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MIPS: ralink: Add support for mt7688 

MT7688 is similar tot he MT7628 but has a different wifi radio.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11439/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
John Crispin 2015-11-04 11:50:06 +01:00 committed by Ralf Baechle
parent 1b04be20f6
commit 81857db913
2 changed files with 30 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/mips/include/asm/mach-ralink/mt7620.h
View File

@ -24,6 +24,7 @@ enum mt762x_soc_type {
#define SYSC_REG_CHIP_NAME0 0x00
#define SYSC_REG_CHIP_NAME1 0x04
#define SYSC_REG_EFUSE_CFG 0x08
#define SYSC_REG_CHIP_REV 0x0c
#define SYSC_REG_SYSTEM_CONFIG0 0x10
#define SYSC_REG_SYSTEM_CONFIG1 0x14

35
arch/mips/ralink/mt7620.c
View File

@ -40,6 +40,12 @@
/* is this a MT7620 or a MT7628 */
enum mt762x_soc_type mt762x_soc;
/* EFUSE bits */
#define EFUSE_MT7688 0x100000
/* DRAM type bit */
#define DRAM_TYPE_MT7628_MASK 0x1
/* does the board have sdram or ddram */
static int dram_type;
@ -227,6 +233,12 @@ static struct rt2880_pmx_group mt7628an_pinmux_data[] = {
{ 0 }
};
static inline int is_mt76x8(void)
{
return mt762x_soc == MT762X_SOC_MT7628AN ||
mt762x_soc == MT762X_SOC_MT7688;
}
static __init u32
mt7620_calc_rate(u32 ref_rate, u32 mul, u32 div)
{
@ -381,7 +393,7 @@ void __init ralink_clk_init(void)
#define RINT(x) ((x) / 1000000)
#define RFRAC(x) (((x) / 1000) % 1000)
if (mt762x_soc == MT762X_SOC_MT7628AN) {
if (is_mt76x8()) {
if (xtal_rate == MHZ(40))
cpu_rate = MHZ(580);
else
@ -511,8 +523,15 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
#endif
}
} else if (n0 == MT7620_CHIP_NAME0 && n1 == MT7628_CHIP_NAME1) {
mt762x_soc = MT762X_SOC_MT7628AN;
name = "MT7628AN";
u32 efuse = __raw_readl(sysc + SYSC_REG_EFUSE_CFG);
if (efuse & EFUSE_MT7688) {
mt762x_soc = MT762X_SOC_MT7688;
name = "MT7688";
} else {
mt762x_soc = MT762X_SOC_MT7628AN;
name = "MT7628AN";
}
soc_info->compatible = "ralink,mt7628an-soc";
} else {
panic("mt762x: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
@ -525,10 +544,14 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
(rev & CHIP_REV_ECO_MASK));
cfg0 = __raw_readl(sysc + SYSC_REG_SYSTEM_CONFIG0);
dram_type = (cfg0 >> SYSCFG0_DRAM_TYPE_SHIFT) & SYSCFG0_DRAM_TYPE_MASK;
if (is_mt76x8())
dram_type = cfg0 & DRAM_TYPE_MT7628_MASK;
else
dram_type = (cfg0 >> SYSCFG0_DRAM_TYPE_SHIFT) &
SYSCFG0_DRAM_TYPE_MASK;
soc_info->mem_base = MT7620_DRAM_BASE;
if (mt762x_soc == MT762X_SOC_MT7628AN)
if (is_mt76x8())
mt7628_dram_init(soc_info);
else
mt7620_dram_init(soc_info);
@ -541,7 +564,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
pr_info("Digital PMU set to %s control\n",
(pmu1 & DIG_SW_SEL) ? ("sw") : ("hw"));
if (mt762x_soc == MT762X_SOC_MT7628AN)
if (is_mt76x8())
rt2880_pinmux_data = mt7628an_pinmux_data;
else
rt2880_pinmux_data = mt7620a_pinmux_data;