Re: [PATCH v3 04/10] clk: sunxi-ng: add support for Allwinner H5 SoC

Maxime Ripard
2017-01-30T09:04:22Z

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On Sun, Jan 29, 2017 at 10:33:25AM +0800, Icenowy Zheng wrote:
> Allwinner H5 is a SoC that features a CCU like H3, but with MMC phase
> clocks removed (for new MMC controller) and a new bus gate/reset
> imported.
>
> Add support for it.
>
> Signed-off-by: Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org>
> ---
> See the comments of the previous patch.
>
> .../devicetree/bindings/clock/sunxi-ccu.txt | 1 +
> drivers/clk/sunxi-ng/Kconfig | 2 +-
> drivers/clk/sunxi-ng/ccu-sunxi-h3-h5.c | 137 +++++++++++++++++++++
> drivers/clk/sunxi-ng/ccu-sunxi-h3-h5.h | 5 +-
> include/dt-bindings/clock/sunxi-h3-h5-ccu.h | 3 +
> include/dt-bindings/reset/sunxi-h3-h5-ccu.h | 3 +
> 6 files changed, 149 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
> index f6032cf63f12..a33a4a5ecffa 100644
> --- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
> +++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
> @@ -9,6 +9,7 @@ Required properties :
> - "allwinner,sun8i-h3-ccu"
> - "allwinner,sun8i-v3s-ccu"
> - "allwinner,sun50i-a64-ccu"
> + - "allwinner,sun50i-h5-ccu"
>
> - reg: Must contain the registers base address and length
> - clocks: phandle to the oscillators feeding the CCU. Two are needed:
> diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig
> index 4be083ae717f..bdf18e846731 100644
> --- a/drivers/clk/sunxi-ng/Kconfig
> +++ b/drivers/clk/sunxi-ng/Kconfig
> @@ -117,7 +117,7 @@ config SUNXI_H3_H5_CCU
> select SUNXI_CCU_NM
> select SUNXI_CCU_MP
> select SUNXI_CCU_PHASE
> - default MACH_SUN8I
> + default MACH_SUN8I || (ARM64 && ARCH_SUNXI)
>
> config SUN8I_V3S_CCU
> bool "Support for the Allwinner V3s CCU"
> diff --git a/drivers/clk/sunxi-ng/ccu-sunxi-h3-h5.c b/drivers/clk/sunxi-ng/ccu-sunxi-h3-h5.c
> index be63b56315f5..b7b9f85f5c9f 100644
> --- a/drivers/clk/sunxi-ng/ccu-sunxi-h3-h5.c
> +++ b/drivers/clk/sunxi-ng/ccu-sunxi-h3-h5.c
> @@ -302,6 +302,8 @@ static SUNXI_CCU_GATE(bus_uart3_clk, "bus-uart3", "apb2",
> 0x06c, BIT(19), 0);
> static SUNXI_CCU_GATE(bus_scr0_clk, "bus-scr0", "apb2",
> 0x06c, BIT(20), 0);
> +static SUNXI_CCU_GATE(bus_scr1_clk, "bus-scr1", "apb2",
> + 0x06c, BIT(21), 0);
>
> static SUNXI_CCU_GATE(bus_ephy_clk, "bus-ephy", "ahb1",
> 0x070, BIT(0), 0);
> @@ -547,6 +549,7 @@ static struct ccu_common *sunxi_h3_h5_ccu_clks[] = {
> &bus_uart2_clk.common,
> &bus_uart3_clk.common,
> &bus_scr0_clk.common,
> + &bus_scr1_clk.common,
> &bus_ephy_clk.common,
> &bus_dbg_clk.common,
> &ths_clk.common,
> @@ -730,6 +733,122 @@ static struct clk_hw_onecell_data sun8i_h3_hw_clks = {
> .num = CLK_NUMBER,
> };
>
> +static struct clk_hw_onecell_data sun50i_h5_hw_clks = {
> + .hws = {
> + [CLK_PLL_CPUX] = &pll_cpux_clk.common.hw,
> + [CLK_PLL_AUDIO_BASE] = &pll_audio_base_clk.common.hw,
> + [CLK_PLL_AUDIO] = &pll_audio_clk.hw,
> + [CLK_PLL_AUDIO_2X] = &pll_audio_2x_clk.hw,
> + [CLK_PLL_AUDIO_4X] = &pll_audio_4x_clk.hw,
> + [CLK_PLL_AUDIO_8X] = &pll_audio_8x_clk.hw,
> + [CLK_PLL_VIDEO] = &pll_video_clk.common.hw,
> + [CLK_PLL_VE] = &pll_ve_clk.common.hw,
> + [CLK_PLL_DDR] = &pll_ddr_clk.common.hw,
> + [CLK_PLL_PERIPH0] = &pll_periph0_clk.common.hw,
> + [CLK_PLL_PERIPH0_2X] = &pll_periph0_2x_clk.hw,
> + [CLK_PLL_GPU] = &pll_gpu_clk.common.hw,
> + [CLK_PLL_PERIPH1] = &pll_periph1_clk.common.hw,
> + [CLK_PLL_DE] = &pll_de_clk.common.hw,
> + [CLK_CPUX] = &cpux_clk.common.hw,
> + [CLK_AXI] = &axi_clk.common.hw,
> + [CLK_AHB1] = &ahb1_clk.common.hw,
> + [CLK_APB1] = &apb1_clk.common.hw,
> + [CLK_APB2] = &apb2_clk.common.hw,
> + [CLK_AHB2] = &ahb2_clk.common.hw,
> + [CLK_BUS_CE] = &bus_ce_clk.common.hw,
> + [CLK_BUS_DMA] = &bus_dma_clk.common.hw,
> + [CLK_BUS_MMC0] = &bus_mmc0_clk.common.hw,
> + [CLK_BUS_MMC1] = &bus_mmc1_clk.common.hw,
> + [CLK_BUS_MMC2] = &bus_mmc2_clk.common.hw,
> + [CLK_BUS_NAND] = &bus_nand_clk.common.hw,
> + [CLK_BUS_DRAM] = &bus_dram_clk.common.hw,
> + [CLK_BUS_EMAC] = &bus_emac_clk.common.hw,
> + [CLK_BUS_TS] = &bus_ts_clk.common.hw,
> + [CLK_BUS_HSTIMER] = &bus_hstimer_clk.common.hw,
> + [CLK_BUS_SPI0] = &bus_spi0_clk.common.hw,
> + [CLK_BUS_SPI1] = &bus_spi1_clk.common.hw,
> + [CLK_BUS_OTG] = &bus_otg_clk.common.hw,
> + [CLK_BUS_EHCI0] = &bus_ehci0_clk.common.hw,
> + [CLK_BUS_EHCI1] = &bus_ehci1_clk.common.hw,
> + [CLK_BUS_EHCI2] = &bus_ehci2_clk.common.hw,
> + [CLK_BUS_EHCI3] = &bus_ehci3_clk.common.hw,
> + [CLK_BUS_OHCI0] = &bus_ohci0_clk.common.hw,
> + [CLK_BUS_OHCI1] = &bus_ohci1_clk.common.hw,
> + [CLK_BUS_OHCI2] = &bus_ohci2_clk.common.hw,
> + [CLK_BUS_OHCI3] = &bus_ohci3_clk.common.hw,
> + [CLK_BUS_VE] = &bus_ve_clk.common.hw,
> + [CLK_BUS_TCON0] = &bus_tcon0_clk.common.hw,
> + [CLK_BUS_TCON1] = &bus_tcon1_clk.common.hw,
> + [CLK_BUS_DEINTERLACE] = &bus_deinterlace_clk.common.hw,
> + [CLK_BUS_CSI] = &bus_csi_clk.common.hw,
> + [CLK_BUS_TVE] = &bus_tve_clk.common.hw,
> + [CLK_BUS_HDMI] = &bus_hdmi_clk.common.hw,
> + [CLK_BUS_DE] = &bus_de_clk.common.hw,
> + [CLK_BUS_GPU] = &bus_gpu_clk.common.hw,
> + [CLK_BUS_MSGBOX] = &bus_msgbox_clk.common.hw,
> + [CLK_BUS_SPINLOCK] = &bus_spinlock_clk.common.hw,
> + [CLK_BUS_CODEC] = &bus_codec_clk.common.hw,
> + [CLK_BUS_SPDIF] = &bus_spdif_clk.common.hw,
> + [CLK_BUS_PIO] = &bus_pio_clk.common.hw,
> + [CLK_BUS_THS] = &bus_ths_clk.common.hw,
> + [CLK_BUS_I2S0] = &bus_i2s0_clk.common.hw,
> + [CLK_BUS_I2S1] = &bus_i2s1_clk.common.hw,
> + [CLK_BUS_I2S2] = &bus_i2s2_clk.common.hw,
> + [CLK_BUS_I2C0] = &bus_i2c0_clk.common.hw,
> + [CLK_BUS_I2C1] = &bus_i2c1_clk.common.hw,
> + [CLK_BUS_I2C2] = &bus_i2c2_clk.common.hw,
> + [CLK_BUS_UART0] = &bus_uart0_clk.common.hw,
> + [CLK_BUS_UART1] = &bus_uart1_clk.common.hw,
> + [CLK_BUS_UART2] = &bus_uart2_clk.common.hw,
> + [CLK_BUS_UART3] = &bus_uart3_clk.common.hw,
> + [CLK_BUS_SCR0] = &bus_scr0_clk.common.hw,
> + [CLK_BUS_SCR1] = &bus_scr1_clk.common.hw,
> + [CLK_BUS_EPHY] = &bus_ephy_clk.common.hw,
> + [CLK_BUS_DBG] = &bus_dbg_clk.common.hw,
> + [CLK_THS] = &ths_clk.common.hw,
> + [CLK_NAND] = &nand_clk.common.hw,
> + [CLK_MMC0] = &mmc0_clk.common.hw,
> + [CLK_MMC1] = &mmc1_clk.common.hw,
> + [CLK_MMC2] = &mmc2_clk.common.hw,
> + [CLK_TS] = &ts_clk.common.hw,
> + [CLK_CE] = &ce_clk.common.hw,
> + [CLK_SPI0] = &spi0_clk.common.hw,
> + [CLK_SPI1] = &spi1_clk.common.hw,
> + [CLK_I2S0] = &i2s0_clk.common.hw,
> + [CLK_I2S1] = &i2s1_clk.common.hw,
> + [CLK_I2S2] = &i2s2_clk.common.hw,
> + [CLK_SPDIF] = &spdif_clk.common.hw,
> + [CLK_USB_PHY0] = &usb_phy0_clk.common.hw,
> + [CLK_USB_PHY1] = &usb_phy1_clk.common.hw,
> + [CLK_USB_PHY2] = &usb_phy2_clk.common.hw,
> + [CLK_USB_PHY3] = &usb_phy3_clk.common.hw,
> + [CLK_USB_OHCI0] = &usb_ohci0_clk.common.hw,
> + [CLK_USB_OHCI1] = &usb_ohci1_clk.common.hw,
> + [CLK_USB_OHCI2] = &usb_ohci2_clk.common.hw,
> + [CLK_USB_OHCI3] = &usb_ohci3_clk.common.hw,
> + [CLK_DRAM] = &dram_clk.common.hw,
> + [CLK_DRAM_VE] = &dram_ve_clk.common.hw,
> + [CLK_DRAM_CSI] = &dram_csi_clk.common.hw,
> + [CLK_DRAM_DEINTERLACE] = &dram_deinterlace_clk.common.hw,
> + [CLK_DRAM_TS] = &dram_ts_clk.common.hw,
> + [CLK_DE] = &de_clk.common.hw,
> + [CLK_TCON0] = &tcon_clk.common.hw,
> + [CLK_TVE] = &tve_clk.common.hw,
> + [CLK_DEINTERLACE] = &deinterlace_clk.common.hw,
> + [CLK_CSI_MISC] = &csi_misc_clk.common.hw,
> + [CLK_CSI_SCLK] = &csi_sclk_clk.common.hw,
> + [CLK_CSI_MCLK] = &csi_mclk_clk.common.hw,
> + [CLK_VE] = &ve_clk.common.hw,
> + [CLK_AC_DIG] = &ac_dig_clk.common.hw,
> + [CLK_AVS] = &avs_clk.common.hw,
> + [CLK_HDMI] = &hdmi_clk.common.hw,
> + [CLK_HDMI_DDC] = &hdmi_ddc_clk.common.hw,
> + [CLK_MBUS] = &mbus_clk.common.hw,
> + [CLK_GPU] = &gpu_clk.common.hw,
> + },
> + .num = CLK_NUMBER,
> +};
> +
> static struct ccu_reset_map sunxi_h3_h5_ccu_resets[] = {
> [RST_USB_PHY0] = { 0x0cc, BIT(0) },
> [RST_USB_PHY1] = { 0x0cc, BIT(1) },
> @@ -791,6 +910,7 @@ static struct ccu_reset_map sunxi_h3_h5_ccu_resets[] = {
> [RST_BUS_UART2] = { 0x2d8, BIT(18) },
> [RST_BUS_UART3] = { 0x2d8, BIT(19) },
> [RST_BUS_SCR0] = { 0x2d8, BIT(20) },
> + [RST_BUS_SCR1] = { 0x2d8, BIT(21) },

That reset line is not valid on the H3.

Thanks,
Maxime

--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering