diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/clk/imx/clk-imx6sl.c | 445 |
1 files changed, 445 insertions, 0 deletions
diff --git a/drivers/clk/imx/clk-imx6sl.c b/drivers/clk/imx/clk-imx6sl.c new file mode 100644 index 000000000..277365970 --- /dev/null +++ b/drivers/clk/imx/clk-imx6sl.c @@ -0,0 +1,445 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2013-2014 Freescale Semiconductor, Inc. + */ + +#include <linux/bits.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/clk/imx.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" + +#define CCSR 0xc +#define BM_CCSR_PLL1_SW_CLK_SEL BIT(2) +#define CACRR 0x10 +#define CDHIPR 0x48 +#define BM_CDHIPR_ARM_PODF_BUSY BIT(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 +#define BM_PLL_ARM_POWERDOWN BIT(12) +#define BM_PLL_ARM_ENABLE BIT(13) +#define BM_PLL_ARM_LOCK BIT(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_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 *ssi_sels[] = { "pll3_pfd2", "pll3_pfd3", "pll4_audio_div", "dummy", }; +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 *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 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 const 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 const struct clk_div_table post_div_table[] = { + { .val = 2, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 0, .div = 4, }, + { } +}; + +static const struct clk_div_table video_div_table[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 2, .div = 1, }, + { .val = 3, .div = 4, }, + { } +}; + +static unsigned int share_count_ssi1; +static unsigned int share_count_ssi2; +static unsigned int share_count_ssi3; +static unsigned int share_count_spdif; + +static struct clk_hw **hws; +static struct clk_hw_onecell_data *clk_hw_data; +static void __iomem *ccm_base; +static void __iomem *anatop_base; + +/* + * 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 (!(readl_relaxed(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 ret; + + clk_hw_data = kzalloc(struct_size(clk_hw_data, hws, + IMX6SL_CLK_END), GFP_KERNEL); + if (WARN_ON(!clk_hw_data)) + return; + + clk_hw_data->num = IMX6SL_CLK_END; + hws = clk_hw_data->hws; + + hws[IMX6SL_CLK_DUMMY] = imx_clk_hw_fixed("dummy", 0); + hws[IMX6SL_CLK_CKIL] = imx_obtain_fixed_clock_hw("ckil", 0); + hws[IMX6SL_CLK_OSC] = imx_obtain_fixed_clock_hw("osc", 0); + /* Clock source from external clock via CLK1 PAD */ + hws[IMX6SL_CLK_ANACLK1] = imx_obtain_fixed_clock_hw("anaclk1", 0); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-anatop"); + base = of_iomap(np, 0); + WARN_ON(!base); + of_node_put(np); + anatop_base = base; + + hws[IMX6SL_PLL1_BYPASS_SRC] = imx_clk_hw_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + hws[IMX6SL_PLL2_BYPASS_SRC] = imx_clk_hw_mux("pll2_bypass_src", base + 0x30, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + hws[IMX6SL_PLL3_BYPASS_SRC] = imx_clk_hw_mux("pll3_bypass_src", base + 0x10, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + hws[IMX6SL_PLL4_BYPASS_SRC] = imx_clk_hw_mux("pll4_bypass_src", base + 0x70, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + hws[IMX6SL_PLL5_BYPASS_SRC] = imx_clk_hw_mux("pll5_bypass_src", base + 0xa0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + hws[IMX6SL_PLL6_BYPASS_SRC] = imx_clk_hw_mux("pll6_bypass_src", base + 0xe0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + hws[IMX6SL_PLL7_BYPASS_SRC] = imx_clk_hw_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 */ + hws[IMX6SL_CLK_PLL1] = imx_clk_hw_pllv3(IMX_PLLV3_SYS, "pll1", "osc", base + 0x00, 0x7f); + hws[IMX6SL_CLK_PLL2] = imx_clk_hw_pllv3(IMX_PLLV3_GENERIC, "pll2", "osc", base + 0x30, 0x1); + hws[IMX6SL_CLK_PLL3] = imx_clk_hw_pllv3(IMX_PLLV3_USB, "pll3", "osc", base + 0x10, 0x3); + hws[IMX6SL_CLK_PLL4] = imx_clk_hw_pllv3(IMX_PLLV3_AV, "pll4", "osc", base + 0x70, 0x7f); + hws[IMX6SL_CLK_PLL5] = imx_clk_hw_pllv3(IMX_PLLV3_AV, "pll5", "osc", base + 0xa0, 0x7f); + hws[IMX6SL_CLK_PLL6] = imx_clk_hw_pllv3(IMX_PLLV3_ENET, "pll6", "osc", base + 0xe0, 0x3); + hws[IMX6SL_CLK_PLL7] = imx_clk_hw_pllv3(IMX_PLLV3_USB, "pll7", "osc", base + 0x20, 0x3); + + hws[IMX6SL_PLL1_BYPASS] = imx_clk_hw_mux_flags("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT); + hws[IMX6SL_PLL2_BYPASS] = imx_clk_hw_mux_flags("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT); + hws[IMX6SL_PLL3_BYPASS] = imx_clk_hw_mux_flags("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT); + hws[IMX6SL_PLL4_BYPASS] = imx_clk_hw_mux_flags("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT); + hws[IMX6SL_PLL5_BYPASS] = imx_clk_hw_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT); + hws[IMX6SL_PLL6_BYPASS] = imx_clk_hw_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT); + hws[IMX6SL_PLL7_BYPASS] = imx_clk_hw_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT); + + /* Do not bypass PLLs initially */ + clk_set_parent(hws[IMX6SL_PLL1_BYPASS]->clk, hws[IMX6SL_CLK_PLL1]->clk); + clk_set_parent(hws[IMX6SL_PLL2_BYPASS]->clk, hws[IMX6SL_CLK_PLL2]->clk); + clk_set_parent(hws[IMX6SL_PLL3_BYPASS]->clk, hws[IMX6SL_CLK_PLL3]->clk); + clk_set_parent(hws[IMX6SL_PLL4_BYPASS]->clk, hws[IMX6SL_CLK_PLL4]->clk); + clk_set_parent(hws[IMX6SL_PLL5_BYPASS]->clk, hws[IMX6SL_CLK_PLL5]->clk); + clk_set_parent(hws[IMX6SL_PLL6_BYPASS]->clk, hws[IMX6SL_CLK_PLL6]->clk); + clk_set_parent(hws[IMX6SL_PLL7_BYPASS]->clk, hws[IMX6SL_CLK_PLL7]->clk); + + hws[IMX6SL_CLK_PLL1_SYS] = imx_clk_hw_gate("pll1_sys", "pll1_bypass", base + 0x00, 13); + hws[IMX6SL_CLK_PLL2_BUS] = imx_clk_hw_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); + hws[IMX6SL_CLK_PLL3_USB_OTG] = imx_clk_hw_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); + hws[IMX6SL_CLK_PLL4_AUDIO] = imx_clk_hw_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); + hws[IMX6SL_CLK_PLL5_VIDEO] = imx_clk_hw_gate("pll5_video", "pll5_bypass", base + 0xa0, 13); + hws[IMX6SL_CLK_PLL6_ENET] = imx_clk_hw_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13); + hws[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_hw_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13); + + hws[IMX6SL_CLK_LVDS1_SEL] = imx_clk_hw_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + hws[IMX6SL_CLK_LVDS1_OUT] = imx_clk_hw_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x160, 10, BIT(12)); + hws[IMX6SL_CLK_LVDS1_IN] = imx_clk_hw_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. + */ + hws[IMX6SL_CLK_USBPHY1] = imx_clk_hw_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20); + hws[IMX6SL_CLK_USBPHY2] = imx_clk_hw_gate("usbphy2", "pll7_usb_host", base + 0x20, 20); + hws[IMX6SL_CLK_USBPHY1_GATE] = imx_clk_hw_gate("usbphy1_gate", "dummy", base + 0x10, 6); + hws[IMX6SL_CLK_USBPHY2_GATE] = imx_clk_hw_gate("usbphy2_gate", "dummy", base + 0x20, 6); + + /* dev name parent_name flags reg shift width div: flags, div_table lock */ + hws[IMX6SL_CLK_PLL4_POST_DIV] = clk_hw_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); + hws[IMX6SL_CLK_PLL4_AUDIO_DIV] = clk_hw_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock); + hws[IMX6SL_CLK_PLL5_POST_DIV] = clk_hw_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); + hws[IMX6SL_CLK_PLL5_VIDEO_DIV] = clk_hw_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); + hws[IMX6SL_CLK_ENET_REF] = clk_hw_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 */ + hws[IMX6SL_CLK_PLL2_PFD0] = imx_clk_hw_pfd("pll2_pfd0", "pll2_bus", base + 0x100, 0); + hws[IMX6SL_CLK_PLL2_PFD1] = imx_clk_hw_pfd("pll2_pfd1", "pll2_bus", base + 0x100, 1); + hws[IMX6SL_CLK_PLL2_PFD2] = imx_clk_hw_pfd("pll2_pfd2", "pll2_bus", base + 0x100, 2); + hws[IMX6SL_CLK_PLL3_PFD0] = imx_clk_hw_pfd("pll3_pfd0", "pll3_usb_otg", base + 0xf0, 0); + hws[IMX6SL_CLK_PLL3_PFD1] = imx_clk_hw_pfd("pll3_pfd1", "pll3_usb_otg", base + 0xf0, 1); + hws[IMX6SL_CLK_PLL3_PFD2] = imx_clk_hw_pfd("pll3_pfd2", "pll3_usb_otg", base + 0xf0, 2); + hws[IMX6SL_CLK_PLL3_PFD3] = imx_clk_hw_pfd("pll3_pfd3", "pll3_usb_otg", base + 0xf0, 3); + + /* name parent_name mult div */ + hws[IMX6SL_CLK_PLL2_198M] = imx_clk_hw_fixed_factor("pll2_198m", "pll2_pfd2", 1, 2); + hws[IMX6SL_CLK_PLL3_120M] = imx_clk_hw_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4); + hws[IMX6SL_CLK_PLL3_80M] = imx_clk_hw_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6); + hws[IMX6SL_CLK_PLL3_60M] = imx_clk_hw_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); + + np = ccm_node; + base = of_iomap(np, 0); + WARN_ON(!base); + ccm_base = base; + + /* name reg shift width parent_names num_parents */ + hws[IMX6SL_CLK_STEP] = imx_clk_hw_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels)); + hws[IMX6SL_CLK_PLL1_SW] = imx_clk_hw_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); + hws[IMX6SL_CLK_OCRAM_ALT_SEL] = imx_clk_hw_mux("ocram_alt_sel", base + 0x14, 7, 1, ocram_alt_sels, ARRAY_SIZE(ocram_alt_sels)); + hws[IMX6SL_CLK_OCRAM_SEL] = imx_clk_hw_mux("ocram_sel", base + 0x14, 6, 1, ocram_sels, ARRAY_SIZE(ocram_sels)); + hws[IMX6SL_CLK_PRE_PERIPH2_SEL] = imx_clk_hw_mux("pre_periph2_sel", base + 0x18, 21, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); + hws[IMX6SL_CLK_PRE_PERIPH_SEL] = imx_clk_hw_mux("pre_periph_sel", base + 0x18, 18, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); + hws[IMX6SL_CLK_PERIPH2_CLK2_SEL] = imx_clk_hw_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); + hws[IMX6SL_CLK_PERIPH_CLK2_SEL] = imx_clk_hw_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); + hws[IMX6SL_CLK_CSI_SEL] = imx_clk_hw_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels)); + hws[IMX6SL_CLK_LCDIF_AXI_SEL] = imx_clk_hw_mux("lcdif_axi_sel", base + 0x3c, 14, 2, lcdif_axi_sels, ARRAY_SIZE(lcdif_axi_sels)); + hws[IMX6SL_CLK_USDHC1_SEL] = imx_clk_hw_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_USDHC2_SEL] = imx_clk_hw_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_USDHC3_SEL] = imx_clk_hw_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_USDHC4_SEL] = imx_clk_hw_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_SSI1_SEL] = imx_clk_hw_fixup_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_SSI2_SEL] = imx_clk_hw_fixup_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_SSI3_SEL] = imx_clk_hw_fixup_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_PERCLK_SEL] = imx_clk_hw_fixup_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels), imx_cscmr1_fixup); + hws[IMX6SL_CLK_PXP_AXI_SEL] = imx_clk_hw_mux("pxp_axi_sel", base + 0x34, 6, 3, pxp_axi_sels, ARRAY_SIZE(pxp_axi_sels)); + hws[IMX6SL_CLK_EPDC_AXI_SEL] = imx_clk_hw_mux("epdc_axi_sel", base + 0x34, 15, 3, epdc_axi_sels, ARRAY_SIZE(epdc_axi_sels)); + hws[IMX6SL_CLK_GPU2D_OVG_SEL] = imx_clk_hw_mux("gpu2d_ovg_sel", base + 0x18, 4, 2, gpu2d_ovg_sels, ARRAY_SIZE(gpu2d_ovg_sels)); + hws[IMX6SL_CLK_GPU2D_SEL] = imx_clk_hw_mux("gpu2d_sel", base + 0x18, 8, 2, gpu2d_sels, ARRAY_SIZE(gpu2d_sels)); + hws[IMX6SL_CLK_LCDIF_PIX_SEL] = imx_clk_hw_mux("lcdif_pix_sel", base + 0x38, 6, 3, lcdif_pix_sels, ARRAY_SIZE(lcdif_pix_sels)); + hws[IMX6SL_CLK_EPDC_PIX_SEL] = imx_clk_hw_mux("epdc_pix_sel", base + 0x38, 15, 3, epdc_pix_sels, ARRAY_SIZE(epdc_pix_sels)); + hws[IMX6SL_CLK_SPDIF0_SEL] = imx_clk_hw_mux("spdif0_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); + hws[IMX6SL_CLK_SPDIF1_SEL] = imx_clk_hw_mux("spdif1_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); + hws[IMX6SL_CLK_EXTERN_AUDIO_SEL] = imx_clk_hw_mux("extern_audio_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels)); + hws[IMX6SL_CLK_ECSPI_SEL] = imx_clk_hw_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels)); + hws[IMX6SL_CLK_UART_SEL] = imx_clk_hw_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); + + /* name reg shift width busy: reg, shift parent_names num_parents */ + hws[IMX6SL_CLK_PERIPH] = imx_clk_hw_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels)); + hws[IMX6SL_CLK_PERIPH2] = imx_clk_hw_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels)); + + /* name parent_name reg shift width */ + hws[IMX6SL_CLK_OCRAM_PODF] = imx_clk_hw_busy_divider("ocram_podf", "ocram_sel", base + 0x14, 16, 3, base + 0x48, 0); + hws[IMX6SL_CLK_PERIPH_CLK2_PODF] = imx_clk_hw_divider("periph_clk2_podf", "periph_clk2_sel", base + 0x14, 27, 3); + hws[IMX6SL_CLK_PERIPH2_CLK2_PODF] = imx_clk_hw_divider("periph2_clk2_podf", "periph2_clk2_sel", base + 0x14, 0, 3); + hws[IMX6SL_CLK_IPG] = imx_clk_hw_divider("ipg", "ahb", base + 0x14, 8, 2); + hws[IMX6SL_CLK_CSI_PODF] = imx_clk_hw_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3); + hws[IMX6SL_CLK_LCDIF_AXI_PODF] = imx_clk_hw_divider("lcdif_axi_podf", "lcdif_axi_sel", base + 0x3c, 16, 3); + hws[IMX6SL_CLK_USDHC1_PODF] = imx_clk_hw_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3); + hws[IMX6SL_CLK_USDHC2_PODF] = imx_clk_hw_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3); + hws[IMX6SL_CLK_USDHC3_PODF] = imx_clk_hw_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3); + hws[IMX6SL_CLK_USDHC4_PODF] = imx_clk_hw_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3); + hws[IMX6SL_CLK_SSI1_PRED] = imx_clk_hw_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3); + hws[IMX6SL_CLK_SSI1_PODF] = imx_clk_hw_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6); + hws[IMX6SL_CLK_SSI2_PRED] = imx_clk_hw_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3); + hws[IMX6SL_CLK_SSI2_PODF] = imx_clk_hw_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6); + hws[IMX6SL_CLK_SSI3_PRED] = imx_clk_hw_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3); + hws[IMX6SL_CLK_SSI3_PODF] = imx_clk_hw_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6); + hws[IMX6SL_CLK_PERCLK] = imx_clk_hw_fixup_divider("perclk", "perclk_sel", base + 0x1c, 0, 6, imx_cscmr1_fixup); + hws[IMX6SL_CLK_PXP_AXI_PODF] = imx_clk_hw_divider("pxp_axi_podf", "pxp_axi_sel", base + 0x34, 3, 3); + hws[IMX6SL_CLK_EPDC_AXI_PODF] = imx_clk_hw_divider("epdc_axi_podf", "epdc_axi_sel", base + 0x34, 12, 3); + hws[IMX6SL_CLK_GPU2D_OVG_PODF] = imx_clk_hw_divider("gpu2d_ovg_podf", "gpu2d_ovg_sel", base + 0x18, 26, 3); + hws[IMX6SL_CLK_GPU2D_PODF] = imx_clk_hw_divider("gpu2d_podf", "gpu2d_sel", base + 0x18, 29, 3); + hws[IMX6SL_CLK_LCDIF_PIX_PRED] = imx_clk_hw_divider("lcdif_pix_pred", "lcdif_pix_sel", base + 0x38, 3, 3); + hws[IMX6SL_CLK_EPDC_PIX_PRED] = imx_clk_hw_divider("epdc_pix_pred", "epdc_pix_sel", base + 0x38, 12, 3); + hws[IMX6SL_CLK_LCDIF_PIX_PODF] = imx_clk_hw_fixup_divider("lcdif_pix_podf", "lcdif_pix_pred", base + 0x1c, 20, 3, imx_cscmr1_fixup); + hws[IMX6SL_CLK_EPDC_PIX_PODF] = imx_clk_hw_divider("epdc_pix_podf", "epdc_pix_pred", base + 0x18, 23, 3); + hws[IMX6SL_CLK_SPDIF0_PRED] = imx_clk_hw_divider("spdif0_pred", "spdif0_sel", base + 0x30, 25, 3); + hws[IMX6SL_CLK_SPDIF0_PODF] = imx_clk_hw_divider("spdif0_podf", "spdif0_pred", base + 0x30, 22, 3); + hws[IMX6SL_CLK_SPDIF1_PRED] = imx_clk_hw_divider("spdif1_pred", "spdif1_sel", base + 0x30, 12, 3); + hws[IMX6SL_CLK_SPDIF1_PODF] = imx_clk_hw_divider("spdif1_podf", "spdif1_pred", base + 0x30, 9, 3); + hws[IMX6SL_CLK_EXTERN_AUDIO_PRED] = imx_clk_hw_divider("extern_audio_pred", "extern_audio_sel", base + 0x28, 9, 3); + hws[IMX6SL_CLK_EXTERN_AUDIO_PODF] = imx_clk_hw_divider("extern_audio_podf", "extern_audio_pred", base + 0x28, 25, 3); + hws[IMX6SL_CLK_ECSPI_ROOT] = imx_clk_hw_divider("ecspi_root", "ecspi_sel", base + 0x38, 19, 6); + hws[IMX6SL_CLK_UART_ROOT] = imx_clk_hw_divider("uart_root", "uart_sel", base + 0x24, 0, 6); + + /* name parent_name reg shift width busy: reg, shift */ + hws[IMX6SL_CLK_AHB] = imx_clk_hw_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1); + hws[IMX6SL_CLK_MMDC_ROOT] = imx_clk_hw_busy_divider("mmdc", "periph2", base + 0x14, 3, 3, base + 0x48, 2); + hws[IMX6SL_CLK_ARM] = imx_clk_hw_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16); + + /* name parent_name reg shift */ + hws[IMX6SL_CLK_ECSPI1] = imx_clk_hw_gate2("ecspi1", "ecspi_root", base + 0x6c, 0); + hws[IMX6SL_CLK_ECSPI2] = imx_clk_hw_gate2("ecspi2", "ecspi_root", base + 0x6c, 2); + hws[IMX6SL_CLK_ECSPI3] = imx_clk_hw_gate2("ecspi3", "ecspi_root", base + 0x6c, 4); + hws[IMX6SL_CLK_ECSPI4] = imx_clk_hw_gate2("ecspi4", "ecspi_root", base + 0x6c, 6); + hws[IMX6SL_CLK_ENET] = imx_clk_hw_gate2("enet", "ipg", base + 0x6c, 10); + hws[IMX6SL_CLK_EPIT1] = imx_clk_hw_gate2("epit1", "perclk", base + 0x6c, 12); + hws[IMX6SL_CLK_EPIT2] = imx_clk_hw_gate2("epit2", "perclk", base + 0x6c, 14); + hws[IMX6SL_CLK_EXTERN_AUDIO] = imx_clk_hw_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16); + hws[IMX6SL_CLK_GPT] = imx_clk_hw_gate2("gpt", "perclk", base + 0x6c, 20); + hws[IMX6SL_CLK_GPT_SERIAL] = imx_clk_hw_gate2("gpt_serial", "perclk", base + 0x6c, 22); + hws[IMX6SL_CLK_GPU2D_OVG] = imx_clk_hw_gate2("gpu2d_ovg", "gpu2d_ovg_podf", base + 0x6c, 26); + hws[IMX6SL_CLK_I2C1] = imx_clk_hw_gate2("i2c1", "perclk", base + 0x70, 6); + hws[IMX6SL_CLK_I2C2] = imx_clk_hw_gate2("i2c2", "perclk", base + 0x70, 8); + hws[IMX6SL_CLK_I2C3] = imx_clk_hw_gate2("i2c3", "perclk", base + 0x70, 10); + hws[IMX6SL_CLK_OCOTP] = imx_clk_hw_gate2("ocotp", "ipg", base + 0x70, 12); + hws[IMX6SL_CLK_CSI] = imx_clk_hw_gate2("csi", "csi_podf", base + 0x74, 0); + hws[IMX6SL_CLK_PXP_AXI] = imx_clk_hw_gate2("pxp_axi", "pxp_axi_podf", base + 0x74, 2); + hws[IMX6SL_CLK_EPDC_AXI] = imx_clk_hw_gate2("epdc_axi", "epdc_axi_podf", base + 0x74, 4); + hws[IMX6SL_CLK_LCDIF_AXI] = imx_clk_hw_gate2("lcdif_axi", "lcdif_axi_podf", base + 0x74, 6); + hws[IMX6SL_CLK_LCDIF_PIX] = imx_clk_hw_gate2("lcdif_pix", "lcdif_pix_podf", base + 0x74, 8); + hws[IMX6SL_CLK_EPDC_PIX] = imx_clk_hw_gate2("epdc_pix", "epdc_pix_podf", base + 0x74, 10); + hws[IMX6SL_CLK_MMDC_P0_IPG] = imx_clk_hw_gate2_flags("mmdc_p0_ipg", "ipg", base + 0x74, 24, CLK_IS_CRITICAL); + hws[IMX6SL_CLK_MMDC_P1_IPG] = imx_clk_hw_gate2("mmdc_p1_ipg", "ipg", base + 0x74, 26); + hws[IMX6SL_CLK_OCRAM] = imx_clk_hw_gate2("ocram", "ocram_podf", base + 0x74, 28); + hws[IMX6SL_CLK_PWM1] = imx_clk_hw_gate2("pwm1", "perclk", base + 0x78, 16); + hws[IMX6SL_CLK_PWM2] = imx_clk_hw_gate2("pwm2", "perclk", base + 0x78, 18); + hws[IMX6SL_CLK_PWM3] = imx_clk_hw_gate2("pwm3", "perclk", base + 0x78, 20); + hws[IMX6SL_CLK_PWM4] = imx_clk_hw_gate2("pwm4", "perclk", base + 0x78, 22); + hws[IMX6SL_CLK_SDMA] = imx_clk_hw_gate2("sdma", "ipg", base + 0x7c, 6); + hws[IMX6SL_CLK_SPBA] = imx_clk_hw_gate2("spba", "ipg", base + 0x7c, 12); + hws[IMX6SL_CLK_SPDIF] = imx_clk_hw_gate2_shared("spdif", "spdif0_podf", base + 0x7c, 14, &share_count_spdif); + hws[IMX6SL_CLK_SPDIF_GCLK] = imx_clk_hw_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_spdif); + hws[IMX6SL_CLK_SSI1_IPG] = imx_clk_hw_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1); + hws[IMX6SL_CLK_SSI2_IPG] = imx_clk_hw_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2); + hws[IMX6SL_CLK_SSI3_IPG] = imx_clk_hw_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3); + hws[IMX6SL_CLK_SSI1] = imx_clk_hw_gate2_shared("ssi1", "ssi1_podf", base + 0x7c, 18, &share_count_ssi1); + hws[IMX6SL_CLK_SSI2] = imx_clk_hw_gate2_shared("ssi2", "ssi2_podf", base + 0x7c, 20, &share_count_ssi2); + hws[IMX6SL_CLK_SSI3] = imx_clk_hw_gate2_shared("ssi3", "ssi3_podf", base + 0x7c, 22, &share_count_ssi3); + hws[IMX6SL_CLK_UART] = imx_clk_hw_gate2("uart", "ipg", base + 0x7c, 24); + hws[IMX6SL_CLK_UART_SERIAL] = imx_clk_hw_gate2("uart_serial", "uart_root", base + 0x7c, 26); + hws[IMX6SL_CLK_USBOH3] = imx_clk_hw_gate2("usboh3", "ipg", base + 0x80, 0); + hws[IMX6SL_CLK_USDHC1] = imx_clk_hw_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2); + hws[IMX6SL_CLK_USDHC2] = imx_clk_hw_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); + hws[IMX6SL_CLK_USDHC3] = imx_clk_hw_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); + hws[IMX6SL_CLK_USDHC4] = imx_clk_hw_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); + + /* Ensure the MMDC CH0 handshake is bypassed */ + imx_mmdc_mask_handshake(base, 0); + + imx_check_clk_hws(hws, IMX6SL_CLK_END); + + of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data); + + /* Ensure the AHB clk is at 132MHz. */ + ret = clk_set_rate(hws[IMX6SL_CLK_AHB]->clk, 132000000); + if (ret) + pr_warn("%s: failed to set AHB clock rate %d!\n", + __func__, ret); + + if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { + clk_prepare_enable(hws[IMX6SL_CLK_USBPHY1_GATE]->clk); + clk_prepare_enable(hws[IMX6SL_CLK_USBPHY2_GATE]->clk); + } + + /* Audio-related clocks configuration */ + clk_set_parent(hws[IMX6SL_CLK_SPDIF0_SEL]->clk, hws[IMX6SL_CLK_PLL3_PFD3]->clk); + + /* set PLL5 video as lcdif pix parent clock */ + clk_set_parent(hws[IMX6SL_CLK_LCDIF_PIX_SEL]->clk, + hws[IMX6SL_CLK_PLL5_VIDEO_DIV]->clk); + + clk_set_parent(hws[IMX6SL_CLK_LCDIF_AXI_SEL]->clk, + hws[IMX6SL_CLK_PLL2_PFD2]->clk); + + imx_register_uart_clocks(2); +} +CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init); |