Saeed Bishara | 651c74c | 2008-06-22 22:45:06 +0200 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-kirkwood/common.c |
| 3 | * |
| 4 | * Core functions for Marvell Kirkwood SoCs |
| 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> |
| 14 | #include <linux/serial_8250.h> |
| 15 | #include <linux/mbus.h> |
| 16 | #include <linux/mv643xx_eth.h> |
| 17 | #include <linux/ata_platform.h> |
| 18 | #include <asm/page.h> |
| 19 | #include <asm/timex.h> |
| 20 | #include <asm/mach/map.h> |
| 21 | #include <asm/mach/time.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 22 | #include <mach/kirkwood.h> |
Lennert Buytenhek | 6f088f1 | 2008-08-09 13:44:58 +0200 | [diff] [blame^] | 23 | #include <plat/cache-feroceon-l2.h> |
| 24 | #include <plat/ehci-orion.h> |
| 25 | #include <plat/orion_nand.h> |
| 26 | #include <plat/time.h> |
Saeed Bishara | 651c74c | 2008-06-22 22:45:06 +0200 | [diff] [blame] | 27 | #include "common.h" |
| 28 | |
| 29 | /***************************************************************************** |
| 30 | * I/O Address Mapping |
| 31 | ****************************************************************************/ |
| 32 | static struct map_desc kirkwood_io_desc[] __initdata = { |
| 33 | { |
| 34 | .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE, |
| 35 | .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE), |
| 36 | .length = KIRKWOOD_PCIE_IO_SIZE, |
| 37 | .type = MT_DEVICE, |
| 38 | }, { |
| 39 | .virtual = KIRKWOOD_REGS_VIRT_BASE, |
| 40 | .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE), |
| 41 | .length = KIRKWOOD_REGS_SIZE, |
| 42 | .type = MT_DEVICE, |
| 43 | }, |
| 44 | }; |
| 45 | |
| 46 | void __init kirkwood_map_io(void) |
| 47 | { |
| 48 | iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc)); |
| 49 | } |
| 50 | |
| 51 | |
| 52 | /***************************************************************************** |
| 53 | * EHCI |
| 54 | ****************************************************************************/ |
| 55 | static struct orion_ehci_data kirkwood_ehci_data = { |
| 56 | .dram = &kirkwood_mbus_dram_info, |
| 57 | }; |
| 58 | |
| 59 | static u64 ehci_dmamask = 0xffffffffUL; |
| 60 | |
| 61 | |
| 62 | /***************************************************************************** |
| 63 | * EHCI0 |
| 64 | ****************************************************************************/ |
| 65 | static struct resource kirkwood_ehci_resources[] = { |
| 66 | { |
| 67 | .start = USB_PHYS_BASE, |
| 68 | .end = USB_PHYS_BASE + 0x0fff, |
| 69 | .flags = IORESOURCE_MEM, |
| 70 | }, { |
| 71 | .start = IRQ_KIRKWOOD_USB, |
| 72 | .end = IRQ_KIRKWOOD_USB, |
| 73 | .flags = IORESOURCE_IRQ, |
| 74 | }, |
| 75 | }; |
| 76 | |
| 77 | static struct platform_device kirkwood_ehci = { |
| 78 | .name = "orion-ehci", |
| 79 | .id = 0, |
| 80 | .dev = { |
| 81 | .dma_mask = &ehci_dmamask, |
| 82 | .coherent_dma_mask = 0xffffffff, |
| 83 | .platform_data = &kirkwood_ehci_data, |
| 84 | }, |
| 85 | .resource = kirkwood_ehci_resources, |
| 86 | .num_resources = ARRAY_SIZE(kirkwood_ehci_resources), |
| 87 | }; |
| 88 | |
| 89 | void __init kirkwood_ehci_init(void) |
| 90 | { |
| 91 | platform_device_register(&kirkwood_ehci); |
| 92 | } |
| 93 | |
| 94 | |
| 95 | /***************************************************************************** |
| 96 | * GE00 |
| 97 | ****************************************************************************/ |
| 98 | struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = { |
| 99 | .t_clk = KIRKWOOD_TCLK, |
| 100 | .dram = &kirkwood_mbus_dram_info, |
| 101 | }; |
| 102 | |
| 103 | static struct resource kirkwood_ge00_shared_resources[] = { |
| 104 | { |
| 105 | .name = "ge00 base", |
| 106 | .start = GE00_PHYS_BASE + 0x2000, |
| 107 | .end = GE00_PHYS_BASE + 0x3fff, |
| 108 | .flags = IORESOURCE_MEM, |
| 109 | }, |
| 110 | }; |
| 111 | |
| 112 | static struct platform_device kirkwood_ge00_shared = { |
| 113 | .name = MV643XX_ETH_SHARED_NAME, |
| 114 | .id = 0, |
| 115 | .dev = { |
| 116 | .platform_data = &kirkwood_ge00_shared_data, |
| 117 | }, |
| 118 | .num_resources = 1, |
| 119 | .resource = kirkwood_ge00_shared_resources, |
| 120 | }; |
| 121 | |
| 122 | static struct resource kirkwood_ge00_resources[] = { |
| 123 | { |
| 124 | .name = "ge00 irq", |
| 125 | .start = IRQ_KIRKWOOD_GE00_SUM, |
| 126 | .end = IRQ_KIRKWOOD_GE00_SUM, |
| 127 | .flags = IORESOURCE_IRQ, |
| 128 | }, |
| 129 | }; |
| 130 | |
| 131 | static struct platform_device kirkwood_ge00 = { |
| 132 | .name = MV643XX_ETH_NAME, |
| 133 | .id = 0, |
| 134 | .num_resources = 1, |
| 135 | .resource = kirkwood_ge00_resources, |
| 136 | }; |
| 137 | |
| 138 | void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data) |
| 139 | { |
| 140 | eth_data->shared = &kirkwood_ge00_shared; |
| 141 | kirkwood_ge00.dev.platform_data = eth_data; |
| 142 | |
| 143 | platform_device_register(&kirkwood_ge00_shared); |
| 144 | platform_device_register(&kirkwood_ge00); |
| 145 | } |
| 146 | |
| 147 | |
| 148 | /***************************************************************************** |
| 149 | * SoC RTC |
| 150 | ****************************************************************************/ |
| 151 | static struct resource kirkwood_rtc_resource = { |
| 152 | .start = RTC_PHYS_BASE, |
| 153 | .end = RTC_PHYS_BASE + SZ_16 - 1, |
| 154 | .flags = IORESOURCE_MEM, |
| 155 | }; |
| 156 | |
| 157 | void __init kirkwood_rtc_init(void) |
| 158 | { |
| 159 | platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1); |
| 160 | } |
| 161 | |
| 162 | |
| 163 | /***************************************************************************** |
| 164 | * SATA |
| 165 | ****************************************************************************/ |
| 166 | static struct resource kirkwood_sata_resources[] = { |
| 167 | { |
| 168 | .name = "sata base", |
| 169 | .start = SATA_PHYS_BASE, |
| 170 | .end = SATA_PHYS_BASE + 0x5000 - 1, |
| 171 | .flags = IORESOURCE_MEM, |
| 172 | }, { |
| 173 | .name = "sata irq", |
| 174 | .start = IRQ_KIRKWOOD_SATA, |
| 175 | .end = IRQ_KIRKWOOD_SATA, |
| 176 | .flags = IORESOURCE_IRQ, |
| 177 | }, |
| 178 | }; |
| 179 | |
| 180 | static struct platform_device kirkwood_sata = { |
| 181 | .name = "sata_mv", |
| 182 | .id = 0, |
| 183 | .dev = { |
| 184 | .coherent_dma_mask = 0xffffffff, |
| 185 | }, |
| 186 | .num_resources = ARRAY_SIZE(kirkwood_sata_resources), |
| 187 | .resource = kirkwood_sata_resources, |
| 188 | }; |
| 189 | |
| 190 | void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data) |
| 191 | { |
| 192 | sata_data->dram = &kirkwood_mbus_dram_info; |
| 193 | kirkwood_sata.dev.platform_data = sata_data; |
| 194 | platform_device_register(&kirkwood_sata); |
| 195 | } |
| 196 | |
| 197 | |
| 198 | /***************************************************************************** |
| 199 | * UART0 |
| 200 | ****************************************************************************/ |
| 201 | static struct plat_serial8250_port kirkwood_uart0_data[] = { |
| 202 | { |
| 203 | .mapbase = UART0_PHYS_BASE, |
| 204 | .membase = (char *)UART0_VIRT_BASE, |
| 205 | .irq = IRQ_KIRKWOOD_UART_0, |
| 206 | .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, |
| 207 | .iotype = UPIO_MEM, |
| 208 | .regshift = 2, |
| 209 | .uartclk = KIRKWOOD_TCLK, |
| 210 | }, { |
| 211 | }, |
| 212 | }; |
| 213 | |
| 214 | static struct resource kirkwood_uart0_resources[] = { |
| 215 | { |
| 216 | .start = UART0_PHYS_BASE, |
| 217 | .end = UART0_PHYS_BASE + 0xff, |
| 218 | .flags = IORESOURCE_MEM, |
| 219 | }, { |
| 220 | .start = IRQ_KIRKWOOD_UART_0, |
| 221 | .end = IRQ_KIRKWOOD_UART_0, |
| 222 | .flags = IORESOURCE_IRQ, |
| 223 | }, |
| 224 | }; |
| 225 | |
| 226 | static struct platform_device kirkwood_uart0 = { |
| 227 | .name = "serial8250", |
| 228 | .id = 0, |
| 229 | .dev = { |
| 230 | .platform_data = kirkwood_uart0_data, |
| 231 | }, |
| 232 | .resource = kirkwood_uart0_resources, |
| 233 | .num_resources = ARRAY_SIZE(kirkwood_uart0_resources), |
| 234 | }; |
| 235 | |
| 236 | void __init kirkwood_uart0_init(void) |
| 237 | { |
| 238 | platform_device_register(&kirkwood_uart0); |
| 239 | } |
| 240 | |
| 241 | |
| 242 | /***************************************************************************** |
| 243 | * UART1 |
| 244 | ****************************************************************************/ |
| 245 | static struct plat_serial8250_port kirkwood_uart1_data[] = { |
| 246 | { |
| 247 | .mapbase = UART1_PHYS_BASE, |
| 248 | .membase = (char *)UART1_VIRT_BASE, |
| 249 | .irq = IRQ_KIRKWOOD_UART_1, |
| 250 | .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, |
| 251 | .iotype = UPIO_MEM, |
| 252 | .regshift = 2, |
| 253 | .uartclk = KIRKWOOD_TCLK, |
| 254 | }, { |
| 255 | }, |
| 256 | }; |
| 257 | |
| 258 | static struct resource kirkwood_uart1_resources[] = { |
| 259 | { |
| 260 | .start = UART1_PHYS_BASE, |
| 261 | .end = UART1_PHYS_BASE + 0xff, |
| 262 | .flags = IORESOURCE_MEM, |
| 263 | }, { |
| 264 | .start = IRQ_KIRKWOOD_UART_1, |
| 265 | .end = IRQ_KIRKWOOD_UART_1, |
| 266 | .flags = IORESOURCE_IRQ, |
| 267 | }, |
| 268 | }; |
| 269 | |
| 270 | static struct platform_device kirkwood_uart1 = { |
| 271 | .name = "serial8250", |
| 272 | .id = 1, |
| 273 | .dev = { |
| 274 | .platform_data = kirkwood_uart1_data, |
| 275 | }, |
| 276 | .resource = kirkwood_uart1_resources, |
| 277 | .num_resources = ARRAY_SIZE(kirkwood_uart1_resources), |
| 278 | }; |
| 279 | |
| 280 | void __init kirkwood_uart1_init(void) |
| 281 | { |
| 282 | platform_device_register(&kirkwood_uart1); |
| 283 | } |
| 284 | |
| 285 | |
| 286 | /***************************************************************************** |
| 287 | * Time handling |
| 288 | ****************************************************************************/ |
| 289 | static void kirkwood_timer_init(void) |
| 290 | { |
| 291 | orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK); |
| 292 | } |
| 293 | |
| 294 | struct sys_timer kirkwood_timer = { |
| 295 | .init = kirkwood_timer_init, |
| 296 | }; |
| 297 | |
| 298 | |
| 299 | /***************************************************************************** |
| 300 | * General |
| 301 | ****************************************************************************/ |
| 302 | static char * __init kirkwood_id(void) |
| 303 | { |
| 304 | switch (readl(DEVICE_ID) & 0x3) { |
| 305 | case 0: |
| 306 | return "88F6180"; |
| 307 | case 1: |
| 308 | return "88F6192"; |
| 309 | case 2: |
| 310 | return "88F6281"; |
| 311 | } |
| 312 | |
| 313 | return "unknown 88F6000 variant"; |
| 314 | } |
| 315 | |
Saeed Bishara | 1338760 | 2008-06-23 01:05:08 -1100 | [diff] [blame] | 316 | static int __init is_l2_writethrough(void) |
| 317 | { |
| 318 | return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH); |
| 319 | } |
| 320 | |
Saeed Bishara | 651c74c | 2008-06-22 22:45:06 +0200 | [diff] [blame] | 321 | void __init kirkwood_init(void) |
| 322 | { |
| 323 | printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n", |
| 324 | kirkwood_id(), KIRKWOOD_TCLK); |
| 325 | |
| 326 | kirkwood_setup_cpu_mbus(); |
| 327 | |
| 328 | #ifdef CONFIG_CACHE_FEROCEON_L2 |
Saeed Bishara | 1338760 | 2008-06-23 01:05:08 -1100 | [diff] [blame] | 329 | feroceon_l2_init(is_l2_writethrough()); |
Saeed Bishara | 651c74c | 2008-06-22 22:45:06 +0200 | [diff] [blame] | 330 | #endif |
| 331 | } |