From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from vs81.iboxed.net ([185.82.85.146]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cYKnZ-0002Fe-3g for barebox@lists.infradead.org; Mon, 30 Jan 2017 22:51:51 +0000 From: Alexander Kurz Date: Mon, 30 Jan 2017 23:50:57 +0100 Message-Id: <1485816659-26091-3-git-send-email-akurz@blala.de> In-Reply-To: <1485816659-26091-1-git-send-email-akurz@blala.de> References: <1485816659-26091-1-git-send-email-akurz@blala.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 3/5] ARM: i.MX6SL: import clock infrastructure from linux To: barebox@lists.infradead.org Cc: Alexander Kurz Import i.MX6SL clock infrastructure from linux clk-imx6sl.c To save space, clocks beeing unlikely usefull for bootloader purposes (SSI, SPDIF, EXTERN_AUDIO) were not imported. Further, the fixup code from linux mainline commits a49e6c4b8204 ("ARM: imx: add common clock support for fixup mux") cbe7fc8aaeef ("ARM: imx: add common clock support for fixup div") was ignored for this commit. Signed-off-by: Alexander Kurz --- drivers/clk/imx/clk-imx6sl.c | 329 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 329 insertions(+) create mode 100644 drivers/clk/imx/clk-imx6sl.c diff --git a/drivers/clk/imx/clk-imx6sl.c b/drivers/clk/imx/clk-imx6sl.c new file mode 100644 index 0000000..89ede76 --- /dev/null +++ b/drivers/clk/imx/clk-imx6sl.c @@ -0,0 +1,329 @@ +/* + * Copyright (C) 2014 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "clk.h" +#include "common.h" + +static const char *step_sels[] = { "osc", "pll2_pfd2", }; +static const char *pll1_sw_sels[] = { "pll1_sys", "step", }; +static const char *ocram_alt_sels[] = { "pll2_pfd2", "pll3_pfd1", }; +static const char *ocram_sels[] = { "periph", "ocram_alt_sels", }; +static const char *pre_periph_sels[] = { "pll2_bus", "pll2_pfd2", "pll2_pfd0", "pll2_198m", }; +static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", }; +static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", }; +static const char *periph_sels[] = { "pre_periph_sel", "periph_clk2_podf", }; +static const char *periph2_sels[] = { "pre_periph2_sel", "periph2_clk2_podf", }; +static const char *csi_sels[] = { "osc", "pll2_pfd2", "pll3_120m", "pll3_pfd1", }; +static const char *lcdif_axi_sels[] = { "pll2_bus", "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", }; +static const char *usdhc_sels[] = { "pll2_pfd2", "pll2_pfd0", }; +static const char *perclk_sels[] = { "ipg", "osc", }; +static const char *pxp_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd3", }; +static const char *epdc_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd2", }; +static const char *gpu2d_ovg_sels[] = { "pll3_pfd1", "pll3_usb_otg", "pll2_bus", "pll2_pfd2", }; +static const char *gpu2d_sels[] = { "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", "pll2_bus", }; +static const char *lcdif_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll3_pfd0", "pll3_pfd1", }; +static const char *epdc_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd1", "pll3_pfd1", }; +static const char *ecspi_sels[] = { "pll3_60m", "osc", }; +static const char *uart_sels[] = { "pll3_80m", "osc", }; +static const char *lvds_sels[] = { + "pll1_sys", "pll2_bus", "pll2_pfd0", "pll2_pfd1", "pll2_pfd2", "dummy", "pll4_audio", "pll5_video", + "dummy", "enet_ref", "dummy", "dummy", "pll3_usb_otg", "pll7_usb_host", "pll3_pfd0", "pll3_pfd1", + "pll3_pfd2", "pll3_pfd3", "osc", "dummy", "dummy", "dummy", "dummy", "dummy", + "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", +}; +static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", }; +static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; +static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; +static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; +static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", }; +static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", }; +static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", }; +static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; + +static struct clk *clks[IMX6SL_CLK_END]; +static struct clk_onecell_data clk_data; + +static struct clk_div_table clk_enet_ref_table[] = { + { .val = 0, .div = 20, }, + { .val = 1, .div = 10, }, + { .val = 2, .div = 5, }, + { .val = 3, .div = 4, }, + { } +}; + +static struct clk_div_table post_div_table[] = { + { .val = 2, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 0, .div = 4, }, + { } +}; + +static struct clk_div_table video_div_table[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 2, .div = 1, }, + { .val = 3, .div = 4, }, + { } +}; + +static int imx6sl_ccm_probe(struct device_d *dev) +{ + struct resource *iores; + void __iomem *base, *anatop_base, *ccm_base; + struct device_node *ccm_node = dev->device_node; + + clks[IMX6SL_CLK_DUMMY] = clk_fixed("dummy", 0); + + anatop_base = (void *)MX6_ANATOP_BASE_ADDR; + iores = dev_request_mem_resource(dev, 0); + if (IS_ERR(iores)) + return PTR_ERR(iores); + ccm_base = IOMEM(iores->start); + + base = anatop_base; + + clks[IMX6SL_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL2_BYPASS_SRC] = imx_clk_mux("pll2_bypass_src", base + 0x30, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL3_BYPASS_SRC] = imx_clk_mux("pll3_bypass_src", base + 0x10, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL4_BYPASS_SRC] = imx_clk_mux("pll4_bypass_src", base + 0x70, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL5_BYPASS_SRC] = imx_clk_mux("pll5_bypass_src", base + 0xa0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", base + 0xe0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", base + 0x20, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + + /* type name parent_name base div_mask */ + clks[IMX6SL_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1", "osc", base + 0x00, 0x7f); + clks[IMX6SL_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "osc", base + 0x30, 0x1); + clks[IMX6SL_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3", "osc", base + 0x10, 0x3); + clks[IMX6SL_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "osc", base + 0x70, 0x7f); + clks[IMX6SL_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5", "osc", base + 0xa0, 0x7f); + clks[IMX6SL_CLK_PLL6] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6", "osc", base + 0xe0, 0x3); + clks[IMX6SL_CLK_PLL7] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7", "osc", base + 0x20, 0x3); + + clks[IMX6SL_PLL1_BYPASS] = imx_clk_mux_p("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels)); + clks[IMX6SL_PLL2_BYPASS] = imx_clk_mux_p("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels)); + clks[IMX6SL_PLL3_BYPASS] = imx_clk_mux_p("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels)); + clks[IMX6SL_PLL4_BYPASS] = imx_clk_mux_p("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels)); + clks[IMX6SL_PLL5_BYPASS] = imx_clk_mux_p("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels)); + clks[IMX6SL_PLL6_BYPASS] = imx_clk_mux_p("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels)); + clks[IMX6SL_PLL7_BYPASS] = imx_clk_mux_p("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels)); + + /* Do not bypass PLLs initially */ + clk_set_parent(clks[IMX6SL_PLL1_BYPASS], clks[IMX6SL_CLK_PLL1]); + clk_set_parent(clks[IMX6SL_PLL2_BYPASS], clks[IMX6SL_CLK_PLL2]); + clk_set_parent(clks[IMX6SL_PLL3_BYPASS], clks[IMX6SL_CLK_PLL3]); + clk_set_parent(clks[IMX6SL_PLL4_BYPASS], clks[IMX6SL_CLK_PLL4]); + clk_set_parent(clks[IMX6SL_PLL5_BYPASS], clks[IMX6SL_CLK_PLL5]); + clk_set_parent(clks[IMX6SL_PLL6_BYPASS], clks[IMX6SL_CLK_PLL6]); + clk_set_parent(clks[IMX6SL_PLL7_BYPASS], clks[IMX6SL_CLK_PLL7]); + + clks[IMX6SL_CLK_PLL1_SYS] = imx_clk_gate("pll1_sys", "pll1_bypass", base + 0x00, 13); + clks[IMX6SL_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); + clks[IMX6SL_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); + clks[IMX6SL_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); + clks[IMX6SL_CLK_PLL5_VIDEO] = imx_clk_gate("pll5_video", "pll5_bypass", base + 0xa0, 13); + clks[IMX6SL_CLK_PLL6_ENET] = imx_clk_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13); + clks[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13); + + clks[IMX6SL_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + clks[IMX6SL_CLK_LVDS1_OUT] = imx_clk_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x160, 10, BIT(12)); + clks[IMX6SL_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", base + 0x160, 12, BIT(10)); + + /* + * usbphy1 and usbphy2 are implemented as dummy gates using reserve + * bit 20. They are used by phy driver to keep the refcount of + * parent PLL correct. usbphy1_gate and usbphy2_gate only needs to be + * turned on during boot, and software will not need to control it + * anymore after that. + */ + clks[IMX6SL_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20); + clks[IMX6SL_CLK_USBPHY2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20); + clks[IMX6SL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6); + clks[IMX6SL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6); + + /* dev name parent_name flags reg shift width div: flags, div_table lock */ + clks[IMX6SL_CLK_PLL4_POST_DIV] = imx_clk_divider_table("pll4_post_div", "pll4_audio", + base + 0x70, 19, 2, post_div_table); + clks[IMX6SL_CLK_PLL4_AUDIO_DIV] = imx_clk_divider("pll4_audio_div", "pll4_post_div", + base + 0x170, 15, 1); + clks[IMX6SL_CLK_PLL5_POST_DIV] = imx_clk_divider_table("pll5_post_div", "pll5_video", + base + 0xa0, 19, 2, post_div_table); + clks[IMX6SL_CLK_PLL5_VIDEO_DIV] = imx_clk_divider_table("pll5_video_div", "pll5_post_div", + base + 0x170, 30, 2, video_div_table); + clks[IMX6SL_CLK_ENET_REF] = imx_clk_divider_table("enet_ref", "pll6_enet", + base + 0xe0, 0, 2, clk_enet_ref_table); + + /* name parent_name reg idx */ + clks[IMX6SL_CLK_PLL2_PFD0] = imx_clk_pfd("pll2_pfd0", "pll2_bus", base + 0x100, 0); + clks[IMX6SL_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1", "pll2_bus", base + 0x100, 1); + clks[IMX6SL_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2", "pll2_bus", base + 0x100, 2); + clks[IMX6SL_CLK_PLL3_PFD0] = imx_clk_pfd("pll3_pfd0", "pll3_usb_otg", base + 0xf0, 0); + clks[IMX6SL_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1", "pll3_usb_otg", base + 0xf0, 1); + clks[IMX6SL_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2", "pll3_usb_otg", base + 0xf0, 2); + clks[IMX6SL_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3", "pll3_usb_otg", base + 0xf0, 3); + + /* name parent_name mult div */ + clks[IMX6SL_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2", 1, 2); + clks[IMX6SL_CLK_PLL3_120M] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4); + clks[IMX6SL_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6); + clks[IMX6SL_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); + + base = ccm_base; + + /* name reg shift width parent_names num_parents */ + clks[IMX6SL_CLK_STEP] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels)); + clks[IMX6SL_CLK_PLL1_SW] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); + clks[IMX6SL_CLK_OCRAM_ALT_SEL] = imx_clk_mux("ocram_alt_sel", base + 0x14, 7, 1, ocram_alt_sels, ARRAY_SIZE(ocram_alt_sels)); + clks[IMX6SL_CLK_OCRAM_SEL] = imx_clk_mux("ocram_sel", base + 0x14, 6, 1, ocram_sels, ARRAY_SIZE(ocram_sels)); + clks[IMX6SL_CLK_PRE_PERIPH2_SEL] = imx_clk_mux("pre_periph2_sel", base + 0x18, 21, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); + clks[IMX6SL_CLK_PRE_PERIPH_SEL] = imx_clk_mux("pre_periph_sel", base + 0x18, 18, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); + clks[IMX6SL_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); + clks[IMX6SL_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); + clks[IMX6SL_CLK_CSI_SEL] = imx_clk_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels)); + clks[IMX6SL_CLK_LCDIF_AXI_SEL] = imx_clk_mux("lcdif_axi_sel", base + 0x3c, 14, 2, lcdif_axi_sels, ARRAY_SIZE(lcdif_axi_sels)); + clks[IMX6SL_CLK_USDHC1_SEL] = imx_clk_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SL_CLK_USDHC2_SEL] = imx_clk_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SL_CLK_USDHC3_SEL] = imx_clk_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SL_CLK_USDHC4_SEL] = imx_clk_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SL_CLK_PERCLK_SEL] = imx_clk_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels)); + clks[IMX6SL_CLK_PXP_AXI_SEL] = imx_clk_mux("pxp_axi_sel", base + 0x34, 6, 3, pxp_axi_sels, ARRAY_SIZE(pxp_axi_sels)); + clks[IMX6SL_CLK_EPDC_AXI_SEL] = imx_clk_mux("epdc_axi_sel", base + 0x34, 15, 3, epdc_axi_sels, ARRAY_SIZE(epdc_axi_sels)); + clks[IMX6SL_CLK_GPU2D_OVG_SEL] = imx_clk_mux("gpu2d_ovg_sel", base + 0x18, 4, 2, gpu2d_ovg_sels, ARRAY_SIZE(gpu2d_ovg_sels)); + clks[IMX6SL_CLK_GPU2D_SEL] = imx_clk_mux("gpu2d_sel", base + 0x18, 8, 2, gpu2d_sels, ARRAY_SIZE(gpu2d_sels)); + clks[IMX6SL_CLK_LCDIF_PIX_SEL] = imx_clk_mux("lcdif_pix_sel", base + 0x38, 6, 3, lcdif_pix_sels, ARRAY_SIZE(lcdif_pix_sels)); + clks[IMX6SL_CLK_EPDC_PIX_SEL] = imx_clk_mux("epdc_pix_sel", base + 0x38, 15, 3, epdc_pix_sels, ARRAY_SIZE(epdc_pix_sels)); + clks[IMX6SL_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels)); + clks[IMX6SL_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); + + /* name reg shift width busy: reg, shift parent_names num_parents */ + clks[IMX6SL_CLK_PERIPH] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels)); + clks[IMX6SL_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels)); + + /* name parent_name reg shift width */ + clks[IMX6SL_CLK_OCRAM_PODF] = imx_clk_divider("ocram_podf", "ocram_sel", base + 0x14, 16, 3); + clks[IMX6SL_CLK_PERIPH_CLK2_PODF] = imx_clk_divider("periph_clk2_podf", "periph_clk2_sel", base + 0x14, 27, 3); + clks[IMX6SL_CLK_PERIPH2_CLK2_PODF] = imx_clk_divider("periph2_clk2_podf", "periph2_clk2_sel", base + 0x14, 0, 3); + clks[IMX6SL_CLK_IPG] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2); + clks[IMX6SL_CLK_CSI_PODF] = imx_clk_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3); + clks[IMX6SL_CLK_LCDIF_AXI_PODF] = imx_clk_divider("lcdif_axi_podf", "lcdif_axi_sel", base + 0x3c, 16, 3); + clks[IMX6SL_CLK_USDHC1_PODF] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3); + clks[IMX6SL_CLK_USDHC2_PODF] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3); + clks[IMX6SL_CLK_USDHC3_PODF] = imx_clk_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3); + clks[IMX6SL_CLK_USDHC4_PODF] = imx_clk_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3); + clks[IMX6SL_CLK_PERCLK] = imx_clk_divider("perclk", "perclk_sel", base + 0x1c, 0, 6); + clks[IMX6SL_CLK_PXP_AXI_PODF] = imx_clk_divider("pxp_axi_podf", "pxp_axi_sel", base + 0x34, 3, 3); + clks[IMX6SL_CLK_EPDC_AXI_PODF] = imx_clk_divider("epdc_axi_podf", "epdc_axi_sel", base + 0x34, 12, 3); + clks[IMX6SL_CLK_GPU2D_OVG_PODF] = imx_clk_divider("gpu2d_ovg_podf", "gpu2d_ovg_sel", base + 0x18, 26, 3); + clks[IMX6SL_CLK_GPU2D_PODF] = imx_clk_divider("gpu2d_podf", "gpu2d_sel", base + 0x18, 29, 3); + clks[IMX6SL_CLK_LCDIF_PIX_PRED] = imx_clk_divider("lcdif_pix_pred", "lcdif_pix_sel", base + 0x38, 3, 3); + clks[IMX6SL_CLK_EPDC_PIX_PRED] = imx_clk_divider("epdc_pix_pred", "epdc_pix_sel", base + 0x38, 12, 3); + clks[IMX6SL_CLK_LCDIF_PIX_PODF] = imx_clk_divider("lcdif_pix_podf", "lcdif_pix_pred", base + 0x1c, 20, 3); + clks[IMX6SL_CLK_EPDC_PIX_PODF] = imx_clk_divider("epdc_pix_podf", "epdc_pix_pred", base + 0x18, 23, 3); + clks[IMX6SL_CLK_ECSPI_ROOT] = imx_clk_divider("ecspi_root", "ecspi_sel", base + 0x38, 19, 6); + clks[IMX6SL_CLK_UART_ROOT] = imx_clk_divider("uart_root", "uart_sel", base + 0x24, 0, 6); + + /* name parent_name reg shift width busy: reg, shift */ + clks[IMX6SL_CLK_AHB] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1); + clks[IMX6SL_CLK_MMDC_ROOT] = imx_clk_busy_divider("mmdc", "periph2", base + 0x14, 3, 3, base + 0x48, 2); + clks[IMX6SL_CLK_ARM] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16); + + /* name parent_name reg shift */ + clks[IMX6SL_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_root", base + 0x6c, 0); + clks[IMX6SL_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_root", base + 0x6c, 2); + clks[IMX6SL_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_root", base + 0x6c, 4); + clks[IMX6SL_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_root", base + 0x6c, 6); + clks[IMX6SL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x6c, 10); + clks[IMX6SL_CLK_EPIT1] = imx_clk_gate2("epit1", "perclk", base + 0x6c, 12); + clks[IMX6SL_CLK_EPIT2] = imx_clk_gate2("epit2", "perclk", base + 0x6c, 14); + clks[IMX6SL_CLK_GPT] = imx_clk_gate2("gpt", "perclk", base + 0x6c, 20); + clks[IMX6SL_CLK_GPT_SERIAL] = imx_clk_gate2("gpt_serial", "perclk", base + 0x6c, 22); + clks[IMX6SL_CLK_GPU2D_OVG] = imx_clk_gate2("gpu2d_ovg", "gpu2d_ovg_podf", base + 0x6c, 26); + clks[IMX6SL_CLK_I2C1] = imx_clk_gate2("i2c1", "perclk", base + 0x70, 6); + clks[IMX6SL_CLK_I2C2] = imx_clk_gate2("i2c2", "perclk", base + 0x70, 8); + clks[IMX6SL_CLK_I2C3] = imx_clk_gate2("i2c3", "perclk", base + 0x70, 10); + clks[IMX6SL_CLK_OCOTP] = imx_clk_gate2("ocotp", "ipg", base + 0x70, 12); + clks[IMX6SL_CLK_CSI] = imx_clk_gate2("csi", "csi_podf", base + 0x74, 0); + clks[IMX6SL_CLK_PXP_AXI] = imx_clk_gate2("pxp_axi", "pxp_axi_podf", base + 0x74, 2); + clks[IMX6SL_CLK_EPDC_AXI] = imx_clk_gate2("epdc_axi", "epdc_axi_podf", base + 0x74, 4); + clks[IMX6SL_CLK_LCDIF_AXI] = imx_clk_gate2("lcdif_axi", "lcdif_axi_podf", base + 0x74, 6); + clks[IMX6SL_CLK_LCDIF_PIX] = imx_clk_gate2("lcdif_pix", "lcdif_pix_podf", base + 0x74, 8); + clks[IMX6SL_CLK_EPDC_PIX] = imx_clk_gate2("epdc_pix", "epdc_pix_podf", base + 0x74, 10); + clks[IMX6SL_CLK_OCRAM] = imx_clk_gate2("ocram", "ocram_podf", base + 0x74, 28); + clks[IMX6SL_CLK_PWM1] = imx_clk_gate2("pwm1", "perclk", base + 0x78, 16); + clks[IMX6SL_CLK_PWM2] = imx_clk_gate2("pwm2", "perclk", base + 0x78, 18); + clks[IMX6SL_CLK_PWM3] = imx_clk_gate2("pwm3", "perclk", base + 0x78, 20); + clks[IMX6SL_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22); + clks[IMX6SL_CLK_SDMA] = imx_clk_gate2("sdma", "ipg", base + 0x7c, 6); + clks[IMX6SL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12); + clks[IMX6SL_CLK_UART] = imx_clk_gate2("uart", "ipg", base + 0x7c, 24); + clks[IMX6SL_CLK_UART_SERIAL] = imx_clk_gate2("uart_serial", "uart_root", base + 0x7c, 26); + clks[IMX6SL_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0); + clks[IMX6SL_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2); + clks[IMX6SL_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); + clks[IMX6SL_CLK_USDHC3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); + clks[IMX6SL_CLK_USDHC4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); + + clk_data.clks = clks; + clk_data.clk_num = ARRAY_SIZE(clks); + of_clk_add_provider(ccm_node, of_clk_src_onecell_get, &clk_data); + + if (IS_ENABLED(CONFIG_USB_IMX_PHY)) { + clk_enable(clks[IMX6SL_CLK_USBPHY1_GATE]); + clk_enable(clks[IMX6SL_CLK_USBPHY2_GATE]); + } + + return 0; +}; + +static int imx6sl_clocks_init(void) +{ + if (!of_machine_is_compatible("fsl,imx6sl")) + return 0; + + /* Ensure the AHB clk is at 132MHz. */ + clk_set_rate(clks[IMX6SL_CLK_AHB], 132000000); + + return 0; +} +coredevice_initcall(imx6sl_clocks_init); + +static __maybe_unused struct of_device_id imx6sl_ccm_dt_ids[] = { + { + .compatible = "fsl,imx6sl-ccm", + }, { + /* sentinel */ + } +}; + +static struct driver_d imx6sl_ccm_driver = { + .probe = imx6sl_ccm_probe, + .name = "imx6-ccm", + .of_compatible = DRV_OF_COMPAT(imx6sl_ccm_dt_ids), +}; + +static int imx6sl_ccm_init(void) +{ + return platform_driver_register(&imx6sl_ccm_driver); +} +core_initcall(imx6sl_ccm_init); -- 2.1.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox