On 10/25/2016 07:10 PM, Yuan Yao wrote:
From: Yuan Yao yao.yuan@nxp.com
The default configuration for QSPI AHB bus can't support 16MB+. But some flash on NXP layerscape board are more than 16MB.
So what do you do?
Is this an erratum workaround? If yes, please refer the erratum number.
Signed-off-by: Yuan Yao yao.yuan@nxp.com
arch/arm/cpu/armv8/fsl-layerscape/soc.c | 37 ++++++++++++++++++++++ .../include/asm/arch-fsl-layerscape/immap_lsch2.h | 1 + .../include/asm/arch-fsl-layerscape/immap_lsch3.h | 1 + include/configs/ls1012a_common.h | 1 + include/configs/ls1046ardb.h | 1 + 5 files changed, 41 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index d68eeba..18d753e 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -370,6 +370,40 @@ void fsl_lsch2_early_init_f(void) } #endif
+#ifdef CONFIG_QSPI_AHB_INIT +/* Enable 4bytes address support and fast read */ +int qspi_ahb_init(void) +{
- u32 *qspi_lut, lut_key, *qspi_key;
- qspi_key = (void *)CONFIG_SYS_QSPI_ADDR + 0x300;
- qspi_lut = (void *)CONFIG_SYS_QSPI_ADDR + 0x310;
- lut_key = in_be32(qspi_key);
- if (lut_key == 0x5af05af0) {
/* That means the register is BE */out_be32(qspi_key, 0x5af05af0);out_be32(qspi_key + 1, 0x00000002);out_be32(qspi_lut, 0x0820040c);out_be32(qspi_lut + 1, 0x1c080c08);out_be32(qspi_lut + 2, 0x00002400);out_be32(qspi_key, 0x5af05af0);out_be32(qspi_key + 1, 0x00000001);- } else {
/* That means the register is LE */out_le32(qspi_key, 0x5af05af0);out_le32(qspi_key + 1, 0x00000002);out_le32(qspi_lut, 0x0820040c);out_le32(qspi_lut + 1, 0x1c080c08);out_le32(qspi_lut + 2, 0x00002400);out_le32(qspi_key, 0x5af05af0);out_le32(qspi_key + 1, 0x00000001);- }
What do these sequences do?
Put a blank line before return.
- return 0;
+} +#endif
#ifdef CONFIG_BOARD_LATE_INIT int board_late_init(void) { @@ -379,6 +413,9 @@ int board_late_init(void) #ifdef CONFIG_CHAIN_OF_TRUST fsl_setenv_chain_of_trust(); #endif +#ifdef CONFIG_QSPI_AHB_INIT
- qspi_ahb_init();
+#endif
return 0; } diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h index d88543d..a28b1fd 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h @@ -18,6 +18,7 @@ #define CONFIG_SYS_CCI400_ADDR (CONFIG_SYS_IMMR + 0x00180000) #define CONFIG_SYS_GIC400_ADDR (CONFIG_SYS_IMMR + 0x00400000) #define CONFIG_SYS_IFC_ADDR (CONFIG_SYS_IMMR + 0x00530000) +#define CONFIG_SYS_QSPI_ADDR (CONFIG_SYS_IMMR + 0x00550000) #define CONFIG_SYS_FSL_ESDHC_ADDR (CONFIG_SYS_IMMR + 0x00560000) #define CONFIG_SYS_FSL_CSU_ADDR (CONFIG_SYS_IMMR + 0x00510000) #define CONFIG_SYS_FSL_GUTS_ADDR (CONFIG_SYS_IMMR + 0x00ee0000) diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h index 7acba27..8aefc76 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h @@ -19,6 +19,7 @@ #define CONFIG_SYS_FSL_CH3_CLK_GRPA_ADDR (CONFIG_SYS_IMMR + 0x00300000) #define CONFIG_SYS_FSL_CH3_CLK_GRPB_ADDR (CONFIG_SYS_IMMR + 0x00310000) #define CONFIG_SYS_FSL_CH3_CLK_CTRL_ADDR (CONFIG_SYS_IMMR + 0x00370000) +#define CONFIG_SYS_QSPI_ADDR (CONFIG_SYS_IMMR + 0x010c0000) #define CONFIG_SYS_FSL_ESDHC_ADDR (CONFIG_SYS_IMMR + 0x01140000) #define CONFIG_SYS_IFC_ADDR (CONFIG_SYS_IMMR + 0x01240000) #define CONFIG_SYS_NS16550_COM1 (CONFIG_SYS_IMMR + 0x011C0500) diff --git a/include/configs/ls1012a_common.h b/include/configs/ls1012a_common.h index 80603c9..c1e1102 100644 --- a/include/configs/ls1012a_common.h +++ b/include/configs/ls1012a_common.h @@ -61,6 +61,7 @@
#define FSL_QSPI_FLASH_SIZE (1 << 24) #define FSL_QSPI_FLASH_NUM 2 +#define CONFIG_QSPI_AHB_INIT
/*
- Environment
diff --git a/include/configs/ls1046ardb.h b/include/configs/ls1046ardb.h index 2fe8fc1..662ecb1 100644 --- a/include/configs/ls1046ardb.h +++ b/include/configs/ls1046ardb.h @@ -209,6 +209,7 @@ #define FSL_QSPI_FLASH_SIZE (1 << 26) #define FSL_QSPI_FLASH_NUM 2 #define CONFIG_SPI_FLASH_BAR +#define CONFIG_QSPI_AHB_INIT
Is it really a config option? Is it really board-dependent? Does it compile on the latest master branch?
York