mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-03 01:50:25 +00:00
fbb9ecf749
Some SOCs have discontiguously-numbered cores, and so we can't determine the valid core numbers via the FRR register any more. We define CPU_TYPE_ENTRY_MASK to specify a discontiguous core mask, and helper functions to process the mask and enumerate over the set of valid cores. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
325 lines
9.3 KiB
C
325 lines
9.3 KiB
C
/*
|
|
* Copyright 2004, 2007-2011 Freescale Semiconductor, Inc.
|
|
*
|
|
* (C) Copyright 2003 Motorola Inc.
|
|
* Xianghua Xiao, (X.Xiao@motorola.com)
|
|
*
|
|
* (C) Copyright 2000
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <ppc_asm.tmpl>
|
|
#include <linux/compiler.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/io.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/* --------------------------------------------------------------- */
|
|
|
|
void get_sys_info (sys_info_t * sysInfo)
|
|
{
|
|
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
|
|
#ifdef CONFIG_FSL_CORENET
|
|
volatile ccsr_clk_t *clk = (void *)(CONFIG_SYS_FSL_CORENET_CLK_ADDR);
|
|
unsigned int cpu;
|
|
|
|
const u8 core_cplx_PLL[16] = {
|
|
[ 0] = 0, /* CC1 PPL / 1 */
|
|
[ 1] = 0, /* CC1 PPL / 2 */
|
|
[ 2] = 0, /* CC1 PPL / 4 */
|
|
[ 4] = 1, /* CC2 PPL / 1 */
|
|
[ 5] = 1, /* CC2 PPL / 2 */
|
|
[ 6] = 1, /* CC2 PPL / 4 */
|
|
[ 8] = 2, /* CC3 PPL / 1 */
|
|
[ 9] = 2, /* CC3 PPL / 2 */
|
|
[10] = 2, /* CC3 PPL / 4 */
|
|
[12] = 3, /* CC4 PPL / 1 */
|
|
[13] = 3, /* CC4 PPL / 2 */
|
|
[14] = 3, /* CC4 PPL / 4 */
|
|
};
|
|
|
|
const u8 core_cplx_PLL_div[16] = {
|
|
[ 0] = 1, /* CC1 PPL / 1 */
|
|
[ 1] = 2, /* CC1 PPL / 2 */
|
|
[ 2] = 4, /* CC1 PPL / 4 */
|
|
[ 4] = 1, /* CC2 PPL / 1 */
|
|
[ 5] = 2, /* CC2 PPL / 2 */
|
|
[ 6] = 4, /* CC2 PPL / 4 */
|
|
[ 8] = 1, /* CC3 PPL / 1 */
|
|
[ 9] = 2, /* CC3 PPL / 2 */
|
|
[10] = 4, /* CC3 PPL / 4 */
|
|
[12] = 1, /* CC4 PPL / 1 */
|
|
[13] = 2, /* CC4 PPL / 2 */
|
|
[14] = 4, /* CC4 PPL / 4 */
|
|
};
|
|
uint lcrr_div, i, freqCC_PLL[4], rcw_tmp;
|
|
uint ratio[4];
|
|
unsigned long sysclk = CONFIG_SYS_CLK_FREQ;
|
|
uint mem_pll_rat;
|
|
|
|
sysInfo->freqSystemBus = sysclk;
|
|
sysInfo->freqDDRBus = sysclk;
|
|
|
|
sysInfo->freqSystemBus *= (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
|
|
mem_pll_rat = (in_be32(&gur->rcwsr[0]) >> 17) & 0x1f;
|
|
if (mem_pll_rat > 2)
|
|
sysInfo->freqDDRBus *= mem_pll_rat;
|
|
else
|
|
sysInfo->freqDDRBus = sysInfo->freqSystemBus * mem_pll_rat;
|
|
|
|
ratio[0] = (in_be32(&clk->pllc1gsr) >> 1) & 0x3f;
|
|
ratio[1] = (in_be32(&clk->pllc2gsr) >> 1) & 0x3f;
|
|
ratio[2] = (in_be32(&clk->pllc3gsr) >> 1) & 0x3f;
|
|
ratio[3] = (in_be32(&clk->pllc4gsr) >> 1) & 0x3f;
|
|
for (i = 0; i < 4; i++) {
|
|
if (ratio[i] > 4)
|
|
freqCC_PLL[i] = sysclk * ratio[i];
|
|
else
|
|
freqCC_PLL[i] = sysInfo->freqSystemBus * ratio[i];
|
|
}
|
|
rcw_tmp = in_be32(&gur->rcwsr[3]);
|
|
for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) {
|
|
u32 c_pll_sel = (in_be32(&clk->clkc0csr + cpu*8) >> 27) & 0xf;
|
|
u32 cplx_pll = core_cplx_PLL[c_pll_sel];
|
|
|
|
sysInfo->freqProcessor[cpu] =
|
|
freqCC_PLL[cplx_pll] / core_cplx_PLL_div[c_pll_sel];
|
|
}
|
|
|
|
#define PME_CLK_SEL 0x80000000
|
|
#define FM1_CLK_SEL 0x40000000
|
|
#define FM2_CLK_SEL 0x20000000
|
|
#define HWA_ASYNC_DIV 0x04000000
|
|
#if (CONFIG_SYS_FSL_NUM_CC_PLLS == 2)
|
|
#define HWA_CC_PLL 1
|
|
#elif (CONFIG_SYS_FSL_NUM_CC_PLLS == 4)
|
|
#define HWA_CC_PLL 2
|
|
#else
|
|
#error CONFIG_SYS_FSL_NUM_CC_PLLS not set or unknown case
|
|
#endif
|
|
rcw_tmp = in_be32(&gur->rcwsr[7]);
|
|
|
|
#ifdef CONFIG_SYS_DPAA_PME
|
|
if (rcw_tmp & PME_CLK_SEL) {
|
|
if (rcw_tmp & HWA_ASYNC_DIV)
|
|
sysInfo->freqPME = freqCC_PLL[HWA_CC_PLL] / 4;
|
|
else
|
|
sysInfo->freqPME = freqCC_PLL[HWA_CC_PLL] / 2;
|
|
} else {
|
|
sysInfo->freqPME = sysInfo->freqSystemBus / 2;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_DPAA_FMAN
|
|
if (rcw_tmp & FM1_CLK_SEL) {
|
|
if (rcw_tmp & HWA_ASYNC_DIV)
|
|
sysInfo->freqFMan[0] = freqCC_PLL[HWA_CC_PLL] / 4;
|
|
else
|
|
sysInfo->freqFMan[0] = freqCC_PLL[HWA_CC_PLL] / 2;
|
|
} else {
|
|
sysInfo->freqFMan[0] = sysInfo->freqSystemBus / 2;
|
|
}
|
|
#if (CONFIG_SYS_NUM_FMAN) == 2
|
|
if (rcw_tmp & FM2_CLK_SEL) {
|
|
if (rcw_tmp & HWA_ASYNC_DIV)
|
|
sysInfo->freqFMan[1] = freqCC_PLL[HWA_CC_PLL] / 4;
|
|
else
|
|
sysInfo->freqFMan[1] = freqCC_PLL[HWA_CC_PLL] / 2;
|
|
} else {
|
|
sysInfo->freqFMan[1] = sysInfo->freqSystemBus / 2;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#else
|
|
uint plat_ratio,e500_ratio,half_freqSystemBus;
|
|
#if defined(CONFIG_FSL_LBC)
|
|
uint lcrr_div;
|
|
#endif
|
|
int i;
|
|
#ifdef CONFIG_QE
|
|
__maybe_unused u32 qe_ratio;
|
|
#endif
|
|
|
|
plat_ratio = (gur->porpllsr) & 0x0000003e;
|
|
plat_ratio >>= 1;
|
|
sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ;
|
|
|
|
/* Divide before multiply to avoid integer
|
|
* overflow for processor speeds above 2GHz */
|
|
half_freqSystemBus = sysInfo->freqSystemBus/2;
|
|
for (i = 0; i < cpu_numcores(); i++) {
|
|
e500_ratio = ((gur->porpllsr) >> (i * 8 + 16)) & 0x3f;
|
|
sysInfo->freqProcessor[i] = e500_ratio * half_freqSystemBus;
|
|
}
|
|
|
|
/* Note: freqDDRBus is the MCLK frequency, not the data rate. */
|
|
sysInfo->freqDDRBus = sysInfo->freqSystemBus;
|
|
|
|
#ifdef CONFIG_DDR_CLK_FREQ
|
|
{
|
|
u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO)
|
|
>> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
|
|
if (ddr_ratio != 0x7)
|
|
sysInfo->freqDDRBus = ddr_ratio * CONFIG_DDR_CLK_FREQ;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_QE
|
|
#if defined(CONFIG_P1012) || defined(CONFIG_P1016) || \
|
|
defined(CONFIG_P1021) || defined(CONFIG_P1025)
|
|
sysInfo->freqQE = sysInfo->freqSystemBus;
|
|
#else
|
|
qe_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_QE_RATIO)
|
|
>> MPC85xx_PORPLLSR_QE_RATIO_SHIFT;
|
|
sysInfo->freqQE = qe_ratio * CONFIG_SYS_CLK_FREQ;
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_DPAA_FMAN
|
|
sysInfo->freqFMan[0] = sysInfo->freqSystemBus;
|
|
#endif
|
|
|
|
#endif /* CONFIG_FSL_CORENET */
|
|
|
|
#if defined(CONFIG_FSL_LBC)
|
|
#if defined(CONFIG_SYS_LBC_LCRR)
|
|
/* We will program LCRR to this value later */
|
|
lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV;
|
|
#else
|
|
lcrr_div = in_be32(&(LBC_BASE_ADDR)->lcrr) & LCRR_CLKDIV;
|
|
#endif
|
|
if (lcrr_div == 2 || lcrr_div == 4 || lcrr_div == 8) {
|
|
#if defined(CONFIG_FSL_CORENET)
|
|
/* If this is corenet based SoC, bit-representation
|
|
* for four times the clock divider values.
|
|
*/
|
|
lcrr_div *= 4;
|
|
#elif !defined(CONFIG_MPC8540) && !defined(CONFIG_MPC8541) && \
|
|
!defined(CONFIG_MPC8555) && !defined(CONFIG_MPC8560)
|
|
/*
|
|
* Yes, the entire PQ38 family use the same
|
|
* bit-representation for twice the clock divider values.
|
|
*/
|
|
lcrr_div *= 2;
|
|
#endif
|
|
sysInfo->freqLocalBus = sysInfo->freqSystemBus / lcrr_div;
|
|
} else {
|
|
/* In case anyone cares what the unknown value is */
|
|
sysInfo->freqLocalBus = lcrr_div;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
int get_clocks (void)
|
|
{
|
|
sys_info_t sys_info;
|
|
#ifdef CONFIG_MPC8544
|
|
volatile ccsr_gur_t *gur = (void *) CONFIG_SYS_MPC85xx_GUTS_ADDR;
|
|
#endif
|
|
#if defined(CONFIG_CPM2)
|
|
volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR;
|
|
uint sccr, dfbrg;
|
|
|
|
/* set VCO = 4 * BRG */
|
|
cpm->im_cpm_intctl.sccr &= 0xfffffffc;
|
|
sccr = cpm->im_cpm_intctl.sccr;
|
|
dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT;
|
|
#endif
|
|
get_sys_info (&sys_info);
|
|
gd->cpu_clk = sys_info.freqProcessor[0];
|
|
gd->bus_clk = sys_info.freqSystemBus;
|
|
gd->mem_clk = sys_info.freqDDRBus;
|
|
gd->lbc_clk = sys_info.freqLocalBus;
|
|
|
|
#ifdef CONFIG_QE
|
|
gd->qe_clk = sys_info.freqQE;
|
|
gd->brg_clk = gd->qe_clk / 2;
|
|
#endif
|
|
/*
|
|
* The base clock for I2C depends on the actual SOC. Unfortunately,
|
|
* there is no pattern that can be used to determine the frequency, so
|
|
* the only choice is to look up the actual SOC number and use the value
|
|
* for that SOC. This information is taken from application note
|
|
* AN2919.
|
|
*/
|
|
#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
|
|
defined(CONFIG_MPC8560) || defined(CONFIG_MPC8555)
|
|
gd->i2c1_clk = sys_info.freqSystemBus;
|
|
#elif defined(CONFIG_MPC8544)
|
|
/*
|
|
* On the 8544, the I2C clock is the same as the SEC clock. This can be
|
|
* either CCB/2 or CCB/3, depending on the value of cfg_sec_freq. See
|
|
* 4.4.3.3 of the 8544 RM. Note that this might actually work for all
|
|
* 85xx, but only the 8544 has cfg_sec_freq, so it's unknown if the
|
|
* PORDEVSR2_SEC_CFG bit is 0 on all 85xx boards that are not an 8544.
|
|
*/
|
|
if (gur->pordevsr2 & MPC85xx_PORDEVSR2_SEC_CFG)
|
|
gd->i2c1_clk = sys_info.freqSystemBus / 3;
|
|
else
|
|
gd->i2c1_clk = sys_info.freqSystemBus / 2;
|
|
#else
|
|
/* Most 85xx SOCs use CCB/2, so this is the default behavior. */
|
|
gd->i2c1_clk = sys_info.freqSystemBus / 2;
|
|
#endif
|
|
gd->i2c2_clk = gd->i2c1_clk;
|
|
|
|
#if defined(CONFIG_FSL_ESDHC)
|
|
#if defined(CONFIG_MPC8569) || defined(CONFIG_P1010) ||\
|
|
defined(CONFIG_P1014)
|
|
gd->sdhc_clk = gd->bus_clk;
|
|
#else
|
|
gd->sdhc_clk = gd->bus_clk / 2;
|
|
#endif
|
|
#endif /* defined(CONFIG_FSL_ESDHC) */
|
|
|
|
#if defined(CONFIG_CPM2)
|
|
gd->vco_out = 2*sys_info.freqSystemBus;
|
|
gd->cpm_clk = gd->vco_out / 2;
|
|
gd->scc_clk = gd->vco_out / 4;
|
|
gd->brg_clk = gd->vco_out / (1 << (2 * (dfbrg + 1)));
|
|
#endif
|
|
|
|
if(gd->cpu_clk != 0) return (0);
|
|
else return (1);
|
|
}
|
|
|
|
|
|
/********************************************
|
|
* get_bus_freq
|
|
* return system bus freq in Hz
|
|
*********************************************/
|
|
ulong get_bus_freq (ulong dummy)
|
|
{
|
|
return gd->bus_clk;
|
|
}
|
|
|
|
/********************************************
|
|
* get_ddr_freq
|
|
* return ddr bus freq in Hz
|
|
*********************************************/
|
|
ulong get_ddr_freq (ulong dummy)
|
|
{
|
|
return gd->mem_clk;
|
|
}
|