src/soc/qualcomm/ipq40xx/soc.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <device/device.h>
   5 #include <symbols.h>
   6 #include <soc/ipq_uart.h>
   7
   8 /* CONFIG_DRAM_SIZE_MB effectively extends hlos2. */
   9 typedef struct {
  10         uint8_t hlos1[112 * MiB],       /* <-- 0x80000000 */
  11                 appsbl[4 * MiB],        /* <-- 0x87000000 */
  12                 sbl[1 * MiB],           /* <-- 0x87400000 */
  13                 rsvd[11 * MiB],         /* <-- 0x87500000 */
  14                 hlos2[128 * MiB];       /* <-- 0x88000000 */
  15 } ipq_mem_map_t;
  16
  17 static void soc_read_resources(struct device *dev)
  18 {
  19         ipq_mem_map_t *ipq_mem_map = ((ipq_mem_map_t *)_dram);
  20         uint64_t ram_end = (uintptr_t)_dram + CONFIG_DRAM_SIZE_MB * (uint64_t)MiB;
  21
  22         ram_from_to(dev, 0, (uintptr_t)ipq_mem_map->hlos1, (uintptr_t)ipq_mem_map->rsvd);
  23         reserved_ram_from_to(dev, 1, (uintptr_t)ipq_mem_map->rsvd,
  24                              (uintptr_t)ipq_mem_map->hlos2);
  25
  26         /* 0x88000000 to end, is the second region for Linux */
  27         ram_from_to(dev, 2, (uintptr_t)ipq_mem_map->hlos2, ram_end);
  28 }
  29
  30 static void soc_init(struct device *dev)
  31 {
  32         /*
  33          * Do this in case console is not enabled: kernel's earlyprintk()
  34          * should work no matter what the firmware console configuration is.
  35          */
  36         ipq40xx_uart_init();
  37
  38         printk(BIOS_INFO, "CPU: QCA 40xx\n");
  39 }
  40
  41 static struct device_operations soc_ops = {
  42         .read_resources = soc_read_resources,
  43         .init           = soc_init,
  44 };
  45
  46 static void enable_soc_dev(struct device *dev)
  47 {
  48         dev->ops = &soc_ops;
  49 }
  50
  51 struct chip_operations soc_qualcomm_ipq40xx_ops = {
  52         .name = "SOC QCA 40xx",
  53         .enable_dev = enable_soc_dev,
  54 };