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MIPS: ralink: add support for MT7620n 

This is the small version of MT7620a.

Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/8030/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
John Crispin 2014-07-27 09:23:36 +01:00 committed by Ralf Baechle
parent a097b13c52
commit 1dc5c2cfc1
2 changed files with 15 additions and 12 deletions
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7
arch/mips/include/asm/mach-ralink/mt7620.h
View File

@ -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)

20
arch/mips/ralink/mt7620.c
View File

@ -277,6 +277,7 @@ void __init ralink_clk_init(void)
ralink_clk_add("10000500.uart", periph_rate);
ralink_clk_add("10000b00.spi", sys_rate);
ralink_clk_add("10000c00.uartlite", periph_rate);
ralink_clk_add("10180000.wmac", xtal_rate);
}
void __init ralink_of_remap(void)
@ -298,22 +299,27 @@ 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,