Define default SoC input clock frequencies for i.MX35 in order to get rid of duplicated definitions.
Signed-off-by: Benoît Thébaudeau <benoit.thebaud...@advansee.com> Cc: Stefano Babic <sba...@denx.de> --- This patch depends on http://patchwork.ozlabs.org/patch/177437/ . Changes for v2: - New patch. .../arch/arm/cpu/arm1136/mx35/generic.c | 43 ++++++++------------ .../arch/arm/cpu/arm1136/mx35/timer.c | 2 +- .../arch/arm/include/asm/arch-mx35/clock.h | 14 +++++++ .../include/configs/flea3.h | 1 - .../include/configs/mx35pdk.h | 1 - 5 files changed, 31 insertions(+), 30 deletions(-) diff --git u-boot-imx-88e73dd.orig/arch/arm/cpu/arm1136/mx35/generic.c u-boot-imx-88e73dd/arch/arm/cpu/arm1136/mx35/generic.c index 8f61069..04c8341 100644 --- u-boot-imx-88e73dd.orig/arch/arm/cpu/arm1136/mx35/generic.c +++ u-boot-imx-88e73dd/arch/arm/cpu/arm1136/mx35/generic.c @@ -149,9 +149,7 @@ 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); } @@ -193,12 +191,10 @@ 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); - } + 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; @@ -253,12 +249,10 @@ unsigned int mxc_get_main_clock(enum mxc_main_clock clk) break; case USB_CLK: usb_podf = (reg4 >> 22) & 0x3F; - if (reg4 & 0x200) { + 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_podf + 1); break; @@ -285,15 +279,14 @@ unsigned int mxc_get_peri_clock(enum mxc_peri_clock clk) clk_sel = mpdr3 & (1 << 14); pdf = (mpdr4 >> 10) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - (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: @@ -301,15 +294,14 @@ unsigned int mxc_get_peri_clock(enum mxc_peri_clock 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); pdf = (mpdr2 >> 16) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - (pdf + 1); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case MSHC_CLK: pre_pdf = readl(&ccm->pdr1); @@ -317,36 +309,33 @@ unsigned int mxc_get_peri_clock(enum mxc_peri_clock 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; pdf = mpdr3 & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - (pdf + 1); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case ESDHC2_CLK: clk_sel = mpdr3 & 0x40; pdf = (mpdr3 >> 8) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - (pdf + 1); + decode_pll(readl(&ccm->ppctl), MXC_HCLK)) / (pdf + 1); break; case ESDHC3_CLK: clk_sel = mpdr3 & 0x40; pdf = (mpdr3 >> 16) & 0x3F; ret_val = ((clk_sel != 0) ? mxc_get_main_clock(CPU_CLK) : - decode_pll(readl(&ccm->ppctl), CONFIG_MX35_HCLK_FREQ)) / - (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: diff --git u-boot-imx-88e73dd.orig/arch/arm/cpu/arm1136/mx35/timer.c u-boot-imx-88e73dd/arch/arm/cpu/arm1136/mx35/timer.c index 04937a1..6000042 100644 --- u-boot-imx-88e73dd.orig/arch/arm/cpu/arm1136/mx35/timer.c +++ u-boot-imx-88e73dd/arch/arm/cpu/arm1136/mx35/timer.c @@ -101,7 +101,7 @@ ulong get_timer_masked(void) { /* * get_ticks() returns a long long (64 bit), it wraps in - * 2^64 / CONFIG_MX25_CLK32 = 2^64 / 2^15 = 2^49 ~ 5 * 10^14 (s) ~ + * 2^64 / MXC_CLK32 = 2^64 / 2^15 = 2^49 ~ 5 * 10^14 (s) ~ * 5 * 10^9 days... and get_ticks() * CONFIG_SYS_HZ wraps in * 5 * 10^6 days - long enough. */ diff --git u-boot-imx-88e73dd.orig/arch/arm/include/asm/arch-mx35/clock.h u-boot-imx-88e73dd/arch/arm/include/asm/arch-mx35/clock.h index 0575dad..60285df 100644 --- u-boot-imx-88e73dd.orig/arch/arm/include/asm/arch-mx35/clock.h +++ u-boot-imx-88e73dd/arch/arm/include/asm/arch-mx35/clock.h @@ -24,6 +24,20 @@ #ifndef __ASM_ARCH_CLOCK_H #define __ASM_ARCH_CLOCK_H +#include <common.h> + +#ifdef CONFIG_MX35_HCLK_FREQ +#define MXC_HCLK CONFIG_MX35_HCLK_FREQ +#else +#define MXC_HCLK 24000000 +#endif + +#ifdef CONFIG_MX35_CLK32 +#define MXC_CLK32 CONFIG_MX35_CLK32 +#else +#define MXC_CLK32 32768 +#endif + enum mxc_clock { MXC_ARM_CLK, MXC_AHB_CLK, diff --git u-boot-imx-88e73dd.orig/include/configs/flea3.h u-boot-imx-88e73dd/include/configs/flea3.h index e8e3c6a..815e2c5 100644 --- u-boot-imx-88e73dd.orig/include/configs/flea3.h +++ u-boot-imx-88e73dd/include/configs/flea3.h @@ -31,7 +31,6 @@ /* High Level Configuration Options */ #define CONFIG_ARM1136 /* This is an arm1136 CPU core */ #define CONFIG_MX35 -#define CONFIG_MX35_HCLK_FREQ 24000000 #define CONFIG_SYS_DCACHE_OFF #define CONFIG_SYS_CACHELINE_SIZE 32 diff --git u-boot-imx-88e73dd.orig/include/configs/mx35pdk.h u-boot-imx-88e73dd/include/configs/mx35pdk.h index f930ed0..751a1e3 100644 --- u-boot-imx-88e73dd.orig/include/configs/mx35pdk.h +++ u-boot-imx-88e73dd/include/configs/mx35pdk.h @@ -31,7 +31,6 @@ /* High Level Configuration Options */ #define CONFIG_ARM1136 /* This is an arm1136 CPU core */ #define CONFIG_MX35 -#define CONFIG_MX35_HCLK_FREQ 24000000 #define CONFIG_DISPLAY_CPUINFO _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
