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-rw-r--r--cpu/arm925t/interrupts.c88
-rw-r--r--cpu/arm926ejs/at91/clock.c2
-rw-r--r--cpu/arm_cortexa8/cpu.c4
-rw-r--r--cpu/arm_cortexa8/omap3/board.c27
-rw-r--r--cpu/arm_cortexa8/omap3/clock.c5
-rw-r--r--cpu/arm_cortexa8/omap3/sys_info.c147
6 files changed, 122 insertions, 151 deletions
diff --git a/cpu/arm925t/interrupts.c b/cpu/arm925t/interrupts.c
index e5c77f7..ec2a978 100644
--- a/cpu/arm925t/interrupts.c
+++ b/cpu/arm925t/interrupts.c
@@ -1,4 +1,7 @@
/*
+ * (C) Copyright 2009
+ * 2N Telekomunikace, <www.2n.cz>
+ *
* (C) Copyright 2003
* Texas Instruments, <www.ti.com>
*
@@ -37,7 +40,8 @@
#include <configs/omap1510.h>
#include <asm/io.h>
-#define TIMER_LOAD_VAL 0xffffffff
+#define TIMER_LOAD_VAL 0xffffffff
+#define TIMER_CLOCK (CONFIG_SYS_CLK_FREQ / (2 << CONFIG_SYS_PTV))
static uint32_t timestamp;
static uint32_t lastdec;
@@ -79,85 +83,41 @@ void set_timer (ulong t)
/* delay x useconds AND preserve advance timestamp value */
void udelay (unsigned long usec)
{
- ulong tmo, tmp;
-
- if (usec >= 1000) { /* if "big" number, spread normalization to seconds */
- tmo = usec / 1000; /* start to normalize for usec to ticks per sec */
- tmo *= CONFIG_SYS_HZ; /* find number of "ticks" to wait to achieve target */
- tmo /= 1000; /* finish normalize. */
- } else { /* else small number, don't kill it prior to HZ multiply */
- tmo = usec * CONFIG_SYS_HZ;
- tmo /= (1000*1000);
+ int32_t tmo = usec * (TIMER_CLOCK / 1000) / 1000;
+ uint32_t now, last = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
+
+ while (tmo > 0) {
+ now = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
+ if (last < now) /* count down timer underflow */
+ tmo -= TIMER_LOAD_VAL - now + last;
+ else
+ tmo -= last - now;
+ last = now;
}
-
- tmp = get_timer (0); /* get current timestamp */
- if ((tmo + tmp + 1) < tmp) /* if setting this fordward will roll time stamp */
- reset_timer_masked (); /* reset "advancing" timestamp to 0, set lastdec value */
- else
- tmo += tmp; /* else, set advancing stamp wake up time */
-
- while (get_timer_masked () < tmo) /* loop till event */
- /*NOP*/;
}
void reset_timer_masked (void)
{
/* reset time */
- lastdec = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
+ lastdec = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM) /
+ (TIMER_CLOCK / CONFIG_SYS_HZ);
timestamp = 0; /* start "advancing" time stamp from 0 */
}
ulong get_timer_masked (void)
{
- uint32_t now = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
-
- if (lastdec >= now) { /* normal mode (non roll) */
- /* normal mode */
- timestamp += lastdec - now; /* move stamp fordward with absoulte diff ticks */
- } else { /* we have overflow of the count down timer */
- /* nts = ts + ld + (TLV - now)
- * ts=old stamp, ld=time that passed before passing through -1
- * (TLV-now) amount of time after passing though -1
- * nts = new "advancing time stamp"...it could also roll and cause problems.
- */
- timestamp += lastdec + TIMER_LOAD_VAL - now;
- }
+ uint32_t now = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM) /
+ (TIMER_CLOCK / CONFIG_SYS_HZ);
+ if (lastdec < now) /* count down timer underflow */
+ timestamp += TIMER_LOAD_VAL / (TIMER_CLOCK / CONFIG_SYS_HZ) -
+ now + lastdec;
+ else
+ timestamp += lastdec - now;
lastdec = now;
return timestamp;
}
-/* waits specified delay value and resets timestamp */
-void udelay_masked (unsigned long usec)
-{
-#ifdef CONFIG_INNOVATOROMAP1510
- #define LOOPS_PER_MSEC 60 /* tuned on omap1510 */
- volatile int i, time_remaining = LOOPS_PER_MSEC*usec;
- for (i=time_remaining; i>0; i--) { }
-#else
-
- ulong tmo;
- ulong endtime;
- signed long diff;
-
- if (usec >= 1000) { /* if "big" number, spread normalization to seconds */
- tmo = usec / 1000; /* start to normalize for usec to ticks per sec */
- tmo *= CONFIG_SYS_HZ; /* find number of "ticks" to wait to achieve target */
- tmo /= 1000; /* finish normalize. */
- } else { /* else small number, don't kill it prior to HZ multiply */
- tmo = usec * CONFIG_SYS_HZ;
- tmo /= (1000*1000);
- }
-
- endtime = get_timer_masked () + tmo;
-
- do {
- ulong now = get_timer_masked ();
- diff = endtime - now;
- } while (diff >= 0);
-#endif
-}
-
/*
* This function is derived from PowerPC code (read timebase as long long).
* On ARM it just returns the timer value.
diff --git a/cpu/arm926ejs/at91/clock.c b/cpu/arm926ejs/at91/clock.c
index 31e53b3..f776f70 100644
--- a/cpu/arm926ejs/at91/clock.c
+++ b/cpu/arm926ejs/at91/clock.c
@@ -126,6 +126,7 @@ static unsigned at91_pll_calc(unsigned main_freq, unsigned out_freq)
fail:
return 0;
}
+#endif
static u32 at91_pll_rate(u32 freq, u32 reg)
{
@@ -141,7 +142,6 @@ static u32 at91_pll_rate(u32 freq, u32 reg)
return freq;
}
-#endif
int at91_clock_init(unsigned long main_clock)
{
diff --git a/cpu/arm_cortexa8/cpu.c b/cpu/arm_cortexa8/cpu.c
index 5e7b935..3e1780b 100644
--- a/cpu/arm_cortexa8/cpu.c
+++ b/cpu/arm_cortexa8/cpu.c
@@ -101,7 +101,7 @@ void l2cache_enable()
volatile unsigned int j;
/* ES2 onwards we can disable/enable L2 ourselves */
- if (get_cpu_rev() == CPU_3430_ES2) {
+ if (get_cpu_rev() >= CPU_3XX_ES20) {
__asm__ __volatile__("mrc p15, 0, %0, c1, c0, 1":"=r"(i));
__asm__ __volatile__("orr %0, %0, #0x2":"=r"(i));
__asm__ __volatile__("mcr p15, 0, %0, c1, c0, 1":"=r"(i));
@@ -131,7 +131,7 @@ void l2cache_disable()
volatile unsigned int j;
/* ES2 onwards we can disable/enable L2 ourselves */
- if (get_cpu_rev() == CPU_3430_ES2) {
+ if (get_cpu_rev() >= CPU_3XX_ES20) {
__asm__ __volatile__("mrc p15, 0, %0, c1, c0, 1":"=r"(i));
__asm__ __volatile__("bic %0, %0, #0x2":"=r"(i));
__asm__ __volatile__("mcr p15, 0, %0, c1, c0, 1":"=r"(i));
diff --git a/cpu/arm_cortexa8/omap3/board.c b/cpu/arm_cortexa8/omap3/board.c
index 15ea936..51d5cf6 100644
--- a/cpu/arm_cortexa8/omap3/board.c
+++ b/cpu/arm_cortexa8/omap3/board.c
@@ -39,6 +39,8 @@
extern omap3_sysinfo sysinfo;
+extern u32 is_mem_sdr(void);
+
/******************************************************************************
* Routine: delay
* Description: spinning delay to use before udelay works
@@ -272,11 +274,6 @@ int dram_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
unsigned int size0 = 0, size1 = 0;
- u32 btype;
-
- btype = get_board_type();
-
- display_board_info(btype);
/*
* If a second bank of DDR is attached to CS1 this is
@@ -342,3 +339,23 @@ U_BOOT_CMD(
);
#endif /* CONFIG_NAND_OMAP_GPMC */
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+/**
+ * Print board information
+ */
+int checkboard (void)
+{
+ char *mem_s ;
+
+ if (is_mem_sdr())
+ mem_s = "mSDR";
+ else
+ mem_s = "LPDDR";
+
+ printf("%s + %s/%s\n", sysinfo.board_string, mem_s,
+ sysinfo.nand_string);
+
+ return 0;
+}
+#endif /* CONFIG_DISPLAY_BOARDINFO */
diff --git a/cpu/arm_cortexa8/omap3/clock.c b/cpu/arm_cortexa8/omap3/clock.c
index 8ac31be..d035677 100644
--- a/cpu/arm_cortexa8/omap3/clock.c
+++ b/cpu/arm_cortexa8/omap3/clock.c
@@ -132,7 +132,7 @@ void prcm_init(void)
void (*f_lock_pll) (u32, u32, u32, u32);
int xip_safe, p0, p1, p2, p3;
u32 osc_clk = 0, sys_clkin_sel;
- u32 clk_index, sil_index;
+ u32 clk_index, sil_index = 0;
prm_t *prm_base = (prm_t *)PRM_BASE;
prcm_t *prcm_base = (prcm_t *)PRCM_BASE;
dpll_param *dpll_param_p;
@@ -170,7 +170,8 @@ void prcm_init(void)
* and sil_index will get the values for that SysClk for the
* appropriate silicon rev.
*/
- sil_index = get_cpu_rev() - 1;
+ if (get_cpu_rev())
+ sil_index = 1;
/* Unlock MPU DPLL (slows things down, and needed later) */
sr32(&prcm_base->clken_pll_mpu, 0, 3, PLL_LOW_POWER_BYPASS);
diff --git a/cpu/arm_cortexa8/omap3/sys_info.c b/cpu/arm_cortexa8/omap3/sys_info.c
index b385b91..2f04cd6 100644
--- a/cpu/arm_cortexa8/omap3/sys_info.c
+++ b/cpu/arm_cortexa8/omap3/sys_info.c
@@ -35,6 +35,12 @@ extern omap3_sysinfo sysinfo;
static gpmc_csx_t *gpmc_cs_base = (gpmc_csx_t *)GPMC_CONFIG_CS0_BASE;
static sdrc_t *sdrc_base = (sdrc_t *)OMAP34XX_SDRC_BASE;
static ctrl_t *ctrl_base = (ctrl_t *)OMAP34XX_CTRL_BASE;
+static char *rev_s[CPU_3XX_MAX_REV] = {
+ "1.0",
+ "2.0",
+ "2.1",
+ "3.0",
+ "3.1"};
/*****************************************************************
* dieid_num_r(void) - read and set die ID
@@ -76,18 +82,27 @@ u32 get_cpu_type(void)
u32 get_cpu_rev(void)
{
u32 cpuid = 0;
+ ctrl_id_t *id_base;
/*
* On ES1.0 the IDCODE register is not exposed on L4
- * so using CPU ID to differentiate
- * between ES2.0 and ES1.0.
+ * so using CPU ID to differentiate between ES1.0 and > ES1.0.
*/
__asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
if ((cpuid & 0xf) == 0x0)
- return CPU_3430_ES1;
- else
- return CPU_3430_ES2;
+ return CPU_3XX_ES10;
+ else {
+ /* Decode the IDs on > ES1.0 */
+ id_base = (ctrl_id_t *) OMAP34XX_ID_L4_IO_BASE;
+ cpuid = (readl(&id_base->idcode) >> CPU_3XX_ID_SHIFT) & 0xf;
+
+ /* Some early ES2.0 seem to report ID 0, fix this */
+ if(cpuid == 0)
+ cpuid = CPU_3XX_ES20;
+
+ return cpuid;
+ }
}
/****************************************************
@@ -130,23 +145,6 @@ u32 get_sdr_cs_offset(u32 cs)
return offset;
}
-/***********************************************************************
- * get_board_type() - get board type based on current production stats.
- * - NOTE-1-: 2 I2C EEPROMs will someday be populated with proper info.
- * when they are available we can get info from there. This should
- * be correct of all known boards up until today.
- * - NOTE-2- EEPROMs are populated but they are updated very slowly. To
- * avoid waiting on them we will use ES version of the chip to get info.
- * A later version of the FPGA migth solve their speed issue.
- ************************************************************************/
-u32 get_board_type(void)
-{
- if (get_cpu_rev() == CPU_3430_ES2)
- return sysinfo.board_type_v2;
- else
- return sysinfo.board_type_v1;
-}
-
/***************************************************************************
* get_gpmc0_base() - Return current address hardware will be
* fetching from. The below effectively gives what is correct, its a bit
@@ -185,61 +183,6 @@ u32 get_board_rev(void)
return 0x20;
}
-/*********************************************************************
- * display_board_info() - print banner with board info.
- *********************************************************************/
-void display_board_info(u32 btype)
-{
- char *cpu_s, *mem_s, *sec_s;
-
- switch (get_cpu_type()) {
- case OMAP3503:
- cpu_s = "3503";
- break;
- case OMAP3515:
- cpu_s = "3515";
- break;
- case OMAP3525:
- cpu_s = "3525";
- break;
- case OMAP3530:
- cpu_s = "3530";
- break;
- default:
- cpu_s = "35XX";
- break;
- }
-
- if (is_mem_sdr())
- mem_s = "mSDR";
- else
- mem_s = "LPDDR";
-
- switch (get_device_type()) {
- case TST_DEVICE:
- sec_s = "TST";
- break;
- case EMU_DEVICE:
- sec_s = "EMU";
- break;
- case HS_DEVICE:
- sec_s = "HS";
- break;
- case GP_DEVICE:
- sec_s = "GP";
- break;
- default:
- sec_s = "?";
- }
-
-
- printf("OMAP%s-%s rev %d, CPU-OPP2 L3-165MHz\n", cpu_s,
- sec_s, get_cpu_rev());
- printf("%s + %s/%s\n", sysinfo.board_string,
- mem_s, sysinfo.nand_string);
-
-}
-
/********************************************************
* get_base(); get upper addr of current execution
*******************************************************/
@@ -305,3 +248,53 @@ u32 get_device_type(void)
{
return ((readl(&ctrl_base->status) & (DEVICE_MASK)) >> 8);
}
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+/**
+ * Print CPU information
+ */
+int print_cpuinfo (void)
+{
+ char *cpu_s, *sec_s;
+
+ switch (get_cpu_type()) {
+ case OMAP3503:
+ cpu_s = "3503";
+ break;
+ case OMAP3515:
+ cpu_s = "3515";
+ break;
+ case OMAP3525:
+ cpu_s = "3525";
+ break;
+ case OMAP3530:
+ cpu_s = "3530";
+ break;
+ default:
+ cpu_s = "35XX";
+ break;
+ }
+
+ switch (get_device_type()) {
+ case TST_DEVICE:
+ sec_s = "TST";
+ break;
+ case EMU_DEVICE:
+ sec_s = "EMU";
+ break;
+ case HS_DEVICE:
+ sec_s = "HS";
+ break;
+ case GP_DEVICE:
+ sec_s = "GP";
+ break;
+ default:
+ sec_s = "?";
+ }
+
+ printf("OMAP%s-%s ES%s, CPU-OPP2 L3-165MHz\n",
+ cpu_s, sec_s, rev_s[get_cpu_rev()]);
+
+ return 0;
+}
+#endif /* CONFIG_DISPLAY_CPUINFO */
generated by cgit v1.1 at 2024-11-24 20:03:30 +0000