diff options
| author | Nico Huber <nico.huber@secunet.com> | 2015-10-01 19:00:51 +0200 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2015-10-16 22:47:22 +0000 |
| commit | 7b2f9f6994341a890a11220a9d9fcbf7997bcae9 (patch) | |
| tree | 62c6fd59dc3bda48969cb6499cfeb3348d71aadb | |
| parent | f3214d02482a4104d7276f06d6b326b2a54c4262 (diff) | |
intel/southbridge/bd82x6x: Add option to set SPI VSCC registers
These are needed for the hardware-sequencing function of the PCH SPI
interface. Values are specific to the flash chip used on a board.
Change-Id: Id06766b4bac2686406bc09b8afa02f311f40dee7
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/11798
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
Reviewed-by: Duncan Laurie <dlaurie@google.com>
| -rw-r--r-- | src/southbridge/intel/bd82x6x/chip.h | 3 | ||||
| -rw-r--r-- | src/southbridge/intel/bd82x6x/lpc.c | 17 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/southbridge/intel/bd82x6x/chip.h b/src/southbridge/intel/bd82x6x/chip.h index 3fa9192a40..41adc9a7f0 100644 --- a/src/southbridge/intel/bd82x6x/chip.h +++ b/src/southbridge/intel/bd82x6x/chip.h @@ -96,6 +96,9 @@ struct southbridge_intel_bd82x6x_config { uint32_t superspeed_capable_ports; /* Overcurrent Mapping for USB 3.0 Ports */ uint32_t xhci_overcurrent_mapping; + + uint32_t spi_uvscc; + uint32_t spi_lvscc; }; #endif /* SOUTHBRIDGE_INTEL_BD82X6X_CHIP_H */ diff --git a/src/southbridge/intel/bd82x6x/lpc.c b/src/southbridge/intel/bd82x6x/lpc.c index 6bf43decef..a9e3ec56b5 100644 --- a/src/southbridge/intel/bd82x6x/lpc.c +++ b/src/southbridge/intel/bd82x6x/lpc.c @@ -480,6 +480,21 @@ static void pch_decode_init(struct device *dev) pci_write_config32(dev, LPC_GEN4_DEC, config->gen4_dec); } +static void pch_spi_init(const struct device *const dev) +{ + const config_t *const config = dev->chip_info; + + printk(BIOS_DEBUG, "pch_spi_init\n"); + + if (config->spi_uvscc) + RCBA32(0x3800 + 0xc8) = config->spi_uvscc; + if (config->spi_lvscc) + RCBA32(0x3800 + 0xc4) = config->spi_lvscc; + + if (config->spi_uvscc || config->spi_lvscc) + RCBA32_OR(0x3800 + 0xc4, 1 << 23); /* lock both UVSCC + LVSCC */ +} + static void lpc_init(struct device *dev) { printk(BIOS_DEBUG, "pch: lpc_init\n"); @@ -536,6 +551,8 @@ static void lpc_init(struct device *dev) pch_set_acpi_mode(); pch_fixups(dev); + + pch_spi_init(dev); } static void pch_lpc_read_resources(device_t dev) |