2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2004-2017 Cavium, Inc.
7 * Copyright (C) 2008 Wind River Systems
10 #include <linux/etherdevice.h>
11 #include <linux/of_platform.h>
12 #include <linux/of_fdt.h>
13 #include <linux/libfdt.h>
15 #include <asm/octeon/octeon.h>
16 #include <asm/octeon/cvmx-helper-board.h>
19 #include <linux/usb/ehci_def.h>
20 #include <linux/usb/ehci_pdriver.h>
21 #include <linux/usb/ohci_pdriver.h>
22 #include <asm/octeon/cvmx-uctlx-defs.h>
24 #define CVMX_UAHCX_EHCI_USBCMD (CVMX_ADD_IO_SEG(0x00016F0000000010ull))
25 #define CVMX_UAHCX_OHCI_USBCMD (CVMX_ADD_IO_SEG(0x00016F0000000408ull))
27 static DEFINE_MUTEX(octeon2_usb_clocks_mutex);
29 static int octeon2_usb_clock_start_cnt;
31 static int __init octeon2_usb_reset(void)
33 union cvmx_uctlx_clk_rst_ctl clk_rst_ctl;
36 if (!OCTEON_IS_OCTEON2())
39 clk_rst_ctl.u64 = cvmx_read_csr(CVMX_UCTLX_CLK_RST_CTL(0));
40 if (clk_rst_ctl.s.hrst) {
41 ucmd = cvmx_read64_uint32(CVMX_UAHCX_EHCI_USBCMD);
43 cvmx_write64_uint32(CVMX_UAHCX_EHCI_USBCMD, ucmd);
46 cvmx_write64_uint32(CVMX_UAHCX_EHCI_USBCMD, ucmd);
47 ucmd = cvmx_read64_uint32(CVMX_UAHCX_OHCI_USBCMD);
49 cvmx_write64_uint32(CVMX_UAHCX_OHCI_USBCMD, ucmd);
54 arch_initcall(octeon2_usb_reset);
56 static void octeon2_usb_clocks_start(struct device *dev)
59 union cvmx_uctlx_if_ena if_ena;
60 union cvmx_uctlx_clk_rst_ctl clk_rst_ctl;
61 union cvmx_uctlx_uphy_portx_ctl_status port_ctl_status;
63 unsigned long io_clk_64_to_ns;
64 u32 clock_rate = 12000000;
65 bool is_crystal_clock = false;
68 mutex_lock(&octeon2_usb_clocks_mutex);
70 octeon2_usb_clock_start_cnt++;
71 if (octeon2_usb_clock_start_cnt != 1)
74 io_clk_64_to_ns = 64000000000ull / octeon_get_io_clock_rate();
77 struct device_node *uctl_node;
78 const char *clock_type;
80 uctl_node = of_get_parent(dev->of_node);
82 dev_err(dev, "No UCTL device node\n");
85 i = of_property_read_u32(uctl_node,
86 "refclk-frequency", &clock_rate);
88 dev_err(dev, "No UCTL \"refclk-frequency\"\n");
91 i = of_property_read_string(uctl_node,
92 "refclk-type", &clock_type);
94 if (!i && strcmp("crystal", clock_type) == 0)
95 is_crystal_clock = true;
99 * Step 1: Wait for voltages stable. That surely happened
100 * before starting the kernel.
102 * Step 2: Enable SCLK of UCTL by writing UCTL0_IF_ENA[EN] = 1
106 cvmx_write_csr(CVMX_UCTLX_IF_ENA(0), if_ena.u64);
108 for (i = 0; i <= 1; i++) {
109 port_ctl_status.u64 =
110 cvmx_read_csr(CVMX_UCTLX_UPHY_PORTX_CTL_STATUS(i, 0));
111 /* Set txvreftune to 15 to obtain compliant 'eye' diagram. */
112 port_ctl_status.s.txvreftune = 15;
113 port_ctl_status.s.txrisetune = 1;
114 port_ctl_status.s.txpreemphasistune = 1;
115 cvmx_write_csr(CVMX_UCTLX_UPHY_PORTX_CTL_STATUS(i, 0),
116 port_ctl_status.u64);
119 /* Step 3: Configure the reference clock, PHY, and HCLK */
120 clk_rst_ctl.u64 = cvmx_read_csr(CVMX_UCTLX_CLK_RST_CTL(0));
123 * If the UCTL looks like it has already been started, skip
124 * the initialization, otherwise bus errors are obtained.
126 if (clk_rst_ctl.s.hrst)
129 clk_rst_ctl.s.p_por = 1;
130 clk_rst_ctl.s.hrst = 0;
131 clk_rst_ctl.s.p_prst = 0;
132 clk_rst_ctl.s.h_clkdiv_rst = 0;
133 clk_rst_ctl.s.o_clkdiv_rst = 0;
134 clk_rst_ctl.s.h_clkdiv_en = 0;
135 clk_rst_ctl.s.o_clkdiv_en = 0;
136 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
139 clk_rst_ctl.s.p_refclk_sel = is_crystal_clock ? 0 : 1;
140 switch (clock_rate) {
142 pr_err("Invalid UCTL clock rate of %u, using 12000000 instead\n",
146 clk_rst_ctl.s.p_refclk_div = 0;
149 clk_rst_ctl.s.p_refclk_div = 1;
152 clk_rst_ctl.s.p_refclk_div = 2;
155 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
158 div = octeon_get_io_clock_rate() / 130000000ull;
186 clk_rst_ctl.s.h_div = div;
187 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
189 clk_rst_ctl.u64 = cvmx_read_csr(CVMX_UCTLX_CLK_RST_CTL(0));
190 clk_rst_ctl.s.h_clkdiv_en = 1;
191 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
193 clk_rst_ctl.s.h_clkdiv_rst = 1;
194 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
196 /* 3e: delay 64 io clocks */
197 ndelay(io_clk_64_to_ns);
200 * Step 4: Program the power-on reset field in the UCTL
201 * clock-reset-control register.
203 clk_rst_ctl.s.p_por = 0;
204 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
206 /* Step 5: Wait 3 ms for the PHY clock to start. */
209 /* Steps 6..9 for ATE only, are skipped. */
211 /* Step 10: Configure the OHCI_CLK48 and OHCI_CLK12 clocks. */
213 clk_rst_ctl.s.o_clkdiv_rst = 1;
214 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
217 clk_rst_ctl.s.o_clkdiv_en = 1;
218 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
221 ndelay(io_clk_64_to_ns);
224 * Step 11: Program the PHY reset field:
225 * UCTL0_CLK_RST_CTL[P_PRST] = 1
227 clk_rst_ctl.s.p_prst = 1;
228 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
234 clk_rst_ctl.s.p_prst = 0;
235 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
241 clk_rst_ctl.s.p_prst = 1;
242 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
244 /* Step 12: Wait 1 uS. */
247 /* Step 13: Program the HRESET_N field: UCTL0_CLK_RST_CTL[HRST] = 1 */
248 clk_rst_ctl.s.hrst = 1;
249 cvmx_write_csr(CVMX_UCTLX_CLK_RST_CTL(0), clk_rst_ctl.u64);
252 /* Set uSOF cycle period to 60,000 bits. */
253 cvmx_write_csr(CVMX_UCTLX_EHCI_FLA(0), 0x20ull);
256 mutex_unlock(&octeon2_usb_clocks_mutex);
259 static void octeon2_usb_clocks_stop(void)
261 mutex_lock(&octeon2_usb_clocks_mutex);
262 octeon2_usb_clock_start_cnt--;
263 mutex_unlock(&octeon2_usb_clocks_mutex);
266 static int octeon_ehci_power_on(struct platform_device *pdev)
268 octeon2_usb_clocks_start(&pdev->dev);
272 static void octeon_ehci_power_off(struct platform_device *pdev)
274 octeon2_usb_clocks_stop();
277 static struct usb_ehci_pdata octeon_ehci_pdata = {
278 /* Octeon EHCI matches CPU endianness. */
280 .big_endian_mmio = 1,
283 * We can DMA from anywhere. But the descriptors must be in
287 .power_on = octeon_ehci_power_on,
288 .power_off = octeon_ehci_power_off,
291 static void __init octeon_ehci_hw_start(struct device *dev)
293 union cvmx_uctlx_ehci_ctl ehci_ctl;
295 octeon2_usb_clocks_start(dev);
297 ehci_ctl.u64 = cvmx_read_csr(CVMX_UCTLX_EHCI_CTL(0));
298 /* Use 64-bit addressing. */
299 ehci_ctl.s.ehci_64b_addr_en = 1;
300 ehci_ctl.s.l2c_addr_msb = 0;
302 ehci_ctl.s.l2c_buff_emod = 1; /* Byte swapped. */
303 ehci_ctl.s.l2c_desc_emod = 1; /* Byte swapped. */
305 ehci_ctl.s.l2c_buff_emod = 0; /* not swapped. */
306 ehci_ctl.s.l2c_desc_emod = 0; /* not swapped. */
307 ehci_ctl.s.inv_reg_a2 = 1;
309 cvmx_write_csr(CVMX_UCTLX_EHCI_CTL(0), ehci_ctl.u64);
311 octeon2_usb_clocks_stop();
314 static int __init octeon_ehci_device_init(void)
316 struct platform_device *pd;
317 struct device_node *ehci_node;
320 ehci_node = of_find_node_by_name(NULL, "ehci");
324 pd = of_find_device_by_node(ehci_node);
325 of_node_put(ehci_node);
329 pd->dev.platform_data = &octeon_ehci_pdata;
330 octeon_ehci_hw_start(&pd->dev);
331 put_device(&pd->dev);
335 device_initcall(octeon_ehci_device_init);
337 static int octeon_ohci_power_on(struct platform_device *pdev)
339 octeon2_usb_clocks_start(&pdev->dev);
343 static void octeon_ohci_power_off(struct platform_device *pdev)
345 octeon2_usb_clocks_stop();
348 static struct usb_ohci_pdata octeon_ohci_pdata = {
349 /* Octeon OHCI matches CPU endianness. */
351 .big_endian_mmio = 1,
353 .power_on = octeon_ohci_power_on,
354 .power_off = octeon_ohci_power_off,
357 static void __init octeon_ohci_hw_start(struct device *dev)
359 union cvmx_uctlx_ohci_ctl ohci_ctl;
361 octeon2_usb_clocks_start(dev);
363 ohci_ctl.u64 = cvmx_read_csr(CVMX_UCTLX_OHCI_CTL(0));
364 ohci_ctl.s.l2c_addr_msb = 0;
366 ohci_ctl.s.l2c_buff_emod = 1; /* Byte swapped. */
367 ohci_ctl.s.l2c_desc_emod = 1; /* Byte swapped. */
369 ohci_ctl.s.l2c_buff_emod = 0; /* not swapped. */
370 ohci_ctl.s.l2c_desc_emod = 0; /* not swapped. */
371 ohci_ctl.s.inv_reg_a2 = 1;
373 cvmx_write_csr(CVMX_UCTLX_OHCI_CTL(0), ohci_ctl.u64);
375 octeon2_usb_clocks_stop();
378 static int __init octeon_ohci_device_init(void)
380 struct platform_device *pd;
381 struct device_node *ohci_node;
384 ohci_node = of_find_node_by_name(NULL, "ohci");
388 pd = of_find_device_by_node(ohci_node);
389 of_node_put(ohci_node);
393 pd->dev.platform_data = &octeon_ohci_pdata;
394 octeon_ohci_hw_start(&pd->dev);
395 put_device(&pd->dev);
399 device_initcall(octeon_ohci_device_init);
401 #endif /* CONFIG_USB */
403 /* Octeon Random Number Generator. */
404 static int __init octeon_rng_device_init(void)
406 struct platform_device *pd;
409 struct resource rng_resources[] = {
411 .flags = IORESOURCE_MEM,
412 .start = XKPHYS_TO_PHYS(CVMX_RNM_CTL_STATUS),
413 .end = XKPHYS_TO_PHYS(CVMX_RNM_CTL_STATUS) + 0xf
415 .flags = IORESOURCE_MEM,
416 .start = cvmx_build_io_address(8, 0),
417 .end = cvmx_build_io_address(8, 0) + 0x7
421 pd = platform_device_alloc("octeon_rng", -1);
427 ret = platform_device_add_resources(pd, rng_resources,
428 ARRAY_SIZE(rng_resources));
432 ret = platform_device_add(pd);
438 platform_device_put(pd);
443 device_initcall(octeon_rng_device_init);
445 const struct of_device_id octeon_ids[] __initconst = {
446 { .compatible = "simple-bus", },
447 { .compatible = "cavium,octeon-6335-uctl", },
448 { .compatible = "cavium,octeon-5750-usbn", },
449 { .compatible = "cavium,octeon-3860-bootbus", },
450 { .compatible = "cavium,mdio-mux", },
451 { .compatible = "gpio-leds", },
452 { .compatible = "cavium,octeon-7130-usb-uctl", },
456 static bool __init octeon_has_88e1145(void)
458 return !OCTEON_IS_MODEL(OCTEON_CN52XX) &&
459 !OCTEON_IS_MODEL(OCTEON_CN6XXX) &&
460 !OCTEON_IS_MODEL(OCTEON_CN56XX);
463 static void __init octeon_fdt_set_phy(int eth, int phy_addr)
465 const __be32 *phy_handle;
466 const __be32 *alt_phy_handle;
475 phy_handle = fdt_getprop(initial_boot_params, eth, "phy-handle", NULL);
479 phandle = be32_to_cpup(phy_handle);
480 phy = fdt_node_offset_by_phandle(initial_boot_params, phandle);
482 alt_phy_handle = fdt_getprop(initial_boot_params, eth, "cavium,alt-phy-handle", NULL);
483 if (alt_phy_handle) {
484 u32 alt_phandle = be32_to_cpup(alt_phy_handle);
486 alt_phy = fdt_node_offset_by_phandle(initial_boot_params, alt_phandle);
491 if (phy_addr < 0 || phy < 0) {
492 /* Delete the PHY things */
493 fdt_nop_property(initial_boot_params, eth, "phy-handle");
494 /* This one may fail */
495 fdt_nop_property(initial_boot_params, eth, "cavium,alt-phy-handle");
497 fdt_nop_node(initial_boot_params, phy);
499 fdt_nop_node(initial_boot_params, alt_phy);
503 if (phy_addr >= 256 && alt_phy > 0) {
504 const struct fdt_property *phy_prop;
505 struct fdt_property *alt_prop;
506 fdt32_t phy_handle_name;
508 /* Use the alt phy node instead.*/
509 phy_prop = fdt_get_property(initial_boot_params, eth, "phy-handle", NULL);
510 phy_handle_name = phy_prop->nameoff;
511 fdt_nop_node(initial_boot_params, phy);
512 fdt_nop_property(initial_boot_params, eth, "phy-handle");
513 alt_prop = fdt_get_property_w(initial_boot_params, eth, "cavium,alt-phy-handle", NULL);
514 alt_prop->nameoff = phy_handle_name;
520 if (octeon_has_88e1145()) {
521 fdt_nop_property(initial_boot_params, phy, "marvell,reg-init");
522 memset(new_name, 0, sizeof(new_name));
523 strcpy(new_name, "marvell,88e1145");
524 p = fdt_getprop(initial_boot_params, phy, "compatible",
526 if (p && current_len >= strlen(new_name))
527 fdt_setprop_inplace(initial_boot_params, phy,
528 "compatible", new_name, current_len);
531 reg = fdt_getprop(initial_boot_params, phy, "reg", NULL);
532 if (phy_addr == be32_to_cpup(reg))
535 fdt_setprop_inplace_cell(initial_boot_params, phy, "reg", phy_addr);
537 snprintf(new_name, sizeof(new_name), "ethernet-phy@%x", phy_addr);
539 p = fdt_get_name(initial_boot_params, phy, ¤t_len);
540 if (p && current_len == strlen(new_name))
541 fdt_set_name(initial_boot_params, phy, new_name);
543 pr_err("Error: could not rename ethernet phy: <%s>", p);
546 static void __init octeon_fdt_set_mac_addr(int n, u64 *pmac)
554 old_mac = fdt_getprop(initial_boot_params, n, "local-mac-address",
556 if (!old_mac || old_len != 6 || is_valid_ether_addr(old_mac))
559 new_mac[0] = (mac >> 40) & 0xff;
560 new_mac[1] = (mac >> 32) & 0xff;
561 new_mac[2] = (mac >> 24) & 0xff;
562 new_mac[3] = (mac >> 16) & 0xff;
563 new_mac[4] = (mac >> 8) & 0xff;
564 new_mac[5] = mac & 0xff;
566 r = fdt_setprop_inplace(initial_boot_params, n, "local-mac-address",
567 new_mac, sizeof(new_mac));
570 pr_err("Setting \"local-mac-address\" failed %d", r);
576 static void __init octeon_fdt_rm_ethernet(int node)
578 const __be32 *phy_handle;
580 phy_handle = fdt_getprop(initial_boot_params, node, "phy-handle", NULL);
582 u32 ph = be32_to_cpup(phy_handle);
583 int p = fdt_node_offset_by_phandle(initial_boot_params, ph);
586 fdt_nop_node(initial_boot_params, p);
588 fdt_nop_node(initial_boot_params, node);
591 static void __init octeon_fdt_pip_port(int iface, int i, int p, int max)
593 char name_buffer[20];
598 snprintf(name_buffer, sizeof(name_buffer), "ethernet@%x", p);
599 eth = fdt_subnode_offset(initial_boot_params, iface, name_buffer);
603 pr_debug("Deleting port %x:%x\n", i, p);
604 octeon_fdt_rm_ethernet(eth);
607 if (OCTEON_IS_MODEL(OCTEON_CN68XX))
608 ipd_port = (0x100 * i) + (0x10 * p) + 0x800;
610 ipd_port = 16 * i + p;
612 phy_addr = cvmx_helper_board_get_mii_address(ipd_port);
613 octeon_fdt_set_phy(eth, phy_addr);
616 static void __init octeon_fdt_pip_iface(int pip, int idx)
618 char name_buffer[20];
623 snprintf(name_buffer, sizeof(name_buffer), "interface@%d", idx);
624 iface = fdt_subnode_offset(initial_boot_params, pip, name_buffer);
628 if (cvmx_helper_interface_enumerate(idx) == 0)
629 count = cvmx_helper_ports_on_interface(idx);
631 for (p = 0; p < 16; p++)
632 octeon_fdt_pip_port(iface, idx, p, count - 1);
635 void __init octeon_fill_mac_addresses(void)
637 const char *alias_prop;
638 char name_buffer[20];
644 aliases = fdt_path_offset(initial_boot_params, "/aliases");
649 ((octeon_bootinfo->mac_addr_base[0] & 0xffull)) << 40 |
650 ((octeon_bootinfo->mac_addr_base[1] & 0xffull)) << 32 |
651 ((octeon_bootinfo->mac_addr_base[2] & 0xffull)) << 24 |
652 ((octeon_bootinfo->mac_addr_base[3] & 0xffull)) << 16 |
653 ((octeon_bootinfo->mac_addr_base[4] & 0xffull)) << 8 |
654 (octeon_bootinfo->mac_addr_base[5] & 0xffull);
656 for (i = 0; i < 2; i++) {
659 snprintf(name_buffer, sizeof(name_buffer), "mix%d", i);
660 alias_prop = fdt_getprop(initial_boot_params, aliases,
664 mgmt = fdt_path_offset(initial_boot_params, alias_prop);
667 octeon_fdt_set_mac_addr(mgmt, &mac_addr_base);
670 alias_prop = fdt_getprop(initial_boot_params, aliases, "pip", NULL);
674 pip = fdt_path_offset(initial_boot_params, alias_prop);
678 for (i = 0; i <= 4; i++) {
682 snprintf(name_buffer, sizeof(name_buffer), "interface@%d", i);
683 iface = fdt_subnode_offset(initial_boot_params, pip,
687 for (p = 0; p < 16; p++) {
690 snprintf(name_buffer, sizeof(name_buffer),
692 eth = fdt_subnode_offset(initial_boot_params, iface,
696 octeon_fdt_set_mac_addr(eth, &mac_addr_base);
701 int __init octeon_prune_device_tree(void)
703 int i, max_port, uart_mask;
704 const char *pip_path;
705 const char *alias_prop;
706 char name_buffer[20];
709 if (fdt_check_header(initial_boot_params))
710 panic("Corrupt Device Tree.");
712 WARN(octeon_bootinfo->board_type == CVMX_BOARD_TYPE_CUST_DSR1000N,
713 "Built-in DTB booting is deprecated on %s. Please switch to use appended DTB.",
714 cvmx_board_type_to_string(octeon_bootinfo->board_type));
716 aliases = fdt_path_offset(initial_boot_params, "/aliases");
718 pr_err("Error: No /aliases node in device tree.");
722 if (OCTEON_IS_MODEL(OCTEON_CN52XX) || OCTEON_IS_MODEL(OCTEON_CN63XX))
724 else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN68XX))
729 if (octeon_bootinfo->board_type == CVMX_BOARD_TYPE_NIC10E)
732 for (i = 0; i < 2; i++) {
735 snprintf(name_buffer, sizeof(name_buffer),
737 alias_prop = fdt_getprop(initial_boot_params, aliases,
740 mgmt = fdt_path_offset(initial_boot_params, alias_prop);
744 pr_debug("Deleting mix%d\n", i);
745 octeon_fdt_rm_ethernet(mgmt);
746 fdt_nop_property(initial_boot_params, aliases,
749 int phy_addr = cvmx_helper_board_get_mii_address(CVMX_HELPER_BOARD_MGMT_IPD_PORT + i);
751 octeon_fdt_set_phy(mgmt, phy_addr);
756 pip_path = fdt_getprop(initial_boot_params, aliases, "pip", NULL);
758 int pip = fdt_path_offset(initial_boot_params, pip_path);
761 for (i = 0; i <= 4; i++)
762 octeon_fdt_pip_iface(pip, i);
766 if (OCTEON_IS_MODEL(OCTEON_CN52XX) ||
767 OCTEON_IS_MODEL(OCTEON_CN63XX) ||
768 OCTEON_IS_MODEL(OCTEON_CN68XX) ||
769 OCTEON_IS_MODEL(OCTEON_CN56XX))
774 for (i = 0; i < 2; i++) {
777 snprintf(name_buffer, sizeof(name_buffer),
779 alias_prop = fdt_getprop(initial_boot_params, aliases,
783 i2c = fdt_path_offset(initial_boot_params, alias_prop);
787 pr_debug("Deleting twsi%d\n", i);
788 fdt_nop_node(initial_boot_params, i2c);
789 fdt_nop_property(initial_boot_params, aliases,
796 if (OCTEON_IS_MODEL(OCTEON_CN68XX))
798 else if (OCTEON_IS_MODEL(OCTEON_CN52XX) ||
799 OCTEON_IS_MODEL(OCTEON_CN63XX) ||
800 OCTEON_IS_MODEL(OCTEON_CN56XX))
805 for (i = 0; i < 2; i++) {
808 snprintf(name_buffer, sizeof(name_buffer),
810 alias_prop = fdt_getprop(initial_boot_params, aliases,
813 i2c = fdt_path_offset(initial_boot_params, alias_prop);
817 pr_debug("Deleting smi%d\n", i);
818 fdt_nop_node(initial_boot_params, i2c);
819 fdt_nop_property(initial_boot_params, aliases,
828 /* Right now CN52XX is the only chip with a third uart */
829 if (OCTEON_IS_MODEL(OCTEON_CN52XX))
830 uart_mask |= 4; /* uart2 */
832 for (i = 0; i < 3; i++) {
835 snprintf(name_buffer, sizeof(name_buffer),
837 alias_prop = fdt_getprop(initial_boot_params, aliases,
841 uart = fdt_path_offset(initial_boot_params, alias_prop);
842 if (uart_mask & (1 << i)) {
845 f = cpu_to_be32(octeon_get_io_clock_rate());
846 fdt_setprop_inplace(initial_boot_params,
847 uart, "clock-frequency",
851 pr_debug("Deleting uart%d\n", i);
852 fdt_nop_node(initial_boot_params, uart);
853 fdt_nop_property(initial_boot_params, aliases,
859 alias_prop = fdt_getprop(initial_boot_params, aliases,
862 union cvmx_mio_boot_reg_cfgx mio_boot_reg_cfg;
863 unsigned long base_ptr, region_base, region_size;
864 unsigned long region1_base = 0;
865 unsigned long region1_size = 0;
867 bool is_16bit = false;
868 bool is_true_ide = false;
873 int cf = fdt_path_offset(initial_boot_params, alias_prop);
876 if (octeon_bootinfo->major_version == 1
877 && octeon_bootinfo->minor_version >= 1) {
878 if (octeon_bootinfo->compact_flash_common_base_addr)
879 base_ptr = octeon_bootinfo->compact_flash_common_base_addr;
881 base_ptr = 0x1d000800;
887 /* Find CS0 region. */
888 for (cs = 0; cs < 8; cs++) {
889 mio_boot_reg_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs));
890 region_base = mio_boot_reg_cfg.s.base << 16;
891 region_size = (mio_boot_reg_cfg.s.size + 1) << 16;
892 if (mio_boot_reg_cfg.s.en && base_ptr >= region_base
893 && base_ptr < region_base + region_size) {
894 is_16bit = mio_boot_reg_cfg.s.width;
899 /* cs and cs + 1 are CS0 and CS1, both must be less than 8. */
903 if (!(base_ptr & 0xfffful)) {
905 * Boot loader signals availability of DMA (true_ide
906 * mode) by setting low order bits of base_ptr to
910 /* Asume that CS1 immediately follows. */
911 mio_boot_reg_cfg.u64 =
912 cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs + 1));
913 region1_base = mio_boot_reg_cfg.s.base << 16;
914 region1_size = (mio_boot_reg_cfg.s.size + 1) << 16;
915 if (!mio_boot_reg_cfg.s.en)
920 fdt_nop_property(initial_boot_params, cf, "cavium,true-ide");
921 fdt_nop_property(initial_boot_params, cf, "cavium,dma-engine-handle");
923 __be32 width = cpu_to_be32(8);
925 fdt_setprop_inplace(initial_boot_params, cf,
926 "cavium,bus-width", &width, sizeof(width));
929 new_reg[0] = cpu_to_be32(cs);
930 new_reg[1] = cpu_to_be32(0);
931 new_reg[2] = cpu_to_be32(0x10000);
932 new_reg[3] = cpu_to_be32(cs + 1);
933 new_reg[4] = cpu_to_be32(0);
934 new_reg[5] = cpu_to_be32(0x10000);
935 fdt_setprop_inplace(initial_boot_params, cf,
936 "reg", new_reg, sizeof(new_reg));
938 bootbus = fdt_parent_offset(initial_boot_params, cf);
941 ranges = fdt_getprop_w(initial_boot_params, bootbus, "ranges", &len);
942 if (!ranges || len < (5 * 8 * sizeof(__be32)))
945 ranges[(cs * 5) + 2] = cpu_to_be32(region_base >> 32);
946 ranges[(cs * 5) + 3] = cpu_to_be32(region_base & 0xffffffff);
947 ranges[(cs * 5) + 4] = cpu_to_be32(region_size);
950 ranges[(cs * 5) + 2] = cpu_to_be32(region1_base >> 32);
951 ranges[(cs * 5) + 3] = cpu_to_be32(region1_base & 0xffffffff);
952 ranges[(cs * 5) + 4] = cpu_to_be32(region1_size);
956 fdt_nop_node(initial_boot_params, cf);
963 alias_prop = fdt_getprop(initial_boot_params, aliases,
966 union cvmx_mio_boot_reg_cfgx mio_boot_reg_cfg;
967 unsigned long base_ptr, region_base, region_size;
972 int led = fdt_path_offset(initial_boot_params, alias_prop);
974 base_ptr = octeon_bootinfo->led_display_base_addr;
977 /* Find CS0 region. */
978 for (cs = 0; cs < 8; cs++) {
979 mio_boot_reg_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs));
980 region_base = mio_boot_reg_cfg.s.base << 16;
981 region_size = (mio_boot_reg_cfg.s.size + 1) << 16;
982 if (mio_boot_reg_cfg.s.en && base_ptr >= region_base
983 && base_ptr < region_base + region_size)
990 new_reg[0] = cpu_to_be32(cs);
991 new_reg[1] = cpu_to_be32(0x20);
992 new_reg[2] = cpu_to_be32(0x20);
993 new_reg[3] = cpu_to_be32(cs);
994 new_reg[4] = cpu_to_be32(0);
995 new_reg[5] = cpu_to_be32(0x20);
996 fdt_setprop_inplace(initial_boot_params, led,
997 "reg", new_reg, sizeof(new_reg));
999 bootbus = fdt_parent_offset(initial_boot_params, led);
1002 ranges = fdt_getprop_w(initial_boot_params, bootbus, "ranges", &len);
1003 if (!ranges || len < (5 * 8 * sizeof(__be32)))
1006 ranges[(cs * 5) + 2] = cpu_to_be32(region_base >> 32);
1007 ranges[(cs * 5) + 3] = cpu_to_be32(region_base & 0xffffffff);
1008 ranges[(cs * 5) + 4] = cpu_to_be32(region_size);
1012 fdt_nop_node(initial_boot_params, led);
1019 alias_prop = fdt_getprop(initial_boot_params, aliases,
1022 int uctl = fdt_path_offset(initial_boot_params, alias_prop);
1024 if (uctl >= 0 && (!OCTEON_IS_MODEL(OCTEON_CN6XXX) ||
1025 octeon_bootinfo->board_type == CVMX_BOARD_TYPE_NIC2E)) {
1026 pr_debug("Deleting uctl\n");
1027 fdt_nop_node(initial_boot_params, uctl);
1028 fdt_nop_property(initial_boot_params, aliases, "uctl");
1029 } else if (octeon_bootinfo->board_type == CVMX_BOARD_TYPE_NIC10E ||
1030 octeon_bootinfo->board_type == CVMX_BOARD_TYPE_NIC4E) {
1031 /* Missing "refclk-type" defaults to crystal. */
1032 fdt_nop_property(initial_boot_params, uctl, "refclk-type");
1037 alias_prop = fdt_getprop(initial_boot_params, aliases,
1040 int usbn = fdt_path_offset(initial_boot_params, alias_prop);
1042 if (usbn >= 0 && (current_cpu_type() == CPU_CAVIUM_OCTEON2 ||
1043 !octeon_has_feature(OCTEON_FEATURE_USB))) {
1044 pr_debug("Deleting usbn\n");
1045 fdt_nop_node(initial_boot_params, usbn);
1046 fdt_nop_property(initial_boot_params, aliases, "usbn");
1049 enum cvmx_helper_board_usb_clock_types c;
1051 c = __cvmx_helper_board_usb_get_clock_type();
1053 case USB_CLOCK_TYPE_REF_48:
1054 new_f[0] = cpu_to_be32(48000000);
1055 fdt_setprop_inplace(initial_boot_params, usbn,
1056 "refclk-frequency", new_f, sizeof(new_f));
1057 /* Fall through ...*/
1058 case USB_CLOCK_TYPE_REF_12:
1059 /* Missing "refclk-type" defaults to external. */
1060 fdt_nop_property(initial_boot_params, usbn, "refclk-type");
1072 static int __init octeon_publish_devices(void)
1074 return of_platform_bus_probe(NULL, octeon_ids, NULL);
1076 arch_initcall(octeon_publish_devices);