2 * arch/arm/mach-kirkwood/common.c
4 * Core functions for Marvell Kirkwood SoCs
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.
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>
19 #include <asm/timex.h>
20 #include <asm/mach/map.h>
21 #include <asm/mach/time.h>
22 #include <asm/arch/kirkwood.h>
23 #include <asm/plat-orion/cache-feroceon-l2.h>
24 #include <asm/plat-orion/ehci-orion.h>
25 #include <asm/plat-orion/orion_nand.h>
26 #include <asm/plat-orion/time.h>
29 /*****************************************************************************
31 ****************************************************************************/
32 static struct map_desc kirkwood_io_desc[] __initdata = {
34 .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE,
35 .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
36 .length = KIRKWOOD_PCIE_IO_SIZE,
39 .virtual = KIRKWOOD_REGS_VIRT_BASE,
40 .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
41 .length = KIRKWOOD_REGS_SIZE,
46 void __init kirkwood_map_io(void)
48 iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
52 /*****************************************************************************
54 ****************************************************************************/
55 static struct orion_ehci_data kirkwood_ehci_data = {
56 .dram = &kirkwood_mbus_dram_info,
59 static u64 ehci_dmamask = 0xffffffffUL;
62 /*****************************************************************************
64 ****************************************************************************/
65 static struct resource kirkwood_ehci_resources[] = {
67 .start = USB_PHYS_BASE,
68 .end = USB_PHYS_BASE + 0x0fff,
69 .flags = IORESOURCE_MEM,
71 .start = IRQ_KIRKWOOD_USB,
72 .end = IRQ_KIRKWOOD_USB,
73 .flags = IORESOURCE_IRQ,
77 static struct platform_device kirkwood_ehci = {
81 .dma_mask = &ehci_dmamask,
82 .coherent_dma_mask = 0xffffffff,
83 .platform_data = &kirkwood_ehci_data,
85 .resource = kirkwood_ehci_resources,
86 .num_resources = ARRAY_SIZE(kirkwood_ehci_resources),
89 void __init kirkwood_ehci_init(void)
91 platform_device_register(&kirkwood_ehci);
95 /*****************************************************************************
97 ****************************************************************************/
98 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
99 .t_clk = KIRKWOOD_TCLK,
100 .dram = &kirkwood_mbus_dram_info,
103 static struct resource kirkwood_ge00_shared_resources[] = {
106 .start = GE00_PHYS_BASE + 0x2000,
107 .end = GE00_PHYS_BASE + 0x3fff,
108 .flags = IORESOURCE_MEM,
112 static struct platform_device kirkwood_ge00_shared = {
113 .name = MV643XX_ETH_SHARED_NAME,
116 .platform_data = &kirkwood_ge00_shared_data,
119 .resource = kirkwood_ge00_shared_resources,
122 static struct resource kirkwood_ge00_resources[] = {
125 .start = IRQ_KIRKWOOD_GE00_SUM,
126 .end = IRQ_KIRKWOOD_GE00_SUM,
127 .flags = IORESOURCE_IRQ,
131 static struct platform_device kirkwood_ge00 = {
132 .name = MV643XX_ETH_NAME,
135 .resource = kirkwood_ge00_resources,
138 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
140 eth_data->shared = &kirkwood_ge00_shared;
141 kirkwood_ge00.dev.platform_data = eth_data;
143 platform_device_register(&kirkwood_ge00_shared);
144 platform_device_register(&kirkwood_ge00);
148 /*****************************************************************************
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,
157 void __init kirkwood_rtc_init(void)
159 platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
163 /*****************************************************************************
165 ****************************************************************************/
166 static struct resource kirkwood_sata_resources[] = {
169 .start = SATA_PHYS_BASE,
170 .end = SATA_PHYS_BASE + 0x5000 - 1,
171 .flags = IORESOURCE_MEM,
174 .start = IRQ_KIRKWOOD_SATA,
175 .end = IRQ_KIRKWOOD_SATA,
176 .flags = IORESOURCE_IRQ,
180 static struct platform_device kirkwood_sata = {
184 .coherent_dma_mask = 0xffffffff,
186 .num_resources = ARRAY_SIZE(kirkwood_sata_resources),
187 .resource = kirkwood_sata_resources,
190 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
192 sata_data->dram = &kirkwood_mbus_dram_info;
193 kirkwood_sata.dev.platform_data = sata_data;
194 platform_device_register(&kirkwood_sata);
198 /*****************************************************************************
200 ****************************************************************************/
201 static struct plat_serial8250_port kirkwood_uart0_data[] = {
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,
209 .uartclk = KIRKWOOD_TCLK,
214 static struct resource kirkwood_uart0_resources[] = {
216 .start = UART0_PHYS_BASE,
217 .end = UART0_PHYS_BASE + 0xff,
218 .flags = IORESOURCE_MEM,
220 .start = IRQ_KIRKWOOD_UART_0,
221 .end = IRQ_KIRKWOOD_UART_0,
222 .flags = IORESOURCE_IRQ,
226 static struct platform_device kirkwood_uart0 = {
227 .name = "serial8250",
230 .platform_data = kirkwood_uart0_data,
232 .resource = kirkwood_uart0_resources,
233 .num_resources = ARRAY_SIZE(kirkwood_uart0_resources),
236 void __init kirkwood_uart0_init(void)
238 platform_device_register(&kirkwood_uart0);
242 /*****************************************************************************
244 ****************************************************************************/
245 static struct plat_serial8250_port kirkwood_uart1_data[] = {
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,
253 .uartclk = KIRKWOOD_TCLK,
258 static struct resource kirkwood_uart1_resources[] = {
260 .start = UART1_PHYS_BASE,
261 .end = UART1_PHYS_BASE + 0xff,
262 .flags = IORESOURCE_MEM,
264 .start = IRQ_KIRKWOOD_UART_1,
265 .end = IRQ_KIRKWOOD_UART_1,
266 .flags = IORESOURCE_IRQ,
270 static struct platform_device kirkwood_uart1 = {
271 .name = "serial8250",
274 .platform_data = kirkwood_uart1_data,
276 .resource = kirkwood_uart1_resources,
277 .num_resources = ARRAY_SIZE(kirkwood_uart1_resources),
280 void __init kirkwood_uart1_init(void)
282 platform_device_register(&kirkwood_uart1);
286 /*****************************************************************************
288 ****************************************************************************/
289 static void kirkwood_timer_init(void)
291 orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK);
294 struct sys_timer kirkwood_timer = {
295 .init = kirkwood_timer_init,
299 /*****************************************************************************
301 ****************************************************************************/
302 static char * __init kirkwood_id(void)
304 switch (readl(DEVICE_ID) & 0x3) {
313 return "unknown 88F6000 variant";
316 static int __init is_l2_writethrough(void)
318 return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH);
321 void __init kirkwood_init(void)
323 printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
324 kirkwood_id(), KIRKWOOD_TCLK);
326 kirkwood_setup_cpu_mbus();
328 #ifdef CONFIG_CACHE_FEROCEON_L2
329 feroceon_l2_init(is_l2_writethrough());