On ls2080 we have a separate network fabric component which we need to shut down before we enter Linux (or any other OS). Along with that also comes configuration of the fabric using a description file.
Today we always stop and configure the fabric in the boot script and (again) exit it on device tree generation. This works ok for the normal booti case, but with bootefi the payload we're running may still want to access the network.
So let's add a new fsl_mc command that defers configuration and stopping the hardware to when we actually exit U-Boot, so that we can still use the fabric from an EFI payload.
For existing boot scripts, nothing should change with this patch.
Signed-off-by: Alexander Graf agraf@suse.de --- arch/arm/lib/bootm.c | 11 +++++++++++ board/freescale/ls2080a/ls2080a.c | 1 - board/freescale/ls2080aqds/ls2080aqds.c | 4 ---- board/freescale/ls2080ardb/ls2080ardb.c | 4 ---- drivers/net/fsl-mc/mc.c | 22 ++++++++++++++++++++-- lib/efi_loader/efi_boottime.c | 10 ++++++++++ 6 files changed, 41 insertions(+), 11 deletions(-)
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index 0838d89..95037c1 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -30,6 +30,11 @@ #include <asm/armv7.h> #endif
+#ifdef CONFIG_FSL_MC_ENET +#include <fsl-mc/fsl_mc.h> +#include <fsl-mc/fsl_mc_private.h> +#endif + DECLARE_GLOBAL_DATA_PTR;
static struct tag *params; @@ -84,6 +89,12 @@ static void announce_and_cleanup(int fake) #ifdef CONFIG_USB_DEVICE udc_disconnect(); #endif + +#ifdef CONFIG_FSL_MC_ENET + if (!fsl_mc_ldpaa_exit(NULL)) + mc_apply_dpl(0); +#endif + cleanup_before_linux(); }
diff --git a/board/freescale/ls2080a/ls2080a.c b/board/freescale/ls2080a/ls2080a.c index 00337d7..ca2bcfc 100644 --- a/board/freescale/ls2080a/ls2080a.c +++ b/board/freescale/ls2080a/ls2080a.c @@ -127,7 +127,6 @@ int ft_board_setup(void *blob, bd_t *bd)
#ifdef CONFIG_FSL_MC_ENET fdt_fixup_board_enet(blob); - fsl_mc_ldpaa_exit(bd); #endif
return 0; diff --git a/board/freescale/ls2080aqds/ls2080aqds.c b/board/freescale/ls2080aqds/ls2080aqds.c index b3bd40a..a8620f7 100644 --- a/board/freescale/ls2080aqds/ls2080aqds.c +++ b/board/freescale/ls2080aqds/ls2080aqds.c @@ -282,7 +282,6 @@ void fdt_fixup_board_enet(void *fdt) #ifdef CONFIG_OF_BOARD_SETUP int ft_board_setup(void *blob, bd_t *bd) { - int err; u64 base[CONFIG_NR_DRAM_BANKS]; u64 size[CONFIG_NR_DRAM_BANKS];
@@ -298,9 +297,6 @@ int ft_board_setup(void *blob, bd_t *bd)
#ifdef CONFIG_FSL_MC_ENET fdt_fixup_board_enet(blob); - err = fsl_mc_ldpaa_exit(bd); - if (err) - return err; #endif
return 0; diff --git a/board/freescale/ls2080ardb/ls2080ardb.c b/board/freescale/ls2080ardb/ls2080ardb.c index fb39af6..0cc67c1 100644 --- a/board/freescale/ls2080ardb/ls2080ardb.c +++ b/board/freescale/ls2080ardb/ls2080ardb.c @@ -261,7 +261,6 @@ void fdt_fixup_board_enet(void *fdt) #ifdef CONFIG_OF_BOARD_SETUP int ft_board_setup(void *blob, bd_t *bd) { - int err; u64 base[CONFIG_NR_DRAM_BANKS]; u64 size[CONFIG_NR_DRAM_BANKS];
@@ -277,9 +276,6 @@ int ft_board_setup(void *blob, bd_t *bd)
#ifdef CONFIG_FSL_MC_ENET fdt_fixup_board_enet(blob); - err = fsl_mc_ldpaa_exit(bd); - if (err) - return err; #endif
return 0; diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c index 1811b0f..d0f5e02 100644 --- a/drivers/net/fsl-mc/mc.c +++ b/drivers/net/fsl-mc/mc.c @@ -40,6 +40,7 @@ int child_dprc_id; struct fsl_dpbp_obj *dflt_dpbp = NULL; struct fsl_dpio_obj *dflt_dpio = NULL; struct fsl_dpni_obj *dflt_dpni = NULL; +static u64 mc_lazy_dpl_addr;
#ifdef DEBUG void dump_ram_words(const char *title, void *addr) @@ -572,6 +573,12 @@ int mc_apply_dpl(u64 mc_dpl_addr) u64 mc_ram_addr = mc_get_dram_addr(); size_t mc_ram_size = mc_get_dram_block_size();
+ if (!mc_dpl_addr) + mc_dpl_addr = mc_lazy_dpl_addr; + + if (!mc_dpl_addr) + return -1; + error = load_mc_dpl(mc_ram_addr, mc_ram_size, mc_dpl_addr); if (error != 0) return error; @@ -1259,6 +1266,7 @@ static int do_fsl_mc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } break;
+ case 'l': case 'a': { u64 mc_dpl_addr;
@@ -1279,8 +1287,17 @@ static int do_fsl_mc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return -ENODEV; }
- if (!fsl_mc_ldpaa_exit(NULL)) - err = mc_apply_dpl(mc_dpl_addr); + if (argv[1][0] == 'l') { + /* + * We will do the actual dpaa exit and dpl apply + * later from announce_and_cleanup(). + */ + mc_lazy_dpl_addr = mc_dpl_addr; + } else { + /* The user wants it applied now */ + if (!fsl_mc_ldpaa_exit(NULL)) + err = mc_apply_dpl(mc_dpl_addr); + } break; } default: @@ -1298,5 +1315,6 @@ U_BOOT_CMD( "DPAA2 command to manage Management Complex (MC)", "start mc [FW_addr] [DPC_addr] - Start Management Complex\n" "fsl_mc apply DPL [DPL_addr] - Apply DPL file\n" + "fsl_mc lazyapply DPL [DPL_addr] - Apply DPL file on exit\n" "fsl_mc start aiop [FW_addr] - Start AIOP\n" ); diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 9daca50..0aff793 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -18,6 +18,11 @@ #include <inttypes.h> #include <watchdog.h>
+#ifdef CONFIG_FSL_MC_ENET +#include <fsl-mc/fsl_mc.h> +#include <fsl-mc/fsl_mc_private.h> +#endif + DECLARE_GLOBAL_DATA_PTR;
/* This list contains all the EFI objects our payload has access to */ @@ -516,6 +521,11 @@ static efi_status_t EFIAPI efi_exit_boot_services(void *image_handle, { EFI_ENTRY("%p, %ld", image_handle, map_key);
+#ifdef CONFIG_FSL_MC_ENET + if (!fsl_mc_ldpaa_exit(NULL)) + mc_apply_dpl(0); +#endif + /* Fix up caches for EFI payloads if necessary */ efi_exit_caches();