diff options
Diffstat (limited to 'arch/arm/mach-imx/clk-imx6q.c')
| -rw-r--r-- | arch/arm/mach-imx/clk-imx6q.c | 53 |
1 files changed, 29 insertions, 24 deletions
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 4e3148ce852d..86567d980b07 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -199,7 +199,8 @@ static const char *pcie_axi_sels[] = { "axi", "ahb", }; static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_post_div", }; static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *enfc_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", }; -static const char *emi_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *emi_sels[] = { "pll2_pfd2_396m", "pll3_usb_otg", "axi", "pll2_pfd0_352m", }; +static const char *emi_slow_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *vdo_axi_sels[] = { "axi", "ahb", }; static const char *vpu_axi_sels[] = { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div", @@ -238,7 +239,7 @@ enum mx6q_clks { pll4_audio, pll5_video, pll8_mlb, pll7_usb_host, pll6_enet, ssi1_ipg, ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5, sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate, - usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, clk_max + usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow, clk_max }; static struct clk *clk[clk_max]; @@ -270,27 +271,16 @@ static struct clk_div_table video_div_table[] = { { } }; -int __init mx6q_clocks_init(void) +static void __init imx6q_clocks_init(struct device_node *ccm_node) { struct device_node *np; void __iomem *base; int i, irq; clk[dummy] = imx_clk_fixed("dummy", 0); - - /* retrieve the freqency of fixed clocks from device tree */ - for_each_compatible_node(np, NULL, "fixed-clock") { - u32 rate; - if (of_property_read_u32(np, "clock-frequency", &rate)) - continue; - - if (of_device_is_compatible(np, "fsl,imx-ckil")) - clk[ckil] = imx_clk_fixed("ckil", rate); - else if (of_device_is_compatible(np, "fsl,imx-ckih1")) - clk[ckih] = imx_clk_fixed("ckih", rate); - else if (of_device_is_compatible(np, "fsl,imx-osc")) - clk[osc] = imx_clk_fixed("osc", rate); - } + clk[ckil] = imx_obtain_fixed_clock("ckil", 0); + clk[ckih] = imx_obtain_fixed_clock("ckih1", 0); + clk[osc] = imx_obtain_fixed_clock("osc", 0); np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop"); base = of_iomap(np, 0); @@ -312,7 +302,6 @@ int __init mx6q_clocks_init(void) clk[pll5_video] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5_video", "osc", base + 0xa0, 0x7f); clk[pll6_enet] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6_enet", "osc", base + 0xe0, 0x3); clk[pll7_usb_host] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7_usb_host","osc", base + 0x20, 0x3); - clk[pll8_mlb] = imx_clk_pllv3(IMX_PLLV3_MLB, "pll8_mlb", "osc", base + 0xd0, 0x0); /* * Bit 20 is the reserved and read-only bit, we do this only for: @@ -360,7 +349,7 @@ int __init mx6q_clocks_init(void) 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); 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); - np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ccm"); + np = ccm_node; base = of_iomap(np, 0); WARN_ON(!base); ccm_base = base; @@ -404,7 +393,7 @@ int __init mx6q_clocks_init(void) clk[usdhc4_sel] = imx_clk_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); clk[enfc_sel] = imx_clk_mux("enfc_sel", base + 0x2c, 16, 2, enfc_sels, ARRAY_SIZE(enfc_sels)); clk[emi_sel] = imx_clk_mux("emi_sel", base + 0x1c, 27, 2, emi_sels, ARRAY_SIZE(emi_sels)); - clk[emi_slow_sel] = imx_clk_mux("emi_slow_sel", base + 0x1c, 29, 2, emi_sels, ARRAY_SIZE(emi_sels)); + clk[emi_slow_sel] = imx_clk_mux("emi_slow_sel", base + 0x1c, 29, 2, emi_slow_sels, ARRAY_SIZE(emi_slow_sels)); clk[vdo_axi_sel] = imx_clk_mux("vdo_axi_sel", base + 0x18, 11, 1, vdo_axi_sels, ARRAY_SIZE(vdo_axi_sels)); clk[vpu_axi_sel] = imx_clk_mux("vpu_axi_sel", base + 0x18, 14, 2, vpu_axi_sels, ARRAY_SIZE(vpu_axi_sels)); clk[cko1_sel] = imx_clk_mux("cko1_sel", base + 0x60, 0, 4, cko1_sels, ARRAY_SIZE(cko1_sels)); @@ -481,7 +470,14 @@ int __init mx6q_clocks_init(void) clk[esai] = imx_clk_gate2("esai", "esai_podf", base + 0x6c, 16); clk[gpt_ipg] = imx_clk_gate2("gpt_ipg", "ipg", base + 0x6c, 20); clk[gpt_ipg_per] = imx_clk_gate2("gpt_ipg_per", "ipg_per", base + 0x6c, 22); - clk[gpu2d_core] = imx_clk_gate2("gpu2d_core", "gpu2d_core_podf", base + 0x6c, 24); + if (cpu_is_imx6dl()) + /* + * The multiplexer and divider of imx6q clock gpu3d_shader get + * redefined/reused as gpu2d_core_sel and gpu2d_core_podf on imx6dl. + */ + clk[gpu2d_core] = imx_clk_gate2("gpu2d_core", "gpu3d_shader", base + 0x6c, 24); + else + clk[gpu2d_core] = imx_clk_gate2("gpu2d_core", "gpu2d_core_podf", base + 0x6c, 24); clk[gpu3d_core] = imx_clk_gate2("gpu3d_core", "gpu3d_core_podf", base + 0x6c, 26); clk[hdmi_iahb] = imx_clk_gate2("hdmi_iahb", "ahb", base + 0x70, 0); clk[hdmi_isfr] = imx_clk_gate2("hdmi_isfr", "pll3_pfd1_540m", base + 0x70, 4); @@ -499,7 +495,14 @@ int __init mx6q_clocks_init(void) clk[ldb_di1] = imx_clk_gate2("ldb_di1", "ldb_di1_podf", base + 0x74, 14); clk[ipu2_di1] = imx_clk_gate2("ipu2_di1", "ipu2_di1_sel", base + 0x74, 10); clk[hsi_tx] = imx_clk_gate2("hsi_tx", "hsi_tx_podf", base + 0x74, 16); - clk[mlb] = imx_clk_gate2("mlb", "axi", base + 0x74, 18); + if (cpu_is_imx6dl()) + /* + * The multiplexer and divider of the imx6q clock gpu2d get + * redefined/reused as mlb_sys_sel and mlb_sys_clk_podf on imx6dl. + */ + clk[mlb] = imx_clk_gate2("mlb", "gpu2d_core_podf", base + 0x74, 18); + else + clk[mlb] = imx_clk_gate2("mlb", "axi", base + 0x74, 18); clk[mmdc_ch0_axi] = imx_clk_gate2("mmdc_ch0_axi", "mmdc_ch0_axi_podf", base + 0x74, 20); clk[mmdc_ch1_axi] = imx_clk_gate2("mmdc_ch1_axi", "mmdc_ch1_axi_podf", base + 0x74, 22); clk[ocram] = imx_clk_gate2("ocram", "ahb", base + 0x74, 28); @@ -528,6 +531,7 @@ int __init mx6q_clocks_init(void) clk[usdhc2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); clk[usdhc3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); clk[usdhc4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); + clk[eim_slow] = imx_clk_gate2("eim_slow", "emi_slow_podf", base + 0x80, 10); clk[vdo_axi] = imx_clk_gate2("vdo_axi", "vdo_axi_sel", base + 0x80, 12); clk[vpu_axi] = imx_clk_gate2("vpu_axi", "vpu_axi_podf", base + 0x80, 14); clk[cko1] = imx_clk_gate("cko1", "cko1_podf", base + 0x60, 7); @@ -547,6 +551,8 @@ int __init mx6q_clocks_init(void) clk_register_clkdev(clk[ahb], "ahb", NULL); clk_register_clkdev(clk[cko1], "cko1", NULL); clk_register_clkdev(clk[arm], NULL, "cpu0"); + clk_register_clkdev(clk[pll4_post_div], "pll4_post_div", NULL); + clk_register_clkdev(clk[pll4_audio], "pll4_audio", NULL); if (imx6q_revision() != IMX_CHIP_REVISION_1_0) { clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]); @@ -576,6 +582,5 @@ int __init mx6q_clocks_init(void) WARN_ON(!base); irq = irq_of_parse_and_map(np, 0); mxc_timer_init(base, irq); - - return 0; } +CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init); |