diff options
-rw-r--r-- | arch/powerpc/sysdev/Makefile | 1 | ||||
-rw-r--r-- | arch/powerpc/sysdev/tsi108_dev.c | 145 | ||||
-rw-r--r-- | arch/powerpc/sysdev/tsi108_pci.c | 412 | ||||
-rw-r--r-- | include/asm-powerpc/tsi108.h | 109 |
4 files changed, 667 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index cef95b023730..63e81e74b45e 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile | |||
@@ -12,3 +12,4 @@ obj-$(CONFIG_U3_DART) += dart_iommu.o | |||
12 | obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o | 12 | obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o |
13 | obj-$(CONFIG_PPC_83xx) += ipic.o | 13 | obj-$(CONFIG_PPC_83xx) += ipic.o |
14 | obj-$(CONFIG_FSL_SOC) += fsl_soc.o | 14 | obj-$(CONFIG_FSL_SOC) += fsl_soc.o |
15 | obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o | ||
diff --git a/arch/powerpc/sysdev/tsi108_dev.c b/arch/powerpc/sysdev/tsi108_dev.c new file mode 100644 index 000000000000..26a0cc820cde --- /dev/null +++ b/arch/powerpc/sysdev/tsi108_dev.c | |||
@@ -0,0 +1,145 @@ | |||
1 | /* | ||
2 | * tsi108/109 device setup code | ||
3 | * | ||
4 | * Maintained by Roy Zang < tie-fei.zang@freescale.com > | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify it | ||
7 | * under the terms of the GNU General Public License as published by the | ||
8 | * Free Software Foundation; either version 2 of the License, or (at your | ||
9 | * option) any later version. | ||
10 | */ | ||
11 | |||
12 | #include <linux/config.h> | ||
13 | #include <linux/stddef.h> | ||
14 | #include <linux/kernel.h> | ||
15 | #include <linux/init.h> | ||
16 | #include <linux/errno.h> | ||
17 | #include <linux/major.h> | ||
18 | #include <linux/delay.h> | ||
19 | #include <linux/irq.h> | ||
20 | #include <linux/module.h> | ||
21 | #include <linux/device.h> | ||
22 | #include <linux/platform_device.h> | ||
23 | #include <asm/tsi108.h> | ||
24 | |||
25 | #include <asm/system.h> | ||
26 | #include <asm/atomic.h> | ||
27 | #include <asm/io.h> | ||
28 | #include <asm/irq.h> | ||
29 | #include <asm/prom.h> | ||
30 | #include <mm/mmu_decl.h> | ||
31 | |||
32 | #undef DEBUG | ||
33 | |||
34 | #ifdef DEBUG | ||
35 | #define DBG(fmt...) do { printk(fmt); } while(0) | ||
36 | #else | ||
37 | #define DBG(fmt...) do { } while(0) | ||
38 | #endif | ||
39 | |||
40 | static phys_addr_t tsi108_csr_base = -1; | ||
41 | |||
42 | phys_addr_t get_csrbase(void) | ||
43 | { | ||
44 | struct device_node *tsi; | ||
45 | |||
46 | if (tsi108_csr_base != -1) | ||
47 | return tsi108_csr_base; | ||
48 | |||
49 | tsi = of_find_node_by_type(NULL, "tsi-bridge"); | ||
50 | if (tsi) { | ||
51 | unsigned int size; | ||
52 | void *prop = get_property(tsi, "reg", &size); | ||
53 | tsi108_csr_base = of_translate_address(tsi, prop); | ||
54 | of_node_put(tsi); | ||
55 | }; | ||
56 | return tsi108_csr_base; | ||
57 | } | ||
58 | |||
59 | u32 get_vir_csrbase(void) | ||
60 | { | ||
61 | return (u32) (ioremap(get_csrbase(), 0x10000)); | ||
62 | } | ||
63 | |||
64 | EXPORT_SYMBOL(get_csrbase); | ||
65 | EXPORT_SYMBOL(get_vir_csrbase); | ||
66 | |||
67 | static int __init tsi108_eth_of_init(void) | ||
68 | { | ||
69 | struct device_node *np; | ||
70 | unsigned int i; | ||
71 | struct platform_device *tsi_eth_dev; | ||
72 | struct resource res; | ||
73 | int ret; | ||
74 | |||
75 | for (np = NULL, i = 0; | ||
76 | (np = of_find_compatible_node(np, "network", "tsi-ethernet")) != NULL; | ||
77 | i++) { | ||
78 | struct resource r[2]; | ||
79 | struct device_node *phy; | ||
80 | hw_info tsi_eth_data; | ||
81 | unsigned int *id; | ||
82 | unsigned int *phy_id; | ||
83 | void *mac_addr; | ||
84 | phandle *ph; | ||
85 | |||
86 | memset(r, 0, sizeof(r)); | ||
87 | memset(&tsi_eth_data, 0, sizeof(tsi_eth_data)); | ||
88 | |||
89 | ret = of_address_to_resource(np, 0, &r[0]); | ||
90 | DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n", | ||
91 | __FUNCTION__,r[0].name, r[0].start, r[0].end); | ||
92 | if (ret) | ||
93 | goto err; | ||
94 | |||
95 | r[1].name = "tx"; | ||
96 | r[1].start = np->intrs[0].line; | ||
97 | r[1].end = np->intrs[0].line; | ||
98 | r[1].flags = IORESOURCE_IRQ; | ||
99 | |||
100 | tsi_eth_dev = | ||
101 | platform_device_register_simple("tsi-ethernet", i, &r[0], | ||
102 | np->n_intrs + 1); | ||
103 | |||
104 | if (IS_ERR(tsi_eth_dev)) { | ||
105 | ret = PTR_ERR(tsi_eth_dev); | ||
106 | goto err; | ||
107 | } | ||
108 | |||
109 | mac_addr = get_property(np, "address", NULL); | ||
110 | memcpy(tsi_eth_data.mac_addr, mac_addr, 6); | ||
111 | |||
112 | ph = (phandle *) get_property(np, "phy-handle", NULL); | ||
113 | phy = of_find_node_by_phandle(*ph); | ||
114 | |||
115 | if (phy == NULL) { | ||
116 | ret = -ENODEV; | ||
117 | goto unreg; | ||
118 | } | ||
119 | |||
120 | id = (u32 *) get_property(phy, "reg", NULL); | ||
121 | phy_id = (u32 *) get_property(phy, "phy-id", NULL); | ||
122 | ret = of_address_to_resource(phy, 0, &res); | ||
123 | if (ret) { | ||
124 | of_node_put(phy); | ||
125 | goto unreg; | ||
126 | } | ||
127 | tsi_eth_data.regs = r[0].start; | ||
128 | tsi_eth_data.phyregs = res.start; | ||
129 | tsi_eth_data.phy = *phy_id; | ||
130 | tsi_eth_data.irq_num = np->intrs[0].line; | ||
131 | of_node_put(phy); | ||
132 | ret = | ||
133 | platform_device_add_data(tsi_eth_dev, &tsi_eth_data, | ||
134 | sizeof(hw_info)); | ||
135 | if (ret) | ||
136 | goto unreg; | ||
137 | } | ||
138 | return 0; | ||
139 | unreg: | ||
140 | platform_device_unregister(tsi_eth_dev); | ||
141 | err: | ||
142 | return ret; | ||
143 | } | ||
144 | |||
145 | arch_initcall(tsi108_eth_of_init); | ||
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c new file mode 100644 index 000000000000..3265d54c82ed --- /dev/null +++ b/arch/powerpc/sysdev/tsi108_pci.c | |||
@@ -0,0 +1,412 @@ | |||
1 | /* | ||
2 | * Common routines for Tundra Semiconductor TSI108 host bridge. | ||
3 | * | ||
4 | * 2004-2005 (c) Tundra Semiconductor Corp. | ||
5 | * Author: Alex Bounine (alexandreb@tundra.com) | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify it | ||
8 | * under the terms of the GNU General Public License as published by the Free | ||
9 | * Software Foundation; either version 2 of the License, or (at your option) | ||
10 | * any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | ||
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
15 | * more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License along with | ||
18 | * this program; if not, write to the Free Software Foundation, Inc., 59 | ||
19 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
20 | */ | ||
21 | |||
22 | #include <linux/kernel.h> | ||
23 | #include <linux/init.h> | ||
24 | #include <linux/pci.h> | ||
25 | #include <linux/slab.h> | ||
26 | #include <linux/irq.h> | ||
27 | #include <linux/interrupt.h> | ||
28 | |||
29 | |||
30 | #include <asm/byteorder.h> | ||
31 | #include <asm/io.h> | ||
32 | #include <asm/irq.h> | ||
33 | #include <asm/uaccess.h> | ||
34 | #include <asm/machdep.h> | ||
35 | #include <asm/pci-bridge.h> | ||
36 | #include <asm/tsi108.h> | ||
37 | #include <asm/tsi108_irq.h> | ||
38 | #include <asm/prom.h> | ||
39 | |||
40 | #undef DEBUG | ||
41 | #ifdef DEBUG | ||
42 | #define DBG(x...) printk(x) | ||
43 | #else | ||
44 | #define DBG(x...) | ||
45 | #endif | ||
46 | |||
47 | #define tsi_mk_config_addr(bus, devfunc, offset) \ | ||
48 | ((((bus)<<16) | ((devfunc)<<8) | (offset & 0xfc)) + tsi108_pci_cfg_base) | ||
49 | |||
50 | u32 tsi108_pci_cfg_base; | ||
51 | u32 tsi108_csr_vir_base; | ||
52 | |||
53 | extern u32 get_vir_csrbase(void); | ||
54 | extern u32 tsi108_read_reg(u32 reg_offset); | ||
55 | extern void tsi108_write_reg(u32 reg_offset, u32 val); | ||
56 | |||
57 | int | ||
58 | tsi108_direct_write_config(struct pci_bus *bus, unsigned int devfunc, | ||
59 | int offset, int len, u32 val) | ||
60 | { | ||
61 | volatile unsigned char *cfg_addr; | ||
62 | |||
63 | if (ppc_md.pci_exclude_device) | ||
64 | if (ppc_md.pci_exclude_device(bus->number, devfunc)) | ||
65 | return PCIBIOS_DEVICE_NOT_FOUND; | ||
66 | |||
67 | cfg_addr = (unsigned char *)(tsi_mk_config_addr(bus->number, | ||
68 | devfunc, offset) | | ||
69 | (offset & 0x03)); | ||
70 | |||
71 | #ifdef DEBUG | ||
72 | printk("PCI CFG write : "); | ||
73 | printk("%d:0x%x:0x%x ", bus->number, devfunc, offset); | ||
74 | printk("%d ADDR=0x%08x ", len, (uint) cfg_addr); | ||
75 | printk("data = 0x%08x\n", val); | ||
76 | #endif | ||
77 | |||
78 | switch (len) { | ||
79 | case 1: | ||
80 | out_8((u8 *) cfg_addr, val); | ||
81 | break; | ||
82 | case 2: | ||
83 | out_le16((u16 *) cfg_addr, val); | ||
84 | break; | ||
85 | default: | ||
86 | out_le32((u32 *) cfg_addr, val); | ||
87 | break; | ||
88 | } | ||
89 | |||
90 | return PCIBIOS_SUCCESSFUL; | ||
91 | } | ||
92 | |||
93 | void tsi108_clear_pci_error(u32 pci_cfg_base) | ||
94 | { | ||
95 | u32 err_stat, err_addr, pci_stat; | ||
96 | |||
97 | /* | ||
98 | * Quietly clear PB and PCI error flags set as result | ||
99 | * of PCI/X configuration read requests. | ||
100 | */ | ||
101 | |||
102 | /* Read PB Error Log Registers */ | ||
103 | |||
104 | err_stat = tsi108_read_reg(TSI108_PB_OFFSET + TSI108_PB_ERRCS); | ||
105 | err_addr = tsi108_read_reg(TSI108_PB_OFFSET + TSI108_PB_AERR); | ||
106 | |||
107 | if (err_stat & TSI108_PB_ERRCS_ES) { | ||
108 | /* Clear error flag */ | ||
109 | tsi108_write_reg(TSI108_PB_OFFSET + TSI108_PB_ERRCS, | ||
110 | TSI108_PB_ERRCS_ES); | ||
111 | |||
112 | /* Clear read error reported in PB_ISR */ | ||
113 | tsi108_write_reg(TSI108_PB_OFFSET + TSI108_PB_ISR, | ||
114 | TSI108_PB_ISR_PBS_RD_ERR); | ||
115 | |||
116 | /* Clear PCI/X bus cfg errors if applicable */ | ||
117 | if ((err_addr & 0xFF000000) == pci_cfg_base) { | ||
118 | pci_stat = | ||
119 | tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_CSR); | ||
120 | tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_CSR, | ||
121 | pci_stat); | ||
122 | } | ||
123 | } | ||
124 | |||
125 | return; | ||
126 | } | ||
127 | |||
128 | #define __tsi108_read_pci_config(x, addr, op) \ | ||
129 | __asm__ __volatile__( \ | ||
130 | " "op" %0,0,%1\n" \ | ||
131 | "1: eieio\n" \ | ||
132 | "2:\n" \ | ||
133 | ".section .fixup,\"ax\"\n" \ | ||
134 | "3: li %0,-1\n" \ | ||
135 | " b 2b\n" \ | ||
136 | ".section __ex_table,\"a\"\n" \ | ||
137 | " .align 2\n" \ | ||
138 | " .long 1b,3b\n" \ | ||
139 | ".text" \ | ||
140 | : "=r"(x) : "r"(addr)) | ||
141 | |||
142 | int | ||
143 | tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn, int offset, | ||
144 | int len, u32 * val) | ||
145 | { | ||
146 | volatile unsigned char *cfg_addr; | ||
147 | u32 temp; | ||
148 | |||
149 | if (ppc_md.pci_exclude_device) | ||
150 | if (ppc_md.pci_exclude_device(bus->number, devfn)) | ||
151 | return PCIBIOS_DEVICE_NOT_FOUND; | ||
152 | |||
153 | cfg_addr = (unsigned char *)(tsi_mk_config_addr(bus->number, | ||
154 | devfn, | ||
155 | offset) | (offset & | ||
156 | 0x03)); | ||
157 | |||
158 | switch (len) { | ||
159 | case 1: | ||
160 | __tsi108_read_pci_config(temp, cfg_addr, "lbzx"); | ||
161 | break; | ||
162 | case 2: | ||
163 | __tsi108_read_pci_config(temp, cfg_addr, "lhbrx"); | ||
164 | break; | ||
165 | default: | ||
166 | __tsi108_read_pci_config(temp, cfg_addr, "lwbrx"); | ||
167 | break; | ||
168 | } | ||
169 | |||
170 | *val = temp; | ||
171 | |||
172 | #ifdef DEBUG | ||
173 | if ((0xFFFFFFFF != temp) && (0xFFFF != temp) && (0xFF != temp)) { | ||
174 | printk("PCI CFG read : "); | ||
175 | printk("%d:0x%x:0x%x ", bus->number, devfn, offset); | ||
176 | printk("%d ADDR=0x%08x ", len, (uint) cfg_addr); | ||
177 | printk("data = 0x%x\n", *val); | ||
178 | } | ||
179 | #endif | ||
180 | return PCIBIOS_SUCCESSFUL; | ||
181 | } | ||
182 | |||
183 | void tsi108_clear_pci_cfg_error(void) | ||
184 | { | ||
185 | tsi108_clear_pci_error(TSI108_PCI_CFG_BASE_PHYS); | ||
186 | } | ||
187 | |||
188 | static struct pci_ops tsi108_direct_pci_ops = { | ||
189 | tsi108_direct_read_config, | ||
190 | tsi108_direct_write_config | ||
191 | }; | ||
192 | |||
193 | int __init tsi108_setup_pci(struct device_node *dev) | ||
194 | { | ||
195 | int len; | ||
196 | struct pci_controller *hose; | ||
197 | struct resource rsrc; | ||
198 | int *bus_range; | ||
199 | int primary = 0, has_address = 0; | ||
200 | |||
201 | /* PCI Config mapping */ | ||
202 | tsi108_pci_cfg_base = (u32)ioremap(TSI108_PCI_CFG_BASE_PHYS, | ||
203 | TSI108_PCI_CFG_SIZE); | ||
204 | DBG("TSI_PCI: %s tsi108_pci_cfg_base=0x%x\n", __FUNCTION__, | ||
205 | tsi108_pci_cfg_base); | ||
206 | |||
207 | /* Fetch host bridge registers address */ | ||
208 | has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); | ||
209 | |||
210 | /* Get bus range if any */ | ||
211 | bus_range = (int *)get_property(dev, "bus-range", &len); | ||
212 | if (bus_range == NULL || len < 2 * sizeof(int)) { | ||
213 | printk(KERN_WARNING "Can't get bus-range for %s, assume" | ||
214 | " bus 0\n", dev->full_name); | ||
215 | } | ||
216 | |||
217 | hose = pcibios_alloc_controller(); | ||
218 | |||
219 | if (!hose) { | ||
220 | printk("PCI Host bridge init failed\n"); | ||
221 | return -ENOMEM; | ||
222 | } | ||
223 | hose->arch_data = dev; | ||
224 | hose->set_cfg_type = 1; | ||
225 | |||
226 | hose->first_busno = bus_range ? bus_range[0] : 0; | ||
227 | hose->last_busno = bus_range ? bus_range[1] : 0xff; | ||
228 | |||
229 | (hose)->ops = &tsi108_direct_pci_ops; | ||
230 | |||
231 | printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08lx. " | ||
232 | "Firmware bus number: %d->%d\n", | ||
233 | rsrc.start, hose->first_busno, hose->last_busno); | ||
234 | |||
235 | /* Interpret the "ranges" property */ | ||
236 | /* This also maps the I/O region and sets isa_io/mem_base */ | ||
237 | pci_process_bridge_OF_ranges(hose, dev, primary); | ||
238 | return 0; | ||
239 | } | ||
240 | |||
241 | /* | ||
242 | * Low level utility functions | ||
243 | */ | ||
244 | |||
245 | static void tsi108_pci_int_mask(u_int irq) | ||
246 | { | ||
247 | u_int irp_cfg; | ||
248 | int int_line = (irq - IRQ_PCI_INTAD_BASE); | ||
249 | |||
250 | irp_cfg = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL); | ||
251 | mb(); | ||
252 | irp_cfg |= (1 << int_line); /* INTx_DIR = output */ | ||
253 | irp_cfg &= ~(3 << (8 + (int_line * 2))); /* INTx_TYPE = unused */ | ||
254 | tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL, irp_cfg); | ||
255 | mb(); | ||
256 | irp_cfg = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL); | ||
257 | } | ||
258 | |||
259 | static void tsi108_pci_int_unmask(u_int irq) | ||
260 | { | ||
261 | u_int irp_cfg; | ||
262 | int int_line = (irq - IRQ_PCI_INTAD_BASE); | ||
263 | |||
264 | irp_cfg = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL); | ||
265 | mb(); | ||
266 | irp_cfg &= ~(1 << int_line); | ||
267 | irp_cfg |= (3 << (8 + (int_line * 2))); | ||
268 | tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL, irp_cfg); | ||
269 | mb(); | ||
270 | } | ||
271 | |||
272 | static void init_pci_source(void) | ||
273 | { | ||
274 | tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL, | ||
275 | 0x0000ff00); | ||
276 | tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE, | ||
277 | TSI108_PCI_IRP_ENABLE_P_INT); | ||
278 | mb(); | ||
279 | } | ||
280 | |||
281 | static inline int get_pci_source(void) | ||
282 | { | ||
283 | u_int temp = 0; | ||
284 | int irq = -1; | ||
285 | int i; | ||
286 | u_int pci_irp_stat; | ||
287 | static int mask = 0; | ||
288 | |||
289 | /* Read PCI/X block interrupt status register */ | ||
290 | pci_irp_stat = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_STAT); | ||
291 | mb(); | ||
292 | |||
293 | if (pci_irp_stat & TSI108_PCI_IRP_STAT_P_INT) { | ||
294 | /* Process Interrupt from PCI bus INTA# - INTD# lines */ | ||
295 | temp = | ||
296 | tsi108_read_reg(TSI108_PCI_OFFSET + | ||
297 | TSI108_PCI_IRP_INTAD) & 0xf; | ||
298 | mb(); | ||
299 | for (i = 0; i < 4; i++, mask++) { | ||
300 | if (temp & (1 << mask % 4)) { | ||
301 | irq = IRQ_PCI_INTA + mask % 4; | ||
302 | mask++; | ||
303 | break; | ||
304 | } | ||
305 | } | ||
306 | |||
307 | /* Disable interrupts from PCI block */ | ||
308 | temp = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE); | ||
309 | tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE, | ||
310 | temp & ~TSI108_PCI_IRP_ENABLE_P_INT); | ||
311 | mb(); | ||
312 | (void)tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE); | ||
313 | mb(); | ||
314 | } | ||
315 | #ifdef DEBUG | ||
316 | else { | ||
317 | printk("TSI108_PIC: error in TSI108_PCI_IRP_STAT\n"); | ||
318 | pci_irp_stat = | ||
319 | tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_STAT); | ||
320 | temp = | ||
321 | tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_INTAD); | ||
322 | mb(); | ||
323 | printk(">> stat=0x%08x intad=0x%08x ", pci_irp_stat, temp); | ||
324 | temp = | ||
325 | tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL); | ||
326 | mb(); | ||
327 | printk("cfg_ctl=0x%08x ", temp); | ||
328 | temp = | ||
329 | tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE); | ||
330 | mb(); | ||
331 | printk("irp_enable=0x%08x\n", temp); | ||
332 | } | ||
333 | #endif /* end of DEBUG */ | ||
334 | |||
335 | return irq; | ||
336 | } | ||
337 | |||
338 | |||
339 | /* | ||
340 | * Linux descriptor level callbacks | ||
341 | */ | ||
342 | |||
343 | static void tsi108_pci_irq_enable(u_int irq) | ||
344 | { | ||
345 | tsi108_pci_int_unmask(irq); | ||
346 | } | ||
347 | |||
348 | static void tsi108_pci_irq_disable(u_int irq) | ||
349 | { | ||
350 | tsi108_pci_int_mask(irq); | ||
351 | } | ||
352 | |||
353 | static void tsi108_pci_irq_ack(u_int irq) | ||
354 | { | ||
355 | tsi108_pci_int_mask(irq); | ||
356 | } | ||
357 | |||
358 | static void tsi108_pci_irq_end(u_int irq) | ||
359 | { | ||
360 | tsi108_pci_int_unmask(irq); | ||
361 | |||
362 | /* Enable interrupts from PCI block */ | ||
363 | tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE, | ||
364 | tsi108_read_reg(TSI108_PCI_OFFSET + | ||
365 | TSI108_PCI_IRP_ENABLE) | | ||
366 | TSI108_PCI_IRP_ENABLE_P_INT); | ||
367 | mb(); | ||
368 | } | ||
369 | |||
370 | /* | ||
371 | * Interrupt controller descriptor for cascaded PCI interrupt controller. | ||
372 | */ | ||
373 | |||
374 | struct hw_interrupt_type tsi108_pci_irq = { | ||
375 | .typename = "tsi108_PCI_int", | ||
376 | .enable = tsi108_pci_irq_enable, | ||
377 | .disable = tsi108_pci_irq_disable, | ||
378 | .ack = tsi108_pci_irq_ack, | ||
379 | .end = tsi108_pci_irq_end, | ||
380 | }; | ||
381 | |||
382 | /* | ||
383 | * Exported functions | ||
384 | */ | ||
385 | |||
386 | /* | ||
387 | * The Tsi108 PCI interrupts initialization routine. | ||
388 | * | ||
389 | * The INTA# - INTD# interrupts on the PCI bus are reported by the PCI block | ||
390 | * to the MPIC using single interrupt source (IRQ_TSI108_PCI). Therefore the | ||
391 | * PCI block has to be treated as a cascaded interrupt controller connected | ||
392 | * to the MPIC. | ||
393 | */ | ||
394 | |||
395 | void __init tsi108_pci_int_init(void) | ||
396 | { | ||
397 | u_int i; | ||
398 | |||
399 | DBG("Tsi108_pci_int_init: initializing PCI interrupts\n"); | ||
400 | |||
401 | for (i = 0; i < NUM_PCI_IRQS; i++) { | ||
402 | irq_desc[i + IRQ_PCI_INTAD_BASE].handler = &tsi108_pci_irq; | ||
403 | irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL; | ||
404 | } | ||
405 | |||
406 | init_pci_source(); | ||
407 | } | ||
408 | |||
409 | int tsi108_irq_cascade(struct pt_regs *regs, void *unused) | ||
410 | { | ||
411 | return get_pci_source(); | ||
412 | } | ||
diff --git a/include/asm-powerpc/tsi108.h b/include/asm-powerpc/tsi108.h new file mode 100644 index 000000000000..c4c278d72f71 --- /dev/null +++ b/include/asm-powerpc/tsi108.h | |||
@@ -0,0 +1,109 @@ | |||
1 | /* | ||
2 | * include/asm-ppc/tsi108.h | ||
3 | * | ||
4 | * common routine and memory layout for Tundra TSI108(Grendel) host bridge | ||
5 | * memory controller. | ||
6 | * | ||
7 | * Author: Jacob Pan (jacob.pan@freescale.com) | ||
8 | * Alex Bounine (alexandreb@tundra.com) | ||
9 | * 2004 (c) Freescale Semiconductor Inc. This file is licensed under | ||
10 | * the terms of the GNU General Public License version 2. This program | ||
11 | * is licensed "as is" without any warranty of any kind, whether express | ||
12 | * or implied. | ||
13 | */ | ||
14 | #ifndef __PPC_KERNEL_TSI108_H | ||
15 | #define __PPC_KERNEL_TSI108_H | ||
16 | |||
17 | #include <asm/pci-bridge.h> | ||
18 | |||
19 | /* Size of entire register space */ | ||
20 | #define TSI108_REG_SIZE (0x10000) | ||
21 | |||
22 | /* Sizes of register spaces for individual blocks */ | ||
23 | #define TSI108_HLP_SIZE 0x1000 | ||
24 | #define TSI108_PCI_SIZE 0x1000 | ||
25 | #define TSI108_CLK_SIZE 0x1000 | ||
26 | #define TSI108_PB_SIZE 0x1000 | ||
27 | #define TSI108_SD_SIZE 0x1000 | ||
28 | #define TSI108_DMA_SIZE 0x1000 | ||
29 | #define TSI108_ETH_SIZE 0x1000 | ||
30 | #define TSI108_I2C_SIZE 0x400 | ||
31 | #define TSI108_MPIC_SIZE 0x400 | ||
32 | #define TSI108_UART0_SIZE 0x200 | ||
33 | #define TSI108_GPIO_SIZE 0x200 | ||
34 | #define TSI108_UART1_SIZE 0x200 | ||
35 | |||
36 | /* Offsets within Tsi108(A) CSR space for individual blocks */ | ||
37 | #define TSI108_HLP_OFFSET 0x0000 | ||
38 | #define TSI108_PCI_OFFSET 0x1000 | ||
39 | #define TSI108_CLK_OFFSET 0x2000 | ||
40 | #define TSI108_PB_OFFSET 0x3000 | ||
41 | #define TSI108_SD_OFFSET 0x4000 | ||
42 | #define TSI108_DMA_OFFSET 0x5000 | ||
43 | #define TSI108_ETH_OFFSET 0x6000 | ||
44 | #define TSI108_I2C_OFFSET 0x7000 | ||
45 | #define TSI108_MPIC_OFFSET 0x7400 | ||
46 | #define TSI108_UART0_OFFSET 0x7800 | ||
47 | #define TSI108_GPIO_OFFSET 0x7A00 | ||
48 | #define TSI108_UART1_OFFSET 0x7C00 | ||
49 | |||
50 | /* Tsi108 registers used by common code components */ | ||
51 | #define TSI108_PCI_CSR (0x004) | ||
52 | #define TSI108_PCI_IRP_CFG_CTL (0x180) | ||
53 | #define TSI108_PCI_IRP_STAT (0x184) | ||
54 | #define TSI108_PCI_IRP_ENABLE (0x188) | ||
55 | #define TSI108_PCI_IRP_INTAD (0x18C) | ||
56 | |||
57 | #define TSI108_PCI_IRP_STAT_P_INT (0x00400000) | ||
58 | #define TSI108_PCI_IRP_ENABLE_P_INT (0x00400000) | ||
59 | |||
60 | #define TSI108_CG_PWRUP_STATUS (0x234) | ||
61 | |||
62 | #define TSI108_PB_ISR (0x00C) | ||
63 | #define TSI108_PB_ERRCS (0x404) | ||
64 | #define TSI108_PB_AERR (0x408) | ||
65 | |||
66 | #define TSI108_PB_ERRCS_ES (1 << 1) | ||
67 | #define TSI108_PB_ISR_PBS_RD_ERR (1 << 8) | ||
68 | |||
69 | #define TSI108_PCI_CFG_BASE_PHYS (0xfb000000) | ||
70 | #define TSI108_PCI_CFG_SIZE (0x01000000) | ||
71 | /* Global variables */ | ||
72 | |||
73 | extern u32 tsi108_pci_cfg_base; | ||
74 | /* Exported functions */ | ||
75 | |||
76 | extern int tsi108_bridge_init(struct pci_controller *hose, uint phys_csr_base); | ||
77 | extern unsigned long tsi108_get_mem_size(void); | ||
78 | extern unsigned long tsi108_get_cpu_clk(void); | ||
79 | extern unsigned long tsi108_get_sdc_clk(void); | ||
80 | extern int tsi108_direct_write_config(struct pci_bus *bus, unsigned int devfn, | ||
81 | int offset, int len, u32 val); | ||
82 | extern int tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn, | ||
83 | int offset, int len, u32 * val); | ||
84 | extern void tsi108_clear_pci_error(u32 pci_cfg_base); | ||
85 | |||
86 | extern phys_addr_t get_csrbase(void); | ||
87 | |||
88 | typedef struct { | ||
89 | u32 regs; /* hw registers base address */ | ||
90 | u32 phyregs; /* phy registers base address */ | ||
91 | u16 phy; /* phy address */ | ||
92 | u16 irq_num; /* irq number */ | ||
93 | u8 mac_addr[6]; /* phy mac address */ | ||
94 | } hw_info; | ||
95 | |||
96 | extern u32 get_vir_csrbase(void); | ||
97 | extern u32 tsi108_csr_vir_base; | ||
98 | |||
99 | extern inline u32 tsi108_read_reg(u32 reg_offset) | ||
100 | { | ||
101 | return in_be32((volatile u32 *)(tsi108_csr_vir_base + reg_offset)); | ||
102 | } | ||
103 | |||
104 | extern inline void tsi108_write_reg(u32 reg_offset, u32 val) | ||
105 | { | ||
106 | out_be32((volatile u32 *)(tsi108_csr_vir_base + reg_offset), val); | ||
107 | } | ||
108 | |||
109 | #endif /* __PPC_KERNEL_TSI108_H */ | ||