This commit adds Actions Semi OWL SoC family support with S900 as the first target SoC.

Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org --- arch/arm/Kconfig | 9 +++++++++ arch/arm/Makefile | 1 + arch/arm/dts/s900.dtsi | 23 +++++++++++++++++++++++ arch/arm/mach-owl/Kconfig | 6 ++++++ arch/arm/mach-owl/Makefile | 3 +++ arch/arm/mach-owl/sysmap-s900.c | 32 ++++++++++++++++++++++++++++++++ 6 files changed, 74 insertions(+) create mode 100644 arch/arm/dts/s900.dtsi create mode 100644 arch/arm/mach-owl/Kconfig create mode 100644 arch/arm/mach-owl/Makefile create mode 100644 arch/arm/mach-owl/sysmap-s900.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index dde422bc5d..ec0bb5a42b 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -699,6 +699,13 @@ config ARCH_MX5 select BOARD_EARLY_INIT_F imply MXC_GPIO

+config ARCH_OWL + bool "Actions Semi OWL SoCs" + select ARM64 + select DM + select DM_SERIAL + select OF_CONTROL + config ARCH_QEMU bool "QEMU Virtual Platform" select DM @@ -1335,6 +1342,8 @@ source "arch/arm/cpu/armv8/fsl-layerscape/Kconfig"

source "arch/arm/mach-orion5x/Kconfig"

+source "arch/arm/mach-owl/Kconfig" + source "arch/arm/mach-rmobile/Kconfig"

source "arch/arm/mach-meson/Kconfig" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 680c6e8516..f15b2287df 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -66,6 +66,7 @@ machine-$(CONFIG_ARCH_MVEBU) += mvebu # TODO: rename CONFIG_ORION5X -> CONFIG_ARCH_ORION5X machine-$(CONFIG_ORION5X) += orion5x machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2 +machine-$(CONFIG_ARCH_OWL) += owl machine-$(CONFIG_ARCH_S5PC1XX) += s5pc1xx machine-$(CONFIG_ARCH_SUNXI) += sunxi machine-$(CONFIG_ARCH_SNAPDRAGON) += snapdragon diff --git a/arch/arm/dts/s900.dtsi b/arch/arm/dts/s900.dtsi new file mode 100644 index 0000000000..3bd14b82d4 --- /dev/null +++ b/arch/arm/dts/s900.dtsi @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// Device Tree Source for Actions Semi S900 SoC +// +// Copyright (C) 2015 Actions Semi Co., Ltd. +// Copyright (C) 2018 Manivannan Sadhasivam manivannan.sadhasivam@linaro.org + +/dts-v1/; + +/ { + compatible = "actions,s900"; + #address-cells = <0x2>; + #size-cells = <0x2>; + + soc { + u-boot,dm-pre-reloc; + compatible = "simple-bus"; + #address-cells = <0x2>; + #size-cells = <0x2>; + ranges; + }; +}; + diff --git a/arch/arm/mach-owl/Kconfig b/arch/arm/mach-owl/Kconfig new file mode 100644 index 0000000000..f695c16d1e --- /dev/null +++ b/arch/arm/mach-owl/Kconfig @@ -0,0 +1,6 @@ +if ARCH_OWL + +config SYS_SOC + default "owl" + +endif diff --git a/arch/arm/mach-owl/Makefile b/arch/arm/mach-owl/Makefile new file mode 100644 index 0000000000..1b43dc2921 --- /dev/null +++ b/arch/arm/mach-owl/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0+ + +obj-y += sysmap-s900.o diff --git a/arch/arm/mach-owl/sysmap-s900.c b/arch/arm/mach-owl/sysmap-s900.c new file mode 100644 index 0000000000..f78b639740 --- /dev/null +++ b/arch/arm/mach-owl/sysmap-s900.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Actions Semi S900 Memory map + * + * Copyright (C) 2015 Actions Semi Co., Ltd. + * Copyright (C) 2018 Manivannan Sadhasivam manivannan.sadhasivam@linaro.org + */ + +#include <common.h> +#include <asm/armv8/mmu.h> + +static struct mm_region s900_mem_map[] = { + { + .virt = 0x0UL, /* DDR */ + .phys = 0x0UL, /* DDR */ + .size = 0x80000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, { + .virt = 0xE0000000UL, /* Peripheral block */ + .phys = 0xE0000000UL, /* Peripheral block */ + .size = 0x08000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_NON_SHARE | + PTE_BLOCK_PXN | PTE_BLOCK_UXN + }, { + /* List terminator */ + 0, + } +}; + +struct mm_region *mem_map = s900_mem_map;

This commit adds Actions Semi S900 CMU register definitions to clock bindings. --- include/dt-bindings/clock/s900_cmu.h | 77 ++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 include/dt-bindings/clock/s900_cmu.h

diff --git a/include/dt-bindings/clock/s900_cmu.h b/include/dt-bindings/clock/s900_cmu.h new file mode 100644 index 0000000000..2685a6df4a --- /dev/null +++ b/include/dt-bindings/clock/s900_cmu.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2015 Actions Semi Co., Ltd. + * Copyright (C) 2018 Manivannan Sadhasivam manivannan.sadhasivam@linaro.org + * + */ + +#ifndef _DT_BINDINGS_CLOCK_S900_CMU_H_ +#define _DT_BINDINGS_CLOCK_S900_CMU_H_ + +/* Module Clock ID */ +#define CLOCK_DDRCH1 0 +#define CLOCK_DMAC 1 +#define CLOCK_DDRCH0 2 +#define CLOCK_BROM 3 +#define CLOCK_NANDC0 4 +#define CLOCK_SD0 5 +#define CLOCK_SD1 6 +#define CLOCK_SD2 7 +#define CLOCK_DE 8 +#define CLOCK_LVDS 9 +#define CLOCK_EDP 10 +#define CLOCK_NANDC1 11 +#define CLOCK_DSI 12 +#define CLOCK_CSI0 13 +#define CLOCK_BISP 14 +#define CLOCK_CSI1 15 +#define CLOCK_SD3 16 +#define CLOCK_I2C4 17 +#define CLOCK_GPIO 18 +#define CLOCK_DMM 19 +#define CLOCK_I2STX 20 +#define CLOCK_I2SRX 21 +#define CLOCK_HDMIA 22 +#define CLOCK_SPDIF 23 +#define CLOCK_PCM0 24 +#define CLOCK_VDE 25 +#define CLOCK_VCE 26 +#define CLOCK_HDE 27 +#define CLOCK_SHARESRAM 28 +#define CLOCK_CMU_DDR1 29 +#define CLOCK_GPU3D 30 +#define CLOCK_CMUDDR0 31 +#define CLOCK_SPEED 32 +#define CLOCK_I2C5 33 +#define CLOCK_THERMAL 34 +#define CLOCK_HDMI 35 +#define CLOCK_PWM4 36 +#define CLOCK_PWM5 37 +#define CLOCK_UART0 38 +#define CLOCK_UART1 39 +#define CLOCK_UART2 40 +#define CLOCK_IRC 41 +#define CLOCK_SPI0 42 +#define CLOCK_SPI1 43 +#define CLOCK_SPI2 44 +#define CLOCK_SPI3 45 +#define CLOCK_I2C0 46 +#define CLOCK_I2C1 47 +#define CLOCK_PCM1 48 +#define CLOCK_IMX 49 +#define CLOCK_UART6 50 +#define CLOCK_UART3 51 +#define CLOCK_UART4 52 +#define CLOCK_UART5 53 +#define CLOCK_ETHERNET 54 +#define CLOCK_PWM0 55 +#define CLOCK_PWM1 56 +#define CLOCK_PWM2 57 +#define CLOCK_PWM3 58 +#define CLOCK_TIMER 59 +#define CLOCK_SE 60 +#define CLOCK_HDCP2TX 61 +#define CLOCK_I2C2 62 +#define CLOCK_I2C3 63 + +#endif

This commit adds Actions Semi OWL family base clock and S900 SoC specific clock support. For S900 peripheral clock support, only UART clock has been added for now.

Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org --- arch/arm/include/asm/arch-owl/clk_owl.h | 61 +++++++++++++ arch/arm/include/asm/arch-owl/regs_s900.h | 64 +++++++++++++ arch/arm/mach-owl/Kconfig | 2 +- drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/owl/Kconfig | 12 +++ drivers/clk/owl/Makefile | 4 + drivers/clk/owl/clk_owl.c | 60 +++++++++++++ drivers/clk/owl/clk_s900.c | 104 ++++++++++++++++++++++ 9 files changed, 308 insertions(+), 1 deletion(-) create mode 100644 arch/arm/include/asm/arch-owl/clk_owl.h create mode 100644 arch/arm/include/asm/arch-owl/regs_s900.h create mode 100644 drivers/clk/owl/Kconfig create mode 100644 drivers/clk/owl/Makefile create mode 100644 drivers/clk/owl/clk_owl.c create mode 100644 drivers/clk/owl/clk_s900.c

diff --git a/arch/arm/include/asm/arch-owl/clk_owl.h b/arch/arm/include/asm/arch-owl/clk_owl.h new file mode 100644 index 0000000000..1ad8e80e28 --- /dev/null +++ b/arch/arm/include/asm/arch-owl/clk_owl.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Actions Semi OWL Clock Definitions + * + * Copyright (C) 2015 Actions Semi Co., Ltd. + * Copyright (C) 2018 Manivannan Sadhasivam manivannan.sadhasivam@linaro.org + * + */ + +#ifndef _OWL_CLK_OWL_H_ +#define _OWL_CLK_OWL_H_ + +#include <clk-uclass.h> + +struct owl_clk_priv { + phys_addr_t base; +}; + +/* BUSCLK register definitions */ +#define CMU_PDBGDIV_8 7 +#define CMU_PDBGDIV_SHIFT 26 +#define CMU_PDBGDIV_DIV (CMU_PDBGDIV_8 << CMU_PDBGDIV_SHIFT) +#define CMU_PERDIV_8 7 +#define CMU_PERDIV_SHIFT 20 +#define CMU_PERDIV_DIV (CMU_PERDIV_8 << CMU_PERDIV_SHIFT) +#define CMU_NOCDIV_2 1 +#define CMU_NOCDIV_SHIFT 19 +#define CMU_NOCDIV_DIV (CMU_NOCDIV_2 << CMU_NOCDIV_SHIFT) +#define CMU_DMMCLK_SRC_APLL 2 +#define CMU_DMMCLK_SRC_SHIFT 10 +#define CMU_DMMCLK_SRC (CMU_DMMCLK_SRC_APLL << CMU_DMMCLK_SRC_SHIFT) +#define CMU_APBCLK_DIV BIT(8) +#define CMU_NOCCLK_SRC BIT(7) +#define CMU_AHBCLK_DIV BIT(4) +#define CMU_CORECLK_MASK 3 +#define CMU_CORECLK_CPLL BIT(1) +#define CMU_CORECLK_HOSC BIT(0) + +/* COREPLL register definitions */ +#define CMU_COREPLL_EN BIT(9) +#define CMU_COREPLL_HOSC_EN BIT(8) +#define CMU_COREPLL_OUT (1104 / 24) + +/* DEVPLL register definitions */ +#define CMU_DEVPLL_CLK BIT(12) +#define CMU_DEVPLL_EN BIT(8) +#define CMU_DEVPLL_OUT (660 / 6) + +/* UARTCLK register definitions */ +#define CMU_UARTCLK_SRC_DEVPLL BIT(16) + +/* DEVCLKEN1 register definitions */ +#define CMU_DEVCLKEN1_UART5 BIT(21) + +#define PLL_STABILITY_WAIT_US 50 + +void owl_clk_init(struct owl_clk_priv *priv); +int owl_periph_clk_enable(struct clk *clk); +int owl_periph_clk_disable(struct clk *clk); + +#endif diff --git a/arch/arm/include/asm/arch-owl/regs_s900.h b/arch/arm/include/asm/arch-owl/regs_s900.h new file mode 100644 index 0000000000..9e9106ddaa --- /dev/null +++ b/arch/arm/include/asm/arch-owl/regs_s900.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Actions Semi S900 Register Definitions + * + * Copyright (C) 2015 Actions Semi Co., Ltd. + * Copyright (C) 2018 Manivannan Sadhasivam manivannan.sadhasivam@linaro.org + * + */ + +#ifndef _OWL_REGS_S900_H_ +#define _OWL_REGS_S900_H_ + +/* CMU registers */ +#define CMU_COREPLL (0x0000) +#define CMU_DEVPLL (0x0004) +#define CMU_DDRPLL (0x0008) +#define CMU_NANDPLL (0x000C) +#define CMU_DISPLAYPLL (0x0010) +#define CMU_AUDIOPLL (0x0014) +#define CMU_TVOUTPLL (0x0018) +#define CMU_BUSCLK (0x001C) +#define CMU_SENSORCLK (0x0020) +#define CMU_LCDCLK (0x0024) +#define CMU_DSICLK (0x0028) +#define CMU_CSICLK (0x002C) +#define CMU_DECLK (0x0030) +#define CMU_BISPCLK (0x0034) +#define CMU_IMXCLK (0x0038) +#define CMU_HDECLK (0x003C) +#define CMU_VDECLK (0x0040) +#define CMU_VCECLK (0x0044) +#define CMU_NANDCCLK (0x004C) +#define CMU_SD0CLK (0x0050) +#define CMU_SD1CLK (0x0054) +#define CMU_SD2CLK (0x0058) +#define CMU_UART0CLK (0x005C) +#define CMU_UART1CLK (0x0060) +#define CMU_UART2CLK (0x0064) +#define CMU_PWM0CLK (0x0070) +#define CMU_PWM1CLK (0x0074) +#define CMU_PWM2CLK (0x0078) +#define CMU_PWM3CLK (0x007C) +#define CMU_USBPLL (0x0080) +#define CMU_ASSISTPLL (0x0084) +#define CMU_EDPCLK (0x0088) +#define CMU_GPU3DCLK (0x0090) +#define CMU_CORECTL (0x009C) +#define CMU_DEVCLKEN0 (0x00A0) +#define CMU_DEVCLKEN1 (0x00A4) +#define CMU_DEVRST0 (0x00A8) +#define CMU_DEVRST1 (0x00AC) +#define CMU_UART3CLK (0x00B0) +#define CMU_UART4CLK (0x00B4) +#define CMU_UART5CLK (0x00B8) +#define CMU_UART6CLK (0x00BC) +#define CMU_TLSCLK (0x00C0) +#define CMU_SD3CLK (0x00C4) +#define CMU_PWM4CLK (0x00C8) +#define CMU_PWM5CLK (0x00CC) +#define CMU_ANALOGDEBUG (0x00D4) +#define CMU_TVOUTPLLDEBUG0 (0x00EC) +#define CMU_TVOUTPLLDEBUG1 (0x00FC) + +#endif diff --git a/arch/arm/mach-owl/Kconfig b/arch/arm/mach-owl/Kconfig index b0b506dbb4..199e772988 100644 --- a/arch/arm/mach-owl/Kconfig +++ b/arch/arm/mach-owl/Kconfig @@ -4,7 +4,7 @@ config SYS_SOC default "owl"

choice - prompt "Actions OWL SoCs board select" + prompt "Actions Semi OWL SoCs board select" optional

config TARGET_BUBBLEGUM_96 diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index edb4ca58ea..18bf8a6d28 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -89,6 +89,7 @@ source "drivers/clk/exynos/Kconfig" source "drivers/clk/at91/Kconfig" source "drivers/clk/renesas/Kconfig" source "drivers/clk/mvebu/Kconfig" +source "drivers/clk/owl/Kconfig"

config ICS8N3QV01 bool "Enable ICS8N3QV01 VCXO driver" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 58139b13a8..078f8d7ae1 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_CLK_BCM6345) += clk_bcm6345.o obj-$(CONFIG_CLK_BOSTON) += clk_boston.o obj-$(CONFIG_CLK_EXYNOS) += exynos/ obj-$(CONFIG_CLK_HSDK) += clk-hsdk-cgu.o +obj-$(CONFIG_CLK_OWL) += owl/ obj-$(CONFIG_CLK_RENESAS) += renesas/ obj-$(CONFIG_CLK_STM32F) += clk_stm32f.o obj-$(CONFIG_CLK_STM32MP1) += clk_stm32mp1.o diff --git a/drivers/clk/owl/Kconfig b/drivers/clk/owl/Kconfig new file mode 100644 index 0000000000..661f1981b9 --- /dev/null +++ b/drivers/clk/owl/Kconfig @@ -0,0 +1,12 @@ +config CLK_OWL + bool "Actions Semi OWL clock drivers" + depends on CLK && ARCH_OWL + help + Enable support for clock managemet unit present in Actions Semi + OWL SoCs. + +config CLK_S900 + bool "Actions Semi S900 clock driver" + depends on CLK_OWL && ARM64 + help + Enable support for the clocks in Actions Semi S900 SoC. diff --git a/drivers/clk/owl/Makefile b/drivers/clk/owl/Makefile new file mode 100644 index 0000000000..b21f23002d --- /dev/null +++ b/drivers/clk/owl/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0+ + +obj-$(CONFIG_CLK_OWL) += clk_owl.o +obj-$(CONFIG_CLK_S900) += clk_s900.o diff --git a/drivers/clk/owl/clk_owl.c b/drivers/clk/owl/clk_owl.c new file mode 100644 index 0000000000..c289825dab --- /dev/null +++ b/drivers/clk/owl/clk_owl.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Actions Semi OWL SoCs Clock driver + * + * Copyright (C) 2015 Actions Semi Co., Ltd. + * Copyright (C) 2018 Manivannan Sadhasivam manivannan.sadhasivam@linaro.org + */ + +#include <common.h> +#include <clk-uclass.h> +#include <dm.h> +#include <errno.h> +#include <fdtdec.h> +#include <asm/arch-owl/clk_owl.h> +#include <asm/io.h> +#include <asm/types.h> + +static int owl_clk_probe(struct udevice *dev) +{ + struct owl_clk_priv *priv = dev_get_priv(dev); + + priv->base = dev_read_addr(dev); + if (priv->base == FDT_ADDR_T_NONE) + return -EINVAL; + + /* setup necessary clocks */ + owl_clk_init(priv); + + return 0; +} + +static int owl_clk_enable(struct clk *clk) +{ + return owl_periph_clk_enable(clk); +} + +static int owl_clk_disable(struct clk *clk) +{ + return owl_periph_clk_disable(clk); +} + +static struct clk_ops owl_clk_ops = { + .enable = owl_clk_enable, + .disable = owl_clk_disable, +}; + +static const struct udevice_id owl_clk_ids[] = { + { .compatible = "actions,s900-cmu" }, + { } +}; + +U_BOOT_DRIVER(clk_owl) = { + .name = "clk_owl", + .id = UCLASS_CLK, + .of_match = owl_clk_ids, + .ops = &owl_clk_ops, + .priv_auto_alloc_size = sizeof(struct owl_clk_priv), + .probe = owl_clk_probe, + .flags = DM_FLAG_PRE_RELOC, +}; diff --git a/drivers/clk/owl/clk_s900.c b/drivers/clk/owl/clk_s900.c new file mode 100644 index 0000000000..8fe225b0de --- /dev/null +++ b/drivers/clk/owl/clk_s900.c @@ -0,0 +1,104 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Actions Semi S900 clock driver + * + * Copyright (C) 2015 Actions Semi Co., Ltd. + * Copyright (C) 2018 Manivannan Sadhasivam manivannan.sadhasivam@linaro.org + */ + +#include <common.h> +#include <dm.h> +#include <asm/arch-owl/clk_owl.h> +#include <asm/arch-owl/regs_s900.h> +#include <asm/io.h> + +#include <dt-bindings/clock/s900_cmu.h> + +void owl_clk_init(struct owl_clk_priv *priv) +{ + u32 bus_clk = 0, core_pll, dev_pll; + + /* Enable ASSIST_PLL */ + setbits_le32(priv->base + CMU_ASSISTPLL, BIT(0)); + + udelay(PLL_STABILITY_WAIT_US); + + /* Source HOSC to DEV_CLK */ + clrbits_le32(priv->base + CMU_DEVPLL, CMU_DEVPLL_CLK); + + /* Configure BUS_CLK */ + bus_clk |= (CMU_PDBGDIV_DIV | CMU_PERDIV_DIV | CMU_NOCDIV_DIV | + CMU_DMMCLK_SRC | CMU_APBCLK_DIV | CMU_AHBCLK_DIV | + CMU_NOCCLK_SRC | CMU_CORECLK_HOSC); + writel(bus_clk, priv->base + CMU_BUSCLK); + + udelay(PLL_STABILITY_WAIT_US); + + /* Configure CORE_PLL */ + core_pll = readl(priv->base + CMU_COREPLL); + core_pll |= (CMU_COREPLL_EN | CMU_COREPLL_HOSC_EN | CMU_COREPLL_OUT); + writel(core_pll, priv->base + CMU_COREPLL); + + udelay(PLL_STABILITY_WAIT_US); + + /* Configure DEV_PLL */ + dev_pll = readl(priv->base + CMU_DEVPLL); + dev_pll |= (CMU_DEVPLL_EN | CMU_DEVPLL_OUT); + writel(dev_pll, priv->base + CMU_DEVPLL); + + udelay(PLL_STABILITY_WAIT_US); + + /* Source CORE_PLL for CORE_CLK */ + clrsetbits_le32(priv->base + CMU_BUSCLK, CMU_CORECLK_MASK, + CMU_CORECLK_CPLL); + + /* Source DEV_PLL for DEV_CLK */ + setbits_le32(priv->base + CMU_DEVPLL, CMU_DEVPLL_CLK); + + udelay(PLL_STABILITY_WAIT_US); +} + +void owl_uart_clk_enable(struct owl_clk_priv *priv) +{ + /* Source HOSC for UART5 interface */ + clrbits_le32(priv->base + CMU_UART5CLK, CMU_UARTCLK_SRC_DEVPLL); + + /* Enable UART5 interface clock */ + setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART5); +} + +void owl_uart_clk_disable(struct owl_clk_priv *priv) +{ + /* Disable UART5 interface clock */ + clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART5); +} + +int owl_periph_clk_enable(struct clk *clk) +{ + struct owl_clk_priv *priv = dev_get_priv(clk->dev); + + switch (clk->id) { + case CLOCK_UART5: + owl_uart_clk_enable(priv); + break; + default: + return 0; + } + + return 0; +} + +int owl_periph_clk_disable(struct clk *clk) +{ + struct owl_clk_priv *priv = dev_get_priv(clk->dev); + + switch (clk->id) { + case CLOCK_UART5: + owl_uart_clk_disable(priv); + break; + default: + return 0; + } + + return 0; +}

This commit enables UART5 found in S900 SoC for serial console support.

Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org --- arch/arm/dts/bubblegum_96.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+)

diff --git a/arch/arm/dts/bubblegum_96.dts b/arch/arm/dts/bubblegum_96.dts index 4e34ebaa49..5b58d15594 100644 --- a/arch/arm/dts/bubblegum_96.dts +++ b/arch/arm/dts/bubblegum_96.dts @@ -12,8 +12,20 @@ model = "Bubblegum-96"; compatible = "ucrobotics,bubblegum-96", "actions,s900";

+ aliases { + serial5 = &uart5; + }; + + chosen { + stdout-path = "serial5:115200n8"; + }; + memory@0 { device_type = "memory"; reg = <0x0 0x0 0x0 0x80000000>; }; }; + +&uart5 { + status = "okay"; +};

Add myself as the Maintainer for Actions Semi OWL family and its relevant board, drivers.

Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS index 642c448093..0f70cb04fe 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -145,6 +145,15 @@ T: git git://git.denx.de/u-boot-pxa.git F: arch/arm/cpu/pxa/ F: arch/arm/include/asm/arch-pxa/

+ARM OWL +M: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org +S: Maintained +F: arch/arm/include/asm/arch-owl/ +F: arch/arm/mach-owl/ +F: board/ucRobotics/ +F: drivers/clk/owl/ +F: drivers/serial/serial_owl.c + ARM RENESAS RMOBILE/R-CAR M: Nobuhiro Iwamatsu iwamatsu@nigauri.org M: Marek Vasut marek.vasut+renesas@gmail.com