diff options
| author | Fabien Parent <fparent@baylibre.com> | 2017-01-09 10:06:36 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-01-14 21:47:16 (GMT) |
| commit | c0fa385c9b0d924c66e55467e867f37adc2c6630 (patch) | |
| tree | b6bdce26a521ae528367101be74b516b67c35c95 /arch/arm/mach-davinci | |
| parent | 208db781cad4c24f538658a9cb17e24fa43ca3c9 (diff) | |
| download | u-boot-fsl-qoriq-c0fa385c9b0d924c66e55467e867f37adc2c6630.tar.xz | |
davinci: spl: use bootcfg to select boot device
Right now the SPL is trying to load u-boot based on defines, i.e. one
has to define CONFIG_SPL_NAND_SIMPLE to boot from NAND,
or CONFIG_SPL_SPI_LOAD to boot from SPI FLASH, etc...
This prevent us from having a single SPL image that is able to boot from
all media, and one need to build an image for each medium. This
commit is replacing the #ifdef that select the boot medium by reading
the value of the boot pins (via the BOOTCFG register).
Now a single SPL image will be able to read from the boot pin to know
which device should be used to load u-boot.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm/mach-davinci')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/hardware.h | 16 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/spl.c | 31 |
2 files changed, 36 insertions, 11 deletions
diff --git a/arch/arm/mach-davinci/include/mach/hardware.h b/arch/arm/mach-davinci/include/mach/hardware.h index 2a0360a..c31f38c 100644 --- a/arch/arm/mach-davinci/include/mach/hardware.h +++ b/arch/arm/mach-davinci/include/mach/hardware.h @@ -475,12 +475,15 @@ int clk_get(enum davinci_clk_ids id); /* Boot config */ struct davinci_syscfg_regs { dv_reg revid; - dv_reg rsvd[13]; + dv_reg rsvd[7]; + dv_reg bootcfg; + dv_reg chiprevidr; + dv_reg rsvd2[4]; dv_reg kick0; dv_reg kick1; dv_reg rsvd1[52]; dv_reg mstpri[3]; - dv_reg rsvd2; + dv_reg rsvd3; dv_reg pinmux[20]; dv_reg suspsrc; dv_reg chipsig; @@ -495,6 +498,15 @@ struct davinci_syscfg_regs { #define davinci_syscfg_regs \ ((struct davinci_syscfg_regs *)DAVINCI_BOOTCFG_BASE) +enum { + DAVINCI_NAND8_BOOT = 0b001110, + DAVINCI_NAND16_BOOT = 0b010000, + DAVINCI_SD_OR_MMC_BOOT = 0b011100, + DAVINCI_MMC_ONLY_BOOT = 0b111100, + DAVINCI_SPI0_FLASH_BOOT = 0b001010, + DAVINCI_SPI1_FLASH_BOOT = 0b001100, +}; + #define pinmux(x) (&davinci_syscfg_regs->pinmux[x]) /* Emulation suspend bits */ diff --git a/arch/arm/mach-davinci/spl.c b/arch/arm/mach-davinci/spl.c index 0aeaa7d..564c200 100644 --- a/arch/arm/mach-davinci/spl.c +++ b/arch/arm/mach-davinci/spl.c @@ -52,14 +52,27 @@ u32 spl_boot_mode(const u32 boot_device) u32 spl_boot_device(void) { -#ifdef CONFIG_SPL_NAND_SIMPLE - return BOOT_DEVICE_NAND; -#elif defined(CONFIG_SPL_SPI_LOAD) - return BOOT_DEVICE_SPI; -#elif defined(CONFIG_SPL_MMC_LOAD) - return BOOT_DEVICE_MMC1; -#else - puts("Unknown boot device\n"); - hang(); + switch (davinci_syscfg_regs->bootcfg) { +#ifdef CONFIG_SPL_NAND_SUPPORT + case DAVINCI_NAND8_BOOT: + case DAVINCI_NAND16_BOOT: + return BOOT_DEVICE_NAND; #endif + +#ifdef CONFIG_SPL_MMC_SUPPORT + case DAVINCI_SD_OR_MMC_BOOT: + case DAVINCI_MMC_ONLY_BOOT: + return BOOT_DEVICE_MMC1; +#endif + +#ifdef CONFIG_SPL_SPI_FLASH_SUPPORT + case DAVINCI_SPI0_FLASH_BOOT: + case DAVINCI_SPI1_FLASH_BOOT: + return BOOT_DEVICE_SPI; +#endif + + default: + puts("Unknown boot device\n"); + hang(); + } } |