/* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * Parts of this file are based on Ralink's 2.6.21 BSP * * Copyright (C) 2008-2011 Gabor Juhos * Copyright (C) 2008 Imre Kaloz * Copyright (C) 2013 John Crispin */ #include #include #include #include #include #include #include #include "common.h" enum rt305x_soc_type rt305x_soc; static struct rt2880_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) }; static struct rt2880_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) }; static struct rt2880_pmx_func uartf_func[] = { FUNC("uartf", RT305X_GPIO_MODE_UARTF, 7, 8), FUNC("pcm uartf", RT305X_GPIO_MODE_PCM_UARTF, 7, 8), FUNC("pcm i2s", RT305X_GPIO_MODE_PCM_I2S, 7, 8), FUNC("i2s uartf", RT305X_GPIO_MODE_I2S_UARTF, 7, 8), FUNC("pcm gpio", RT305X_GPIO_MODE_PCM_GPIO, 11, 4), FUNC("gpio uartf", RT305X_GPIO_MODE_GPIO_UARTF, 7, 4), FUNC("gpio i2s", RT305X_GPIO_MODE_GPIO_I2S, 7, 4), }; static struct rt2880_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) }; static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) }; static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) }; static struct rt2880_pmx_func rt5350_led_func[] = { FUNC("led", 0, 22, 5) }; static struct rt2880_pmx_func rt5350_cs1_func[] = { FUNC("spi_cs1", 0, 27, 1), FUNC("wdg_cs1", 1, 27, 1), }; static struct rt2880_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) }; static struct rt2880_pmx_func rt3352_rgmii_func[] = { FUNC("rgmii", 0, 24, 12) }; static struct rt2880_pmx_func rgmii_func[] = { FUNC("rgmii", 0, 40, 12) }; static struct rt2880_pmx_func rt3352_lna_func[] = { FUNC("lna", 0, 36, 2) }; static struct rt2880_pmx_func rt3352_pa_func[] = { FUNC("pa", 0, 38, 2) }; static struct rt2880_pmx_func rt3352_led_func[] = { FUNC("led", 0, 40, 5) }; static struct rt2880_pmx_group rt3050_pinmux_data[] = { GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C), GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI), GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK, RT305X_GPIO_MODE_UART0_SHIFT), GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1), GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG), GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO), GRP("rgmii", rgmii_func, 1, RT305X_GPIO_MODE_RGMII), GRP("sdram", sdram_func, 1, RT305X_GPIO_MODE_SDRAM), { 0 } }; static struct rt2880_pmx_group rt3352_pinmux_data[] = { GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C), GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI), GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK, RT305X_GPIO_MODE_UART0_SHIFT), GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1), GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG), GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO), GRP("rgmii", rt3352_rgmii_func, 1, RT305X_GPIO_MODE_RGMII), GRP("lna", rt3352_lna_func, 1, RT3352_GPIO_MODE_LNA), GRP("pa", rt3352_pa_func, 1, RT3352_GPIO_MODE_PA), GRP("led", rt3352_led_func, 1, RT5350_GPIO_MODE_PHY_LED), { 0 } }; static struct rt2880_pmx_group rt5350_pinmux_data[] = { GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C), GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI), GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK, RT305X_GPIO_MODE_UART0_SHIFT), GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1), GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG), GRP("led", rt5350_led_func, 1, RT5350_GPIO_MODE_PHY_LED), GRP("spi_cs1", rt5350_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1), { 0 } }; static unsigned long rt5350_get_mem_size(void) { void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT305X_SYSC_BASE); unsigned long ret; u32 t; t = __raw_readl(sysc + SYSC_REG_SYSTEM_CONFIG); t = (t >> RT5350_SYSCFG0_DRAM_SIZE_SHIFT) & RT5350_SYSCFG0_DRAM_SIZE_MASK; switch (t) { case RT5350_SYSCFG0_DRAM_SIZE_2M: ret = 2; break; case RT5350_SYSCFG0_DRAM_SIZE_8M: ret = 8; break; case RT5350_SYSCFG0_DRAM_SIZE_16M: ret = 16; break; case RT5350_SYSCFG0_DRAM_SIZE_32M: ret = 32; break; case RT5350_SYSCFG0_DRAM_SIZE_64M: ret = 64; break; default: panic("rt5350: invalid DRAM size: %u", t); break; } return ret; } void __init ralink_clk_init(void) { unsigned long cpu_rate, sys_rate, wdt_rate, uart_rate; unsigned long wmac_rate = 40000000; u32 t = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG); if (soc_is_rt305x() || soc_is_rt3350()) { t = (t >> RT305X_SYSCFG_CPUCLK_SHIFT) & RT305X_SYSCFG_CPUCLK_MASK; switch (t) { case RT305X_SYSCFG_CPUCLK_LOW: cpu_rate = 320000000; break; case RT305X_SYSCFG_CPUCLK_HIGH: cpu_rate = 384000000; break; } sys_rate = uart_rate = wdt_rate = cpu_rate / 3; } else if (soc_is_rt3352()) { t = (t >> RT3352_SYSCFG0_CPUCLK_SHIFT) & RT3352_SYSCFG0_CPUCLK_MASK; switch (t) { case RT3352_SYSCFG0_CPUCLK_LOW: cpu_rate = 384000000; break; case RT3352_SYSCFG0_CPUCLK_HIGH: cpu_rate = 400000000; break; } sys_rate = wdt_rate = cpu_rate / 3; uart_rate = 40000000; } else if (soc_is_rt5350()) { t = (t >> RT5350_SYSCFG0_CPUCLK_SHIFT) & RT5350_SYSCFG0_CPUCLK_MASK; switch (t) { case RT5350_SYSCFG0_CPUCLK_360: cpu_rate = 360000000; sys_rate = cpu_rate / 3; break; case RT5350_SYSCFG0_CPUCLK_320: cpu_rate = 320000000; sys_rate = cpu_rate / 4; break; case RT5350_SYSCFG0_CPUCLK_300: cpu_rate = 300000000; sys_rate = cpu_rate / 3; break; default: BUG(); } uart_rate = 40000000; wdt_rate = sys_rate; } else { BUG(); } if (soc_is_rt3352() || soc_is_rt5350()) { u32 val = rt_sysc_r32(RT3352_SYSC_REG_SYSCFG0); if (!(val & RT3352_CLKCFG0_XTAL_SEL)) wmac_rate = 20000000; } ralink_clk_add("cpu", cpu_rate); ralink_clk_add("10000b00.spi", sys_rate); ralink_clk_add("10000100.timer", wdt_rate); ralink_clk_add("10000120.watchdog", wdt_rate); ralink_clk_add("10000500.uart", uart_rate); ralink_clk_add("10000c00.uartlite", uart_rate); ralink_clk_add("10100000.ethernet", sys_rate); ralink_clk_add("10180000.wmac", wmac_rate); } void __init ralink_of_remap(void) { rt_sysc_membase = plat_of_remap_node("ralink,rt3050-sysc"); rt_memc_membase = plat_of_remap_node("ralink,rt3050-memc"); if (!rt_sysc_membase || !rt_memc_membase) panic("Failed to remap core resources"); } void prom_soc_init(struct ralink_soc_info *soc_info) { void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT305X_SYSC_BASE); unsigned char *name; u32 n0; u32 n1; u32 id; n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0); n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1); if (n0 == RT3052_CHIP_NAME0 && n1 == RT3052_CHIP_NAME1) { unsigned long icache_sets; icache_sets = (read_c0_config1() >> 22) & 7; if (icache_sets == 1) { rt305x_soc = RT305X_SOC_RT3050; name = "RT3050"; soc_info->compatible = "ralink,rt3050-soc"; } else { rt305x_soc = RT305X_SOC_RT3052; name = "RT3052"; soc_info->compatible = "ralink,rt3052-soc"; } } else if (n0 == RT3350_CHIP_NAME0 && n1 == RT3350_CHIP_NAME1) { rt305x_soc = RT305X_SOC_RT3350; name = "RT3350"; soc_info->compatible = "ralink,rt3350-soc"; } else if (n0 == RT3352_CHIP_NAME0 && n1 == RT3352_CHIP_NAME1) { rt305x_soc = RT305X_SOC_RT3352; name = "RT3352"; soc_info->compatible = "ralink,rt3352-soc"; } else if (n0 == RT5350_CHIP_NAME0 && n1 == RT5350_CHIP_NAME1) { rt305x_soc = RT305X_SOC_RT5350; name = "RT5350"; soc_info->compatible = "ralink,rt5350-soc"; } else { panic("rt305x: unknown SoC, n0:%08x n1:%08x", n0, n1); } id = __raw_readl(sysc + SYSC_REG_CHIP_ID); snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN, "Ralink %s id:%u rev:%u", name, (id >> CHIP_ID_ID_SHIFT) & CHIP_ID_ID_MASK, (id & CHIP_ID_REV_MASK)); soc_info->mem_base = RT305X_SDRAM_BASE; if (soc_is_rt5350()) { soc_info->mem_size = rt5350_get_mem_size(); rt2880_pinmux_data = rt5350_pinmux_data; } else if (soc_is_rt305x() || soc_is_rt3350()) { soc_info->mem_size_min = RT305X_MEM_SIZE_MIN; soc_info->mem_size_max = RT305X_MEM_SIZE_MAX; rt2880_pinmux_data = rt3050_pinmux_data; } else if (soc_is_rt3352()) { soc_info->mem_size_min = RT3352_MEM_SIZE_MIN; soc_info->mem_size_max = RT3352_MEM_SIZE_MAX; rt2880_pinmux_data = rt3352_pinmux_data; } }