mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-08 14:14:32 +00:00
805b2423b4
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>
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
|
|
#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;
|
|
}
|
|
|
|
int board_fit_config_name_match(const char *name)
|
|
{
|
|
int variant = sl28_variant();
|
|
|
|
switch (variant) {
|
|
case 1:
|
|
return strcmp(name, "fsl-ls1028a-kontron-sl28-var1");
|
|
case 2:
|
|
return strcmp(name, "fsl-ls1028a-kontron-sl28-var2");
|
|
case 3:
|
|
return strcmp(name, "fsl-ls1028a-kontron-sl28-var3");
|
|
case 4:
|
|
return strcmp(name, "fsl-ls1028a-kontron-sl28-var4");
|
|
default:
|
|
return strcmp(name, "fsl-ls1028a-kontron-sl28");
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|