patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 8 Packages Projects Releases Wiki Activity

drivers: memc: fix FlexRAM bank cfg issue

Browse source 
From IMXRT1170RM.pdf, iomuxc_gpr->GPR17 is
used to configure FlexRAM bank 0~7.
iomuxc_gpr->GPR18 is used to configure
FlexRAM bank 8~15.

Set low 2 bytes to iomuxc_gpr->GPR17.
Set high 2 bytes to iomuxc_gpr->GPR18.

Signed-off-by: Lyle Zhu <lyle.zhu@nxp.com>
This commit is contained in:
Lyle Zhu 2024-03-29 13:21:34 +08:00 committed by Anas Nashif
parent 747440c46e
commit 97fcbc905b
1 changed files with 14 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
drivers/memc/memc_nxp_flexram.h
View file

@ -1,5 +1,5 @@
/*
* Copyright 2023 NXP
* Copyright 2023-2024 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -7,7 +7,7 @@
#include <zephyr/devicetree.h>
#include <soc.h>
#define FLEXRAM_DT_NODE DT_INST(0, nxp_flexram)
#define FLEXRAM_DT_NODE DT_INST(0, nxp_flexram)
#define IOMUXC_GPR_DT_NODE DT_NODELABEL(iomuxcgpr)
#if defined(CONFIG_MEMC_NXP_FLEXRAM_MAGIC_ADDR_API) || \
@ -44,20 +44,27 @@ void memc_flexram_register_callback(flexram_callback_t callback, void *user_data
* call from platform_init to set up flexram if using runtime map
* must be inlined because cannot use stack
*/
#define GPR17_REG_FILL(node_id, prop, idx) + (DT_PROP_BY_IDX(node_id, prop, idx) << (2*idx))
#define GPR_FLEXRAM_REG_FILL(node_id, prop, idx) \
(((uint32_t)DT_PROP_BY_IDX(node_id, prop, idx)) << (2 * idx))
static inline void memc_flexram_dt_partition(void)
{
/* iomuxc_gpr must be const (in ROM region) because used in reconfiguring ram */
static IOMUXC_GPR_Type *const iomuxc_gpr =
(IOMUXC_GPR_Type *) DT_REG_ADDR(IOMUXC_GPR_DT_NODE);
(IOMUXC_GPR_Type *)DT_REG_ADDR(IOMUXC_GPR_DT_NODE);
/* do not create stack variables or use any data from ram in this function */
iomuxc_gpr->GPR17 = DT_FOREACH_PROP_ELEM_SEP(FLEXRAM_DT_NODE,
flexram_bank_spec, GPR17_REG_FILL, (+));
#if defined(CONFIG_SOC_SERIES_IMXRT11XX)
iomuxc_gpr->GPR17 = (DT_FOREACH_PROP_ELEM_SEP(FLEXRAM_DT_NODE, flexram_bank_spec,
GPR_FLEXRAM_REG_FILL, (+))) & 0xFFFF;
iomuxc_gpr->GPR18 = (((DT_FOREACH_PROP_ELEM_SEP(FLEXRAM_DT_NODE, flexram_bank_spec,
GPR_FLEXRAM_REG_FILL, (+)))) >> 16) & 0xFFFF;
#elif defined(CONFIG_SOC_SERIES_IMXRT10XX)
iomuxc_gpr->GPR17 = DT_FOREACH_PROP_ELEM_SEP(FLEXRAM_DT_NODE, flexram_bank_spec,
GPR_FLEXRAM_REG_FILL, (+));
#endif
iomuxc_gpr->GPR16 |= IOMUXC_GPR_GPR16_FLEXRAM_BANK_CFG_SEL_MASK;
}
#endif /* FLEXRAM_RUNTIME_BANKS_USED */
#ifdef CONFIG_MEMC_NXP_FLEXRAM_MAGIC_ADDR_API
/** @brief Sets magic address for OCRAM
*