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stm32mp1: add support for virtual partition read

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Add read for OTP and PMIC NVM with alternates
on virtual DFU device.

Serie-cc: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay 2019-10-14 09:28:12 +02:00
parent fd399a1839
commit b4fee16108
4 changed files with 86 additions and 0 deletions
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83
board/st/stm32mp1/stm32mp1.c
View File

@ -992,9 +992,92 @@ void set_dfu_alt_info(char *interface, char *devstr)
if (!IS_ERR_OR_NULL(mtd))
board_get_alt_info("spi-nand0", buf);
#ifdef CONFIG_DFU_VIRT
strncat(buf, "&virt 0=OTP", DFU_ALT_BUF_LEN);
if (IS_ENABLED(CONFIG_PMIC_STPMIC1))
strncat(buf, "&virt 1=PMIC", DFU_ALT_BUF_LEN);
#endif
env_set("dfu_alt_info", buf);
puts("DFU alt info setting: done\n");
}
#if CONFIG_IS_ENABLED(DFU_VIRT)
#include <dfu.h>
#include <power/stpmic1.h>
int dfu_otp_read(u64 offset, u8 *buffer, long *size)
{
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stm32mp_bsec),
&dev);
if (ret)
return ret;
ret = misc_read(dev, offset + STM32_BSEC_OTP_OFFSET, buffer, *size);
if (ret >= 0) {
*size = ret;
ret = 0;
}
return 0;
}
int dfu_pmic_read(u64 offset, u8 *buffer, long *size)
{
int ret;
#ifdef CONFIG_PMIC_STPMIC1
struct udevice *dev;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stpmic1_nvm),
&dev);
if (ret)
return ret;
ret = misc_read(dev, 0xF8 + offset, buffer, *size);
if (ret >= 0) {
*size = ret;
ret = 0;
}
if (ret == -EACCES) {
*size = 0;
ret = 0;
}
#else
pr_err("PMIC update not supported");
ret = -EOPNOTSUPP;
#endif
return ret;
}
int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
switch (dfu->data.virt.dev_num) {
case 0x0:
return dfu_otp_read(offset, buf, len);
case 0x1:
return dfu_pmic_read(offset, buf, len);
}
*len = 0;
return 0;
}
int __weak dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
{
*size = SZ_1K;
return 0;
}
#endif
#endif
static void board_copro_image_process(ulong fw_image, size_t fw_size)

1
configs/stm32mp15_basic_defconfig
View File

@ -68,6 +68,7 @@ CONFIG_STM32_ADC=y
CONFIG_DFU_MMC=y
CONFIG_DFU_RAM=y
CONFIG_DFU_MTD=y
CONFIG_DFU_VIRT=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0xC0000000
CONFIG_FASTBOOT_BUF_SIZE=0x02000000

1
configs/stm32mp15_optee_defconfig
View File

@ -55,6 +55,7 @@ CONFIG_STM32_ADC=y
CONFIG_DFU_MMC=y
CONFIG_DFU_RAM=y
CONFIG_DFU_MTD=y
CONFIG_DFU_VIRT=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0xC0000000
CONFIG_FASTBOOT_BUF_SIZE=0x02000000

1
configs/stm32mp15_trusted_defconfig
View File

@ -54,6 +54,7 @@ CONFIG_STM32_ADC=y
CONFIG_DFU_MMC=y
CONFIG_DFU_RAM=y
CONFIG_DFU_MTD=y
CONFIG_DFU_VIRT=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0xC0000000
CONFIG_FASTBOOT_BUF_SIZE=0x02000000