These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 1 insertions, 183 deletions

diff --git a/kernel/arch/arm/mach-pxa/pxa25x.c b/kernel/arch/arm/mach-pxa/pxa25x.c
index 66e4a2b63..1dc85ffc3 100644
--- a/kernel/arch/arm/mach-pxa/pxa25x.c
+++ b/kernel/arch/arm/mach-pxa/pxa25x.c
@@ -38,187 +38,11 @@
 
 #include "generic.h"
 #include "devices.h"
-#include "clock.h"
 
 /*
  * Various clock factors driven by the CCCR register.
  */
 
-/* Crystal Frequency to Memory Frequency Multiplier (L) */
-static unsigned char L_clk_mult[32] = { 0, 27, 32, 36, 40, 45, 0, };
-
-/* Memory Frequency to Run Mode Frequency Multiplier (M) */
-static unsigned char M_clk_mult[4] = { 0, 1, 2, 4 };
-
-/* Run Mode Frequency to Turbo Mode Frequency Multiplier (N) */
-/* Note: we store the value N * 2 here. */
-static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 };
-
-/* Crystal clock */
-#define BASE_CLK	3686400
-
-/*
- * Get the clock frequency as reflected by CCCR and the turbo flag.
- * We assume these values have been applied via a fcs.
- * If info is not 0 we also display the current settings.
- */
-unsigned int pxa25x_get_clk_frequency_khz(int info)
-{
-	unsigned long cccr, turbo;
-	unsigned int l, L, m, M, n2, N;
-
-	cccr = CCCR;
-	asm( "mrc\tp14, 0, %0, c6, c0, 0" : "=r" (turbo) );
-
-	l  =  L_clk_mult[(cccr >> 0) & 0x1f];
-	m  =  M_clk_mult[(cccr >> 5) & 0x03];
-	n2 = N2_clk_mult[(cccr >> 7) & 0x07];
-
-	L = l * BASE_CLK;
-	M = m * L;
-	N = n2 * M / 2;
-
-	if(info)
-	{
-		L += 5000;
-		printk( KERN_INFO "Memory clock: %d.%02dMHz (*%d)\n",
-			L / 1000000, (L % 1000000) / 10000, l );
-		M += 5000;
-		printk( KERN_INFO "Run Mode clock: %d.%02dMHz (*%d)\n",
-			M / 1000000, (M % 1000000) / 10000, m );
-		N += 5000;
-		printk( KERN_INFO "Turbo Mode clock: %d.%02dMHz (*%d.%d, %sactive)\n",
-			N / 1000000, (N % 1000000) / 10000, n2 / 2, (n2 % 2) * 5,
-			(turbo & 1) ? "" : "in" );
-	}
-
-	return (turbo & 1) ? (N/1000) : (M/1000);
-}
-
-static unsigned long clk_pxa25x_mem_getrate(struct clk *clk)
-{
-	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK;
-}
-
-static const struct clkops clk_pxa25x_mem_ops = {
-	.enable		= clk_dummy_enable,
-	.disable	= clk_dummy_disable,
-	.getrate	= clk_pxa25x_mem_getrate,
-};
-
-static const struct clkops clk_pxa25x_lcd_ops = {
-	.enable		= clk_pxa2xx_cken_enable,
-	.disable	= clk_pxa2xx_cken_disable,
-	.getrate	= clk_pxa25x_mem_getrate,
-};
-
-static unsigned long gpio12_config_32k[] = {
-	GPIO12_32KHz,
-};
-
-static unsigned long gpio12_config_gpio[] = {
-	GPIO12_GPIO,
-};
-
-static void clk_gpio12_enable(struct clk *clk)
-{
-	pxa2xx_mfp_config(gpio12_config_32k, 1);
-}
-
-static void clk_gpio12_disable(struct clk *clk)
-{
-	pxa2xx_mfp_config(gpio12_config_gpio, 1);
-}
-
-static const struct clkops clk_pxa25x_gpio12_ops = {
-	.enable         = clk_gpio12_enable,
-	.disable        = clk_gpio12_disable,
-};
-
-static unsigned long gpio11_config_3m6[] = {
-	GPIO11_3_6MHz,
-};
-
-static unsigned long gpio11_config_gpio[] = {
-	GPIO11_GPIO,
-};
-
-static void clk_gpio11_enable(struct clk *clk)
-{
-	pxa2xx_mfp_config(gpio11_config_3m6, 1);
-}
-
-static void clk_gpio11_disable(struct clk *clk)
-{
-	pxa2xx_mfp_config(gpio11_config_gpio, 1);
-}
-
-static const struct clkops clk_pxa25x_gpio11_ops = {
-	.enable         = clk_gpio11_enable,
-	.disable        = clk_gpio11_disable,
-};
-
-/*
- * 3.6864MHz -> OST, GPIO, SSP, PWM, PLLs (95.842MHz, 147.456MHz)
- * 95.842MHz -> MMC 19.169MHz, I2C 31.949MHz, FICP 47.923MHz, USB 47.923MHz
- * 147.456MHz -> UART 14.7456MHz, AC97 12.288MHz, I2S 5.672MHz (allegedly)
- */
-
-/*
- * PXA 2xx clock declarations.
- */
-static DEFINE_PXA2_CKEN(pxa25x_hwuart, HWUART, 14745600, 1);
-static DEFINE_PXA2_CKEN(pxa25x_ffuart, FFUART, 14745600, 1);
-static DEFINE_PXA2_CKEN(pxa25x_btuart, BTUART, 14745600, 1);
-static DEFINE_PXA2_CKEN(pxa25x_stuart, STUART, 14745600, 1);
-static DEFINE_PXA2_CKEN(pxa25x_usb, USB, 47923000, 5);
-static DEFINE_PXA2_CKEN(pxa25x_mmc, MMC, 19169000, 0);
-static DEFINE_PXA2_CKEN(pxa25x_i2c, I2C, 31949000, 0);
-static DEFINE_PXA2_CKEN(pxa25x_ssp, SSP, 3686400, 0);
-static DEFINE_PXA2_CKEN(pxa25x_nssp, NSSP, 3686400, 0);
-static DEFINE_PXA2_CKEN(pxa25x_assp, ASSP, 3686400, 0);
-static DEFINE_PXA2_CKEN(pxa25x_pwm0, PWM0, 3686400, 0);
-static DEFINE_PXA2_CKEN(pxa25x_pwm1, PWM1, 3686400, 0);
-static DEFINE_PXA2_CKEN(pxa25x_ac97, AC97, 24576000, 0);
-static DEFINE_PXA2_CKEN(pxa25x_i2s, I2S, 14745600, 0);
-static DEFINE_PXA2_CKEN(pxa25x_ficp, FICP, 47923000, 0);
-
-static DEFINE_CK(pxa25x_lcd, LCD, &clk_pxa25x_lcd_ops);
-static DEFINE_CLK(pxa25x_gpio11, &clk_pxa25x_gpio11_ops, 3686400, 0);
-static DEFINE_CLK(pxa25x_gpio12, &clk_pxa25x_gpio12_ops, 32768, 0);
-static DEFINE_CLK(pxa25x_mem, &clk_pxa25x_mem_ops, 0, 0);
-
-static struct clk_lookup pxa25x_clkregs[] = {
-	INIT_CLKREG(&clk_pxa25x_lcd, "pxa2xx-fb", NULL),
-	INIT_CLKREG(&clk_pxa25x_ffuart, "pxa2xx-uart.0", NULL),
-	INIT_CLKREG(&clk_pxa25x_btuart, "pxa2xx-uart.1", NULL),
-	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-uart.2", NULL),
-	INIT_CLKREG(&clk_pxa25x_usb, "pxa25x-udc", NULL),
-	INIT_CLKREG(&clk_pxa25x_mmc, "pxa2xx-mci.0", NULL),
-	INIT_CLKREG(&clk_pxa25x_i2c, "pxa2xx-i2c.0", NULL),
-	INIT_CLKREG(&clk_pxa25x_ssp, "pxa25x-ssp.0", NULL),
-	INIT_CLKREG(&clk_pxa25x_nssp, "pxa25x-nssp.1", NULL),
-	INIT_CLKREG(&clk_pxa25x_assp, "pxa25x-nssp.2", NULL),
-	INIT_CLKREG(&clk_pxa25x_pwm0, "pxa25x-pwm.0", NULL),
-	INIT_CLKREG(&clk_pxa25x_pwm1, "pxa25x-pwm.1", NULL),
-	INIT_CLKREG(&clk_pxa25x_i2s, "pxa2xx-i2s", NULL),
-	INIT_CLKREG(&clk_pxa25x_stuart, "pxa2xx-ir", "UARTCLK"),
-	INIT_CLKREG(&clk_pxa25x_ficp, "pxa2xx-ir", "FICPCLK"),
-	INIT_CLKREG(&clk_pxa25x_ac97, NULL, "AC97CLK"),
-	INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),
-	INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
-	INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),
-#ifdef CONFIG_CPU_PXA26x
-	INIT_CLKREG(&clk_dummy, "pxa26x-gpio", NULL),
-#else
-	INIT_CLKREG(&clk_dummy, "pxa25x-gpio", NULL),
-#endif
-	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
-};
-
-static struct clk_lookup pxa25x_hwuart_clkreg =
-	INIT_CLKREG(&clk_pxa25x_hwuart, "pxa2xx-uart.3", NULL);
-
 #ifdef CONFIG_PM
 
 #define SAVE(x)		sleep_save[SLEEP_SAVE_##x] = x
@@ -374,8 +198,6 @@ static int __init pxa25x_init(void)
 
 		reset_status = RCSR;
 
-		clkdev_add_table(pxa25x_clkregs, ARRAY_SIZE(pxa25x_clkregs));
-
 		if ((ret = pxa_init_dma(IRQ_DMA, 16)))
 			return ret;
 
@@ -383,8 +205,8 @@ static int __init pxa25x_init(void)
 
 		register_syscore_ops(&pxa_irq_syscore_ops);
 		register_syscore_ops(&pxa2xx_mfp_syscore_ops);
-		register_syscore_ops(&pxa2xx_clock_syscore_ops);
 
+		pxa2xx_set_dmac_info(16);
 		pxa_register_device(&pxa25x_device_gpio, &pxa25x_gpio_info);
 		ret = platform_add_devices(pxa25x_devices,
 					   ARRAY_SIZE(pxa25x_devices));
@@ -392,10 +214,6 @@ static int __init pxa25x_init(void)
 			return ret;
 	}
 
-	/* Only add HWUART for PXA255/26x; PXA210/250 do not have it. */
-	if (cpu_is_pxa255())
-		clkdev_add(&pxa25x_hwuart_clkreg);
-
 	return ret;
 }