projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f5b35d0b | 1 | /* |
| 34cfcd26 | 2 | * Atheros AR913X/AR933X SoC built-in WMAC device support |
| f5b35d0b | 3 | * |
| 574d6e70 | 4 | * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com> |
| 34cfcd26 | 5 | * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org> |
| f5b35d0b GJ |
6 | * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> |
| 7 | * | |
| 574d6e70 GJ |
8 | * Parts of this file are based on Atheros 2.6.15/2.6.31 BSP |
| 9 | * | |
| f5b35d0b GJ |
10 | * This program is free software; you can redistribute it and/or modify it |
| 11 | * under the terms of the GNU General Public License version 2 as published | |
| 12 | * by the Free Software Foundation. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/init.h> | |
| 16 | #include <linux/delay.h> | |
| 17 | #include <linux/irq.h> | |
| 18 | #include <linux/platform_device.h> | |
| 19 | #include <linux/ath9k_platform.h> | |
| 20 | ||
| 21 | #include <asm/mach-ath79/ath79.h> | |
| 22 | #include <asm/mach-ath79/ar71xx_regs.h> | |
| 009b9d52 | 23 | #include "dev-wmac.h" |
| f5b35d0b | 24 | |
| 67b0f0f1 | 25 | static struct ath9k_platform_data ath79_wmac_data; |
| f5b35d0b | 26 | |
| 67b0f0f1 | 27 | static struct resource ath79_wmac_resources[] = { |
| f5b35d0b | 28 | { |
| 6903bb49 | 29 | /* .start and .end fields are filled dynamically */ |
| f5b35d0b GJ |
30 | .flags = IORESOURCE_MEM, |
| 31 | }, { | |
| 574d6e70 | 32 | /* .start and .end fields are filled dynamically */ |
| f5b35d0b GJ |
33 | .flags = IORESOURCE_IRQ, |
| 34 | }, | |
| 35 | }; | |
| 36 | ||
| 67b0f0f1 | 37 | static struct platform_device ath79_wmac_device = { |
| f5b35d0b GJ |
38 | .name = "ath9k", |
| 39 | .id = -1, | |
| 67b0f0f1 GJ |
40 | .resource = ath79_wmac_resources, |
| 41 | .num_resources = ARRAY_SIZE(ath79_wmac_resources), | |
| f5b35d0b | 42 | .dev = { |
| 67b0f0f1 | 43 | .platform_data = &ath79_wmac_data, |
| f5b35d0b GJ |
44 | }, |
| 45 | }; | |
| 46 | ||
| 6903bb49 | 47 | static void __init ar913x_wmac_setup(void) |
| f5b35d0b | 48 | { |
| f5b35d0b GJ |
49 | /* reset the WMAC */ |
| 50 | ath79_device_reset_set(AR913X_RESET_AMBA2WMAC); | |
| 51 | mdelay(10); | |
| 52 | ||
| 53 | ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC); | |
| 54 | mdelay(10); | |
| 55 | ||
| 6903bb49 GJ |
56 | ath79_wmac_resources[0].start = AR913X_WMAC_BASE; |
| 57 | ath79_wmac_resources[0].end = AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1; | |
| 574d6e70 GJ |
58 | ath79_wmac_resources[1].start = ATH79_CPU_IRQ_IP2; |
| 59 | ath79_wmac_resources[1].end = ATH79_CPU_IRQ_IP2; | |
| 6903bb49 GJ |
60 | } |
| 61 | ||
| 34cfcd26 GJ |
62 | |
| 63 | static int ar933x_wmac_reset(void) | |
| 64 | { | |
| 34cfcd26 | 65 | ath79_device_reset_set(AR933X_RESET_WMAC); |
| de14ca6a | 66 | ath79_device_reset_clear(AR933X_RESET_WMAC); |
| 34cfcd26 GJ |
67 | |
| 68 | return 0; | |
| 69 | } | |
| 70 | ||
| 71 | static int ar933x_r1_get_wmac_revision(void) | |
| 72 | { | |
| 73 | return ath79_soc_rev; | |
| 74 | } | |
| 75 | ||
| 76 | static void __init ar933x_wmac_setup(void) | |
| 77 | { | |
| 78 | u32 t; | |
| 79 | ||
| 80 | ar933x_wmac_reset(); | |
| 81 | ||
| 82 | ath79_wmac_device.name = "ar933x_wmac"; | |
| 83 | ||
| 84 | ath79_wmac_resources[0].start = AR933X_WMAC_BASE; | |
| 85 | ath79_wmac_resources[0].end = AR933X_WMAC_BASE + AR933X_WMAC_SIZE - 1; | |
| 574d6e70 GJ |
86 | ath79_wmac_resources[1].start = ATH79_CPU_IRQ_IP2; |
| 87 | ath79_wmac_resources[1].end = ATH79_CPU_IRQ_IP2; | |
| 34cfcd26 GJ |
88 | |
| 89 | t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP); | |
| 90 | if (t & AR933X_BOOTSTRAP_REF_CLK_40) | |
| 91 | ath79_wmac_data.is_clk_25mhz = false; | |
| 92 | else | |
| 93 | ath79_wmac_data.is_clk_25mhz = true; | |
| 94 | ||
| 95 | if (ath79_soc_rev == 1) | |
| 96 | ath79_wmac_data.get_mac_revision = ar933x_r1_get_wmac_revision; | |
| 97 | ||
| 98 | ath79_wmac_data.external_reset = ar933x_wmac_reset; | |
| 99 | } | |
| 100 | ||
| 574d6e70 GJ |
101 | static void ar934x_wmac_setup(void) |
| 102 | { | |
| 103 | u32 t; | |
| 104 | ||
| 105 | ath79_wmac_device.name = "ar934x_wmac"; | |
| 106 | ||
| 107 | ath79_wmac_resources[0].start = AR934X_WMAC_BASE; | |
| 108 | ath79_wmac_resources[0].end = AR934X_WMAC_BASE + AR934X_WMAC_SIZE - 1; | |
| 109 | ath79_wmac_resources[1].start = ATH79_IP2_IRQ(1); | |
| 110 | ath79_wmac_resources[1].start = ATH79_IP2_IRQ(1); | |
| 111 | ||
| 112 | t = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP); | |
| 113 | if (t & AR934X_BOOTSTRAP_REF_CLK_40) | |
| 114 | ath79_wmac_data.is_clk_25mhz = false; | |
| 115 | else | |
| 116 | ath79_wmac_data.is_clk_25mhz = true; | |
| 117 | } | |
| 118 | ||
| 6903bb49 GJ |
119 | void __init ath79_register_wmac(u8 *cal_data) |
| 120 | { | |
| 121 | if (soc_is_ar913x()) | |
| 122 | ar913x_wmac_setup(); | |
| 87b43457 | 123 | else if (soc_is_ar933x()) |
| 34cfcd26 | 124 | ar933x_wmac_setup(); |
| 574d6e70 GJ |
125 | else if (soc_is_ar934x()) |
| 126 | ar934x_wmac_setup(); | |
| 6903bb49 GJ |
127 | else |
| 128 | BUG(); | |
| 129 | ||
| 130 | if (cal_data) | |
| 131 | memcpy(ath79_wmac_data.eeprom_data, cal_data, | |
| 132 | sizeof(ath79_wmac_data.eeprom_data)); | |
| 133 | ||
| 67b0f0f1 | 134 | platform_device_register(&ath79_wmac_device); |
| f5b35d0b | 135 | } |