diff options
Diffstat (limited to 'arch/mips/generic/board-ingenic.c')
| -rw-r--r-- | arch/mips/generic/board-ingenic.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/mips/generic/board-ingenic.c b/arch/mips/generic/board-ingenic.c index 0cec0bea13d6..3f44f14bdb33 100644 --- a/arch/mips/generic/board-ingenic.c +++ b/arch/mips/generic/board-ingenic.c @@ -7,6 +7,8 @@ * Copyright (C) 2020 Paul Cercueil <paul@crapouillou.net> */ +#include <linux/clk.h> +#include <linux/of.h> #include <linux/of_address.h> #include <linux/of_fdt.h> #include <linux/pm.h> @@ -21,6 +23,10 @@ static __init char *ingenic_get_system_type(unsigned long machtype) { switch (machtype) { + case MACH_INGENIC_X2100: + return "X2100"; + case MACH_INGENIC_X2000H: + return "X2000H"; case MACH_INGENIC_X2000E: return "X2000E"; case MACH_INGENIC_X2000: @@ -37,8 +43,18 @@ static __init char *ingenic_get_system_type(unsigned long machtype) return "JZ4775"; case MACH_INGENIC_JZ4770: return "JZ4770"; + case MACH_INGENIC_JZ4760B: + return "JZ4760B"; + case MACH_INGENIC_JZ4760: + return "JZ4760"; + case MACH_INGENIC_JZ4755: + return "JZ4755"; + case MACH_INGENIC_JZ4750: + return "JZ4750"; case MACH_INGENIC_JZ4725B: return "JZ4725B"; + case MACH_INGENIC_JZ4730: + return "JZ4730"; default: return "JZ4740"; } @@ -61,8 +77,13 @@ static __init const void *ingenic_fixup_fdt(const void *fdt, const void *match_d } static const struct of_device_id ingenic_of_match[] __initconst = { + { .compatible = "ingenic,jz4730", .data = (void *)MACH_INGENIC_JZ4730 }, { .compatible = "ingenic,jz4740", .data = (void *)MACH_INGENIC_JZ4740 }, { .compatible = "ingenic,jz4725b", .data = (void *)MACH_INGENIC_JZ4725B }, + { .compatible = "ingenic,jz4750", .data = (void *)MACH_INGENIC_JZ4750 }, + { .compatible = "ingenic,jz4755", .data = (void *)MACH_INGENIC_JZ4755 }, + { .compatible = "ingenic,jz4760", .data = (void *)MACH_INGENIC_JZ4760 }, + { .compatible = "ingenic,jz4760b", .data = (void *)MACH_INGENIC_JZ4760B }, { .compatible = "ingenic,jz4770", .data = (void *)MACH_INGENIC_JZ4770 }, { .compatible = "ingenic,jz4775", .data = (void *)MACH_INGENIC_JZ4775 }, { .compatible = "ingenic,jz4780", .data = (void *)MACH_INGENIC_JZ4780 }, @@ -71,6 +92,8 @@ static const struct of_device_id ingenic_of_match[] __initconst = { { .compatible = "ingenic,x1830", .data = (void *)MACH_INGENIC_X1830 }, { .compatible = "ingenic,x2000", .data = (void *)MACH_INGENIC_X2000 }, { .compatible = "ingenic,x2000e", .data = (void *)MACH_INGENIC_X2000E }, + { .compatible = "ingenic,x2000h", .data = (void *)MACH_INGENIC_X2000H }, + { .compatible = "ingenic,x2100", .data = (void *)MACH_INGENIC_X2100 }, {} }; @@ -108,10 +131,36 @@ static const struct platform_suspend_ops ingenic_pm_ops __maybe_unused = { static int __init ingenic_pm_init(void) { + struct device_node *cpu_node; + struct clk *cpu0_clk; + int ret; + if (boot_cpu_type() == CPU_XBURST) { if (IS_ENABLED(CONFIG_PM_SLEEP)) suspend_set_ops(&ingenic_pm_ops); _machine_halt = ingenic_halt; + + /* + * Unconditionally enable the clock for the first CPU. + * This makes sure that the PLL that feeds the CPU won't be + * stopped while the kernel is running. + */ + cpu_node = of_get_cpu_node(0, NULL); + if (!cpu_node) { + pr_err("Unable to get CPU node\n"); + } else { + cpu0_clk = of_clk_get(cpu_node, 0); + if (IS_ERR(cpu0_clk)) { + pr_err("Unable to get CPU0 clock\n"); + return PTR_ERR(cpu0_clk); + } + + ret = clk_prepare_enable(cpu0_clk); + if (ret) { + pr_err("Unable to enable CPU0 clock\n"); + return ret; + } + } } return 0; |