diff options
| author | Michał Żygowski <michal.zygowski@3mdeb.com> | 2019-11-28 14:14:52 +0100 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-12-04 16:41:49 +0000 |
| commit | 08cd65198e44a5c26ba8f1f5439fbf7475fb0ed0 (patch) | |
| tree | 9c07978b28062b7d650698f71360fe54262157c4 /src/southbridge | |
| parent | 8cee45c3f8f05d936ba181f56405b8c936666a36 (diff) | |
sb/amd/cimx/sb800: add C bootblock southbridge initialization
TEST=boot PC Engines apu1 with C bootblock patch and launch
Debian with Linux kernel 4.14.50
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: Ie81198f5034a84d319ee7143aa032433f82be254
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37329
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/bootblock.c | 23 |
2 files changed, 23 insertions, 4 deletions
diff --git a/src/southbridge/amd/cimx/sb800/Makefile.inc b/src/southbridge/amd/cimx/sb800/Makefile.inc index 418110b5e0..ccb3a2a744 100644 --- a/src/southbridge/amd/cimx/sb800/Makefile.inc +++ b/src/southbridge/amd/cimx/sb800/Makefile.inc @@ -16,6 +16,10 @@ # SB800 Platform Files +ifneq ($(CONFIG_ROMCC_BOOTBLOCK),y) +bootblock-y += bootblock.c +endif + romstage-y += cfg.c romstage-y += early.c romstage-y += smbus.c smbus_spd.c diff --git a/src/southbridge/amd/cimx/sb800/bootblock.c b/src/southbridge/amd/cimx/sb800/bootblock.c index 28b37c30f4..b4f03dad7e 100644 --- a/src/southbridge/amd/cimx/sb800/bootblock.c +++ b/src/southbridge/amd/cimx/sb800/bootblock.c @@ -79,18 +79,21 @@ static void enable_spi_fast_mode(void) pci_io_write_config32(dev, 0xa0, save); } -static void enable_clocks(void) +static void enable_acpimmio_decode_pm24(void) { u8 reg8; - u32 reg32; - volatile u32 *acpi_mmio = (void *) (0xFED80000 + 0xE00 + 0x40); - // Program AcpiMmioEn to enable MMIO access to MiscCntrl register outb(0x24, 0xCD6); reg8 = inb(0xCD7); reg8 |= 1; reg8 &= ~(1 << 1); outb(reg8, 0xCD7); +} + +static void enable_clocks(void) +{ + u32 reg32; + volatile u32 *acpi_mmio = (void *) (0xFED80000 + 0xE00 + 0x40); // Program SB800 MiscClkCntrl register to configure clock output on the // 14M_25M_48M_OSC ball usually used for the Super-I/O. @@ -112,5 +115,17 @@ static void bootblock_southbridge_init(void) enable_rom(); enable_prefetch(); enable_spi_fast_mode(); + + // Program AcpiMmioEn to enable MMIO access to MiscCntrl register + enable_acpimmio_decode_pm24(); enable_clocks(); } + +#if !CONFIG(ROMCC_BOOTBLOCK) +#include <bootblock_common.h> + +void bootblock_soc_early_init(void) +{ + bootblock_southbridge_init(); +} +#endif |