Commit 1dc5c2cf authored by John Crispin's avatar John Crispin Committed by Ralf Baechle
Browse files

MIPS: ralink: add support for MT7620n 



This is the small version of MT7620a.

Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/8030/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent a097b13c

arch/mips/include/asm/mach-ralink/mt7620.h

+2 −5
Original line number Diff line number Diff line
@@ -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)

arch/mips/ralink/mt7620.c

+13 −7
Original line number Diff line number Diff line
@@ -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,