x86: pch9: Implement get_io_base op
IO_BASE is only seen on PCH9 device, implement the get_io_base op. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>utp
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79d4eb627c
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4f106bc8be
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@ -9,6 +9,7 @@
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#include <pch.h>
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#include <pch.h>
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#define GPIO_BASE 0x48
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#define GPIO_BASE 0x48
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#define IO_BASE 0x4c
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#define SBASE_ADDR 0x54
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#define SBASE_ADDR 0x54
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static int pch9_get_spi_base(struct udevice *dev, ulong *sbasep)
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static int pch9_get_spi_base(struct udevice *dev, ulong *sbasep)
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@ -52,9 +53,25 @@ static int pch9_get_gpio_base(struct udevice *dev, u32 *gbasep)
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return 0;
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return 0;
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}
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}
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static int pch9_get_io_base(struct udevice *dev, u32 *iobasep)
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{
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u32 base;
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dm_pci_read_config32(dev, IO_BASE, &base);
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if (base == 0x00000000 || base == 0xffffffff) {
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debug("%s: unexpected BASE value\n", __func__);
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return -ENODEV;
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}
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*iobasep = base & 1 ? base & ~3 : base & ~15;
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return 0;
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}
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static const struct pch_ops pch9_ops = {
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static const struct pch_ops pch9_ops = {
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.get_spi_base = pch9_get_spi_base,
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.get_spi_base = pch9_get_spi_base,
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.get_gpio_base = pch9_get_gpio_base,
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.get_gpio_base = pch9_get_gpio_base,
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.get_io_base = pch9_get_io_base,
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};
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};
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static const struct udevice_id pch9_ids[] = {
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static const struct udevice_id pch9_ids[] = {
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