From efc0f99cebcab21dbabcc634b9dbb963bbbbcab8 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Sun, 27 Jul 2014 09:23:36 +0100 Subject: [PATCH 07/57] MIPS: ralink: add support for MT7620n This is the small version of MT7620a. Signed-off-by: John Crispin --- arch/mips/include/asm/mach-ralink/mt7620.h | 7 ++----- arch/mips/ralink/mt7620.c | 19 ++++++++++++------- 2 files changed, 14 insertions(+), 12 deletions(-) diff --git a/arch/mips/include/asm/mach-ralink/mt7620.h b/arch/mips/include/asm/mach-ralink/mt7620.h index 7ff9290..27b2fa9 100644 --- a/arch/mips/include/asm/mach-ralink/mt7620.h +++ b/arch/mips/include/asm/mach-ralink/mt7620.h @@ -25,11 +25,8 @@ #define SYSC_REG_CPLL_CONFIG0 0x54 #define SYSC_REG_CPLL_CONFIG1 0x58 -#define MT7620N_CHIP_NAME0 0x33365452 -#define MT7620N_CHIP_NAME1 0x20203235 - -#define MT7620A_CHIP_NAME0 0x3637544d -#define MT7620A_CHIP_NAME1 0x20203032 +#define MT7620_CHIP_NAME0 0x3637544d +#define MT7620_CHIP_NAME1 0x20203032 #define SYSCFG0_XTAL_FREQ_SEL BIT(6) diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c index 5846817..4fdee17 100644 --- a/arch/mips/ralink/mt7620.c +++ b/arch/mips/ralink/mt7620.c @@ -357,22 +357,27 @@ void prom_soc_init(struct ralink_soc_info *soc_info) u32 cfg0; u32 pmu0; u32 pmu1; + u32 bga; n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0); n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1); + rev = __raw_readl(sysc + SYSC_REG_CHIP_REV); + bga = (rev >> CHIP_REV_PKG_SHIFT) & CHIP_REV_PKG_MASK; - if (n0 == MT7620N_CHIP_NAME0 && n1 == MT7620N_CHIP_NAME1) { - name = "MT7620N"; - soc_info->compatible = "ralink,mt7620n-soc"; - } else if (n0 == MT7620A_CHIP_NAME0 && n1 == MT7620A_CHIP_NAME1) { + if (n0 != MT7620_CHIP_NAME0 || n1 != MT7620_CHIP_NAME1) + panic("mt7620: unknown SoC, n0:%08x n1:%08x\n", n0, n1); + + if (bga) { name = "MT7620A"; soc_info->compatible = "ralink,mt7620a-soc"; } else { - panic("mt7620: unknown SoC, n0:%08x n1:%08x", n0, n1); + name = "MT7620N"; + soc_info->compatible = "ralink,mt7620n-soc"; +#ifdef CONFIG_PCI + panic("mt7620n is only supported for non pci kernels"); +#endif } - rev = __raw_readl(sysc + SYSC_REG_CHIP_REV); - snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN, "Ralink %s ver:%u eco:%u", name, -- 1.7.10.4