From 4c52783b3d024e153c4972b97332e314bc3bdc46 Mon Sep 17 00:00:00 2001 From: roy zang Date: Thu, 2 Nov 2006 18:49:51 +0800 Subject: General code modification for mpc7448hpc2 board support. 1. Add 7447A and 7448 processor support. 2. Add the following flags. CFG_CONFIG_BUS_CLK : If the 74xx bus frequency can be configured dynamically (such as by switch on board), this flag should be set. CFG_EXCEPTION_AFTER_RELOCATE: If an exception occurs after the u-boot relocates to RAM, this flag should be set. CFG_SERIAL_HANG_IN_EXCEPTION: If the print out function will cause the system hang in exception, this flag should be set. There is a design issue for tsi108/109 pci configure read. When pci scan the slots, if there is no pci card, the tsi108/9 will cause a machine check exception for mpc7448 processor. Signed-off-by: Alexandre Bounine Signed-off-by: Roy Zang --- cpu/74xx_7xx/speed.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 51 insertions(+), 4 deletions(-) (limited to 'cpu/74xx_7xx/speed.c') diff --git a/cpu/74xx_7xx/speed.c b/cpu/74xx_7xx/speed.c index 2dc5107..d520794 100644 --- a/cpu/74xx_7xx/speed.c +++ b/cpu/74xx_7xx/speed.c @@ -31,6 +31,8 @@ DECLARE_GLOBAL_DATA_PTR; +extern unsigned long get_board_bus_clk(void); + static const int hid1_multipliers_x_10[] = { 25, /* 0000 - 2.5x */ 75, /* 0001 - 7.5x */ @@ -50,6 +52,41 @@ static const int hid1_multipliers_x_10[] = { 0 /* 1111 - off */ }; +static const int hid1_7447A_multipliers_x_10[] = { + 115, /* 00000 - 11.5x */ + 170, /* 00001 - 17x */ + 75, /* 00010 - 7.5x */ + 150, /* 00011 - 15x */ + 70, /* 00100 - 7x */ + 180, /* 00101 - 18x */ + 10, /* 00110 - bypass */ + 200, /* 00111 - 20x */ + 20, /* 01000 - 2x */ + 210, /* 01001 - 21x */ + 65, /* 01010 - 6.5x */ + 130, /* 01011 - 13x */ + 85, /* 01100 - 8.5x */ + 240, /* 01101 - 13x */ + 95, /* 01110 - 9.5x */ + 90, /* 01111 - 9x */ + 30, /* 10000 - 3x */ + 105, /* 10001 - 10.5x */ + 55, /* 10010 - 5.5x */ + 110, /* 10011 - 11x */ + 40, /* 10100 - 4x */ + 100, /* 10101 - 10x */ + 50, /* 10110 - 5x */ + 120, /* 10111 - 12x */ + 80, /* 11000 - 8x */ + 140, /* 11001 - 14x */ + 60, /* 11010 - 6x */ + 160, /* 11011 - 16x */ + 135, /* 11100 - 13.5x */ + 280, /* 11101 - 28x */ + 0, /* 11110 - off */ + 125 /* 11111 - 12.5x */ +}; + static const int hid1_fx_multipliers_x_10[] = { 00, /* 0000 - off */ 00, /* 0001 - off */ @@ -89,8 +126,19 @@ int get_clocks (void) { ulong clock = 0; +#ifdef CFG_CONFIG_BUS_CLK + gd->bus_clk = get_board_bus_clk(); +#else + gd->bus_clk = CFG_BUS_CLK; +#endif + /* calculate the clock frequency based upon the CPU type */ switch (get_cpu_type()) { + case CPU_7447A: + case CPU_7448: + clock = (gd->bus_clk / 10) * hid1_7447A_multipliers_x_10[(get_hid1 () >> 12) & 0x1F]; + break; + case CPU_7455: case CPU_7457: /* @@ -98,12 +146,12 @@ int get_clocks (void) * Make sure division is done before multiplication to prevent 32-bit * arithmetic overflows which will cause a negative number */ - clock = (CFG_BUS_CLK / 10) * hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF]; + clock = (gd->bus_clk / 10) * hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF]; break; case CPU_750GX: case CPU_750FX: - clock = CFG_BUS_CLK * hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10; + clock = gd->bus_clk * hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10; break; case CPU_7450: @@ -120,7 +168,7 @@ int get_clocks (void) * Make sure division is done before multiplication to prevent 32-bit * arithmetic overflows which will cause a negative number */ - clock = (CFG_BUS_CLK / 10) * hid1_multipliers_x_10[get_hid1 () >> 28]; + clock = (gd->bus_clk / 10) * hid1_multipliers_x_10[get_hid1 () >> 28]; break; case CPU_UNKNOWN: @@ -130,7 +178,6 @@ int get_clocks (void) } gd->cpu_clk = clock; - gd->bus_clk = CFG_BUS_CLK; return (0); } -- cgit v1.1 From ee311214e0d216f904feea269599d0934bf71f23 Mon Sep 17 00:00:00 2001 From: roy zang Date: Fri, 1 Dec 2006 11:47:36 +0800 Subject: Clean up the code according to codestyle: (1) remove some C++ comments. (2) remove trailing white space. (3) remove trailing empty line. (4) Indentation by table. (5) remove {} in one line condition. (6) add space before '(' in function call. Remove some weird printf () output. Add necessary comments. Modified Makefile to support building in a separate directory. --- cpu/74xx_7xx/speed.c | 82 +++++++++++++++++++++++++++------------------------- 1 file changed, 43 insertions(+), 39 deletions(-) (limited to 'cpu/74xx_7xx/speed.c') diff --git a/cpu/74xx_7xx/speed.c b/cpu/74xx_7xx/speed.c index d520794..af4aca5 100644 --- a/cpu/74xx_7xx/speed.c +++ b/cpu/74xx_7xx/speed.c @@ -31,7 +31,7 @@ DECLARE_GLOBAL_DATA_PTR; -extern unsigned long get_board_bus_clk(void); +extern unsigned long get_board_bus_clk (void); static const int hid1_multipliers_x_10[] = { 25, /* 0000 - 2.5x */ @@ -53,38 +53,38 @@ static const int hid1_multipliers_x_10[] = { }; static const int hid1_7447A_multipliers_x_10[] = { - 115, /* 00000 - 11.5x */ - 170, /* 00001 - 17x */ - 75, /* 00010 - 7.5x */ - 150, /* 00011 - 15x */ - 70, /* 00100 - 7x */ - 180, /* 00101 - 18x */ - 10, /* 00110 - bypass */ - 200, /* 00111 - 20x */ - 20, /* 01000 - 2x */ - 210, /* 01001 - 21x */ - 65, /* 01010 - 6.5x */ - 130, /* 01011 - 13x */ - 85, /* 01100 - 8.5x */ - 240, /* 01101 - 13x */ - 95, /* 01110 - 9.5x */ - 90, /* 01111 - 9x */ - 30, /* 10000 - 3x */ - 105, /* 10001 - 10.5x */ - 55, /* 10010 - 5.5x */ - 110, /* 10011 - 11x */ - 40, /* 10100 - 4x */ - 100, /* 10101 - 10x */ - 50, /* 10110 - 5x */ - 120, /* 10111 - 12x */ - 80, /* 11000 - 8x */ - 140, /* 11001 - 14x */ - 60, /* 11010 - 6x */ - 160, /* 11011 - 16x */ - 135, /* 11100 - 13.5x */ - 280, /* 11101 - 28x */ - 0, /* 11110 - off */ - 125 /* 11111 - 12.5x */ + 115, /* 00000 - 11.5x */ + 170, /* 00001 - 17x */ + 75, /* 00010 - 7.5x */ + 150, /* 00011 - 15x */ + 70, /* 00100 - 7x */ + 180, /* 00101 - 18x */ + 10, /* 00110 - bypass */ + 200, /* 00111 - 20x */ + 20, /* 01000 - 2x */ + 210, /* 01001 - 21x */ + 65, /* 01010 - 6.5x */ + 130, /* 01011 - 13x */ + 85, /* 01100 - 8.5x */ + 240, /* 01101 - 13x */ + 95, /* 01110 - 9.5x */ + 90, /* 01111 - 9x */ + 30, /* 10000 - 3x */ + 105, /* 10001 - 10.5x */ + 55, /* 10010 - 5.5x */ + 110, /* 10011 - 11x */ + 40, /* 10100 - 4x */ + 100, /* 10101 - 10x */ + 50, /* 10110 - 5x */ + 120, /* 10111 - 12x */ + 80, /* 11000 - 8x */ + 140, /* 11001 - 14x */ + 60, /* 11010 - 6x */ + 160, /* 11011 - 16x */ + 135, /* 11100 - 13.5x */ + 280, /* 11101 - 28x */ + 0, /* 11110 - off */ + 125 /* 11111 - 12.5x */ }; static const int hid1_fx_multipliers_x_10[] = { @@ -127,16 +127,17 @@ int get_clocks (void) ulong clock = 0; #ifdef CFG_CONFIG_BUS_CLK - gd->bus_clk = get_board_bus_clk(); + gd->bus_clk = get_board_bus_clk (); /* bus clock is configurable */ #else - gd->bus_clk = CFG_BUS_CLK; + gd->bus_clk = CFG_BUS_CLK; /* bus clock is a fixed frequency */ #endif /* calculate the clock frequency based upon the CPU type */ switch (get_cpu_type()) { case CPU_7447A: case CPU_7448: - clock = (gd->bus_clk / 10) * hid1_7447A_multipliers_x_10[(get_hid1 () >> 12) & 0x1F]; + clock = (gd->bus_clk / 10) * + hid1_7447A_multipliers_x_10[(get_hid1 () >> 12) & 0x1F]; break; case CPU_7455: @@ -146,12 +147,14 @@ int get_clocks (void) * Make sure division is done before multiplication to prevent 32-bit * arithmetic overflows which will cause a negative number */ - clock = (gd->bus_clk / 10) * hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF]; + clock = (gd->bus_clk / 10) * + hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF]; break; case CPU_750GX: case CPU_750FX: - clock = gd->bus_clk * hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10; + clock = gd->bus_clk * + hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10; break; case CPU_7450: @@ -168,7 +171,8 @@ int get_clocks (void) * Make sure division is done before multiplication to prevent 32-bit * arithmetic overflows which will cause a negative number */ - clock = (gd->bus_clk / 10) * hid1_multipliers_x_10[get_hid1 () >> 28]; + clock = (gd->bus_clk / 10) * + hid1_multipliers_x_10[get_hid1 () >> 28]; break; case CPU_UNKNOWN: -- cgit v1.1 From 4dbcd69e3e2776ea334590d5768e3692c5fae5c1 Mon Sep 17 00:00:00 2001 From: roy zang Date: Mon, 4 Dec 2006 17:54:21 +0800 Subject: Introduce PLL_CFG[0:4] table for processor 7448/7447A/7455/7457. The original multiplier table can not refect the real PLL clock behavior of these processors. Please refer to the hardware specification for detailed information of the corresponding processors. Signed-off-by: Roy Zang --- cpu/74xx_7xx/speed.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) (limited to 'cpu/74xx_7xx/speed.c') diff --git a/cpu/74xx_7xx/speed.c b/cpu/74xx_7xx/speed.c index af4aca5..d8c40ce 100644 --- a/cpu/74xx_7xx/speed.c +++ b/cpu/74xx_7xx/speed.c @@ -52,7 +52,8 @@ static const int hid1_multipliers_x_10[] = { 0 /* 1111 - off */ }; -static const int hid1_7447A_multipliers_x_10[] = { +/* PLL_CFG[0:4] table for cpu 7448/7447A/7455/7457 */ +static const int hid1_74xx_multipliers_x_10[] = { 115, /* 00000 - 11.5x */ 170, /* 00001 - 17x */ 75, /* 00010 - 7.5x */ @@ -66,7 +67,7 @@ static const int hid1_7447A_multipliers_x_10[] = { 65, /* 01010 - 6.5x */ 130, /* 01011 - 13x */ 85, /* 01100 - 8.5x */ - 240, /* 01101 - 13x */ + 240, /* 01101 - 24x */ 95, /* 01110 - 9.5x */ 90, /* 01111 - 9x */ 30, /* 10000 - 3x */ @@ -126,29 +127,24 @@ int get_clocks (void) { ulong clock = 0; -#ifdef CFG_CONFIG_BUS_CLK - gd->bus_clk = get_board_bus_clk (); /* bus clock is configurable */ -#else +#ifdef CFG_BUS_CLK gd->bus_clk = CFG_BUS_CLK; /* bus clock is a fixed frequency */ +#else + gd->bus_clk = get_board_bus_clk (); /* bus clock is configurable */ #endif /* calculate the clock frequency based upon the CPU type */ switch (get_cpu_type()) { case CPU_7447A: case CPU_7448: - clock = (gd->bus_clk / 10) * - hid1_7447A_multipliers_x_10[(get_hid1 () >> 12) & 0x1F]; - break; - case CPU_7455: case CPU_7457: /* - * It is assumed that the PLL_EXT line is zero. * Make sure division is done before multiplication to prevent 32-bit * arithmetic overflows which will cause a negative number */ clock = (gd->bus_clk / 10) * - hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF]; + hid1_74xx_multipliers_x_10[(get_hid1 () >> 12) & 0x1F]; break; case CPU_750GX: -- cgit v1.1