Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-orion5x/ts78xx-setup.c |
| 3 | * |
| 4 | * Maintainer: Alexander Clouter <alex@digriz.org.uk> |
| 5 | * |
| 6 | * This file is licensed under the terms of the GNU General Public |
| 7 | * License version 2. This program is licensed "as is" without any |
| 8 | * warranty of any kind, whether express or implied. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/platform_device.h> |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 14 | #include <linux/mv643xx_eth.h> |
| 15 | #include <linux/ata_platform.h> |
| 16 | #include <linux/m48t86.h> |
| 17 | #include <asm/mach-types.h> |
| 18 | #include <asm/mach/arch.h> |
| 19 | #include <asm/mach/map.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 20 | #include <mach/orion5x.h> |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 21 | #include "common.h" |
| 22 | #include "mpp.h" |
| 23 | |
| 24 | /***************************************************************************** |
| 25 | * TS-78xx Info |
| 26 | ****************************************************************************/ |
| 27 | |
| 28 | /* |
| 29 | * FPGA - lives where the PCI bus would be at ORION5X_PCI_MEM_PHYS_BASE |
| 30 | */ |
| 31 | #define TS78XX_FPGA_REGS_PHYS_BASE 0xe8000000 |
| 32 | #define TS78XX_FPGA_REGS_VIRT_BASE 0xff900000 |
| 33 | #define TS78XX_FPGA_REGS_SIZE SZ_1M |
| 34 | |
| 35 | #define TS78XX_FPGA_REGS_SYSCON_ID (TS78XX_FPGA_REGS_VIRT_BASE | 0x000) |
| 36 | #define TS78XX_FPGA_REGS_SYSCON_LCDI (TS78XX_FPGA_REGS_VIRT_BASE | 0x004) |
| 37 | #define TS78XX_FPGA_REGS_SYSCON_LCDO (TS78XX_FPGA_REGS_VIRT_BASE | 0x008) |
| 38 | |
| 39 | #define TS78XX_FPGA_REGS_RTC_CTRL (TS78XX_FPGA_REGS_VIRT_BASE | 0x808) |
| 40 | #define TS78XX_FPGA_REGS_RTC_DATA (TS78XX_FPGA_REGS_VIRT_BASE | 0x80c) |
| 41 | |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 42 | /***************************************************************************** |
| 43 | * I/O Address Mapping |
| 44 | ****************************************************************************/ |
| 45 | static struct map_desc ts78xx_io_desc[] __initdata = { |
| 46 | { |
| 47 | .virtual = TS78XX_FPGA_REGS_VIRT_BASE, |
| 48 | .pfn = __phys_to_pfn(TS78XX_FPGA_REGS_PHYS_BASE), |
| 49 | .length = TS78XX_FPGA_REGS_SIZE, |
| 50 | .type = MT_DEVICE, |
| 51 | }, |
| 52 | }; |
| 53 | |
| 54 | void __init ts78xx_map_io(void) |
| 55 | { |
| 56 | orion5x_map_io(); |
| 57 | iotable_init(ts78xx_io_desc, ARRAY_SIZE(ts78xx_io_desc)); |
| 58 | } |
| 59 | |
| 60 | /***************************************************************************** |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 61 | * Ethernet |
| 62 | ****************************************************************************/ |
| 63 | static struct mv643xx_eth_platform_data ts78xx_eth_data = { |
Lennert Buytenhek | ac840605 | 2008-08-26 14:06:47 +0200 | [diff] [blame] | 64 | .phy_addr = MV643XX_ETH_PHY_ADDR(0), |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 65 | }; |
| 66 | |
| 67 | /***************************************************************************** |
| 68 | * RTC M48T86 - nicked^Wborrowed from arch/arm/mach-ep93xx/ts72xx.c |
| 69 | ****************************************************************************/ |
| 70 | #ifdef CONFIG_RTC_DRV_M48T86 |
| 71 | static unsigned char ts78xx_rtc_readbyte(unsigned long addr) |
| 72 | { |
| 73 | writeb(addr, TS78XX_FPGA_REGS_RTC_CTRL); |
| 74 | return readb(TS78XX_FPGA_REGS_RTC_DATA); |
| 75 | } |
| 76 | |
| 77 | static void ts78xx_rtc_writebyte(unsigned char value, unsigned long addr) |
| 78 | { |
| 79 | writeb(addr, TS78XX_FPGA_REGS_RTC_CTRL); |
| 80 | writeb(value, TS78XX_FPGA_REGS_RTC_DATA); |
| 81 | } |
| 82 | |
| 83 | static struct m48t86_ops ts78xx_rtc_ops = { |
| 84 | .readbyte = ts78xx_rtc_readbyte, |
| 85 | .writebyte = ts78xx_rtc_writebyte, |
| 86 | }; |
| 87 | |
| 88 | static struct platform_device ts78xx_rtc_device = { |
| 89 | .name = "rtc-m48t86", |
| 90 | .id = -1, |
| 91 | .dev = { |
| 92 | .platform_data = &ts78xx_rtc_ops, |
| 93 | }, |
| 94 | .num_resources = 0, |
| 95 | }; |
| 96 | |
| 97 | /* |
| 98 | * TS uses some of the user storage space on the RTC chip so see if it is |
| 99 | * present; as it's an optional feature at purchase time and not all boards |
| 100 | * will have it present |
| 101 | * |
| 102 | * I've used the method TS use in their rtc7800.c example for the detection |
| 103 | * |
| 104 | * TODO: track down a guinea pig without an RTC to see if we can work out a |
| 105 | * better RTC detection routine |
| 106 | */ |
| 107 | static int __init ts78xx_rtc_init(void) |
| 108 | { |
| 109 | unsigned char tmp_rtc0, tmp_rtc1; |
| 110 | |
| 111 | tmp_rtc0 = ts78xx_rtc_readbyte(126); |
| 112 | tmp_rtc1 = ts78xx_rtc_readbyte(127); |
| 113 | |
| 114 | ts78xx_rtc_writebyte(0x00, 126); |
| 115 | ts78xx_rtc_writebyte(0x55, 127); |
| 116 | if (ts78xx_rtc_readbyte(127) == 0x55) { |
| 117 | ts78xx_rtc_writebyte(0xaa, 127); |
| 118 | if (ts78xx_rtc_readbyte(127) == 0xaa |
| 119 | && ts78xx_rtc_readbyte(126) == 0x00) { |
| 120 | ts78xx_rtc_writebyte(tmp_rtc0, 126); |
| 121 | ts78xx_rtc_writebyte(tmp_rtc1, 127); |
| 122 | platform_device_register(&ts78xx_rtc_device); |
| 123 | return 1; |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | return 0; |
| 128 | }; |
| 129 | #else |
| 130 | static int __init ts78xx_rtc_init(void) |
| 131 | { |
| 132 | return 0; |
| 133 | } |
| 134 | #endif |
| 135 | |
| 136 | /***************************************************************************** |
| 137 | * SATA |
| 138 | ****************************************************************************/ |
| 139 | static struct mv_sata_platform_data ts78xx_sata_data = { |
| 140 | .n_ports = 2, |
| 141 | }; |
| 142 | |
| 143 | /***************************************************************************** |
| 144 | * print some information regarding the board |
| 145 | ****************************************************************************/ |
| 146 | static void __init ts78xx_print_board_id(void) |
| 147 | { |
| 148 | unsigned int board_info; |
| 149 | |
| 150 | board_info = readl(TS78XX_FPGA_REGS_SYSCON_ID); |
| 151 | printk(KERN_INFO "TS-78xx Info: FPGA rev=%.2x, Board Magic=%.6x, ", |
| 152 | board_info & 0xff, |
| 153 | (board_info >> 8) & 0xffffff); |
| 154 | board_info = readl(TS78XX_FPGA_REGS_SYSCON_LCDI); |
| 155 | printk("JP1=%d, JP2=%d\n", |
| 156 | (board_info >> 30) & 0x1, |
| 157 | (board_info >> 31) & 0x1); |
| 158 | }; |
| 159 | |
| 160 | /***************************************************************************** |
| 161 | * General Setup |
| 162 | ****************************************************************************/ |
| 163 | static struct orion5x_mpp_mode ts78xx_mpp_modes[] __initdata = { |
| 164 | { 0, MPP_UNUSED }, |
| 165 | { 1, MPP_GPIO }, /* JTAG Clock */ |
| 166 | { 2, MPP_GPIO }, /* JTAG Data In */ |
| 167 | { 3, MPP_GPIO }, /* Lat ECP2 256 FPGA - PB2B */ |
| 168 | { 4, MPP_GPIO }, /* JTAG Data Out */ |
| 169 | { 5, MPP_GPIO }, /* JTAG TMS */ |
| 170 | { 6, MPP_GPIO }, /* Lat ECP2 256 FPGA - PB31A_CLK4+ */ |
| 171 | { 7, MPP_GPIO }, /* Lat ECP2 256 FPGA - PB22B */ |
| 172 | { 8, MPP_UNUSED }, |
| 173 | { 9, MPP_UNUSED }, |
| 174 | { 10, MPP_UNUSED }, |
| 175 | { 11, MPP_UNUSED }, |
| 176 | { 12, MPP_UNUSED }, |
| 177 | { 13, MPP_UNUSED }, |
| 178 | { 14, MPP_UNUSED }, |
| 179 | { 15, MPP_UNUSED }, |
| 180 | { 16, MPP_UART }, |
| 181 | { 17, MPP_UART }, |
| 182 | { 18, MPP_UART }, |
| 183 | { 19, MPP_UART }, |
Alexander Clouter | f541286 | 2009-02-06 21:59:15 +0000 | [diff] [blame^] | 184 | /* |
| 185 | * MPP[20] PCI Clock Out 1 |
| 186 | * MPP[21] PCI Clock Out 0 |
| 187 | * MPP[22] Unused |
| 188 | * MPP[23] Unused |
| 189 | * MPP[24] Unused |
| 190 | * MPP[25] Unused |
| 191 | */ |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 192 | { -1 }, |
| 193 | }; |
| 194 | |
| 195 | static void __init ts78xx_init(void) |
| 196 | { |
| 197 | /* |
| 198 | * Setup basic Orion functions. Need to be called early. |
| 199 | */ |
| 200 | orion5x_init(); |
| 201 | |
| 202 | ts78xx_print_board_id(); |
| 203 | |
| 204 | orion5x_mpp_conf(ts78xx_mpp_modes); |
| 205 | |
| 206 | /* |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 207 | * Configure peripherals. |
| 208 | */ |
| 209 | orion5x_ehci0_init(); |
| 210 | orion5x_ehci1_init(); |
| 211 | orion5x_eth_init(&ts78xx_eth_data); |
| 212 | orion5x_sata_init(&ts78xx_sata_data); |
| 213 | orion5x_uart0_init(); |
| 214 | orion5x_uart1_init(); |
Saeed Bishara | 1d5a1a6 | 2008-06-16 23:25:12 -1100 | [diff] [blame] | 215 | orion5x_xor_init(); |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 216 | |
Alexander Clouter | 7171d86 | 2008-05-31 22:32:37 +0100 | [diff] [blame] | 217 | if (!ts78xx_rtc_init()) |
| 218 | printk(KERN_INFO "TS-78xx RTC not detected or enabled\n"); |
| 219 | } |
| 220 | |
| 221 | MACHINE_START(TS78XX, "Technologic Systems TS-78xx SBC") |
| 222 | /* Maintainer: Alexander Clouter <alex@digriz.org.uk> */ |
| 223 | .phys_io = ORION5X_REGS_PHYS_BASE, |
| 224 | .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, |
| 225 | .boot_params = 0x00000100, |
| 226 | .init_machine = ts78xx_init, |
| 227 | .map_io = ts78xx_map_io, |
| 228 | .init_irq = orion5x_init_irq, |
| 229 | .timer = &orion5x_timer, |
| 230 | MACHINE_END |