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ram: k3-ddrss: Introduce ECC Functionality for full memory space

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Introduce ECC Functionality for full memory space as implemented in the
DDRSS. The following is done to accomplish this:

 * Introduce a memory region "ss" to allow dt to provide DDRSS region,
   which is not the same as "ctl" which is the controller region.

 * Introduce a "ti,ecc-enable" flag which allows a memorycontroller
   instance to enable ecc.

 * Introduce functionality to properly program the DDRSS registers to
   enable ECC for the full DDR memory space if enabled with above flag.

 * Expose a k3_ddrss_ddr_fdt_fixup call to allow fixup of fdt blob to
   account from DDR memory that must be reserved for ECC operation.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
This commit is contained in:
Dave Gerlach 2022-03-17 12:03:43 -05:00 • committed by Tom Rini
parent 71eb527476
commit f861ce90ca
2 changed files with 149 additions and 0 deletions
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16
include/k3-ddrss.h Normal file
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Texas Instruments' K3 DDRSS Driver
*
* Copyright (C) 2021-2022 Texas Instruments Incorporated - https://www.ti.com/
*
*/
#ifndef _K3_DDRSS_
#define _K3_DDRSS_
struct udevice;
int k3_ddrss_ddr_fdt_fixup(struct udevice *dev, void *blob, struct bd_info *bd);
#endif