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authorVitaly Bordug <vbordug@ru.mvista.com>2006-09-21 09:26:34 -0400
committerVitaly Bordug <vbordug@ru.mvista.com>2006-09-21 09:26:34 -0400
commitfba43665360d361d338efd120a34ad615ca960d8 (patch)
treee1dcc1f4948a4d4c2051b1b344bd5bdf26a55d0b /arch/powerpc/sysdev
parent7dcd86e14319f4ceab883787ab2e00a5f860d14d (diff)
POWERPC: Add cpm2 stuff support to the fsl_soc.c
This patch contains necessary modifications to support the CPM2 SoC peripherals. For the time being, those are fs_enet Ethernet driver and cpm_uart serial. Written initially to support mpc8560, it also suites to the part of the large PQ2 (more specifically, mpc8260) family. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/fsl_soc.c268
-rw-r--r--arch/powerpc/sysdev/fsl_soc.h2
2 files changed, 265 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 92ba378b7990..0ed2aaee105c 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -3,6 +3,9 @@
3 * 3 *
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information) 4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
5 * 5 *
6 * 2006 (c) MontaVista Software, Inc.
7 * Vitaly Bordug <vbordug@ru.mvista.com>
8 *
6 * This program is free software; you can redistribute it and/or modify it 9 * 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 10 * 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 11 * Free Software Foundation; either version 2 of the License, or (at your
@@ -20,14 +23,18 @@
20#include <linux/device.h> 23#include <linux/device.h>
21#include <linux/platform_device.h> 24#include <linux/platform_device.h>
22#include <linux/fsl_devices.h> 25#include <linux/fsl_devices.h>
26#include <linux/fs_enet_pd.h>
27#include <linux/fs_uart_pd.h>
23 28
24#include <asm/system.h> 29#include <asm/system.h>
25#include <asm/atomic.h> 30#include <asm/atomic.h>
26#include <asm/io.h> 31#include <asm/io.h>
27#include <asm/irq.h> 32#include <asm/irq.h>
33#include <asm/time.h>
28#include <asm/prom.h> 34#include <asm/prom.h>
29#include <sysdev/fsl_soc.h> 35#include <sysdev/fsl_soc.h>
30#include <mm/mmu_decl.h> 36#include <mm/mmu_decl.h>
37#include <asm/cpm2.h>
31 38
32static phys_addr_t immrbase = -1; 39static phys_addr_t immrbase = -1;
33 40
@@ -42,7 +49,9 @@ phys_addr_t get_immrbase(void)
42 if (soc) { 49 if (soc) {
43 unsigned int size; 50 unsigned int size;
44 const void *prop = get_property(soc, "reg", &size); 51 const void *prop = get_property(soc, "reg", &size);
45 immrbase = of_translate_address(soc, prop); 52
53 if (prop)
54 immrbase = of_translate_address(soc, prop);
46 of_node_put(soc); 55 of_node_put(soc);
47 }; 56 };
48 57
@@ -51,6 +60,59 @@ phys_addr_t get_immrbase(void)
51 60
52EXPORT_SYMBOL(get_immrbase); 61EXPORT_SYMBOL(get_immrbase);
53 62
63#ifdef CONFIG_CPM2
64
65static u32 brgfreq = -1;
66
67u32 get_brgfreq(void)
68{
69 struct device_node *node;
70
71 if (brgfreq != -1)
72 return brgfreq;
73
74 node = of_find_node_by_type(NULL, "cpm");
75 if (node) {
76 unsigned int size;
77 const unsigned int *prop = get_property(node, "brg-frequency",
78 &size);
79
80 if (prop)
81 brgfreq = *prop;
82 of_node_put(node);
83 };
84
85 return brgfreq;
86}
87
88EXPORT_SYMBOL(get_brgfreq);
89
90static u32 fs_baudrate = -1;
91
92u32 get_baudrate(void)
93{
94 struct device_node *node;
95
96 if (fs_baudrate != -1)
97 return fs_baudrate;
98
99 node = of_find_node_by_type(NULL, "serial");
100 if (node) {
101 unsigned int size;
102 const unsigned int *prop = get_property(node, "current-speed",
103 &size);
104
105 if (prop)
106 fs_baudrate = *prop;
107 of_node_put(node);
108 };
109
110 return fs_baudrate;
111}
112
113EXPORT_SYMBOL(get_baudrate);
114#endif /* CONFIG_CPM2 */
115
54static int __init gfar_mdio_of_init(void) 116static int __init gfar_mdio_of_init(void)
55{ 117{
56 struct device_node *np; 118 struct device_node *np;
@@ -85,8 +147,11 @@ static int __init gfar_mdio_of_init(void)
85 mdio_data.irq[k] = -1; 147 mdio_data.irq[k] = -1;
86 148
87 while ((child = of_get_next_child(np, child)) != NULL) { 149 while ((child = of_get_next_child(np, child)) != NULL) {
88 const u32 *id = get_property(child, "reg", NULL); 150 int irq = irq_of_parse_and_map(child, 0);
89 mdio_data.irq[*id] = irq_of_parse_and_map(child, 0); 151 if (irq != NO_IRQ) {
152 const u32 *id = get_property(child, "reg", NULL);
153 mdio_data.irq[*id] = irq;
154 }
90 } 155 }
91 156
92 ret = 157 ret =
@@ -128,7 +193,7 @@ static int __init gfar_of_init(void)
128 const char *model; 193 const char *model;
129 const void *mac_addr; 194 const void *mac_addr;
130 const phandle *ph; 195 const phandle *ph;
131 int n_res = 1; 196 int n_res = 2;
132 197
133 memset(r, 0, sizeof(r)); 198 memset(r, 0, sizeof(r));
134 memset(&gfar_data, 0, sizeof(gfar_data)); 199 memset(&gfar_data, 0, sizeof(gfar_data));
@@ -159,7 +224,7 @@ static int __init gfar_of_init(void)
159 224
160 gfar_dev = 225 gfar_dev =
161 platform_device_register_simple("fsl-gianfar", i, &r[0], 226 platform_device_register_simple("fsl-gianfar", i, &r[0],
162 n_res + 1); 227 n_res);
163 228
164 if (IS_ERR(gfar_dev)) { 229 if (IS_ERR(gfar_dev)) {
165 ret = PTR_ERR(gfar_dev); 230 ret = PTR_ERR(gfar_dev);
@@ -478,3 +543,196 @@ err:
478} 543}
479 544
480arch_initcall(fsl_usb_of_init); 545arch_initcall(fsl_usb_of_init);
546
547#ifdef CONFIG_CPM2
548
549static const char fcc_regs[] = "fcc_regs";
550static const char fcc_regs_c[] = "fcc_regs_c";
551static const char fcc_pram[] = "fcc_pram";
552static char bus_id[9][BUS_ID_SIZE];
553
554static int __init fs_enet_of_init(void)
555{
556 struct device_node *np;
557 unsigned int i;
558 struct platform_device *fs_enet_dev;
559 struct resource res;
560 int ret;
561
562 for (np = NULL, i = 0;
563 (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
564 i++) {
565 struct resource r[4];
566 struct device_node *phy, *mdio;
567 struct fs_platform_info fs_enet_data;
568 const unsigned int *id, *phy_addr;
569 const void *mac_addr;
570 const phandle *ph;
571 const char *model;
572
573 memset(r, 0, sizeof(r));
574 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
575
576 ret = of_address_to_resource(np, 0, &r[0]);
577 if (ret)
578 goto err;
579 r[0].name = fcc_regs;
580
581 ret = of_address_to_resource(np, 1, &r[1]);
582 if (ret)
583 goto err;
584 r[1].name = fcc_pram;
585
586 ret = of_address_to_resource(np, 2, &r[2]);
587 if (ret)
588 goto err;
589 r[2].name = fcc_regs_c;
590
591 r[3].start = r[3].end = irq_of_parse_and_map(np, 0);
592 r[3].flags = IORESOURCE_IRQ;
593
594 fs_enet_dev =
595 platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4);
596
597 if (IS_ERR(fs_enet_dev)) {
598 ret = PTR_ERR(fs_enet_dev);
599 goto err;
600 }
601
602 model = get_property(np, "model", NULL);
603 if (model == NULL) {
604 ret = -ENODEV;
605 goto unreg;
606 }
607
608 mac_addr = get_property(np, "mac-address", NULL);
609 memcpy(fs_enet_data.macaddr, mac_addr, 6);
610
611 ph = get_property(np, "phy-handle", NULL);
612 phy = of_find_node_by_phandle(*ph);
613
614 if (phy == NULL) {
615 ret = -ENODEV;
616 goto unreg;
617 }
618
619 phy_addr = get_property(phy, "reg", NULL);
620 fs_enet_data.phy_addr = *phy_addr;
621
622 id = get_property(np, "device-id", NULL);
623 fs_enet_data.fs_no = *id;
624
625 mdio = of_get_parent(phy);
626 ret = of_address_to_resource(mdio, 0, &res);
627 if (ret) {
628 of_node_put(phy);
629 of_node_put(mdio);
630 goto unreg;
631 }
632
633 if (strstr(model, "FCC")) {
634 int fcc_index = fs_get_fcc_index(*id);
635
636 fs_enet_data.dpram_offset = (u32)cpm2_immr->im_dprambase;
637 fs_enet_data.rx_ring = 32;
638 fs_enet_data.tx_ring = 32;
639 fs_enet_data.rx_copybreak = 240;
640 fs_enet_data.use_napi = 0;
641 fs_enet_data.napi_weight = 17;
642 fs_enet_data.mem_offset = FCC_MEM_OFFSET(fcc_index);
643 fs_enet_data.cp_page = CPM_CR_FCC_PAGE(fcc_index);
644 fs_enet_data.cp_block = CPM_CR_FCC_SBLOCK(fcc_index);
645
646 snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x",
647 (u32)res.start, fs_enet_data.phy_addr);
648 fs_enet_data.bus_id = (char*)&bus_id[(*id)];
649 }
650
651 of_node_put(phy);
652 of_node_put(mdio);
653
654 ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
655 sizeof(struct
656 fs_platform_info));
657 if (ret)
658 goto unreg;
659 }
660 return 0;
661
662unreg:
663 platform_device_unregister(fs_enet_dev);
664err:
665 return ret;
666}
667
668arch_initcall(fs_enet_of_init);
669
670static const char scc_regs[] = "regs";
671static const char scc_pram[] = "pram";
672
673static int __init cpm_uart_of_init(void)
674{
675 struct device_node *np;
676 unsigned int i;
677 struct platform_device *cpm_uart_dev;
678 int ret;
679
680 for (np = NULL, i = 0;
681 (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
682 i++) {
683 struct resource r[3];
684 struct fs_uart_platform_info cpm_uart_data;
685 const int *id;
686
687 memset(r, 0, sizeof(r));
688 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
689
690 ret = of_address_to_resource(np, 0, &r[0]);
691 if (ret)
692 goto err;
693
694 r[0].name = scc_regs;
695
696 ret = of_address_to_resource(np, 1, &r[1]);
697 if (ret)
698 goto err;
699 r[1].name = scc_pram;
700
701 r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
702 r[2].flags = IORESOURCE_IRQ;
703
704 cpm_uart_dev =
705 platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3);
706
707 if (IS_ERR(cpm_uart_dev)) {
708 ret = PTR_ERR(cpm_uart_dev);
709 goto err;
710 }
711
712 id = get_property(np, "device-id", NULL);
713 cpm_uart_data.fs_no = *id;
714 cpm_uart_data.uart_clk = ppc_proc_freq;
715
716 cpm_uart_data.tx_num_fifo = 4;
717 cpm_uart_data.tx_buf_size = 32;
718 cpm_uart_data.rx_num_fifo = 4;
719 cpm_uart_data.rx_buf_size = 32;
720
721 ret =
722 platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
723 sizeof(struct
724 fs_uart_platform_info));
725 if (ret)
726 goto unreg;
727 }
728
729 return 0;
730
731unreg:
732 platform_device_unregister(cpm_uart_dev);
733err:
734 return ret;
735}
736
737arch_initcall(cpm_uart_of_init);
738#endif /* CONFIG_CPM2 */
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index c433d3f39edd..25230ceffbcf 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -3,6 +3,8 @@
3#ifdef __KERNEL__ 3#ifdef __KERNEL__
4 4
5extern phys_addr_t get_immrbase(void); 5extern phys_addr_t get_immrbase(void);
6extern u32 get_brgfreq(void);
7extern u32 get_baudrate(void);
6 8
7#endif 9#endif
8#endif 10#endif