u-boot/arch/powerpc/cpu/mpc85xx/spl_minimal.c
York Sun 0b66513b27 Driver/IFC: Move Freescale IFC driver to a common driver
Freescale IFC controller has been used for mpc8xxx. It will be used
for ARM-based SoC as well. This patch moves the driver to driver/misc
and fix the header file includes.

Signed-off-by: York Sun <yorksun@freescale.com>
2013-11-25 11:43:47 -08:00

43 lines
947 B
C

/*
* Copyright 2009 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/processor.h>
#include <asm/global_data.h>
#include <fsl_ifc.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
void cpu_init_f(void)
{
#ifdef CONFIG_SYS_INIT_L2_ADDR
ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
out_be32(&l2cache->l2srbar0, CONFIG_SYS_INIT_L2_ADDR);
/* set MBECCDIS=1, SBECCDIS=1 */
out_be32(&l2cache->l2errdis,
(MPC85xx_L2ERRDIS_MBECC | MPC85xx_L2ERRDIS_SBECC));
/* set L2E=1 & L2SRAM=001 */
out_be32(&l2cache->l2ctl,
(MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2SRAM_ENTIRE));
#endif
}
#ifndef CONFIG_SYS_FSL_TBCLK_DIV
#define CONFIG_SYS_FSL_TBCLK_DIV 8
#endif
void udelay(unsigned long usec)
{
u32 ticks_per_usec = gd->bus_clk / (CONFIG_SYS_FSL_TBCLK_DIV * 1000000);
u32 ticks = ticks_per_usec * usec;
u32 s = mfspr(SPRN_TBRL);
while ((mfspr(SPRN_TBRL) - s) < ticks);
}