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https://github.com/brain-hackers/u-boot-brain
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bce4d18c9d
All sata based drivers are bind and corresponding block device is created. Based on this find_scsi_device() is able to get back block device based on scsi_curr_dev pointer. intr_scsi() is commented now but it can be replaced by calling find_scsi_device() and scsi_scan(). scsi_dev_desc[] is commented out but common/scsi.c heavily depends on it. That's why CONFIG_SYS_SCSI_MAX_DEVICE is hardcoded to 1 and symbol is reassigned to a block description allocated by uclass. There is only one block description by device now but it doesn't need to be correct when more devices are present. scsi_bind() ensures corresponding block device creation. uclass post_probe (scsi_post_probe()) is doing low level init. SCSI/SATA DM based drivers requires to have 64bit base address as the first entry in platform data structure to setup mmio_base. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Series-changes: 2 - Use CONFIG_DM_SCSI instead of mix of DM_SCSI and DM_SATA Ceva sata has never used sata commands that's why keep it in SCSI part only. - Separate scsi_scan() for DM_SCSI and do not change cmd/scsi.c - Extend platdata Series-changes: 3 - Fix scsi_scan return path - Fix header location uclass-internal.h - Add scsi_max_devs under !DM_SCSI - Add new header device-internal because of device_probe() - Redesign block device creation algorithm - Use device_unbind in error path - Create block device with id and lun numbers (lun was there in v2) - Cleanup dev_num initialization in block device description with fixing parameters in blk_create_devicef - Create new Kconfig menu for SATA/SCSI drivers - Extend description for DM_SCSI - Fix Kconfig dependencies - Fix kernel doc format in scsi_platdata - Fix ahci_init_one - vendor variable Series-changes: 4 - Fix Kconfig entry - Remove SPL ifdef around SCSI uclass - Clean ahci_print_info() ifdef logic
22 lines
504 B
C
22 lines
504 B
C
#ifndef __SATA_H__
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#define __SATA_H__
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#include <part.h>
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#if !defined(CONFIG_DM_SCSI)
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int init_sata(int dev);
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int reset_sata(int dev);
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int scan_sata(int dev);
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ulong sata_read(int dev, ulong blknr, lbaint_t blkcnt, void *buffer);
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ulong sata_write(int dev, ulong blknr, lbaint_t blkcnt, const void *buffer);
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int sata_initialize(void);
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int __sata_initialize(void);
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int sata_stop(void);
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int __sata_stop(void);
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int sata_port_status(int dev, int port);
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extern struct blk_desc sata_dev_desc[];
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#endif
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#endif
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