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// SPDX-License-Identifier: GPL-2.0+
#include <config.h>
#include <asm/io.h>
#include <asm/spl.h>
#include <asm/arch-fsl-layerscape/fsl_serdes.h>
#include <asm/arch-fsl-layerscape/soc.h>
#include <spi_flash.h>
#include "sl28.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, "freescale/fsl-ls1028a-kontron-sl28-var1");
case 2:
return strcmp(name, "freescale/fsl-ls1028a-kontron-sl28-var2");
case 4:
return strcmp(name, "freescale/fsl-ls1028a-kontron-sl28-var4");
case 3:
default:
return strcmp(name, "freescale/fsl-ls1028a-kontron-sl28");
}
}
void board_boot_order(u32 *spl_boot_list)
{
enum boot_source src = sl28_boot_source();
switch (src) {
case BOOT_SOURCE_SDHC:
spl_boot_list[0] = BOOT_DEVICE_MMC2;
break;
case BOOT_SOURCE_SPI:
case BOOT_SOURCE_I2C:
spl_boot_list[0] = BOOT_DEVICE_SPI;
break;
case BOOT_SOURCE_MMC:
spl_boot_list[0] = BOOT_DEVICE_MMC1;
break;
default:
panic("unexpected bootsource (%d)\n", src);
break;
}
}
unsigned int spl_spi_get_uboot_offs(struct spi_flash *flash)
{
enum boot_source src = sl28_boot_source();
switch (src) {
case BOOT_SOURCE_SPI:
return 0x000000;
case BOOT_SOURCE_I2C:
return 0x230000;
default:
panic("unexpected bootsource (%d)\n", src);
break;
}
}
const char *spl_board_loader_name(u32 boot_device)
{
enum boot_source src = sl28_boot_source();
switch (src) {
case BOOT_SOURCE_SDHC:
return "SD card (Test mode)";
case BOOT_SOURCE_SPI:
return "Failsafe SPI flash";
case BOOT_SOURCE_I2C:
return "SPI flash";
case BOOT_SOURCE_MMC:
return "eMMC";
default:
return "(unknown)";
}
}
int board_early_init_f(void)
{
fixup_sata_rx_polarity();
fsl_lsch3_early_init_f();
return 0;
}
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