Linux 3DS PDN dump

#define PDN_BASE_ADDR   0x10140000
#define PDN_SIZE    0x2000

static const struct {
    const char name[32];
    u32 offset;
    u32 size;
} pdn_regs_desc[] =  {
    {"PDN_SHAREDWRAM_32K_DATA<0-7>",    0x0000, 1*8},
    {"PDN_SHAREDWRAM_32K_CODE<0-7>",    0x0008, 1*8},
    {" ?",                 0x0100, 2},
    {" ?",                 0x0102, 2},
    {"ARM11 interrupt related.",        0x0104, 1},
    {" ?",                 0x0105, 1},
    {" ?",                 0x0108, 2},
    {" ?",                 0x010C, 2},
    {" ?",                 0x0140, 2},
    {"PDN_WIFI_CNT",            0x0180, 1},
    {"PDN_SPI_CNT",             0x01C0, 4},
    {" ?",                 0x0200, 4},
    {"Clock related?",          0x0400, 1},
    {"Clock related?",          0x0410, 4},
    {"PDN_BOOTROM_OVERLAY_CNT",     0x0420, 4},
    {"PDN_BOOTROM_OVERLAY_VAL",     0x0424, 4},
    {" ?",                 0x0428, 4},
    {"PDN_MPCORE_CFG",          0x0FFC, 1},
    {"PDN_GPU_STATUS?",         0x1000, 4},
    {"PDN_PTM_0",               0x1008, 4},
    {"PDN_PTM_1",               0x100C, 4},
    {"PDN_TWLMODE_0",           0x1100, 2},
    {"PDN_TWLMODE_1",           0x1104, 2},
    {"PDN_TWLMODE_2",           0x1108, 2},
    {" ?",                  0x110A, 2},
    {"PDN_WIFI?",               0x110C, 1},
    {" ?",                 0x1110, 2},
    {" ?",                 0x1112, 2},
    {"PDN_CODEC_0",             0x1114, 2},
    {"PDN_CODEC_1",             0x1116, 2},
    {" ?",                 0x1118, 1},
    {" ?",                 0x1119, 1},
    {" ?",                 0x1120, 1},
    {"PDN_GPU_CNT",             0x1200, 4},
    {"PDN_GPU_CNT2",            0x1204, 4},
    {"PDN_GPU_CNT3",            0x1210, 2},
    {"PDN_CODEC_CNT",           0x1220, 1},
    {"PDN_CAMERA_CNT",          0x1224, 1},
    {"PDN_DSP_CNT",             0x1230, 1},
    {"PDN_MPCORE_CLKCNT",           0x1300, 2},
    {"PDN_MPCORE_CNT",          0x1304, 2},
    {"PDN_MPCORE_BOOTCNT<0-3>",     0x1310, 1*4},
};

#define PDN_REGS_DESC_SIZE (sizeof(pdn_regs_desc) / sizeof(*pdn_regs_desc))

static void dump_pdn(void)
{
    void __iomem *pdn_base;
    u32 i;

    pdn_base = ioremap(PDN_BASE_ADDR, PDN_SIZE);

    for (i = 0; i < PDN_REGS_DESC_SIZE; i++) {
        if (pdn_regs_desc[i].size == 1) {
            printk("0x%08X (%s): 0x%02X\n",
                PDN_BASE_ADDR + pdn_regs_desc[i].offset,
                pdn_regs_desc[i].name,
                ioread8(pdn_base + pdn_regs_desc[i].offset));
        } else if (pdn_regs_desc[i].size == 2) {
            printk("0x%08X (%s): 0x%04X\n",
                PDN_BASE_ADDR + pdn_regs_desc[i].offset,
                pdn_regs_desc[i].name,
                ioread16(pdn_base + pdn_regs_desc[i].offset));
        } else if (pdn_regs_desc[i].size == 4) {
            printk("0x%08X (%s): 0x%08X\n",
                PDN_BASE_ADDR + pdn_regs_desc[i].offset,
                pdn_regs_desc[i].name,
                ioread32(pdn_base + pdn_regs_desc[i].offset));
        } else if (pdn_regs_desc[i].size == 8) {
            printk("0x%08X (%s): 0x%08X\n",
                PDN_BASE_ADDR + pdn_regs_desc[i].offset + 0,
                pdn_regs_desc[i].name,
                ioread32(pdn_base + pdn_regs_desc[i].offset + 0));
            printk("0x%08X (%s): 0x%08X\n",
                PDN_BASE_ADDR + pdn_regs_desc[i].offset + 4,
                pdn_regs_desc[i].name,
                ioread32(pdn_base + pdn_regs_desc[i].offset + 4));
        }
    }

    iounmap(pdn_base);
}