From: John Thomson git@johnthomson.fastmail.com.au
[ Upstream commit b4767d4c072583dec987225b6fe3f5524a735f42 ]
Move the SoC register value queries and tests to specific functions, to remove repetition of logic No functional changes intended
Signed-off-by: John Thomson git@johnthomson.fastmail.com.au Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Stable-dep-of: 7c18b64bba3b ("mips: ralink: mt7621: do not use kzalloc too early") Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/ralink/mt7621.c | 86 +++++++++++++++++++++++++++------------ 1 file changed, 61 insertions(+), 25 deletions(-)
diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c index 17dbf28897e0..6e126f570f0c 100644 --- a/arch/mips/ralink/mt7621.c +++ b/arch/mips/ralink/mt7621.c @@ -97,7 +97,57 @@ void __init ralink_of_remap(void) panic("Failed to remap core resources"); }
-static void soc_dev_init(struct ralink_soc_info *soc_info, u32 rev) +static unsigned int __init mt7621_get_soc_name0(void) +{ + return __raw_readl(MT7621_SYSC_BASE + SYSC_REG_CHIP_NAME0); +} + +static unsigned int __init mt7621_get_soc_name1(void) +{ + return __raw_readl(MT7621_SYSC_BASE + SYSC_REG_CHIP_NAME1); +} + +static bool __init mt7621_soc_valid(void) +{ + if (mt7621_get_soc_name0() == MT7621_CHIP_NAME0 && + mt7621_get_soc_name1() == MT7621_CHIP_NAME1) + return true; + else + return false; +} + +static const char __init *mt7621_get_soc_id(void) +{ + if (mt7621_soc_valid()) + return "MT7621"; + else + return "invalid"; +} + +static unsigned int __init mt7621_get_soc_rev(void) +{ + return __raw_readl(MT7621_SYSC_BASE + SYSC_REG_CHIP_REV); +} + +static unsigned int __init mt7621_get_soc_ver(void) +{ + return (mt7621_get_soc_rev() >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK; +} + +static unsigned int __init mt7621_get_soc_eco(void) +{ + return (mt7621_get_soc_rev() & CHIP_REV_ECO_MASK); +} + +static const char __init *mt7621_get_soc_revision(void) +{ + if (mt7621_get_soc_rev() == 1 && mt7621_get_soc_eco() == 1) + return "E2"; + else + return "E1"; +} + +static void soc_dev_init(struct ralink_soc_info *soc_info) { struct soc_device *soc_dev; struct soc_device_attribute *soc_dev_attr; @@ -108,12 +158,7 @@ static void soc_dev_init(struct ralink_soc_info *soc_info, u32 rev)
soc_dev_attr->soc_id = "mt7621"; soc_dev_attr->family = "Ralink"; - - if (((rev >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK) == 1 && - (rev & CHIP_REV_ECO_MASK) == 1) - soc_dev_attr->revision = "E2"; - else - soc_dev_attr->revision = "E1"; + soc_dev_attr->revision = mt7621_get_soc_revision();
soc_dev_attr->data = soc_info;
@@ -126,11 +171,6 @@ static void soc_dev_init(struct ralink_soc_info *soc_info, u32 rev)
void __init prom_soc_init(struct ralink_soc_info *soc_info) { - unsigned char *name = NULL; - u32 n0; - u32 n1; - u32 rev; - /* Early detection of CMP support */ mips_cm_probe(); mips_cpc_probe(); @@ -153,27 +193,23 @@ void __init prom_soc_init(struct ralink_soc_info *soc_info) __sync(); }
- n0 = __raw_readl(MT7621_SYSC_BASE + SYSC_REG_CHIP_NAME0); - n1 = __raw_readl(MT7621_SYSC_BASE + SYSC_REG_CHIP_NAME1); - - if (n0 == MT7621_CHIP_NAME0 && n1 == MT7621_CHIP_NAME1) { - name = "MT7621"; + if (mt7621_soc_valid()) soc_info->compatible = "mediatek,mt7621-soc"; - } else { - panic("mt7621: unknown SoC, n0:%08x n1:%08x\n", n0, n1); - } + else + panic("mt7621: unknown SoC, n0:%08x n1:%08x\n", + mt7621_get_soc_name0(), + mt7621_get_soc_name1()); ralink_soc = MT762X_SOC_MT7621AT; - rev = __raw_readl(MT7621_SYSC_BASE + SYSC_REG_CHIP_REV);
snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN, "MediaTek %s ver:%u eco:%u", - name, - (rev >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK, - (rev & CHIP_REV_ECO_MASK)); + mt7621_get_soc_id(), + mt7621_get_soc_ver(), + mt7621_get_soc_eco());
soc_info->mem_detect = mt7621_memory_detect;
- soc_dev_init(soc_info, rev); + soc_dev_init(soc_info);
if (!register_cps_smp_ops()) return;