[Blackfin] arch: Fix bug to Enable bf548 to Re-program Clocks while Kernel boots.
Reprogram DDR EBIU register properly for bf548.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 5ebcfd2..1364dca 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -317,7 +317,7 @@
range 1 64
default "22" if BFIN533_EZKIT
default "45" if BFIN533_STAMP
- default "20" if (BFIN537_STAMP || BFIN527_EZKIT)
+ default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
default "22" if BFIN533_BLUETECHNIX_CM
default "20" if BFIN537_BLUETECHNIX_CM
default "20" if BFIN561_BLUETECHNIX_CM
@@ -354,7 +354,7 @@
range 1 15
default 5 if BFIN533_EZKIT
default 5 if BFIN533_STAMP
- default 4 if (BFIN537_STAMP || BFIN527_EZKIT)
+ default 4 if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
default 5 if BFIN533_BLUETECHNIX_CM
default 4 if BFIN537_BLUETECHNIX_CM
default 4 if BFIN561_BLUETECHNIX_CM
@@ -409,6 +409,7 @@
default 32 if BFIN533_EZKIT
default 64 if BFIN527_EZKIT
default 64 if BFIN537_STAMP
+ default 64 if BFIN548_EZKIT
default 64 if BFIN561_EZKIT
default 128 if BFIN533_STAMP
default 64 if PNAV10
@@ -416,6 +417,7 @@
config MEM_ADD_WIDTH
int "SDRAM Memory Address Width"
+ depends on (!BF54x)
default 9 if BFIN533_EZKIT
default 9 if BFIN561_EZKIT
default 9 if H8606_HVSISTEMAS
@@ -424,6 +426,19 @@
default 11 if BFIN533_STAMP
default 10 if PNAV10
+
+choice
+ prompt "DDR SDRAM Chip Type"
+ depends on BFIN548_EZKIT
+ default MEM_MT46V32M16_5B
+
+config MEM_MT46V32M16_6T
+ bool "MT46V32M16_6T"
+
+config MEM_MT46V32M16_5B
+ bool "MT46V32M16_5B"
+endchoice
+
config ENET_FLASH_PIN
int "PF port/pin used for flash and ethernet sharing"
depends on (BFIN533_STAMP)
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 745662e..74fe258 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -324,12 +324,25 @@
w[p0] = r0.l;
ssync;
+#if defined(CONFIG_BF54x)
+ P2.H = hi(EBIU_RSTCTL);
+ P2.L = lo(EBIU_RSTCTL);
+ R0 = [P2];
+ BITSET (R0, 3);
+#else
P2.H = hi(EBIU_SDGCTL);
P2.L = lo(EBIU_SDGCTL);
R0 = [P2];
BITSET (R0, 24);
+#endif
[P2] = R0;
SSYNC;
+#if defined(CONFIG_BF54x)
+.LSRR_MODE:
+ R0 = [P2];
+ CC = BITTST(R0, 4);
+ if !CC JUMP .LSRR_MODE;
+#endif
r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */
r0 = r0 << 9; /* Shift it over, */
@@ -361,6 +374,39 @@
w[p0] = r0.l;
ssync;
+#if defined(CONFIG_BF54x)
+ P2.H = hi(EBIU_RSTCTL);
+ P2.L = lo(EBIU_RSTCTL);
+ R0 = [P2];
+ CC = BITTST(R0, 0);
+ if CC jump .Lskipddrrst;
+ BITSET (R0, 0);
+.Lskipddrrst:
+ BITCLR (R0, 3);
+ [P2] = R0;
+ SSYNC;
+
+ p0.l = lo(EBIU_DDRCTL0);
+ p0.h = hi(EBIU_DDRCTL0);
+ r0.l = lo(mem_DDRCTL0);
+ r0.h = hi(mem_DDRCTL0);
+ [p0] = r0;
+ ssync;
+
+ p0.l = lo(EBIU_DDRCTL1);
+ p0.h = hi(EBIU_DDRCTL1);
+ r0.l = lo(mem_DDRCTL1);
+ r0.h = hi(mem_DDRCTL1);
+ [p0] = r0;
+ ssync;
+
+ p0.l = lo(EBIU_DDRCTL2);
+ p0.h = hi(EBIU_DDRCTL2);
+ r0.l = lo(mem_DDRCTL2);
+ r0.h = hi(mem_DDRCTL2);
+ [p0] = r0;
+ ssync;
+#else
p0.l = lo(EBIU_SDRRC);
p0.h = hi(EBIU_SDRRC);
r0 = mem_SDRRC;
@@ -394,6 +440,7 @@
R1 = R1 | R0;
[P2] = R1;
SSYNC;
+#endif
p0.h = hi(SIC_IWR0);
p0.l = lo(SIC_IWR0);
diff --git a/include/asm-blackfin/mach-bf548/defBF54x_base.h b/include/asm-blackfin/mach-bf548/defBF54x_base.h
index 319a485..08f90c2 100644
--- a/include/asm-blackfin/mach-bf548/defBF54x_base.h
+++ b/include/asm-blackfin/mach-bf548/defBF54x_base.h
@@ -1772,17 +1772,36 @@
#define TRP 0x3c0000 /* Pre charge-to-active command period */
#define TRAS 0x3c00000 /* Min Active-to-pre charge time */
#define TRC 0x3c000000 /* Active-to-active time */
+#define DDR_TRAS(x) ((x<<22)&TRAS) /* DDR tRAS = (1~15) cycles */
+#define DDR_TRP(x) ((x<<18)&TRP) /* DDR tRP = (1~15) cycles */
+#define DDR_TRC(x) ((x<<26)&TRC) /* DDR tRC = (1~15) cycles */
+#define DDR_TRFC(x) ((x<<14)&TRFC) /* DDR tRFC = (1~15) cycles */
+#define DDR_TREFI(x) (x&TREFI) /* DDR tRFC = (1~15) cycles */
/* Bit masks for EBIU_DDRCTL1 */
#define TRCD 0xf /* Active-to-Read/write delay */
-#define MRD 0xf0 /* Mode register set to active */
+#define TMRD 0xf0 /* Mode register set to active */
#define TWR 0x300 /* Write Recovery time */
#define DDRDATWIDTH 0x3000 /* DDR data width */
#define EXTBANKS 0xc000 /* External banks */
#define DDRDEVWIDTH 0x30000 /* DDR device width */
#define DDRDEVSIZE 0xc0000 /* DDR device size */
-#define TWWTR 0xf0000000 /* Write-to-read delay */
+#define TWTR 0xf0000000 /* Write-to-read delay */
+#define DDR_TWTR(x) ((x<<28)&TWTR) /* DDR tWTR = (1~15) cycles */
+#define DDR_TMRD(x) ((x<<4)&TMRD) /* DDR tMRD = (1~15) cycles */
+#define DDR_TWR(x) ((x<<8)&TWR) /* DDR tWR = (1~15) cycles */
+#define DDR_TRCD(x) (x&TRCD) /* DDR tRCD = (1~15) cycles */
+#define DDR_DATWIDTH 0x2000 /* DDR data width */
+#define EXTBANK_1 0 /* 1 external bank */
+#define EXTBANK_2 0x4000 /* 2 external banks */
+#define DEVSZ_64 0x40000 /* DDR External Bank Size = 64MB */
+#define DEVSZ_128 0x80000 /* DDR External Bank Size = 128MB */
+#define DEVSZ_256 0xc0000 /* DDR External Bank Size = 256MB */
+#define DEVSZ_512 0 /* DDR External Bank Size = 512MB */
+#define DEVWD_4 0 /* DDR Device Width = 4 Bits */
+#define DEVWD_8 0x10000 /* DDR Device Width = 8 Bits */
+#define DEVWD_16 0x20000 /* DDR Device Width = 16 Bits */
/* Bit masks for EBIU_DDRCTL2 */
@@ -1790,6 +1809,10 @@
#define CASLATENCY 0x70 /* CAS latency */
#define DLLRESET 0x100 /* DLL Reset */
#define REGE 0x1000 /* Register mode enable */
+#define CL_1_5 0x50 /* DDR CAS Latency = 1.5 cycles */
+#define CL_2 0x20 /* DDR CAS Latency = 2 cycles */
+#define CL_2_5 0x60 /* DDR CAS Latency = 2.5 cycles */
+#define CL_3 0x30 /* DDR CAS Latency = 3 cycles */
/* Bit masks for EBIU_DDRCTL3 */
@@ -2257,6 +2280,10 @@
#define CSEL 0x30 /* Core Select */
#define SSEL 0xf /* System Select */
+#define CSEL_DIV1 0x0000 /* CCLK = VCO / 1 */
+#define CSEL_DIV2 0x0010 /* CCLK = VCO / 2 */
+#define CSEL_DIV4 0x0020 /* CCLK = VCO / 4 */
+#define CSEL_DIV8 0x0030 /* CCLK = VCO / 8 */
/* Bit masks for PLL_CTL */
diff --git a/include/asm-blackfin/mach-bf548/mem_init.h b/include/asm-blackfin/mach-bf548/mem_init.h
index e792eb7..befc290 100644
--- a/include/asm-blackfin/mach-bf548/mem_init.h
+++ b/include/asm-blackfin/mach-bf548/mem_init.h
@@ -28,10 +28,69 @@
* If not, write to the Free Software Foundation,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+#define MIN_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000 + 1)
-#if (CONFIG_MEM_MT46V32M16)
+#if (CONFIG_MEM_MT46V32M16_6T)
+#define DDR_SIZE DEVSZ_512
+#define DDR_WIDTH DEVWD_16
+
+#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(60))
+#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(42))
+#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15))
+#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(72))
+#define DDR_tREFI DDR_TREFI(MIN_DDR_SCLK(7800))
+
+#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15))
+#define DDR_tWTR DDR_TWTR(1)
+#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(12))
+#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15))
#endif
+#if (CONFIG_MEM_MT46V32M16_5B)
+#define DDR_SIZE DEVSZ_512
+#define DDR_WIDTH DEVWD_16
+
+#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(55))
+#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(40))
+#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15))
+#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(70))
+#define DDR_tREFI DDR_TREFI(MIN_DDR_SCLK(7800))
+
+#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15))
+#define DDR_tWTR DDR_TWTR(2)
+#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(10))
+#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15))
+#endif
+
+#if (CONFIG_MEM_GENERIC_BOARD)
+#define DDR_SIZE DEVSZ_512
+#define DDR_WIDTH DEVWD_16
+
+#define DDR_tRCD DDR_TRCD(3)
+#define DDR_tWTR DDR_TWTR(2)
+#define DDR_tWR DDR_TWR(2)
+#define DDR_tMRD DDR_TMRD(2)
+#define DDR_tRP DDR_TRP(3)
+#define DDR_tRAS DDR_TRAS(7)
+#define DDR_tRC DDR_TRC(10)
+#define DDR_tRFC DDR_TRFC(12)
+#define DDR_tREFI DDR_TREFI(1288)
+#endif
+
+#if (CONFIG_SCLK_HZ <= 133333333)
+#define DDR_CL CL_2
+#elif (CONFIG_SCLK_HZ <= 166666666)
+#define DDR_CL CL_2_5
+#else
+#define DDR_CL CL_3
+#endif
+
+#define mem_DDRCTL0 (DDR_tRP | DDR_tRAS | DDR_tRC | DDR_tRFC | DDR_tREFI)
+#define mem_DDRCTL1 (DDR_DATWIDTH | EXTBANK_1 | DDR_SIZE | DDR_WIDTH | DDR_tWTR \
+ | DDR_tMRD | DDR_tWR | DDR_tRCD)
+#define mem_DDRCTL2 DDR_CL
+
+
#if defined CONFIG_CLKIN_HALF
#define CLKIN_HALF 1
#else