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Commit b70c4207 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files
parents 597b97ca 52f3a41e
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+0 −1
Original line number Diff line number Diff line
@@ -48,7 +48,6 @@ CONFIG_MACH_SX1=y
CONFIG_MACH_NOKIA770=y
CONFIG_MACH_AMS_DELTA=y
CONFIG_MACH_OMAP_GENERIC=y
CONFIG_OMAP_CLOCKS_SET_BY_BOOTLOADER=y
CONFIG_OMAP_ARM_216MHZ=y
CONFIG_OMAP_ARM_195MHZ=y
CONFIG_OMAP_ARM_192MHZ=y
+0 −8
Original line number Diff line number Diff line
@@ -171,14 +171,6 @@ config MACH_OMAP_GENERIC
comment "OMAP CPU Speed"
	depends on ARCH_OMAP1

config OMAP_CLOCKS_SET_BY_BOOTLOADER
	bool "OMAP clocks set by bootloader"
	depends on ARCH_OMAP1
	help
	  Enable this option to prevent the kernel from overriding the clock
	  frequencies programmed by bootloader for MPU, DSP, MMUs, TC,
	  internal LCD controller and MPU peripherals.

config OMAP_ARM_216MHZ
	bool "OMAP ARM 216 MHz CPU (1710 only)"
        depends on ARCH_OMAP1 && ARCH_OMAP16XX
+7 −3
Original line number Diff line number Diff line
@@ -302,8 +302,6 @@ static void __init ams_delta_init(void)
	omap_cfg_reg(J19_1610_CAM_D6);
	omap_cfg_reg(J18_1610_CAM_D7);

	iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));

	omap_board_config = ams_delta_config;
	omap_board_config_size = ARRAY_SIZE(ams_delta_config);
	omap_serial_init();
@@ -373,10 +371,16 @@ static int __init ams_delta_modem_init(void)
}
arch_initcall(ams_delta_modem_init);

static void __init ams_delta_map_io(void)
{
	omap15xx_map_io();
	iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
}

MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
	/* Maintainer: Jonathan McDowell <noodles@earth.li> */
	.atag_offset	= 0x100,
	.map_io		= omap15xx_map_io,
	.map_io		= ams_delta_map_io,
	.init_early	= omap1_init_early,
	.reserve	= omap_reserve,
	.init_irq	= omap1_init_irq,
+2 −1
Original line number Diff line number Diff line
@@ -17,7 +17,8 @@

#include <plat/clock.h>

extern int __init omap1_clk_init(void);
int omap1_clk_init(void);
void omap1_clk_late_init(void);
extern int omap1_clk_enable(struct clk *clk);
extern void omap1_clk_disable(struct clk *clk);
extern long omap1_clk_round_rate(struct clk *clk, unsigned long rate);
+34 −19
Original line number Diff line number Diff line
@@ -767,6 +767,15 @@ static struct clk_functions omap1_clk_functions = {
	.clk_disable_unused	= omap1_clk_disable_unused,
};

static void __init omap1_show_rates(void)
{
	pr_notice("Clocking rate (xtal/DPLL1/MPU): "
			"%ld.%01ld/%ld.%01ld/%ld.%01ld MHz\n",
		ck_ref.rate / 1000000, (ck_ref.rate / 100000) % 10,
		ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10,
		arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);
}

int __init omap1_clk_init(void)
{
	struct omap_clk *c;
@@ -835,9 +844,12 @@ int __init omap1_clk_init(void)
	/* We want to be in syncronous scalable mode */
	omap_writew(0x1000, ARM_SYSST);

#ifdef CONFIG_OMAP_CLOCKS_SET_BY_BOOTLOADER
	/* Use values set by bootloader. Determine PLL rate and recalculate
	 * dependent clocks as if kernel had changed PLL or divisors.

	/*
	 * Initially use the values set by bootloader. Determine PLL rate and
	 * recalculate dependent clocks as if kernel had changed PLL or
	 * divisors. See also omap1_clk_late_init() that can reprogram dpll1
	 * after the SRAM is initialized.
	 */
	{
		unsigned pll_ctl_val = omap_readw(DPLL_CTL);
@@ -862,25 +874,10 @@ int __init omap1_clk_init(void)
			}
		}
	}
#else
	/* Find the highest supported frequency and enable it */
	if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) {
		printk(KERN_ERR "System frequencies not set. Check your config.\n");
		/* Guess sane values (60MHz) */
		omap_writew(0x2290, DPLL_CTL);
		omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL);
		ck_dpll1.rate = 60000000;
	}
#endif
	propagate_rate(&ck_dpll1);
	/* Cache rates for clocks connected to ck_ref (not dpll1) */
	propagate_rate(&ck_ref);
	printk(KERN_INFO "Clocking rate (xtal/DPLL1/MPU): "
		"%ld.%01ld/%ld.%01ld/%ld.%01ld MHz\n",
	       ck_ref.rate / 1000000, (ck_ref.rate / 100000) % 10,
	       ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10,
	       arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);

	omap1_show_rates();
	if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
		/* Select slicer output as OMAP input clock */
		omap_writew(omap_readw(OMAP7XX_PCC_UPLD_CTRL) & ~0x1,
@@ -925,3 +922,21 @@ int __init omap1_clk_init(void)

	return 0;
}

#define OMAP1_DPLL1_SANE_VALUE	60000000

void __init omap1_clk_late_init(void)
{
	if (ck_dpll1.rate >= OMAP1_DPLL1_SANE_VALUE)
		return;

	/* Find the highest supported frequency and enable it */
	if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) {
		pr_err("System frequencies not set, using default. Check your config.\n");
		omap_writew(0x2290, DPLL_CTL);
		omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL);
		ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE;
	}
	propagate_rate(&ck_dpll1);
	omap1_show_rates();
}
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