2
* Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
4
* Based on original Kirkwood support which is
6
* Marvell Semiconductor <www.marvell.com>
7
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
9
* SPDX-License-Identifier: GPL-2.0+
14
#include <asm/cache.h>
16
#include <u-boot/md5.h>
17
#include <asm/arch/cpu.h>
22
void reset_cpu(unsigned long ignored)
24
struct orion5x_cpu_registers *cpureg =
25
(struct orion5x_cpu_registers *)ORION5X_CPU_REG_BASE;
27
writel(readl(&cpureg->rstoutn_mask) | (1 << 2),
28
&cpureg->rstoutn_mask);
29
writel(readl(&cpureg->sys_soft_rst) | 1,
30
&cpureg->sys_soft_rst);
36
* Compute Window Size field value from size expressed in bytes
37
* Used with the Base register to set the address window size and location.
38
* Must be programmed from LSB to MSB as sequence of ones followed by
39
* sequence of zeros. The number of ones specifies the size of the window in
40
* 64 KiB granularity (e.g., a value of 0x00FF specifies 256 = 16 MiB).
42
* 1) A sizeval equal to 0x0 specifies 4 GiB.
43
* 2) A return value of 0x0 specifies 64 KiB.
45
unsigned int orion5x_winctrl_calcsize(unsigned int sizeval)
48
* Calculate the number of 64 KiB blocks needed minus one (rounding up).
49
* For sizeval > 0 this is equivalent to:
50
* sizeval = (u32) ceil((double) sizeval / 65536.0) - 1
52
sizeval = (sizeval - 1) >> 16;
55
* Propagate 'one' bits to the right by 'oring' them.
56
* We need only treat bits 15-0.
58
sizeval |= sizeval >> 1; /* 'Or' bit 15 onto bit 14 */
59
sizeval |= sizeval >> 2; /* 'Or' bits 15-14 onto bits 13-12 */
60
sizeval |= sizeval >> 4; /* 'Or' bits 15-12 onto bits 11-8 */
61
sizeval |= sizeval >> 8; /* 'Or' bits 15-8 onto bits 7-0*/
67
* orion5x_config_adr_windows - Configure address Windows
69
* There are 8 address windows supported by Orion5x Soc to addess different
70
* devices. Each window can be configured for size, BAR and remap addr
71
* Below configuration is standard for most of the cases
73
* If remap function not used, remap_lo must be set as base
77
* 1) in order to avoid windows with inconsistent control and base values
78
* (which could prevent access to BOOTCS and hence execution from FLASH)
79
* always disable window before writing the base value then reenable it
80
* by writing the control value.
82
* 2) in order to avoid losing access to BOOTCS when disabling window 7,
83
* first configure window 6 for BOOTCS, then configure window 7 for BOOTCS,
84
* then configure windows 6 for its own target.
86
* Reference Documentation:
87
* Mbus-L to Mbus Bridge Registers Configuration.
88
* (Sec 25.1 and 25.3 of Datasheet)
90
int orion5x_config_adr_windows(void)
92
struct orion5x_win_registers *winregs =
93
(struct orion5x_win_registers *)ORION5X_CPU_WIN_BASE;
95
/* Disable window 0, configure it for its intended target, enable it. */
96
writel(0, &winregs[0].ctrl);
97
writel(ORION5X_ADR_PCIE_MEM, &winregs[0].base);
98
writel(ORION5X_ADR_PCIE_MEM_REMAP_LO, &winregs[0].remap_lo);
99
writel(ORION5X_ADR_PCIE_MEM_REMAP_HI, &winregs[0].remap_hi);
100
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_MEM,
101
ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_MEM,
102
ORION5X_WIN_ENABLE), &winregs[0].ctrl);
103
/* Disable window 1, configure it for its intended target, enable it. */
104
writel(0, &winregs[1].ctrl);
105
writel(ORION5X_ADR_PCIE_IO, &winregs[1].base);
106
writel(ORION5X_ADR_PCIE_IO_REMAP_LO, &winregs[1].remap_lo);
107
writel(ORION5X_ADR_PCIE_IO_REMAP_HI, &winregs[1].remap_hi);
108
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_IO,
109
ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_IO,
110
ORION5X_WIN_ENABLE), &winregs[1].ctrl);
111
/* Disable window 2, configure it for its intended target, enable it. */
112
writel(0, &winregs[2].ctrl);
113
writel(ORION5X_ADR_PCI_MEM, &winregs[2].base);
114
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_MEM,
115
ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_MEM,
116
ORION5X_WIN_ENABLE), &winregs[2].ctrl);
117
/* Disable window 3, configure it for its intended target, enable it. */
118
writel(0, &winregs[3].ctrl);
119
writel(ORION5X_ADR_PCI_IO, &winregs[3].base);
120
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_IO,
121
ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_IO,
122
ORION5X_WIN_ENABLE), &winregs[3].ctrl);
123
/* Disable window 4, configure it for its intended target, enable it. */
124
writel(0, &winregs[4].ctrl);
125
writel(ORION5X_ADR_DEV_CS0, &winregs[4].base);
126
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS0,
127
ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS0,
128
ORION5X_WIN_ENABLE), &winregs[4].ctrl);
129
/* Disable window 5, configure it for its intended target, enable it. */
130
writel(0, &winregs[5].ctrl);
131
writel(ORION5X_ADR_DEV_CS1, &winregs[5].base);
132
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS1,
133
ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS1,
134
ORION5X_WIN_ENABLE), &winregs[5].ctrl);
135
/* Disable window 6, configure it for FLASH, enable it. */
136
writel(0, &winregs[6].ctrl);
137
writel(ORION5X_ADR_BOOTROM, &winregs[6].base);
138
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
139
ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
140
ORION5X_WIN_ENABLE), &winregs[6].ctrl);
141
/* Disable window 7, configure it for FLASH, enable it. */
142
writel(0, &winregs[7].ctrl);
143
writel(ORION5X_ADR_BOOTROM, &winregs[7].base);
144
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
145
ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
146
ORION5X_WIN_ENABLE), &winregs[7].ctrl);
147
/* Disable window 6, configure it for its intended target, enable it. */
148
writel(0, &winregs[6].ctrl);
149
writel(ORION5X_ADR_DEV_CS2, &winregs[6].base);
150
writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS2,
151
ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS2,
152
ORION5X_WIN_ENABLE), &winregs[6].ctrl);
158
* Orion5x identification is done through PCIE space.
161
u32 orion5x_device_id(void)
163
return readl(PCIE_DEV_ID_OFF) >> 16;
166
u32 orion5x_device_rev(void)
168
return readl(PCIE_DEV_REV_OFF) & 0xff;
171
#if defined(CONFIG_DISPLAY_CPUINFO)
173
/* Display device and revision IDs.
174
* This function must cover all known device/revision
175
* combinations, not only the one for which u-boot is
176
* compiled; this way, one can identify actual HW in
177
* case of a mismatch.
179
int print_cpuinfo(void)
181
char dev_str[7]; /* room enough for 0x0000 plus null byte */
182
char rev_str[5]; /* room enough for 0x00 plus null byte */
183
char *dev_name = NULL;
184
char *rev_name = NULL;
186
u32 dev = orion5x_device_id();
187
u32 rev = orion5x_device_rev();
189
if (dev == MV88F5181_DEV_ID) {
190
dev_name = "MV88F5181";
191
if (rev == MV88F5181_REV_B1)
193
else if (rev == MV88F5181L_REV_A1) {
194
dev_name = "MV88F5181L";
196
} else if (rev == MV88F5181L_REV_A0) {
197
dev_name = "MV88F5181L";
200
} else if (dev == MV88F5182_DEV_ID) {
201
dev_name = "MV88F5182";
202
if (rev == MV88F5182_REV_A2)
204
} else if (dev == MV88F5281_DEV_ID) {
205
dev_name = "MV88F5281";
206
if (rev == MV88F5281_REV_D2)
208
else if (rev == MV88F5281_REV_D1)
210
else if (rev == MV88F5281_REV_D0)
212
} else if (dev == MV88F6183_DEV_ID) {
213
dev_name = "MV88F6183";
214
if (rev == MV88F6183_REV_B0)
217
if (dev_name == NULL) {
218
sprintf(dev_str, "0x%04x", dev);
221
if (rev_name == NULL) {
222
sprintf(rev_str, "0x%02x", rev);
226
printf("SoC: Orion5x %s-%s\n", dev_name, rev_name);
230
#endif /* CONFIG_DISPLAY_CPUINFO */
232
#ifdef CONFIG_ARCH_CPU_INIT
233
int arch_cpu_init(void)
235
/* Enable and invalidate L2 cache in write through mode */
236
invalidate_l2_cache();
238
orion5x_config_adr_windows();
242
#endif /* CONFIG_ARCH_CPU_INIT */
245
* SOC specific misc init
247
#if defined(CONFIG_ARCH_MISC_INIT)
248
int arch_misc_init(void)
252
/*CPU streaming & write allocate */
253
temp = readfr_extra_feature_reg();
254
temp &= ~(1 << 28); /* disable wr alloc */
255
writefr_extra_feature_reg(temp);
257
temp = readfr_extra_feature_reg();
258
temp &= ~(1 << 29); /* streaming disabled */
259
writefr_extra_feature_reg(temp);
261
/* L2Cache settings */
262
temp = readfr_extra_feature_reg();
263
/* Disable L2C pre fetch - Set bit 24 */
265
/* enable L2C - Set bit 22 */
267
writefr_extra_feature_reg(temp);
270
/* Change reset vector to address 0x0 */
272
set_cr(temp & ~CR_V);
274
/* Set CPIOs and MPPs - values provided by board
276
writel(ORION5X_MPP0_7, ORION5X_MPP_BASE+0x00);
277
writel(ORION5X_MPP8_15, ORION5X_MPP_BASE+0x04);
278
writel(ORION5X_MPP16_23, ORION5X_MPP_BASE+0x50);
279
writel(ORION5X_GPIO_OUT_VALUE, ORION5X_GPIO_BASE+0x00);
280
writel(ORION5X_GPIO_OUT_ENABLE, ORION5X_GPIO_BASE+0x04);
281
writel(ORION5X_GPIO_IN_POLARITY, ORION5X_GPIO_BASE+0x0c);
283
/* initialize timer */
287
#endif /* CONFIG_ARCH_MISC_INIT */
290
int cpu_eth_init(bd_t *bis)
292
mvgbe_initialize(bis);