src/mainboard/amd/birman/mainboard.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <amdblocks/acpi.h>
   4 #include <amdblocks/amd_pci_util.h>
   5 #include <commonlib/helpers.h>
   6 #include <device/device.h>
   7 #include <types.h>
   8 #include "gpio.h"
   9 #include "update_devicetree.h"
  10
  11 /* TODO: Update for birman */
  12
  13 /* The IRQ mapping in fch_irq_map ends up getting written to the indirect address space that is
  14    accessed via I/O ports 0xc00/0xc01. */
  15
  16 /*
  17  * This controls the device -> IRQ routing.
  18  *
  19  * Hardcoded IRQs:
  20  *  0: timer < soc/amd/common/acpi/lpc.asl
  21  *  1: i8042 - Keyboard
  22  *  2: cascade
  23  *  8: rtc0 <- soc/amd/common/acpi/lpc.asl
  24  *  9: acpi <- soc/amd/common/acpi/lpc.asl
  25  */
  26 static const struct fch_irq_routing fch_irq_map[] = {
  27         { PIRQ_A,       12,             PIRQ_NC },
  28         { PIRQ_B,       14,             PIRQ_NC },
  29         { PIRQ_C,       15,             PIRQ_NC },
  30         { PIRQ_D,       12,             PIRQ_NC },
  31         { PIRQ_E,       14,             PIRQ_NC },
  32         { PIRQ_F,       15,             PIRQ_NC },
  33         { PIRQ_G,       12,             PIRQ_NC },
  34         { PIRQ_H,       14,             PIRQ_NC },
  35
  36         { PIRQ_SCI,     ACPI_SCI_IRQ,   ACPI_SCI_IRQ },
  37         { PIRQ_SDIO,    PIRQ_NC,        PIRQ_NC },
  38         { PIRQ_GPIO,    11,             11 },
  39         { PIRQ_I2C0,    10,             10 },
  40         { PIRQ_I2C1,     7,              7 },
  41         { PIRQ_I2C2,     6,              6 },
  42         { PIRQ_I2C3,     5,              5 },
  43         { PIRQ_UART0,    4,              4 },
  44         { PIRQ_UART1,    3,              3 },
  45
  46         /* The MISC registers are not interrupt numbers */
  47         { PIRQ_MISC,    0xfa,           0x00 },
  48         { PIRQ_MISC0,   0x91,           0x00 },
  49         { PIRQ_HPET_L,  0x00,           0x00 },
  50         { PIRQ_HPET_H,  0x00,           0x00 },
  51 };
  52
  53 const struct fch_irq_routing *mb_get_fch_irq_mapping(size_t *length)
  54 {
  55         *length = ARRAY_SIZE(fch_irq_map);
  56         return fch_irq_map;
  57 }
  58
  59 static void mainboard_init(void *chip_info)
  60 {
  61         mainboard_program_gpios();
  62
  63         if (CONFIG(BOARD_AMD_BIRMAN_PHOENIX_OPENSIL))
  64                 mainboard_update_devicetree_opensil();
  65 }
  66
  67 struct chip_operations mainboard_ops = {
  68         .init = mainboard_init,
  69 };