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Diffstat (limited to 'src/southbridge/amd/cimx/sb800/bootblock.c')
-rw-r--r--src/southbridge/amd/cimx/sb800/bootblock.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/src/southbridge/amd/cimx/sb800/bootblock.c b/src/southbridge/amd/cimx/sb800/bootblock.c
deleted file mode 100644
index 636e5a8eec..0000000000
--- a/src/southbridge/amd/cimx/sb800/bootblock.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <amdblocks/acpimmio.h>
-#include <arch/bootblock.h>
-#include <device/pci_ops.h>
-
-static void enable_rom(void)
-{
- u16 word;
- u32 dword;
- const pci_devfn_t dev = PCI_DEV(0, 0x14, 0x03);
- /* SB800 LPC Bridge 0:20:3:44h.
- * BIT6: Port Enable for serial port 0x3f8-0x3ff
- * BIT29: Port Enable for KBC port 0x60 and 0x64
- * BIT30: Port Enable for ACPI Micro-Controller port 0x66 and 0x62
- */
- dword = pci_s_read_config32(dev, 0x44);
- //dword |= (1<<6) | (1<<29) | (1<<30);
- /* Turn on all of LPC IO Port decode enable */
- dword = 0xffffffff;
- pci_s_write_config32(dev, 0x44, dword);
-
- /* SB800 LPC Bridge 0:20:3:48h.
- * BIT0: Port Enable for SuperIO 0x2E-0x2F
- * BIT1: Port Enable for SuperIO 0x4E-0x4F
- * BIT4: Port Enable for LPC ROM Address Arrage2 (0x68-0x6C)
- * BIT6: Port Enable for RTC IO 0x70-0x73
- * BIT21: Port Enable for Port 0x80
- */
- dword = pci_s_read_config32(dev, 0x48);
- dword |= (1 << 0) | (1 << 1) | (1 << 4) | (1 << 6) | (1 << 21);
- pci_s_write_config32(dev, 0x48, dword);
-
- /* Enable ROM access */
- word = pci_s_read_config16(dev, 0x6c);
- word = 0x10000 - (CONFIG_COREBOOT_ROMSIZE_KB >> 6);
- pci_s_write_config16(dev, 0x6c, word);
-}
-
-static void enable_prefetch(void)
-{
- u32 dword;
- const pci_devfn_t dev = PCI_DEV(0, 0x14, 0x03);
-
- /* Enable PrefetchEnSPIFromHost */
- dword = pci_s_read_config32(dev, 0xb8);
- pci_s_write_config32(dev, 0xb8, dword | (1 << 24));
-}
-
-static void enable_spi_fast_mode(void)
-{
- u32 dword;
- const pci_devfn_t dev = PCI_DEV(0, 0x14, 0x03);
-
- // set temp MMIO base
- volatile u32 *spi_base = (void *)0xa0000000;
- u32 save = pci_s_read_config32(dev, 0xa0);
- pci_s_write_config32(dev, 0xa0, (u32)spi_base | 2);
-
- // early enable of SPI 33 MHz fast mode read
- dword = spi_base[3];
- spi_base[3] = (dword & ~(3 << 14)) | (1 << 14);
- spi_base[0] = spi_base[0] | (1 << 18); // fast read enable
-
- pci_s_write_config32(dev, 0xa0, save);
-}
-
-static void enable_clocks(void)
-{
- u32 reg32;
-
- // Program SB800 MiscClkCntrl register to configure clock output on the
- // 14M_25M_48M_OSC ball usually used for the Super-I/O.
- // Almost all SIOs need 48 MHz, only the SMSC SCH311x wants 14 MHz,
- // which is the SB800's power up default. We could switch back to 14
- // in the mainboard's romstage.c, but then the clock frequency would
- // change twice.
- reg32 = misc_read32(0x40);
- reg32 &= ~((1 << 2) | (3 << 0)); // enable, 14 MHz (power up default)
-#if !CONFIG(SUPERIO_WANTS_14MHZ_CLOCK)
- reg32 |= 2 << 0; // Device_CLK1_sel = 48 MHz
-#endif
- misc_write32(0x40, reg32);
-}
-
-void bootblock_early_southbridge_init(void)
-{
- /* Setup the ROM access for 2M */
- enable_rom();
- enable_prefetch();
- enable_spi_fast_mode();
-
- // Program AcpiMmioEn to enable MMIO access to MiscCntrl register
- enable_acpimmio_decode_pm24();
- enable_clocks();
-}