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ar71xx: rename ar934x_ref_freq to ar71xx_ref_freq

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Also initialize that for each SoC and print its value along with the
other frequencies.

SVN-Revision: 26561
This commit is contained in:
Gabor Juhos 2011-04-09 18:47:52 +00:00
parent 5573d6eb28
commit a8bf5e3cdb
4 changed files with 25 additions and 20 deletions
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2
target/linux/ar71xx/files/arch/mips/ar71xx/devices.c
View file

@ -74,7 +74,7 @@ void __init ar71xx_add_device_uart(void)
case AR71XX_SOC_AR9341:
case AR71XX_SOC_AR9342:
case AR71XX_SOC_AR9344:
ar71xx_uart_data[0].uartclk = ar934x_ref_freq;
ar71xx_uart_data[0].uartclk = ar71xx_ref_freq;
break;
default:

39
target/linux/ar71xx/files/arch/mips/ar71xx/setup.c
View file

@ -28,9 +28,6 @@
#include "devices.h"
#define AR71XX_SYS_TYPE_LEN 64
#define AR71XX_BASE_FREQ 40000000
#define AR91XX_BASE_FREQ 5000000
#define AR724X_BASE_FREQ 5000000
u32 ar71xx_cpu_freq;
EXPORT_SYMBOL_GPL(ar71xx_cpu_freq);
@ -41,8 +38,8 @@ EXPORT_SYMBOL_GPL(ar71xx_ahb_freq);
u32 ar71xx_ddr_freq;
EXPORT_SYMBOL_GPL(ar71xx_ddr_freq);
u32 ar934x_ref_freq;
EXPORT_SYMBOL_GPL(ar934x_ref_freq);
u32 ar71xx_ref_freq;
EXPORT_SYMBOL_GPL(ar71xx_ref_freq);
enum ar71xx_soc_type ar71xx_soc;
EXPORT_SYMBOL_GPL(ar71xx_soc);
@ -174,14 +171,12 @@ static void __init ar71xx_detect_sys_type(void)
static void __init ar934x_detect_sys_frequency(void)
{
u32 pll, out_div, ref_div, nint, frac, clk_ctrl, ref, postdiv;
u32 pll, out_div, ref_div, nint, frac, clk_ctrl, postdiv;
if (ar71xx_reset_rr(AR934X_RESET_REG_BOOTSTRAP) & AR934X_REF_CLK_40)
ref = (40 * 1000000);
ar71xx_ref_freq = 40 * 1000 * 1000;
else
ref = (25 * 1000000);
ar934x_ref_freq = ref;
ar71xx_ref_freq = 25 * 1000 * 1000;
clk_ctrl = ar71xx_pll_rr(AR934X_PLL_REG_DDR_CTRL_CLOCK);
@ -191,14 +186,16 @@ static void __init ar934x_detect_sys_frequency(void)
nint = AR934X_CPU_PLL_CFG_NINT_GET(pll);
frac = AR934X_CPU_PLL_CFG_NFRAC_GET(pll);
postdiv = AR934X_CPU_DDR_CLK_CTRL_CPU_POST_DIV_GET(clk_ctrl);
ar71xx_cpu_freq = ((nint * ref / ref_div) >> out_div) / (postdiv + 1);
ar71xx_cpu_freq = ((nint * ar71xx_ref_freq / ref_div) >> out_div) /
(postdiv + 1);
out_div = AR934X_DDR_PLL_CFG_OUTDIV_GET(pll);
ref_div = AR934X_DDR_PLL_CFG_REFDIV_GET(pll);
nint = AR934X_DDR_PLL_CFG_NINT_GET(pll);
frac = AR934X_DDR_PLL_CFG_NFRAC_GET(pll);
postdiv = AR934X_CPU_DDR_CLK_CTRL_DDR_POST_DIV_GET(clk_ctrl);
ar71xx_ddr_freq = ((nint * ref / ref_div) >> out_div) / (postdiv + 1);
ar71xx_ddr_freq = ((nint * ar71xx_ref_freq / ref_div) >> out_div) /
(postdiv + 1);
postdiv = AR934X_CPU_DDR_CLK_CTRL_AHB_POST_DIV_GET(clk_ctrl);
@ -216,10 +213,12 @@ static void __init ar91xx_detect_sys_frequency(void)
u32 freq;
u32 div;
ar71xx_ref_freq = 5 * 1000 * 1000;
pll = ar71xx_pll_rr(AR91XX_PLL_REG_CPU_CONFIG);
div = ((pll >> AR91XX_PLL_DIV_SHIFT) & AR91XX_PLL_DIV_MASK);
freq = div * AR91XX_BASE_FREQ;
freq = div * ar71xx_ref_freq;
ar71xx_cpu_freq = freq;
@ -236,10 +235,12 @@ static void __init ar71xx_detect_sys_frequency(void)
u32 freq;
u32 div;
ar71xx_ref_freq = 40 * 1000 * 1000;
pll = ar71xx_pll_rr(AR71XX_PLL_REG_CPU_CONFIG);
div = ((pll >> AR71XX_PLL_DIV_SHIFT) & AR71XX_PLL_DIV_MASK) + 1;
freq = div * AR71XX_BASE_FREQ;
freq = div * ar71xx_ref_freq;
div = ((pll >> AR71XX_CPU_DIV_SHIFT) & AR71XX_CPU_DIV_MASK) + 1;
ar71xx_cpu_freq = freq / div;
@ -257,10 +258,12 @@ static void __init ar724x_detect_sys_frequency(void)
u32 freq;
u32 div;
ar71xx_ref_freq = 5 * 1000 * 1000;
pll = ar71xx_pll_rr(AR724X_PLL_REG_CPU_CONFIG);
div = ((pll >> AR724X_PLL_DIV_SHIFT) & AR724X_PLL_DIV_MASK);
freq = div * AR724X_BASE_FREQ;
freq = div * ar71xx_ref_freq;
div = ((pll >> AR724X_PLL_REF_DIV_SHIFT) & AR724X_PLL_REF_DIV_MASK);
freq *= div;
@ -336,10 +339,12 @@ void __init plat_mem_setup(void)
ar71xx_detect_sys_type();
detect_sys_frequency();
pr_info("Clocks: CPU:%u.%03u MHz, AHB:%u.%03u MHz, DDR:%u.%03u MHz\n",
pr_info("Clocks: CPU:%u.%03uMHz, DDR:%u.%03uMHz, AHB:%u.%03uMHz, "
"Ref:%u.%03uMHz",
ar71xx_cpu_freq / 1000000, (ar71xx_cpu_freq / 1000) % 1000,
ar71xx_ddr_freq / 1000000, (ar71xx_ddr_freq / 1000) % 1000,
ar71xx_ahb_freq / 1000000, (ar71xx_ahb_freq / 1000) % 1000,
ar71xx_ddr_freq / 1000000, (ar71xx_ddr_freq / 1000) % 1000);
ar71xx_ref_freq / 1000000, (ar71xx_ref_freq / 1000) % 1000);
_machine_restart = ar71xx_restart;
_machine_halt = ar71xx_halt;

2
target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
View file

@ -115,7 +115,7 @@
extern u32 ar71xx_ahb_freq;
extern u32 ar71xx_cpu_freq;
extern u32 ar71xx_ddr_freq;
extern u32 ar934x_ref_freq;
extern u32 ar71xx_ref_freq;
enum ar71xx_soc_type {
AR71XX_SOC_UNKNOWN,

2
target/linux/ar71xx/files/drivers/watchdog/ar71xx_wdt.c
View file

@ -222,7 +222,7 @@ static int __devinit ar71xx_wdt_probe(struct platform_device *pdev)
case AR71XX_SOC_AR9341:
case AR71XX_SOC_AR9342:
case AR71XX_SOC_AR9344:
wdt_clk_freq = ar934x_ref_freq;
wdt_clk_freq = ar71xx_ref_freq;
break;
default: