Commit fed029f3 authored by Albert ARIBAUD's avatar Albert ARIBAUD
Browse files

Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'

parents be08abc2 4fdebefa
......@@ -273,6 +273,7 @@ LIBS-y += disk/libdisk.o
LIBS-y += drivers/bios_emulator/libatibiosemu.o
LIBS-y += drivers/block/libblock.o
LIBS-$(CONFIG_BOOTCOUNT_LIMIT) += drivers/bootcount/libbootcount.o
LIBS-y += drivers/crypto/libcrypto.o
LIBS-y += drivers/dma/libdma.o
LIBS-y += drivers/fpga/libfpga.o
LIBS-y += drivers/gpio/libgpio.o
......
......@@ -27,6 +27,49 @@
#include <asm/arch/clk.h>
#include <asm/arch/periph.h>
/* *
* This structure is to store the src bit, div bit and prediv bit
* positions of the peripheral clocks of the src and div registers
*/
struct clk_bit_info {
int8_t src_bit;
int8_t div_bit;
int8_t prediv_bit;
};
/* src_bit div_bit prediv_bit */
static struct clk_bit_info clk_bit_info[PERIPH_ID_COUNT] = {
{0, 0, -1},
{4, 4, -1},
{8, 8, -1},
{12, 12, -1},
{0, 0, 8},
{4, 16, 24},
{8, 0, 8},
{12, 16, 24},
{-1, -1, -1},
{16, 0, 8},
{20, 16, 24},
{24, 0, 8},
{0, 0, 4},
{4, 12, 16},
{-1, -1, -1},
{-1, -1, -1},
{-1, 24, 0},
{-1, 24, 0},
{-1, 24, 0},
{-1, 24, 0},
{-1, 24, 0},
{-1, 24, 0},
{-1, 24, 0},
{-1, 24, 0},
{24, 0, -1},
{24, 0, -1},
{24, 0, -1},
{24, 0, -1},
{24, 0, -1},
};
/* Epll Clock division values to achive different frequency output */
static struct set_epll_con_val exynos5_epll_div[] = {
{ 192000000, 0, 48, 3, 1, 0 },
......@@ -201,6 +244,107 @@ static unsigned long exynos5_get_pll_clk(int pllreg)
return fout;
}
static unsigned long exynos5_get_periph_rate(int peripheral)
{
struct clk_bit_info *bit_info = &clk_bit_info[peripheral];
unsigned long sclk, sub_clk;
unsigned int src, div, sub_div;
struct exynos5_clock *clk =
(struct exynos5_clock *)samsung_get_base_clock();
switch (peripheral) {
case PERIPH_ID_UART0:
case PERIPH_ID_UART1:
case PERIPH_ID_UART2:
case PERIPH_ID_UART3:
src = readl(&clk->src_peric0);
div = readl(&clk->div_peric0);
break;
case PERIPH_ID_PWM0:
case PERIPH_ID_PWM1:
case PERIPH_ID_PWM2:
case PERIPH_ID_PWM3:
case PERIPH_ID_PWM4:
src = readl(&clk->src_peric0);
div = readl(&clk->div_peric3);
break;
case PERIPH_ID_SPI0:
case PERIPH_ID_SPI1:
src = readl(&clk->src_peric1);
div = readl(&clk->div_peric1);
break;
case PERIPH_ID_SPI2:
src = readl(&clk->src_peric1);
div = readl(&clk->div_peric2);
break;
case PERIPH_ID_SPI3:
case PERIPH_ID_SPI4:
src = readl(&clk->sclk_src_isp);
div = readl(&clk->sclk_div_isp);
break;
case PERIPH_ID_SDMMC0:
case PERIPH_ID_SDMMC1:
case PERIPH_ID_SDMMC2:
case PERIPH_ID_SDMMC3:
src = readl(&clk->src_fsys);
div = readl(&clk->div_fsys1);
break;
case PERIPH_ID_I2C0:
case PERIPH_ID_I2C1:
case PERIPH_ID_I2C2:
case PERIPH_ID_I2C3:
case PERIPH_ID_I2C4:
case PERIPH_ID_I2C5:
case PERIPH_ID_I2C6:
case PERIPH_ID_I2C7:
sclk = exynos5_get_pll_clk(MPLL);
sub_div = ((readl(&clk->div_top1) >> bit_info->div_bit)
& 0x7) + 1;
div = ((readl(&clk->div_top0) >> bit_info->prediv_bit)
& 0x7) + 1;
return (sclk / sub_div) / div;
default:
debug("%s: invalid peripheral %d", __func__, peripheral);
return -1;
};
src = (src >> bit_info->src_bit) & 0xf;
switch (src) {
case EXYNOS_SRC_MPLL:
sclk = exynos5_get_pll_clk(MPLL);
break;
case EXYNOS_SRC_EPLL:
sclk = exynos5_get_pll_clk(EPLL);
break;
case EXYNOS_SRC_VPLL:
sclk = exynos5_get_pll_clk(VPLL);
break;
default:
return 0;
}
/* Ratio clock division for this peripheral */
sub_div = (div >> bit_info->div_bit) & 0xf;
sub_clk = sclk / (sub_div + 1);
/* Pre-ratio clock division for SDMMC0 and 2 */
if (peripheral == PERIPH_ID_SDMMC0 || peripheral == PERIPH_ID_SDMMC2) {
div = (div >> bit_info->prediv_bit) & 0xff;
return sub_clk / (div + 1);
}
return sub_clk;
}
unsigned long clock_get_periph_rate(int peripheral)
{
if (cpu_is_exynos5())
return exynos5_get_periph_rate(peripheral);
else
return 0;
}
/* exynos4: return ARM clock frequency */
static unsigned long exynos4_get_arm_clk(void)
{
......@@ -324,27 +468,6 @@ static unsigned long exynos4x12_get_pwm_clk(void)
return pclk;
}
/* exynos5: return pwm clock frequency */
static unsigned long exynos5_get_pwm_clk(void)
{
struct exynos5_clock *clk =
(struct exynos5_clock *)samsung_get_base_clock();
unsigned long pclk, sclk;
unsigned int ratio;
/*
* CLK_DIV_PERIC3
* PWM_RATIO [3:0]
*/
ratio = readl(&clk->div_peric3);
ratio = ratio & 0xf;
sclk = get_pll_clk(MPLL);
pclk = sclk / (ratio + 1);
return pclk;
}
/* exynos4: return uart clock frequency */
static unsigned long exynos4_get_uart_clk(int dev_index)
{
......@@ -1210,7 +1333,7 @@ unsigned long get_i2c_clk(void)
unsigned long get_pwm_clk(void)
{
if (cpu_is_exynos5())
return exynos5_get_pwm_clk();
return clock_get_periph_rate(PERIPH_ID_PWM0);
else {
if (proid_is_exynos4412())
return exynos4x12_get_pwm_clk();
......
......@@ -23,6 +23,14 @@
#include <common.h>
#include <asm/io.h>
#include <asm/system.h>
enum l2_cache_params {
CACHE_TAG_RAM_SETUP = (1 << 9),
CACHE_DATA_RAM_SETUP = (1 << 5),
CACHE_TAG_RAM_LATENCY = (2 << 6),
CACHE_DATA_RAM_LATENCY = (2 << 0)
};
void reset_cpu(ulong addr)
{
......@@ -36,3 +44,31 @@ void enable_caches(void)
dcache_enable();
}
#endif
#ifndef CONFIG_SYS_L2CACHE_OFF
/*
* Set L2 cache parameters
*/
static void exynos5_set_l2cache_params(void)
{
unsigned int val = 0;
asm volatile("mrc p15, 1, %0, c9, c0, 2\n" : "=r"(val));
val |= CACHE_TAG_RAM_SETUP |
CACHE_DATA_RAM_SETUP |
CACHE_TAG_RAM_LATENCY |
CACHE_DATA_RAM_LATENCY;
asm volatile("mcr p15, 1, %0, c9, c0, 2\n" : : "r"(val));
}
/*
* Sets L2 cache related parameters before enabling data cache
*/
void v7_outer_cache_enable(void)
{
if (cpu_is_exynos5())
exynos5_set_l2cache_params();
}
#endif
......@@ -70,7 +70,7 @@ static unsigned long pwm_calc_tin(int pwm_id, unsigned long freq)
return tin_parent_rate / 16;
}
#define NS_IN_HZ (1000000000UL)
#define NS_IN_SEC 1000000000UL
int pwm_config(int pwm_id, int duty_ns, int period_ns)
{
......@@ -79,7 +79,7 @@ int pwm_config(int pwm_id, int duty_ns, int period_ns)
unsigned int offset;
unsigned long tin_rate;
unsigned long tin_ns;
unsigned long period;
unsigned long frequency;
unsigned long tcon;
unsigned long tcnt;
unsigned long tcmp;
......@@ -89,34 +89,24 @@ int pwm_config(int pwm_id, int duty_ns, int period_ns)
* fact that anything faster than 1GHz is easily representable
* by 32bits.
*/
if (period_ns > NS_IN_HZ || duty_ns > NS_IN_HZ)
if (period_ns > NS_IN_SEC || duty_ns > NS_IN_SEC || period_ns == 0)
return -ERANGE;
if (duty_ns > period_ns)
return -EINVAL;
period = NS_IN_HZ / period_ns;
frequency = NS_IN_SEC / period_ns;
/* Check to see if we are changing the clock rate of the PWM */
tin_rate = pwm_calc_tin(pwm_id, period);
tin_rate = pwm_calc_tin(pwm_id, frequency);
tin_ns = NS_IN_HZ / tin_rate;
tin_ns = NS_IN_SEC / tin_rate;
tcnt = period_ns / tin_ns;
/* Note, counters count down */
tcmp = duty_ns / tin_ns;
tcmp = tcnt - tcmp;
/*
* the pwm hw only checks the compare register after a decrement,
* so the pin never toggles if tcmp = tcnt
*/
if (tcmp == tcnt)
tcmp--;
if (tcmp < 0)
tcmp = 0;
/* Update the PWM register block. */
offset = pwm_id * 3;
if (pwm_id < 4) {
......@@ -143,7 +133,7 @@ int pwm_init(int pwm_id, int div, int invert)
u32 val;
const struct s5p_timer *pwm =
(struct s5p_timer *)samsung_get_base_timer();
unsigned long timer_rate_hz;
unsigned long ticks_per_period;
unsigned int offset, prescaler;
/*
......@@ -167,14 +157,24 @@ int pwm_init(int pwm_id, int div, int invert)
val |= (div & 0xf) << MUX_DIV_SHIFT(pwm_id);
writel(val, &pwm->tcfg1);
timer_rate_hz = get_pwm_clk() / ((prescaler + 1) *
(div + 1));
if (pwm_id == 4) {
/*
* TODO(sjg): Use this as a countdown timer for now. We count
* down from the maximum value to 0, then reset.
*/
ticks_per_period = -1UL;
} else {
const unsigned long pwm_hz = 1000;
unsigned long timer_rate_hz = get_pwm_clk() /
((prescaler + 1) * (1 << div));
timer_rate_hz = timer_rate_hz / CONFIG_SYS_HZ;
ticks_per_period = timer_rate_hz / pwm_hz;
}
/* set count value */
offset = pwm_id * 3;
writel(timer_rate_hz, &pwm->tcntb0 + offset);
writel(ticks_per_period, &pwm->tcntb0 + offset);
val = readl(&pwm->tcon) & ~(0xf << TCON_OFFSET(pwm_id));
if (invert && (pwm_id < 4))
......
......@@ -39,13 +39,33 @@ static inline struct s5p_timer *s5p_get_base_timer(void)
return (struct s5p_timer *)samsung_get_base_timer();
}
/**
* Read the countdown timer.
*
* This operates at 1MHz and counts downwards. It will wrap about every
* hour (2^32 microseconds).
*
* @return current value of timer
*/
static unsigned long timer_get_us_down(void)
{
struct s5p_timer *const timer = s5p_get_base_timer();
return readl(&timer->tcnto4);
}
int timer_init(void)
{
/* PWM Timer 4 */
pwm_init(4, MUX_DIV_2, 0);
pwm_config(4, 0, 0);
pwm_init(4, MUX_DIV_4, 0);
pwm_config(4, 100000, 100000);
pwm_enable(4);
/* Use this as the current monotonic time in us */
gd->arch.timer_reset_value = 0;
/* Use this as the last timer value we saw */
gd->arch.lastinc = timer_get_us_down();
reset_timer_masked();
return 0;
......@@ -56,81 +76,52 @@ int timer_init(void)
*/
unsigned long get_timer(unsigned long base)
{
return get_timer_masked() - base;
}
ulong now = timer_get_us_down();
/*
* Increment the time by the amount elapsed since the last read.
* The timer may have wrapped around, but it makes no difference to
* our arithmetic here.
*/
gd->arch.timer_reset_value += gd->arch.lastinc - now;
gd->arch.lastinc = now;
/* delay x useconds */
void __udelay(unsigned long usec)
{
struct s5p_timer *const timer = s5p_get_base_timer();
unsigned long tmo, tmp, count_value;
count_value = readl(&timer->tcntb4);
if (usec >= 1000) {
/*
* if "big" number, spread normalization
* to seconds
* 1. start to normalize for usec to ticks per sec
* 2. find number of "ticks" to wait to achieve target
* 3. finish normalize.
*/
tmo = usec / 1000;
tmo *= (CONFIG_SYS_HZ * count_value);
tmo /= 1000;
} else {
/* else small number, don't kill it prior to HZ multiply */
tmo = usec * CONFIG_SYS_HZ * count_value;
tmo /= (1000 * 1000);
}
/* get current timestamp */
tmp = get_current_tick();
/* if setting this fordward will roll time stamp */
/* reset "advancing" timestamp to 0, set lastinc value */
/* else, set advancing stamp wake up time */
if ((tmo + tmp + 1) < tmp)
reset_timer_masked();
else
tmo += tmp;
/* loop till event */
while (get_current_tick() < tmo)
; /* nop */
/* Divide by 1000 to convert from us to ms */
return gd->arch.timer_reset_value / 1000 - base;
}
void reset_timer_masked(void)
unsigned long timer_get_us(void)
{
struct s5p_timer *const timer = s5p_get_base_timer();
static unsigned long base_time_us;
/* reset time */
gd->arch.lastinc = readl(&timer->tcnto4);
gd->arch.tbl = 0;
struct s5p_timer *const timer =
(struct s5p_timer *)samsung_get_base_timer();
unsigned long now_downward_us = readl(&timer->tcnto4);
if (!base_time_us)
base_time_us = now_downward_us;
/* Note that this timer counts downward. */
return base_time_us - now_downward_us;
}
unsigned long get_timer_masked(void)
/* delay x useconds */
void __udelay(unsigned long usec)
{
struct s5p_timer *const timer = s5p_get_base_timer();
unsigned long count_value = readl(&timer->tcntb4);
unsigned long count_value;
return get_current_tick() / count_value;
count_value = timer_get_us_down();
while ((int)(count_value - timer_get_us_down()) < (int)usec)
;
}
unsigned long get_current_tick(void)
void reset_timer_masked(void)
{
struct s5p_timer *const timer = s5p_get_base_timer();
unsigned long now = readl(&timer->tcnto4);
unsigned long count_value = readl(&timer->tcntb4);
if (gd->arch.lastinc >= now)
gd->arch.tbl += gd->arch.lastinc - now;
else
gd->arch.tbl += gd->arch.lastinc + count_value - now;
gd->arch.lastinc = now;
return gd->arch.tbl;
/* reset time */
gd->arch.lastinc = readl(&timer->tcnto4);
gd->arch.tbl = 0;
}
/*
......
......@@ -156,4 +156,17 @@
reg = <0x10060000 0x10000>;
};
fimd@14400000 {
compatible = "samsung,exynos-fimd";
reg = <0x14400000 0x10000>;
#address-cells = <1>;
#size-cells = <1>;
};
dp@145b0000 {
compatible = "samsung,exynos5-dp";
reg = <0x145b0000 0x1000>;
#address-cells = <1>;
#size-cells = <1>;
};
};
......@@ -29,6 +29,12 @@
#define VPLL 4
#define BPLL 5
enum pll_src_bit {
EXYNOS_SRC_MPLL = 6,
EXYNOS_SRC_EPLL,
EXYNOS_SRC_VPLL,
};
unsigned long get_pll_clk(int pllreg);
unsigned long get_arm_clk(void);
unsigned long get_i2c_clk(void);
......@@ -44,4 +50,13 @@ int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq);
int set_epll_clk(unsigned long rate);
int set_spi_clk(int periph_id, unsigned int rate);
/**
* get the clk frequency of the required peripheral
*
* @param peripheral Peripheral id
*
* @return frequency of the peripheral clk
*/
unsigned long clock_get_periph_rate(int peripheral);
#endif
......@@ -62,6 +62,7 @@
#define EXYNOS4_GPIO_PART4_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4_DP_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4_SPI_ISP_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4_ACE_SFR_BASE DEVICE_NOT_AVAILABLE
/* EXYNOS4X12 */
#define EXYNOS4X12_GPIO_PART3_BASE 0x03860000
......@@ -92,9 +93,10 @@
#define EXYNOS4X12_ADC_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_DP_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_MODEM_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_I2S_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_SPI_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_SPI_ISP_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_I2S_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_SPI_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_SPI_ISP_BASE DEVICE_NOT_AVAILABLE
#define EXYNOS4X12_ACE_SFR_BASE DEVICE_NOT_AVAILABLE
/* EXYNOS5 Common*/
#define EXYNOS5_I2C_SPACING 0x10000
......@@ -106,6 +108,7 @@
#define EXYNOS5_SWRESET 0x10040400
#define EXYNOS5_SYSREG_BASE 0x10050000
#define EXYNOS5_WATCHDOG_BASE 0x101D0000
#define EXYNOS5_ACE_SFR_BASE 0x10830000
#define EXYNOS5_DMC_PHY0_BASE 0x10C00000
#define EXYNOS5_DMC_PHY1_BASE 0x10C10000
#define EXYNOS5_GPIO_PART3_BASE 0x10D10000
......@@ -205,6 +208,7 @@ static inline unsigned int samsung_get_base_##device(void) \
SAMSUNG_BASE(adc, ADC_BASE)
SAMSUNG_BASE(clock, CLOCK_BASE)
SAMSUNG_BASE(ace_sfr, ACE_SFR_BASE)
SAMSUNG_BASE(dp, DP_BASE)
SAMSUNG_BASE(sysreg, SYSREG_BASE)
SAMSUNG_BASE(fimd, FIMD_BASE)
......
......@@ -199,7 +199,6 @@ enum {
struct exynos_dp_platform_data {
struct edp_device_info *edp_dev_info;
void (*phy_enable)(unsigned int);
};
#ifdef CONFIG_EXYNOS_DP
......
......@@ -61,6 +61,11 @@ enum periph_id {
PERIPH_ID_SPI3,
PERIPH_ID_SPI4,
PERIPH_ID_SDMMC4,
PERIPH_ID_PWM0,
PERIPH_ID_PWM1,
PERIPH_ID_PWM2,
PERIPH_ID_PWM3,
PERIPH_ID_PWM4,
PERIPH_ID_COUNT,
PERIPH_ID_NONE = -1,
......
......@@ -79,4 +79,44 @@
samsung,slope = <274761730>;
samsung,dc-value = <25>;
};
fimd@14400000 {
samsung,vl-freq = <60>;
samsung,vl-col = <2560>;
samsung,vl-row = <1600>;
samsung,vl-width = <2560>;
samsung,vl-height = <1600>;
samsung,vl-clkp;
samsung,vl-dp;
samsung,vl-bpix = <4>;