| /* |
| * Copyright 2013-2014 Freescale Semiconductor, Inc. |
| * |
| * 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. |
| * |
| */ |
| |
| #include <linux/clk.h> |
| #include <linux/clkdev.h> |
| #include <linux/err.h> |
| #include <linux/of.h> |
| #include <linux/of_address.h> |
| #include <linux/of_irq.h> |
| #include <dt-bindings/clock/imx6sl-clock.h> |
| |
| #include "clk.h" |
| #include "common.h" |
| |
| #define CCSR 0xc |
| #define BM_CCSR_PLL1_SW_CLK_SEL (1 << 2) |
| #define CACRR 0x10 |
| #define CDHIPR 0x48 |
| #define BM_CDHIPR_ARM_PODF_BUSY (1 << 16) |
| #define ARM_WAIT_DIV_396M 2 |
| #define ARM_WAIT_DIV_792M 4 |
| #define ARM_WAIT_DIV_996M 6 |
| |
| #define PLL_ARM 0x0 |
| #define BM_PLL_ARM_DIV_SELECT (0x7f << 0) |
| #define BM_PLL_ARM_POWERDOWN (1 << 12) |
| #define BM_PLL_ARM_ENABLE (1 << 13) |
| #define BM_PLL_ARM_LOCK (1 << 31) |
| #define PLL_ARM_DIV_792M 66 |
| |
| 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_lcdif_sels[] = { "mmdc", "pll2_pfd2", "pll3_120m", "pll3_pfd1", }; |
| static const char *usdhc_sels[] = { "pll2_pfd2", "pll2_pfd0", }; |
| static const char *ssi_sels[] = { "pll3_pfd2", "pll3_pfd3", "pll4_audio_div", "dummy", }; |
| static const char *perclk_sels[] = { "ipg", "osc", }; |
| static const char *epdc_pxp_sels[] = { "mmdc", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd1", }; |
| 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 *audio_sels[] = { "pll4_audio_div", "pll3_pfd2", "pll3_pfd3", "pll3_usb_otg", }; |
| static const char *ecspi_sels[] = { "pll3_60m", "osc", }; |
| static const char *uart_sels[] = { "pll3_80m", "osc", }; |
| |
| 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 struct clk *clks[IMX6SL_CLK_END]; |
| static struct clk_onecell_data clk_data; |
| static void __iomem *ccm_base; |
| static void __iomem *anatop_base; |
| |
| static const u32 clks_init_on[] __initconst = { |
| IMX6SL_CLK_IPG, IMX6SL_CLK_ARM, IMX6SL_CLK_MMDC_ROOT, |
| }; |
| |
| /* |
| * ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken |
| * during WAIT mode entry process could cause cache memory |
| * corruption. |
| * |
| * Software workaround: |
| * To prevent this issue from occurring, software should ensure that the |
| * ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before |
| * entering WAIT mode. |
| * |
| * This function will set the ARM clk to max value within the 12:5 limit. |
| * As IPG clock is fixed at 66MHz(so ARM freq must not exceed 158.4MHz), |
| * ARM freq are one of below setpoints: 396MHz, 792MHz and 996MHz, since |
| * the clk APIs can NOT be called in idle thread(may cause kernel schedule |
| * as there is sleep function in PLL wait function), so here we just slow |
| * down ARM to below freq according to previous freq: |
| * |
| * run mode wait mode |
| * 396MHz -> 132MHz; |
| * 792MHz -> 158.4MHz; |
| * 996MHz -> 142.3MHz; |
| */ |
| static int imx6sl_get_arm_divider_for_wait(void) |
| { |
| if (readl_relaxed(ccm_base + CCSR) & BM_CCSR_PLL1_SW_CLK_SEL) { |
| return ARM_WAIT_DIV_396M; |
| } else { |
| if ((readl_relaxed(anatop_base + PLL_ARM) & |
| BM_PLL_ARM_DIV_SELECT) == PLL_ARM_DIV_792M) |
| return ARM_WAIT_DIV_792M; |
| else |
| return ARM_WAIT_DIV_996M; |
| } |
| } |
| |
| static void imx6sl_enable_pll_arm(bool enable) |
| { |
| static u32 saved_pll_arm; |
| u32 val; |
| |
| if (enable) { |
| saved_pll_arm = val = readl_relaxed(anatop_base + PLL_ARM); |
| val |= BM_PLL_ARM_ENABLE; |
| val &= ~BM_PLL_ARM_POWERDOWN; |
| writel_relaxed(val, anatop_base + PLL_ARM); |
| while (!(__raw_readl(anatop_base + PLL_ARM) & BM_PLL_ARM_LOCK)) |
| ; |
| } else { |
| writel_relaxed(saved_pll_arm, anatop_base + PLL_ARM); |
| } |
| } |
| |
| void imx6sl_set_wait_clk(bool enter) |
| { |
| static unsigned long saved_arm_div; |
| int arm_div_for_wait = imx6sl_get_arm_divider_for_wait(); |
| |
| /* |
| * According to hardware design, arm podf change need |
| * PLL1 clock enabled. |
| */ |
| if (arm_div_for_wait == ARM_WAIT_DIV_396M) |
| imx6sl_enable_pll_arm(true); |
| |
| if (enter) { |
| saved_arm_div = readl_relaxed(ccm_base + CACRR); |
| writel_relaxed(arm_div_for_wait, ccm_base + CACRR); |
| } else { |
| writel_relaxed(saved_arm_div, ccm_base + CACRR); |
| } |
| while (__raw_readl(ccm_base + CDHIPR) & BM_CDHIPR_ARM_PODF_BUSY) |
| ; |
| |
| if (arm_div_for_wait == ARM_WAIT_DIV_396M) |
| imx6sl_enable_pll_arm(false); |
| } |
| |
| static void __init imx6sl_clocks_init(struct device_node *ccm_node) |
| { |
| struct device_node *np; |
| void __iomem *base; |
| int i; |
| int ret; |
| |
| clks[IMX6SL_CLK_DUMMY] = imx_clk_fixed("dummy", 0); |
| clks[IMX6SL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0); |
| clks[IMX6SL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0); |
| |
| np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-anatop"); |
| base = of_iomap(np, 0); |
| WARN_ON(!base); |
| anatop_base = base; |
| |
| /* type name parent base div_mask */ |
| clks[IMX6SL_CLK_PLL1_SYS] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1_sys", "osc", base, 0x7f); |
| clks[IMX6SL_CLK_PLL2_BUS] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2_bus", "osc", base + 0x30, 0x1); |
| clks[IMX6SL_CLK_PLL3_USB_OTG] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3_usb_otg", "osc", base + 0x10, 0x3); |
| clks[IMX6SL_CLK_PLL4_AUDIO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4_audio", "osc", base + 0x70, 0x7f); |
| clks[IMX6SL_CLK_PLL5_VIDEO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5_video", "osc", base + 0xa0, 0x7f); |
| clks[IMX6SL_CLK_PLL6_ENET] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6_enet", "osc", base + 0xe0, 0x3); |
| clks[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7_usb_host", "osc", base + 0x20, 0x3); |
| |
| /* |
| * 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] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); |
| clks[IMX6SL_CLK_PLL4_AUDIO_DIV] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock); |
| clks[IMX6SL_CLK_PLL5_POST_DIV] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); |
| clks[IMX6SL_CLK_PLL5_VIDEO_DIV] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock); |
| clks[IMX6SL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, base + 0xe0, 0, 2, 0, clk_enet_ref_table, &imx_ccm_lock); |
| |
| /* 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); |
| |
| np = ccm_node; |
| base = of_iomap(np, 0); |
| WARN_ON(!base); |
| ccm_base = base; |
| |
| /* Reuse imx6q pm code */ |
| imx6q_pm_set_ccm_base(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_lcdif_sels, ARRAY_SIZE(csi_lcdif_sels)); |
| clks[IMX6SL_CLK_LCDIF_AXI_SEL] = imx_clk_mux("lcdif_axi_sel", base + 0x3c, 14, 2, csi_lcdif_sels, ARRAY_SIZE(csi_lcdif_sels)); |
| clks[IMX6SL_CLK_USDHC1_SEL] = imx_clk_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_USDHC2_SEL] = imx_clk_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_USDHC3_SEL] = imx_clk_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_USDHC4_SEL] = imx_clk_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_SSI1_SEL] = imx_clk_fixup_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_SSI2_SEL] = imx_clk_fixup_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_SSI3_SEL] = imx_clk_fixup_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_PERCLK_SEL] = imx_clk_fixup_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels), imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_PXP_AXI_SEL] = imx_clk_mux("pxp_axi_sel", base + 0x34, 6, 3, epdc_pxp_sels, ARRAY_SIZE(epdc_pxp_sels)); |
| clks[IMX6SL_CLK_EPDC_AXI_SEL] = imx_clk_mux("epdc_axi_sel", base + 0x34, 15, 3, epdc_pxp_sels, ARRAY_SIZE(epdc_pxp_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_SPDIF0_SEL] = imx_clk_mux("spdif0_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); |
| clks[IMX6SL_CLK_SPDIF1_SEL] = imx_clk_mux("spdif1_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); |
| clks[IMX6SL_CLK_EXTERN_AUDIO_SEL] = imx_clk_mux("extern_audio_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_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_SSI1_PRED] = imx_clk_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3); |
| clks[IMX6SL_CLK_SSI1_PODF] = imx_clk_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6); |
| clks[IMX6SL_CLK_SSI2_PRED] = imx_clk_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3); |
| clks[IMX6SL_CLK_SSI2_PODF] = imx_clk_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6); |
| clks[IMX6SL_CLK_SSI3_PRED] = imx_clk_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3); |
| clks[IMX6SL_CLK_SSI3_PODF] = imx_clk_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6); |
| clks[IMX6SL_CLK_PERCLK] = imx_clk_fixup_divider("perclk", "perclk_sel", base + 0x1c, 0, 6, imx_cscmr1_fixup); |
| 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_fixup_divider("lcdif_pix_podf", "lcdif_pix_pred", base + 0x1c, 20, 3, imx_cscmr1_fixup); |
| clks[IMX6SL_CLK_EPDC_PIX_PODF] = imx_clk_divider("epdc_pix_podf", "epdc_pix_pred", base + 0x18, 23, 3); |
| clks[IMX6SL_CLK_SPDIF0_PRED] = imx_clk_divider("spdif0_pred", "spdif0_sel", base + 0x30, 25, 3); |
| clks[IMX6SL_CLK_SPDIF0_PODF] = imx_clk_divider("spdif0_podf", "spdif0_pred", base + 0x30, 22, 3); |
| clks[IMX6SL_CLK_SPDIF1_PRED] = imx_clk_divider("spdif1_pred", "spdif1_sel", base + 0x30, 12, 3); |
| clks[IMX6SL_CLK_SPDIF1_PODF] = imx_clk_divider("spdif1_podf", "spdif1_pred", base + 0x30, 9, 3); |
| clks[IMX6SL_CLK_EXTERN_AUDIO_PRED] = imx_clk_divider("extern_audio_pred", "extern_audio_sel", base + 0x28, 9, 3); |
| clks[IMX6SL_CLK_EXTERN_AUDIO_PODF] = imx_clk_divider("extern_audio_podf", "extern_audio_pred", base + 0x28, 25, 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_EXTERN_AUDIO] = imx_clk_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16); |
| 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_SPDIF] = imx_clk_gate2("spdif", "spdif0_podf", base + 0x7c, 14); |
| clks[IMX6SL_CLK_SSI1] = imx_clk_gate2("ssi1", "ssi1_podf", base + 0x7c, 18); |
| clks[IMX6SL_CLK_SSI2] = imx_clk_gate2("ssi2", "ssi2_podf", base + 0x7c, 20); |
| clks[IMX6SL_CLK_SSI3] = imx_clk_gate2("ssi3", "ssi3_podf", base + 0x7c, 22); |
| 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); |
| |
| for (i = 0; i < ARRAY_SIZE(clks); i++) |
| if (IS_ERR(clks[i])) |
| pr_err("i.MX6SL clk %d: register failed with %ld\n", |
| i, PTR_ERR(clks[i])); |
| |
| clk_data.clks = clks; |
| clk_data.clk_num = ARRAY_SIZE(clks); |
| of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); |
| |
| clk_register_clkdev(clks[IMX6SL_CLK_GPT], "ipg", "imx-gpt.0"); |
| clk_register_clkdev(clks[IMX6SL_CLK_GPT_SERIAL], "per", "imx-gpt.0"); |
| |
| /* Ensure the AHB clk is at 132MHz. */ |
| ret = clk_set_rate(clks[IMX6SL_CLK_AHB], 132000000); |
| if (ret) |
| pr_warn("%s: failed to set AHB clock rate %d!\n", |
| __func__, ret); |
| |
| /* |
| * Make sure those always on clocks are enabled to maintain the correct |
| * usecount and enabling/disabling of parent PLLs. |
| */ |
| for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) |
| clk_prepare_enable(clks[clks_init_on[i]]); |
| |
| if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { |
| clk_prepare_enable(clks[IMX6SL_CLK_USBPHY1_GATE]); |
| clk_prepare_enable(clks[IMX6SL_CLK_USBPHY2_GATE]); |
| } |
| |
| /* Audio-related clocks configuration */ |
| clk_set_parent(clks[IMX6SL_CLK_SPDIF0_SEL], clks[IMX6SL_CLK_PLL3_PFD3]); |
| |
| /* Set initial power mode */ |
| imx6q_set_lpm(WAIT_CLOCKED); |
| |
| np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-gpt"); |
| mxc_timer_init_dt(np); |
| } |
| CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init); |
