diff options
Diffstat (limited to 'drivers/clk/imx/clk-imx6sx.c')
| -rw-r--r-- | drivers/clk/imx/clk-imx6sx.c | 285 |
1 files changed, 222 insertions, 63 deletions
diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c index 8bbc2542f2f7..7e8993f80340 100644 --- a/drivers/clk/imx/clk-imx6sx.c +++ b/drivers/clk/imx/clk-imx6sx.c @@ -1,5 +1,6 @@ /* - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. + * Copyright 2017 NXP * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License @@ -13,15 +14,19 @@ #include <linux/clk.h> #include <linux/clkdev.h> #include <linux/err.h> +#include <linux/imx_sema4.h> #include <linux/init.h> #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_irq.h> #include <linux/types.h> +#include <soc/imx/gpc.h> +#include <soc/imx/src.h> #include "clk.h" +#define CCM_CCGR_OFFSET(index) (index * 2) #define CCDR 0x4 #define BM_CCM_CCDR_MMDC_CH0_MASK (0x2 << 16) @@ -80,7 +85,7 @@ static const char *lvds_sels[] = { "arm", "pll1_sys", "dummy", "dummy", "dummy", "dummy", "dummy", "pll5_video_div", "dummy", "dummy", "pcie_ref_125m", "dummy", "usbphy1", "usbphy2", }; -static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", }; +static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", "lvds2_in", "dummy", }; 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", }; @@ -91,18 +96,19 @@ static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; static struct clk *clks[IMX6SX_CLK_CLK_END]; static struct clk_onecell_data clk_data; +struct imx_sema4_mutex *amp_power_mutex; + +static int clks_shared[MAX_SHARED_CLK_NUMBER]; + +struct imx_shared_mem *shared_mem; +static unsigned int shared_mem_paddr, shared_mem_size; static int const clks_init_on[] __initconst = { IMX6SX_CLK_AIPS_TZ1, IMX6SX_CLK_AIPS_TZ2, IMX6SX_CLK_AIPS_TZ3, IMX6SX_CLK_IPMUX1, IMX6SX_CLK_IPMUX2, IMX6SX_CLK_IPMUX3, IMX6SX_CLK_WAKEUP, IMX6SX_CLK_MMDC_P0_FAST, IMX6SX_CLK_MMDC_P0_IPG, IMX6SX_CLK_ROM, IMX6SX_CLK_ARM, IMX6SX_CLK_IPG, IMX6SX_CLK_OCRAM, - IMX6SX_CLK_PER2_MAIN, IMX6SX_CLK_PERCLK, IMX6SX_CLK_M4, - IMX6SX_CLK_QSPI1, IMX6SX_CLK_QSPI2, IMX6SX_CLK_UART_IPG, - IMX6SX_CLK_UART_SERIAL, IMX6SX_CLK_I2C3, IMX6SX_CLK_ECSPI5, - IMX6SX_CLK_CAN1_IPG, IMX6SX_CLK_CAN1_SERIAL, IMX6SX_CLK_CAN2_IPG, - IMX6SX_CLK_CAN2_SERIAL, IMX6SX_CLK_CANFD, IMX6SX_CLK_EPIT1, - IMX6SX_CLK_EPIT2, + IMX6SX_CLK_PER2_MAIN, IMX6SX_CLK_PERCLK, IMX6SX_CLK_TZASC1, }; static struct clk_div_table clk_enet_ref_table[] = { @@ -143,6 +149,38 @@ static struct clk ** const uart_clks[] __initconst = { NULL }; +/* + * As IMX6SX_CLK_M4_PRE_SEL is NOT a glitchless MUX, so when + * M4 is trying to change its clk parent, need to ask A9 to + * help do it, and M4 must be hold in wfi. To avoid glitch + * occur, need to gate M4 clk first before switching its parent. + */ +void imx6sx_set_m4_highfreq(bool high_freq) +{ + static struct clk *m4_high_freq_sel; + + imx_gpc_hold_m4_in_sleep(); + + clk_disable_unprepare(clks[IMX6SX_CLK_M4]); + imx_clk_set_parent(clks[IMX6SX_CLK_M4_SEL], + clks[IMX6SX_CLK_LDB_DI0]); + + if (high_freq) { + imx_clk_set_parent(clks[IMX6SX_CLK_M4_PRE_SEL], + m4_high_freq_sel); + } else { + m4_high_freq_sel = clk_get_parent(clks[IMX6SX_CLK_M4_PRE_SEL]); + imx_clk_set_parent(clks[IMX6SX_CLK_M4_PRE_SEL], + clks[IMX6SX_CLK_OSC]); + } + + imx_clk_set_parent(clks[IMX6SX_CLK_M4_SEL], + clks[IMX6SX_CLK_M4_PRE_SEL]); + clk_prepare_enable(clks[IMX6SX_CLK_M4]); + + imx_gpc_release_m4_in_sleep(); +} + static void __init imx6sx_clocks_init(struct device_node *ccm_node) { struct device_node *np; @@ -160,6 +198,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) /* Clock source from external clock via CLK1 PAD */ clks[IMX6SX_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0); + clks[IMX6SX_CLK_ANACLK2] = imx_obtain_fixed_clock("anaclk2", 0); np = of_find_compatible_node(NULL, NULL, "fsl,imx6sx-anatop"); base = of_iomap(np, 0); @@ -176,7 +215,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) /* type name parent_name base div_mask */ clks[IMX6SX_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1", "osc", base + 0x00, 0x7f); - clks[IMX6SX_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "osc", base + 0x30, 0x1); + clks[IMX6SX_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_PLL2, "pll2", "osc", base + 0x30, 0x1); clks[IMX6SX_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3", "osc", base + 0x10, 0x3); clks[IMX6SX_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "osc", base + 0x70, 0x7f); clks[IMX6SX_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5", "osc", base + 0xa0, 0x7f); @@ -192,15 +231,15 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_PLL7_BYPASS] = imx_clk_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(clks[IMX6SX_PLL1_BYPASS], clks[IMX6SX_CLK_PLL1]); - clk_set_parent(clks[IMX6SX_PLL2_BYPASS], clks[IMX6SX_CLK_PLL2]); - clk_set_parent(clks[IMX6SX_PLL3_BYPASS], clks[IMX6SX_CLK_PLL3]); - clk_set_parent(clks[IMX6SX_PLL4_BYPASS], clks[IMX6SX_CLK_PLL4]); - clk_set_parent(clks[IMX6SX_PLL5_BYPASS], clks[IMX6SX_CLK_PLL5]); - clk_set_parent(clks[IMX6SX_PLL6_BYPASS], clks[IMX6SX_CLK_PLL6]); - clk_set_parent(clks[IMX6SX_PLL7_BYPASS], clks[IMX6SX_CLK_PLL7]); - - clks[IMX6SX_CLK_PLL1_SYS] = imx_clk_gate("pll1_sys", "pll1_bypass", base + 0x00, 13); + imx_clk_set_parent(clks[IMX6SX_PLL1_BYPASS], clks[IMX6SX_CLK_PLL1]); + imx_clk_set_parent(clks[IMX6SX_PLL2_BYPASS], clks[IMX6SX_CLK_PLL2]); + imx_clk_set_parent(clks[IMX6SX_PLL3_BYPASS], clks[IMX6SX_CLK_PLL3]); + imx_clk_set_parent(clks[IMX6SX_PLL4_BYPASS], clks[IMX6SX_CLK_PLL4]); + imx_clk_set_parent(clks[IMX6SX_PLL5_BYPASS], clks[IMX6SX_CLK_PLL5]); + imx_clk_set_parent(clks[IMX6SX_PLL6_BYPASS], clks[IMX6SX_CLK_PLL6]); + imx_clk_set_parent(clks[IMX6SX_PLL7_BYPASS], clks[IMX6SX_CLK_PLL7]); + + clks[IMX6SX_CLK_PLL1_SYS] = imx_clk_fixed_factor("pll1_sys", "pll1_bypass", 1, 1); clks[IMX6SX_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); clks[IMX6SX_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); clks[IMX6SX_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); @@ -229,7 +268,9 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_CLK_PCIE_REF_125M] = imx_clk_gate("pcie_ref_125m", "pcie_ref", base + 0xe0, 19); clks[IMX6SX_CLK_LVDS1_OUT] = imx_clk_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x160, 10, BIT(12)); + clks[IMX6SX_CLK_LVDS2_OUT] = imx_clk_gate_exclusive("lvds2_out", "lvds2_sel", base + 0x160, 11, BIT(13)); clks[IMX6SX_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", base + 0x160, 12, BIT(10)); + clks[IMX6SX_CLK_LVDS2_IN] = imx_clk_gate_exclusive("lvds2_in", "anaclk2", base + 0x160, 13, BIT(11)); clks[IMX6SX_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, base + 0xe0, 0, 2, 0, clk_enet_ref_table, @@ -271,6 +312,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) /* name reg shift width parent_names num_parents */ clks[IMX6SX_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + clks[IMX6SX_CLK_LVDS2_SEL] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); np = ccm_node; base = of_iomap(np, 0); @@ -278,12 +320,12 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) /* name reg shift width parent_names num_parents */ clks[IMX6SX_CLK_STEP] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels)); - clks[IMX6SX_CLK_PLL1_SW] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); + clks[IMX6SX_CLK_PLL1_SW] = imx_clk_mux_glitchless("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); clks[IMX6SX_CLK_OCRAM_SEL] = imx_clk_mux("ocram_sel", base + 0x14, 6, 2, ocram_sels, ARRAY_SIZE(ocram_sels)); - clks[IMX6SX_CLK_PERIPH_PRE] = imx_clk_mux("periph_pre", base + 0x18, 18, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels)); - clks[IMX6SX_CLK_PERIPH2_PRE] = imx_clk_mux("periph2_pre", base + 0x18, 21, 2, periph2_pre_sels, ARRAY_SIZE(periph2_pre_sels)); - clks[IMX6SX_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); - clks[IMX6SX_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); + clks[IMX6SX_CLK_PERIPH_PRE] = imx_clk_mux_bus("periph_pre", base + 0x18, 18, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels)); + clks[IMX6SX_CLK_PERIPH2_PRE] = imx_clk_mux_bus("periph2_pre", base + 0x18, 21, 2, periph2_pre_sels, ARRAY_SIZE(periph2_pre_sels)); + clks[IMX6SX_CLK_PERIPH_CLK2_SEL] = imx_clk_mux_bus("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); + clks[IMX6SX_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux_bus("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); clks[IMX6SX_CLK_PCIE_AXI_SEL] = imx_clk_mux("pcie_axi_sel", base + 0x18, 10, 1, pcie_axi_sels, ARRAY_SIZE(pcie_axi_sels)); clks[IMX6SX_CLK_GPU_AXI_SEL] = imx_clk_mux("gpu_axi_sel", base + 0x18, 8, 2, gpu_axi_sels, ARRAY_SIZE(gpu_axi_sels)); clks[IMX6SX_CLK_GPU_CORE_SEL] = imx_clk_mux("gpu_core_sel", base + 0x18, 4, 2, gpu_core_sels, ARRAY_SIZE(gpu_core_sels)); @@ -295,13 +337,13 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_CLK_SSI3_SEL] = imx_clk_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); clks[IMX6SX_CLK_SSI2_SEL] = imx_clk_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); clks[IMX6SX_CLK_SSI1_SEL] = imx_clk_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); - clks[IMX6SX_CLK_QSPI1_SEL] = imx_clk_mux_flags("qspi1_sel", base + 0x1c, 7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_QSPI1_SEL] = imx_clk_mux("qspi1_sel", base + 0x1c, 7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels)); clks[IMX6SX_CLK_PERCLK_SEL] = imx_clk_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels)); clks[IMX6SX_CLK_VID_SEL] = imx_clk_mux("vid_sel", base + 0x20, 21, 3, vid_sels, ARRAY_SIZE(vid_sels)); clks[IMX6SX_CLK_ESAI_SEL] = imx_clk_mux("esai_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels)); clks[IMX6SX_CLK_CAN_SEL] = imx_clk_mux("can_sel", base + 0x20, 8, 2, can_sels, ARRAY_SIZE(can_sels)); clks[IMX6SX_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); - clks[IMX6SX_CLK_QSPI2_SEL] = imx_clk_mux_flags("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_QSPI2_SEL] = imx_clk_mux("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels)); clks[IMX6SX_CLK_SPDIF_SEL] = imx_clk_mux("spdif_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); clks[IMX6SX_CLK_AUDIO_SEL] = imx_clk_mux("audio_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); clks[IMX6SX_CLK_ENET_PRE_SEL] = imx_clk_mux("enet_pre_sel", base + 0x34, 15, 3, enet_pre_sels, ARRAY_SIZE(enet_pre_sels)); @@ -495,79 +537,196 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_CLK_CKO1] = imx_clk_gate("cko1", "cko1_podf", base + 0x60, 7); clks[IMX6SX_CLK_CKO2] = imx_clk_gate("cko2", "cko2_podf", base + 0x60, 24); + /* get those shared clk nodes if M4 is active */ + if (imx_src_is_m4_enabled()) { + u32 num; + + of_property_read_u32(np, "fsl,shared-clks-number", &num); + if (num > MAX_SHARED_CLK_NUMBER) + pr_err("clk: shared clk nodes exceed the max number!\n"); + of_property_read_u32_array(np, "fsl,shared-clks-index", + clks_shared, num); + if (of_property_read_u32(np, "fsl,shared-mem-addr", + &shared_mem_paddr)) + pr_err("clk: fsl,shared-mem-addr NOT found!\n"); + if (of_property_read_u32(np, "fsl,shared-mem-size", + &shared_mem_size)) + pr_err("clk: fsl,shared-mem-size NOT found!\n"); + } + /* mask handshake of mmdc */ writel_relaxed(BM_CCM_CCDR_MMDC_CH0_MASK, base + CCDR); imx_check_clocks(clks, ARRAY_SIZE(clks)); + /* + * QSPI2/GPMI_IO share the same clock source but with the + * different gate, need explicitely gate the QSPI2 & GPMI_IO + * during the clock init phase according to the SOC design. + */ + if (!imx_src_is_m4_enabled()) { + writel_relaxed(readl_relaxed(base + 0x78) & + ~(3 << CCM_CCGR_OFFSET(5)), base + 0x78); + writel_relaxed(readl_relaxed(base + 0x78) & + ~(3 << CCM_CCGR_OFFSET(14)), base + 0x78); + } + clk_data.clks = clks; clk_data.clk_num = ARRAY_SIZE(clks); of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); - for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) - clk_prepare_enable(clks[clks_init_on[i]]); + /* + * As some of the modules need to access ocotp in MSL, + * need to make sure ocotp clk(CCM_CCGR2_CG6) is enabled + * during MSL, as on i.MX6SX, accessing OCOTP registers + * needs its clk on, it will be disabled by clk late + * init and managed by ocotp driver. + */ + writel_relaxed(readl_relaxed(base + 0x70) | 1 << 12, base + 0x70); + + /* maintain M4 usecount */ + if (imx_src_is_m4_enabled()) + imx_clk_prepare_enable(clks[IMX6SX_CLK_M4]); + + /* set perclk to from OSC */ + imx_clk_set_parent(clks[IMX6SX_CLK_PERCLK_SEL], clks[IMX6SX_CLK_OSC]); if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { - clk_prepare_enable(clks[IMX6SX_CLK_USBPHY1_GATE]); - clk_prepare_enable(clks[IMX6SX_CLK_USBPHY2_GATE]); + imx_clk_prepare_enable(clks[IMX6SX_CLK_USBPHY1_GATE]); + imx_clk_prepare_enable(clks[IMX6SX_CLK_USBPHY2_GATE]); } /* Set the default 132MHz for EIM module */ - clk_set_parent(clks[IMX6SX_CLK_EIM_SLOW_SEL], clks[IMX6SX_CLK_PLL2_PFD2]); - clk_set_rate(clks[IMX6SX_CLK_EIM_SLOW], 132000000); + imx_clk_set_parent(clks[IMX6SX_CLK_EIM_SLOW_SEL], clks[IMX6SX_CLK_PLL2_PFD2]); + imx_clk_set_rate(clks[IMX6SX_CLK_EIM_SLOW], 132000000); /* set parent clock for LCDIF1 pixel clock */ - clk_set_parent(clks[IMX6SX_CLK_LCDIF1_PRE_SEL], clks[IMX6SX_CLK_PLL5_VIDEO_DIV]); - clk_set_parent(clks[IMX6SX_CLK_LCDIF1_SEL], clks[IMX6SX_CLK_LCDIF1_PODF]); + imx_clk_set_parent(clks[IMX6SX_CLK_LCDIF1_PRE_SEL], clks[IMX6SX_CLK_PLL5_VIDEO_DIV]); + imx_clk_set_parent(clks[IMX6SX_CLK_LCDIF1_SEL], clks[IMX6SX_CLK_LCDIF1_PODF]); + + /* set parent clock for LCDIF2 */ + imx_clk_set_parent(clks[IMX6SX_CLK_LCDIF2_SEL], clks[IMX6SX_CLK_LDB_DI0]); /* Set the parent clks of PCIe lvds1 and pcie_axi to be pcie ref, axi */ - if (clk_set_parent(clks[IMX6SX_CLK_LVDS1_SEL], clks[IMX6SX_CLK_PCIE_REF_125M])) - pr_err("Failed to set pcie bus parent clk.\n"); - if (clk_set_parent(clks[IMX6SX_CLK_PCIE_AXI_SEL], clks[IMX6SX_CLK_AXI])) - pr_err("Failed to set pcie parent clk.\n"); + imx_clk_set_parent(clks[IMX6SX_CLK_LVDS1_SEL], clks[IMX6SX_CLK_PCIE_REF_125M]); + imx_clk_set_parent(clks[IMX6SX_CLK_PCIE_AXI_SEL], clks[IMX6SX_CLK_AXI]); /* * Init enet system AHB clock, set to 200MHz * pll2_pfd2_396m-> ENET_PODF-> ENET_AHB */ - clk_set_parent(clks[IMX6SX_CLK_ENET_PRE_SEL], clks[IMX6SX_CLK_PLL2_PFD2]); - clk_set_parent(clks[IMX6SX_CLK_ENET_SEL], clks[IMX6SX_CLK_ENET_PODF]); - clk_set_rate(clks[IMX6SX_CLK_ENET_PODF], 200000000); - clk_set_rate(clks[IMX6SX_CLK_ENET_REF], 125000000); - clk_set_rate(clks[IMX6SX_CLK_ENET2_REF], 125000000); + imx_clk_set_parent(clks[IMX6SX_CLK_ENET_PRE_SEL], clks[IMX6SX_CLK_PLL2_PFD2]); + imx_clk_set_parent(clks[IMX6SX_CLK_ENET_SEL], clks[IMX6SX_CLK_ENET_PODF]); + imx_clk_set_rate(clks[IMX6SX_CLK_ENET_PODF], 200000000); + imx_clk_set_rate(clks[IMX6SX_CLK_ENET_REF], 125000000); + imx_clk_set_rate(clks[IMX6SX_CLK_ENET2_REF], 125000000); /* Audio clocks */ - clk_set_rate(clks[IMX6SX_CLK_PLL4_AUDIO_DIV], 393216000); + imx_clk_set_rate(clks[IMX6SX_CLK_PLL4_AUDIO_DIV], 393216000); - clk_set_parent(clks[IMX6SX_CLK_SPDIF_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); - clk_set_rate(clks[IMX6SX_CLK_SPDIF_PODF], 98304000); + imx_clk_set_parent(clks[IMX6SX_CLK_SPDIF_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + imx_clk_set_rate(clks[IMX6SX_CLK_SPDIF_PODF], 24576000); - clk_set_parent(clks[IMX6SX_CLK_AUDIO_SEL], clks[IMX6SX_CLK_PLL3_USB_OTG]); - clk_set_rate(clks[IMX6SX_CLK_AUDIO_PODF], 24000000); + imx_clk_set_parent(clks[IMX6SX_CLK_AUDIO_SEL], clks[IMX6SX_CLK_PLL3_USB_OTG]); + imx_clk_set_rate(clks[IMX6SX_CLK_AUDIO_PODF], 24000000); - clk_set_parent(clks[IMX6SX_CLK_SSI1_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); - clk_set_parent(clks[IMX6SX_CLK_SSI2_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); - clk_set_parent(clks[IMX6SX_CLK_SSI3_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); - clk_set_rate(clks[IMX6SX_CLK_SSI1_PODF], 24576000); - clk_set_rate(clks[IMX6SX_CLK_SSI2_PODF], 24576000); - clk_set_rate(clks[IMX6SX_CLK_SSI3_PODF], 24576000); + imx_clk_set_parent(clks[IMX6SX_CLK_SSI1_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + imx_clk_set_parent(clks[IMX6SX_CLK_SSI2_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + imx_clk_set_parent(clks[IMX6SX_CLK_SSI3_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + imx_clk_set_rate(clks[IMX6SX_CLK_SSI1_PODF], 24576000); + imx_clk_set_rate(clks[IMX6SX_CLK_SSI2_PODF], 24576000); + imx_clk_set_rate(clks[IMX6SX_CLK_SSI3_PODF], 24576000); - clk_set_parent(clks[IMX6SX_CLK_ESAI_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); - clk_set_rate(clks[IMX6SX_CLK_ESAI_PODF], 24576000); + imx_clk_set_parent(clks[IMX6SX_CLK_ESAI_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + imx_clk_set_rate(clks[IMX6SX_CLK_ESAI_PODF], 24576000); - /* Set parent clock for vadc */ - clk_set_parent(clks[IMX6SX_CLK_VID_SEL], clks[IMX6SX_CLK_PLL3_USB_OTG]); + /* Set the UART parent if needed. */ + if (uart_from_osc) + clk_set_parent(clks[IMX6SX_CLK_UART_SEL], clks[IMX6SX_CLK_OSC]); + else + clk_set_parent(clks[IMX6SX_CLK_UART_SEL], clks[IMX6SX_CLK_PLL3_80M]); - /* default parent of can_sel clock is invalid, manually set it here */ - clk_set_parent(clks[IMX6SX_CLK_CAN_SEL], clks[IMX6SX_CLK_PLL3_60M]); + /* Set parent clock for vadc */ + imx_clk_set_parent(clks[IMX6SX_CLK_VID_SEL], clks[IMX6SX_CLK_PLL3_USB_OTG]); /* Update gpu clock from default 528M to 720M */ - clk_set_parent(clks[IMX6SX_CLK_GPU_CORE_SEL], clks[IMX6SX_CLK_PLL3_PFD0]); - clk_set_parent(clks[IMX6SX_CLK_GPU_AXI_SEL], clks[IMX6SX_CLK_PLL3_PFD0]); + imx_clk_set_parent(clks[IMX6SX_CLK_GPU_CORE_SEL], clks[IMX6SX_CLK_PLL3_PFD0]); + imx_clk_set_parent(clks[IMX6SX_CLK_GPU_AXI_SEL], clks[IMX6SX_CLK_PLL3_PFD0]); - clk_set_parent(clks[IMX6SX_CLK_QSPI1_SEL], clks[IMX6SX_CLK_PLL2_BUS]); - clk_set_parent(clks[IMX6SX_CLK_QSPI2_SEL], clks[IMX6SX_CLK_PLL2_BUS]); + imx_clk_set_parent(clks[IMX6SX_CLK_QSPI1_SEL], clks[IMX6SX_CLK_PLL2_BUS]); + imx_clk_set_parent(clks[IMX6SX_CLK_QSPI2_SEL], clks[IMX6SX_CLK_PLL2_BUS]); + /* Set the UART parent if needed. */ + if (uart_from_osc) + imx_clk_set_parent(clks[IMX6SX_CLK_UART_SEL], clks[IMX6SX_CLK_OSC]); + + if (!imx_src_is_m4_enabled()) + /* default parent of can_sel clock is invalid, manually set it here */ + imx_clk_set_parent(clks[IMX6SX_CLK_CAN_SEL], clks[IMX6SX_CLK_PLL3_60M]); + + for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) + imx_clk_prepare_enable(clks[clks_init_on[i]]); imx_register_uart_clocks(uart_clks); } CLK_OF_DECLARE(imx6sx, "fsl,imx6sx-ccm", imx6sx_clocks_init); + +int imx_update_shared_mem(struct clk_hw *hw, bool enable) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(clks_shared); i++) { + if (shared_mem->imx_clk[i].self == hw->clk) + break; + } + + if (i >= ARRAY_SIZE(clks_shared)) + return 1; + + /* update ca9 clk status in shared memory */ + if (enable) + shared_mem->imx_clk[i].ca9_enabled = 1; + else + shared_mem->imx_clk[i].ca9_enabled = 0; + + if (shared_mem->imx_clk[i].cm4_enabled == 0) + return 1; + + return 0; +} + +static int __init imx_amp_power_init(void) +{ + int i; + void __iomem *shared_mem_base; + + if (!(imx_src_is_m4_enabled() && clk_on_imx6sx())) + return 0; + + amp_power_mutex = imx_sema4_mutex_create(0, MCC_POWER_SHMEM_NUMBER); + + shared_mem_base = ioremap_nocache(shared_mem_paddr, shared_mem_size); + + if (!amp_power_mutex) { + pr_err("Failed to create sema4 mutex!\n"); + return 0; + } + + shared_mem = (struct imx_shared_mem *)shared_mem_base; + + for (i = 0; i < ARRAY_SIZE(clks_shared); i++) { + shared_mem->imx_clk[i].self = clks[clks_shared[i]]; + shared_mem->imx_clk[i].ca9_enabled = 1; + pr_debug("%d: name %s, addr 0x%x\n", i, + __clk_get_name(shared_mem->imx_clk[i].self), + (u32)&(shared_mem->imx_clk[i])); + } + /* enable amp power management */ + shared_mem->ca9_valid = SHARED_MEM_MAGIC_NUMBER; + + pr_info("A9-M4 sema4 num %d, A9-M4 magic number 0x%x - 0x%x.\n", + amp_power_mutex->gate_num, shared_mem->ca9_valid, + shared_mem->cm4_valid); + + return 0; +} +late_initcall(imx_amp_power_init); |