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 static struct resource orion5x_crypto_res
[] = {
170 .start
= ORION5X_CRYPTO_PHYS_BASE
,
171 .end
= ORION5X_CRYPTO_PHYS_BASE
+ 0xffff,
172 .flags
= IORESOURCE_MEM
,
175 .start
= ORION5X_SRAM_PHYS_BASE
,
176 .end
= ORION5X_SRAM_PHYS_BASE
+ SZ_8K
- 1,
177 .flags
= IORESOURCE_MEM
,
179 .name
= "crypto interrupt",
180 .start
= IRQ_ORION5X_CESA
,
181 .end
= IRQ_ORION5X_CESA
,
182 .flags
= IORESOURCE_IRQ
,
186 static struct platform_device orion5x_crypto_device
= {
189 .num_resources
= ARRAY_SIZE(orion5x_crypto_res
),
190 .resource
= orion5x_crypto_res
,
193 static int __init
orion5x_crypto_init(void)
197 ret
= orion5x_setup_sram_win();
201 return platform_device_register(&orion5x_crypto_device
);
204 /*****************************************************************************
206 ****************************************************************************/
207 void __init
orion5x_wdt_init(void)
209 orion_wdt_init(orion5x_tclk
);
213 /*****************************************************************************
215 ****************************************************************************/
216 void __init
orion5x_init_early(void)
218 orion_time_set_base(TIMER_VIRT_BASE
);
223 int __init
orion5x_find_tclk(void)
227 orion5x_pcie_id(&dev
, &rev
);
228 if (dev
== MV88F6183_DEV_ID
&&
229 (readl(MPP_RESET_SAMPLE
) & 0x00000200) == 0)
235 static void orion5x_timer_init(void)
237 orion5x_tclk
= orion5x_find_tclk();
239 orion_time_init(ORION5X_BRIDGE_VIRT_BASE
, BRIDGE_INT_TIMER1_CLR
,
240 IRQ_ORION5X_BRIDGE
, orion5x_tclk
);
243 struct sys_timer orion5x_timer
= {
244 .init
= orion5x_timer_init
,
248 /*****************************************************************************
250 ****************************************************************************/
252 * Identify device ID and rev from PCIe configuration header space '0'.
254 static void __init
orion5x_id(u32
*dev
, u32
*rev
, char **dev_name
)
256 orion5x_pcie_id(dev
, rev
);
258 if (*dev
== MV88F5281_DEV_ID
) {
259 if (*rev
== MV88F5281_REV_D2
) {
260 *dev_name
= "MV88F5281-D2";
261 } else if (*rev
== MV88F5281_REV_D1
) {
262 *dev_name
= "MV88F5281-D1";
263 } else if (*rev
== MV88F5281_REV_D0
) {
264 *dev_name
= "MV88F5281-D0";
266 *dev_name
= "MV88F5281-Rev-Unsupported";
268 } else if (*dev
== MV88F5182_DEV_ID
) {
269 if (*rev
== MV88F5182_REV_A2
) {
270 *dev_name
= "MV88F5182-A2";
272 *dev_name
= "MV88F5182-Rev-Unsupported";
274 } else if (*dev
== MV88F5181_DEV_ID
) {
275 if (*rev
== MV88F5181_REV_B1
) {
276 *dev_name
= "MV88F5181-Rev-B1";
277 } else if (*rev
== MV88F5181L_REV_A1
) {
278 *dev_name
= "MV88F5181L-Rev-A1";
280 *dev_name
= "MV88F5181(L)-Rev-Unsupported";
282 } else if (*dev
== MV88F6183_DEV_ID
) {
283 if (*rev
== MV88F6183_REV_B0
) {
284 *dev_name
= "MV88F6183-Rev-B0";
286 *dev_name
= "MV88F6183-Rev-Unsupported";
289 *dev_name
= "Device-Unknown";
293 void __init
orion5x_init(void)
298 orion5x_id(&dev
, &rev
, &dev_name
);
299 printk(KERN_INFO
"Orion ID: %s. TCLK=%d.\n", dev_name
, orion5x_tclk
);
302 * Setup Orion address map
304 orion5x_setup_cpu_mbus_bridge();
307 * Don't issue "Wait for Interrupt" instruction if we are
308 * running on D0 5281 silicon.
310 if (dev
== MV88F5281_DEV_ID
&& rev
== MV88F5281_REV_D0
) {
311 printk(KERN_INFO
"Orion: Applying 5281 D0 WFI workaround.\n");
316 * The 5082/5181l/5182/6082/6082l/6183 have crypto
317 * while 5180n/5181/5281 don't have crypto.
319 if ((dev
== MV88F5181_DEV_ID
&& rev
>= MV88F5181L_REV_A0
) ||
320 dev
== MV88F5182_DEV_ID
|| dev
== MV88F6183_DEV_ID
)
321 orion5x_crypto_init();
324 * Register watchdog driver
330 * Many orion-based systems have buggy bootloader implementations.
331 * This is a common fixup for bogus memory tags.
333 void __init
tag_fixup_mem32(struct machine_desc
*mdesc
, struct tag
*t
,
334 char **from
, struct meminfo
*meminfo
)
336 for (; t
->hdr
.size
; t
= tag_next(t
))
337 if (t
->hdr
.tag
== ATAG_MEM
&&
338 (!t
->u
.mem
.size
|| t
->u
.mem
.size
& ~PAGE_MASK
||
339 t
->u
.mem
.start
& ~PAGE_MASK
)) {
341 "Clearing invalid memory bank %dKB@0x%08x\n",
342 t
->u
.mem
.size
/ 1024, t
->u
.mem
.start
);