projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 9ed9c07d UKK |
1 | /* |
| 2 | * Copyright (C) 2013 Pengutronix | |
| 3 | * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify it under | |
| 6 | * the terms of the GNU General Public License version 2 as published by the | |
| 7 | * Free Software Foundation. | |
| 8 | */ | |
| 9 | #include <linux/clk.h> | |
| 10 | #include <linux/io.h> | |
| 11 | #include <linux/clk-provider.h> | |
| 12 | #include <linux/of.h> | |
| 13 | #include <linux/of_address.h> | |
| 14 | ||
| 15 | #include <dt-bindings/clock/efm32-cmu.h> | |
| 16 | ||
| 17 | #define CMU_HFPERCLKEN0 0x44 | |
| 18 | ||
| 19 | static struct clk *clk[37]; | |
| 20 | static struct clk_onecell_data clk_data = { | |
| 21 | .clks = clk, | |
| 22 | .clk_num = ARRAY_SIZE(clk), | |
| 23 | }; | |
| 24 | ||
| 25 | static int __init efm32gg_cmu_init(struct device_node *np) | |
| 26 | { | |
| 27 | int i; | |
| 28 | void __iomem *base; | |
| 29 | ||
| 30 | for (i = 0; i < ARRAY_SIZE(clk); ++i) | |
| 31 | clk[i] = ERR_PTR(-ENOENT); | |
| 32 | ||
| 33 | base = of_iomap(np, 0); | |
| 34 | if (!base) { | |
| 35 | pr_warn("Failed to map address range for efm32gg,cmu node\n"); | |
| 36 | return -EADDRNOTAVAIL; | |
| 37 | } | |
| 38 | ||
| 39 | clk[clk_HFXO] = clk_register_fixed_rate(NULL, "HFXO", NULL, | |
| 40 | CLK_IS_ROOT, 48000000); | |
| 41 | ||
| 42 | clk[clk_HFPERCLKUSART0] = clk_register_gate(NULL, "HFPERCLK.USART0", | |
| 43 | "HFXO", 0, base + CMU_HFPERCLKEN0, 0, 0, NULL); | |
| 44 | clk[clk_HFPERCLKUSART1] = clk_register_gate(NULL, "HFPERCLK.USART1", | |
| 45 | "HFXO", 0, base + CMU_HFPERCLKEN0, 1, 0, NULL); | |
| 46 | clk[clk_HFPERCLKUSART2] = clk_register_gate(NULL, "HFPERCLK.USART2", | |
| 47 | "HFXO", 0, base + CMU_HFPERCLKEN0, 2, 0, NULL); | |
| 48 | clk[clk_HFPERCLKUART0] = clk_register_gate(NULL, "HFPERCLK.UART0", | |
| 49 | "HFXO", 0, base + CMU_HFPERCLKEN0, 3, 0, NULL); | |
| 50 | clk[clk_HFPERCLKUART1] = clk_register_gate(NULL, "HFPERCLK.UART1", | |
| 51 | "HFXO", 0, base + CMU_HFPERCLKEN0, 4, 0, NULL); | |
| 52 | clk[clk_HFPERCLKTIMER0] = clk_register_gate(NULL, "HFPERCLK.TIMER0", | |
| 53 | "HFXO", 0, base + CMU_HFPERCLKEN0, 5, 0, NULL); | |
| 54 | clk[clk_HFPERCLKTIMER1] = clk_register_gate(NULL, "HFPERCLK.TIMER1", | |
| 55 | "HFXO", 0, base + CMU_HFPERCLKEN0, 6, 0, NULL); | |
| 56 | clk[clk_HFPERCLKTIMER2] = clk_register_gate(NULL, "HFPERCLK.TIMER2", | |
| 57 | "HFXO", 0, base + CMU_HFPERCLKEN0, 7, 0, NULL); | |
| 58 | clk[clk_HFPERCLKTIMER3] = clk_register_gate(NULL, "HFPERCLK.TIMER3", | |
| 59 | "HFXO", 0, base + CMU_HFPERCLKEN0, 8, 0, NULL); | |
| 60 | clk[clk_HFPERCLKACMP0] = clk_register_gate(NULL, "HFPERCLK.ACMP0", | |
| 61 | "HFXO", 0, base + CMU_HFPERCLKEN0, 9, 0, NULL); | |
| 62 | clk[clk_HFPERCLKACMP1] = clk_register_gate(NULL, "HFPERCLK.ACMP1", | |
| 63 | "HFXO", 0, base + CMU_HFPERCLKEN0, 10, 0, NULL); | |
| 64 | clk[clk_HFPERCLKI2C0] = clk_register_gate(NULL, "HFPERCLK.I2C0", | |
| 65 | "HFXO", 0, base + CMU_HFPERCLKEN0, 11, 0, NULL); | |
| 66 | clk[clk_HFPERCLKI2C1] = clk_register_gate(NULL, "HFPERCLK.I2C1", | |
| 67 | "HFXO", 0, base + CMU_HFPERCLKEN0, 12, 0, NULL); | |
| 68 | clk[clk_HFPERCLKGPIO] = clk_register_gate(NULL, "HFPERCLK.GPIO", | |
| 69 | "HFXO", 0, base + CMU_HFPERCLKEN0, 13, 0, NULL); | |
| 70 | clk[clk_HFPERCLKVCMP] = clk_register_gate(NULL, "HFPERCLK.VCMP", | |
| 71 | "HFXO", 0, base + CMU_HFPERCLKEN0, 14, 0, NULL); | |
| 72 | clk[clk_HFPERCLKPRS] = clk_register_gate(NULL, "HFPERCLK.PRS", | |
| 73 | "HFXO", 0, base + CMU_HFPERCLKEN0, 15, 0, NULL); | |
| 74 | clk[clk_HFPERCLKADC0] = clk_register_gate(NULL, "HFPERCLK.ADC0", | |
| 75 | "HFXO", 0, base + CMU_HFPERCLKEN0, 16, 0, NULL); | |
| 76 | clk[clk_HFPERCLKDAC0] = clk_register_gate(NULL, "HFPERCLK.DAC0", | |
| 77 | "HFXO", 0, base + CMU_HFPERCLKEN0, 17, 0, NULL); | |
| 78 | ||
| 79 | return of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); | |
| 80 | } | |
| 81 | CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init); |