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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/ide/rapide.c | |
parent | Initial commit. (diff) | |
download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | drivers/ide/rapide.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/ide/rapide.c b/drivers/ide/rapide.c new file mode 100644 index 000000000..d73c3d100 --- /dev/null +++ b/drivers/ide/rapide.c @@ -0,0 +1,105 @@ +/* + * Copyright (c) 1996-2002 Russell King. + */ + +#include <linux/module.h> +#include <linux/blkdev.h> +#include <linux/errno.h> +#include <linux/ide.h> +#include <linux/init.h> + +#include <asm/ecard.h> + +static const struct ide_port_info rapide_port_info = { + .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA, + .chipset = ide_generic, +}; + +static void rapide_setup_ports(struct ide_hw *hw, void __iomem *base, + void __iomem *ctrl, unsigned int sz, int irq) +{ + unsigned long port = (unsigned long)base; + int i; + + for (i = 0; i <= 7; i++) { + hw->io_ports_array[i] = port; + port += sz; + } + hw->io_ports.ctl_addr = (unsigned long)ctrl; + hw->irq = irq; +} + +static int rapide_probe(struct expansion_card *ec, const struct ecard_id *id) +{ + void __iomem *base; + struct ide_host *host; + int ret; + struct ide_hw hw, *hws[] = { &hw }; + + ret = ecard_request_resources(ec); + if (ret) + goto out; + + base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0); + if (!base) { + ret = -ENOMEM; + goto release; + } + + memset(&hw, 0, sizeof(hw)); + rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq); + hw.dev = &ec->dev; + + ret = ide_host_add(&rapide_port_info, hws, 1, &host); + if (ret) + goto release; + + ecard_set_drvdata(ec, host); + goto out; + + release: + ecard_release_resources(ec); + out: + return ret; +} + +static void rapide_remove(struct expansion_card *ec) +{ + struct ide_host *host = ecard_get_drvdata(ec); + + ecard_set_drvdata(ec, NULL); + + ide_host_remove(host); + + ecard_release_resources(ec); +} + +static struct ecard_id rapide_ids[] = { + { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 }, + { 0xffff, 0xffff } +}; + +static struct ecard_driver rapide_driver = { + .probe = rapide_probe, + .remove = rapide_remove, + .id_table = rapide_ids, + .drv = { + .name = "rapide", + }, +}; + +static int __init rapide_init(void) +{ + return ecard_register_driver(&rapide_driver); +} + +static void __exit rapide_exit(void) +{ + ecard_remove_driver(&rapide_driver); +} + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Yellowstone RAPIDE driver"); + +module_init(rapide_init); +module_exit(rapide_exit); |