mirrors/u-boot
0
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2024-12-01 00:23:29 +08:00
Code Issues Packages Projects Releases Wiki Activity

board: sl28: add SATA support

Browse Source 
Enable SATA support. Although not supported by the usual SATA pins on
the SMARC baseboard connector, SATA mode is supported on a PCIe lane.
This way one can use a mSATA card in a Mini PCI slot.

We need to invert the received data because in this mode the polarity of
the SerDes lane is swapped. Provide a fixup in board_early_init_f() for
the SPL. board_early_init_f() is then not common between SPL and u-boot
proper anymore, thus common.c is removed, as it just contained said
function.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Michael Walle 2021-01-08 00:08:59 +01:00 committed by Priyanka Jain
parent b463010be0
commit 805b2423b4
7 changed files with 47 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/dts/fsl-ls1028a-kontron-sl28.dts
View File

@ -172,6 +172,10 @@
};
};
&sata {
status = "okay";
};
&serial0 {
status = "okay";
};

2
board/kontron/sl28/Makefile
View File

@ -4,7 +4,7 @@ ifndef CONFIG_SPL_BUILD
obj-y += sl28.o cmds.o
endif
obj-y += common.o ddr.o
obj-y += ddr.o
ifdef CONFIG_SPL_BUILD
obj-y += spl.o

10
board/kontron/sl28/common.c
View File

@ -1,10 +0,0 @@
// SPDX-License-Identifier: GPL-2.0+
#include <common.h>
#include <asm/arch-fsl-layerscape/soc.h>
int board_early_init_f(void)
{
fsl_lsch3_early_init_f();
return 0;
}

6
board/kontron/sl28/sl28.c
View File

@ -19,6 +19,12 @@
DECLARE_GLOBAL_DATA_PTR;
int board_early_init_f(void)
{
fsl_lsch3_early_init_f();
return 0;
}
int board_init(void)
{
if (CONFIG_IS_ENABLED(FSL_CAAM))

34
board/kontron/sl28/spl.c
View File

@ -3,10 +3,36 @@
#include <common.h>
#include <asm/io.h>
#include <asm/spl.h>
#include <asm/arch-fsl-layerscape/fsl_serdes.h>
#include <asm/arch-fsl-layerscape/soc.h>
#define DCFG_RCWSR25 0x160
#define GPINFO_HW_VARIANT_MASK 0xff
#define SERDES_LNDGCR0 0x1ea08c0
#define LNDGCR0_PROTS_MASK GENMASK(11, 7)
#define LNDGCR0_PROTS_SATA (0x2 << 7)
#define SERDES_LNDGCR1 0x1ea08c4
#define LNDGCR1_RDAT_INV BIT(31)
/*
* On this board the SMARC PCIe lane D might be switched to SATA mode. This
* makes sense if this lane is connected to a Mini PCI slot and a mSATA card
* is plugged in. In this case, the RX pair is swapped and we need to invert
* the received data.
*/
static void fixup_sata_rx_polarity(void)
{
u32 prot = in_le32(SERDES_LNDGCR0) & LNDGCR0_PROTS_MASK;
u32 tmp;
if (prot == LNDGCR0_PROTS_SATA) {
tmp = in_le32(SERDES_LNDGCR1);
tmp |= LNDGCR1_RDAT_INV;
out_le32(SERDES_LNDGCR1, tmp);
}
}
int sl28_variant(void)
{
return in_le32(DCFG_BASE + DCFG_RCWSR25) & GPINFO_HW_VARIANT_MASK;
@ -34,3 +60,11 @@ void board_boot_order(u32 *spl_boot_list)
{
spl_boot_list[0] = BOOT_DEVICE_SPI;
}
int board_early_init_f(void)
{
fixup_sata_rx_polarity();
fsl_lsch3_early_init_f();
return 0;
}

1
configs/kontron_sl28_defconfig
View File

@ -62,6 +62,7 @@ CONFIG_DM=y
CONFIG_SPL_DM=y
CONFIG_SPL_DM_SEQ_ALIAS=y
CONFIG_SCSI_AHCI=y
CONFIG_SATA_CEVA=y
CONFIG_FSL_CAAM=y
CONFIG_SYS_FSL_DDR3=y
CONFIG_DM_I2C=y

1
include/configs/kontron_sl28.h
View File

@ -93,6 +93,7 @@
func(MMC, mmc, 1) \
func(NVME, nvme, 0) \
func(USB, usb, 0) \
func(SCSI, scsi, 0) \
func(DHCP, dhcp, 0) \
func(PXE, pxe, 0)
#include <config_distro_bootcmd.h>