On 10.01.20 11:58, Kuldeep Singh wrote:
Hi Frieder,
-----Original Message----- From: Schrempf Frieder frieder.schrempf@kontron.de Sent: Wednesday, January 8, 2020 2:52 PM To: Kuldeep Singh kuldeep.singh@nxp.com; u-boot@lists.denx.de Cc: Joe Hershberger joe.hershberger@ni.com; Thomas Hebb tommyhebb@gmail.com; Patrick Delaunay patrick.delaunay@st.com Subject: [EXT] Re: [Patch v3] net: pfe_eth: Use spi_flash_read API to access flash memory
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On 08.01.20 10:08, Kuldeep Singh wrote:
Current PFE firmware access spi-nor memory directly. New spi-mem framework does not support direct memory access. So, let's use spi_flash_read API to access memory instead of directly using it.
Signed-off-by: Kuldeep Singh kuldeep.singh@nxp.com
v3: -Replace ret with 0 if flash probe fails v2: -Add return error code -Some changes in displayed log
drivers/net/pfe_eth/pfe_firmware.c | 45
+++++++++++++++++++++++++++++++++++++-
include/configs/ls1012a_common.h | 5 ++++- 2 files changed, 48 insertions(+), 2 deletions(-)
diff --git a/drivers/net/pfe_eth/pfe_firmware.c b/drivers/net/pfe_eth/pfe_firmware.c index e4563f1..6145f4e 100644 --- a/drivers/net/pfe_eth/pfe_firmware.c +++ b/drivers/net/pfe_eth/pfe_firmware.c @@ -12,13 +12,14 @@
#include <net/pfe_eth/pfe_eth.h> #include <net/pfe_eth/pfe_firmware.h> +#include <spi_flash.h> #ifdef CONFIG_CHAIN_OF_TRUST #include <fsl_validate.h> #endif
#define PFE_FIRMWARE_FIT_CNF_NAME "config@1"
-static const void *pfe_fit_addr = (void *)CONFIG_SYS_LS_PFE_FW_ADDR; +static const void *pfe_fit_addr;
/* * PFE elf firmware loader. @@ -159,6 +160,44 @@ static int pfe_fit_check(void) return ret; }
+int pfe_spi_flash_init(void) +{
struct spi_flash *pfe_flash;int ret = 0;void *addr = malloc(CONFIG_SYS_QE_FMAN_FW_LENGTH);+#ifdef CONFIG_DM_SPI_FLASH
struct udevice *new;/* speed and mode will be read from DT */ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS,CONFIG_ENV_SPI_CS, 0, 0, &new);pfe_flash = dev_get_uclass_priv(new); #elsepfe_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,CONFIG_ENV_SPI_CS,CONFIG_ENV_SPI_MAX_HZ,CONFIG_ENV_SPI_MODE); #endifif (!pfe_flash) {printf("SF: probe for pfe failed\n");return 0;No again. It seems like you're not getting what I'm trying to tell you, so it would be better to just ask back instead of posting new versions.
pfe_spi_flash_init() should return an error code in case the probe of the SPI flash failed. An error code is a negative value like for example -ENODEV to report that the device is not available to the calling function.
Thanks Frieder for providing the info. I will return -ENODEV here instead of 0.
}ret = spi_flash_read(pfe_flash,CONFIG_SYS_LS_PFE_FW_ADDR,CONFIG_SYS_QE_FMAN_FW_LENGTH,addr);if (ret)printf("SF: read for pfe failed\n");I think -EIO should also be returned here as pfe functionality will fail if data is not read. Please confirm the same if error code is correct/required. I will update this in next version.
No, I don't think it's a good idea to return an error code here. You already get an error code back from spi_flash_read() if it fails and you pass this error to the caller at the end of the function, which should be sufficient.
Also returning here would require to add a call to spi_flash_free() first.
Thanks Kuldeep
pfe_fit_addr = addr;spi_flash_free(pfe_flash);return ret;+}
- /*
- PFE firmware initialization.
- Loads different firmware files from FIT image.
@@ -183,6 +222,10 @@ int pfe_firmware_init(void) int ret = 0; int fw_count;
ret = pfe_spi_flash_init();if (ret)goto err;ret = pfe_fit_check(); if (ret) goto err;diff --git a/include/configs/ls1012a_common.h b/include/configs/ls1012a_common.h index 2579e2f..cbc5bff 100644 --- a/include/configs/ls1012a_common.h +++ b/include/configs/ls1012a_common.h @@ -36,9 +36,12 @@ /* Size of malloc() pool */ #define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128 *
+/* PFE */ +#define CONFIG_SYS_FMAN_FW_ADDR 0x400d0000 +#define CONFIG_SYS_QE_FMAN_FW_LENGTH 0x10000
- /*SPI device */ #if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_TFABOOT)
-#define CONFIG_SYS_FMAN_FW_ADDR 0x400d0000 #define CONFIG_SPI_FLASH_SPANSION #define CONFIG_FSL_SPI_INTERFACE #define CONFIG_SF_DATAFLASH