2 * arch/arm/mach-orion5x/common.c
4 * Core functions for Marvell Orion 5x SoCs
6 * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without any
10 * warranty of any kind, whether express or implied.
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/serial_8250.h>
18 #include <linux/mbus.h>
19 #include <linux/mv643xx_i2c.h>
20 #include <linux/ata_platform.h>
23 #include <asm/setup.h>
24 #include <asm/timex.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <asm/mach/time.h>
28 #include <mach/bridge-regs.h>
29 #include <mach/hardware.h>
30 #include <mach/orion5x.h>
31 #include <plat/orion_nand.h>
32 #include <plat/time.h>
33 #include <plat/common.h>
36 /*****************************************************************************
38 ****************************************************************************/
39 static struct map_desc orion5x_io_desc[] __initdata = {
41 .virtual = ORION5X_REGS_VIRT_BASE,
42 .pfn = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
43 .length = ORION5X_REGS_SIZE,
46 .virtual = ORION5X_PCIE_IO_VIRT_BASE,
47 .pfn = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
48 .length = ORION5X_PCIE_IO_SIZE,
51 .virtual = ORION5X_PCI_IO_VIRT_BASE,
52 .pfn = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
53 .length = ORION5X_PCI_IO_SIZE,
56 .virtual = ORION5X_PCIE_WA_VIRT_BASE,
57 .pfn = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
58 .length = ORION5X_PCIE_WA_SIZE,
63 void __init orion5x_map_io(void)
65 iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
69 /*****************************************************************************
71 ****************************************************************************/
72 void __init orion5x_ehci0_init(void)
74 orion_ehci_init(&orion5x_mbus_dram_info,
75 ORION5X_USB0_PHYS_BASE, IRQ_ORION5X_USB0_CTRL);
79 /*****************************************************************************
81 ****************************************************************************/
82 void __init orion5x_ehci1_init(void)
84 orion_ehci_1_init(&orion5x_mbus_dram_info,
85 ORION5X_USB1_PHYS_BASE, IRQ_ORION5X_USB1_CTRL);
89 /*****************************************************************************
91 ****************************************************************************/
92 void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
94 orion_ge00_init(eth_data, &orion5x_mbus_dram_info,
95 ORION5X_ETH_PHYS_BASE, IRQ_ORION5X_ETH_SUM,
96 IRQ_ORION5X_ETH_ERR, orion5x_tclk);
100 /*****************************************************************************
102 ****************************************************************************/
103 void __init orion5x_eth_switch_init(struct dsa_platform_data *d, int irq)
105 orion_ge00_switch_init(d, irq);
109 /*****************************************************************************
111 ****************************************************************************/
112 void __init orion5x_i2c_init(void)
114 orion_i2c_init(I2C_PHYS_BASE, IRQ_ORION5X_I2C, 8);
119 /*****************************************************************************
121 ****************************************************************************/
122 void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
124 orion_sata_init(sata_data, &orion5x_mbus_dram_info,
125 ORION5X_SATA_PHYS_BASE, IRQ_ORION5X_SATA);
129 /*****************************************************************************
131 ****************************************************************************/
132 void __init orion5x_spi_init()
134 orion_spi_init(SPI_PHYS_BASE, orion5x_tclk);
138 /*****************************************************************************
140 ****************************************************************************/
141 void __init orion5x_uart0_init(void)
143 orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE,
144 IRQ_ORION5X_UART0, orion5x_tclk);
147 /*****************************************************************************
149 ****************************************************************************/
150 void __init orion5x_uart1_init(void)
152 orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE,
153 IRQ_ORION5X_UART1, orion5x_tclk);
156 /*****************************************************************************
158 ****************************************************************************/
159 void __init orion5x_xor_init(void)
161 orion_xor0_init(&orion5x_mbus_dram_info,
162 ORION5X_XOR_PHYS_BASE,
163 ORION5X_XOR_PHYS_BASE + 0x200,
164 IRQ_ORION5X_XOR0, IRQ_ORION5X_XOR1);
167 /*****************************************************************************
168 * Cryptographic Engines and Security Accelerator (CESA)
169 ****************************************************************************/
170 static void __init orion5x_crypto_init(void)
172 orion5x_setup_sram_win();
173 orion_crypto_init(ORION5X_CRYPTO_PHYS_BASE, ORION5X_SRAM_PHYS_BASE,
174 SZ_8K, IRQ_ORION5X_CESA);
177 /*****************************************************************************
179 ****************************************************************************/
180 void __init orion5x_wdt_init(void)
182 orion_wdt_init(orion5x_tclk);
186 /*****************************************************************************
188 ****************************************************************************/
189 void __init orion5x_init_early(void)
191 orion_time_set_base(TIMER_VIRT_BASE);
196 int __init orion5x_find_tclk(void)
200 orion5x_pcie_id(&dev, &rev);
201 if (dev == MV88F6183_DEV_ID &&
202 (readl(MPP_RESET_SAMPLE) & 0x00000200) == 0)
208 static void orion5x_timer_init(void)
210 orion5x_tclk = orion5x_find_tclk();
212 orion_time_init(ORION5X_BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
213 IRQ_ORION5X_BRIDGE, orion5x_tclk);
216 struct sys_timer orion5x_timer = {
217 .init = orion5x_timer_init,
221 /*****************************************************************************
223 ****************************************************************************/
225 * Identify device ID and rev from PCIe configuration header space '0'.
227 static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
229 orion5x_pcie_id(dev, rev);
231 if (*dev == MV88F5281_DEV_ID) {
232 if (*rev == MV88F5281_REV_D2) {
233 *dev_name = "MV88F5281-D2";
234 } else if (*rev == MV88F5281_REV_D1) {
235 *dev_name = "MV88F5281-D1";
236 } else if (*rev == MV88F5281_REV_D0) {
237 *dev_name = "MV88F5281-D0";
239 *dev_name = "MV88F5281-Rev-Unsupported";
241 } else if (*dev == MV88F5182_DEV_ID) {
242 if (*rev == MV88F5182_REV_A2) {
243 *dev_name = "MV88F5182-A2";
245 *dev_name = "MV88F5182-Rev-Unsupported";
247 } else if (*dev == MV88F5181_DEV_ID) {
248 if (*rev == MV88F5181_REV_B1) {
249 *dev_name = "MV88F5181-Rev-B1";
250 } else if (*rev == MV88F5181L_REV_A1) {
251 *dev_name = "MV88F5181L-Rev-A1";
253 *dev_name = "MV88F5181(L)-Rev-Unsupported";
255 } else if (*dev == MV88F6183_DEV_ID) {
256 if (*rev == MV88F6183_REV_B0) {
257 *dev_name = "MV88F6183-Rev-B0";
259 *dev_name = "MV88F6183-Rev-Unsupported";
262 *dev_name = "Device-Unknown";
266 void __init orion5x_init(void)
271 orion5x_id(&dev, &rev, &dev_name);
272 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
275 * Setup Orion address map
277 orion5x_setup_cpu_mbus_bridge();
280 * Don't issue "Wait for Interrupt" instruction if we are
281 * running on D0 5281 silicon.
283 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
284 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
289 * The 5082/5181l/5182/6082/6082l/6183 have crypto
290 * while 5180n/5181/5281 don't have crypto.
292 if ((dev == MV88F5181_DEV_ID && rev >= MV88F5181L_REV_A0) ||
293 dev == MV88F5182_DEV_ID || dev == MV88F6183_DEV_ID)
294 orion5x_crypto_init();
297 * Register watchdog driver
303 * Many orion-based systems have buggy bootloader implementations.
304 * This is a common fixup for bogus memory tags.
306 void __init tag_fixup_mem32(struct tag *t, char **from,
307 struct meminfo *meminfo)
309 for (; t->hdr.size; t = tag_next(t))
310 if (t->hdr.tag == ATAG_MEM &&
311 (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
312 t->u.mem.start & ~PAGE_MASK)) {
314 "Clearing invalid memory bank %dKB@0x%08x\n",
315 t->u.mem.size / 1024, t->u.mem.start);