src/soc/qualcomm/ipq40xx/soc.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <console/console.h>
  16 #include <device/device.h>
  17 #include <symbols.h>
  18 #include <soc/ipq_uart.h>
  19
  20 typedef struct {
  21         uint8_t hlos1[112 * MiB],       /* <-- 0x80000000 */
  22                 appsbl[4 * MiB],        /* <-- 0x87000000 */
  23                 sbl[1 * MiB],           /* <-- 0x87400000 */
  24                 rsvd[11 * MiB],         /* <-- 0x87500000 */
  25                 hlos2[128 * MiB];       /* <-- 0x88000000 */
  26 } ipq_mem_map_t;
  27
  28 #define LINUX_REGION1_START     ((uintptr_t)(ipq_mem_map->hlos1))
  29 #define LINUX_REGION1_START_KB  (LINUX_REGION1_START / KiB)
  30 #define LINUX_REGION1_SIZE      (sizeof(ipq_mem_map->hlos1) +   \
  31                                  sizeof(ipq_mem_map->appsbl) +  \
  32                                  sizeof(ipq_mem_map->sbl))
  33 #define LINUX_REGION1_SIZE_KB   (LINUX_REGION1_SIZE / KiB)
  34
  35 #define RESERVED_START          ((uintptr_t)(ipq_mem_map->rsvd))
  36 #define RESERVED_START_KB       (RESERVED_START / KiB)
  37 #define RESERVED_SIZE           (sizeof(ipq_mem_map->rsvd))
  38 #define RESERVED_SIZE_KB        (RESERVED_SIZE / KiB)
  39
  40 /* xxx_SIZE defines not needed since it goes till end of memory */
  41 #define LINUX_REGION2_START     ((uintptr_t)(ipq_mem_map->hlos2))
  42 #define LINUX_REGION2_START_KB  (LINUX_REGION2_START / KiB)
  43
  44 static void soc_read_resources(struct device *dev)
  45 {
  46         ipq_mem_map_t *ipq_mem_map = ((ipq_mem_map_t *)_dram);
  47
  48         ram_resource(dev, 0, LINUX_REGION1_START_KB, LINUX_REGION1_SIZE_KB);
  49
  50         reserved_ram_resource(dev, 1, RESERVED_START_KB, RESERVED_SIZE_KB);
  51
  52         /* 0x88000000 to end, is the second region for Linux */
  53         ram_resource(dev, 2, LINUX_REGION2_START_KB,
  54                      (CONFIG_DRAM_SIZE_MB * KiB) -
  55                         LINUX_REGION1_SIZE_KB - RESERVED_SIZE_KB);
  56 }
  57
  58 static void soc_init(struct device *dev)
  59 {
  60         /*
  61          * Do this in case console is not enabled: kernel's earlyprintk()
  62          * should work no matter what the firmware console configuration is.
  63          */
  64         ipq40xx_uart_init();
  65
  66         printk(BIOS_INFO, "CPU: QCA 40xx\n");
  67 }
  68
  69 static struct device_operations soc_ops = {
  70         .read_resources = soc_read_resources,
  71         .init           = soc_init,
  72 };
  73
  74 static void enable_soc_dev(struct device *dev)
  75 {
  76         dev->ops = &soc_ops;
  77 }
  78
  79 struct chip_operations soc_qualcomm_ipq40xx_ops = {
  80         CHIP_NAME("SOC QCA 40xx")
  81         .enable_dev = enable_soc_dev,
  82 };