1 files changed, 0 insertions, 274 deletions
diff --git a/qemu/roms/u-boot/drivers/gpio/intel_ich6_gpio.c b/qemu/roms/u-boot/drivers/gpio/intel_ich6_gpio.c
deleted file mode 100644
index 7d9fac723..000000000
--- a/qemu/roms/u-boot/drivers/gpio/intel_ich6_gpio.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * Copyright (c) 2012 The Chromium OS Authors.
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * This is a GPIO driver for Intel ICH6 and later. The x86 GPIOs are accessed
- * through the PCI bus. Each PCI device has 256 bytes of configuration space,
- * consisting of a standard header and a device-specific set of registers. PCI
- * bus 0, device 31, function 0 gives us access to the chipset GPIOs (among
- * other things). Within the PCI configuration space, the GPIOBASE register
- * tells us where in the device's I/O region we can find more registers to
- * actually access the GPIOs.
- *
- * PCI bus/device/function 0:1f:0  => PCI config registers
- *   PCI config register "GPIOBASE"
- *     PCI I/O space + [GPIOBASE]  => start of GPIO registers
- *       GPIO registers => gpio pin function, direction, value
- *
- *
- * Danger Will Robinson! Bank 0 (GPIOs 0-31) seems to be fairly stable. Most
- * ICH versions have more, but the decoding the matrix that describes them is
- * absurdly complex and constantly changing. We'll provide Bank 1 and Bank 2,
- * but they will ONLY work for certain unspecified chipsets because the offset
- * from GPIOBASE changes randomly. Even then, many GPIOs are unimplemented or
- * reserved or subject to arcane restrictions.
- */
-
-#include <common.h>
-#include <pci.h>
-#include <asm/gpio.h>
-#include <asm/io.h>
-
-/* Where in config space is the register that points to the GPIO registers? */
-#define PCI_CFG_GPIOBASE 0x48
-
-#define NUM_BANKS 3
-
-/* Within the I/O space, where are the registers to control the GPIOs? */
-static struct {
-	u8 use_sel;
-	u8 io_sel;
-	u8 lvl;
-} gpio_bank[NUM_BANKS] = {
-	{ 0x00, 0x04, 0x0c },		/* Bank 0 */
-	{ 0x30, 0x34, 0x38 },		/* Bank 1 */
-	{ 0x40, 0x44, 0x48 }		/* Bank 2 */
-};
-
-static pci_dev_t dev;			/* handle for 0:1f:0 */
-static u32 gpiobase;			/* offset into I/O space */
-static int found_it_once;		/* valid GPIO device? */
-static u32 lock[NUM_BANKS];		/* "lock" for access to pins */
-
-static int bad_arg(int num, int *bank, int *bitnum)
-{
-	int i = num / 32;
-	int j = num % 32;
-
-	if (num < 0 || i > NUM_BANKS) {
-		debug("%s: bogus gpio num: %d\n", __func__, num);
-		return -1;
-	}
-	*bank = i;
-	*bitnum = j;
-	return 0;
-}
-
-static int mark_gpio(int bank, int bitnum)
-{
-	if (lock[bank] & (1UL << bitnum)) {
-		debug("%s: %d.%d already marked\n", __func__, bank, bitnum);
-		return -1;
-	}
-	lock[bank] |= (1 << bitnum);
-	return 0;
-}
-
-static void clear_gpio(int bank, int bitnum)
-{
-	lock[bank] &= ~(1 << bitnum);
-}
-
-static int notmine(int num, int *bank, int *bitnum)
-{
-	if (bad_arg(num, bank, bitnum))
-		return -1;
-	return !(lock[*bank] & (1UL << *bitnum));
-}
-
-static int gpio_init(void)
-{
-	u8 tmpbyte;
-	u16 tmpword;
-	u32 tmplong;
-
-	/* Have we already done this? */
-	if (found_it_once)
-		return 0;
-
-	/* Where should it be? */
-	dev = PCI_BDF(0, 0x1f, 0);
-
-	/* Is the device present? */
-	pci_read_config_word(dev, PCI_VENDOR_ID, &tmpword);
-	if (tmpword != PCI_VENDOR_ID_INTEL) {
-		debug("%s: wrong VendorID\n", __func__);
-		return -1;
-	}
-
-	pci_read_config_word(dev, PCI_DEVICE_ID, &tmpword);
-	debug("Found %04x:%04x\n", PCI_VENDOR_ID_INTEL, tmpword);
-	/*
-	 * We'd like to validate the Device ID too, but pretty much any
-	 * value is either a) correct with slight differences, or b)
-	 * correct but undocumented. We'll have to check a bunch of other
-	 * things instead...
-	 */
-
-	/* I/O should already be enabled (it's a RO bit). */
-	pci_read_config_word(dev, PCI_COMMAND, &tmpword);
-	if (!(tmpword & PCI_COMMAND_IO)) {
-		debug("%s: device IO not enabled\n", __func__);
-		return -1;
-	}
-
-	/* Header Type must be normal (bits 6-0 only; see spec.) */
-	pci_read_config_byte(dev, PCI_HEADER_TYPE, &tmpbyte);
-	if ((tmpbyte & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
-		debug("%s: invalid Header type\n", __func__);
-		return -1;
-	}
-
-	/* Base Class must be a bridge device */
-	pci_read_config_byte(dev, PCI_CLASS_CODE, &tmpbyte);
-	if (tmpbyte != PCI_CLASS_CODE_BRIDGE) {
-		debug("%s: invalid class\n", __func__);
-		return -1;
-	}
-	/* Sub Class must be ISA */
-	pci_read_config_byte(dev, PCI_CLASS_SUB_CODE, &tmpbyte);
-	if (tmpbyte != PCI_CLASS_SUB_CODE_BRIDGE_ISA) {
-		debug("%s: invalid subclass\n", __func__);
-		return -1;
-	}
-
-	/* Programming Interface must be 0x00 (no others exist) */
-	pci_read_config_byte(dev, PCI_CLASS_PROG, &tmpbyte);
-	if (tmpbyte != 0x00) {
-		debug("%s: invalid interface type\n", __func__);
-		return -1;
-	}
-
-	/*
-	 * GPIOBASE moved to its current offset with ICH6, but prior to
-	 * that it was unused (or undocumented). Check that it looks
-	 * okay: not all ones or zeros, and mapped to I/O space (bit 0).
-	 */
-	pci_read_config_dword(dev, PCI_CFG_GPIOBASE, &tmplong);
-	if (tmplong == 0x00000000 || tmplong == 0xffffffff ||
-	    !(tmplong & 0x00000001)) {
-		debug("%s: unexpected GPIOBASE value\n", __func__);
-		return -1;
-	}
-
-	/*
-	 * Okay, I guess we're looking at the right device. The actual
-	 * GPIO registers are in the PCI device's I/O space, starting
-	 * at the offset that we just read. Bit 0 indicates that it's
-	 * an I/O address, not a memory address, so mask that off.
-	 */
-	gpiobase = tmplong & 0xfffffffe;
-
-	/* Finally. These are the droids we're looking for. */
-	found_it_once = 1;
-	return 0;
-}
-
-int gpio_request(unsigned num, const char *label /* UNUSED */)
-{
-	u32 tmplong;
-	int i = 0, j = 0;
-
-	/* Is the hardware ready? */
-	if (gpio_init())
-		return -1;
-
-	if (bad_arg(num, &i, &j))
-		return -1;
-
-	/*
-	 * Make sure that the GPIO pin we want isn't already in use for some
-	 * built-in hardware function. We have to check this for every
-	 * requested pin.
-	 */
-	tmplong = inl(gpiobase + gpio_bank[i].use_sel);
-	if (!(tmplong & (1UL << j))) {
-		debug("%s: gpio %d is reserved for internal use\n", __func__,
-		      num);
-		return -1;
-	}
-
-	return mark_gpio(i, j);
-}
-
-int gpio_free(unsigned num)
-{
-	int i = 0, j = 0;
-
-	if (notmine(num, &i, &j))
-		return -1;
-
-	clear_gpio(i, j);
-	return 0;
-}
-
-int gpio_direction_input(unsigned num)
-{
-	u32 tmplong;
-	int i = 0, j = 0;
-
-	if (notmine(num, &i, &j))
-		return -1;
-
-	tmplong = inl(gpiobase + gpio_bank[i].io_sel);
-	tmplong |= (1UL << j);
-	outl(gpiobase + gpio_bank[i].io_sel, tmplong);
-	return 0;
-}
-
-int gpio_direction_output(unsigned num, int value)
-{
-	u32 tmplong;
-	int i = 0, j = 0;
-
-	if (notmine(num, &i, &j))
-		return -1;
-
-	tmplong = inl(gpiobase + gpio_bank[i].io_sel);
-	tmplong &= ~(1UL << j);
-	outl(gpiobase + gpio_bank[i].io_sel, tmplong);
-	return 0;
-}
-
-int gpio_get_value(unsigned num)
-{
-	u32 tmplong;
-	int i = 0, j = 0;
-	int r;
-
-	if (notmine(num, &i, &j))
-		return -1;
-
-	tmplong = inl(gpiobase + gpio_bank[i].lvl);
-	r = (tmplong & (1UL << j)) ? 1 : 0;
-	return r;
-}
-
-int gpio_set_value(unsigned num, int value)
-{
-	u32 tmplong;
-	int i = 0, j = 0;
-
-	if (notmine(num, &i, &j))
-		return -1;
-
-	tmplong = inl(gpiobase + gpio_bank[i].lvl);
-	if (value)
-		tmplong |= (1UL << j);
-	else
-		tmplong &= ~(1UL << j);
-	outl(gpiobase + gpio_bank[i].lvl, tmplong);
-	return 0;
-}