mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
272
arch/sparc/kernel/central.c
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272
arch/sparc/kernel/central.c
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@ -0,0 +1,272 @@
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/* central.c: Central FHC driver for Sunfire/Starfire/Wildfire.
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*
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* Copyright (C) 1997, 1999, 2008 David S. Miller (davem@davemloft.net)
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/export.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <asm/fhc.h>
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#include <asm/upa.h>
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struct clock_board {
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void __iomem *clock_freq_regs;
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void __iomem *clock_regs;
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void __iomem *clock_ver_reg;
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int num_slots;
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struct resource leds_resource;
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struct platform_device leds_pdev;
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};
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struct fhc {
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void __iomem *pregs;
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bool central;
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bool jtag_master;
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int board_num;
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struct resource leds_resource;
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struct platform_device leds_pdev;
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};
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static int clock_board_calc_nslots(struct clock_board *p)
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{
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u8 reg = upa_readb(p->clock_regs + CLOCK_STAT1) & 0xc0;
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switch (reg) {
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case 0x40:
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return 16;
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case 0xc0:
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return 8;
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case 0x80:
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reg = 0;
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if (p->clock_ver_reg)
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reg = upa_readb(p->clock_ver_reg);
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if (reg) {
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if (reg & 0x80)
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return 4;
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else
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return 5;
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}
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/* Fallthrough */
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default:
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return 4;
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}
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}
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static int clock_board_probe(struct platform_device *op)
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{
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struct clock_board *p = kzalloc(sizeof(*p), GFP_KERNEL);
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int err = -ENOMEM;
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if (!p) {
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printk(KERN_ERR "clock_board: Cannot allocate struct clock_board\n");
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goto out;
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}
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p->clock_freq_regs = of_ioremap(&op->resource[0], 0,
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resource_size(&op->resource[0]),
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"clock_board_freq");
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if (!p->clock_freq_regs) {
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printk(KERN_ERR "clock_board: Cannot map clock_freq_regs\n");
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goto out_free;
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}
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p->clock_regs = of_ioremap(&op->resource[1], 0,
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resource_size(&op->resource[1]),
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"clock_board_regs");
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if (!p->clock_regs) {
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printk(KERN_ERR "clock_board: Cannot map clock_regs\n");
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goto out_unmap_clock_freq_regs;
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}
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if (op->resource[2].flags) {
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p->clock_ver_reg = of_ioremap(&op->resource[2], 0,
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resource_size(&op->resource[2]),
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"clock_ver_reg");
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if (!p->clock_ver_reg) {
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printk(KERN_ERR "clock_board: Cannot map clock_ver_reg\n");
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goto out_unmap_clock_regs;
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}
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}
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p->num_slots = clock_board_calc_nslots(p);
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p->leds_resource.start = (unsigned long)
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(p->clock_regs + CLOCK_CTRL);
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p->leds_resource.end = p->leds_resource.start;
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p->leds_resource.name = "leds";
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p->leds_pdev.name = "sunfire-clockboard-leds";
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p->leds_pdev.id = -1;
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p->leds_pdev.resource = &p->leds_resource;
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p->leds_pdev.num_resources = 1;
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p->leds_pdev.dev.parent = &op->dev;
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err = platform_device_register(&p->leds_pdev);
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if (err) {
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printk(KERN_ERR "clock_board: Could not register LEDS "
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"platform device\n");
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goto out_unmap_clock_ver_reg;
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}
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printk(KERN_INFO "clock_board: Detected %d slot Enterprise system.\n",
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p->num_slots);
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err = 0;
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out:
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return err;
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out_unmap_clock_ver_reg:
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if (p->clock_ver_reg)
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of_iounmap(&op->resource[2], p->clock_ver_reg,
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resource_size(&op->resource[2]));
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out_unmap_clock_regs:
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of_iounmap(&op->resource[1], p->clock_regs,
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resource_size(&op->resource[1]));
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out_unmap_clock_freq_regs:
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of_iounmap(&op->resource[0], p->clock_freq_regs,
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resource_size(&op->resource[0]));
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out_free:
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kfree(p);
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goto out;
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}
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static const struct of_device_id clock_board_match[] = {
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{
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.name = "clock-board",
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},
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{},
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};
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static struct platform_driver clock_board_driver = {
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.probe = clock_board_probe,
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.driver = {
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.name = "clock_board",
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.owner = THIS_MODULE,
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.of_match_table = clock_board_match,
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},
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};
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static int fhc_probe(struct platform_device *op)
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{
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struct fhc *p = kzalloc(sizeof(*p), GFP_KERNEL);
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int err = -ENOMEM;
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u32 reg;
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if (!p) {
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printk(KERN_ERR "fhc: Cannot allocate struct fhc\n");
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goto out;
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}
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if (!strcmp(op->dev.of_node->parent->name, "central"))
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p->central = true;
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p->pregs = of_ioremap(&op->resource[0], 0,
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resource_size(&op->resource[0]),
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"fhc_pregs");
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if (!p->pregs) {
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printk(KERN_ERR "fhc: Cannot map pregs\n");
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goto out_free;
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}
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if (p->central) {
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reg = upa_readl(p->pregs + FHC_PREGS_BSR);
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p->board_num = ((reg >> 16) & 1) | ((reg >> 12) & 0x0e);
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} else {
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p->board_num = of_getintprop_default(op->dev.of_node, "board#", -1);
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if (p->board_num == -1) {
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printk(KERN_ERR "fhc: No board# property\n");
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goto out_unmap_pregs;
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}
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if (upa_readl(p->pregs + FHC_PREGS_JCTRL) & FHC_JTAG_CTRL_MENAB)
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p->jtag_master = true;
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}
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if (!p->central) {
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p->leds_resource.start = (unsigned long)
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(p->pregs + FHC_PREGS_CTRL);
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p->leds_resource.end = p->leds_resource.start;
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p->leds_resource.name = "leds";
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p->leds_pdev.name = "sunfire-fhc-leds";
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p->leds_pdev.id = p->board_num;
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p->leds_pdev.resource = &p->leds_resource;
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p->leds_pdev.num_resources = 1;
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p->leds_pdev.dev.parent = &op->dev;
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err = platform_device_register(&p->leds_pdev);
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if (err) {
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printk(KERN_ERR "fhc: Could not register LEDS "
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"platform device\n");
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goto out_unmap_pregs;
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}
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}
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reg = upa_readl(p->pregs + FHC_PREGS_CTRL);
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if (!p->central)
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reg |= FHC_CONTROL_IXIST;
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reg &= ~(FHC_CONTROL_AOFF |
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FHC_CONTROL_BOFF |
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FHC_CONTROL_SLINE);
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upa_writel(reg, p->pregs + FHC_PREGS_CTRL);
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upa_readl(p->pregs + FHC_PREGS_CTRL);
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reg = upa_readl(p->pregs + FHC_PREGS_ID);
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printk(KERN_INFO "fhc: Board #%d, Version[%x] PartID[%x] Manuf[%x] %s\n",
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p->board_num,
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(reg & FHC_ID_VERS) >> 28,
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(reg & FHC_ID_PARTID) >> 12,
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(reg & FHC_ID_MANUF) >> 1,
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(p->jtag_master ?
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"(JTAG Master)" :
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(p->central ? "(Central)" : "")));
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err = 0;
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out:
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return err;
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out_unmap_pregs:
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of_iounmap(&op->resource[0], p->pregs, resource_size(&op->resource[0]));
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out_free:
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kfree(p);
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goto out;
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}
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static const struct of_device_id fhc_match[] = {
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{
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.name = "fhc",
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},
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{},
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};
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static struct platform_driver fhc_driver = {
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.probe = fhc_probe,
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.driver = {
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.name = "fhc",
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.owner = THIS_MODULE,
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.of_match_table = fhc_match,
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},
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};
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static int __init sunfire_init(void)
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{
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(void) platform_driver_register(&fhc_driver);
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(void) platform_driver_register(&clock_board_driver);
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return 0;
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}
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fs_initcall(sunfire_init);
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