mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
|
/*
|
||
|
|
* GTBUS initialisation for sun9i
|
||
|
|
*
|
||
|
|
* (C) Copyright 2016 Theobroma Systems Design und Consulting GmbH
|
||
|
|
* Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/arch/gtbus_sun9i.h>
|
||
|
|
#include <asm/arch/sys_proto.h>
|
||
|
|
|
||
|
|
#ifdef CONFIG_SPL_BUILD
|
||
|
|
|
||
|
|
void gtbus_init(void)
|
||
|
|
{
|
||
|
|
struct sunxi_gtbus_reg * const gtbus =
|
||
|
|
(struct sunxi_gtbus_reg *)SUNXI_GTBUS_BASE;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We use the same setting that Allwinner used in Boot0 for now.
|
||
|
|
* It may be advantageous to adjust these for various workloads
|
||
|
|
* (e.g. headless use cases that focus on IO throughput).
|
||
|
|
*/
|
||
|
|
writel((GT_PRIO_HIGH << GT_PORT_FE0) |
|
||
|
|
(GT_PRIO_HIGH << GT_PORT_BE1) |
|
||
|
|
(GT_PRIO_HIGH << GT_PORT_BE2) |
|
||
|
|
(GT_PRIO_HIGH << GT_PORT_IEP0) |
|
||
|
|
(GT_PRIO_HIGH << GT_PORT_FE1) |
|
||
|
|
(GT_PRIO_HIGH << GT_PORT_BE0) |
|
||
|
|
(GT_PRIO_HIGH << GT_PORT_FE2) |
|
||
|
|
(GT_PRIO_HIGH << GT_PORT_IEP1),
|
||
|
|
>bus->mst_read_prio_cfg[0]);
|
||
|
|
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_FE0]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_FE0]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_BE1]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_BE2]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_IEP0]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_FE1]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_BE0]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_FE2]);
|
||
|
|
writel(GP_MST_CFG_DEFAULT, >bus->mst_cfg[GT_PORT_IEP1]);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|