soc.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <console/console.h>
#include <device/device.h>
#include <symbols.h>
#include <soc/ipq_uart.h>
 
typedef struct {
        uint8_t hlos1[112 * MiB],       /* <-- 0x80000000 */
                appsbl[4 * MiB],        /* <-- 0x87000000 */
                sbl[1 * MiB],           /* <-- 0x87400000 */
                rsvd[11 * MiB],         /* <-- 0x87500000 */
                hlos2[128 * MiB];       /* <-- 0x88000000 */
} ipq_mem_map_t;
 
#define LINUX_REGION1_START     ((uintptr_t)(ipq_mem_map->hlos1))
#define LINUX_REGION1_START_KB  (LINUX_REGION1_START / KiB)
#define LINUX_REGION1_SIZE      (sizeof(ipq_mem_map->hlos1) +   \
                                 sizeof(ipq_mem_map->appsbl) +  \
                                 sizeof(ipq_mem_map->sbl))
#define LINUX_REGION1_SIZE_KB   (LINUX_REGION1_SIZE / KiB)
 
#define RESERVED_START          ((uintptr_t)(ipq_mem_map->rsvd))
#define RESERVED_START_KB       (RESERVED_START / KiB)
#define RESERVED_SIZE           (sizeof(ipq_mem_map->rsvd))
#define RESERVED_SIZE_KB        (RESERVED_SIZE / KiB)
 
/* xxx_SIZE defines not needed since it goes till end of memory */
#define LINUX_REGION2_START     ((uintptr_t)(ipq_mem_map->hlos2))
#define LINUX_REGION2_START_KB  (LINUX_REGION2_START / KiB)
 
static void soc_read_resources(struct device *dev)
{
        ipq_mem_map_t *ipq_mem_map = ((ipq_mem_map_t *)_dram);
 
        ram_resource(dev, 0, LINUX_REGION1_START_KB, LINUX_REGION1_SIZE_KB);
 
        reserved_ram_resource(dev, 1, RESERVED_START_KB, RESERVED_SIZE_KB);
 
        /* 0x88000000 to end, is the second region for Linux */
        ram_resource(dev, 2, LINUX_REGION2_START_KB,
                     (CONFIG_DRAM_SIZE_MB * KiB) -
                        LINUX_REGION1_SIZE_KB - RESERVED_SIZE_KB);
}
 
static void soc_init(struct device *dev)
{
        /*
         * Do this in case console is not enabled: kernel's earlyprintk()
         * should work no matter what the firmware console configuration is.
         */
        ipq40xx_uart_init();
 
        printk(BIOS_INFO, "CPU: QCA 40xx\n");
}
 
static struct device_operations soc_ops = {
        .read_resources = soc_read_resources,
        .init           = soc_init,
};
 
static void enable_soc_dev(struct device *dev)
{
        dev->ops = &soc_ops;
}
 
struct chip_operations soc_qualcomm_ipq40xx_ops = {
        CHIP_NAME("SOC QCA 40xx")
        .enable_dev = enable_soc_dev,
};