diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/brcm-2.4/patches/014-bcm5354.patch | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/target/linux/brcm-2.4/patches/014-bcm5354.patch b/target/linux/brcm-2.4/patches/014-bcm5354.patch new file mode 100644 index 0000000000..fed89caf72 --- /dev/null +++ b/target/linux/brcm-2.4/patches/014-bcm5354.patch @@ -0,0 +1,155 @@ +--- a/arch/mips/bcm947xx/include/sbchipc.h 2007-11-23 12:12:01.000000000 -0500 ++++ b/arch/mips/bcm947xx/include/sbchipc.h 2007-11-25 06:16:42.000000000 -0500 +@@ -188,6 +188,7 @@ + #define CAP_JTAGP 0x00400000 /* JTAG Master Present */ + #define CAP_ROM 0x00800000 /* Internal boot rom active */ + #define CAP_BKPLN64 0x08000000 /* 64-bit backplane */ ++#define CAP_PMU 0x10000000 /* PMU Present, rev >= 20 */ + + /* PLL type */ + #define PLL_NONE 0x00000000 +@@ -199,6 +200,9 @@ + #define PLL_TYPE6 0x00028000 /* 100/200 or 120/240 only */ + #define PLL_TYPE7 0x00038000 /* 25Mhz, 4 dividers */ + ++/* watchdog clock */ ++#define WATCHDOG_CLOCK_5354 32000 /* Hz */ ++ + /* corecontrol */ + #define CC_UARTCLKO 0x00000001 /* Drive UART with internal clock */ + #define CC_SE 0x00000002 /* sync clk out enable (corerev >= 3) */ +--- a/arch/mips/bcm947xx/include/bcmdevs.h 2007-11-23 12:12:01.000000000 -0500 ++++ b/arch/mips/bcm947xx/include/bcmdevs.h 2007-11-25 05:58:20.000000000 -0500 +@@ -121,6 +121,7 @@ + #define BCM5365_CHIP_ID 0x5365 /* 5365 chipcommon chipid */ + #define BCM5350_CHIP_ID 0x5350 /* bcm5350 chipcommon chipid */ + #define BCM5352_CHIP_ID 0x5352 /* bcm5352 chipcommon chipid */ ++#define BCM5354_CHIP_ID 0x5354 /* bcm5354 chipcommon chipid */ + + #define BCM4320_CHIP_ID 0x4320 /* bcm4320 chipcommon chipid */ + +--- a/arch/mips/bcm947xx/sbmips.c 2007-11-23 12:12:02.000000000 -0500 ++++ b/arch/mips/bcm947xx/sbmips.c 2007-11-25 05:40:40.000000000 -0500 +@@ -290,6 +290,12 @@ + n = R_REG(osh, &eir->clockcontrol_n); + m = R_REG(osh, &eir->clockcontrol_sb); + } else if ((cc = (chipcregs_t *) sb_setcore(sbh, SB_CC, 0))) { ++ /* 5354 chip uses a non programmable PLL of frequency 240MHz */ ++ if (sb_chip(sbh) == BCM5354_CHIP_ID) { ++ rate = 240000000; ++ goto out; ++ } ++ + pll_type = R_REG(osh, &cc->capabilities) & CAP_PLL_MASK; + n = R_REG(osh, &cc->clockcontrol_n); + if ((pll_type == PLL_TYPE2) || +@@ -612,6 +618,15 @@ + clockcontrol_pci = &eir->clockcontrol_pci; + clockcontrol_m2 = &cc->clockcontrol_m2; + } else if ((cc = (chipcregs_t *) sb_setcore(sbh, SB_CC, 0))) { ++ ++ /* 5354 chipcommon pll setting can't be changed. ++ * The PMU on power up comes up with the default clk frequency ++ * of 240MHz ++ */ ++ if (sb_chip(sbh) == BCM5354_CHIP_ID) { ++ ret = TRUE; ++ goto done; ++ } + pll_type = R_REG(osh, &cc->capabilities) & CAP_PLL_MASK; + if (pll_type == PLL_TYPE6) { + clockcontrol_n = NULL; +--- a/arch/mips/bcm947xx/sbutils.c 2007-11-23 12:12:02.000000000 -0500 ++++ b/arch/mips/bcm947xx/sbutils.c 2007-11-25 06:22:43.000000000 -0500 +@@ -791,8 +791,14 @@ + /* readback */ + if (regoff >= SBCONFIGOFF) + w = R_SBREG(si, r); +- else ++ else { ++ if ((si->sb.chip == BCM5354_CHIP_ID) && ++ (coreidx == SB_CC_IDX) && ++ (regoff == OFFSETOF(chipcregs_t, watchdog))) { ++ w = val; ++ } else + w = R_REG(si->osh, r); ++ } + + if (!fast) { + /* restore core index */ +@@ -1902,6 +1908,15 @@ + n = R_REG(si->osh, &eir->clockcontrol_n); + m = R_REG(si->osh, &eir->clockcontrol_sb); + } else if ((cc = (chipcregs_t *) sb_setcore(sbh, SB_CC, 0))) { ++ ++ if (R_REG(si->osh, &cc->capabilities) & CAP_PMU) { ++ if (sb_chip(sbh) == BCM5354_CHIP_ID) { ++ /* 5354 has a constant sb clock of 120MHz */ ++ rate = 120000000; ++ goto end; ++ } else ++ ASSERT(0); ++ } + pll_type = R_REG(si->osh, &cc->capabilities) & CAP_PLL_MASK; + if (pll_type == PLL_NONE) { + INTR_RESTORE(si, intr_val); +@@ -1929,6 +1944,7 @@ + rate = rate / 2; + } + ++end: + /* switch back to previous core */ + sb_setcoreidx(sbh, idx); + +--- a/arch/mips/bcm947xx/hndchipc.c 2007-11-23 12:12:02.000000000 -0500 ++++ b/arch/mips/bcm947xx/hndchipc.c 2007-11-25 06:31:15.000000000 -0500 +@@ -93,6 +93,9 @@ + chipcregs_t *cc = (chipcregs_t *) regs; + uint32 rev, cap, pll, baud_base, div; + ++ /* Default value */ ++ div = 48; ++ + /* Determine core revision and capabilities */ + rev = sb_corerev(sbh); + cap = R_REG(osh, &cc->capabilities); +@@ -108,22 +111,29 @@ + R_REG(osh, &cc->clockcontrol_m2)); + div = 1; + } else { +- /* Fixed ALP clock */ +- if (rev >= 11 && rev != 15) { +- baud_base = 20000000; ++/* 5354 chip common uart uses a constant clock ++ * frequency of 25MHz */ ++ if (sb_corerev(sbh) == 20) { ++ /* Set the override bit so we don't divide it */ ++ W_REG(osh, &cc->corecontrol, CC_UARTCLKO); ++ baud_base = 25000000; ++ } else if (rev >= 11 && rev != 15) { ++ /* Fixed ALP clock */ ++// baud_base = sb_alp_clock(sbh); ++ baud_base = 20000000; + div = 1; + /* Set the override bit so we don't divide it */ + W_REG(osh, &cc->corecontrol, CC_UARTCLKO); +- } ++ + /* Internal backplane clock */ +- else if (rev >= 3) { +- baud_base = sb_clock(sbh); +- div = 2; /* Minimum divisor */ +- W_REG(osh, &cc->clkdiv, ++ } else if (rev >= 3) { ++ baud_base = sb_clock(sbh); ++ div = 2; /* Minimum divisor */ ++ W_REG(osh, &cc->clkdiv, + ((R_REG(osh, &cc->clkdiv) & ~CLKD_UART) | div)); +- } ++ + /* Fixed internal backplane clock */ +- else { ++ } else { + baud_base = 88000000; + div = 48; + } |