diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/cpu_init.c | 29 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/fdt.c | 26 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/t1040_ids.c | 1 |
3 files changed, 56 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c index d6cf885..78316a6 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c @@ -225,6 +225,32 @@ static void disable_cpc_sram(void) } #endif +#if defined(T1040_TDM_QUIRK_CCSR_BASE) +#ifdef CONFIG_POST +#error POST memory test cannot be enabled with TDM +#endif +static void enable_tdm_law(void) +{ + int ret; + char buffer[HWCONFIG_BUFFER_SIZE] = {0}; + int tdm_hwconfig_enabled = 0; + + /* + * Extract hwconfig from environment since environment + * is not setup properly yet. Search for tdm entry in + * hwconfig. + */ + ret = getenv_f("hwconfig", buffer, sizeof(buffer)); + if (ret > 0) { + tdm_hwconfig_enabled = hwconfig_f("tdm", buffer); + /* If tdm is defined in hwconfig, set law for tdm workaround */ + if (tdm_hwconfig_enabled) + set_next_law(T1040_TDM_QUIRK_CCSR_BASE, LAW_SIZE_16M, + LAW_TRGT_IF_CCSR); + } +} +#endif + static void enable_cpc(void) { int i; @@ -729,6 +755,9 @@ skip_l2: disable_cpc_sram(); #endif enable_cpc(); +#if defined(T1040_TDM_QUIRK_CCSR_BASE) + enable_tdm_law(); +#endif #ifndef CONFIG_SYS_FSL_NO_SERDES /* needs to be in ram since code uses global static vars */ diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c index ed80a84..85dfa5b 100644 --- a/arch/powerpc/cpu/mpc85xx/fdt.c +++ b/arch/powerpc/cpu/mpc85xx/fdt.c @@ -14,6 +14,7 @@ #include <linux/ctype.h> #include <asm/io.h> #include <asm/fsl_portals.h> +#include <hwconfig.h> #ifdef CONFIG_FSL_ESDHC #include <fsl_esdhc.h> #endif @@ -35,6 +36,11 @@ void ft_fixup_cpu(void *blob, u64 memory_limit) u32 bootpg = determine_mp_bootpg(NULL); u32 id = get_my_id(); const char *enable_method; +#if defined(T1040_TDM_QUIRK_CCSR_BASE) + int ret; + int tdm_hwconfig_enabled = 0; + char buffer[HWCONFIG_BUFFER_SIZE] = {0}; +#endif off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); while (off != -FDT_ERR_NOTFOUND) { @@ -77,6 +83,26 @@ void ft_fixup_cpu(void *blob, u64 memory_limit) "device_type", "cpu", 4); } +#if defined(T1040_TDM_QUIRK_CCSR_BASE) +#define CONFIG_MEM_HOLE_16M 0x1000000 + /* + * Extract hwconfig from environment. + * Search for tdm entry in hwconfig. + */ + ret = getenv_f("hwconfig", buffer, sizeof(buffer)); + if (ret > 0) + tdm_hwconfig_enabled = hwconfig_f("tdm", buffer); + + /* Reserve the memory hole created by TDM LAW, so OSes dont use it */ + if (tdm_hwconfig_enabled) { + off = fdt_add_mem_rsv(blob, T1040_TDM_QUIRK_CCSR_BASE, + CONFIG_MEM_HOLE_16M); + if (off < 0) + printf("Failed to reserve memory for tdm: %s\n", + fdt_strerror(off)); + } +#endif + /* Reserve the boot page so OSes dont use it */ if ((u64)bootpg < memory_limit) { off = fdt_add_mem_rsv(blob, bootpg, (u64)4096); diff --git a/arch/powerpc/cpu/mpc85xx/t1040_ids.c b/arch/powerpc/cpu/mpc85xx/t1040_ids.c index 1034cd4..a5dfb81 100644 --- a/arch/powerpc/cpu/mpc85xx/t1040_ids.c +++ b/arch/powerpc/cpu/mpc85xx/t1040_ids.c @@ -47,6 +47,7 @@ struct liodn_id_table liodn_tbl[] = { /* SET_NEXUS_LIODN(557), -- not yet implemented */ SET_QE_LIODN(559), + SET_TDM_LIODN(560), }; int liodn_tbl_sz = ARRAY_SIZE(liodn_tbl); |