for the S3C2443 SoC from the S3C24XX line
@@ -668,12 +668,6 @@ endif # CPU_S3C2442
if CPU_S3C2443 || CPU_S3C2416
-config S3C2443_COMMON
- bool
- help
- Common code for the S3C2443 and similar processors, which includes
- the S3C2416 and S3C2450.
-
config S3C2443_COMMON_CLK
bool
help
diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile
index 7f54e5b..ba0e547 100644
--- a/arch/arm/mach-s3c24xx/Makefile
+++ b/arch/arm/mach-s3c24xx/Makefile
@@ -26,7 +26,7 @@ obj-$(CONFIG_S3C2412_DMA) += dma-s3c2412.o
obj-$(CONFIG_S3C2412_PM) += pm-s3c2412.o
obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep-s3c2412.o
-obj-$(CONFIG_CPU_S3C2416) += s3c2416.o clock-s3c2416.o
+obj-$(CONFIG_CPU_S3C2416) += s3c2416.o
obj-$(CONFIG_S3C2416_PM) += pm-s3c2416.o
obj-$(CONFIG_CPU_S3C2440) += s3c2440.o clock-s3c2440.o
@@ -36,7 +36,7 @@ obj-$(CONFIG_S3C2440_DMA) += dma-s3c2440.o
obj-$(CONFIG_S3C2440_PLL_12000000) += pll-s3c2440-12000000.o
obj-$(CONFIG_S3C2440_PLL_16934400) += pll-s3c2440-16934400.o
-obj-$(CONFIG_CPU_S3C2443) += s3c2443.o clock-s3c2443.o
+obj-$(CONFIG_CPU_S3C2443) += s3c2443.o
# PM
@@ -53,7 +53,6 @@ obj-$(CONFIG_S3C2410_CPUFREQ_UTILS) += cpufreq-utils.o
obj-$(CONFIG_S3C2410_IOTIMING) += iotiming-s3c2410.o
obj-$(CONFIG_S3C2412_IOTIMING) += iotiming-s3c2412.o
-obj-$(CONFIG_S3C2443_COMMON) += common-s3c2443.o
obj-$(CONFIG_S3C2443_DMA) += dma-s3c2443.o
#
diff --git a/arch/arm/mach-s3c24xx/clock-s3c2416.c b/arch/arm/mach-s3c24xx/clock-s3c2416.c
deleted file mode 100644
index d421a72..0000000
--- a/arch/arm/mach-s3c24xx/clock-s3c2416.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/* linux/arch/arm/mach-s3c2416/clock.c
- *
- * Copyright (c) 2010 Simtec Electronics
- * Copyright (c) 2010 Ben Dooks <ben-linux@fluff.org>
- *
- * S3C2416 Clock control support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/clk.h>
-
-#include <plat/clock.h>
-#include <plat/clock-clksrc.h>
-#include <plat/cpu.h>
-
-#include <plat/cpu-freq.h>
-#include <plat/pll.h>
-
-#include <asm/mach/map.h>
-
-#include <mach/regs-clock.h>
-#include <mach/regs-s3c2443-clock.h>
-
-/* armdiv
- *
- * this clock is sourced from msysclk and can have a number of
- * divider values applied to it to then be fed into armclk.
- * The real clock definition is done in s3c2443-clock.c,
- * only the armdiv divisor table must be defined here.
-*/
-
-static unsigned int armdiv[8] = {
- [0] = 1,
- [1] = 2,
- [2] = 3,
- [3] = 4,
- [5] = 6,
- [7] = 8,
-};
-
-static struct clksrc_clk hsspi_eplldiv = {
- .clk = {
- .name = "hsspi-eplldiv",
- .parent = &clk_esysclk.clk,
- .ctrlbit = (1 << 14),
- .enable = s3c2443_clkcon_enable_s,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 24 },
-};
-
-static struct clk *hsspi_sources[] = {
- [0] = &hsspi_eplldiv.clk,
- [1] = NULL, /* to fix */
-};
-
-static struct clksrc_clk hsspi_mux = {
- .clk = {
- .name = "hsspi-if",
- },
- .sources = &(struct clksrc_sources) {
- .sources = hsspi_sources,
- .nr_sources = ARRAY_SIZE(hsspi_sources),
- },
- .reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 18 },
-};
-
-static struct clksrc_clk hsmmc_div[] = {
- [0] = {
- .clk = {
- .name = "hsmmc-div",
- .devname = "s3c-sdhci.0",
- .parent = &clk_esysclk.clk,
- },
- .reg_div = { .reg = S3C2416_CLKDIV2, .size = 2, .shift = 6 },
- },
- [1] = {
- .clk = {
- .name = "hsmmc-div",
- .devname = "s3c-sdhci.1",
- .parent = &clk_esysclk.clk,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 6 },
- },
-};
-
-static struct clksrc_clk hsmmc_mux0 = {
- .clk = {
- .name = "hsmmc-if",
- .devname = "s3c-sdhci.0",
- .ctrlbit = (1 << 6),
- .enable = s3c2443_clkcon_enable_s,
- },
- .sources = &(struct clksrc_sources) {
- .nr_sources = 2,
- .sources = (struct clk * []) {
- [0] = &hsmmc_div[0].clk,
- [1] = NULL, /* to fix */
- },
- },
- .reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 16 },
-};
-
-static struct clksrc_clk hsmmc_mux1 = {
- .clk = {
- .name = "hsmmc-if",
- .devname = "s3c-sdhci.1",
- .ctrlbit = (1 << 12),
- .enable = s3c2443_clkcon_enable_s,
- },
- .sources = &(struct clksrc_sources) {
- .nr_sources = 2,
- .sources = (struct clk * []) {
- [0] = &hsmmc_div[1].clk,
- [1] = NULL, /* to fix */
- },
- },
- .reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 17 },
-};
-
-static struct clk hsmmc0_clk = {
- .name = "hsmmc",
- .devname = "s3c-sdhci.0",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2416_HCLKCON_HSMMC0,
-};
-
-static struct clksrc_clk *clksrcs[] __initdata = {
- &hsspi_eplldiv,
- &hsspi_mux,
- &hsmmc_div[0],
- &hsmmc_div[1],
- &hsmmc_mux0,
- &hsmmc_mux1,
-};
-
-static struct clk_lookup s3c2416_clk_lookup[] = {
- CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &hsmmc0_clk),
- CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &hsmmc_mux0.clk),
- CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &hsmmc_mux1.clk),
- /* s3c2443-spi.0 is used on s3c2416 and s3c2450 as well */
- CLKDEV_INIT("s3c2443-spi.0", "spi_busclk2", &hsspi_mux.clk),
-};
-
-void __init s3c2416_init_clocks(int xtal)
-{
- u32 epllcon = __raw_readl(S3C2443_EPLLCON);
- u32 epllcon1 = __raw_readl(S3C2443_EPLLCON+4);
- int ptr;
-
- /* s3c2416 EPLL compatible with s3c64xx */
- clk_epll.rate = s3c_get_pll6553x(xtal, epllcon, epllcon1);
-
- clk_epll.parent = &clk_epllref.clk;
-
- s3c2443_common_init_clocks(xtal, s3c2416_get_pll,
- armdiv, ARRAY_SIZE(armdiv),
- S3C2416_CLKDIV0_ARMDIV_MASK);
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
- s3c_register_clksrc(clksrcs[ptr], 1);
-
- s3c24xx_register_clock(&hsmmc0_clk);
- clkdev_add_table(s3c2416_clk_lookup, ARRAY_SIZE(s3c2416_clk_lookup));
-
-}
diff --git a/arch/arm/mach-s3c24xx/clock-s3c2443.c b/arch/arm/mach-s3c24xx/clock-s3c2443.c
deleted file mode 100644
index 76cd31f..0000000
--- a/arch/arm/mach-s3c24xx/clock-s3c2443.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/* linux/arch/arm/mach-s3c2443/clock.c
- *
- * Copyright (c) 2007, 2010 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C2443 Clock control support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#include <linux/init.h>
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/device.h>
-#include <linux/clk.h>
-#include <linux/mutex.h>
-#include <linux/serial_core.h>
-#include <linux/io.h>
-
-#include <asm/mach/map.h>
-
-#include <mach/hardware.h>
-
-#include <mach/regs-s3c2443-clock.h>
-
-#include <plat/cpu-freq.h>
-
-#include <plat/clock.h>
-#include <plat/clock-clksrc.h>
-#include <plat/cpu.h>
-
-/* We currently have to assume that the system is running
- * from the XTPll input, and that all ***REFCLKs are being
- * fed from it, as we cannot read the state of OM[4] from
- * software.
- *
- * It would be possible for each board initialisation to
- * set the correct muxing at initialisation
-*/
-
-/* clock selections */
-
-/* armdiv
- *
- * this clock is sourced from msysclk and can have a number of
- * divider values applied to it to then be fed into armclk.
- * The real clock definition is done in s3c2443-clock.c,
- * only the armdiv divisor table must be defined here.
-*/
-
-static unsigned int armdiv[16] = {
- [S3C2443_CLKDIV0_ARMDIV_1 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 1,
- [S3C2443_CLKDIV0_ARMDIV_2 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 2,
- [S3C2443_CLKDIV0_ARMDIV_3 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 3,
- [S3C2443_CLKDIV0_ARMDIV_4 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 4,
- [S3C2443_CLKDIV0_ARMDIV_6 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 6,
- [S3C2443_CLKDIV0_ARMDIV_8 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 8,
- [S3C2443_CLKDIV0_ARMDIV_12 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 12,
- [S3C2443_CLKDIV0_ARMDIV_16 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 16,
-};
-
-/* hsspi
- *
- * high-speed spi clock, sourced from esysclk
-*/
-
-static struct clksrc_clk clk_hsspi = {
- .clk = {
- .name = "hsspi-if",
- .parent = &clk_esysclk.clk,
- .ctrlbit = S3C2443_SCLKCON_HSSPICLK,
- .enable = s3c2443_clkcon_enable_s,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 4 },
-};
-
-
-/* clk_hsmcc_div
- *
- * this clock is sourced from epll, and is fed through a divider,
- * to a mux controlled by sclkcon where either it or a extclk can
- * be fed to the hsmmc block
-*/
-
-static struct clksrc_clk clk_hsmmc_div = {
- .clk = {
- .name = "hsmmc-div",
- .devname = "s3c-sdhci.1",
- .parent = &clk_esysclk.clk,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 6 },
-};
-
-static int s3c2443_setparent_hsmmc(struct clk *clk, struct clk *parent)
-{
- unsigned long clksrc = __raw_readl(S3C2443_SCLKCON);
-
- clksrc &= ~(S3C2443_SCLKCON_HSMMCCLK_EXT |
- S3C2443_SCLKCON_HSMMCCLK_EPLL);
-
- if (parent == &clk_epll)
- clksrc |= S3C2443_SCLKCON_HSMMCCLK_EPLL;
- else if (parent == &clk_ext)
- clksrc |= S3C2443_SCLKCON_HSMMCCLK_EXT;
- else
- return -EINVAL;
-
- if (clk->usage > 0) {
- __raw_writel(clksrc, S3C2443_SCLKCON);
- }
-
- clk->parent = parent;
- return 0;
-}
-
-static int s3c2443_enable_hsmmc(struct clk *clk, int enable)
-{
- return s3c2443_setparent_hsmmc(clk, clk->parent);
-}
-
-static struct clk clk_hsmmc = {
- .name = "hsmmc-if",
- .devname = "s3c-sdhci.1",
- .parent = &clk_hsmmc_div.clk,
- .enable = s3c2443_enable_hsmmc,
- .ops = &(struct clk_ops) {
- .set_parent = s3c2443_setparent_hsmmc,
- },
-};
-
-/* standard clock definitions */
-
-static struct clk init_clocks_off[] = {
- {
- .name = "sdi",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_SDI,
- }, {
- .name = "spi",
- .devname = "s3c2410-spi.0",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_SPI1,
- }
-};
-
-/* clocks to add straight away */
-
-static struct clksrc_clk *clksrcs[] __initdata = {
- &clk_hsspi,
- &clk_hsmmc_div,
-};
-
-static struct clk *clks[] __initdata = {
- &clk_hsmmc,
-};
-
-static struct clk_lookup s3c2443_clk_lookup[] = {
- CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_hsmmc),
- CLKDEV_INIT("s3c2443-spi.0", "spi_busclk2", &clk_hsspi.clk),
-};
-
-void __init s3c2443_init_clocks(int xtal)
-{
- unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
- int ptr;
-
- clk_epll.rate = s3c2443_get_epll(epllcon, xtal);
- clk_epll.parent = &clk_epllref.clk;
-
- s3c2443_common_init_clocks(xtal, s3c2443_get_mpll,
- armdiv, ARRAY_SIZE(armdiv),
- S3C2443_CLKDIV0_ARMDIV_MASK);
-
- s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
- s3c_register_clksrc(clksrcs[ptr], 1);
-
- /* We must be careful disabling the clocks we are not intending to
- * be using at boot time, as subsystems such as the LCD which do
- * their own DMA requests to the bus can cause the system to lockup
- * if they where in the middle of requesting bus access.
- *
- * Disabling the LCD clock if the LCD is active is very dangerous,
- * and therefore the bootloader should be careful to not enable
- * the LCD clock if it is not needed.
- */
-
- /* install (and disable) the clocks we do not need immediately */
-
- s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
- s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
- clkdev_add_table(s3c2443_clk_lookup, ARRAY_SIZE(s3c2443_clk_lookup));
-}
diff --git a/arch/arm/mach-s3c24xx/common-s3c2443.c b/arch/arm/mach-s3c24xx/common-s3c2443.c
deleted file mode 100644
index 65d3eef..0000000
--- a/arch/arm/mach-s3c24xx/common-s3c2443.c
+++ /dev/null
@@ -1,675 +0,0 @@
-/*
- * Common code for SoCs starting with the S3C2443
- *
- * Copyright (c) 2007, 2010 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty 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/io.h>
-
-#include <mach/regs-s3c2443-clock.h>
-
-#include <plat/clock.h>
-#include <plat/clock-clksrc.h>
-#include <plat/cpu.h>
-
-#include <plat/cpu-freq.h>
-
-
-static int s3c2443_gate(void __iomem *reg, struct clk *clk, int enable)
-{
- u32 ctrlbit = clk->ctrlbit;
- u32 con = __raw_readl(reg);
-
- if (enable)
- con |= ctrlbit;
- else
- con &= ~ctrlbit;
-
- __raw_writel(con, reg);
- return 0;
-}
-
-int s3c2443_clkcon_enable_h(struct clk *clk, int enable)
-{
- return s3c2443_gate(S3C2443_HCLKCON, clk, enable);
-}
-
-int s3c2443_clkcon_enable_p(struct clk *clk, int enable)
-{
- return s3c2443_gate(S3C2443_PCLKCON, clk, enable);
-}
-
-int s3c2443_clkcon_enable_s(struct clk *clk, int enable)
-{
- return s3c2443_gate(S3C2443_SCLKCON, clk, enable);
-}
-
-/* mpllref is a direct descendant of clk_xtal by default, but it is not
- * elided as the EPLL can be either sourced by the XTAL or EXTCLK and as
- * such directly equating the two source clocks is impossible.
- */
-static struct clk clk_mpllref = {
- .name = "mpllref",
- .parent = &clk_xtal,
-};
-
-static struct clk *clk_epllref_sources[] = {
- [0] = &clk_mpllref,
- [1] = &clk_mpllref,
- [2] = &clk_xtal,
- [3] = &clk_ext,
-};
-
-struct clksrc_clk clk_epllref = {
- .clk = {
- .name = "epllref",
- },
- .sources = &(struct clksrc_sources) {
- .sources = clk_epllref_sources,
- .nr_sources = ARRAY_SIZE(clk_epllref_sources),
- },
- .reg_src = { .reg = S3C2443_CLKSRC, .size = 2, .shift = 7 },
-};
-
-/* esysclk
- *
- * this is sourced from either the EPLL or the EPLLref clock
-*/
-
-static struct clk *clk_sysclk_sources[] = {
- [0] = &clk_epllref.clk,
- [1] = &clk_epll,
-};
-
-struct clksrc_clk clk_esysclk = {
- .clk = {
- .name = "esysclk",
- .parent = &clk_epll,
- },
- .sources = &(struct clksrc_sources) {
- .sources = clk_sysclk_sources,
- .nr_sources = ARRAY_SIZE(clk_sysclk_sources),
- },
- .reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 6 },
-};
-
-static unsigned long s3c2443_getrate_mdivclk(struct clk *clk)
-{
- unsigned long parent_rate = clk_get_rate(clk->parent);
- unsigned long div = __raw_readl(S3C2443_CLKDIV0);
-
- div &= S3C2443_CLKDIV0_EXTDIV_MASK;
- div >>= (S3C2443_CLKDIV0_EXTDIV_SHIFT-1); /* x2 */
-
- return parent_rate / (div + 1);
-}
-
-static struct clk clk_mdivclk = {
- .name = "mdivclk",
- .parent = &clk_mpllref,
- .ops = &(struct clk_ops) {
- .get_rate = s3c2443_getrate_mdivclk,
- },
-};
-
-static struct clk *clk_msysclk_sources[] = {
- [0] = &clk_mpllref,
- [1] = &clk_mpll,
- [2] = &clk_mdivclk,
- [3] = &clk_mpllref,
-};
-
-static struct clksrc_clk clk_msysclk = {
- .clk = {
- .name = "msysclk",
- .parent = &clk_xtal,
- },
- .sources = &(struct clksrc_sources) {
- .sources = clk_msysclk_sources,
- .nr_sources = ARRAY_SIZE(clk_msysclk_sources),
- },
- .reg_src = { .reg = S3C2443_CLKSRC, .size = 2, .shift = 3 },
-};
-
-/* prediv
- *
- * this divides the msysclk down to pass to h/p/etc.
- */
-
-static unsigned long s3c2443_prediv_getrate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned long clkdiv0 = __raw_readl(S3C2443_CLKDIV0);
-
- clkdiv0 &= S3C2443_CLKDIV0_PREDIV_MASK;
- clkdiv0 >>= S3C2443_CLKDIV0_PREDIV_SHIFT;
-
- return rate / (clkdiv0 + 1);
-}
-
-static struct clk clk_prediv = {
- .name = "prediv",
- .parent = &clk_msysclk.clk,
- .ops = &(struct clk_ops) {
- .get_rate = s3c2443_prediv_getrate,
- },
-};
-
-/* hclk divider
- *
- * divides the prediv and provides the hclk.
- */
-
-static unsigned long s3c2443_hclkdiv_getrate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned long clkdiv0 = __raw_readl(S3C2443_CLKDIV0);
-
- clkdiv0 &= S3C2443_CLKDIV0_HCLKDIV_MASK;
-
- return rate / (clkdiv0 + 1);
-}
-
-static struct clk_ops clk_h_ops = {
- .get_rate = s3c2443_hclkdiv_getrate,
-};
-
-/* pclk divider
- *
- * divides the hclk and provides the pclk.
- */
-
-static unsigned long s3c2443_pclkdiv_getrate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned long clkdiv0 = __raw_readl(S3C2443_CLKDIV0);
-
- clkdiv0 = ((clkdiv0 & S3C2443_CLKDIV0_HALF_PCLK) ? 1 : 0);
-
- return rate / (clkdiv0 + 1);
-}
-
-static struct clk_ops clk_p_ops = {
- .get_rate = s3c2443_pclkdiv_getrate,
-};
-
-/* armdiv
- *
- * this clock is sourced from msysclk and can have a number of
- * divider values applied to it to then be fed into armclk.
-*/
-
-static unsigned int *armdiv;
-static int nr_armdiv;
-static int armdivmask;
-
-static unsigned long s3c2443_armclk_roundrate(struct clk *clk,
- unsigned long rate)
-{
- unsigned long parent = clk_get_rate(clk->parent);
- unsigned long calc;
- unsigned best = 256; /* bigger than any value */
- unsigned div;
- int ptr;
-
- if (!nr_armdiv)
- return -EINVAL;
-
- for (ptr = 0; ptr < nr_armdiv; ptr++) {
- div = armdiv[ptr];
- if (div) {
- /* cpufreq provides 266mhz as 266666000 not 266666666 */
- calc = (parent / div / 1000) * 1000;
- if (calc <= rate && div < best)
- best = div;
- }
- }
-
- return parent / best;
-}
-
-static unsigned long s3c2443_armclk_getrate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned long clkcon0;
- int val;
-
- if (!nr_armdiv || !armdivmask)
- return -EINVAL;
-
- clkcon0 = __raw_readl(S3C2443_CLKDIV0);
- clkcon0 &= armdivmask;
- val = clkcon0 >> S3C2443_CLKDIV0_ARMDIV_SHIFT;
-
- return rate / armdiv[val];
-}
-
-static int s3c2443_armclk_setrate(struct clk *clk, unsigned long rate)
-{
- unsigned long parent = clk_get_rate(clk->parent);
- unsigned long calc;
- unsigned div;
- unsigned best = 256; /* bigger than any value */
- int ptr;
- int val = -1;
-
- if (!nr_armdiv || !armdivmask)
- return -EINVAL;
-
- for (ptr = 0; ptr < nr_armdiv; ptr++) {
- div = armdiv[ptr];
- if (div) {
- /* cpufreq provides 266mhz as 266666000 not 266666666 */
- calc = (parent / div / 1000) * 1000;
- if (calc <= rate && div < best) {
- best = div;
- val = ptr;
- }
- }
- }
-
- if (val >= 0) {
- unsigned long clkcon0;
-
- clkcon0 = __raw_readl(S3C2443_CLKDIV0);
- clkcon0 &= ~armdivmask;
- clkcon0 |= val << S3C2443_CLKDIV0_ARMDIV_SHIFT;
- __raw_writel(clkcon0, S3C2443_CLKDIV0);
- }
-
- return (val == -1) ? -EINVAL : 0;
-}
-
-static struct clk clk_armdiv = {
- .name = "armdiv",
- .parent = &clk_msysclk.clk,
- .ops = &(struct clk_ops) {
- .round_rate = s3c2443_armclk_roundrate,
- .get_rate = s3c2443_armclk_getrate,
- .set_rate = s3c2443_armclk_setrate,
- },
-};
-
-/* armclk
- *
- * this is the clock fed into the ARM core itself, from armdiv or from hclk.
- */
-
-static struct clk *clk_arm_sources[] = {
- [0] = &clk_armdiv,
- [1] = &clk_h,
-};
-
-static struct clksrc_clk clk_arm = {
- .clk = {
- .name = "armclk",
- },
- .sources = &(struct clksrc_sources) {
- .sources = clk_arm_sources,
- .nr_sources = ARRAY_SIZE(clk_arm_sources),
- },
- .reg_src = { .reg = S3C2443_CLKDIV0, .size = 1, .shift = 13 },
-};
-
-/* usbhost
- *
- * usb host bus-clock, usually 48MHz to provide USB bus clock timing
-*/
-
-static struct clksrc_clk clk_usb_bus_host = {
- .clk = {
- .name = "usb-bus-host-parent",
- .parent = &clk_esysclk.clk,
- .ctrlbit = S3C2443_SCLKCON_USBHOST,
- .enable = s3c2443_clkcon_enable_s,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 4 },
-};
-
-/* common clksrc clocks */
-
-static struct clksrc_clk clksrc_clks[] = {
- {
- /* camera interface bus-clock, divided down from esysclk */
- .clk = {
- .name = "camif-upll", /* same as 2440 name */
- .parent = &clk_esysclk.clk,
- .ctrlbit = S3C2443_SCLKCON_CAMCLK,
- .enable = s3c2443_clkcon_enable_s,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 4, .shift = 26 },
- }, {
- .clk = {
- .name = "display-if",
- .parent = &clk_esysclk.clk,
- .ctrlbit = S3C2443_SCLKCON_DISPCLK,
- .enable = s3c2443_clkcon_enable_s,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 8, .shift = 16 },
- },
-};
-
-static struct clksrc_clk clk_esys_uart = {
- /* ART baud-rate clock sourced from esysclk via a divisor */
- .clk = {
- .name = "uartclk",
- .parent = &clk_esysclk.clk,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 4, .shift = 8 },
-};
-
-static struct clk clk_i2s_ext = {
- .name = "i2s-ext",
-};
-
-/* i2s_eplldiv
- *
- * This clock is the output from the I2S divisor of ESYSCLK, and is separate
- * from the mux that comes after it (cannot merge into one single clock)
-*/
-
-static struct clksrc_clk clk_i2s_eplldiv = {
- .clk = {
- .name = "i2s-eplldiv",
- .parent = &clk_esysclk.clk,
- },
- .reg_div = { .reg = S3C2443_CLKDIV1, .size = 4, .shift = 12, },
-};
-
-/* i2s-ref
- *
- * i2s bus reference clock, selectable from external, esysclk or epllref
- *
- * Note, this used to be two clocks, but was compressed into one.
-*/
-
-static struct clk *clk_i2s_srclist[] = {
- [0] = &clk_i2s_eplldiv.clk,
- [1] = &clk_i2s_ext,
- [2] = &clk_epllref.clk,
- [3] = &clk_epllref.clk,
-};
-
-static struct clksrc_clk clk_i2s = {
- .clk = {
- .name = "i2s-if",
- .ctrlbit = S3C2443_SCLKCON_I2SCLK,
- .enable = s3c2443_clkcon_enable_s,
-
- },
- .sources = &(struct clksrc_sources) {
- .sources = clk_i2s_srclist,
- .nr_sources = ARRAY_SIZE(clk_i2s_srclist),
- },
- .reg_src = { .reg = S3C2443_CLKSRC, .size = 2, .shift = 14 },
-};
-
-static struct clk init_clocks_off[] = {
- {
- .name = "iis",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_IIS,
- }, {
- .name = "adc",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_ADC,
- }, {
- .name = "i2c",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_IIC,
- }
-};
-
-static struct clk init_clocks[] = {
- {
- .name = "dma.0",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_DMA0,
- }, {
- .name = "dma.1",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_DMA1,
- }, {
- .name = "dma.2",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_DMA2,
- }, {
- .name = "dma.3",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_DMA3,
- }, {
- .name = "dma.4",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_DMA4,
- }, {
- .name = "dma.5",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_DMA5,
- }, {
- .name = "gpio",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_GPIO,
- }, {
- .name = "usb-host",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_USBH,
- }, {
- .name = "usb-device",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_USBD,
- }, {
- .name = "lcd",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_LCDC,
-
- }, {
- .name = "timers",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_PWMT,
- }, {
- .name = "cfc",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_CFC,
- }, {
- .name = "ssmc",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_SSMC,
- }, {
- .name = "uart",
- .devname = "s3c2440-uart.0",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_UART0,
- }, {
- .name = "uart",
- .devname = "s3c2440-uart.1",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_UART1,
- }, {
- .name = "uart",
- .devname = "s3c2440-uart.2",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_UART2,
- }, {
- .name = "uart",
- .devname = "s3c2440-uart.3",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_UART3,
- }, {
- .name = "rtc",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_RTC,
- }, {
- .name = "watchdog",
- .parent = &clk_p,
- .ctrlbit = S3C2443_PCLKCON_WDT,
- }, {
- .name = "ac97",
- .parent = &clk_p,
- .ctrlbit = S3C2443_PCLKCON_AC97,
- }, {
- .name = "nand",
- .parent = &clk_h,
- }, {
- .name = "usb-bus-host",
- .parent = &clk_usb_bus_host.clk,
- }
-};
-
-static struct clk hsmmc1_clk = {
- .name = "hsmmc",
- .devname = "s3c-sdhci.1",
- .parent = &clk_h,
- .enable = s3c2443_clkcon_enable_h,
- .ctrlbit = S3C2443_HCLKCON_HSMMC,
-};
-
-static struct clk hsspi_clk = {
- .name = "spi",
- .devname = "s3c2443-spi.0",
- .parent = &clk_p,
- .enable = s3c2443_clkcon_enable_p,
- .ctrlbit = S3C2443_PCLKCON_HSSPI,
-};
-
-/* EPLLCON compatible enough to get on/off information */
-
-void __init_or_cpufreq s3c2443_common_setup_clocks(pll_fn get_mpll)
-{
- unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
- unsigned long mpllcon = __raw_readl(S3C2443_MPLLCON);
- struct clk *xtal_clk;
- unsigned long xtal;
- unsigned long pll;
- int ptr;
-
- xtal_clk = clk_get(NULL, "xtal");
- xtal = clk_get_rate(xtal_clk);
- clk_put(xtal_clk);
-
- pll = get_mpll(mpllcon, xtal);
- clk_msysclk.clk.rate = pll;
- clk_mpll.rate = pll;
-
- printk("CPU: MPLL %s %ld.%03ld MHz, cpu %ld.%03ld MHz, mem %ld.%03ld MHz, pclk %ld.%03ld MHz\n",
- (mpllcon & S3C2443_PLLCON_OFF) ? "off" : "on",
- print_mhz(pll), print_mhz(clk_get_rate(&clk_armdiv)),
- print_mhz(clk_get_rate(&clk_h)),
- print_mhz(clk_get_rate(&clk_p)));
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrc_clks); ptr++)
- s3c_set_clksrc(&clksrc_clks[ptr], true);
-
- /* ensure usb bus clock is within correct rate of 48MHz */
-
- if (clk_get_rate(&clk_usb_bus_host.clk) != (48 * 1000 * 1000)) {
- printk(KERN_INFO "Warning: USB host bus not at 48MHz\n");
- clk_set_rate(&clk_usb_bus_host.clk, 48*1000*1000);
- }
-
- printk("CPU: EPLL %s %ld.%03ld MHz, usb-bus %ld.%03ld MHz\n",
- (epllcon & S3C2443_PLLCON_OFF) ? "off" : "on",
- print_mhz(clk_get_rate(&clk_epll)),
- print_mhz(clk_get_rate(&clk_usb_bus)));
-}
-
-static struct clk *clks[] __initdata = {
- &clk_prediv,
- &clk_mpllref,
- &clk_mdivclk,
- &clk_ext,
- &clk_epll,
- &clk_usb_bus,
- &clk_armdiv,
- &hsmmc1_clk,
- &hsspi_clk,
-};
-
-static struct clksrc_clk *clksrcs[] __initdata = {
- &clk_i2s_eplldiv,
- &clk_i2s,
- &clk_usb_bus_host,
- &clk_epllref,
- &clk_esysclk,
- &clk_msysclk,
- &clk_arm,
-};
-
-static struct clk_lookup s3c2443_clk_lookup[] = {
- CLKDEV_INIT(NULL, "clk_uart_baud1", &s3c24xx_uclk),
- CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
- CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_esys_uart.clk),
- CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &hsmmc1_clk),
- CLKDEV_INIT("s3c2443-spi.0", "spi_busclk0", &hsspi_clk),
-};
-
-void __init s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
- unsigned int *divs, int nr_divs,
- int divmask)
-{
- int ptr;
-
- armdiv = divs;
- nr_armdiv = nr_divs;
- armdivmask = divmask;
-
- /* s3c2443 parents h clock from prediv */
- clk_h.parent = &clk_prediv;
- clk_h.ops = &clk_h_ops;
-
- /* and p clock from h clock */
- clk_p.parent = &clk_h;
- clk_p.ops = &clk_p_ops;
-
- clk_usb_bus.parent = &clk_usb_bus_host.clk;
- clk_epll.parent = &clk_epllref.clk;
-
- s3c24xx_register_baseclocks(xtal);
- s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
- s3c_register_clksrc(clksrcs[ptr], 1);
-
- s3c_register_clksrc(clksrc_clks, ARRAY_SIZE(clksrc_clks));
- s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
-
- /* See s3c2443/etc notes on disabling clocks@init time */
- s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
- s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
- clkdev_add_table(s3c2443_clk_lookup, ARRAY_SIZE(s3c2443_clk_lookup));
-
- s3c2443_common_setup_clocks(get_mpll);
-}
diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c
index 46af4e5..015e6c0 100644
--- a/arch/arm/mach-s3c24xx/common.c
+++ b/arch/arm/mach-s3c24xx/common.c
@@ -145,7 +145,6 @@ static struct cpu_table cpu_ids[] __initdata = {
.idcode = 0x32450003,
.idmask = 0xffffffff,
.map_io = s3c2416_map_io,
- .init_clocks = s3c2416_init_clocks,
.init_uarts = s3c2416_init_uarts,
.init = s3c2416_init,
.name = name_s3c2416,
@@ -154,7 +153,6 @@ static struct cpu_table cpu_ids[] __initdata = {
.idcode = 0x32443001,
.idmask = 0xffffffff,
.map_io = s3c2443_map_io,
- .init_clocks = s3c2443_init_clocks,
.init_uarts = s3c2443_init_uarts,
.init = s3c2443_init,
.name = name_s3c2443,
@@ -537,3 +535,17 @@ struct platform_device s3c2443_device_dma = {
},
};
#endif
+
+#ifdef CONFIG_CPU_S3C2416
+void __init s3c2416_init_clocks(int xtal)
+{
+ s3c2443_common_clk_init(NULL, xtal, 0, S3C24XX_VA_CLKPWR);
+}
+#endif
+
+#ifdef CONFIG_CPU_S3C2443
+void __init s3c2443_init_clocks(int xtal)
+{
+ s3c2443_common_clk_init(NULL, xtal, 1, S3C24XX_VA_CLKPWR);
+}
+#endif
diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h
index e46c104..d7323f1 100644
--- a/arch/arm/mach-s3c24xx/common.h
+++ b/arch/arm/mach-s3c24xx/common.h
@@ -114,4 +114,10 @@ extern struct platform_device s3c2412_device_dma;
extern struct platform_device s3c2440_device_dma;
extern struct platform_device s3c2443_device_dma;
+#ifdef CONFIG_S3C2443_COMMON_CLK
+void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f,
+ int current_soc,
+ void __iomem *reg_base);
+#endif
+
#endif /* __ARCH_ARM_MACH_S3C24XX_COMMON_H */
diff --git a/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c
index f50454a..0a86953 100644
--- a/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c
+++ b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c
@@ -18,59 +18,23 @@
#include <linux/clocksource.h>
#include <linux/irqchip.h>
#include <linux/of_platform.h>
-#include <linux/serial_core.h>
#include <asm/mach/arch.h>
#include <mach/map.h>
#include <plat/cpu.h>
#include <plat/pm.h>
-#include <plat/regs-serial.h>
#include "common.h"
-/*
- * The following lookup table is used to override device names when devices
- * are registered from device tree. This is temporarily added to enable
- * device tree support addition for the S3C2416 architecture.
- *
- * For drivers that require platform data to be provided from the machine
- * file, a platform data pointer can also be supplied along with the
- * devices names. Usually, the platform data elements that cannot be parsed
- * from the device tree by the drivers (example: function pointers) are
- * supplied. But it should be noted that this is a temporary mechanism and
- * at some point, the drivers should be capable of parsing all the platform
- * data from the device tree.
- */
-static const struct of_dev_auxdata s3c2416_auxdata_lookup[] __initconst = {
- OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART,
- "s3c2440-uart.0", NULL),
- OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART + 0x4000,
- "s3c2440-uart.1", NULL),
- OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART + 0x8000,
- "s3c2440-uart.2", NULL),
- OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART + 0xC000,
- "s3c2440-uart.3", NULL),
- OF_DEV_AUXDATA("samsung,s3c6410-sdhci", S3C_PA_HSMMC0,
- "s3c-sdhci.0", NULL),
- OF_DEV_AUXDATA("samsung,s3c6410-sdhci", S3C_PA_HSMMC1,
- "s3c-sdhci.1", NULL),
- OF_DEV_AUXDATA("samsung,s3c2440-i2c", S3C_PA_IIC,
- "s3c2440-i2c.0", NULL),
- {},
-};
-
static void __init s3c2416_dt_map_io(void)
{
s3c24xx_init_io(NULL, 0);
- s3c24xx_init_clocks(12000000);
}
static void __init s3c2416_dt_machine_init(void)
{
- of_platform_populate(NULL, of_default_bus_match_table,
- s3c2416_auxdata_lookup, NULL);
-
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
s3c_pm_init();
}
@@ -86,6 +50,5 @@ DT_MACHINE_START(S3C2416_DT, "Samsung S3C2416 (Flattened Device Tree)")
.map_io = s3c2416_dt_map_io,
.init_irq = irqchip_init,
.init_machine = s3c2416_dt_machine_init,
- .init_time = clocksource_of_init,
.restart = s3c2416_restart,
MACHINE_END
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2416.c b/arch/arm/mach-s3c24xx/mach-smdk2416.c
index f88e672..3ec6d49 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2416.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2416.c
@@ -218,10 +218,15 @@ static struct platform_device *smdk2416_devices[] __initdata = {
&s3c2443_device_dma,
};
+static void __init smdk2416_init_time(void)
+{
+ s3c2416_init_clocks(12000000);
+ samsung_timer_init();
+}
+
static void __init smdk2416_map_io(void)
{
s3c24xx_init_io(smdk2416_iodesc, ARRAY_SIZE(smdk2416_iodesc));
- s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(smdk2416_uartcfgs, ARRAY_SIZE(smdk2416_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}
@@ -256,6 +261,6 @@ MACHINE_START(SMDK2416, "SMDK2416")
.init_irq = s3c2416_init_irq,
.map_io = smdk2416_map_io,
.init_machine = smdk2416_machine_init,
- .init_time = samsung_timer_init,
+ .init_time = smdk2416_init_time,
.restart = s3c2416_restart,
MACHINE_END
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2443.c b/arch/arm/mach-s3c24xx/mach-smdk2443.c
index d9933fc..58da97b 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2443.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2443.c
@@ -121,11 +121,16 @@ static struct platform_device *smdk2443_devices[] __initdata = {
static void __init smdk2443_map_io(void)
{
s3c24xx_init_io(smdk2443_iodesc, ARRAY_SIZE(smdk2443_iodesc));
- s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(smdk2443_uartcfgs, ARRAY_SIZE(smdk2443_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}
+static void __init smdk2443_init_time(void)
+{
+ s3c2443_init_clocks(12000000);
+ samsung_timer_init();
+}
+
static void __init smdk2443_machine_init(void)
{
s3c_i2c0_set_platdata(NULL);
@@ -145,6 +150,6 @@ MACHINE_START(SMDK2443, "SMDK2443")
.init_irq = s3c2443_init_irq,
.map_io = smdk2443_map_io,
.init_machine = smdk2443_machine_init,
- .init_time = samsung_timer_init,
+ .init_time = smdk2443_init_time,
.restart = s3c2443_restart,
MACHINE_END
--
1.7.10.4
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