Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * BRIEF MODULE DESCRIPTION |
| 4 | * Alchemy Pb1200/Db1200 board setup. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your |
| 9 | * option) any later version. |
| 10 | * |
| 11 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 12 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 13 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 14 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 15 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 16 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 17 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 18 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 19 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 20 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License along |
| 23 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 24 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 25 | */ |
Sergei Shtylyov | ce28f94 | 2008-04-23 22:43:55 +0400 | [diff] [blame] | 26 | |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 27 | #include <linux/init.h> |
| 28 | #include <linux/sched.h> |
Yoichi Yuasa | 25b31cb | 2007-10-15 19:11:24 +0900 | [diff] [blame] | 29 | |
Yoichi Yuasa | 25b31cb | 2007-10-15 19:11:24 +0900 | [diff] [blame] | 30 | #include <prom.h> |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 31 | #include <au1xxx.h> |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 32 | |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 33 | |
Manuel Lauss | 23ba25d | 2008-12-21 09:26:15 +0100 | [diff] [blame] | 34 | const char *get_system_type(void) |
| 35 | { |
| 36 | return "Alchemy Pb1200"; |
| 37 | } |
| 38 | |
Ralf Baechle | 49a89ef | 2007-10-11 23:46:15 +0100 | [diff] [blame] | 39 | void board_reset(void) |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 40 | { |
| 41 | bcsr->resets = 0; |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 42 | bcsr->system = 0; |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 43 | } |
| 44 | |
| 45 | void __init board_setup(void) |
| 46 | { |
Manuel Lauss | 7179380 | 2008-12-21 09:26:16 +0100 | [diff] [blame] | 47 | char *argptr; |
| 48 | |
| 49 | argptr = prom_getcmdline(); |
| 50 | #ifdef CONFIG_SERIAL_8250_CONSOLE |
| 51 | argptr = strstr(argptr, "console="); |
| 52 | if (argptr == NULL) { |
| 53 | argptr = prom_getcmdline(); |
| 54 | strcat(argptr, " console=ttyS0,115200"); |
| 55 | } |
| 56 | #endif |
| 57 | #ifdef CONFIG_FB_AU1200 |
| 58 | strcat(argptr, " video=au1200fb:panel:bs"); |
| 59 | #endif |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 60 | |
| 61 | #if 0 |
Ralf Baechle | f5cd9f1 | 2007-11-01 12:22:53 +0000 | [diff] [blame] | 62 | { |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 63 | u32 pin_func; |
Ralf Baechle | f5cd9f1 | 2007-11-01 12:22:53 +0000 | [diff] [blame] | 64 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 65 | /* |
| 66 | * Enable PSC1 SYNC for AC97. Normaly done in audio driver, |
| 67 | * but it is board specific code, so put it here. |
| 68 | */ |
| 69 | pin_func = au_readl(SYS_PINFUNC); |
| 70 | au_sync(); |
| 71 | pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1; |
| 72 | au_writel(pin_func, SYS_PINFUNC); |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 73 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 74 | au_writel(0, (u32)bcsr | 0x10); /* turn off PCMCIA power */ |
| 75 | au_sync(); |
Ralf Baechle | f5cd9f1 | 2007-11-01 12:22:53 +0000 | [diff] [blame] | 76 | } |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 77 | #endif |
| 78 | |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 79 | #if defined(CONFIG_I2C_AU1550) |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 80 | { |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 81 | u32 freq0, clksrc; |
| 82 | u32 pin_func; |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 83 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 84 | /* Select SMBus in CPLD */ |
| 85 | bcsr->resets &= ~BCSR_RESETS_PCS0MUX; |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 86 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 87 | pin_func = au_readl(SYS_PINFUNC); |
| 88 | au_sync(); |
| 89 | pin_func &= ~(SYS_PINFUNC_P0A | SYS_PINFUNC_P0B); |
| 90 | /* Set GPIOs correctly */ |
| 91 | pin_func |= 2 << 17; |
| 92 | au_writel(pin_func, SYS_PINFUNC); |
| 93 | au_sync(); |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 94 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 95 | /* The I2C driver depends on 50 MHz clock */ |
| 96 | freq0 = au_readl(SYS_FREQCTRL0); |
| 97 | au_sync(); |
| 98 | freq0 &= ~(SYS_FC_FRDIV1_MASK | SYS_FC_FS1 | SYS_FC_FE1); |
| 99 | freq0 |= 3 << SYS_FC_FRDIV1_BIT; |
| 100 | /* 396 MHz / (3 + 1) * 2 == 49.5 MHz */ |
| 101 | au_writel(freq0, SYS_FREQCTRL0); |
| 102 | au_sync(); |
| 103 | freq0 |= SYS_FC_FE1; |
| 104 | au_writel(freq0, SYS_FREQCTRL0); |
| 105 | au_sync(); |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 106 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 107 | clksrc = au_readl(SYS_CLKSRC); |
| 108 | au_sync(); |
| 109 | clksrc &= ~(SYS_CS_CE0 | SYS_CS_DE0 | SYS_CS_ME0_MASK); |
| 110 | /* Bit 22 is EXTCLK0 for PSC0 */ |
| 111 | clksrc |= SYS_CS_MUX_FQ1 << SYS_CS_ME0_BIT; |
| 112 | au_writel(clksrc, SYS_CLKSRC); |
| 113 | au_sync(); |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 114 | } |
| 115 | #endif |
| 116 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 117 | /* |
| 118 | * The Pb1200 development board uses external MUX for PSC0 to |
| 119 | * support SMB/SPI. bcsr->resets bit 12: 0=SMB 1=SPI |
| 120 | */ |
Ralf Baechle | 6fec2e1 | 2007-07-13 06:33:09 +0100 | [diff] [blame] | 121 | #ifdef CONFIG_I2C_AU1550 |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 122 | bcsr->resets &= ~BCSR_RESETS_PCS0MUX; |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 123 | #endif |
| 124 | au_sync(); |
| 125 | |
| 126 | #ifdef CONFIG_MIPS_PB1200 |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 127 | printk(KERN_INFO "AMD Alchemy Pb1200 Board\n"); |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 128 | #endif |
| 129 | #ifdef CONFIG_MIPS_DB1200 |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 130 | printk(KERN_INFO "AMD Alchemy Db1200 Board\n"); |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 131 | #endif |
Pete Popov | e3ad1c2 | 2005-03-01 06:33:16 +0000 | [diff] [blame] | 132 | } |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 133 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 134 | int board_au1200fb_panel(void) |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 135 | { |
| 136 | BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR; |
| 137 | int p; |
| 138 | |
| 139 | p = bcsr->switches; |
| 140 | p >>= 8; |
| 141 | p &= 0x0F; |
| 142 | return p; |
| 143 | } |
| 144 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 145 | int board_au1200fb_panel_init(void) |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 146 | { |
| 147 | /* Apply power */ |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 148 | BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR; |
| 149 | |
| 150 | bcsr->board |= BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | BCSR_BOARD_LCDBL; |
| 151 | /* printk(KERN_DEBUG "board_au1200fb_panel_init()\n"); */ |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 152 | return 0; |
| 153 | } |
| 154 | |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 155 | int board_au1200fb_panel_shutdown(void) |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 156 | { |
| 157 | /* Remove power */ |
Sergei Shtylyov | c3d1d5c | 2008-04-30 23:29:04 +0400 | [diff] [blame] | 158 | BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR; |
| 159 | |
| 160 | bcsr->board &= ~(BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | |
| 161 | BCSR_BOARD_LCDBL); |
| 162 | /* printk(KERN_DEBUG "board_au1200fb_panel_shutdown()\n"); */ |
Pete Popov | 64abf64 | 2005-09-14 16:17:59 +0000 | [diff] [blame] | 163 | return 0; |
| 164 | } |