Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /* central.c: Central FHC driver for Sunfire/Starfire/Wildfire.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Copyright (C) 1997, 1999, 2008 David S. Miller (davem@davemloft.net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <asm/fhc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <asm/upa.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) struct clock_board {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	void __iomem		*clock_freq_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	void __iomem		*clock_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	void __iomem		*clock_ver_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	int			num_slots;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	struct resource		leds_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	struct platform_device	leds_pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) struct fhc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	void __iomem		*pregs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	bool			central;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	bool			jtag_master;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	int			board_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct resource		leds_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct platform_device	leds_pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) static int clock_board_calc_nslots(struct clock_board *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	u8 reg = upa_readb(p->clock_regs + CLOCK_STAT1) & 0xc0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	case 0x40:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		return 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	case 0xc0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 		return 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	case 0x80:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		reg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		if (p->clock_ver_reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 			reg = upa_readb(p->clock_ver_reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		if (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 			if (reg & 0x80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 				return 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 			else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 				return 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		return 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) static int clock_board_probe(struct platform_device *op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	struct clock_board *p = kzalloc(sizeof(*p), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	int err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	if (!p) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		printk(KERN_ERR "clock_board: Cannot allocate struct clock_board\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	p->clock_freq_regs = of_ioremap(&op->resource[0], 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 					resource_size(&op->resource[0]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 					"clock_board_freq");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	if (!p->clock_freq_regs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		printk(KERN_ERR "clock_board: Cannot map clock_freq_regs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	p->clock_regs = of_ioremap(&op->resource[1], 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 				   resource_size(&op->resource[1]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 				   "clock_board_regs");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	if (!p->clock_regs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		printk(KERN_ERR "clock_board: Cannot map clock_regs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		goto out_unmap_clock_freq_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	if (op->resource[2].flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		p->clock_ver_reg = of_ioremap(&op->resource[2], 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 					      resource_size(&op->resource[2]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 					      "clock_ver_reg");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		if (!p->clock_ver_reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 			printk(KERN_ERR "clock_board: Cannot map clock_ver_reg\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 			goto out_unmap_clock_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	p->num_slots = clock_board_calc_nslots(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	p->leds_resource.start = (unsigned long)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		(p->clock_regs + CLOCK_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	p->leds_resource.end = p->leds_resource.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	p->leds_resource.name = "leds";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	p->leds_pdev.name = "sunfire-clockboard-leds";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	p->leds_pdev.id = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	p->leds_pdev.resource = &p->leds_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	p->leds_pdev.num_resources = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	p->leds_pdev.dev.parent = &op->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	err = platform_device_register(&p->leds_pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		printk(KERN_ERR "clock_board: Could not register LEDS "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		       "platform device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		goto out_unmap_clock_ver_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	printk(KERN_INFO "clock_board: Detected %d slot Enterprise system.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	       p->num_slots);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) out_unmap_clock_ver_reg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	if (p->clock_ver_reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		of_iounmap(&op->resource[2], p->clock_ver_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 			   resource_size(&op->resource[2]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) out_unmap_clock_regs:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	of_iounmap(&op->resource[1], p->clock_regs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		   resource_size(&op->resource[1]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) out_unmap_clock_freq_regs:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	of_iounmap(&op->resource[0], p->clock_freq_regs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		   resource_size(&op->resource[0]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static const struct of_device_id clock_board_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		.name = "clock-board",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static struct platform_driver clock_board_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	.probe		= clock_board_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		.name = "clock_board",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		.of_match_table = clock_board_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static int fhc_probe(struct platform_device *op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	struct fhc *p = kzalloc(sizeof(*p), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	int err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	u32 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	if (!p) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		printk(KERN_ERR "fhc: Cannot allocate struct fhc\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	if (of_node_name_eq(op->dev.of_node->parent, "central"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		p->central = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	p->pregs = of_ioremap(&op->resource[0], 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 			      resource_size(&op->resource[0]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 			      "fhc_pregs");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	if (!p->pregs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		printk(KERN_ERR "fhc: Cannot map pregs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	if (p->central) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		reg = upa_readl(p->pregs + FHC_PREGS_BSR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		p->board_num = ((reg >> 16) & 1) | ((reg >> 12) & 0x0e);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		p->board_num = of_getintprop_default(op->dev.of_node, "board#", -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 		if (p->board_num == -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 			printk(KERN_ERR "fhc: No board# property\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 			goto out_unmap_pregs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		if (upa_readl(p->pregs + FHC_PREGS_JCTRL) & FHC_JTAG_CTRL_MENAB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 			p->jtag_master = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	if (!p->central) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		p->leds_resource.start = (unsigned long)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 			(p->pregs + FHC_PREGS_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		p->leds_resource.end = p->leds_resource.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		p->leds_resource.name = "leds";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		p->leds_pdev.name = "sunfire-fhc-leds";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		p->leds_pdev.id = p->board_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		p->leds_pdev.resource = &p->leds_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		p->leds_pdev.num_resources = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		p->leds_pdev.dev.parent = &op->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		err = platform_device_register(&p->leds_pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			printk(KERN_ERR "fhc: Could not register LEDS "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			       "platform device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 			goto out_unmap_pregs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	reg = upa_readl(p->pregs + FHC_PREGS_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	if (!p->central)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		reg |= FHC_CONTROL_IXIST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	reg &= ~(FHC_CONTROL_AOFF |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		 FHC_CONTROL_BOFF |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		 FHC_CONTROL_SLINE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	upa_writel(reg, p->pregs + FHC_PREGS_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	upa_readl(p->pregs + FHC_PREGS_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	reg = upa_readl(p->pregs + FHC_PREGS_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	printk(KERN_INFO "fhc: Board #%d, Version[%x] PartID[%x] Manuf[%x] %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	       p->board_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	       (reg & FHC_ID_VERS) >> 28,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	       (reg & FHC_ID_PARTID) >> 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	       (reg & FHC_ID_MANUF) >> 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	       (p->jtag_master ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		"(JTAG Master)" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 		(p->central ? "(Central)" : "")));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) out_unmap_pregs:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	of_iounmap(&op->resource[0], p->pregs, resource_size(&op->resource[0]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) static const struct of_device_id fhc_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		.name = "fhc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static struct platform_driver fhc_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	.probe		= fhc_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		.name = "fhc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		.of_match_table = fhc_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) static int __init sunfire_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	(void) platform_driver_register(&fhc_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	(void) platform_driver_register(&clock_board_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) fs_initcall(sunfire_init);