diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-27 23:14:44 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-27 23:14:44 (GMT) |
commit | 281b05392fc2cb26209b4d85abaf4889ab1991f3 (patch) | |
tree | bbf5000ce7bd739b1ca85e9918741e285d267c7c /arch/arm/mach-s5pv210 | |
parent | 48d554418d3bfbba5e9dc1ebdf352f1b1f3ff4ee (diff) | |
parent | bde755679a3ba5af0d16231f8532e8373c5e2ecc (diff) | |
download | linux-281b05392fc2cb26209b4d85abaf4889ab1991f3.tar.xz |
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: SoC specific updates" from Arnd Bergmann:
"These changes are all specific to an soc family or the code for one
soc. Lots of work for Tegra3 this time, but also a lot of other
platforms. There will be another (smaller) set of soc patches later
in the merge window for stuff that has dependencies on external trees
or that was sent just before the merge window opened.
The asoc tree added a few devices to the i.mx platform, which conflict
with other devices added in the same place here.
The tegra Makefile conflicts between a number of branches, mostly
because of changes regarding localtimer.c, which was removed in the
end.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fix up some trivial conflicts, including the mentioned Tegra Makefile.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
ARM: EXYNOS: fix cycle count for periodic mode of clock event timers
ARM: EXYNOS: add support JPEG
ARM: EXYNOS: Add DMC1, allow PPMU access for DMC
ARM: SAMSUNG: Correct MIPI-CSIS io memory resource definition
ARM: SAMSUNG: fix __init attribute on regarding s3c_set_platdata()
ARM: SAMSUNG: Add __init attribute to samsung_bl_set()
ARM: S5PV210: Add usb otg phy control
ARM: S3C64XX: Add usb otg phy control
ARM: EXYNOS: Enable l2 configuration through device tree
ARM: EXYNOS: remove useless code to save/restore L2
ARM: EXYNOS: save L2 settings during bootup
ARM: S5P: add L2 early resume code
ARM: EXYNOS: Add support AFTR mode on EXYNOS4210
ARM: mx35: Setup the AIPS registers
ARM: mx5: Use common function for configuring AIPS
ARM: mx3: Setup AIPS registers
ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI
ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE
ARM: imx: update imx_v6_v7_defconfig
ARM: tegra: Demote EMC clock inconsistency BUG to WARN
...
Diffstat (limited to 'arch/arm/mach-s5pv210')
-rw-r--r-- | arch/arm/mach-s5pv210/Kconfig | 6 | ||||
-rw-r--r-- | arch/arm/mach-s5pv210/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-s5pv210/include/mach/regs-sys.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-s5pv210/setup-usb-phy.c | 90 |
4 files changed, 97 insertions, 4 deletions
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig index 2cdc42e..82525e3 100644 --- a/arch/arm/mach-s5pv210/Kconfig +++ b/arch/arm/mach-s5pv210/Kconfig @@ -65,6 +65,11 @@ config S5PV210_SETUP_SPI help Common setup code for SPI GPIO configurations. +config S5PV210_SETUP_USB_PHY + bool + help + Common setup code for USB PHY controller + menu "S5PC110 Machines" config MACH_AQUILA @@ -107,6 +112,7 @@ config MACH_GONI select S5PV210_SETUP_KEYPAD select S5PV210_SETUP_SDHCI select S5PV210_SETUP_FIMC + select S5PV210_SETUP_USB_PHY help Machine support for Samsung GONI board S5PC110(MCP) is one of package option of S5PV210 diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile index 76a121d..1c4e419 100644 --- a/arch/arm/mach-s5pv210/Makefile +++ b/arch/arm/mach-s5pv210/Makefile @@ -39,3 +39,4 @@ obj-$(CONFIG_S5PV210_SETUP_IDE) += setup-ide.o obj-$(CONFIG_S5PV210_SETUP_KEYPAD) += setup-keypad.o obj-$(CONFIG_S5PV210_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o obj-$(CONFIG_S5PV210_SETUP_SPI) += setup-spi.o +obj-$(CONFIG_S5PV210_SETUP_USB_PHY) += setup-usb-phy.o diff --git a/arch/arm/mach-s5pv210/include/mach/regs-sys.h b/arch/arm/mach-s5pv210/include/mach/regs-sys.h index 26691d3..cccb1ed 100644 --- a/arch/arm/mach-s5pv210/include/mach/regs-sys.h +++ b/arch/arm/mach-s5pv210/include/mach/regs-sys.h @@ -13,7 +13,3 @@ #define S5PV210_USB_PHY_CON (S3C_VA_SYS + 0xE80C) #define S5PV210_USB_PHY0_EN (1 << 0) #define S5PV210_USB_PHY1_EN (1 << 1) - -/* compatibility defines for s3c-hsotg driver */ -#define S3C64XX_OTHERS S5PV210_USB_PHY_CON -#define S3C64XX_OTHERS_USBMASK S5PV210_USB_PHY0_EN diff --git a/arch/arm/mach-s5pv210/setup-usb-phy.c b/arch/arm/mach-s5pv210/setup-usb-phy.c new file mode 100644 index 0000000..be39cf4 --- /dev/null +++ b/arch/arm/mach-s5pv210/setup-usb-phy.c @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2012 Samsung Electronics Co.Ltd + * Author: Joonyoung Shim <jy0922.shim@samsung.com> + * + * 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 Foundationr + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/platform_device.h> +#include <mach/map.h> +#include <mach/regs-sys.h> +#include <plat/cpu.h> +#include <plat/regs-usb-hsotg-phy.h> +#include <plat/usb-phy.h> + +static int s5pv210_usb_otgphy_init(struct platform_device *pdev) +{ + struct clk *xusbxti; + u32 phyclk; + + writel(readl(S5PV210_USB_PHY_CON) | S5PV210_USB_PHY0_EN, + S5PV210_USB_PHY_CON); + + /* set clock frequency for PLL */ + phyclk = readl(S3C_PHYCLK) & ~S3C_PHYCLK_CLKSEL_MASK; + + xusbxti = clk_get(&pdev->dev, "xusbxti"); + if (xusbxti && !IS_ERR(xusbxti)) { + switch (clk_get_rate(xusbxti)) { + case 12 * MHZ: + phyclk |= S3C_PHYCLK_CLKSEL_12M; + break; + case 24 * MHZ: + phyclk |= S3C_PHYCLK_CLKSEL_24M; + break; + default: + case 48 * MHZ: + /* default reference clock */ + break; + } + clk_put(xusbxti); + } + + /* TODO: select external clock/oscillator */ + writel(phyclk | S3C_PHYCLK_CLK_FORCE, S3C_PHYCLK); + + /* set to normal OTG PHY */ + writel((readl(S3C_PHYPWR) & ~S3C_PHYPWR_NORMAL_MASK), S3C_PHYPWR); + mdelay(1); + + /* reset OTG PHY and Link */ + writel(S3C_RSTCON_PHY | S3C_RSTCON_HCLK | S3C_RSTCON_PHYCLK, + S3C_RSTCON); + udelay(20); /* at-least 10uS */ + writel(0, S3C_RSTCON); + + return 0; +} + +static int s5pv210_usb_otgphy_exit(struct platform_device *pdev) +{ + writel((readl(S3C_PHYPWR) | S3C_PHYPWR_ANALOG_POWERDOWN | + S3C_PHYPWR_OTG_DISABLE), S3C_PHYPWR); + + writel(readl(S5PV210_USB_PHY_CON) & ~S5PV210_USB_PHY0_EN, + S5PV210_USB_PHY_CON); + + return 0; +} + +int s5p_usb_phy_init(struct platform_device *pdev, int type) +{ + if (type == S5P_USB_PHY_DEVICE) + return s5pv210_usb_otgphy_init(pdev); + + return -EINVAL; +} + +int s5p_usb_phy_exit(struct platform_device *pdev, int type) +{ + if (type == S5P_USB_PHY_DEVICE) + return s5pv210_usb_otgphy_exit(pdev); + + return -EINVAL; +} |