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mips: ralink: rt3883: soc queries and tests as functions

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Move the SoC register value queries and tests to specific functions,
 to remove repetition of logic. No functional changes intended

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Sergio Paracuellos 2023-02-27 11:57:59 +01:00 committed by Thomas Bogendoerfer
parent 7edb177584
commit 89f9b3041e
1 changed files with 49 additions and 17 deletions
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66
arch/mips/ralink/rt3883.c
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@ -70,29 +70,61 @@ void __init ralink_of_remap(void)
panic("Failed to remap core resources");
}
static unsigned int __init rt3883_get_soc_name0(void)
{
return __raw_readl(RT3883_SYSC_BASE + RT3883_SYSC_REG_CHIPID0_3);
}
static unsigned int __init rt3883_get_soc_name1(void)
{
return __raw_readl(RT3883_SYSC_BASE + RT3883_SYSC_REG_CHIPID4_7);
}
static bool __init rt3883_soc_valid(void)
{
if (rt3883_get_soc_name0() == RT3883_CHIP_NAME0 &&
rt3883_get_soc_name1() == RT3883_CHIP_NAME1)
return true;
else
return false;
}
static const char __init *rt3883_get_soc_name(void)
{
if (rt3883_soc_valid())
return "RT3883";
else
return "invalid";
}
static unsigned int __init rt3883_get_soc_id(void)
{
return __raw_readl(RT3883_SYSC_BASE + RT3883_SYSC_REG_REVID);
}
static unsigned int __init rt3883_get_soc_ver(void)
{
return (rt3883_get_soc_id() >> RT3883_REVID_VER_ID_SHIFT) & RT3883_REVID_VER_ID_MASK;
}
static unsigned int __init rt3883_get_soc_rev(void)
{
return (rt3883_get_soc_id() & RT3883_REVID_ECO_ID_MASK);
}
void __init prom_soc_init(struct ralink_soc_info *soc_info)
{
const char *name;
u32 n0;
u32 n1;
u32 id;
n0 = __raw_readl(RT3883_SYSC_BASE + RT3883_SYSC_REG_CHIPID0_3);
n1 = __raw_readl(RT3883_SYSC_BASE + RT3883_SYSC_REG_CHIPID4_7);
id = __raw_readl(RT3883_SYSC_BASE + RT3883_SYSC_REG_REVID);
if (n0 == RT3883_CHIP_NAME0 && n1 == RT3883_CHIP_NAME1) {
if (rt3883_soc_valid())
soc_info->compatible = "ralink,rt3883-soc";
name = "RT3883";
} else {
panic("rt3883: unknown SoC, n0:%08x n1:%08x", n0, n1);
}
else
panic("rt3883: unknown SoC, n0:%08x n1:%08x",
rt3883_get_soc_name0(), rt3883_get_soc_name1());
snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN,
"Ralink %s ver:%u eco:%u",
name,
(id >> RT3883_REVID_VER_ID_SHIFT) & RT3883_REVID_VER_ID_MASK,
(id & RT3883_REVID_ECO_ID_MASK));
rt3883_get_soc_name(),
rt3883_get_soc_ver(),
rt3883_get_soc_rev());
soc_info->mem_base = RT3883_SDRAM_BASE;
soc_info->mem_size_min = RT3883_MEM_SIZE_MIN;