Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2012 Atmel Corporation |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 4 | */ |
| 5 | |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 6 | #include <asm/arch/at91_common.h> |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 7 | #include <asm/arch/clk.h> |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 8 | #include <asm/arch/gpio.h> |
| 9 | #include <asm/io.h> |
| 10 | |
| 11 | unsigned int get_chip_id(void) |
| 12 | { |
| 13 | /* The 0x40 is the offset of cidr in DBGU */ |
| 14 | return readl(ATMEL_BASE_DBGU + 0x40) & ~ARCH_ID_VERSION_MASK; |
| 15 | } |
| 16 | |
| 17 | unsigned int get_extension_chip_id(void) |
| 18 | { |
| 19 | /* The 0x44 is the offset of exid in DBGU */ |
| 20 | return readl(ATMEL_BASE_DBGU + 0x44); |
| 21 | } |
| 22 | |
| 23 | unsigned int has_emac1() |
| 24 | { |
| 25 | return cpu_is_at91sam9x25(); |
| 26 | } |
| 27 | |
| 28 | unsigned int has_emac0() |
| 29 | { |
| 30 | return !(cpu_is_at91sam9g15()); |
| 31 | } |
| 32 | |
| 33 | unsigned int has_lcdc() |
| 34 | { |
| 35 | return cpu_is_at91sam9g15() || cpu_is_at91sam9g35() |
| 36 | || cpu_is_at91sam9x35(); |
| 37 | } |
| 38 | |
| 39 | char *get_cpu_name() |
| 40 | { |
| 41 | unsigned int extension_id = get_extension_chip_id(); |
| 42 | |
| 43 | if (cpu_is_at91sam9x5()) { |
| 44 | switch (extension_id) { |
| 45 | case ARCH_EXID_AT91SAM9G15: |
Bo Shen | c3575b3 | 2013-03-07 21:23:22 +0000 | [diff] [blame] | 46 | return "AT91SAM9G15"; |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 47 | case ARCH_EXID_AT91SAM9G25: |
Bo Shen | c3575b3 | 2013-03-07 21:23:22 +0000 | [diff] [blame] | 48 | return "AT91SAM9G25"; |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 49 | case ARCH_EXID_AT91SAM9G35: |
Bo Shen | c3575b3 | 2013-03-07 21:23:22 +0000 | [diff] [blame] | 50 | return "AT91SAM9G35"; |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 51 | case ARCH_EXID_AT91SAM9X25: |
Bo Shen | c3575b3 | 2013-03-07 21:23:22 +0000 | [diff] [blame] | 52 | return "AT91SAM9X25"; |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 53 | case ARCH_EXID_AT91SAM9X35: |
Bo Shen | c3575b3 | 2013-03-07 21:23:22 +0000 | [diff] [blame] | 54 | return "AT91SAM9X35"; |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 55 | default: |
Bo Shen | c3575b3 | 2013-03-07 21:23:22 +0000 | [diff] [blame] | 56 | return "Unknown CPU type"; |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 57 | } |
| 58 | } else { |
Bo Shen | c3575b3 | 2013-03-07 21:23:22 +0000 | [diff] [blame] | 59 | return "Unknown CPU type"; |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 60 | } |
| 61 | } |
| 62 | |
| 63 | void at91_seriald_hw_init(void) |
| 64 | { |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 65 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 9, 0); /* DRXD */ |
| 66 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 10, 1); /* DTXD */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 67 | |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 68 | at91_periph_clk_enable(ATMEL_ID_SYS); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 69 | } |
| 70 | |
| 71 | void at91_serial0_hw_init(void) |
| 72 | { |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 73 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 0, 1); /* TXD */ |
| 74 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 1, 0); /* RXD */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 75 | |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 76 | at91_periph_clk_enable(ATMEL_ID_USART0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | void at91_serial1_hw_init(void) |
| 80 | { |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 81 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 5, 1); /* TXD */ |
| 82 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 6, 0); /* RXD */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 83 | |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 84 | at91_periph_clk_enable(ATMEL_ID_USART1); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | void at91_serial2_hw_init(void) |
| 88 | { |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 89 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 7, 1); /* TXD */ |
| 90 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 8, 0); /* RXD */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 91 | |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 92 | at91_periph_clk_enable(ATMEL_ID_USART2); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 93 | } |
| 94 | |
Wu, Josh | e32c661 | 2012-09-13 22:22:05 +0000 | [diff] [blame] | 95 | void at91_mci_hw_init(void) |
| 96 | { |
| 97 | /* Initialize the MCI0 */ |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 98 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 17, 1); /* MCCK */ |
| 99 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 16, 1); /* MCCDA */ |
| 100 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 15, 1); /* MCDA0 */ |
| 101 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 18, 1); /* MCDA1 */ |
| 102 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 19, 1); /* MCDA2 */ |
| 103 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 20, 1); /* MCDA3 */ |
Wu, Josh | e32c661 | 2012-09-13 22:22:05 +0000 | [diff] [blame] | 104 | |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 105 | at91_periph_clk_enable(ATMEL_ID_HSMCI0); |
Wu, Josh | e32c661 | 2012-09-13 22:22:05 +0000 | [diff] [blame] | 106 | } |
| 107 | |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 108 | #ifdef CONFIG_ATMEL_SPI |
| 109 | void at91_spi0_hw_init(unsigned long cs_mask) |
| 110 | { |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 111 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 11, 0); /* SPI0_MISO */ |
| 112 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 12, 0); /* SPI0_MOSI */ |
| 113 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 13, 0); /* SPI0_SPCK */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 114 | |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 115 | at91_periph_clk_enable(ATMEL_ID_SPI0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 116 | |
| 117 | if (cs_mask & (1 << 0)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 118 | at91_pio3_set_a_periph(AT91_PIO_PORTA, 14, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 119 | if (cs_mask & (1 << 1)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 120 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 7, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 121 | if (cs_mask & (1 << 2)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 122 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 1, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 123 | if (cs_mask & (1 << 3)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 124 | at91_pio3_set_b_periph(AT91_PIO_PORTB, 3, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 125 | if (cs_mask & (1 << 4)) |
| 126 | at91_set_pio_output(AT91_PIO_PORTA, 14, 0); |
| 127 | if (cs_mask & (1 << 5)) |
| 128 | at91_set_pio_output(AT91_PIO_PORTA, 7, 0); |
| 129 | if (cs_mask & (1 << 6)) |
| 130 | at91_set_pio_output(AT91_PIO_PORTA, 1, 0); |
| 131 | if (cs_mask & (1 << 7)) |
| 132 | at91_set_pio_output(AT91_PIO_PORTB, 3, 0); |
| 133 | } |
| 134 | |
| 135 | void at91_spi1_hw_init(unsigned long cs_mask) |
| 136 | { |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 137 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 21, 0); /* SPI1_MISO */ |
| 138 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 22, 0); /* SPI1_MOSI */ |
| 139 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 23, 0); /* SPI1_SPCK */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 140 | |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 141 | at91_periph_clk_enable(ATMEL_ID_SPI1); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 142 | |
| 143 | if (cs_mask & (1 << 0)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 144 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 8, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 145 | if (cs_mask & (1 << 1)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 146 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 0, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 147 | if (cs_mask & (1 << 2)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 148 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 31, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 149 | if (cs_mask & (1 << 3)) |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 150 | at91_pio3_set_b_periph(AT91_PIO_PORTA, 30, 0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 151 | if (cs_mask & (1 << 4)) |
| 152 | at91_set_pio_output(AT91_PIO_PORTA, 8, 0); |
| 153 | if (cs_mask & (1 << 5)) |
| 154 | at91_set_pio_output(AT91_PIO_PORTA, 0, 0); |
| 155 | if (cs_mask & (1 << 6)) |
| 156 | at91_set_pio_output(AT91_PIO_PORTA, 31, 0); |
| 157 | if (cs_mask & (1 << 7)) |
| 158 | at91_set_pio_output(AT91_PIO_PORTA, 30, 0); |
| 159 | } |
| 160 | #endif |
| 161 | |
Tom Rini | ceed5d2 | 2017-05-12 22:33:27 -0400 | [diff] [blame] | 162 | #if defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_EHCI_HCD) |
Richard Genoud | b762a9c | 2012-11-29 23:18:32 +0000 | [diff] [blame] | 163 | void at91_uhp_hw_init(void) |
| 164 | { |
| 165 | /* Enable VBus on UHP ports */ |
| 166 | at91_set_pio_output(AT91_PIO_PORTD, 18, 0); /* port A */ |
| 167 | at91_set_pio_output(AT91_PIO_PORTD, 19, 0); /* port B */ |
| 168 | #if defined(CONFIG_USB_OHCI_NEW) |
| 169 | /* port C is OHCI only */ |
| 170 | at91_set_pio_output(AT91_PIO_PORTD, 20, 0); /* port C */ |
| 171 | #endif |
| 172 | } |
| 173 | #endif |
| 174 | |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 175 | #ifdef CONFIG_MACB |
| 176 | void at91_macb_hw_init(void) |
| 177 | { |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 178 | if (has_emac0()) { |
| 179 | /* Enable EMAC0 clock */ |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 180 | at91_periph_clk_enable(ATMEL_ID_EMAC0); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 181 | /* EMAC0 pins setup */ |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 182 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 4, 0); /* ETXCK */ |
| 183 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 3, 0); /* ERXDV */ |
| 184 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 0, 0); /* ERX0 */ |
| 185 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 1, 0); /* ERX1 */ |
| 186 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 2, 0); /* ERXER */ |
| 187 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 7, 0); /* ETXEN */ |
| 188 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 9, 0); /* ETX0 */ |
| 189 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 10, 0); /* ETX1 */ |
| 190 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 5, 0); /* EMDIO */ |
| 191 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 6, 0); /* EMDC */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | if (has_emac1()) { |
| 195 | /* Enable EMAC1 clock */ |
Wenyou Yang | 57b7f29 | 2016-02-03 10:16:49 +0800 | [diff] [blame] | 196 | at91_periph_clk_enable(ATMEL_ID_EMAC1); |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 197 | /* EMAC1 pins setup */ |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 198 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 29, 0); /* ETXCK */ |
| 199 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 28, 0); /* ECRSDV */ |
| 200 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 20, 0); /* ERXO */ |
| 201 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 21, 0); /* ERX1 */ |
| 202 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 16, 0); /* ERXER */ |
| 203 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 27, 0); /* ETXEN */ |
| 204 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 18, 0); /* ETX0 */ |
| 205 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 19, 0); /* ETX1 */ |
| 206 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 31, 0); /* EMDIO */ |
| 207 | at91_pio3_set_b_periph(AT91_PIO_PORTC, 30, 0); /* EMDC */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 208 | } |
| 209 | |
| 210 | #ifndef CONFIG_RMII |
| 211 | /* Only emac0 support MII */ |
| 212 | if (has_emac0()) { |
Wenyou Yang | 4a92a3e | 2017-03-23 12:44:36 +0800 | [diff] [blame] | 213 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 16, 0); /* ECRS */ |
| 214 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 17, 0); /* ECOL */ |
| 215 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 13, 0); /* ERX2 */ |
| 216 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 14, 0); /* ERX3 */ |
| 217 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 15, 0); /* ERXCK */ |
| 218 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 11, 0); /* ETX2 */ |
| 219 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 12, 0); /* ETX3 */ |
| 220 | at91_pio3_set_a_periph(AT91_PIO_PORTB, 8, 0); /* ETXER */ |
Bo Shen | 42aafb3 | 2012-07-05 17:21:46 +0000 | [diff] [blame] | 221 | } |
| 222 | #endif |
| 223 | } |
| 224 | #endif |