Messages in this thread Patch in this message | | | Date | Tue, 17 May 2005 11:59:33 -0500 (CDT) | From | Kumar Gala <> | Subject | [PATCH] ppc32: Fix some minor issues related to FSL Book-E KGDB support |
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Some debug registers needed to be initialized early on to allow proper support for KGDB. Additionally, we need to setup the ppc.md_early_serial_map function pointer on boards that have serial support for KGDB.
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
--- commit 704da4a5c793087584fa5d0ed73440dd4ac44294 tree 1702b9dd418707a930969079b460df0ace2f1c1a parent f772a90e948f019c3111a94394b3a649874417c7 author Kumar K. Gala <kumar.gala@freescale.com> Mon, 16 May 2005 11:12:35 -0500 committer Kumar K. Gala <kumar.gala@freescale.com> Mon, 16 May 2005 11:12:35 -0500
ppc/kernel/head_fsl_booke.S | 15 ++++++++++++++- ppc/platforms/85xx/mpc8540_ads.c | 3 +++ ppc/platforms/85xx/mpc85xx_cds_common.c | 3 +++ ppc/platforms/85xx/sbc8560.c | 3 +++ 4 files changed, 23 insertions(+), 1 deletion(-)
Index: arch/ppc/kernel/head_fsl_booke.S =================================================================== --- c9d59c269792db4933039da49b3b3836ac5b01f5/arch/ppc/kernel/head_fsl_booke.S (mode:100644) +++ 1702b9dd418707a930969079b460df0ace2f1c1a/arch/ppc/kernel/head_fsl_booke.S (mode:100644) @@ -232,7 +232,8 @@ tlbwe /* 7. Jump to KERNELBASE mapping */ - li r7,0 + lis r7,MSR_KERNEL@h + ori r7,r7,MSR_KERNEL@l bl 1f /* Find our address */ 1: mflr r9 rlwimi r6,r9,0,20,31 @@ -291,6 +292,18 @@ mfspr r2,SPRN_HID0 oris r2,r2,HID0_DOZE@h mtspr SPRN_HID0, r2 +#endif + +#if !defined(CONFIG_BDI_SWITCH) + /* + * The Abatron BDI JTAG debugger does not tolerate others + * mucking with the debug registers. + */ + lis r2,DBCR0_IDM@h + mtspr SPRN_DBCR0,r2 + /* clear any residual debug events */ + li r2,-1 + mtspr SPRN_DBSR,r2 #endif /* Index: arch/ppc/platforms/85xx/mpc8540_ads.c =================================================================== --- c9d59c269792db4933039da49b3b3836ac5b01f5/arch/ppc/platforms/85xx/mpc8540_ads.c (mode:100644) +++ 1702b9dd418707a930969079b460df0ace2f1c1a/arch/ppc/platforms/85xx/mpc8540_ads.c (mode:100644) @@ -210,6 +210,9 @@ #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) ppc_md.progress = gen550_progress; #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ +#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB) + ppc_md.early_serial_map = mpc85xx_early_serial_map; +#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */ if (ppc_md.progress) ppc_md.progress("mpc8540ads_init(): exit", 0); Index: arch/ppc/platforms/85xx/mpc85xx_cds_common.c =================================================================== --- c9d59c269792db4933039da49b3b3836ac5b01f5/arch/ppc/platforms/85xx/mpc85xx_cds_common.c (mode:100644) +++ 1702b9dd418707a930969079b460df0ace2f1c1a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c (mode:100644) @@ -459,6 +459,9 @@ #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) ppc_md.progress = gen550_progress; #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ +#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB) + ppc_md.early_serial_map = mpc85xx_early_serial_map; +#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */ if (ppc_md.progress) ppc_md.progress("mpc85xx_cds_init(): exit", 0); Index: arch/ppc/platforms/85xx/sbc8560.c =================================================================== --- c9d59c269792db4933039da49b3b3836ac5b01f5/arch/ppc/platforms/85xx/sbc8560.c (mode:100644) +++ 1702b9dd418707a930969079b460df0ace2f1c1a/arch/ppc/platforms/85xx/sbc8560.c (mode:100644) @@ -221,6 +221,9 @@ #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) ppc_md.progress = gen550_progress; #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ +#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB) + ppc_md.early_serial_map = sbc8560_early_serial_map; +#endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */ if (ppc_md.progress) ppc_md.progress("sbc8560_init(): exit", 0); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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