diff options
Diffstat (limited to 'arch/mips/ralink/mt7621.c')
| -rw-r--r-- | arch/mips/ralink/mt7621.c | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c index 0accb80db709..ca0ac607b0f3 100644 --- a/arch/mips/ralink/mt7621.c +++ b/arch/mips/ralink/mt7621.c @@ -20,11 +20,6 @@ #include "common.h" -#define SYSC_REG_SYSCFG 0x10 -#define SYSC_REG_CPLL_CLKCFG0 0x2c -#define SYSC_REG_CUR_CLK_STS 0x44 -#define CPU_CLK_SEL (BIT(30) | BIT(31)) - #define MT7621_GPIO_MODE_UART1 1 #define MT7621_GPIO_MODE_I2C 2 #define MT7621_GPIO_MODE_UART3_MASK 0x3 @@ -115,44 +110,6 @@ phys_addr_t mips_cpc_default_phys_base(void) panic("Cannot detect cpc address"); } -void __init ralink_clk_init(void) -{ - int cpu_fdiv = 0; - int cpu_ffrac = 0; - int fbdiv = 0; - u32 clk_sts, syscfg; - u8 clk_sel = 0, xtal_mode; - u32 cpu_clk; - - if ((rt_sysc_r32(SYSC_REG_CPLL_CLKCFG0) & CPU_CLK_SEL) != 0) - clk_sel = 1; - - switch (clk_sel) { - case 0: - clk_sts = rt_sysc_r32(SYSC_REG_CUR_CLK_STS); - cpu_fdiv = ((clk_sts >> 8) & 0x1F); - cpu_ffrac = (clk_sts & 0x1F); - cpu_clk = (500 * cpu_ffrac / cpu_fdiv) * 1000 * 1000; - break; - - case 1: - fbdiv = ((rt_sysc_r32(0x648) >> 4) & 0x7F) + 1; - syscfg = rt_sysc_r32(SYSC_REG_SYSCFG); - xtal_mode = (syscfg >> 6) & 0x7; - if (xtal_mode >= 6) { - /* 25Mhz Xtal */ - cpu_clk = 25 * fbdiv * 1000 * 1000; - } else if (xtal_mode >= 3) { - /* 40Mhz Xtal */ - cpu_clk = 40 * fbdiv * 1000 * 1000; - } else { - /* 20Mhz Xtal */ - cpu_clk = 20 * fbdiv * 1000 * 1000; - } - break; - } -} - void __init ralink_of_remap(void) { rt_sysc_membase = plat_of_remap_node("mtk,mt7621-sysc"); |