X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farm1136%2Fmx35%2Fgeneric.c;h=bc98edda7a2f49f13bd3a3fa9059bf267e7aceb9;hb=850f788709cef8f7d53d571aec3bfb73b14c5531;hp=986b1f94632ad87b1dc234da0a200f89f7e5c362;hpb=e91004201c4265edf7897c4f8e0c21cd1dce0505;p=u-boot diff --git a/arch/arm/cpu/arm1136/mx35/generic.c b/arch/arm/cpu/arm1136/mx35/generic.c index 986b1f9463..bc98edda7a 100644 --- a/arch/arm/cpu/arm1136/mx35/generic.c +++ b/arch/arm/cpu/arm1136/mx35/generic.c @@ -4,33 +4,22 @@ * * (C) Copyright 2008-2010 Freescale Semiconductor, Inc. * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include +#include #include #include #include #include #include #include +#ifdef CONFIG_FSL_ESDHC +#include +#endif #include +#include #define CLK_CODE(arm, ahb, sel) (((arm) << 16) + ((ahb) << 8) + (sel)) #define CLK_CODE_ARM(c) (((c) >> 16) & 0xFF) @@ -126,15 +115,17 @@ static int get_ahb_div(u32 pdr0) static u32 decode_pll(u32 reg, u32 infreq) { u32 mfi = (reg >> 10) & 0xf; - u32 mfn = reg & 0x3f; - u32 mfd = (reg >> 16) & 0x3f; + s32 mfn = reg & 0x3ff; + u32 mfd = (reg >> 16) & 0x3ff; u32 pd = (reg >> 26) & 0xf; mfi = mfi <= 5 ? 5 : mfi; + mfn = mfn >= 512 ? mfn - 1024 : mfn; mfd += 1; pd += 1; - return ((2 * (infreq / 1000) * (mfi * mfd + mfn)) / (mfd * pd)) * 1000; + return lldiv(2 * (u64)infreq * (mfi * mfd + mfn), + mfd * pd); } static u32 get_mcu_main_clk(void) @@ -143,9 +134,7 @@ static u32 get_mcu_main_clk(void) struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; arm_div = get_arm_div(readl(&ccm->pdr0), &fi, &fd); - fi *= - decode_pll(readl(&ccm->mpctl), - CONFIG_MX35_HCLK_FREQ); + fi *= decode_pll(readl(&ccm->mpctl), MXC_HCLK); return fi / (arm_div * fd); } @@ -168,17 +157,14 @@ static u32 get_ipg_per_clk(void) u32 pdr4 = readl(&ccm->pdr4); u32 div; if (pdr0 & MXC_CCM_PDR0_PER_SEL) { - div = (CCM_GET_DIVIDER(pdr4, - MXC_CCM_PDR4_PER0_PRDF_MASK, - MXC_CCM_PDR4_PER0_PODF_OFFSET) + 1) * - (CCM_GET_DIVIDER(pdr4, + div = CCM_GET_DIVIDER(pdr4, MXC_CCM_PDR4_PER0_PODF_MASK, - MXC_CCM_PDR4_PER0_PODF_OFFSET) + 1); + MXC_CCM_PDR4_PER0_PODF_OFFSET) + 1; } else { div = CCM_GET_DIVIDER(pdr0, MXC_CCM_PDR0_PER_PODF_MASK, MXC_CCM_PDR0_PER_PODF_OFFSET) + 1; - freq /= get_ahb_div(pdr0); + div *= get_ahb_div(pdr0); } return freq / div; } @@ -190,25 +176,20 @@ u32 imx_get_uartclk(void) (struct ccm_regs *)IMX_CCM_BASE; u32 pdr4 = readl(&ccm->pdr4); - if (readl(&ccm->pdr3) & MXC_CCM_PDR3_UART_M_U) { + if (readl(&ccm->pdr3) & MXC_CCM_PDR3_UART_M_U) freq = get_mcu_main_clk(); - } else { - freq = decode_pll(readl(&ccm->ppctl), - CONFIG_MX35_HCLK_FREQ); - } - freq /= ((CCM_GET_DIVIDER(pdr4, - MXC_CCM_PDR4_UART_PRDF_MASK, - MXC_CCM_PDR4_UART_PRDF_OFFSET) + 1) * - (CCM_GET_DIVIDER(pdr4, + else + freq = decode_pll(readl(&ccm->ppctl), MXC_HCLK); + freq /= CCM_GET_DIVIDER(pdr4, MXC_CCM_PDR4_UART_PODF_MASK, - MXC_CCM_PDR4_UART_PODF_OFFSET) + 1)); + MXC_CCM_PDR4_UART_PODF_OFFSET) + 1; return freq; } -unsigned int mxc_get_main_clock(enum mxc_main_clocks clk) +unsigned int mxc_get_main_clock(enum mxc_main_clock clk) { u32 nfc_pdf, hsp_podf; - u32 pll, ret_val = 0, usb_prdf, usb_podf; + u32 pll, ret_val = 0, usb_podf; struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; @@ -252,16 +233,13 @@ unsigned int mxc_get_main_clock(enum mxc_main_clocks clk) ret_val = pll / (nfc_pdf + 1); break; case USB_CLK: - usb_prdf = (reg4 >> 25) & 0x7; - usb_podf = (reg4 >> 22) & 0x7; - if (reg4 & 0x200) { + usb_podf = (reg4 >> 22) & 0x3F; + if (reg4 & 0x200) pll = get_mcu_main_clk(); - } else { - pll = decode_pll(readl(&ccm->ppctl), - CONFIG_MX35_HCLK_FREQ); - } + else + pll = decode_pll(readl(&ccm->ppctl), MXC_HCLK); - ret_val = pll / ((usb_prdf + 1) * (usb_podf + 1)); + ret_val = pll / (usb_podf + 1); break; default: printf("Unknown clock: %d\n", clk); @@ -270,7 +248,7 @@ unsigned int mxc_get_main_clock(enum mxc_main_clocks clk) return ret_val; } -unsigned int mxc_get_peri_clock(enum mxc_peri_clocks clk) +unsigned int mxc_get_peri_clock(enum mxc_peri_clock clk) { u32 ret_val = 0, pdf, pre_pdf, clk_sel; struct ccm_regs *ccm = @@ -284,18 +262,16 @@ unsigned int mxc_get_peri_clock(enum mxc_peri_clocks clk) case UART2_BAUD: case UART3_BAUD: clk_sel = mpdr3 & (1 << 14); - pre_pdf = (mpdr4 >> 13) & 0x7; - pdf = (mpdr4 >> 10) & 0x7; + pdf = (mpdr4 >> 10) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - ((pre_pdf + 1) * (pdf + 1)); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case SSI1_BAUD: pre_pdf = (mpdr2 >> 24) & 0x7; pdf = mpdr2 & 0x3F; clk_sel = mpdr2 & (1 << 6); ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / ((pre_pdf + 1) * (pdf + 1)); break; case SSI2_BAUD: @@ -303,16 +279,14 @@ unsigned int mxc_get_peri_clock(enum mxc_peri_clocks clk) pdf = (mpdr2 >> 8) & 0x3F; clk_sel = mpdr2 & (1 << 6); ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / ((pre_pdf + 1) * (pdf + 1)); break; case CSI_BAUD: clk_sel = mpdr2 & (1 << 7); - pre_pdf = (mpdr2 >> 16) & 0x7; - pdf = (mpdr2 >> 19) & 0x7; + pdf = (mpdr2 >> 16) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - ((pre_pdf + 1) * (pdf + 1)); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case MSHC_CLK: pre_pdf = readl(&ccm->pdr1); @@ -320,39 +294,33 @@ unsigned int mxc_get_peri_clock(enum mxc_peri_clocks clk) pdf = (pre_pdf >> 22) & 0x3F; pre_pdf = (pre_pdf >> 28) & 0x7; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / ((pre_pdf + 1) * (pdf + 1)); break; case ESDHC1_CLK: clk_sel = mpdr3 & 0x40; - pre_pdf = mpdr3 & 0x7; - pdf = (mpdr3>>3) & 0x7; + pdf = mpdr3 & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - ((pre_pdf + 1) * (pdf + 1)); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case ESDHC2_CLK: clk_sel = mpdr3 & 0x40; - pre_pdf = (mpdr3 >> 8) & 0x7; - pdf = (mpdr3 >> 11) & 0x7; + pdf = (mpdr3 >> 8) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - ((pre_pdf + 1) * (pdf + 1)); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case ESDHC3_CLK: clk_sel = mpdr3 & 0x40; - pre_pdf = (mpdr3 >> 16) & 0x7; - pdf = (mpdr3 >> 19) & 0x7; + pdf = (mpdr3 >> 16) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - ((pre_pdf + 1) * (pdf + 1)); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case SPDIF_CLK: clk_sel = mpdr3 & 0x400000; pre_pdf = (mpdr3 >> 29) & 0x7; pdf = (mpdr3 >> 23) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / ((pre_pdf + 1) * (pdf + 1)); break; default: @@ -374,11 +342,16 @@ unsigned int mxc_get_clock(enum mxc_clock clk) case MXC_IPG_CLK: return get_ipg_clk(); case MXC_IPG_PERCLK: + case MXC_I2C_CLK: return get_ipg_per_clk(); case MXC_UART_CLK: return imx_get_uartclk(); - case MXC_ESDHC_CLK: + case MXC_ESDHC1_CLK: return mxc_get_peri_clock(ESDHC1_CLK); + case MXC_ESDHC2_CLK: + return mxc_get_peri_clock(ESDHC2_CLK); + case MXC_ESDHC3_CLK: + return mxc_get_peri_clock(ESDHC3_CLK); case MXC_USB_CLK: return mxc_get_main_clock(USB_CLK); case MXC_FEC_CLK: @@ -463,7 +436,6 @@ int print_cpuinfo(void) * Initializes on-chip ethernet controllers. * to override, implement board_eth_init() */ - int cpu_eth_init(bd_t *bis) { int rc = -ENODEV; @@ -475,16 +447,101 @@ int cpu_eth_init(bd_t *bis) return rc; } +#ifdef CONFIG_FSL_ESDHC +/* + * Initializes on-chip MMC controllers. + * to override, implement board_mmc_init() + */ +int cpu_mmc_init(bd_t *bis) +{ + return fsl_esdhc_mmc_init(bis); +} +#endif + int get_clocks(void) { #ifdef CONFIG_FSL_ESDHC - gd->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); +#if CONFIG_SYS_FSL_ESDHC_ADDR == MMC_SDHC2_BASE_ADDR + gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); +#elif CONFIG_SYS_FSL_ESDHC_ADDR == MMC_SDHC3_BASE_ADDR + gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); +#else + gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK); +#endif #endif return 0; } -void reset_cpu(ulong addr) +#define RCSR_MEM_CTL_WEIM 0 +#define RCSR_MEM_CTL_NAND 1 +#define RCSR_MEM_CTL_ATA 2 +#define RCSR_MEM_CTL_EXPANSION 3 +#define RCSR_MEM_TYPE_NOR 0 +#define RCSR_MEM_TYPE_ONENAND 2 +#define RCSR_MEM_TYPE_SD 0 +#define RCSR_MEM_TYPE_I2C 2 +#define RCSR_MEM_TYPE_SPI 3 + +u32 spl_boot_device(void) { - struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE_ADDR; - writew(4, &wdog->wcr); + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + + u32 rcsr = readl(&ccm->rcsr); + u32 mem_type, mem_ctl; + + /* In external mode, no boot device is returned */ + if ((rcsr >> 10) & 0x03) + return BOOT_DEVICE_NONE; + + mem_ctl = (rcsr >> 25) & 0x03; + mem_type = (rcsr >> 23) & 0x03; + + switch (mem_ctl) { + case RCSR_MEM_CTL_WEIM: + switch (mem_type) { + case RCSR_MEM_TYPE_NOR: + return BOOT_DEVICE_NOR; + case RCSR_MEM_TYPE_ONENAND: + return BOOT_DEVICE_ONENAND; + default: + return BOOT_DEVICE_NONE; + } + case RCSR_MEM_CTL_NAND: + return BOOT_DEVICE_NAND; + case RCSR_MEM_CTL_EXPANSION: + switch (mem_type) { + case RCSR_MEM_TYPE_SD: + return BOOT_DEVICE_MMC1; + case RCSR_MEM_TYPE_I2C: + return BOOT_DEVICE_I2C; + case RCSR_MEM_TYPE_SPI: + return BOOT_DEVICE_SPI; + default: + return BOOT_DEVICE_NONE; + } + } + + return BOOT_DEVICE_NONE; } + +#ifdef CONFIG_SPL_BUILD +u32 spl_boot_mode(void) +{ + switch (spl_boot_device()) { + case BOOT_DEVICE_MMC1: +#ifdef CONFIG_SPL_FAT_SUPPORT + return MMCSD_MODE_FS; +#else + return MMCSD_MODE_RAW; +#endif + break; + case BOOT_DEVICE_NAND: + return 0; + break; + default: + puts("spl: ERROR: unsupported device\n"); + hang(); + } +} +#endif