The board is able to boot from the following source: - user-updateble SPI flash - write-protected part of the same SPI flash - eMMC - SD card
Implement the needed function hooks to support all of these boot sources.
Signed-off-by: Michael Walle michael@walle.cc --- board/kontron/sl28/common.c | 22 ++++++++++++++++++++ board/kontron/sl28/sl28.c | 23 ++++++++++++++++++++ board/kontron/sl28/sl28.h | 16 ++++++++++++++ board/kontron/sl28/spl.c | 38 +++++++++++++++++++++++++++++++++- configs/kontron_sl28_defconfig | 5 ++++- 5 files changed, 102 insertions(+), 2 deletions(-) create mode 100644 board/kontron/sl28/sl28.h
diff --git a/board/kontron/sl28/common.c b/board/kontron/sl28/common.c index 33c6843c3f..331de29bae 100644 --- a/board/kontron/sl28/common.c +++ b/board/kontron/sl28/common.c @@ -2,6 +2,9 @@
#include <common.h> #include <asm/global_data.h> +#include <asm/io.h> + +#include "sl28.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -9,3 +12,22 @@ u32 get_lpuart_clk(void) { return gd->bus_clk / CONFIG_SYS_FSL_LPUART_CLK_DIV; } + +enum boot_source sl28_boot_source(void) +{ + u32 rcw_src = in_le32(DCFG_BASE + DCFG_PORSR1) & DCFG_PORSR1_RCW_SRC; + + switch (rcw_src) { + case DCFG_PORSR1_RCW_SRC_SDHC1: + return BOOT_SOURCE_SDHC; + case DCFG_PORSR1_RCW_SRC_SDHC2: + return BOOT_SOURCE_MMC; + case DCFG_PORSR1_RCW_SRC_I2C: + return BOOT_SOURCE_I2C; + case DCFG_PORSR1_RCW_SRC_FSPI_NOR: + return BOOT_SOURCE_SPI; + default: + debug("unknown bootsource (%08x)\n", rcw_src); + return BOOT_SOURCE_UNKNOWN; + } +} diff --git a/board/kontron/sl28/sl28.c b/board/kontron/sl28/sl28.c index 32e9694b77..54719cc01c 100644 --- a/board/kontron/sl28/sl28.c +++ b/board/kontron/sl28/sl28.c @@ -24,6 +24,8 @@ #include <fdtdec.h> #include <miiphy.h>
+#include "sl28.h" + DECLARE_GLOBAL_DATA_PTR;
#if CONFIG_IS_ENABLED(EFI_HAVE_CAPSULE_SUPPORT) @@ -60,6 +62,27 @@ int board_eth_init(struct bd_info *bis) return pci_eth_init(bis); }
+enum env_location env_get_location(enum env_operation op, int prio) +{ + enum boot_source src = sl28_boot_source(); + + if (prio) + return ENVL_UNKNOWN; + + if (!CONFIG_IS_ENABLED(ENV_IS_IN_SPI_FLASH)) + return ENVL_NOWHERE; + + /* write and erase always operate on the environment */ + if (op == ENVOP_SAVE || op == ENVOP_ERASE) + return ENVL_SPI_FLASH; + + /* failsafe boot will always use the compiled-in default environment */ + if (src == BOOT_SOURCE_SPI) + return ENVL_NOWHERE; + + return ENVL_SPI_FLASH; +} + static int __sl28cpld_read(uint reg) { struct udevice *dev; diff --git a/board/kontron/sl28/sl28.h b/board/kontron/sl28/sl28.h new file mode 100644 index 0000000000..7f0105049c --- /dev/null +++ b/board/kontron/sl28/sl28.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef __SL28_H +#define __SL28_H + +enum boot_source { + BOOT_SOURCE_UNKNOWN, + BOOT_SOURCE_SDHC, + BOOT_SOURCE_MMC, + BOOT_SOURCE_I2C, + BOOT_SOURCE_SPI, +}; + +enum boot_source sl28_boot_source(void); + +#endif diff --git a/board/kontron/sl28/spl.c b/board/kontron/sl28/spl.c index 0e6ad5f37e..b1fefc22b2 100644 --- a/board/kontron/sl28/spl.c +++ b/board/kontron/sl28/spl.c @@ -5,6 +5,9 @@ #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 @@ -58,7 +61,40 @@ int board_fit_config_name_match(const char *name)
void board_boot_order(u32 *spl_boot_list) { - spl_boot_list[0] = BOOT_DEVICE_SPI; + 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; + } +} + }
int board_early_init_f(void) diff --git a/configs/kontron_sl28_defconfig b/configs/kontron_sl28_defconfig index dc8c28f8cc..7e5c1fc064 100644 --- a/configs/kontron_sl28_defconfig +++ b/configs/kontron_sl28_defconfig @@ -12,6 +12,7 @@ CONFIG_ENV_SECT_SIZE=0x10000 CONFIG_DEFAULT_DEVICE_TREE="fsl-ls1028a-kontron-sl28" CONFIG_SPL_TEXT_BASE=0x18010000 CONFIG_SYS_FSL_SDHC_CLK_DIV=1 +CONFIG_SPL_MMC=y CONFIG_SPL_SERIAL=y CONFIG_SPL_SIZE_LIMIT=0x20000 CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK=0x0 @@ -36,9 +37,11 @@ CONFIG_USE_BOOTARGS=y CONFIG_BOARD_LATE_INIT=y CONFIG_PCI_INIT_R=y CONFIG_SPL_BOARD_INIT=y +CONFIG_SPL_SEPARATE_BSS=y +CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y +CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x900 CONFIG_SPL_MPC8XXX_INIT_DDR=y CONFIG_SPL_SPI_LOAD=y -CONFIG_SYS_SPI_U_BOOT_OFFS=0x230000 CONFIG_CMD_ASKENV=y CONFIG_CMD_GREPENV=y CONFIG_CMD_NVEDIT_EFI=y